JP7217545B2 - System and program etc. - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law Posting address https://www. yupiteru. co. jp/products/radar/ls300/https://www. yupiteru. co. jp/products/radar/ls300/function. html https://www. yupiteru. co. jp/products/radar/ls300/spec. html https://www. yupiteru. co. jp/products/radar/ls300/option. html https://www. yupiteru. co. jp/products/radar/ls300/support. html https://my. yupiteru. co. jp/upload/save_image/manual/pdf/LS300. pdf https://www. yupiteru. co. jp/products/radar/gs103/ https://www. yupiteru. co. jp/products/radar/gs103/function. html https://www. yupiteru. co. jp/products/radar/gs103/spec. html https://www. yupiteru. co. jp/products/radar/gs103/option. html https://www. yupiteru. co. jp/products/radar/gs103/support. html https://my. yupiteru. co. jp/upload/save_image/manual/pdf/GS103. pdf https://www. yupiteru. co. jp/products/radar/a350alpha/https://www. yupiteru. co. jp/products/radar/a350alpha/function. html https://www. yupiteru. co. jp/products/radar/a350alpha/spec. html https://www. yupiteru. co. jp/products/radar/a350alpha/option. html

Article 30, Paragraph 2 of the Patent Law applies https://www. yupiteru. co. jp/products/radar/a350alpha/support. html https://my. yupiteru. co. jp/upload/save_image/manual/pdf/A350Alpha. pdf https://www. yupiteru. co. jp/products/radar/wr70/https://www. yupiteru. co. jp/products/radar/wr70/function. html https://www. yupiteru. co. jp/products/radar/wr70/spec. html https://www. yupiteru. co. jp/products/radar/wr70/option. html https://www. yupiteru. co. jp/products/radar/wr70/support. html https://my. yupiteru. co. jp/upload/save_image/manual/pdf/WR70. pdf http://driver-box. yaesu-net. co. jp/new-article/15326/ (Posted on March 15, 2019)

Application of Article 30, Paragraph 2 of the Patent Law Posting address https://www. yupiteru. co. jp/products/radar/z100l/https://www. yupiteru. co. jp/products/radar/z100l/function. html https://www. yupiteru. co. jp/products/radar/z100l/spec. html https://www. yupiteru. co. jp/products/radar/z100l/option. html https://www. yupiteru. co. jp/products/radar/z100l/support. html https://my. yupiteru. co. jp/upload/save_image/manual/pdf/Z100L. pdf (Publication date: March 29, 2019) Car Goods Magazine May 2019, page 25, published on March 15, 2019 at Sanei Shobo Car Goods Press vol. 88, page 35, published at Tokuma Shoten Published on March 20, 2019 Driver May 2019 issue, page 7, published at Yaesu Publishing Published on March 26, 2019 Best Car 2019 April 26, 2009, pp. 150-151, Published by Kodansha

The present invention relates to systems, programs, and the like.

There are various types of systems for measuring the speed of vehicles traveling on roads. In the case of the radar system, a speed measuring device installed along the road emits microwaves in a predetermined frequency band toward the vehicle, receives reflected waves from the vehicle, and measures the running speed of the vehicle.

For a user such as a vehicle driver, it may be useful to be able to know in advance the presence of a speed measuring device. Patent Literatures 1 and 2 disclose electronic equipment that receives microwaves emitted from a vehicle speed measuring device and outputs an alarm when detecting the presence of the vehicle speed measuring device.

JP-A-2008-64588 JP 2017-96728 A

Measurement of the speed of movement of an object can also be performed using light. In the case of this optical method, the light emitting device emits light toward an object, receives reflected waves from the object, and measures the moving speed. Even when such an optical speed measuring device is installed, it is desirable to notify the user of its existence. One of the objects of the present invention is to provide a technique for notifying a user of the presence of a light-emitting device that emits light of a specific wavelength.

The purpose of the invention of the present application is not limited to this, and we intend to acquire rights for the configuration aiming to obtain the effect produced by the configuration disclosed in the specification and drawings by divisional application, amendment, etc. . For example, the present specification discloses a problem in which the phrase "can be done" is read as "is the problem." The problems are described as independent ones, and we intend to acquire the rights for the structure for solving each problem independently by filing a divisional application, an amendment, etc. Even if the problem is implicitly grasped from the description of the specification, the applicant intends to claim part of the structure described in this specification in an amended or divisional application. It also discloses a configuration that solves a problem that combines these independent problems, and has the intention to acquire the right.

(1) A system for notifying the presence of a device installed in a vehicle to detect the presence of the vehicle by emitting light of a specific wavelength, comprising an incident surface having an aspherical curved surface and light incident on the incident surface. a light-receiving element for receiving the light emitted from the exit surface;
and a control unit that notifies the presence of the light-emitting device based on the light of the specific wavelength received by the light-receiving element.

In this way, it is possible to provide a technique for notifying the user of the presence of a light-emitting device that emits light of a specific wavelength. In particular, by using a condensing lens having an incident surface with an aspherical curved surface, the light receiving element can receive light coming from a wide range in a predetermined direction, so that the presence of the light emitting device can be more reliably notified. can.

The light emitting device is preferably a device that emits light whose energy is distributed in at least a narrower wavelength range than that of ambient light. Ambient light may be light other than the target light to be received. The specific wavelength may be a wavelength at which the energy of the light emitted by the light emitting device reaches its peak. The specific wavelength is preferably a wavelength that is imperceptible to humans. For example, it is preferable to have energy at a specific wavelength outside the visible light range. The specific wavelength belongs to the infrared light region, for example, and is preferably 905 nm. The specific wavelength is not limited to this, and may be 850, 950 nm, 1900 nm or other wavelengths. The wavelength different from the specific wavelength may be a wavelength different from the wavelength at which the energy of the light emitted by the light emitting device reaches its peak. A wavelength different from the specific wavelength may be a wavelength included in the visible light region. The amount of received light preferably indicates the amount of light of a specific wavelength selected and received by the light receiving unit. Selecting a wavelength can be said to select a part of wavelengths from a certain wavelength range and at least not to select a part of wavelengths other than that. The control to notify may be the control to notify information in a user-recognizable manner.

(2) The incidence surface may include a convex curved surface along the width direction of the vehicle.

With this configuration, the light receiving element can receive light coming from a wide range in the width direction of the vehicle, so that the existence of the light emitting device can be notified more reliably.

(3) It is preferable that the incident surface has a length in the width direction of the vehicle greater than a length in the height direction of the vehicle.

With this configuration, the light receiving element can receive light coming from a wide range in the width direction of the vehicle, so that the existence of the light emitting device can be notified more reliably.

(4) The incident surface may include a convex curved surface along each direction of the width direction of the vehicle and the height direction of the vehicle.

With this configuration, the light receiving element can receive light coming from a wide range of directions, so that the presence of the light emitting device can be more reliably notified.

(5) The incident surface may include a convex curved surface along the width direction of the vehicle and a flat curved surface along the height direction of the vehicle.

With this configuration, the light receiving element can receive light coming from a wide range in the width direction of the vehicle, so that the existence of the light emitting device can be notified more reliably.

(6) The exit surface may include a flat surface.

With this configuration, the light receiving element can receive light coming from a wide range in the width direction of the vehicle, so that the existence of the light emitting device can be notified more reliably.

(7) The light receiving element may be arranged at a position closer to the condenser lens than the focal length position of the condenser lens.

In this way, light with a wide incident angle can be received by arranging the light receiving element at a position closer to the condenser lens than the focal length position.

(8) Preferably, the control unit notifies the presence of the device when the pulse width of the light received by the light receiving unit is within a certain range from a reference pulse width.

Referencing the width of the pulse of received light may be useful in detecting a light-emitting device that emits a specific pulsed light. By doing so, it is possible to reduce the number of reports misrecognizing ambient light as light from the light emitting device.

(9) It is preferable that the control unit notifies the presence of the light emitting device when a pulsed light having a pulse width of 20 ms is received.

In this way, it is possible to notify the presence of the light-emitting device that measures the speed of the vehicle and controls it.

(10) Preferably, the control unit notifies the presence of the device when the pulse interval of the light received by the light receiving unit is within a certain range from a reference pulse interval.

Referencing the pulse interval of received light may be useful in detecting a light-emitting device that emits specific pulsed light. By doing so, it is possible to reduce the number of reports misrecognizing ambient light as light from the light emitting device.

(11) It is preferable that the control unit notifies the presence of the light emitting device when the pulsed light with the pulse interval of 80 ms is received.

In this way, it is possible to notify the presence of the light-emitting device that measures the speed of the vehicle and controls it.

(12) Preferably, the control section changes the level of the notification according to at least one of a pulse width and a pulse interval of the light received by the light receiving section.

In this way, the user can understand how important the content of the notification is.

(13) The control unit preferably performs control to notify the presence of the light emitting device when the pulsed light of the light of the specific wavelength is received at least once.

In this way, it is possible to immediately let the user know that the fermentation apparatus exists.

(14) It is preferable to have a reflecting section that reflects at least part of the light emitted from the condenser lens toward the light receiving element.

By doing so, the amount of light received by the light receiving element from the light emitting device increases, so that the existence of the light emitting device can be notified more reliably.

(15) The reflecting section is provided at a position different from the optical path from the lens to the light receiving element, and has a reflecting surface that reflects at least part of the light emitted from the lens toward the light receiving element. should be included.

By doing so, the amount of light received by the light receiving element from the light emitting device increases, so that the existence of the light emitting device can be notified more reliably.

(16) The reflecting surface may be arranged so as to surround the optical path.

By doing so, the amount of light received by the light receiving element from the light emitting device increases, so that the existence of the light emitting device can be notified more reliably.

(17) The reflecting section is provided on an optical path from the lens to the light receiving element, and uses total reflection of light to reflect at least part of light emitted from the lens toward the light receiving element. It is preferable to include a member that

By doing so, the amount of light received by the light receiving element from the light emitting device increases, so that the existence of the light emitting device can be notified more reliably.

(18) having an amplifier that amplifies a signal corresponding to the amount of light received from the light receiving element, and a differential amplifier that outputs a signal corresponding to a difference between the level of the amplified signal and a threshold level; Preferably, the control section performs control to report the presence of the light emitting device based on the signal corresponding to the difference.

With this configuration, the amount of light received by the light receiving element from the light emitting device is amplified, so that the presence of the light emitting device can be notified more reliably.

(19) Preferably, the control section performs control to change the threshold level.

By doing so, it is possible to reduce the possibility that the control for notifying the presence of the light emitting device cannot be performed due to the influence of ambient light or electromagnetic noise.

(20) The control unit preferably sets the threshold level so as to exceed at least the level of light emitted by equipment provided in the vehicle.

In this way, it is possible to reduce the possibility that the control for notifying the existence of the light emitting device cannot be performed due to the influence of the light emitted by the equipment provided in the vehicle.

(21) A substrate including a first surface on the condenser lens side and a second surface facing the first surface, the light receiving element being provided on the second surface side of the substrate, and the substrate is preferably provided with a light transmitting portion for guiding light from the first surface side to the light receiving element.

With this configuration, the substrate is positioned between the light receiving element and the light receiving element lens, so the space corresponding to the focal length can be effectively used, and the thickness of the entire housing can be suppressed.

The invention may also be specified as follows.
(A) A system provided in a vehicle, comprising a light receiving unit that selects and receives light of a specific wavelength from incident light and outputs a signal corresponding to the amount of received light, and based on the signal output by the light receiving unit and a control unit that performs first notification control for notifying the presence of the light emitting device that emits light of the specific wavelength.

In this way, it is possible to provide a technique for notifying the user of the presence of a light-emitting device that emits light of a specific wavelength.

The light emitting device is preferably a device that emits light whose energy is distributed in at least a narrower wavelength range than that of ambient light. Ambient light may be light other than the target light to be received. The specific wavelength may be a wavelength at which the energy of the light emitted by the light emitting device reaches its peak. The specific wavelength is preferably a wavelength that is imperceptible to humans. For example, it is preferable to have energy at a specific wavelength outside the visible light range. The specific wavelength belongs to the infrared light region, for example, and is preferably 905 nm. The specific wavelength is not limited to this, and may be 850, 950 nm, 1900 nm or other wavelengths. The wavelength different from the specific wavelength may be a wavelength different from the wavelength at which the energy of the light emitted by the light emitting device reaches its peak. A wavelength different from the specific wavelength may be a wavelength included in the visible light region. The amount of received light preferably indicates the amount of light of a specific wavelength selected and received by the light receiving unit. Selecting a wavelength can be said to select a part of wavelengths from a certain wavelength range and at least not to select a part of wavelengths other than that. Notification control may be defined as control for notifying information in a user-recognizable manner.

(B) The control unit may be a system that performs the first notification control to display an animation image including an image imitating the light emitting device.

This makes it easier for the user to recognize that there is a light-emitting device that the vehicle is approaching.

(C) The control unit may be a system that performs the first notification control to display at least one of the attribute of the light emitting device and the state of the vehicle in addition to the animation image.

In this way, the user can recognize at least one of the attributes of the light emitting device and the state of the vehicle.

(D) The control unit may be a system that performs second notification control different from the first notification control when the position of the vehicle has a predetermined relationship with the position of the light emitting device.

In this way, it is possible for the user to recognize which of the light-emitting device that generated the light of the specific wavelength received by the system and the light-emitting device specified based on the position of the vehicle is approaching. can.

(E) A radio wave receiving unit for receiving a predetermined radio wave, wherein the control unit performs third notification control to notify the presence of the radio wave generator in response to receiving the predetermined radio wave, The system may stop the third notification control while the first notification control is being performed.

By doing so, it is possible not to notify the existence of the radio wave generator when the existence of the light emitting device of the specific wavelength is notified.

(F) The control unit may be a system that performs the third notification control to display an animation image including an image simulating the generator.

In this way, it is possible to make it easier for the user to recognize that there is a radio wave generator that the vehicle is approaching.

(G) Preferably, the control unit performs a fourth notification control according to the positional relationship between the vehicle and the other vehicle, and performs the fourth notification control in parallel with the first notification control.

In some cases, the priority of reporting information according to the positional relationship between the host vehicle and the other vehicle is high. When the need for this notification arises, even when the own vehicle is approaching the light emitting device, it is possible to provide information according to the positional relationship between the own vehicle and the other vehicle.

(H) The control unit may be a system that stops the first notification control when the speed of the vehicle is less than a predetermined speed.

By doing so, it is possible to prevent unnecessary notification when the speed of the vehicle is less than the predetermined speed.

(I) When the position of the vehicle satisfies a predetermined condition, the control unit may perform the first notification control even if the speed of the vehicle is less than the predetermined speed.

In this way, even if the speed of the vehicle is less than the predetermined speed, it is possible to notify the presence of the light-emitting device according to the position of the vehicle.

(K) The control unit performs fifth notification control to notify the state of the occupant of the vehicle based on the image of the camera that captures the interior of the vehicle, and during the period during which the first notification control is performed It is preferable that the system stops the fifth notification control.

By doing so, it is possible not to report the state of the vehicle occupant when the presence of the light-emitting device of the specific wavelength is reported.

(L) A housing having a light transmitting portion that transmits at least the light of the specific wavelength, the light receiving portion being disposed inside the housing, and A system that receives light of a specific wavelength may be used.

In this way, the light of the specific wavelength can be received using the light receiving section accommodated in the housing.

(M) The light-receiving section includes a first filter facing the light-transmitting section, a first light-receiving element for receiving light that has passed through the first filter, a second filter facing the light-transmitting section, and the a second light receiving element that receives light that has passed through the second filter, and the housing includes a first window corresponding to the first light receiving element and a second window corresponding to the second light receiving element. should be a system having

In this way, the presence of the light emitting device can be notified by the configuration using at least two sets of light receiving elements housed in the housing.

(N) The first light-receiving element and the second light-receiving element are housed in a shield case made of a material having conductivity, and the space in which the first light-receiving element is housed and the space in which the second light-receiving element is housed. and are separated by a partition wall.

By doing so, the signal output from the light-receiving element is less likely to be affected by electromagnetic noise, compared to the case where the light-receiving element is not shielded with a conductive material.

(O) A first display unit that displays an image, a control circuit facing the display unit that executes part or all of the functions of the control unit, and a radio wave receiving unit that receives predetermined radio waves. and a second substrate on which the light receiving portion and a GNSS (Global Navigation Satellite System) receiving portion provided adjacent to the light receiving portion are mounted so as to face the first substrate on the side opposite to the display portion. and at least part of the radio wave receiving section is mounted on a surface side of the first substrate facing the second substrate, and the second substrate has at least part of the radio wave receiving section A system in which the existing area is notched is good.

By doing so, it is possible to suppress an increase in the thickness of the system.

(P) The control unit performs control to output sound from a speaker, the speaker is provided adjacent to the GNSS reception unit, and the speaker and the GNSS reception unit are positioned above the radio wave reception unit. It may be a system that is deployed.

By doing so, it is possible to suppress an increase in the thickness of the system.

(Q) The second substrate has a first region and a second region that is vertically shorter than the first region and protrudes above the first region. , and the GNSS receiver is mounted in the second region.

By doing so, it is possible to suppress an increase in the thickness of the system.

(R) a radio wave receiving portion having a substrate on which the light receiving portion is mounted, an antenna portion for receiving a predetermined radio wave, and a processing circuit for processing a signal from the antenna; It is preferable that the system is arranged at a position adjacent to the substrate, and the normal direction of the antenna unit intersects with the normal direction of the substrate.

In this way, it is possible to provide a technique for notifying the user of the presence of the light emitting device while reducing the number of changes from the existing system.

(S) The control unit may be a system that performs control to notify the presence of a light emitting device that emits light of the specific wavelength when a pattern of a predetermined reflector is recognized.

In this way, the existence of the light-emitting device can be notified in a place where there is a high possibility of the existence thereof, and the possibility of false alarm can be reduced.

(T) A program is provided for causing a computer to implement the functions of the control unit of any one of the above systems.

In this way, it is possible to provide a technique for notifying the user of the presence of a light-emitting device that emits light of a specific wavelength.

The inventions shown in (1) to (20) and (A) to (T) above can be combined arbitrarily. For example, a configuration may be adopted in which at least part of the configuration of at least one invention after (2) is added to all or part of the configuration of the invention shown in (1). In particular, the invention shown in (1) may be added with at least a part of the configuration of at least one invention after (2). Also, arbitrary configurations may be extracted from the inventions shown in (1) to (20) and (A) to (T), and the extracted configurations may be combined. The applicant of this application intends to obtain rights to inventions including these configurations. In addition, even if there is a description of "in the case of" or "when", it is not described as a configuration limited to that case or that time. These are examples of better configurations, and we intend to acquire configurations that are not in these cases or occasions. Moreover, the parts described with order are not limited to this order. It also discloses a configuration in which some parts are deleted or the order is changed, and there is an intention to acquire the right.

According to the present invention, it is possible to notify a user of the presence of a light-emitting device that emits light of a specific wavelength.

The effect of the invention of the present application is not limited to this, and the effect produced by the parts of the configuration disclosed in the specification and drawings, etc. is also disclosed, and the configuration that produces the effect is also acquired by divisional application, amendment, etc. have the intention to For example, in this specification, the description of "can be done" is a description that clearly shows the effect, and there are parts showing the effect even if there is no description of "can be done". Moreover, even without such a description, there is an effect that can be grasped by the configuration.

It is a figure which shows the structure of the electronic device which concerns on 1st Embodiment. It is a figure which shows an example of the waveform of the pulsed light which the velocity measuring apparatus which concerns on 1st Embodiment emits. 2 is a rear view of the electronic device according to the first embodiment; FIG. 1 is a cross-sectional view of an electronic device according to a first embodiment; FIG. 1 is a cross-sectional view of an electronic device according to a first embodiment; FIG. FIG. 4 is a diagram illustrating an example of schematic characteristics of a first wavelength selector and a second wavelength selector according to the first embodiment; 1 is a block diagram showing an electrical configuration of an electronic device according to a first embodiment; FIG. 4 is a flow chart showing the operation of the electronic device according to the first embodiment; It is a figure which shows an example of the display screen of the electronic device which concerns on 1st Embodiment. It is a figure which shows an example of the display screen of the electronic device which concerns on 1st Embodiment. It is a figure which shows an example of the display screen of the electronic device which concerns on 1st Embodiment. It is a figure which shows an example of the display screen of the electronic device which concerns on 1st Embodiment. 4 is a flow chart showing the operation of the electronic device according to the first embodiment; It is a figure which shows an example of the display screen of the electronic device which concerns on 1st Embodiment. It is a figure which shows an example of the waveform of the pulsed light which the electronic device which concerns on the modification of 1st Embodiment receives. It is a figure which shows an example of the display screen of the electronic device which concerns on the modification of 1st Embodiment. It is a figure explaining the reason why the number of pulses of the pulsed light which the electronic device which concerns on the modification of 1st Embodiment light-receives decreases. 8 is a flowchart showing the operation of the electronic device according to the modified example of the first embodiment; It is a figure explaining the outline|summary of the system which concerns on 2nd Embodiment. 9 is a flow chart showing the operation of the electronic device according to the second embodiment; It is a figure which shows an example of the display screen of the electronic device which concerns on 2nd Embodiment. FIG. 11 is a block diagram showing the configuration of a system according to a third embodiment; FIG. It is a figure explaining an example of the outline characteristic of the 1st wavelength selection part and the 2nd wavelength selection part concerning a 3rd embodiment. FIG. 11 is a block diagram showing an example of arrangement of light receiving units in a system according to a third embodiment; It is a figure which shows the example of a circuit structure of the light-receiving part based on a modified example. 6A and 6B are six views showing an example of an external configuration of an electronic device; FIG. FIG. 10 is a diagram showing an example of a notification screen displayed when pulsed light is received from a mobile speed measuring device of an electronic device according to another embodiment; FIG. 10 is a diagram showing an example of an animation image displayed in the information display area TA2; FIG. 29 is a diagram illustrating an example of an animation image continued from FIG. 28; FIG. 11 is a diagram showing an example of a notification screen displayed when pulsed light is received from a mobile speed measuring device of an electronic device according to another embodiment; FIG. 10 is a diagram showing an example of an animation image displayed in the information display area TA3; FIG. 32 is a diagram showing an example of an animation image continued from FIG. 31; FIG. 10 is a diagram showing an example of a notification screen when a micro-type speed measuring device of an electronic device is detected in another embodiment. FIG. 10 is a diagram showing an example of an animation image displayed in the information display area TA5; FIG. 35 is a diagram illustrating an example of an animation image continued from FIG. 34; It is a figure which shows the relationship between the received microwave and the alerting|reporting method in other embodiment. It is a figure which shows the relationship between the detection method of a speed measuring device in other embodiment, and an alerting|reporting method. It is a figure which shows an example of the notification screen regarding the collision warning in other embodiment. FIG. 11 is a diagram illustrating an alarm regarding inattentive/drowsy driving in another embodiment; FIG. 11 is a diagram showing an example of a notification screen related to an alarm regarding inattentive/drowsy driving in another embodiment. FIG. 11 is a diagram showing an example of a notification screen related to an alarm regarding inattentive/drowsy driving in another embodiment. It is a figure explaining the GPS warning in other embodiment. It is a table|surface explaining information control by the electronic device in other embodiment. FIG. 10 is a diagram showing a notification screen when pulsed light is received from a mobile speed measuring device of an electronic device according to another embodiment; FIG. 11 is a diagram showing a notification screen when a radar type speed measuring device of an electronic device is detected in another embodiment. It is a figure which shows the alerting|reporting timing and alerting|reporting method in other embodiment. It is a figure which shows the alerting|reporting timing and alerting|reporting method in other embodiment. It is a figure which shows the alerting|reporting timing and alerting|reporting method in other embodiment. It is a perspective view showing an example of an appearance composition of electronic equipment in other embodiments. 6A and 6B are six views showing an example of an external configuration of an electronic device according to another embodiment; FIG. 6A and 6B are six views showing an example of an external configuration of an electronic device according to another embodiment; FIG. It is a back view when removing the cover part of the electronic device in other embodiment. FIG. 11 is an exploded perspective view of an electronic device according to another embodiment; It is a rear view which shows the state which further removed the 2nd housing|casing from the electronic device in other embodiment. It is a perspective view which shows the internal structure of the electronic device in other embodiment. It is a perspective view which shows the internal structure of the electronic device in other embodiment. It is a perspective view which shows the internal structure of the electronic device in other embodiment. It is a figure which shows the photograph of the 2nd board|substrate in other embodiment. It is a figure which shows an example of a structure of the light-receiving part in other embodiment. It is a figure which shows an example of the filter characteristic in other embodiment. It is a figure which shows the structure when the 2nd board|substrate of an electronic device is removed. FIG. 11 is a perspective view showing an external configuration of an electronic device that is another example of another embodiment; FIG. 10 is a perspective view showing an external configuration of an electronic device according to another embodiment; It is a perspective view which shows the internal structure of the electronic device which is other embodiment. It is a perspective view which shows the internal structure of the electronic device which is other embodiment. It is a perspective view which shows the internal structure of the electronic device which is other embodiment. It is a figure explaining the noise reduction method of the electronic device which is other embodiment. It is a figure explaining other embodiments. It is a figure explaining other embodiments. It is a figure explaining other embodiments. It is a figure explaining other embodiments. It is a figure which shows the structure which looked at the electronic device of this embodiment from the diagonally upper right direction of the back side. 1A and 1B are six views showing an example of an external configuration of an electronic device according to an embodiment; FIG. It is a figure which shows the state which removed the 2nd housing|casing from the electronic device of this embodiment. It is a figure which shows the state which removed the lens from the electronic device of this embodiment. It is a figure which shows the state which removed the filter and the shield plate from the electronic device of this embodiment. FIG. 77 is a diagram in which the substrate is removed from FIG. 76; It is a six-sided view showing an example of the configuration of the lens of the present embodiment. FIG. 10 is a diagram for explaining an experiment for confirming that light with a wide angle of incidence can be received by an aspherical lens; It is a figure which shows an example of the electrical structure of the light-receiving part of this embodiment. It is a figure which shows an example of the structure which applied the reflection part to the electronic device of this embodiment. It is a figure which shows an example of the structure which applied the reflection part to the electronic device of this embodiment. It is a figure explaining the light from a collision warning system which the electronic device of this embodiment receives. 4 is a graph showing an example of temporal changes in the level of light received by a light receiving section; It is a figure which shows an example of the electrical structure of the light-receiving part of this embodiment. It is a figure explaining the method of setting of the threshold value of this embodiment. It is a figure which shows an example of the modification of the electrical structure of a light-receiving part. It is a figure which shows the structure which looked at the electronic device of this embodiment from the diagonally upper right direction of the back side. 1A and 1B are six views showing an example of an external configuration of an electronic device according to an embodiment; FIG. 1A and 1B are six views showing an example of an external configuration of an electronic device according to an embodiment; FIG. It is a figure which shows the internal structure of the electronic device of this embodiment. It is a figure which shows the internal structure of the electronic device of this embodiment. It is a figure which shows the internal structure of the electronic device of this embodiment. It is a figure which shows the structure of the external appearance of the electronic device of this embodiment. 1A and 1B are six views showing an example of an external configuration of an electronic device according to an embodiment; FIG. It is a figure which shows the state which removed the 2nd housing|casing from the electronic device of this embodiment. It is a figure which shows the state which removed the condensing lens from the electronic device of this embodiment. It is a figure which shows the state which removed the 1st housing|casing from the electronic device of this embodiment. It is a figure which shows a mode that the electronic device of this embodiment was attached to the dashboard using the 1st attachment member. It is a figure which shows the external appearance structure of the 1st attachment member of this embodiment. It is a figure explaining the attachment method of the electronic device using the 1st attachment member of this embodiment. It is a figure which shows a mode that the electronic device of this embodiment was attached by suspension using the 2nd attachment member. It is a figure which shows the external appearance structure of the 2nd attachment member of this embodiment. It is a figure which shows the external appearance structure of the 2nd attachment member of this embodiment. It is a figure which shows the external appearance structure of the 2nd attachment member of this embodiment. It is a figure explaining the attachment method of the electronic device using the 2nd attachment member of this embodiment. It is a figure which shows a mode that the electronic device of this embodiment was attached by suspension using the attachment member. It is a figure which shows a mode that the electronic device of this embodiment was attached by suspension using the attachment member. It is a figure which shows a mode that the electronic device of this embodiment was attached by suspension using the attachment member. It is a figure which shows the external appearance structure of the attachment member of this embodiment. It is a figure which shows the external appearance structure of the attachment member of this embodiment. It is a figure which shows a mode that the state where the electronic device was attached to the windshield using the attachment member of this embodiment was seen from the side. It is a figure which shows the external appearance structure of the attachment member of this embodiment. It is a six-sided view showing the appearance configuration of the second mounting member of the present embodiment. 6A and 6B are six views showing the external configuration of the mounting member of the present embodiment. FIG. It is a figure explaining operation|movement of the electronic device of this embodiment. It is a figure explaining operation|movement of the electronic device of this embodiment. It is a figure explaining an example of the characteristic of the 1st wavelength selection part and the 2nd wavelength selection part concerning a modification. It is a figure which shows the structure of the light-receiving part based on a modified example. It is a figure which shows the control which the control part which concerns on a modified example performs.

Hereinafter, embodiments will be described in detail with reference to the drawings. The embodiments shown below are examples of embodiments of the present disclosure, and the present disclosure is not limited to these embodiments. In the drawings referred to in this embodiment, the same parts or parts having similar functions are denoted by the same reference numerals or similar reference numerals (reference numerals followed by A, B, etc.). may be omitted. Also, in each drawing referred to in the following description, the scale may be different from the actual scale in order to make each member, each region, etc. recognizable. A case where the system of the present disclosure is applied to a vehicle-mounted system that detects a speed measuring device that emits light of a specific wavelength will be described below.

[1. First Embodiment]
<1-1. Configuration of First Embodiment>
FIG. 1 is a diagram showing the configuration of a system according to the first embodiment. The electronic device 10 is an electronic device to which the system according to the present disclosure is applied. The electronic device 10 is a detector compatible with the optical system and the radar system. The electronic device 10 targets the speed measuring device 30 for detection. The optical method is a method of detecting light emitted by the speed measuring device 30 . The light emitted by the velocity measuring device 30 is pulsed light in this embodiment. More specifically, the light emitted by the speed measuring device 30 is a pulsed laser with a constant pulse width. In this case, the optical method can also be called a laser method. The radar system is a system for receiving predetermined radio waves emitted by a speed measuring device (not shown), which is a radio wave generator. The predetermined radio waves are microwaves in this embodiment.

The electronic device 10 is a substantially rectangular parallelepiped monitor-type device. The electronic device 10 is installed in the vehicle interior of the vehicle 40 . The electronic device 10 is installed on the dashboard 41 using double-sided tape, for example. The housing of the electronic device 10 is the housing 100 . An opening is provided in the front of the housing 100 . The electronic device 10 has a display section 13 for displaying an image at the position of this opening. The housing 100 is made of resin or other material.

The speed measuring device 30 is installed at a vehicle speed control point. The speed measuring device 30 may be of a fixed type or a mobile type, for example, but preferably of a mobile type. Mobile includes, for example, portable and vehicle-mounted systems. In the mobile type, the electronic device 10 can detect the speed measuring device 30 by an optical method even if the positional information of the speed control point is not known. In the example of FIG. 1, the speed measuring device 30 is installed on the sidewalk adjacent to the roadway and measures the speed of the vehicle traveling on the roadway. The speed measuring device 30 measures the distance to a vehicle within a predetermined distance (for example, 70 m), and further measures the speed of the vehicle at a point closer to the own device by a predetermined distance (for example, 20 m).

The speed measuring device 30 includes a speed measuring section 31 , an imaging section 32 and a strobe 33 . The speed measurement unit 31 measures the speed of the vehicle using a laser scanning method. Specifically, when the pulsed light Lout reaches the vehicle 40 and is reflected, the speed measuring unit 31 receives the reflected light Lref. The speed measurement unit 31 measures the distance to the vehicle 40 based on the time taken from when the pulsed light Lout is emitted until when the reflected light Lref is received. The measurement is repeated, and the speed of the vehicle 40 is measured based on the distance traveled by the vehicle 40 per unit time.

The velocity measuring unit 31 emits a pulsed light Lout while changing its direction within a fan-shaped range T having a central angle of θ. θ is, for example, 110 degrees. The range T includes a wider range upstream than the position where the speed measuring device 30 is installed in the traveling direction of the vehicle 40 than the downstream range. The velocity measurement unit 31 changes the emission direction of the pulsed light Lout counterclockwise. For example, the velocity measurement unit 31 emits the pulsed light Lout in the arrow D1 direction, and then emits the pulsed light Lout in the arrow D2 direction. The emission direction of the pulsed light Lout is, for example, substantially horizontal. The speed measurement unit 31 emits pulsed light to, for example, a mirror that rotates at a constant speed. The pulsed light reflected by the mirror and emitted from the light emitting window is the pulsed light Lout.

The pulsed light Lout has energy concentrated at a specific wavelength. The specific wavelength may be a wavelength at which the energy of the light emitted by the light emitting device reaches its peak. The pulsed light Lout desirably has energy at a specific wavelength outside the visible light range, for example. The specific wavelength is preferably a wavelength that is imperceptible to humans. For example, it is preferable to have energy at a specific wavelength outside the visible light range. The specific wavelength, for example, belongs to the infrared region and is 905 nm. However, the specific wavelength is not limited to this, and may be 850 nm, 950 nm, 1900 nm or other wavelengths.

FIG. 2 is a diagram showing an example of the waveform of the pulsed light Lout emitted from the speed measuring device 30. As shown in FIG. The pulsed light Lout is a rectangular wave here. However, the pulsed light Lout may be a sine wave, triangular wave, sawtooth wave, or other waveform. The pulsed light Lout is light in which periods T1 and T2 appear alternately. A period T1 is a period during which a pulsed light with a specific wavelength λout is emitted. In the period T1, the pulsed light Lout alternately changes between high level (H) and low level (L). A period T2 is a period during which light having this pulse waveform is not emitted. As described above, the velocity measuring device 30 emits pulsed light to a mirror that rotates at a constant velocity and emits pulsed light Lout reflected by this mirror. Therefore, the period during which the pulsed light from the mirror is not directed toward the light emission window of the speed measuring device 30 is the period T2.

The imaging unit 32 images the target vehicle when the speed measured by the speed measuring unit 31 is greater than or equal to the threshold. The imaging unit 32 is used to capture an image of a speeding vehicle. The strobe 33 emits light when an image is captured by the imaging section 32 . The image capturing unit 32 preferably captures an image based on light in the infrared region so that the image can be captured even at night. In this case, the strobe 33 should emit light having energy in the infrared region. The speed measuring device 30 transmits data such as the measured speed and captured images to an external computer.

FIG. 3 is a rear view of the electronic device 10. FIG. As shown in FIG. 3 , a first window 101 and a second window 102 are formed on the rear surface of the housing 100 . The first window 101 and the second window 102 are openings for guiding external light into the housing 100 . The first window 101 and the second window 102 are arranged with a predetermined interval in the horizontal direction. The first window 101 and the second window 102 are, for example, rectangular, but may have other shapes. A light receiving unit 12 is provided inside the housing 100 . The light receiving section 12 receives light incident through the first window 101 and the second window 102 .

4 and 5 are cross-sectional views of the electronic device 10. FIG. 4A is a cross-sectional view (cross-sectional view taken along line II in FIG. 3) when the electronic device 10 is cut along the vertical direction at a position including the first window 101. FIG. FIG. 4(b) is a cross-sectional view (cross-sectional view along II-II in FIG. 3) when the electronic device 10 is cut along the vertical direction at a position including the second window 102. FIG. FIG. 5 is a cross-sectional view (cross-sectional view taken along the line III-III in FIG. 3) of the electronic device 10 taken along the horizontal direction at a position including the first window 101 and the second window 102. FIG. 4 is a graph showing an example of schematic characteristics of a wavelength selection section, which will be described later, included in the light receiving section 12. FIG. In FIG. 6, the horizontal axis corresponds to the wavelength, and the vertical axis corresponds to the transmittance.

As shown in FIGS. 4A and 4B, the first window 101 is provided with a visible light cut filter 126 . A visible light cut filter 127 is provided in the second window 102 . Visible light cut filters 126 and 127 block at least part of visible light. Visible light cut filters 126 and 127 transmit light of a specific wavelength λout. Blocking visible light is preferably attenuating at least visible light. The visible light region is, for example, 400-700 nm. Due to the presence of the visible light cut filters 126 and 127, the components housed inside the housing 100 are less visible from the outside. In addition, the presence of the visible light cut filters 126 and 127 can reduce adverse effects caused by the light receiving unit 12 receiving strong visible light such as direct sunlight.

As shown in FIG. 4A, a first wavelength selector 121 and a first light receiving element 122 are provided facing the first window 101 . The first wavelength selection unit 121 selects and transmits light of a specific wavelength λout from the incident light. Selecting wavelengths may mean selecting some wavelengths from a certain wavelength range and not selecting at least some other wavelengths. The first wavelength selector 121 is a band-pass filter here. As indicated by the solid line in FIG. 6, the wavelength region including the specific wavelength λout, here, the light in the wavelength region from wavelength λ1a to wavelength λ1b is transmitted, and the light in other wavelength regions is blocked. Blocking of light means at least attenuating the light, and the amount of attenuation is greater at wavelengths at which light is blocked than at wavelengths at which light is transmitted. The characteristics of the first wavelength selector 121 are determined from the viewpoint of transmitting only light having the same wavelength as the pulsed light from the velocity measuring device 30 as much as possible. The width of the wavelength region from wavelength λ1a to wavelength λ1b is, for example, 20 nm, but it is more desirable to be narrower than this.

In FIG. 6, the transmittance in the frequency range through which light is transmitted is represented as 100%, and the frequency range in which light is cut off is represented as approximately 0%. The wavelength selector desirably exhibits a steep characteristic as exemplified in FIG. 6, but may exhibit a broader characteristic. For example, there may be a wavelength for which the transmittance of both the first wavelength selection section 121 and the second wavelength selection section 123 is not 0%.

The first light receiving element 122 receives the light transmitted by the first wavelength selection section 121 and outputs a first signal corresponding to the first received light amount. The first light receiving element 122 is preferably a photodiode, for example, but may be a phototransistor or other light receiving element. The first light receiving element 122 has sensitivity at least in the infrared region. The first light receiving element 122 includes, for example, a resin mold that transmits infrared light. It is preferable that the first light receiving element 122 does not receive light in a wavelength range of 700 nm or less. The first light receiving element 122 is a so-called lensless type light receiving element that does not have a lens. As a result, the angle at which light is received by the first light receiving element 122 is increased (for example, 120 to 180 degrees), making it possible to receive light in multiple directions. Alternatively, a lens or a mirror may be combined to widen the light acceptance angle of the first light receiving element 122 .

As shown in FIG. 4B, a second wavelength selector 123 and a second light receiving element 124 are provided facing the second window 102 . The second wavelength selection unit 123 is a filter that selects and transmits light in a wavelength range different from the specific wavelength λout from the incident light. The wavelength different from the specific wavelength may be a wavelength different from the wavelength at which the energy of the light emitted by the light emitting device reaches its peak. A wavelength different from the specific wavelength may be a wavelength included in the visible light region. The second wavelength selector 123 is, for example, a band elimination filter. As indicated by the dashed line in FIG. 6, the second wavelength selector 123 cuts off light in a wavelength region including the specific wavelength λout, here from wavelength λ2a to wavelength λ2b, and cuts off light in other wavelength regions. pass through. It is desirable that the wavelength region from the wavelength λ2a to the wavelength λ2b does not include the specific wavelength λout and includes as wide a wavelength region as possible other than the specific wavelength λout. The characteristics of the second wavelength selector 123 are determined from the viewpoint of transmitting only light having a wavelength different from that of the pulsed light Lout from the speed measuring device 30 as much as possible.

The second light receiving element 124 receives the light that has passed through the second wavelength selection section 123 and outputs a second signal corresponding to the second received light amount. The second light receiving element 124 is, for example, a photodiode, but may be a phototransistor or other light receiving element. The second light-receiving element 124 preferably has the same characteristics as the first light-receiving element 122, for example, the same product (eg, model number). This is because when the second light receiving element 124 and the first light receiving element 122 receive the same light, the first signal Sig1 and the second signal Sig2 are the same signal. Like the first light receiving element 122, the second light receiving element 124 is a so-called lensless type sensor that does not have a lens.

As shown in FIG. 5, the housing 100 includes a partition 103 that blocks light between the first light receiving element 122 and the second light receiving element 124 . It is desirable that the distance between the first light receiving element 122 and the second light receiving element 124 is as small as possible. This is to prevent the incidence timing of light from being shifted between the first light receiving element 122 and the second light receiving element 124 . Even in this case, due to the existence of the partition wall 103, the light transmitted through the first wavelength selection section 121 is received by the second light receiving element 124, and the light transmitted through the second wavelength selection section 123 is received by the first light receiving element 122. less likely to be received by

The light receiving section 12 is preferably shielded using a conductive material. This shield is composed of, for example, a metallic case. This reduces the influence of electromagnetic noise on the electronic components inside the housing 100 .

The first window 101, the second window 102, and the light-receiving unit 12 are obliquely forward (for example, forward left) with respect to the traveling direction of the vehicle 40 when the display unit 13 of the electronic device 10 is directed toward the driver's seat of the vehicle 40. may be provided so as to face the This may make it easier for the light receiving section 12 to receive the pulsed light Lout from the speed measuring device 30 .

FIG. 7 is a block diagram showing the electrical configuration of the electronic device 10. As shown in FIG. The control section 11 controls each section of the electronic device 10 . The control unit 11 is, for example, a computer including an arithmetic processing circuit and memory. The arithmetic processing circuit includes, for example, a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or other arithmetic processing circuits. The memory includes, for example, RAM (Random Access Memory) or other volatile memory. The arithmetic processing circuit performs various controls by temporarily reading out data to the memory and performing arithmetic processing.

The light receiving section 12 includes a first wavelength selection section 121 , a first light receiving element 122 , a second wavelength selection section 123 , a second light receiving element 124 and an interface 125 . The first wavelength selection unit 121 selects, for example, a wavelength region from wavelength λ1a to wavelength λ1b from the incident light, and transmits it as light Lin1. The first light receiving element 122 receives the light Lin1 and outputs a first signal Sig1 corresponding to the first received light amount. The first received light amount may indicate the amount of light of the specific wavelength selected and received by the light receiving unit 12 . The first signal Sig1 indicates the amount of received light Lin1. The second wavelength selection unit 123 selects a wavelength region different from the wavelength region from wavelength λ2a to wavelength λ2b and transmits it as light Lin2. The second light receiving element 124 receives the light Lin2 and outputs a second signal Sig2 corresponding to the second amount of received light. The second amount of received light preferably indicates the amount of light of a wavelength different from the specific wavelength selected and received by the light receiving unit 12 . The second signal Sig2 indicates the amount of received light Lin2. The interface 125 processes the first signal Sig1 and the second signal Sig2 and outputs the processed signals to the control unit 11 . The interface 125, for example, converts the first signal Sig1 and the second signal Sig2 into digital format and outputs the digital format.

The display unit 13 displays images. The display unit 13 is, for example, a 3.2-inch color TFT liquid crystal display. However, the display unit 13 may be an organic EL display or other types of display devices. The speaker 14 outputs audio. The microwave receiver 15 includes an antenna and a receiver circuit, and receives microwaves. A GPS (Global Positioning System) receiver 16 includes an antenna and a receiver circuit, and receives signals from GPS satellites. The GPS receiver 16 processes the received signal and outputs position information. The location information includes, for example, latitude information and longitude information, and may also include altitude information. The communication unit 17 communicates with an external device. The communication unit 17 performs wireless communication using, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or other methods.

The storage unit 18 stores data. The storage unit 18 stores, for example, programs for the control unit 11 to perform various controls. The control unit 11 reads the program from the storage unit 18 to the memory and executes it. The storage unit 18 also stores map data indicating a map, data indicating the types and locations of various facilities, data for notifying the presence of notification objects, data for realizing a route guidance function, and the like. Examples of reporting objects include drowsy driving accident points, speed measuring devices (radar system, loop coil system, H system, LH system, phototube system, mobile system, etc.), speed limit switching points, control areas, inspection areas, and parking. Monitoring area, N system, Traffic monitoring system, Intersection monitoring point, Signal ignoring control system, Police station, Accident-prone area, Vehicle target-prone area, Sharp/continuous curve (highway), Junction/merging point (highway), ETC lane advance guidance (highway), service area (highway), parking area (highway), highway oasis (highway), smart interchange (highway), gas station in PA/SA (highway), tunnel ( Highway), highway radio reception area (highway), prefectural border announcement, roadside station, view point parking, etc. The storage unit 18 associates and stores the type information of the notification object, the position information indicating the position thereof, the data of the image (for example, schematic diagram or photograph) to be displayed on the display unit 13, and the audio data. do.

Note that the storage unit 18 may include a storage medium that permanently stores data. The storage unit 18 may include, for example, optical recording media, magnetic recording media, semiconductor recording media, or other recording media.

The operation unit 19 receives user operations. The operation unit 19 includes, for example, a touch sensor, volume control buttons, and work buttons. The touch sensor is provided on the surface of the display unit 13 and detects the position touched by the user. A volume operation button is operated to adjust the volume of the sound output from the speaker 14 . The work button is a button for performing various work.

The sensor unit 20 includes various sensors. The sensor unit 20 includes, for example, a geomagnetic sensor, an acceleration sensor, and an illuminance sensor. A geomagnetic sensor is a sensor that detects geomagnetism to detect which direction the north direction is relative to the traveling direction. The acceleration sensor is a sensor that detects longitudinal, lateral, and vertical acceleration of the vehicle. The illuminance sensor is a sensor that detects illuminance indicating the brightness in the vehicle compartment.

The mounting unit 21 is a mounting unit to which an external storage medium is mounted. The external storage medium is, for example, a memory card. In this case, the mounting portion 21 is a memory card slot. Data stored in the storage unit 18 may be fetched via an external storage medium. As this data, there is update information of information (position information such as longitude and latitude, type information, etc.) of a new notification target (target).

The power supply unit 22 supplies power supplied from the power supply to each unit in the electronic device 10 . Power supply unit 22 includes, for example, a power switch and a DC jack. The DC jack is for connecting a cigar plug cord, and is connected to a cigar socket of the vehicle via the cigar plug cord to receive power supply. The power switch is a switch for turning on or off the power of the electronic device 10 .

The light emitting section 23 emits light in various colors. The light emitting section 23 includes, for example, a light emitting diode.

The cable terminal portion 24 is a terminal to which an external connection cable is connected. For example, the connection cable is a cable that connects the electronic device 10 to an OBD-II connector mounted on a vehicle. The OBD-II connector, also called a failure diagnosis connector, is connected to a vehicle ECU (Engine Control Unit) and outputs various vehicle information.

In addition to the above, the electronic device 10 may have functions that a well-known radar detector has.

<1-2. Operation of First Embodiment>
Next, the operation of this embodiment will be described.
<1-2-1. Notification by optical method>
FIG. 8 is a flowchart showing the operation of the control section 11 of the electronic device 10. As shown in FIG. FIG. 8 shows the operation of detecting the speed measuring device 30 by the optical method. When the electronic device 10 starts operating, the control unit 11 executes processing described below. The timing of starting the operation of the electronic device 10 is not particularly limited.

First, the control unit 11 starts displaying a map screen on the display unit 13 (step S1). The map screen is a screen showing the position of the vehicle on a map. The map displayed on the display unit 13 is specified based on the map data and the positional information from the GPS receiver unit 16 . The vehicle position is specified based on the position information from the GPS receiver 16 . FIG. 9 is a diagram showing an example of a map screen. On the map screen shown in FIG. 9, an icon I1 indicating the position of the vehicle is arranged on the map M. FIG. The map screen displays the address of the current position, the distance to a predetermined notification object (here, "1960 m to H system"), the speed limit, and a photograph of the vicinity of the speed control point. FIG. 10 is a diagram showing another example of the map screen. An icon I1 indicating the position of the vehicle on the map M is also arranged on the map screen shown in FIG. An example of control when the map screen shown in FIG. 10 is displayed will be described below. Note that the icons may be replaced with characters, symbols, graphics, or other objects.

Next, the control unit 11 acquires the first signal Sig1 and the second signal Sig2 from the light receiving unit 12 (step S2). Next, the controller 11 calculates the difference between the first received light amount corresponding to the first signal Sig1 and the second received light amount corresponding to the second signal Sig2 (step S3). Next, the control unit 11 determines whether the calculated difference is equal to or greater than a threshold (step S4). When the difference is less than the threshold, the control unit 11 determines "NO" in step S4 and returns to the process of step S2. In this case, the control unit 11 determines that the speed measuring device 30 is not detected, and does not report the existence of the speed measuring device 30 .

On the other hand, when the calculated difference is equal to or greater than the threshold, the control unit 11 determines "YES" in step S4, and performs notification control (step S5). Notification control is control for notifying the presence of the speed measuring device 30 . The notification control can be said to be control for issuing an alarm to make the user aware of what the speed measuring device is doing. The notification control here is control for notifying the user of the presence of the speed measuring device 30 by the first method. Notification control includes control for displaying a notification screen on the display unit 13, for example.

FIG. 11 is a diagram showing an example of a notification screen. The notification screen shown in FIG. 11 is a screen in which a window W1 is superimposed on the map screen described above. In the window W1, an icon M1 indicating the presence of the speed measuring device 30 and a message indicating the presence of the speed measuring device 30, "You are approaching a speed control point. Please be careful." The icon M1 is an icon that allows the user to recognize that the velocity measuring device 30 is compatible with the optical method. The notification control may include control for outputting the notification sound from the speaker 14 . In this case, the control unit 11 may output a voice message from the speaker 14 saying, "You are approaching a laser speed control point. Please be careful." Notification control may include control other than these, for example, may include control for causing the light emitting unit 23 to emit light. The notification control may be any control that notifies the presence of the speed measuring device 30 in a manner that allows the user to recognize it.

Next, the control unit 11 determines whether or not to end the processing of FIG. 8 (step S6). The process may be terminated by any trigger, for example, when the operation unit 19 is operated to turn off the power of the electronic device 10 or when the route guidance function is stopped. When it is determined as "NO" in step S6, the control section 11 returns to the process of step S2 and repeats the above process. (Step S4). For example, when the difference changes from the threshold value or more to less than the threshold value, the control unit 11 determines "NO" in step S4 and stops the notification control. In this case, the control unit 11 causes the display unit 13 to display the map screen shown in FIG. This is because it means that you have passed the speed control point. When it is determined as "YES" in step S6, the control unit 11 terminates the processing of FIG. 8 (step S7).

Here, the reason why the speed measuring device 30 can be detected by the method described above will be described. As described with reference to FIG. 6, the first wavelength selection unit 121 selects light of a specific wavelength λout (more specifically, a wavelength range from wavelength λ1a to wavelength λ1b) in which the pulsed light Lout has energy, permeate. Therefore, the first signal Sig1 should indicate a large amount of received light during the period when the pulsed light Lout is being received, and should indicate a small amount of received light during other periods. However, the light receiving unit 12 may receive not only the pulsed light Lout intended to be received, but also disturbance light. This disturbance light may be mistaken for pulsed light. Ambient light includes, for example, light that arrives after being periodically blocked by branches and leaves of trees that are shaken by the wind. Other disturbing light includes light from traffic lights, advertisements, and the like that periodically turns on and off, and light from a rotating warning light that rotates at a constant speed. Moreover, the light received by the light-receiving portion also changes depending on the vibration of the light-receiving portion. For example, when the vehicle 40 travels on a place where periodic vibrations occur, such as on a pier, the direction of the light receiving unit 12 (for example, the first light receiving element 122) changes accordingly, and light such as sunlight is In some cases, the light is received as light that is repeatedly turned on and off periodically. Even in such a case, the first signal Sig1 indicates a relatively large amount of received light.

On the other hand, the second wavelength selection unit 123 blocks the light of the specific wavelength λout (the wavelength region from the wavelength λ2a to the wavelength λ2b in this embodiment) in which the pulsed light Lout has energy, and cuts off the light of the other wavelength regions. Allow light to pass through. Therefore, the amount of light received by the second signal Sig2 decreases during the period in which the pulsed light Lout is received. The second light receiving element 124 receives the disturbance light, and such disturbance light generally has a wide wavelength range in which energy is distributed. Therefore, even if the light receiving unit 12 receives disturbance light that is repeatedly turned on and off periodically, the amount of light received by the second light receiving element 124 is considered to be large. Therefore, when the amount of light received by the first signal Sig1 is large and the amount of light received by the second signal Sig2 is small, that is, when the difference in the amount of light received is equal to or greater than the threshold, it can be estimated that the pulsed light Lout has been received. On the other hand, when the amount of light received by the first signal Sig1 is large and the amount of light received by the second signal Sig2 is also large, that is, when the difference in the amount of light received is less than the threshold, the possibility of receiving the pulsed light Lout is low. can be estimated. Therefore, according to the electronic device 10, by receiving light using the first light receiving element 122 and the second light receiving element 124, it is expected that the detection accuracy of the speed measuring device 30 will be improved.

<1-2-2. Notification by radar method>
Further, based on the microwave received by the microwave receiving unit 15, the control unit 11 preferably executes the process of FIG. 13 in parallel with the process of FIG.

First, the control unit 11 acquires a received microwave signal from the microwave receiving unit 15 (step S11). Next, based on the received microwave signal, the control unit 11 performs determination processing for determining whether or not there is a radar type speed measuring device (step S12). In step S12, the control unit 11 may determine whether or not there is a speed control point based on the frequency band of the received microwave. The algorithm for this determination may be, for example, the method described in Patent Document 1 or 2, and the description thereof will be omitted.

Next, the control unit 11 determines whether or not the speed measuring device is detected based on the result of the determination process (step S13). When it determines with "YES" at step S13, the control part 11 performs alerting|reporting control (step S14). The notification control here is control for notifying the user of the presence of the speed measuring device by the third method. Notification control includes control for displaying a notification screen on the display unit 13, for example. FIG. 14 is a diagram showing an example of a notification screen. The notification screen shown in FIG. 14 is a screen in which a window W2 is superimposed on the map screen described above. In the window W2, an icon M2 indicating the presence of the speed measuring device 30 and a message indicating the presence of the speed measuring device, "You are approaching a speed control point. Please be careful." are arranged. The icon M2 is an icon that allows the user to recognize that the speed control device is compatible with the radar system. That is, the icon M2 is different from the icon M1. Note that the notification control may include control for outputting the notification sound from the speaker 14 . In this case, the control unit 11 may output a voice saying "You are approaching a radar speed control point. Please be careful." The information control information may be control other than these, and may include, for example, control for causing the light emitting unit 23 to emit light. Also in this case, the notification control may be any control that notifies the presence of the speed measuring device in a manner that allows the user to recognize it.

<1-3. Modification of First Embodiment>
The control unit 11 may further perform the following controls.
<1-3-1. Notification according to the number of pulses>
When the speed measuring device 30 emits pulsed light, referring to the number of pulses is also useful for detecting the speed measuring device 30 . FIG. 15 is a diagram showing an example of the waveform of the pulsed light Lout received by the electronic device 10. As shown in FIG. 15A shows a case where the distance between the electronic device 10 and the speed measuring device 30 is relatively large, and FIG. 15B shows a case where the distance between the electronic device 10 and the speed measuring device 30 is relatively small. As shown in FIG. 15A, when the distance between the speed measuring device 30 and the electronic device 10 is relatively large, the pulsed light Lout traveling in the direction of the electronic device 10 can be received, but the speed measuring device 30 on the road A pulsed light in a direction propagating only in a nearby position (for example, just beside the velocity measuring device 30) is not received. Therefore, the light receiving period Rx1 of the pulsed light Lout becomes relatively shorter than the non-light receiving period Rx2. As shown in FIG. 15(b), when the distance between the speed measuring device 30 and the electronic device 10 is relatively small, the pulsed light Lout traveling in the direction of the electronic device 10 can be received, and the speed measuring device 30 It can also receive pulsed light in a direction propagating only in a position close to . Therefore, the light receiving period Rx1 of the pulsed light Lout becomes relatively longer than the non-light receiving period Rx2. It is also conceivable that the number of pulses decreases immediately after the vehicle 40 passes the position of the speed measuring device 30 as well. Note that in practice, the relationship Rx1<<Rx2 may be satisfied.

Therefore, the control unit 11 may perform notification control according to the number of pulses. The control unit 11 may change the notification level, for example, according to the number of pulses included in the light receiving period of the pulsed light. The notification level is an indicator of how important the contents of the notification are to the user, and in this embodiment, may be called an alarm level. The control unit 11 specifies the number of pulses based on at least the amount of light received by the first light receiving element 122 . For example, the controller 11 raises the notification level during a period in which the number of pulses is equal to or greater than the threshold value or during a period in which the number of pulses is increasing because the vehicle is approaching the speed measuring device 30 . Control unit 11 lowers the notification level during the period when the number of pulses is less than the threshold value or when the number of pulse widths is decreasing, because the vehicle is far from speed measuring device 30 or moves away. The control unit 11 varies the notification method according to the notification level. For example, the control unit 11 may change the message displayed on the display unit 13, change the notification sound output from the speaker 14, or change the emission color of the light emitting unit 23 according to the notification level.

Also, the control unit 11 may estimate the distance from the number of pulse widths and notify according to the distance. For example, as shown in FIG. 16, the control unit 11 may estimate the position of the speed measuring device 30 from the number of pulse widths and display it on a map. In this example, icon P indicates the position of speed measuring device 30 . As described above, the control unit 11 can notify the user according to the positional relationship between the light receiving unit 12 and the speed measuring device 30 .

By the way, as shown in FIG. 17, when there is another vehicle in front of the vehicle 40, there is a possibility that the pulsed light Lout may be partially or completely blocked by the vehicle C traveling ahead. In this case, it may not be possible to accurately identify the positional relationship by referring to the number of pulses. Therefore, the control unit 11 detects the presence or absence of another vehicle C within a predetermined range from the vehicle 40, here, ahead. The control unit 11 preferably performs notification control according to the number of pulses when another vehicle C does not exist, and stops the notification control when the vehicle C exists. Stopping the notification control according to the number of pulses means not to change the content of the control related to notification according to the number of pulses. Further, the electronic device 10 may stop notification control according to the number of pulses when the inter-vehicle distance is less than the threshold, and may perform this notification control when the distance is equal to or greater than the threshold. Although the method of detecting the vehicle C is not particularly limited, there is a method using the vehicle-mounted camera 50 . The vehicle-mounted camera 50 is a camera used for a drive recorder, for example, and captures an image of the front of the vehicle 40 here.

FIG. 18 is a flow chart showing the operation of the control section 11 of the electronic device 10 in this case. The control unit 11 acquires a captured image from the vehicle-mounted camera 50 via the communication unit 17 (step S21). Next, the control unit 11 analyzes the captured image (step S22). Algorithms for analysis of captured images are not limited, but there is, for example, a pattern matching method. Then, the control unit 11 determines whether or not there is a vehicle ahead (step S23). When it is determined as "NO" in step S23, the control unit 11 determines to perform notification control according to the number of pulses (step S24). In this case, the control unit 11 performs processing such as rewriting the flag to a value indicating that control is to be performed according to the number of pulses. When it is determined as "YES" in step S23, the control unit 11 determines to stop the notification control according to the number of pulses (step S25). In this case, the control unit 11 performs processing such as rewriting a predetermined flag to a value indicating that control according to the number of pulses is not performed. Although the vehicle in front of the vehicle 40 is detected here, the vehicle behind the vehicle 40 may be detected. Note that the electronic device 10 may incorporate the vehicle-mounted camera 50 . As described above, the possibility of erroneously recognizing the positional relationship between the light receiving unit 12 and the speed measuring device 30 due to the presence of another vehicle C is reduced.

<1-3-2. Control According to Pulse Width or Pulse Interval>
When speed measuring device 30 emits pulsed light, referring to the pulse width or pulse interval is also useful for detecting speed measuring device 30 . The velocity measuring device 30 emits pulsed light of a specific wavelength with a predetermined duty ratio. Moreover, from the viewpoint of safety, the duty ratio of the pulsed light is set to less than a predetermined value. Therefore, the controller 11 may determine whether or not the velocity measuring device 30 is present based on a predetermined pulse width or pulse interval and the pulse width or pulse interval of the received light. For example, the control unit 11 determines that the speed measuring device 30 is present when it is within a certain range from the reference pulse width or pulse interval, but otherwise determines that it is not present. The control unit 11 specifies the pulse width or the pulse interval based on at least the amount of light received by the first light receiving element 122 . As described above, the control unit 11 can reduce the number of reports misrecognizing disturbance light as light from the light emitting device.

<1-3-3. Control According to Intensity of Pulsed Light>
Referencing the intensity of the pulsed light of the received light is also useful in detecting the speed measuring device 30 . The intensity of the pulsed light increases as the vehicle 40 approaches the speed measuring device 30, and the distance decreases as the vehicle 40 moves away. Therefore, the control unit 11 may change the notification level according to the amount of pulsed light received by the first light receiving element 122 . For example, the control unit 11 may raise the notification level when the intensity of the pulsed light is increasing, and lower the notification level when the intensity is decreasing. Further, when the amount of received pulsed light is less than the threshold value, the control unit 11 may determine that the velocity measuring device 30 does not exist. As described above, the control unit 11 can notify the user according to the positional relationship between the light receiving unit 12 and the speed measuring device 30 .

Ambient light may also include light used in sensors for detecting other vehicles, such as inter-vehicle distance sensors. In such light, light having the same frequency as that of the pulsed light Lout may be used. Even in such a case, by referring to the pulse interval of the light received by the electronic device 10 or the intensity of the pulsed light, it can be expected that the possibility of erroneous alarm will be reduced.

<1-3-4. Notification of presence/absence of imaging>
After performing notification control, the control unit 11 may perform control to notify that an image has been captured or not depending on whether or not predetermined light has been detected. When an image is captured by the imaging unit 32, the strobe 33 emits light. Therefore, after performing the notification control, the control unit 11 may further notify that the image has been captured when the light from the strobe 33 is detected. Alternatively, if the light from the strobe 33 is not detected after performing the notification control, the control unit 11 may notify that the image has not been captured. Thereby, the user can grasp whether the image of the vehicle 40 has been captured. Note that the light from the strobe 33 may be received using the light receiving section 12 or another light receiving section.

[2. Second Embodiment]
In this embodiment, the electronic device 10 has the function of notifying the presence of the velocity measuring device 30 even when it does not receive pulsed light and microwaves. The electronic device of this embodiment may or may not have some or all of the functions of the first embodiment described above.

<2-1. Configuration of Second Embodiment>
FIG. 19 is a diagram for explaining the outline of the system of this embodiment. As shown in FIG. 19, there are various types of roads. For example, on the road Ar1, which is called a green belt and is also used for commuting to school, it is particularly important to observe the speed limit of the vehicle 40, and the possibility of installing the speed measuring device 30 is limited to other types of roads. It is believed to be higher than Ar2. Therefore, the control unit 11 should notify the presence of the speed measuring device 30 when the electronic device 10 is located on a predetermined type of road.

<2-2. Operation of Second Embodiment>
FIG. 20 is a flowchart showing the operation of the control section 11 of the electronic device 10. As shown in FIG. The control unit 11 acquires position information from the GPS receiving unit 16 (step S31). Next, the control unit 11 determines whether or not the current position indicated by the position information is within a predetermined area (step S32). Here, the control unit 11 determines whether the vehicle 40 is on the green belt based on the current position and the data stored in the storage unit 18 . When the control unit 11 determines "YES" in step S32, it performs notification control (step S33). Notification control includes control for displaying a notification screen on the display unit 13, for example.

FIG. 21 is a diagram showing an example of a notification screen. The notification screen shown in FIG. 21 is a screen in which a window W3 is superimposed on the map screen described above. In the window W3, an icon M3 indicating the presence of the speed measuring device 30 and a message indicating the presence of the speed measuring device, "This is in the warning area for speed control," are arranged. The icon M3 is an icon that allows the user to recognize that the speed control point is being carried out based on the location information. That is, for example, the icon M3 is different from the icons M1 and M2. Note that the notification control may include control for outputting the notification sound from the speaker 14 . In this case, the control unit 11 may output a voice saying "You are in a warning area for speed control" from the speaker 14. FIG. Notification control may include control other than these, for example, may include control for causing the light emitting unit 23 to emit light. Note that the predetermined area is not limited to the green belt, and may be a one-way road or other type of road.

In this way, the presence of the light emitting device can be notified based on the position information, so that the presence can be notified without receiving the pulsed light from the speed measuring device 30 .

[3. Third Embodiment]
In this embodiment, the electronic device 10 has a plurality of light receiving units that receive pulsed light.

FIG. 22 is a block diagram showing the electrical configuration of the electronic device 10. As shown in FIG. In this example, the electronic device 10 includes three light receiving units 12A, 12B, and 12C. Each configuration of the light receiving sections 12A, 12B, and 12C may be the same as that of the light receiving section 12 except for the characteristics of the wavelength selection section. 22, illustration of the display section 13 to the cable terminal section 24 described in FIG. 6 is omitted.

FIG. 23 is a diagram showing the characteristics of the first wavelength selection section 121 and the second wavelength selection section 123 of the light receiving sections 12A, 12B, 12C of this embodiment. 23A corresponds to the light receiving section 12A, FIG. 23B corresponds to the light receiving section 12B, and FIG. 23C corresponds to the light receiving section 12C. As shown in FIGS. 23A to 23C, the light receiving sections 12A, 12B, and 12C each have different wavelengths of pulsed light to be received. As indicated by the solid line in FIG. 23A, the first wavelength selection section 121 of the light receiving section 12A transmits light in a wavelength range including the specific wavelength λout1, here from wavelength λ11a to wavelength λ11b. block light in a wavelength range different from the The second wavelength selector 123 cuts off light in a wavelength region including the specific wavelength λout1, here from a wavelength λ21a to a wavelength λ21b, as indicated by a dashed line in FIG. Allows light to pass through the area. As indicated by the solid line in FIG. 23B, the first wavelength selection section 121 of the light receiving section 12B transmits light in a wavelength region including the specific wavelength λout2, here from wavelength λ12a to wavelength λ12b. block light in a wavelength range different from the As indicated by the broken line in FIG. 23(b), the second wavelength selector 123 cuts off light in a wavelength range including the specific wavelength λout2, here from a wavelength λ22a to a wavelength λ22b. Allows light to pass through the area. As indicated by the solid line in FIG. 23(c), the first wavelength selection section 121 of the light receiving section 12C transmits light in a wavelength region including the specific wavelength λout3, here from wavelength λ13a to wavelength λ13b. block light in a wavelength range different from the The second wavelength selection unit 123 blocks light in a wavelength region including the specific wavelength λout3, here from wavelength λ23a to wavelength λ23b, as indicated by a dashed line in FIG. Allows light to pass through the area. λout1, out2, and out3 are, for example, 850 nm, 905 nm, and 950 nm, but are not limited to these, and may be 1900 nm.

When the control unit 11 detects the speed measuring device 30 based on the first signal Sig1 and the second signal Sig2 from any one of the light receiving units 12A, 12B, and 12C, the control unit 11 notifies that the speed measuring device 30 is present. . According to this embodiment, even if there are a plurality of speed measuring devices 30 with different wavelengths of light emitted by the electronic device 10 or if the wavelength of light emitted by the speed measuring devices 30 is changed, the presence of the speed measuring devices 30 can be notified.

The characteristics of the plurality of light receiving portions 12 may be made the same. In this case, the light receiving units 12A, 12B, and 12C may be provided at different positions on the vehicle 40, as shown in FIG. Here, the light receiving portion 12A is provided in the left front portion, the light receiving portion 12B is provided in the central front portion, and the light receiving portion 12C is provided in the right front portion. This makes it possible to estimate the direction of arrival of the laser based on the light receiving timing of the laser at the light receiving units 12A, 12B, and 12C. For example, if the light comes from the left front, the light receiving timing of the light receiving section 12A is relatively early, and if it comes from the right front, the light receiving timing of the light receiving section 12C is relatively early. Furthermore, the control unit 11 may notify the user of the direction from which the pulsed light arrived.

In addition, the velocity measurement unit 31 emits pulsed light to a mirror that rotates at a constant velocity, and emits pulsed light Lout reflected by this mirror. For this reason, the timing of receiving the pulsed light Lout at each of the light receiving units 12A, 12B, and 12C includes, for example, the rotational speed of the mirror, the positions of the light receiving units 12A, 12B, and 12C, and the speed measurement of the light receiving units 12A, 12B, and 12C. A difference appears depending on the distance from the device 30 . Therefore, the control unit 11 may detect the speed measuring device 30 based on the light receiving timing of the pulsed light Lout in the light receiving units 12A, 12B, and 12C.

Light-receiving portions 12A, 12B, and 12C may receive light in different directions. For example, the directions of the light receiving elements may be different by 20 degrees between the light receiving sections 12A, 12B, and 12C. As a result, there is a possibility that deterioration in detection accuracy due to the installation position of the speed measuring device 30 can be suppressed. In addition, in this embodiment, the number of light receiving portions may be two or four or more.

[4. Configuration of light receiving unit 12]
Next, a configuration example of the light receiving unit 12 applicable to each of the above-described embodiments will be described.
FIG. 25 is a diagram showing a circuit configuration example of the light receiving unit 12. As shown in FIG. The first light receiving element 122 is the photodiode PD1 here. Light passing through the first wavelength selector 121 is incident on the light receiving surface of the photodiode PD1. The cathode of PD1 is connected to the power supply line on the high potential side, and the anode is connected to one end of the resistor R1. The other end of resistor R1 is grounded. The input terminal of the output control circuit A1 is commonly connected to the anode of the photodiode PD1 and one end of the resistor R1. The output terminal of the output control circuit A1 is connected to the negative input terminal of the differential amplifier AMP. The output control circuit A1 is, for example, an amplifier that adjusts the signal level. The second light receiving element 124 is the photodiode PD2 here. Light passing through the second wavelength selector 123 is incident on the light receiving surface of the photodiode PD2. The cathode of the photodiode PD2 is connected to the power line on the high potential side, and the anode is connected to one end of the resistor R2. The other end of resistor R2 is grounded. The input end of the output control circuit A2 is commonly connected to the anode of the photodiode PD2 and one end of the resistor R2. The output terminal of the output control circuit A2 is connected to the positive input terminal of the differential amplifier AMP. The output control circuit A2 is, for example, an amplifier that adjusts the signal level. A signal corresponding to the difference between the amounts of light received by the photodiodes PD1 and PD2 is output from the output end of the differential amplifier AMP. The control unit 11 detects the speed measuring device 30 based on this difference. The controller 11 may detect the speed measuring device 30 based on the signal amplified by the differential amplifier AMP.

[5. Appearance Configuration of Electronic Device 10]
26A and 26B are six views showing an example of the external configuration of the electronic device 10. FIG. In this example, a display unit 13 , a light emitting unit 23 and an illuminance sensor 201 of the sensor unit 20 are provided on the front surface of the housing of the electronic device 10 . A speaker 14 is provided to output sound from the upper end surface of the housing 100 . A mounting portion 21 (that is, an SD card slot) for mounting an SD card (registered trademark) is provided on the right end face of the housing 100 . A light receiving section 12 is provided in the upper right portion of the rear surface of the housing 100 . A power switch 221 and a DC jack 222 of the power supply unit 22 are provided at the lower left portion of the rear surface of the housing 100 . An area 104 is an area where the model name and serial number are written.

[6. Other embodiment of notification control performed by electronic device 10]
Next, another embodiment of information notification control performed by the electronic device 10 will be described. In the following notification control, the above-described notification control may be appropriately combined.
<6-1. Notification Regarding Pulsed Light Lout (Fixed Type)>
The control unit 11 performs first notification control to notify the existence of the fixed speed measuring device 30 . FIG. 27 is a diagram showing an example of a notification screen displayed when the electronic device 10 receives the pulsed light Lout from the fixed speed measuring device 30. As shown in FIG. As shown in FIG. 27, this notification screen is a screen in which an icon I11 indicating the position of the vehicle 40 and information display areas TA1, TA2, TB1 and TB2 are superimposed on a map M11. The information display areas TA1 and TA2 are displayed when the pulsed light Lout is received. The information display area TA1 is arranged in the lower right part of the display screen. Information display area TA1 displays the attributes of speed measuring device 30 and the state of vehicle 40 . The information display area TA1 displays, as attributes of the speed measuring device 30, a character string TA11 of "laser", which means that the speed measuring device 30 corresponds to the optical system, and an icon TA12 imitating the speed measuring device 30. The information display area TA1 further displays a character string TA13 (here, 60 km/h) indicating the current speed of the vehicle 40 as the state of the vehicle 40 . In this way, the electronic device 10 can allow the user to recognize at least one of the attributes of the speed measuring device 30 and the state of the vehicle 40 . The attributes of the speed measuring device may be other attributes such as the estimated distance from the vehicle 40 . Information display area TA1 is good to display information level, when information level can be specified. The state of the vehicle 40 may indicate other running states such as the number of engine revolutions in addition to the speed.

The information display area TA2 is arranged in the lower left part of the display screen. The information display area TA2 displays an animation image including an image simulating the speed measuring device 30 . An animation image is an image that gives the viewer the impression that the image is moving by displaying a plurality of still images (frames) that are sequentially switched at predetermined time intervals. . In this way, the electronic device 10 can make it easier for the user to recognize the presence of the speed measuring device 30 that the vehicle 40 is approaching. The information display area TB1 is arranged in the upper right part of the display screen and displays the address of the current position. The information display area TB2 is arranged in the upper left part of the display screen and displays the current time. It is preferable that the control unit 11 notifies by a predetermined sound in addition to the notification by the display.

28 and 29 are diagrams showing examples of animation images displayed in the information display area TA2. In FIGS. 28 and 29, the images of each frame are displayed in the order indicated by the arrows. After the image of the rightmost frame in the bottom row of FIG. 28 is displayed, the image of the leftmost frame in the top row of FIG. 29 is displayed next. When the image of the rightmost frame in the bottom row of FIG. 29 is displayed, the image of the leftmost frame in the top row of FIG. 28 is displayed again. As shown in FIG. 28, the animation images include an image TA21 showing a roadside, an image TA22 imitating a speed measuring device, and an image TA23 visually representing an area irradiated with pulsed light emitted from the speed measuring device. including. As shown in FIGS. 28 and 29, in the animation images, the speed measuring device approaches the speed measuring device over time, and after the closest approach, the speed measuring device is viewed from a position far away from the speed measuring device. The image shown (see frame enclosed by dashed line) is displayed. Then, in the animation image, the appearance of approaching the speed measuring device as time elapses is displayed again. The control unit 11 displays an animation in which the image of each frame is displayed in the order described above during the period in which the pulsed light Lout is received. When the presence of the optical speed measuring device 30 is no longer detected, the control unit 11 stops the notification immediately or after a predetermined time. This predetermined time may be, for example, 3 seconds. The first frame in the animation image may be an image showing how the speed-measuring device is viewed from a position furthest away from the speed-measuring device (see the frame surrounded by a dashed line).

<6-2. Notification Regarding Pulsed Light Lout (Mobile Type)>
The control unit 11 performs second notification control to notify the presence of the mobile speed measuring device 30 . The second notification control is notification control different from the first notification control. FIG. 30 is a diagram showing an example of a notification screen displayed when the electronic device 10 receives the pulsed light Lout from the mobile speed measuring device 30. As shown in FIG. As shown in FIG. 30, this notification screen is a screen in which an icon I11 indicating the position of the vehicle 40 and information display areas TA1, TA3, TB1 and TB2 are superimposed on a map M11. The information display areas TA1, TB1, TB2 are the same as the information display areas TA1, TB1, TB2 described with reference to FIG. The information display area TA3 is displayed when the pulsed light Lout is received. The information display area TA3 is arranged in the lower left part of the display screen. Information display area TA1 displays the attributes of speed measuring device 30 and the state of vehicle 40 . The information display area TA3 displays an animation image including an image simulating the speed measuring device 30 . It is preferable that the control unit 11 notifies by a predetermined sound in addition to the notification by the display. Furthermore, an icon indicating the position of the speed measuring device 30 may be arranged on the map M11.

31 and 32 are diagrams showing examples of animation images displayed in the information display area TA3. In FIGS. 31 and 32, the images of each frame are displayed in the order indicated by the arrows. After the image of the rightmost frame in the bottom row of FIG. 31 is displayed, the image of the leftmost frame in the top row of FIG. 32 is displayed next. When the image of the rightmost frame in the bottom row of FIG. 31 is displayed, the image of the leftmost frame in the top row of FIG. 32 is displayed again. As shown in FIG. 31, the animation image divides the image area into left and right using oblique lines. , and a target image TA33 surrounding it is arranged, and in the area on the right side, an image T34 showing the periphery of the road, an image TA35 imitating a speed measuring device, and an image TA35 are targeted and surrounded by a target It is an image in which the image TA36 is arranged. As shown in FIGS. 31 and 32, in the animation image, as time elapses, the target images TA33 and TA36 repeatedly expand and contract, and their sizes change periodically as they approach the velocity measuring device. After closest approach to the speed-measuring device, an image is displayed showing how the speed-measuring device is viewed from a position far away from the speed-measuring device. Then, the appearance of approaching the speed measuring device as time elapses is displayed again. During the period in which the pulsed light Lout is received, an animation is displayed in which the images of each frame are displayed in the order described above. When the presence of the optical speed measuring device 30 is no longer detected, the control unit 11 stops the notification immediately or after a predetermined time. This predetermined period of time is preferably 3 seconds. The first frame in the animation image may be an image showing how the speed measuring device is viewed from the farthest position from the speed measuring device.

<6-3. Notification of Radar System>
The control unit 11 performs third notification control for notifying the existence of the radar-type speed measuring device in response to receiving the microwave. FIG. 33 is a diagram showing an example of a notification screen when electronic device 10 receives light from a radar type speed measuring device. As shown in FIG. 33, this notification screen includes a map M11, an icon I11 indicating the position of the vehicle 40, an icon I12 indicating the installation position of the radar type speed measuring device, information display areas TA4, TA5, TB1, This is a screen in which TB2 is superimposed. The information display areas TB1 and TB2 are the same as the information display areas TB1 and TB2 described with reference to FIG. The information display area TA4 displays the attributes of the speed measuring device and the state of the vehicle 40. FIG. In the information display area TA4, as the attribute of the speed measuring device, a character string of "Radar", which means that it corresponds to the radar system, and "Lv.5", which indicates the notification level according to the strength of the radio wave from the speed measuring device. TA41 and an icon TA42 indicating that it is a radar-type speed measuring device are displayed. The information display area TA4 displays a character string TA43 (here, 88 km/h) indicating the current speed of the vehicle 40 as the state of the vehicle 40 . The information display area TA5 is arranged in the lower left part of the display screen. The information display area TA5 displays an animation image including an image imitating a speed measuring device. It is preferable that the control unit 11 notifies by a predetermined sound in addition to the notification by the display.

34 and 35 are diagrams showing examples of animation images displayed in the information display area T5 of FIG. In FIGS. 34 and 35, the images of each frame are displayed in the order indicated by the arrows. After the image of the rightmost frame in the bottom row of FIG. 34 is displayed, the image of the leftmost frame in the top row of FIG. 35 is displayed next. When the image of the rightmost frame on the bottom row in FIG. 35 is displayed, the image of the leftmost frame on the top row in FIG. 34 is displayed again. As shown in FIGS. 34 and 35, the animation image includes an image TA51 showing a roadside, an image TA52 simulating a speed measuring device, and an annular image TA53 simulating microwaves emitted from the speed measuring device. . As shown in FIGS. 34 and 35, the animation image approaches the velocity measuring device over time, and furthermore, the image TA53 repeatedly expands and contracts to change its size periodically. It is an image approaching in the direction of . In the animation image, after the vehicle comes closest to the speed measuring device, an image showing the speed measuring device viewed from a position far away from the speed control device is displayed (see the frame surrounded by the dashed line). Then, in the animation image, the appearance of approaching the speed control device as time elapses is displayed again. During the detection of the radar-type speed measuring device, an animation is displayed in which the images of each frame are displayed in the order described above. When the control unit 11 stops detecting the presence of the radar type speed measuring device, the control unit 11 stops the notification immediately or after a predetermined time. This predetermined period of time is preferably 3 seconds. Also, the period from when the presence of the speed measuring device is no longer detected to when the notification is stopped may be the same between the optical system and the radar system, but may be different. The first frame in the animation image may be an image showing how the speed-measuring device is viewed from a position furthest away from the speed-measuring device (see the frame surrounded by a dashed line).

FIG. 36 is a diagram showing the relationship between received microwaves (shown as "radar waves" in FIG. 36) and notification methods. The control unit 11 identifies the received radar wave and varies notification control according to the identification result. As shown in FIG. 36( a ), the radar waves include a stealth wave that emits radio waves only at the moment when a predetermined stealth control device measures, a normal radar wave, a new radar wave corresponding to the K band and the X band, and a canceling wave. I have an announcement. When you pass through a place with an automatic door that emits radio waves and gives a false alarm, the GPS location information is automatically registered. This is a function to cancel the notification. As shown in FIG. 36(a), the control unit 11 changes the light emission color of the light emitting unit 23 according to the notification level. Further, as shown in FIG. 36B, the control unit 11 changes the notification sound (for example, electronic sound) emitted from the speaker 14 according to the distance between the electronic device 10 and the microwave generation source.

<6-4. Notification Regarding Speed Measuring Devices of Other Methods>
In addition to this, when a speed measuring device is detected, the control section 11 displays an information display area corresponding to the detection method in the lower right portion of the notification screen. As shown in FIG. 37(a), in the case of the LH system, an information display area TA6 is displayed. As shown in FIG. 37(b), in the case of the loop coil, an information display area TA7 is displayed. The control unit 11 may display animation images for other speed measurement methods, but may not display animation images for some or all of the methods.

<6-5. Notification of Collision Warning>
As shown in FIG. 39(a), the electronic device 10 cooperates with the sensor device 90 to issue a collision warning. The collision warning is an example of notification according to the positional relationship between the vehicle 40 and the other vehicle, and is a function to warn that the vehicle may collide with the other vehicle. The sensor device 90 has the function of a vehicle-to-vehicle sensor that detects the distance to another vehicle that exists ahead. The vehicle-to-vehicle sensor detects the vehicle-to-vehicle distance by an infrared method, and outputs the detected vehicle-to-vehicle distance to the electronic device 10 . The sensor device 90 and the electronic device 10 are connected via wired or wireless communication. The control unit 11 performs fourth notification control according to the positional relationship between the vehicle 40 and other vehicles. The positional relationship is specified here based on the vehicle-to-vehicle distance. The fourth notification control is control for performing notification regarding a collision warning.

FIG. 38 is a diagram showing an example of a notification screen regarding a collision warning. FIG. 38(a) is a screen relating to a collision warning, and is a screen for warning when approaching a stopped preceding vehicle. In this screen, an icon I11 indicating the position of the vehicle 40, an information display area TC11, and an information display area TC12 indicating the current speed are displayed on the map M11. FIG. 38(b) is a screen relating to a start warning, and is a screen for warning when the preceding vehicle has started and the vehicle 40 has stopped. on this screen. An icon I11 indicating the position of the vehicle 40, an information display area TC21, and an information display area TC22 indicating the current speed are displayed on the map M11. FIG. 38(c) is a screen relating to the too close warning, and is a screen for warning when the distance between the vehicle 40 and the preceding vehicle becomes less than the threshold value while the vehicle is running. In this screen, an icon I11 indicating the position of the vehicle 40, an information display area TC31, and an information display area TC32 indicating the current speed are displayed on the map M11. In addition to the screen display described above, the control unit 11 may notify the collision warning by sound. The notification time may be, for example, 5 seconds, but may be any other time. As shown in FIG. 38(d), the control unit 11 may change the sound according to the content of the notification.

<6-6. Notification of warning for inattentive/drowsy driving>
The control unit 11 performs fifth notification control to notify the state of the occupant of the vehicle 40 based on the image of the camera that captures the vehicle interior of the vehicle 40 . The occupant is a person riding in the vehicle 40, and is preferably the driver, but may be another occupant. As shown in FIG. 39( a ), the electronic device 10 cooperates with the camera 70 to issue a warning regarding inattentive driving and drowsy driving. Camera 70 is a camera that captures an image of the interior of the vehicle. The camera 70 detects the state of the user based on the captured image, and outputs information according to the state to the electronic device 10 . The camera 70 and the electronic device 10 are connected via wired or wireless communication. Camera 70 captures at least the user's face. The camera 70 detects the direction of the user's face and the direction of the line of sight, and notifies information according to the detection result. installed. Camera 70 may be mounted on rearview mirror 43, or dashboard 41, or elsewhere.

As shown in FIG. 39(b), the control unit 11 issues an inattentive gaze warning when the user's face turns sideways by a predetermined angle from the front. FIG. 40(a) is an example of a notification screen for warning of inattentiveness. In this screen, an icon I11 indicating the position of the vehicle 40, an information display area TD11, and an information display area TD12 indicating the current speed are displayed on the map M11. FIG. 39(c) is an example of a screen relating to caution against falling asleep. When both eyes are closed for about 1 second or more, the control unit 11 displays a notification screen warning about falling asleep while driving, as shown in FIG. 40(b). . In this screen, an icon I11 indicating the position of the vehicle 40, an information display area TD21, and an information display area TD22 indicating the current speed are displayed on the map M11. If you close both eyes for more than about 3 seconds, As shown in FIGS. 39(c) and 40(c), the control unit 11 changes the background color to display a notification screen warning about drowsy driving. In this screen, an icon I11 indicating the position of the vehicle 40, an information display area TD31, and an information display area TD32 indicating the current speed are displayed on the map M11. In addition to the above-described screen display, the control unit 11 notifies the driver of the inattentiveness/drowsy driving by sound. As shown in FIGS. 39(c) and 41, the control unit 11 may change the sound related to the warning according to at least one of the length of time the eyes are closed and the number of warnings issued.

<6-7. GPS warning>
Next, GPS warnings will be described. The GPS warning is control to issue a notification when the position measured by the GPS receiver 16 has a predetermined positional relationship with the object to be notified. The predetermined relationship may be that the vehicle and the notification object have approached to a predetermined distance. GPS warnings are described in <6-2. Notification regarding pulsed light Lout (mobile type)> may be included. FIG. 42 is a diagram showing a GPS warning. There are various notification methods depending on the setting. When the alarm 1000m switch (initial value) is set, the control unit 11 may display the alarm screen from the standby screen when the point is 1 km before the notification object. When the alarm 500 m switching is set, the control unit 11 may display the alarm screen from the standby screen when the point of time 500 before the notification object is reached. If the standby screen is set to be fixed, the control unit 11 may display the standby screen regardless of the distance from the notification object.

In the case of a GPS warning, if the object to be notified exists in a direction with an angle of 25 degrees or more to the left or right from the front with respect to the traveling direction of the vehicle 40, the control unit 11 sets the object to be notified such as "left direction" or "right direction." It is preferable to notify by adding a voice indicating the direction of the object. This makes it easier for the user to understand the direction of the notification object.

<6-8. Notification Control>
Control unit 11 preferably displays the above-described animation image regardless of the location and time of electronic device 10 when pulsed light Lout is received, but changes the animation image according to at least one of location and time. You may do so. The animation image may be displayed using a photograph or a CG image of the site where the speed control device is installed.

FIG. 43 is a table for explaining notification control by electronic device 10 . In FIG. 43, "o" indicates that the notification control is permitted to be executed in parallel with the first notification control or the second notification control for notifying the presence of the optical speed measuring device, and "x" indicates that it is permitted. Indicates that notification control is not permitted. Control part 11 is good to stop the 3rd information control in the period which performs the 1st information control or the 2nd information control. In this way, when the presence of the speed measuring device 30 is reported, the presence of the radar type speed measuring device can be prevented from being reported. Also, even if the control unit 11 detects the presence of a speed measuring device of another type during the period in which the notification screen of the light reception of the pulsed light is displayed, it is preferable not to notify the presence of the speed measuring device. The other system may be a radar system, and it is preferable to receive microwaves. If the pulsed light causes fewer erroneous detections by the speed measuring device than the radar wave, the accuracy of notification by the speed measuring device is improved. In addition, if the presence of any speed measuring device is notified, the user will consciously try to drive safely, so there will be little inconvenience.

Control part 11 is good to carry out the 4th information control in parallel with the 1st information control or the 2nd information control. As shown in FIG. 44, the control unit 11 may issue a collision warning notification during a period in which the notification screen for receiving the pulsed light is displayed. This is based on the idea that collision warnings are high priority warnings. For example, the control unit 11 displays the display shown in FIG. 44 when performing a collision warning while displaying the notification screen of the light reception of the pulsed light. In this example, the information display areas TA1, TA2 and TC1 are displayed simultaneously. Note that it is preferable that the start warning, the too close warning, and the lane departure warning are similarly issued. In this way, the control unit 11 can issue a collision warning even when the own vehicle is approaching the speed measuring device 30 when it is necessary to issue a collision warning.

It is preferable that the control unit 11 stops the fifth information control while the first information control or the second information control is being performed. The control unit 11 preferably does not issue an alarm regarding inattentive/drowsy driving while the notification screen for receiving the pulsed light is displayed. In this way, the control unit 11 can issue a collision warning when it is necessary to issue a collision warning even when the user's inattentiveness or drowsy driving should be issued.

It is preferable that the control unit 11 performs the fourth notification control in parallel with the third notification control. When the presence of a radar-type speed measuring device is detected and its notification screen is displayed, notification regarding a collision warning is performed. Based on the idea that collision warnings are high priority warnings. For example, when the control unit 11 detects a radar-type speed device and displays the notification screen, the control unit 11 causes the display shown in FIG. 45 to perform a collision warning. In this example, the information display areas TA4, TA5 and TC1 are displayed simultaneously. Note that it is preferable that the start warning, the too close warning, and the lane departure warning are similarly issued. On the other hand, the control unit 11 may stop the fifth notification control while the third notification control is being performed. In this way, when notifying the presence of the speed measuring device 30, it is possible not to issue an alarm regarding inattentive driving or drowsy driving.

The notification control of the electronic device 10 may be in a relationship other than the relationship shown in the table shown in FIG. When a first event and a second event occur at the same time as events to be notified, the control unit 11 notifies the first event with the higher priority, while notifying the second event with the lower priority. It is preferable to stop the notification about the event. In this way, it is possible to make it easier for the user to grasp the occurrence of the first event with the higher priority. Also, the control unit 11 may notify both the first event and the second event at the same time. In this way, the user can grasp information on both the first event and the second event. Also, the control unit 11 may notify the occurrence of three or more events at the same time. In addition, the control unit 11 may match the notification periods for the first event and the second event, but may also make them different. Also, the combination of the first event and the second event may be predetermined in the design stage or the like, or may be set by the user. Further, when two or more notification controls are performed in parallel, notification by display may be executed in parallel, but at least one notification by sound may be stopped.

Further, when the speed of the vehicle 40 is less than the predetermined speed, the electronic device 10 preferably does not perform notification by one or both of the optical method and the radar method. This is because if the vehicle 40 is traveling at a predetermined speed, there are relatively few safety problems, and no notification is necessary. However, when the vehicle 40 is traveling on a predetermined type of road such as a green belt, the electronic device 10 should preferably perform notification by one or both of the optical method and the radar method. The predetermined speed may be, for example, 30 km/h, but other speeds may be used. In this way, even if the speed of the vehicle 40 is less than the predetermined speed, if the presence of the speed measuring device 30 should be notified according to the position of the vehicle 40, this can be notified.

Further, it is preferable that the electronic device 10 has a canceling function corresponding to the radar method but does not have a canceling function corresponding to the optical method. This is because, in the case of the optical system, false alarms that may occur in the radar system are less likely to occur.

Further, the electronic device 10 may notify the content and timing of the notification of the information on the notification object according to the tables shown in FIGS.

[7. Mechanism of Electronic Device 10]
FIG. 49 is a perspective view showing an example of the external configuration of the electronic device 10. As shown in FIG. 50 and 51 are six views showing an example of the external configuration of the electronic device 10. FIG. FIG. 50 shows a front view, top view, right side view, bottom view, and left side view of electronic device 10 . FIG. 51 shows a rear view of the electronic device 10. As shown in FIG. In this example, the housing 100 of the electronic device 10 is divided into a first housing 1001 located on the front side and a second housing 1002 located on the rear side. A display unit 13 , a light emitting unit 23 and an illuminance sensor 201 of the sensor unit 20 are provided on the front surface of the first housing 1001 . The display area of the display unit 13 is positioned in the front opening of the first housing 1001 . A speaker 14 is provided to output sound from the upper end surface of the second housing 1002 . A mounting portion 21 (that is, an SD card slot) for mounting an SD card is provided on the right end face of the housing 100 . A light receiving section 12 is provided in the upper right portion of the rear surface of the housing 100 . A power switch 221 and a DC jack 222 of the power supply unit 22 are provided at the lower left portion of the rear surface of the housing 100 .

As shown in FIG. 51, a lid portion 1003 is provided on the rear surface of the second housing 1002 . Lid portion 1003 is provided at a position near the upper right of second housing 1002 when viewed from the back. The lid portion 1003 is a lid that can be attached to and detached from the second housing 1002, and is a member that is longer in the horizontal direction than in the vertical direction. The lid portion 1003 is a light transmitting portion formed of a material that transmits at least the pulsed light Lout. The lid portion 1003 may be made of the same material as the housing 100, but may be made of a different material. Lid 1003 is made of resin or other material. The lid portion 1003 is made of a material that blocks visible light, and preferably functions as a visible light cut filter, but it does not have to be. Lid 1003 may be a translucent or transparent member. Further, instead of the lid portion 1003, a light transmitting portion, which is a portion that transmits at least the pulsed light Lout, may be formed on the rear surface of the housing 100. FIG.

FIG. 52 is a rear view showing how the lid portion 1003 is removed from the second housing 1002. FIG. As shown in FIG. 52, second housing 1002 is formed with first window 101 and second window 102 . The first window 101 and the second window 102 are openings for guiding external light into the housing 100 . However, the first window 101 and the second window 102 may have a member such as a lens that transmits at least light of a specific wavelength. The first window 101 and the second window 102 are arranged with a predetermined interval in the horizontal direction. Although the first window 101 and the second window 102 are circular, they may have other shapes. Pulsed light enters the housing 100 through a first window 101 and a second window 102 . When the cover part 1003 is a translucent or transparent member, the user can visually recognize the first window 101 and the second window 102 . In some cases, this has a design appeal.

FIG. 53 is an exploded perspective view of the electronic device 10. FIG. As shown in FIGS. 53A and 53B, inside the housing 100 of the electronic device 10, the display unit 13, the first substrate 1010, and the second substrate 1030 are arranged in this order from the first housing 1001 side. Contained. The first substrate 1010 is a rectangular substrate that is longer in the horizontal direction than in the vertical direction in plan view. The display unit 13 is mounted on the first surface on the front side of the first substrate 1010 . A control circuit 1331 is mounted on the first surface of the first substrate 1010 . The control circuit 1331 may implement some or all of the functions of the control section 11 . The control circuit 1331 may be, for example, an integrated circuit (IC). Although there is one control circuit 1331 here, it may be replaced with two or more control circuits. A microwave receiver 15 is mounted on the second surface of the first substrate 1010 opposite to the first surface. The microwave receiving portion 15 has a substantially rectangular parallelepiped shape. The second housing 1002 accommodates these members and is screwed to the first housing 1001 .

FIG. 54 is a rear view showing a state in which the second housing 1002 is further removed from the electronic device 10. FIG. 55, 56 and 57 are perspective views showing the internal configuration of electronic device 10 in this state. The second substrate 1030 is arranged on the back side of the first substrate 1010 so as to overlap the first substrate 1010 . The second substrate 1030 is a substantially L-shaped substrate in plan view. The second substrate 1030 has such a shape because the area where the microwave receiving section 15 is present is notched. By doing so, it is possible to suppress an increase in the thickness of the electronic device 10 compared to the case where the second substrate 130 overlaps the microwave receiving section 15 . The light receiving section 12 is mounted on the first region Ar3 of the second substrate 1030 that is long in the vertical direction. A first wavelength selector 121 and a first light receiving element 122 are provided facing the first window 101 . A second wavelength selector 123 and a second light receiving element 124 are provided facing the second window 102 .

Facing the first wavelength selection section 121 , the first light receiving element 122 , and the second window 102 , the second wavelength selection section 123 and the second light receiving element 124 are accommodated in the shield case 1031 . The shield case 1031 is made of, for example, a conductive material (eg, metal), and is a member for preventing the elements of the light receiving section 12 from generating noise due to electromagnetic waves from the outside. A source of the electromagnetic waves is an electrical component such as a drive unit that drives wipers provided in the vehicle 40 . The shield case 1031 has a partition for separating the space in which the first light receiving element 122 is accommodated and the space in which the second light receiving element 124 is accommodated. This partition also blocks the propagation of pulsed light. By doing so, the signals output from the first light receiving element 122 and the second light receiving element 124 are less susceptible to electromagnetic noise than in the case where they are not shielded with a conductive material. In addition, due to the existence of the partition wall, the light transmitted through the first wavelength selection section 121 may be received by the second light receiving element 124 and the light transmitted through the second wavelength selection section 123 may be received by the first light receiving element 122. becomes lower.

In the second area Ar4 of the second substrate 1030, the GPS receiver 16 and the speaker 14 are mounted. The second region Ar4 is shorter in the vertical direction than the first region Ar3 and protrudes above the first region Ar3. In the GPS receiver 16, the GPS module is mounted on the first surface on the front side, and the GPS antenna is mounted on the second surface on the rear side. The GPS antenna is arranged above the microwave receiving section 15 in order to ensure upward directivity. Also, in order to secure a space for the GPS receiver 16, the second region Ar4 of the second substrate 1030 protrudes above the first region Ar3. The microwave receiver 15 is positioned below the GPS receiver 16 and the speaker 14 . Mounting portion 21 is mounted on the left side of first substrate 1010 . A power switch 221 , a DC jack 222 and a button battery 223 of the power supply section 22 are provided below the mounting section 21 . A button battery 223 is an internal power source of the electronic device 10 . Also, the wireless module 171 of the communication unit 17 is mounted on the front side of the second substrate 1030 and on the side opposite to the first area Ar3.

FIG. 58 shows a photograph of the second substrate 1030. FIG. FIG. 58(a) is a view seen from the rear side, and FIG. 58(b) is a view seen from the front side. The GPS receiver 16 is mounted in the area indicated as "(16)" in FIG. 58(a), and the speaker 14 is mounted in the area indicated as "(14)". Also, the light receiving section 12 is mounted on the area surrounded by the white line on the second substrate 1030 . FIG. 59 shows the electrical configuration of the light receiving section 12. As shown in FIG. The first light receiving element 122 is the photodiode PD1 here. Light passing through the first wavelength selector 121 is incident on the light receiving surface of the photodiode PD1. The cathode of PD1 is connected to the power supply line on the high potential side, and the anode is connected to one end of the resistor R1. The other end of resistor R1 is grounded. The input end of the amplifier IC1 (1/2) is commonly connected to the anode of the photodiode PD1 and one end of the resistor R1. The output end of the amplifier IC1 (1/2) is connected to the negative input terminal of the differential amplifier AMP. The second light receiving element 124 is the photodiode PD2 here. Light passing through the second wavelength selector 123 is incident on the light receiving surface of the photodiode PD2. The cathode of the photodiode PD2 is connected to the power line on the high potential side, and the anode is connected to one end of the resistor R2. The other end of resistor R2 is grounded. The input end of the amplifier IC1 (2/2) is commonly connected to the anode of the photodiode PD2 and one end of the resistor R2. The output end of the amplifier IC1 (2/2) is connected to the positive input terminal of the differential amplifier AMP. The amplifier IC1(1/2) and the amplifier IC1(2/2) halve the output. A signal corresponding to the difference between the amounts of light received by the photodiodes PD1 and PD2 is output from the output end of the differential amplifier AMP. The control unit 11 detects the speed measuring device 30 based on this difference. The controller 11 preferably detects the speed measuring device 30 based on the signal amplified by the differential amplifier AMP, further passed through the amplifier Q1 and the amplifier IC2 (2/2), and after waveform shaping.

FIG. 60 is a graph showing an example of filter characteristics of the first wavelength selection section 121 and the second wavelength selection section 123. FIG. The first wavelength selector 121 is a band-pass filter here. As shown in FIG. 60(a), light in a wavelength region including a specific wavelength λout905 nm, which is the target wavelength, is transmitted, and light in other wavelength regions is blocked. The width of the wavelength region through which light is transmitted is, for example, 20 nm, but it is more desirable that it be narrower than this. The second wavelength selector 123 is, for example, a band elimination filter. As shown in FIG. 60(b), the second wavelength selector 123 blocks light in a wavelength region including the specific wavelength λout, and allows light in other wavelength regions, which are non-target wavelengths, to pass therethrough. The width of the wavelength region in which light is blocked is, for example, 20 nm, but it is more desirable to be narrower than this.

In FIG. 60, the transmittance in the frequency range through which light is transmitted is greater than 80%, and the frequency range in which light is cut off is less than 15%. The wavelength selector desirably exhibits a steep characteristic as exemplified in FIG. 60, but may exhibit a broader characteristic.

When the second substrate 1030 is further removed from the electronic device 10, the state shown in FIG. 61 is obtained.

[8. Other examples of electronic devices]
FIG. 62 is a perspective view showing an external configuration of an electronic device 80, which is another example of the electronic device. FIG. 63 is a perspective view showing the external configuration of the electronic device 80 when viewed obliquely from the right front side with respect to the traveling direction of the vehicle. As shown in FIGS. 62 and 63, the electronic device 80 is a substantially rectangular parallelepiped box-shaped device. The electronic device 80 does not have the display unit 13 and outputs various signals to an external device via a wired cable 81 . The electronic device 80 may communicate with an external device via a wireless communication path. The electronic device 80 is divided into a first housing 801 located above and a second housing 802 located below. A lid portion 803 is provided on the front side of the electronic device 80 . Like the lid portion 1003, the lid portion 803 is a light transmitting member made of a material that transmits pulsed light.

64, 65 and 66 are perspective views showing the internal configuration of electronic device 80. FIG. As shown in FIGS. 63 to 65, inside the electronic device 80, a first substrate 810, a second substrate 820, and a third substrate 830 are arranged from bottom to top with a distance therebetween. . A button battery 811 is provided on the first substrate 810 and is an internal power source of the electronic device 80 . The difference from the conventional electronic device is that the light receiving portion 841 is formed on the fourth substrate 840 so as to receive the pulsed light from the front side in the traveling direction of the vehicle, and the antenna portion of the microwave receiving portion is adjacent thereto. 850 is arranged. The light receiving section 841 may have the same configuration as the light receiving section 12 and is electrically connected to the fourth substrate 840 . The fourth substrate 840 is electrically connected to the first substrate 810 via terminals (not shown). Antenna section 850 is a portion of the microwave receiving section that functions as an antenna. The antenna section 850 is configured by a predetermined pattern formed on the substrate. A processing circuit 851 that processes a signal from the antenna section 850 of the microwave receiving section is mounted on the second substrate 820 . A GPS receiver 860 is mounted above the third substrate 830 . Under such a configuration, the electronic device 80 outputs a notification using sound or display to an output destination (for example, a conventional laser detector) connected to the outside via the cable 81 to notify the information. performs notification control. A function related to this notification may be the same as that of the electronic device 10 . The antenna section 850 is arranged adjacent to the fourth substrate 840 . It is preferable that the normal direction of the antenna part 850 and the normal direction of the fourth substrate 840 intersect each other, and it is particularly preferable that they are parallel to each other.

In this way, it is possible to provide a technique for notifying the user of the presence of the speed measuring device while reducing the number of changes from the existing system.

[9. Noise reduction method]
If the source of noise is the circuit of the light receiving section 12 itself, it is effective to reduce the gain of the amplifier to lower the noise floor. On the other hand, if the C/N ratio in the light receiving section is improved, the gain of the amplifier can be increased, which is desirable. The noise can come from the amplifier circuit itself, which is random noise. The amplifier circuit refers to the portion of the circuit section rather than the photodiode. Therefore, in order to suppress noise, it is preferable to employ a configuration in which the output of the light receiving section 12 is input to two sets of amplifier circuits (amplifier circuit 1 and amplifier circuit 2). In this example, as shown in FIG. 67, the noise peak exceeding the threshold Th of the amplifier circuit 1 is the peak N1, the peak of the signal when the pulsed light is received is the peak P1, and the noise peak exceeding the threshold Th of the amplifier circuit 2 is N1. Assuming that the peak is N2 and the signal when receiving the pulsed light is peak P2, the probability that N1 and N2 coincide in terms of time is very low, and P1 and P2 coincide. Therefore, if both N1 and N2 are detected at the same time and regarded as light reception of pulsed light, it is considered that noise reduction is reduced and detection accuracy is improved. As shown in FIG. 67, if the peak values exceeding the threshold of the two circuits are shifted by (P1+P2)/2, the peak value can be lowered by adding and dividing by 2. A comparator may be used to determine whether there is such a shift in peak value.

In this embodiment, since the amplifier Q1 is the source of noise, the amplifier Q1 may be replaced by an amplifier in circuit 1, an amplifier in circuit 2, and a circuit that halves the outputs of these amplifiers. . Also, an integration circuit may be provided in the circuit of the light receiving section 12 . Alternatively, the circuit 1 may be integrated by an integration circuit using a capacitor or the like, the circuit 2 may remain as it is, and a comparator may be provided.

[10. Other embodiments]
(10-1) The electronic device 10 may be a system that issues an alarm when a pattern of reflectors that looks like a police officer is detected. A pattern of reflectors is a pattern of reflectors placed at a predetermined point, such as a police officer. This pattern may be a pattern used for a given signboard or a police officer's costume. The electronic device 10 may use the vehicle-mounted camera 50 to obtain an image of the front of the vehicle 40, analyze the image, and detect the presence of the predetermined reflector pattern. In this way, it is possible to notify the presence of the police in a place where there is a high possibility of the presence of the police, thereby reducing the possibility of erroneous reporting. The warning may be visual, audible, or a combination thereof.

(10-2) In (10-1), the warning may be a speed control warning. The speed control alarm may be an alarm indicating that the vehicle is approaching a speed control point.

(10-3) As the pattern of the reflective material that looks like the police officer to be detected, the horizontal line corresponding to the position of the waist of the person, the vertical line corresponding to the baton, and the horizontal position of the helmet It is preferable that the pattern includes at least two of the lines corresponding to , the lines corresponding to the sash, and the lines corresponding to the V-shape of the vest. For example, it is preferable that lines are detected in the order of oblique, horizontal, and vertical from the top.

(10-4) The electronic device 10 may detect the pattern of the reflective material that looks like a police officer based on the detection of the reflection level corresponding to the retroreflective tape.

(10-5) It is preferable that the electronic device 10 suppresses the detection of the pattern of the reflective material that looks like the presence of the police officer at a position higher than the height of a person. As a suppressing method, it is preferable to prevent detection of a portion having a height equal to or higher than a certain height in advance. Also, even if the pattern is detected, if the height is equal to or higher than a certain height, it should not be detected. In addition, it is also preferable to make it a condition that all the constituent elements of the pattern of the reflective material are included in the height of the person in the vertical direction (for example, within 2 m).

In (10-5), the electronic device 10 should also exclude the position corresponding to the road surface to prevent misidentification of a stop line or the like on the road surface. The stop line on the road surface consists of vertical and horizontal lines, and there are cases where the amount of light is the same as retroreflection, so it is excluded.

(10-6) The electronic device 10 stores the position information of the place where the pattern of the reflective material that looks like the police officer is installed in advance, and suppresses the alarm at the stored position. It is better to

(10-7) The electronic device 10 may change the mode of the warning according to the detected number of patterns of reflectors that look like the presence of the police officer. For example, when one reflective material pattern that looks like a police officer is detected, the crackdown warning is not issued as the alarm, and when multiple reflective material patterns that look like the police officer are detected, It is preferable to issue an enforcement warning as the warning.

(10-8) It is preferable that the electronic device 10 suppresses the alarm when only one reflective pattern that looks like the presence of the police officer is detected within a predetermined period of time. The electronic device 10 may determine whether to issue an alarm based on the number of detections within a predetermined time window. The predetermined time is preferably about 2 seconds.

(10-9) It is preferable that the electronic device 10 detects the pattern of the reflector that looks like the presence of the police officer, based on the video signal captured by the camera provided in the drive recorder. There is a possibility that it can be detected from a distance beyond the detection range of pulsed light.

(10-10) The electronic device 10 does not detect the pattern of the reflective material that looks like the police officer is in the rear, does not detect the passing lane in front, and detects the left side of the driving lane. It is good to say.

(10-11) The electronic device 10 has a function of giving an alarm when it detects an electromagnetic wave (for example, pulsed light or microwave) for measuring the speed of a vehicle traveling on a road. Even if a pattern of reflectors that appear to be present is detected, if an electromagnetic wave for measuring the speed of the vehicle for traveling on the road is detected, the speed of the vehicle for traveling on the road is detected. It is preferable that an alarm is issued preferentially when an electromagnetic wave for measuring is detected, and an alarm is suppressed when a pattern of reflectors that looks like the presence of the police officer is detected.

(10-12) The electronic device 10 has a function of giving an alarm when an electromagnetic wave for measuring the speed of a vehicle traveling on a road is detected, and the reflector pattern that looks like the police officer is present. is detected, and when an electromagnetic wave for measuring the speed of a vehicle traveling on a road is detected, a warning different from the warning when it is detected alone is issued (especially when the degree of urgency is higher ) should be given.

(10-13) The electronic device 10 is equipped with an infrared detection device for detecting the presence or absence of an object, and determines (guesses) the type of crackdown together with the detection of a pattern of reflectors that looks like a police officer. It may have functions. If there is no person and there is a reflector, there is a high possibility that it is only Orvis. If there are people and reflective materials, there is a high possibility of a wide variety of crackdowns, including Orbis. The control unit 11 preferably notifies the information based on the determination result of such type. As the notification, one or both of display and sound may be different.

(10-14) When the electronic device 10 recognizes a moving object that matches the night police pattern, it is preferable to determine that it is a police officer instead of a night police signboard. The control unit 11 performs the calculation by canceling the own vehicle behavior.

(10-15) The electronic device 10 should have a function of suppressing (for example, not executing) the night police warning during the daytime (or when it is bright). In particular, it is better not to even recognize the night police signboard.

[11. Other embodiments]
Furthermore, another embodiment will be described. [11. Other Embodiments] section may include configurations based on ideas common to the items described in other sections.

The electronic device 10 may have a protruding part used for receiving the pulsed light from the speed measuring device 30 . The electronic device 10 may have, for example, a shape in which a portion where at least part of the light receiving section 12 is provided protrudes from other portions. A specific embodiment of such a configuration will be described below.

(11-1) The electronic device 10 has a light incident portion at a position that protrudes forward from the back or side of the housing in the traveling direction of the vehicle (for example, the normal direction of the display screen of the display unit). may have. The incident portion is a portion of the electronic device 10 where light received by the light receiving portion is incident. The incident part is a part included in the appearance of the electronic device 10 . In the electronic device 10, for example, the portion provided with the lid portion 1003 described above is an incident portion, and the portion provided with the first window 101 or the second window 102 is also an incident portion.

By doing so, the light can be received further forward, so that the influence of obstacles that block the laser light can be reduced. In particular, when the light passing through the windshield is received, the influence of the light from the velocity measuring device 30 refracted by the windshield can be reduced by placing the incident part closer to the windshield. In particular, when the display unit and the light receiving unit are integrally formed into a housing, if this configuration is adopted, the installation in the vehicle interior can be made simple and easy, and the above effects can be reduced.

In the example of FIG. 68( a ), on the rear surface 1004 of the housing 100 of the electronic device 10 , there are a first portion 10041 and a second portion 1042 that protrudes forward from the first portion 1041 in the traveling direction of the vehicle. be provided. The first portion 1041 is flat. The second portion 1032 here has a hemispherical shape. Part or all of the second portion 1042 corresponds to the incident portion.

The second part 1042 may be positioned, for example, above the center of the rear surface 1004 in the vertical direction. It may be less susceptible to obstacles that block the light from the speed measuring device 30 than if it were below. The second portion 1042 is provided on the right side of the center of the rear surface 1004 in the left-right direction as viewed from the rear side (preferably the side on which the vehicle compartment exists) in the traveling direction of the vehicle. Alternatively, the second portion 1042 may be provided on the left side of the center of the back surface 1004 in the left-right direction when viewed from the rear side in the traveling direction of the vehicle. In this case, the incident part is positioned on the left side in the traveling direction of the vehicle, which is closer to the speed measuring device 30, which may be desirable from the viewpoint of light reception.

(11-2) The electronic device 10 has an incident part at a position that protrudes leftward (or in a direction parallel to the display screen of the display part) with respect to the traveling direction of the vehicle from the back or side of the housing. You may

(11-3) The electronic device 10 moves from the back or side of the housing forward and left in the traveling direction of the vehicle (or to the left in the direction that intersects the normal line of the display screen of the display unit 13). You may have an incident part in the protruding position. In this case, it is preferable that the incident portion has a surface whose normal direction is the oblique left direction.

In the example of FIG. 68(b), on the rear surface 1004A of the housing of the electronic device 10, there are a first portion 1041 and a second portion 10042A projecting forward and leftward in the traveling direction of the vehicle from the first portion 1041A. be provided. The second portion 1042A is prismatic here. Part or all of the tip-side surface 1043 of the second portion 1005B corresponds to the incident portion. The surface 1043 is not parallel to the first portion 1041, but oblique to the traveling direction of the vehicle. In this case, the incident part is positioned on the left side in the traveling direction of the vehicle, which is closer to the speed measuring device 30, which may be desirable from the viewpoint of light reception.

The surface 1043 may be, for example, a flat surface, but may include a portion of a curved surface facing forward and to the left (for example, the curved surface may be an arcuate surface or a spherical surface). The position where the second portion 1042A is provided on the back surface 1004A can be modified in various ways, similar to the position where the second portion 1042 is provided on the back surface 1004A.

Under this configuration, at least one of the light receiving elements of the light receiving section 12 may be provided inside the second portion 1042A and arranged in the direction in which the surface 1043 faces.

In the configurations of (11-1) to (11-3), the length in the direction of protrusion of the portion (eg, second parts 1042, 1042A) protruding from the rear surface of the housing is greater than the thickness of the housing of electronic device 10. may be smaller or larger. In the example of FIG. 69( a ), the rear surface 1004B of the housing 100 of the electronic device 10 has a first portion 1041 and a second portion 1042B projecting further forward than the first portion 1041 in the traveling direction of the vehicle. be provided. The length in the projecting direction of the second portion 1042B is smaller than the thickness of the housing. In the example of FIG. 69(b), the rear surface 1004C of the housing 100 of the electronic device 10 has a first portion 1041 and a second portion 1042C that protrudes further forward than the first portion 1041 in the traveling direction of the vehicle. be provided. The length in the projecting direction of the second portion 1042D is greater than the thickness of the housing.

In the configurations (11-1) to (11-3), the portion protruding from the rear surface of the housing may be rectangular parallelepiped, cubic, columnar or other columnar. Also, the surface of the tip of this protruding portion may be a flat surface, an inclined surface that is inclined with respect to the surface of the first portion 1041, a curved surface, or a surface of another shape. At least a portion of the projecting portion may be semicylindrical, spherical, triangular prismatic, lenticular, prismatic, or the like so as to change the optical path or provide light convergence. It is preferable to provide a sensor at the optical path change destination and the light condensing destination.

(11-4) The entrance section may be provided separately from the housing 100 . The entrance section may be provided at a site that physically contacts the housing 100 or may be provided at a site that does not come into contact with the housing 100 . For example, any configuration may be used as long as light incident on the incident portion is received by the light receiving portion and a signal corresponding to the received light is supplied to the control portion 11 . In this way, even if there are restrictions on changes in the position or orientation of the housing 100 from the viewpoint of visibility of the display unit 13, for example, the light from the speed measuring device 30 can be easily received. The position or orientation of the entrance section can be adjusted.

The electronic device has a connector for connecting wiring that outputs a signal corresponding to the light received from the "separate body", and the control unit performs notification control based on the signal corresponding to the light received through the connector. you can go

(11-5) As the "separate body" of (11-4), the incident part may be provided in a mounting member attached to the vehicle. In this case, the mounting members may be provided at the positions of the incident portions (11-1) to (11-3). In this case, the mounting member may be attached to the housing by gluing, fasteners, or other methods.

(11-6) A drive recorder may be used as the "separate body" of (11-4).

(11-7) As the "separate body" of (11-4), it is preferable to use the mounting portion of the drive recorder. The attachment portion is a portion for attaching the drive recorder to a predetermined attachment location of the vehicle. The mounting portion is, for example, a portion that is physically connected to the drive recorder, and may include a portion that is in surface contact with the mounting portion, for example. The mounting member is, for example, mounted on the windshield of the vehicle, and preferably has an incident portion on the mounting surface side of the windshield.

(11-8) The configuration is not limited to the configuration in which the housing has the function of performing notification control, and the housing may have the drive recorder function.

(11-9) The incidence section may be detachably attached to the housing. For example, the housing may be provided with a mounting portion for mounting the incident portion. The mounting portion may be provided with a fixing portion for fixing the incident portion.

(11-10) It is preferable to provide adjusting means for adjusting the direction of the incident portion with respect to the housing. The adjusting means may have a structure similar to that for adjusting the direction of the camera of a mirror type drive recorder. Alternatively, a camera may be provided in the housing, and a structure in which the directions of the camera and the entrance section can be adjusted independently of each other may be employed.

(11-11) When the control unit 11 of the electronic device 10 determines that the light from the speed measuring device 30 has been received, it is preferable to record the image and the values of various sensors before and after that. The control unit 11 may also record information as to whether or not the area in which the vehicle is located is within a predetermined area such as the zone 30 .

(11-12) In the electronic device 10, the control unit 11 is configured to record setting information related to notification (for example, alarm) when light from the speed measuring device 30 is received, together with its position information and the like. should be

(11-13) In the configuration in which notification control is executed when the electronic device 10 receives a predetermined radio wave (for example, microwave), the incident portion is forward of the microwave receiving portion 15 in the traveling direction of the vehicle. It is better to arrange them. In this case, the term "arranged on the front side" means that the incidence section protrudes further on the front side than the microwave receiving section 15. As shown in FIG.

(11-14) In the configuration where the electronic device 10 executes notification control when the position information acquired from the GPS receiver 16 satisfies a predetermined condition, the incidence unit is closer to the vehicle than the GPS receiver 16. It is preferable to arrange it on the front side in the traveling direction. In this case, the term "arranged on the front side" means that the incidence section protrudes further on the front side than the microwave receiving section 15. As shown in FIG. Here, the predetermined condition is that the current position indicated by the position information acquired from the GPS receiving unit 16 and the position indicated by the position information stored in the storage unit 18 are in a predetermined close relationship. can be

(11-15) In the configuration in which the electronic device 10 includes the light-emitting portion 23 and other light-emitting portions, the incident portion may be provided on the surface opposite to the surface on which the light-emitting portion is provided. When the light emitting unit is provided on the front side of the housing 100, the light emitting unit is preferably provided on the back side.

(11-16) A portion (hereinafter referred to as a “second incident portion”) for obtaining a second received light amount corresponding to the second window 102 is provided within the protruding portion where the incident portion is provided. It is better to be able to In this case, it is preferable that the second incidence section is provided in the protruding portion in which the incidence section is provided, in the same direction as that of the incidence section. It is preferable that the second incidence section is provided in a projecting portion where the incidence section is provided, with a direction different from that of the incidence section.

(11-17)
It is preferable that the second incidence section is provided in a portion of the housing that is different from the projecting portion where the incidence section is provided. It is preferable that the second incidence section is provided in the protruding portion where the incidence section is provided, in the same direction as that of the incidence section. The second incidence section may be provided in a projecting portion where the incidence section is provided, with a direction different from that of the incidence section.

(11-18)
When the controller 11 of the electronic device 10 determines that the pulsed light is received in a predetermined proximity relationship with at least one of the zone 30, a one-lane road, a school, a kindergarten, or a nursery school, the speed measuring device 30 or decrease the likelihood of being a false alarm source. Note that Zone 30 is an area where a speed limit of 30 km/h is enforced for the purpose of restricting the running speed of vehicles and passing through the area.

Some optical speed measurement devices are portable, while others are fixed on the side of the road or on the road. In this way, the notification can be made more reliably in such places. Also, even if the possibility of false alarms increases in such places, it is necessary to ensure that the driver is safe in such places even if the possibility of false alarms increases, because these places are places where special attention should be paid to accidents. The inventors have found that it is possible to raise awareness of

(11-19) The control unit 11 of the electronic device 10 determines at least one of a predetermined time zone such as midnight, predetermined weather such as bad weather, and driving on a predetermined road such as multiple lanes. If so, the likelihood of it being the speed measuring device 30 should be increased, or the likelihood of it being a false alarm source should be decreased.

The inventors have found that portable types often do not perform measurements in such situations, partly due to the increased likelihood of erroneous measurements. In this way, false alarms can be particularly reduced in such situations. Especially in such a situation, there is a high possibility that light from other vehicles, such as lights, will enter the light receiving part directly or indirectly through diffuse reflection, which increases the possibility of false alarms. By doing so, such problems can be reduced.

(11-20) The second light receiving element 124 is preferably used to detect the state of light other than the light from the velocity measuring device 30. FIG. The control unit 11 of the electronic device 10 may detect the state of light other than the light from the speed measuring device 30 based on the light received by the second light receiving element 124 . The control unit 11 has, for example, a function of changing the brightness of the screen/luminous body (LED etc.) according to the amount of light in the surroundings, a function of switching the screen between daytime display and nighttime display, It is good to detect whether the wiper is moving or not. Whether or not the wiper is moving may be detected by detecting whether the wiper is Hi or Low based on the periodicity with which the light is blocked.

In this way, when the electronic device 10 has a function of detecting the state of light around the electronic device 10 and performing control based on the detection result, the state of light around the electronic device 10 can be detected. Since there is no need to separately provide a sensor for detection, the cost can be reduced, and the size of the device (housing) can be easily reduced.

(11-21) It has already been explained that the light receiving section should be provided outside the vehicle and the part for realizing the notification control function should be provided inside the vehicle. the light receiving part. , the range of width in the height direction of the wheels of the vehicle (especially, the range of width in the height of the license plate) and may be provided at a position closer to the front of the vehicle. the light receiving part. It may be provided in a camera installed outside the vehicle interior for imaging the front or left front of the vehicle (here, it may include a part of the left side), or it may be configured so that it can be installed adjacent to the camera. good. Desirably, the image picked up by the camera and the signal corresponding to the light received by the light receiving unit can be routed through a single cable. In this case, both signal lines should be placed in the same coating.

(11-22) The light-receiving unit may be provided at a position in front of the driver's seat in the vehicle interior and at a position including the same height range as the height range of a member through which light is transmitted from the exterior of the vehicle to the interior of the vehicle. . By doing so, it is possible to reduce the blocking of light by the wiper on a sunny day, and more reliable detection can be performed.

It is preferable that the light-receiving part has a means for installing it at a position that does not overlap the initial position of the wiper when viewed from the inside of the vehicle. It is preferable that the light receiving unit is installed as far down as possible in the vehicle. By doing so, it is less likely that the front view will be obstructed during driving, and the blocking of the light from the speed measuring device 30 can be reduced, so that the speed measuring device 30 can be detected more reliably. The position of the light-receiving part may be, for example, the position of the license plate. The light receiving section is preferably arranged on the left side in the traveling direction of the vehicle. Since the light from the speed measuring device 30 is obliquely radiated toward the vehicle from the sidewalk on the left side, it is possible to reduce the possibility of being shadowed by the preceding vehicle. In particular, when the vehicle ahead is several meters in front of the vehicle, the light emitted obliquely from the sidewalk on the left side of the vehicle is blocked by the vehicle ahead, making detection impossible. In addition, it is possible to reduce the fluctuation of the state such that the light from the speed measuring device 30 is detected or not detected when the distance between the own vehicle and the preceding vehicle changes. can.

The control unit 11 of the electronic device 10 preferably notifies that it becomes difficult to receive the light from the speed measuring device 30 when the distance to the preceding vehicle is in a predetermined proximity state. The control unit 11 may change the sensitivity of light reception from the speed measuring device 30 depending on whether the distance to the preceding vehicle is in a predetermined proximity state or not. For example, when the distance to the preceding vehicle is in a predetermined proximity state, it is preferable to increase the sensitivity more than when it is not.

(11-23) The control unit 11 determines that the light is from the notification object when the pattern of the light sent from the speed measuring device 30 matches or resembles it. When the light does not match or resemble this pattern, it may be determined that the light is not from the notification object. The pattern of light emitted by the velocity measuring device may be determined by program logic. Information about light patterns is stored in advance in a storage means (for example, storage example 1: parameters from (11-24) to (11-26) below, storage example 2: parameters from (11-24) to (11- 26), information on the degree of change in the amount of light in time series), it is preferable to determine whether the pattern is similar to the stored pattern.

(11-24) When the control unit 11 of the electronic device 10 receives light that changes between on and off at predetermined time intervals (for example, at intervals of several tens of microseconds), it determines that the velocity measuring device 30 exists. good. The control unit 11 may not determine that the speed measuring device 30 exists when light other than this is received. In this case, the ON time should be on the order of nanoseconds, and the OFF time should be on the order of several tens of microseconds.

The control unit 11 of the electronic device 10 turns on for a predetermined on-time (for example, a very short time) and turns off for a longer predetermined off-time (a much longer time than the very short time). It is preferable to determine that the light is from the speed measuring device 30 when it is detected that the light is periodically repeated. The control unit 11 of the electronic device 10 may determine that the light is not from the speed measuring device 30 when the light is other than this.

(11-25) The control unit 11 of the electronic device 10 causes the light amount to change periodically (for example, sweep in the horizontal direction (left and right)) at predetermined time intervals (for example, about several tens to several hundred ms). It may be determined that the velocity measuring device 30 is present when light is received. The control unit 11 may not determine that the speed measuring device 30 exists when light other than this is received.

(11-26) In the configurations of (11-24) to (11-25), the controller 11 may determine that the speed measuring device 30 is present based on the light received at a plurality of timings. For example, when the controller 11 determines that the speed measuring device 30 exists based on the light received at a plurality of predetermined timings, the speed measuring device 30 finally exists.

(11-27) An antenna unit and a display unit are provided as separate housings, the antenna unit is electrically connected to the display unit, and the display unit performs predetermined notification control (for example, A vehicle electronic device (e.g., alarm device) that performs an alarm), wherein the light receiving unit is provided in the housing of the antenna unit, or in a housing separate from the housing of the antenna unit and the housing of the display unit, and the display The unit may have a function of performing notification (for example, alarm) regarding optical speed measurement of the vehicle based on a signal regarding the light receiving state of the light receiving unit from a housing including the light receiving unit. The antenna section may be one or both of the antenna of the GPS receiver section or the antenna of the microwave receiver section. The antenna section is preferably connected to the monitor section by wire or wirelessly. The light receiving section may have the same configuration as the light receiving section 12 and is a light receiving section for receiving light from the speed measuring device 30 .

(11-28) In the housing of the antenna unit provided with the light receiving unit of (11-27) or the another housing provided with the light receiving unit, a light emitter (for example, an LED, etc.) blinks while the vehicle is stopped. (Example: dummy) It is better to have a security function. The light emitter is preferably provided on the upper surface of the housing, and the light receiving section is preferably provided on the rear side.

(11-29) The “electrical connection” of (11-27) is performed by wire, and includes a relay unit having a further housing between the antenna unit and the display unit, and the relay unit receives the light. It is preferable to provide a function of supplying power to the electronic circuit of the housing having the unit and relaying a signal of the electronic circuit of the housing having the light receiving unit to the display unit.

(11-30) Under a configuration comprising an antenna for a GPS receiver (that is, a "GPS antenna"), an antenna for a microwave receiver, and a light receiver, the GPS antenna is placed at the top of these. should be

(11-31) Under the configuration including the GPS antenna, the antenna of the microwave receiving section, and the light receiving section, the antenna of the microwave receiving section and the light receiving section are arranged at a position forward of the GPS antenna in the traveling direction. It is better to

(11-32) Under the configuration including the antenna of the microwave receiving section and the light receiving section, it is preferable that both are arranged side by side in the horizontal direction. In this case, it is preferable that they do not overlap in the vertical direction.

(11-33) In a configuration including an antenna of a microwave receiving section and a light receiving section, the light receiving section may be arranged above the antenna of the microwave receiving section.

(11-34) The drive recorder has a function of connecting the electronic circuit of the housing having the light receiving portion to the drive recorder, and the drive recorder outputs the image when the light from the speed measuring device 30 is received by the light receiving portion. A recording function should be provided. The display unit preferably has a function of reproducing the recorded video when the light from the speed measuring device 30 is received. This video is, for example, video of a predetermined period of recorded video.

(11-35) The electronic device should preferably have a configuration for receiving light using a light guide tube such as an optical fiber or other light guide member. For example, there are cases where the GPS antenna, the antenna of the microwave receiving section, and the light receiving section cannot be arranged at ideal positions.

(11-36) FIG. 70(a) is a diagram showing an example of such a configuration. In this example, the antenna 1053 of the microwave receiving section is arranged on the substrate 1052 in the housing 1051 on the front side in the traveling direction of the vehicle, and the light receiving section 12 is arranged on the rear side thereof. The GPS antenna 1054 is arranged at a position overlapping the light receiving section 12 in the vertical direction. The light guide member 1055 is arranged on one side when viewed from the antenna 1053 with respect to the traveling direction of the vehicle. Light incident on the end surface of the light guide member 1055 on the vehicle front side is guided to the opposite end surface. The light receiving section 12 faces the end face on the opposite side. The light receiving portion 12 receives the light emitted from the opposite end face. note that. The light guide member 1055 may be arranged so that light from the front side in the traveling direction of the vehicle can enter, and the arrangement of each member is not limited to the example described in FIG. 70(a). FIG. 70(b) is a view of this electronic device viewed from above. As shown in FIG. 70(b), if the light guide member 1055 is arranged so as to be rotatable about the rear axis 1056, the mounting problem is improved.

In the above description, in consideration of the light received from the speed measuring device located on the left side, light reflected from the median strip etc. may arrive at the location where each member is arranged on the left side. Therefore, it may be read as the configuration arranged on the right side.

(11-36) The member functioning as a visible light cut filter, exemplified by the lid portions 1003 and 803, varies in light receiving sensitivity of the light receiving portion due to the difference in surface state. For example, the surface of the member may be a textured surface (relatively rough surface), but it may be a smoother (glossy and less rough) surface (for example, a polished surface). An improvement in sensitivity can be expected. In the case of the textured surface, light diffuses on the surface. Expecting this effect, it is thought that sensitivity can be easily obtained even if the light receiving direction is shifted in the horizontal direction. On the other hand, the inventor thought that a polished surface would not diffuse light when passing through the member functioning as the visible light cut filter, and would increase the amount of light reaching the light-receiving part, resulting in an increase in sensitivity. FIG. 71 is a diagram showing the difference between the presence and absence of texturing.

In the case of embossing, for example, a configuration that does not impair the design is preferable. This is because, for example, it may be desirable that the inside of the housing is not visible from the outside. If the periphery of the member functioning as the visible light cut filter is given a pattern such as embossing, the part of the member functioning as the visible light cut filter may also have a similar pattern. About the color of this part, the color seen from the outside. It is preferable that the color be similar to that of the housing and transmit the light to be detected.

(11-37) When the control unit 11 of the electronic device 10 detects an image corresponding to the light from the speed measuring device 30 in the imaging area using a camera capable of imaging the infrared region, it performs alarm control. It is better to The image corresponding to this light may be blinking light (for example, in an area with a small number of pixels (a range corresponding to a point)). The control unit 11 of the electronic device 10 may determine that the position of the image corresponding to this light in the captured image corresponds to the installation position of the speed measuring device. The control unit 11 of the electronic device 10 may identify an area directly above the driving road of the road and on the side of the driving lane (roadside belt position) by image recognition and determine whether or not there is a blinking light at that position. .

(11-38) A separate body may be provided so that the lens passes after the visible light cut filter, but if the lens itself is made of a material that cuts visible light, and a separate visible light cut filter is not provided on the housing surface side. good.

(11-39) It is preferable to provide adjusting means capable of adjusting the orientation of the portion (the projecting portion described above) where the incident portion is provided. The adjustment means can change the direction of the portion where the incident portion is provided when the force of a human hand is applied, and may not change the direction of the portion where the incident portion is provided when the force of the human hand is not applied. good. It is preferable that the adjustment means can be changed up, down, left, and right, but it is preferable that the orientation can be adjusted at least in the left and right directions. In particular, excellent effects are obtained when the display section is provided on the front side of the housing and the adjusting means and the incident section are provided on the rear side of the housing. In particular, when installed on the right side of the dashboard in front of the driver's seat, the left side should face forward so that the display screen of the display unit can be seen easily. In this case, the light-receiving part faces the front right side, making it difficult to receive the light from the speed measuring device 30, which is often transmitted from the front left side of the roadside strip. direction, in the direction of the light from the speed measuring device 30, which is often emitted from the front left side of the roadside strip or the like.

(11-40) Based on the instruction from the user or the light received from the speed measuring device 30, information regarding the location where the monitoring activity by the speed measuring device 30 was performed is transmitted to the server or other vehicle. It is good to have a function. At this time, in addition to the information about the point (for example, the current position information by GPS), it is preferable to have a function to transmit together the monitoring type information indicating that the point has been monitored by light from the speed measuring device 30. .

In addition, it is preferable to provide a function for transmitting information that can distinguish whether the posting of the location where the monitoring activity was performed by the speed measuring device 30 from the user or the automatic posting based on the reception of light from the speed measuring device 30 is also provided. Furthermore, it has a function of receiving information on a point posted to the server where the monitoring activity by the speed measuring device 30 was being performed, and when the own vehicle approaches the received position, the posted speed measuring device 30 monitors the location. It is preferable to provide a function to notify that the location was where an activity was being carried out. At this time, information that can distinguish whether the posting of the point where the monitoring activity was performed by the speed measuring device 30 from the user or the automatic posting by the light reception from the speed measuring device 30 is received together, and the speed is calculated from the user. It is preferable to notify by distinguishing between the posting of the point where the monitoring activity was performed by the measuring device 30 and the automatic posting by light reception from the speed measuring device 30 . "Approaching the vehicle to the received position" should be performed as approaching a distance longer than the detectable distance of the laser beam. For example, if the normal detectable distance of a laser beam is 500 m, it is preferable to determine that the vehicle is approaching the received position at 800 m.

For example, after passing the posted point where the monitoring activity by the speed measuring device 30 was being performed, the user is notified whether or not the monitoring activity by the speed measuring device 30 was being performed, and the user's voice in response to this is performed. A function of detecting a hand operation and transmitting information to the server as to whether or not the monitoring activity by the speed measuring device 30 was being performed at the posted point where the monitoring activity was being performed by the laser speed measuring device. Be prepared. This information is acquired from the server, and information about whether or not the monitoring activity by the speed measuring device 30 is being performed is added to an object approaching the point, and the information is notified, or the notification itself is not performed. It is preferable to have a function to

Instead of transmitting to a server (for example, transmitting to a server connected to the Internet via a wireless LAN and an LTE wireless LAN router), or in conjunction with this, broadcasting to the surroundings by radio waves, radar detectors may communicate the information described above. Such information may be transmitted by relaying it between radar detectors of each vehicle by P2P or the like.

(11-41) Regarding (11-40), the idea of automatically posting and sharing the data of the light receiving location from the speed measuring device 30 or the receiving location of the radar type radio wave is accurate reception without misrecognition. It is thought that it is a function that cannot be demonstrated unless there are many users who register and use the network. Therefore, if a system for posting on an SNS (Social Network System) can be used and seen by many users, the electronic device 10 or its provider (company) can be appealed as a result, which can lead to purchasing power. Under the idea that it is not possible, it may be configured as follows. The SNS is, for example, Twitter (registered trademark), Instagram (registered trademark), or other SNS.

When the control unit 11 of the electronic device 10 starts receiving pulsed light corresponding to the optical method or receiving radio waves corresponding to the radar method, the control unit 11 acquires an image captured by the vehicle-mounted camera (for example, the vehicle-mounted camera 50), and acquires the acquired image. Start the image recognition process of the image. This image recognition processing is processing for recognizing the image of the speed measuring device included in the captured image. Algorithms for image recognition processing are preferably performed using known image recognition processing. For example, the image data representing the images of the speed control devices of the optical system and the radar system are stored in advance in the storage unit 18 . Using this image data, the control unit 11 performs image recognition processing by, for example, a pattern patching method. Here, the control unit 11 preferably narrows down the image data to be used for image recognition processing according to the form of light reception of pulsed light or the form of reception of radio waves. For example, when the pulsed light is received, the control unit 11 narrows down the image data to the image data of the optical speed measuring device stored in the storage unit 18, and when the radio wave is received, the image data stored in the storage unit 18 is selected. It is better to narrow down to the image data of the radar type speed measuring device. The control unit 11 compares the captured image of the vehicle-mounted camera 50 with the image indicated by the narrowed down image data, and determines whether or not the speed measuring device is captured based on the value indicating the degree of similarity (here, the score value). to decide. The score value indicating the degree of similarity, for example, indicates a larger value as the degree of similarity is higher. A score value is calculated by a well-known algorithm. For example, when the score value is equal to or greater than the threshold value, the control unit 11 determines that the speed measuring device is present, and performs posting processing. For example, when the score value is less than the threshold value, the control unit 11 determines that the speed measuring device does not exist, and does not perform the posting process. If the vehicle is not equipped with an image recognition camera such as the in-vehicle camera 50, the control unit 11 detects the related public enforcement information or enforcement PoI when the light reception of the pulsed light or the reception of the radio waves is started. (Point of Interest, i.e. control point). The control unit 11 performs the posting process when determining that there is one of these, and does not perform the posting process when determining that there is none.

The control unit 11 performs posting processing of posting information such as position information indicating the position of the speed measuring device to the server via the communication unit 17 . For example, the control unit 11 receives the latitude/longitude, date and time as position information indicating the position of the speed measuring device, the type of the electronic device 10 (for example, manufacturer name, model or model number), the name of the road on which the vehicle is running, and the current position. Data in a predetermined format such as CSV (Comma-Separated Values) including addresses, comments for SNS, etc. is generated and uploaded to the server. The SNS comment is, for example, a summary of the date and time, the type of the electronic device 10, the name of the road on which the vehicle is traveling, the address of the current position, and the like. In order to facilitate handling of the data sent from the electronic device 10, the server may store the data sorted by date and time, for example. The server automatically posts to the SNS. The server should devised ways to increase the number of followers (the number of so-called "likes") that agree with the posted content. For captions and comments, comments for SNS are used.

The control unit 11 of the electronic device 10 periodically monitors the server, downloads the posted data when the latest data is updated, and displays and outputs the posted data on a map or as a telop. This display can be turned on/off, and only the latest information may be displayed so that only those who want to see the information can see it. Here, for example, "It is Wakkanai City, Hokkaido, but an icon and a telop on the map, national highway No. 238, portable Orbis is under control!" is output as a display.

(11-42) With regard to the configuration of (11-41), the control unit 11, after receiving the pulse light, when the light reception is interrupted, or when the forward vehicle is recognized from the image of the vehicle-mounted camera 50, It is preferable to continue the control for informing the presence of the speed measuring device 30 . In this way, even if the pulsed light from the speed measuring device 30 is blocked by the forward vehicle, the presence of the speed measuring device 30 can be notified.

(11-43) With regard to the configuration of (11-41), the control unit 11 controls the control unit 11 when the intensity of the received light pulse is higher than a predetermined level and is suddenly no longer detected (for example, when the position of the speed measuring device is passed). ), it is preferable to upload a captured image (for example, a photograph) taken just before the detection was lost (for example, just before passing the position of the speed measuring device) to the server together with the position information. In this way, the server side can determine whether it is a false alarm or a true alarm by looking at the image. It is even better to upload the captured image of the rear camera to the server after the detection is stopped (for example, after passing). The control unit 11 may cause another vehicle device (the electronic device 10 or an in-vehicle camera) to take an image of the position of the speed measuring device and automatically upload the image. At this time, the electronic device 10 may distribute the positional information of the speed measuring device to a model that does not have a function of receiving pulsed light, take a picture, and upload it. It is possible to collect image information such as when to stop crackdowns from many existing electronic devices. At this time, if the model has a function of receiving pulsed light, it is recommended to upload the laser reception level as well.

(11-44) The control unit 11 inserts the logo or characters of the manufacturer of the electronic device 10 into the image of (11-43) or its description, and says, "I was saved by the radar of XX." ○ is the manufacturer's name) and you can post on SNS. The type (for example, model number) of the electronic device 10 may also be entered here. The control unit 11 may also enter the vehicle speed at that time (for example, only when the speed is below the speed limit). The control unit 11 may also enter the speed limit of the road. The control unit 11 may also enter facility information in the vicinity. For example, the control unit 11 makes a post such as "I passed the laser orbis near △△ with a speed limit of 60 km at a speed of 55 km/h. I was saved by the radar of 〇〇." The image may be a screen shot of the screen of the electronic device 10 itself. In particular, it is preferable that the display screen itself is obtained by superimposing an image related to the notification of the electronic device 10 on the captured image of the drive recorder. At this time, an image simulating the part where the outer frame part (model name and function name) of the radar screen is written outside the display screen (that is, the housing part when the electronic device 10 is viewed from the front is displayed. image of the region).

(11-45) The electronic device 10 may upload to the server via the network and share the location where the notification by the cancellation function corresponding to the radar system has been canceled. In this way, it is possible to prevent erroneous reporting from the beginning of automatic doors near roads on which other users travel for the first time.

(11-46) Radar detectors may react to vending machines. Therefore, when the electronic device receives a predetermined radio wave (radar wave) while the vehicle is parked, it displays the message "Is there a vending machine nearby?" . The electronic device transmits the posted data to the server. The server aggregates the posted data and distributes them as vending machine points or the like as sources of false alarms.

(11-47) By connecting the electronic device 10 to a mutual communication compatible drive recorder, power supply to the drive recorder, video/audio signals, operation signals, GPS information and OBDII information can be communicated. In addition, it is equipped with an interlocking mode that automatically switches to the external input display when approaching the speed measuring device. When approaching the speed measuring device, the position of the camera of the speed measuring device (for example, 3 fixed patterns of top/left/right) is highlighted in red and notified. The speed warning point alerts you to the point where the maximum speed changes, which is likely to be cracked down. In addition, it is equipped with a normal image / mirror image switching function, and the drive recorder can also be used as a back camera.

[12. Other embodiments]
As for the configuration for widening the light acceptance angle of the light receiving element by combining the above-described lenses or mirrors, for example, the following configuration is adopted. FIG. 72 is a diagram showing the configuration of the electronic device 10A of the present embodiment as seen from the upper right direction on the back side. 73A and 73B are six views showing an example of the external configuration of the electronic device 10A of the present embodiment. FIG. 73 shows a front view, a top view, a right side view, a bottom view, a left side view, and a rear view of the electronic device 10A. Hereinafter, [7. Mechanism of electronic device 10], the same elements as described in [7. Mechanism of the electronic device 10], and description thereof will be omitted as appropriate.

A housing 100A of the electronic device 10A is divided into a first housing 1001 located on the front side and a second housing 1002A located on the rear side. A display unit 13 , a light emitting unit 23 and an illuminance sensor 201 of the sensor unit 20 are provided on the front surface of the first housing 1001 . The display area of the display unit 13 is positioned in the front opening of the first housing 1001 . A speaker 14 is provided so as to output sound from the upper end surface of the second housing 1002A. A mounting portion 21 (that is, an SD card slot) for mounting an SD card is provided on the right end face of the housing 100A. A condensing lens 300 is provided in the upper right portion of the rear surface of the housing 100A. A power switch 221 and a DC jack 222 of the power supply section 22 are provided at the lower left portion of the rear surface of the housing 100A.

A lens holder 1006 is provided on the rear surface of the second housing 1002A. The lens holder 1006 constitutes a window, which is an opening through which the inside and outside of the housing 100A are communicated. The lens holder 1006 has an elliptical shape with a long axis in the horizontal direction and a short axis in the vertical direction when viewed from the rear side of the housing 100A. When the electronic device 10A is installed in the vehicle, the horizontal direction corresponds to the width direction of the vehicle, and the vertical direction corresponds to the height direction of the vehicle.

Condensing lens 300 is fitted in lens holder 1006 . The condenser lens 300 is a part of the light receiving section 400 and is provided at a position corresponding to the light incident section described in the above embodiments. The lens holder 1006 and the condenser lens 300 are provided at a position near the upper right side of the second housing 1002A when viewed from the rear surface of the second housing 1002A. For example, the condensing lens 300 is arranged on the rear surface of the housing 100A at least above the center in the vertical direction and at least on the left side with respect to the traveling direction of the vehicle when viewed from the driver's seat side of the own vehicle. be done. Condensing lens 300 is positioned relatively above the rear surface of second housing 1002A, and is placed on the side of the road where speed measuring device 30 is likely to be located, so that light from speed measuring device 30 is received. Because it can be easier. Pulsed light Lout from velocity measuring device 30 is introduced into housing 100A via lens holder 1006 and condenser lens 300 . The condenser lens 300 is entirely made of a material that allows light to pass therethrough. Condensing lens 300 is transparent or translucent. The condenser lens 300 has an aspherical light incident surface, and protrudes further toward the rear side than the rear surface of the housing 100A. The condensing lens 300 is an aspherical lens, the structure of which will be described later in detail. The condenser lens 300 is a lens that transmits at least the pulsed light Lout, and is a translucent or transparent member. This may contribute to exhibiting the attractive design of the electronic device 10A.

FIG. 74 is a diagram showing a state in which the second housing 1002A is removed from the electronic device 10A. FIG. 75 is a diagram showing a state in which the condenser lens 300 is further removed from the electronic device 10A. FIG. 76 is a diagram showing a state where the filter 250 and the shield plate 270 are further removed from the electronic device 10A.

A condensing lens 300 is provided on the second substrate 1030 at a position overlapping the first region Ar3. The condensing lens 300 is designed and manufactured to converge the pulsed light Lout at a predetermined focal length position. The light receiving element 410 receives light condensed by the condensing lens 300 . The light-receiving element 410 is provided on the side of the second substrate 1030 that faces one of the surfaces on the condenser lens 300 side, which is the side on which the first substrate 1010 is arranged in this embodiment. Therefore, the light receiving element 410 receives light that has passed through the translucent portion 1033 provided on the second substrate 1030 . The translucent part 1033 is a rectangular parallelepiped opening here. The light-receiving element 410 may be the same element as the first light-receiving element 122 or the second light-receiving element 124, but differs from the embodiment described above in that there is only one light-receiving element.

Filter 250 is an example of a wavelength selector corresponding to first wavelength selector 121 . The filter 250 is provided between the light receiving element 410 and the condensing lens 300, and selects and transmits light of a specific wavelength λout from the incident light. Filter 250 may be removed in any configuration. The shield plate 270 is a shield made of, for example, aluminum or a conductive material, and is provided in a region surrounding three of the four sides of the translucent portion 1011 . The shield plate 270 is for suppressing the effects of static electricity and the like on the light receiving element 410 and other electronic components.

FIG. 77 is a diagram of FIG. 76 with the second substrate 1030 removed. Light receiving element 410 is housed in shield case 280 . The shield case 280 is provided on the surface of the first substrate 1010 that faces one surface on the condenser lens 300 side, and covers the entire light receiving element 410 . Such shield case 280 performs the same function as shield case 1031 .

In this way, the light receiving element 410 is arranged on the front surface of the electronic device 10A on the second substrate 1030 . By doing so, the shield can be more reliably provided by a simple method, and since the first substrate 1010 exists between the light receiving element 410 and the condenser lens 300, the space corresponding to the focal length can be effectively used. . As a result, the housing 100 as a whole contributes to the realization of compactness. A similar effect can be expected by arranging the light receiving element 410 on the front surface or the rear surface of the electronic device 10A of the first substrate 1010 .

78A and 78B are six views showing an example of the configuration of the condensing lens 300. FIG. Condensing lens 300 is an aspherical lens that condenses reflected light from speed measuring device 30 and forms an image at a predetermined condensing position. The condenser lens 300 is an aspherical lens having an aspherical light incident surface. Condensing lens 300 includes an entrance surface 310 and an exit surface 320 . The incident surface 310 includes an aspherical curved surface 311 on which the pulsed light from the speed measuring device 30 is incident. Incidence surface 310 includes curved surface 311 that is convex along the width direction of the vehicle. The curved surface 311 protrudes most at the center in the width direction of the vehicle. Moreover, the curved surface 311 becomes convex along the height direction of the vehicle. The curved surface 311 protrudes most at the center in the height direction of the vehicle. The curved surface 311 has, for example, a parabolic shape, but may have any other shape as long as it is a smooth curved surface.

The curved surface 311 has a length La in the width direction of the vehicle greater than a length Lb in the height direction. The curvature of the curve of the condenser lens 300 in the width direction of the vehicle is smaller than the curvature of the curve in the height direction of the vehicle. Thus, the condenser lens 300 bends more gently in the width direction of the vehicle than in the height direction of the vehicle.

The exit surface 312 is a surface from which light incident on the entrance surface 310 (especially the curved surface 311) exits. The output surface 312 is a flat surface. However, the output surface 312 may be curved.

Condensing lens 300 guides the pulsed light from velocity measuring device 30 to the position of light receiving element 410 . The arrangement position is set so that the light is condensed at the position of the light receiving element 410 according to the characteristics of the condenser lens 300 .

A flat surface 313 is provided around the curved surface 311 of the incident surface 310 . Leg portions 314A and 314B are provided on a pair of side portions of the flat surface 313 facing each other. Legs 314 A and 314 B are fixed to first substrate 1010 . Note that the flat surface 313 and the legs 314A and 314B are not essential components.

Since the condensing lens 300 configured as described above is an aspherical lens, spherical aberration can be suppressed when an image is formed on the light receiving element 410 compared to the case where a spherical lens is used. Spot sizes obtained with aspheric lenses can be several orders of magnitude smaller than with spherical lenses. Based on this way of thinking, it is conceivable that the condenser lens may be realized by a combination of a plurality of lenses having a smaller spherical aberration than a spherical lens.

When the speed measuring device 30 is on the shoulder of the road, the pulsed light Lout is incident from the front side when the distance between the speed measuring device 30 and the vehicle is large, but the pulsed light Lout is incident from the left as the vehicle approaches. For this reason, the condenser lens 300 has a horizontal length La larger than Lb so that light can be received at a wider acceptance angle in the width direction of the vehicle than in the height direction of the vehicle. For example, the condensing lens 300 can condense light incident at an incident angle of 40 degrees on both sides in the width direction and 20 degrees on both sides in the height direction. By relatively shortening the length Lb of the curved surface 311 in the height direction, the collection of light other than the pulsed light Lout is reduced. If the purpose is to receive a wide range of incident angles in the width direction of the vehicle, the curved surface 311 may be flat along the height direction of the vehicle.

It is preferable that the light receiving element 410 is not arranged at the focal length position of the condenser lens 300, but is arranged at a position shorter than the focal length. Since the curvature of the condenser lens 300 is small and bends the light greatly, the light around the condenser lens 300 tends to gather near the center of the optical axis before the focal length. By arranging the light receiving element 410 in front of the focal length, more light can be condensed. Light coming from a direction with a steep angle also passes near the center of the optical axis before the focal length position. By placing the light receiving element 410 in front, it is possible to receive light with a wide incident angle.

The condensing lens 300 has the characteristic that it can detect even if the pulsed light from the speed measuring device 30 is weak. As a result, the electronic device 10 can detect the presence of the speed measuring device 30 over a very wide range and at a long distance, and can quickly notify the presence of the speed measuring device 30 . As in the above-described embodiments, a visible light cut filter may be provided on the incident surface side of the condenser lens 300, or the condenser lens 300 may be formed of a material having a visible light cut function. This reduces the influence of visible light. Condensing lens 300 may be what is called an aspheric lens (espheric lens).

Condensing lens 300 may be arranged such that its optical axis is parallel to the front-rear direction of the vehicle, or may be inclined. In this case, if the optical axis of the condenser lens 300 is tilted to the front left side with respect to the longitudinal direction of the vehicle, the pulsed light Lout from the speed measuring device 30 may be more likely to be received.

The inventors conducted an experiment to confirm that light with a wide angle of incidence can be received with an aspherical lens. As shown in FIG. 79(a), a commercially available transparent acrylic half-round bar (radius 6.35 mm) was ground down to a thickness of 3 mm and polished. A photodiode (PD) was used as a light receiving element. The back focal length is 3 mm, and the lens is placed 1 mm above the light receiving element in order to widen the angle of view on the upper side. FIG. 79(b) is a table showing the relationship between the light source direction [deg] and the ATT value [db] in this case. As a result, it was confirmed that the acceptance angle in the curved horizontal direction was larger than the acceptance angle in the vertical direction.

FIG. 80 is a diagram showing an example of the electrical configuration of the light receiving section 400. As shown in FIG. The light receiving element 410 is a photodiode here. The cathode of the light receiving element 410 is connected to the power supply line on the high potential side, and the anode of the light receiving element 410 is connected to one end of the resistor R3. The other end of resistor R3 is grounded. The input end of the amplifier AMP1 is commonly connected to the anode of the light receiving element 410 and one end of the resistor R3. A plurality of amplifiers AMP2, . . . AMPN are connected in series after the amplifier AMP1. The value of N is arbitrary. However, the amplifiers AMP1 to AMPN are desirably designed to amplify signals in the wavelength region of the specific wavelength λout. The output terminal of AMPN is connected to one input terminal (in this case, the input terminal on the positive electrode side) of the differential amplifier 430, and the signal SIGN is input. A threshold level Thn is input to the other input terminal of the differential amplifier 430 (here, the negative input terminal). Differential amplifier 430 functions as a comparator that outputs a signal corresponding to the difference between signal SIGN and threshold level Thn. Differential amplifier 430 outputs a signal of positive potential when signal SIGN exceeds threshold level Thn and of negative potential when signal SIGN is below threshold level Thn. Control unit 11 detects the presence of speed measuring device 30 based on the difference between signal SIGN and threshold level Thn.

The control unit 11 may detect the presence of the speed measuring device 30 in the same manner as in the embodiment described above. For example, when the wavelength of the pulsed light is 905 nm, the control unit 11 may include a pulse interval of 80 ms (or a range of less than 80 ms and/or greater than 80 ms within a certain range from the reference pulse interval). It is preferable to perform control to report the presence of the speed measuring device 30 when the light is received. Alternatively, when the control unit 11 receives pulsed light with a pulse width (light emission time) of 20 ms (or/and a range of less than 20 ms or more than 20 ms, which is within a certain range from the reference pulse width). In addition, it is preferable to perform control to report the presence of the speed measuring device 30 . The controller 11 may notify the presence of the speed measuring device 30 when the pulsed light of the light of the specific wavelength λout is received at least once. In this way, when there is a possibility that the velocity measuring device 30 exists, its existence can be quickly notified to the user.

[13. [12. Modification of [Other Embodiments]]
(13-1) As shown in FIG. 81, the electronic device 10A may have a reflecting section 500. FIG. The reflecting section 500 is provided at a position different from the optical path from the condenser lens 300 to the light receiving element 410 . Reflecting part 500 includes a reflecting surface that reflects at least part of the light emitted from condenser lens 300 toward light receiving element 410 . The reflecting part 500 has a portion surrounding the optical path, and is preferably formed in a cylindrical shape surrounding the entire circumference of the optical path so as to increase the reflected light rate. The diameter of the reflecting portion 500 decreases as it approaches the light receiving element 410 . In this way, the amount of light received by the light receiving element 410 from the speed measuring device 30 is increased, so that the presence of the speed measuring device 30 can be notified more reliably.

For example, the reflecting section 500 may be arranged by bending a mirror-surface reflecting sheet on the substrate surface side so that the light-receiving element 410 side is inside and bent vertically in a semicylindrical shape. For example, it is preferable to form a cylinder between the incident part and the light receiving element 410 and to make the inside of the cylinder a mirror surface (or a scattering surface).

(13-2) As shown in FIG. 82, the electronic device 10A may have a reflecting section 600. FIG. Reflector 600 is provided on the optical path from condensing lens 300 to light receiving element 410 . Reflecting section 600 reflects at least part of the light emitted from emission surface 320 toward light receiving element 410 using total reflection of light. The reflecting part 600 is a medium having the shape of a pillar, a quadrangular prism, a cone, or a pyramid provided between the condenser lens 300 and the light receiving element 410, and reflects light such as an infrared transmitting resin, glass, or an optical fiber. It is preferable to use a member having a function. The reflecting part 600 may be made of a material that transmits light of a specific wavelength. The reflector 600 may be implemented using total internal reflection above the critical angle. For total reflection at the critical angle, the side of the reflector 500 may have a flat shape, but it should have a non-flat shape such as jagged edges. It is also conceivable to direct the outward light from the condenser lens 300 inward. In this way, the amount of light received by the light receiving element 410 from the speed measuring device 30 is increased, so that the presence of the speed measuring device 30 can be notified more reliably.

(13-3) The vertical center position of the condenser lens 300 may be shifted upward from the light receiving element 410 . This is to make the screen of the main body easy to see, so that the light can be properly incident on the light receiving element 410 even when the upper side of the screen is tilted toward the back.

This configuration is related to "widening the angle of view on the upper side" described in FIG. In short, in the vertical direction, the sensitivity to pulsed light is higher from above than from below. When such a configuration is adopted in the electronic device 10A, when the display unit 13 (main body screen) is installed obliquely upward so that it can be clearly seen from the driver's car, the upper part (that is, the center in the vertical direction) with good sensitivity Since the upper portion) is nearly horizontal, it is easy to receive the pulsed light Lout.

(13-4) As shown in FIG. 83, a collision warning system 700 may be provided that emits light toward the windshield 42 of the vehicle. Collision warning system 700 is located, for example, on or around windshield 42 . The collision warning system 700 emits light L1 having a predetermined wavelength toward the front of the vehicle and receives the reflected light to detect the presence of an object ahead (for example, another vehicle or a building such as a wall). , the distance to the object is detected and notified to the user. When the collision warning system 700 is in operation, the electronic device 10A may receive disturbance light L2 including reflected waves from an object in front or the windshield. In this case, depending on the wavelength of disturbance light L2, the light from collision warning system 700 may be misidentified as pulsed light Lout.

FIG. 84 is a graph showing an example of temporal changes in the level of light received by the light receiving section 400. FIG. FIG. 84 shows a case where the vehicle is approaching speed measuring device 30 and the level of pulsed light Lout is gradually increasing. The level of ambient light L2 indicates the level of light caused by collision warning system 700. FIG. In this example, when the threshold level Thn is set to Th1, the level of the ambient light L2 is below the threshold level Th1 and the level of the pulsed light Lout is above, so there is no problem in detecting the pulsed light Lout. However, when the threshold level Th2 is set, both the level of the disturbance light L2 and the level of the pulsed light Lout exceed the threshold level Th2. In this case, even if an attempt is made to detect the velocity measuring device 30 on the basis of the pulse interval, it cannot be detected. Although the threshold level Thn may be optimally set, the setting may be difficult because the light level of the collision warning system 700 differs depending on the vehicle type and model. Therefore, the control unit 11 performs control to notify the presence of the speed measuring device 30 when the level of the received light of the specific wavelength is equal to or higher than the threshold level, and performs control to change the threshold level.

FIG. 85 is a diagram showing an example of the electrical configuration of the light receiving section 400. As shown in FIG. In this example, the circuit configuration between control section 11 and differential amplifier 430 is different from the configuration in FIG. One end of each of the resistors R41, R42, and R43 is connected to each of the three terminals of the control section 11. As shown in FIG. The other ends of the resistors R41, R42, and R43 are connected to a power supply line Vcc that applies a fixed voltage via a resistor R44. The control unit 11 selectively outputs a 1-bit signal indicating either "0" (low level) or "1" (high level) from three terminals to which the resistors R41, R42, and R43 are respectively connected. do. The threshold level Thi changes according to this signal level. Here, since the threshold level Thi is adjusted with a 3-bit signal, there are eight possible levels for the threshold level Thi. The level of the threshold level Thi changes according to this signal level. Here, "000" is the smallest, and the threshold level is Th1. Th2, . . . , Th8 increase in order.

During a predetermined period such as when the vehicle is running or when the engine is on, the control unit 11 increases the threshold level in order from Th1. Here, in the example of FIG. 86, the control unit 11 repeatedly receives the disturbance light L2 at high intervals, and therefore determines that disturbance light exists. In this case, the controller 11 raises the threshold level to Th2. Here, since the controller 11 repeatedly receives the disturbance light L2 at high intervals, the threshold level Th2 is not optimized. In this case, it is determined that disturbance light exists, and the control unit 11 raises the threshold level to Th3. Then, the control unit 11 determines whether or not to repeatedly receive the disturbance light L2 at high intervals. In this case, the control unit 11 does not repeatedly receive the disturbance light L2 at high intervals, so the threshold level is optimized. Even if the threshold level is raised to Th3, if the ambient light L2 is repeatedly received at a high frequency, the controller 11 raises the threshold level to Th4. Subsequent control is also the same.

After setting the threshold level, the control unit 11 performs this adjustment at a predetermined timing. This timing is, for example, timing at predetermined intervals. At the adjustment timing, the control unit 11 lowers the set threshold level Thi by one step to Thi-1. When the controller 11 repeatedly receives the disturbance light L2 at a high frequency, it raises the threshold level Thi-1 by one step and resets it to the threshold level Thi. When the disturbance light L2 is not repeatedly received at high intervals, the control unit 11 further lowers it by one step to Thi-2. When the controller 11 repeatedly receives the disturbance light L2 at high intervals, the controller 11 raises the threshold level Thi-2 by one step, returns it to Thi-1, and sets it to this threshold level. If the disturbance light L2 is not repeatedly received at high intervals, the controller 11 further lowers the threshold level to Th-3. Subsequent control is also the same. In this way, the threshold level can always be optimized. Since the circuit has noise caused by input noise of the amplifier and the like, it is preferable that the resistors R41 to R44 are set to such an extent that the threshold level Th1 exceeds the level of this noise NS. Further, the threshold levels Th1 to Th8 may not be equally spaced, and the higher the threshold level, the larger the interval, or the lower limit and upper limit may be small and the intermediate level may be large. Also, the number of steps (the number of resistances) of the threshold level is not limited to this, and may be less than eight steps or more than eight steps. Also, the configuration for making the threshold level Thi variable may be a configuration other than this.

FIG. 87 is a diagram showing an example of a modification of the electrical configuration of the light receiving section 400. As shown in FIG. As described above, when the control unit 11 variably sets the threshold value, a period in which light is repeatedly received at a high frequency occurs with a certain period. Therefore, as shown in FIG. 87, the output terminal of the amplifier AMPN and the input terminal of the differential amplifier 430 are connected to one input terminal (in this case, the positive input terminal) of the differential amplifier 440, and the signal SIGN is applied to the other input terminal. The threshold level Thi+1 may be input to the terminal (in this case, the negative input terminal). The method of defining the threshold level Thi+1 may be the same as the method of defining the threshold level Thi. An output terminal of the differential amplifier 440 is connected to the control section 11 . The control unit 11 sets the threshold level so that the level from the differential amplifier 440 is high and the level from the differential amplifier 430 is low, and does not change the threshold level during this period. Then, the control unit 11 raises the threshold level when both are at low level, and lowers the threshold level when both are at high level. It should be noted that it is not limited to the collision warning system 700, and it is also possible to deal with light from other devices and other disturbance light. Disturbance light that can be dealt with includes infrared light from remote controllers, laser light from road survey equipment, laser light from automatic brakes emitted from other vehicles, and sunlight. , Laser light from road surveying equipment, etc. is suppressed from being misidentified as pulsed light from the speed measuring device, and the control unit functions to detect the laser light of automatic braking emitted from other vehicles and the pulsed light from the speed measuring device. It is suppressed to be misidentified as

[14. Other examples of electronic devices]
FIG. 88 shows [12. Other Embodiments] is a diagram showing the configuration of the appearance of an electronic device 80A that employs the configuration described in . 89 and 90 are six views showing an example of the external configuration of the electronic device 80A. FIG. 89 shows a front view, a top view, a right side view, a bottom view, and a left side view of the electronic device 80A. FIG. 90 shows a rear view of the electronic device 80A. A condenser lens 300 is provided on the rear side of the electronic device 80A.

91, 92 and 93 are diagrams showing the internal configuration of electronic device 80A. The electronic device 80A is different from the electronic device 80 in that the light receiving element 843 is formed on the fourth substrate 840 so as to receive pulsed light. The light receiving element 843 may have the same configuration as the light receiving element 410 . The light receiving element 843 is provided on the surface of the fourth substrate 840 that faces one surface on the condenser lens 300 side. Therefore, the light receiving element 843 receives light that has passed through the translucent portion 842 provided on the fourth substrate 840 . The translucent part 842 is a rectangular parallelepiped opening here. Filter 870 performs a similar function as filter 250 . Shield plate 880 performs a similar function as shield plate 270 . The light receiving element 843 is housed in a shield case 890 . Shield case 890 performs the same function as shield case 280 . Such an electronic device 80A can also obtain the same effect as the electronic device 10A.

[15. Other embodiments]
As for the configuration in which lenses or mirrors are combined to widen the light acceptance angle of the light-receiving element, for example, an electronic device having the following configuration may be provided. FIG. 94 is a diagram showing the external configuration of an electronic device 900 of this embodiment. FIG. 94(a) is a diagram of electronic device 900 viewed obliquely from the upper right direction on the front side of electronic device 900. FIG. FIG. 94B is a diagram of electronic device 900 viewed obliquely from the upper right direction on the rear side of electronic device 900 . 95A and 95B are six views showing an example of the external configuration of the electronic device 900. FIG. FIG. 95 shows a front view, top view, right side view, bottom view, left side view, and rear view of electronic device 900 .

Electronic device 900 has a rectangular parallelepiped appearance that is longer in the width direction than in the vertical direction. Electronic device 900 is of a size and weight that can be easily carried by a user. The electronic device 900 has, for example, a width (horizontal length) of 48 mm, a height (vertical length) of 34 mm, a depth of 13 mm, and a weight of 16 g. A housing 900A of the electronic device 900 is divided into a first housing 901 positioned on the front side and a second housing 902 positioned on the rear side. A light emitting unit 911, an operating unit 912, and a sound emitting unit 913A are provided on the front side of the first housing 901. As shown in FIG.

The light emitting unit 911 emits predetermined light. The light emitting section 911 includes, for example, a light emitting diode. Light emitting unit 911 emits light according to the operating state of electronic device 900 . The light emitting unit 911 is provided at a lower right position of the first housing 901 when viewed from the front side. Light emitting unit 911 emits white light when electronic device 900 is in a standby state. Light emitting unit 911 emits blue light when electronic device 900 is in operation. The light emitting unit 911 emits red blinking light when the electronic device 900 is receiving the pulsed light Lout. Note that the relationship between the operating state and the light emission state is not limited to this, and the light emission mode such as the light emission color and light emission timing (for example, the frequency of blinking and the number of times of blinking) can be modified in various ways.

An operation unit 912 receives user operations. The operation unit 912 is provided at a lower right position of the first housing 901 when viewed from the front side, and is positioned to the right of the light emitting unit 911 . The operation unit 912 functions as a volume button here. The operation unit 912 is operated by the user, for example, when adjusting the volume of an alarm sound or other sounds or when muting an alarm sound emitted when the pulsed light Lout is received. The operation unit 912 accepts a pressing operation here, but may be an operation unit that accepts slide, touch, or other operations.

Sound emitting unit 913A emits a predetermined sound. The sound emitting unit 913A has a plurality of holes provided in a position near the upper right of the first housing 901 when viewed from the front. The sound emitting section 913A outputs sound through the plurality of holes. The sound emitting unit 913A outputs alarm sounds and other sounds.

A DC jack 914 for receiving power input from a power supply is provided on the left side of the housing 900A. For example, a cigar plug cord or a power cable is connected to the DC jack 914 . A mounting portion 917 for mounting a first mounting member 940 and a second mounting member 950 to be described later is provided on the rear surface of the second housing 902 . Thus, the mounting portion 917 is a mounting portion shared by the first mounting member 940 and the second mounting member 950 . The mounting portion 917 is provided near the center of the second housing 902 in the width direction and near the lower end of the second housing 902 when viewed from the rear side. The mounting portion 917 has a pair of grooves 9171 and 9172 . The pair of grooves 9171 and 9172 are provided at a predetermined interval in the width direction of the electronic device 900 and extend vertically. A first mounting member 940 and a second mounting member 950, which will be described later, can be attached to and detached from the pair of grooves 9171 and 9172. As shown in FIG. Note that the first mounting member 940 and the second mounting member 950 may be further fixed to the second housing 902 using fasteners such as screws.

A lens holder 915 is provided on the back surface of the second housing 902 . The lens holder 915 constitutes a window, which is an opening through which the inside and outside of the housing 900A are communicated. The lens holder 915 may have the same shape as the lens holder 1006 described above, and has an elliptical shape with a major axis in the width direction and a minor axis in the vertical direction when viewed from the rear side of the housing 900A. When the electronic device 900 is installed in the vehicle, the width direction corresponds to the width direction of the vehicle, and the vertical direction corresponds to the height direction of the vehicle. The second housing 902 is screwed to the first housing 901 using screws 918 and 919 at both ends in the width direction when viewed from the rear side.

Condensing lens 920 is fitted in lens holder 915 . Condensing lens 920 is part of light receiving section 920A in electronic device 900, and is provided at a position corresponding to a light incident section. Condensing lens 920 may have the same configuration as condensing lens 300 . The lens holder 915 and the condenser lens 920 are provided at a position near the upper right side of the second housing 902 when viewed from the rear side of the second housing 902 . For example, the condensing lens 920 is arranged on the rear surface of the housing 900A at least above the center in the vertical direction and at least on the left side with respect to the traveling direction of the vehicle when viewed from the driver's seat side of the own vehicle. be done. The light from the speed measuring device 30 is received better when the condenser lens 920 is positioned relatively above the rear surface of the second housing 902 and placed on the side of the road where the speed measuring device 30 is likely to be located. Because it can be easier. Pulsed light Lout from velocity measuring device 30 is introduced into housing 900A via lens holder 915 and condenser lens 920 .

FIG. 96 is a diagram showing a state in which the second housing 902 is removed from the electronic device 900. FIG. FIG. 97 is a diagram showing a state in which the condenser lens 300 is further removed from the electronic device 900. FIG. FIG. 98 is a diagram showing a state in which the first housing 901 is removed from the electronic device 900. FIG.

A substrate 930 is provided inside the housing 900A. The substrate 930 has a substantially rectangular shape that is longer in the width direction than in the vertical direction, and has substantially the same shape and size as the front surface of the first housing 901 and the rear surface of the second housing 902 . A light receiving section 920A (condensing lens 920) is provided on the substrate 930 at a position nearer to the upper right when viewed from the rear side. The condensing lens 920 is designed and manufactured to converge the pulsed light Lout at a predetermined focal length position. The light receiving element 931 receives light condensed by the condensing lens 920 . The electronic device 900 has a light receiving element 931 as one light receiving element. The light receiving element 931 may have the same configuration as the light receiving element 410 . The light receiving element 931 is provided on the surface of the substrate 930 opposite to the surface on which the condenser lens 920 is present, which is the front surface of the electronic device 900 in this embodiment. Therefore, the light receiving element 931 receives light that has passed through the translucent portion 932 provided on the substrate 930 . The translucent part 932 is a rectangular parallelepiped opening here.

The filter 933 may have the same configuration as the filter 250 and is an example of a wavelength selection section corresponding to the first wavelength selection section 121 . The filter 933 is provided between the light receiving element 931 and the condensing lens 920, and selects and transmits light of a specific wavelength λout from the incident light. Filter 933 may be removed in any configuration. The shield plate 934 is a shield made of, for example, aluminum or a conductive material, and is provided in a region surrounding three of the four sides of the translucent portion 932 . The shield plate 934 is for suppressing the effects of static electricity on the light receiving element 931 and other electronic components. The light receiving element 931 is housed in a shield case 935 . The shield case 935 is provided on the surface of the substrate 930 opposite to the surface on which the condenser lens 920 exists, which is the front surface of the electronic device 900 in this embodiment, and covers the light receiving element 931 entirely. . Such shield case 936 performs the same function as shield case 280 .

Thus, the light receiving element 931 is arranged on the surface of the substrate 930 on the front side of the electronic device 900 . By doing so, the shield can be more reliably provided by a simple method, and since the substrate 930 exists between the light receiving element 931 and the condenser lens 920, the space corresponding to the focal length can be effectively used. As a result, the electronic device 900 as a whole contributes to the realization of compactness.

The speaker 913 forms part of the sound emitting unit 913A and outputs sound. Speaker 913 , operation section 912 and DC jack 914 , and light receiving section 920 A (light receiving element 921 ) are electrically connected to control section 916 . The control section 916 controls each section of the electronic device 90, and is, for example, a computer including an arithmetic processing circuit and a memory. The controller 916 may be provided on the surface of the substrate 930 on which the condenser lens 920 is present, or on the opposite surface. The control unit 916 performs the above-described [12. Other Embodiments], it is preferable to perform notification according to the reception of the pulsed light Lout in the same manner as the control unit 11 described above. Further, when receiving the pulsed light Lout, the control unit 11 causes the light emitting unit 911 to emit red light, or emits an alarm sound using the speaker 913 . The control unit 916 controls the output of the alarm sound according to the result of volume adjustment according to the operation of the operation unit 912 . The control unit 916 may perform control other than the control of the display unit in the same manner as in the other embodiments described above.

Electronic device 900 configured as described above is attached to a vehicle by selectively using first attachment member 940 and second attachment member 950 . The first attachment member 940 is a member for attaching the electronic device 900 to the dashboard, and is also called a dashboard attachment bracket. The second mounting member 950 is also called a suspended mounting stay.

FIG. 99 is a diagram showing how the electronic device 900 is attached to the dashboard using the first attachment member 940. FIG. FIG. 99A is a diagram of electronic device 900 viewed obliquely from the upper right side of the front side of electronic device 900 . FIG. 99(b) is a view of the electronic device 900 viewed obliquely from the upper right direction on the rear side of the electronic device 900. FIG. FIG. 100 is a diagram showing the external configuration of the first mounting member 940. As shown in FIG. 101A and 101B are diagrams illustrating a method of mounting electronic device 900 using first mounting member 940. FIG.

The first mounting member 940 includes a pedestal portion 941 , a socket portion 942 , a ball stud 943 and a mounting portion 944 . The pedestal part 941 is a part attached to the dashboard of the vehicle. The bottom surface of the pedestal portion 941 is attached to the dashboard using a fixing member such as an adhesive sheet or double-sided tape disclosed in Japanese Patent No. 5958927 (Fig. 101(a)). The pedestal portion 941 includes a socket portion 942 having a space open on the front side. The ball portion of the ball stud 943 is attached to the socket portion 942 . A ball joint mechanism is configured by the socket portion 942 and the ball stud 943 attached to the socket portion 942 . The ball stud 943 receives an external force and changes its posture vertically and horizontally while attached to the socket portion 942 . A mounting portion 944 is provided at a position on the front side of the ball stud 943 . The mounting portion 944 is mounted on the mounting portion 917 of the electronic device 900 . The mounting portion 944 has a pair of protrusions 9441 and 9442 that protrude on both left and right sides when viewed from the front. The protruding portion 9441 protrudes further to the front side than other portions of the mounting portion 944 and protrudes to the right side when viewed from the front side. The protruding portion 9442 protrudes further to the front side than other portions of the mounting portion 944 and protrudes to the left side when viewed from the front side. The protrusion 9441 is inserted into the groove 9171 and the protrusion 9442 is inserted into the groove 9172 . The mounting portion 944 exists between the pair of groove portions 9171 and 9172 in the electronic device 900 when mounted on the mounting portion 917 . When the mounting portion 917 of the mounting portion 944 is mounted, the protruding portions 9441 and 9442 are moved upward while being inserted into the groove portions 9171 and 9172, respectively (FIG. 101(b)). After this mounting, the pedestal portion 941 is mounted on the mounting portion (mounting surface) of the dashboard (FIG. 101(c)). The attachment is completed in this way, and the electronic device 900 receives an external force and can change its posture vertically and horizontally while attached to the first attachment member 940 (FIG. 101(d)). A user can direct electronic device 900 in a desired direction.

The mounting portion 944 may be configured to change the height of the attached electronic device 900 . The mounting portion 944 is, for example, a curved arm-shaped member, and the height of the electronic device 900 may be changed by rotating the mounting direction by 180 degrees in the vertical direction. For example, the position of electronic device 900 is raised, and the front of electronic device 900 faces slightly upward. The configuration that allows the height of the electronic device to be changed may be a configuration other than this. For example, a pair of projecting portions 9441 and 9442 are provided at positions shifted above or below the center of the mounting portion 944 in the vertical direction. , it is preferably configured so that it can be attached to the electronic device even if it is turned upside down. Attachment using such a first attachment member 940 may be applied to any of the electronic devices described herein. In particular, when applied to an electronic device (eg, electronic device 10) having a display section (eg, display section 13) on the front surface, the position of the display section becomes high and faces slightly upward from the horizontal direction, so the user can It becomes easier for the user to visually recognize the display unit.

FIG. 102 is a diagram showing how the electronic device 900 is suspended in the air using the second mounting member 950 . FIG. 102( a ) is a diagram of electronic device 900 viewed obliquely from the upper right direction on the front side of electronic device 900 . FIG. 102B is a diagram of electronic device 900 viewed obliquely from the upper right direction on the rear side of electronic device 900 . 103 to 105 are diagrams showing the external configuration of the second mounting member 950. FIG. 106A and 106B are diagrams for explaining a method of mounting the electronic device 900 using the second mounting member 950. FIG.

The second mounting member 950 is, for example, a plate-like member made of metal such as aluminum. The second mounting member 950 has a first portion 951 , a second portion 952 and a third portion 953 . The first portion 951 is a plate-like portion. The first portion 951 supports the electronic device 900 by having its upper surface in contact with the bottom surface of the electronic device 900 .

The second portion 952 is a plate-like portion connected to the first portion 951 and substantially perpendicular to the first portion 951 . The second portion 952 is shorter in the width direction than the first portion 951 . The second part 952 supports the electronic device 900 by contacting the back surface of the electronic device 900 with one surface. The second portion 952 has a pair of projecting portions 9521 and 9522 projecting on both left and right sides as viewed from the front side as a portion to be mounted on the mounting portion 917 of the electronic device 900 . The protruding portion 9521 protrudes further to the front side than other portions of the second portion 952 and protrudes to the right side as viewed from the front side. The protruding portion 9522 protrudes further to the front side than the other portions of the second portion 952 and protrudes leftward when viewed from the front side. The projecting portion 9521 is inserted into the groove portion 9171, and the projecting portion 9522 is inserted into the groove portion 9172, thereby being attached to the second portion 952 (FIG. 106(c)).

The second portion 952 further has a notch portion 9523 . The cutout portion 9523 is cut so as not to overlap the condenser lens 920 when the second mounting member 950 is mounted on the electronic device 900 . In this manner, the second portion 952 is configured so as not to cover the condenser lens 920 from the rear side. The notch 9523 may be cut along the outer edge of the lens holder 915, for example. This is because, in this way, the contact area between the second portion 952 and the electronic device 900 is ensured while the second portion 952 does not block the light reception of the light receiving portion 920A. Of course, the cutout portion 9523 may be cut out in another shape as long as it does not interfere with the light reception.

The third portion 953 is a plate-like portion connected to the second portion 952 . The third portion 953 is attached (for example, pasted) to the attachment portion using a fixing member such as double-sided tape with its upper surface as the attachment surface. The third portion 953 may be longer in the width direction than the second portion 952 and longer than the first portion 951 in the width direction. The third portion 953 is configured to be bendable along the boundary portion 9531 and can change its posture with respect to the second portion 952 by receiving an external force. The boundary portion 9531 is a portion that serves as a boundary between the third portion 953 and the second portion 952 . The boundary portion 9531 has a reduced width dimension to facilitate folding, but a member such as a hinge may be provided. The second mounting member 950 is bent according to an external force, and is maintained in the bent state (shape) even after the external force is removed.

At the time of attachment by the user, the posture of the third portion 953 with respect to the second portion 952 may be adjusted according to the shape of the attachment portion in the vehicle, which is the inclination of the windshield in this embodiment. For example, it is preferable to determine the attachment site (attachment location) in advance and adjust the angle by bending the second attachment member 950 so that the electronic device 900 is as horizontal as possible with respect to the road. As shown in FIGS. 106(a) and 106(d), the third portion 953 may be a gap area between the ceiling C2 and the windshield C3 (an area near the upper end of the windshield C3) using double-sided tape. ) is attached to the attachment site C1. In some cases, the gap area can be recognized by the user as a black edge portion. For example, it is preferable that the attachment site C1 is located behind the rearview mirror because the electronic device 900 is hidden behind the rearview mirror for people in the vehicle. When the third portion 953 is formed to be elongated in the width direction, it is easy to secure the adhesion area of the second mounting member 950 to the mounting portion C1, and the electronic device 900 can be fixed more stably. The mounting portion C1, the third portion 953, is fixed to the mounting portion C1 using, for example, double-sided tape. In this way, when the electronic device 900 is attached using the second attachment member 950, the security standards are satisfied. In addition, since electronic device 900 receives pulsed light Lout from speed measuring device 30 at a relatively high position, the reception of light is less likely to be hindered by an obstacle such as a forward vehicle. Furthermore, in certain vehicle types, the portion near the upper end of the windshield of the vehicle may be configured to have a higher light transmittance than the other portions. For this reason as well, the use of the second mounting member 950 makes it easier for the electronic device 900 to receive the pulsed light Lout. Therefore, by mounting using the second mounting member 950, the electronic device 900 can perform more accurate control for issuing an alarm. Moreover, such attachment makes it difficult to see the electronic device 900 from inside or outside the vehicle, which may be desirable in terms of the aesthetics of the vehicle interior. Also, the attachment site may be a site other than the windshield, for example, the back side of the rearview mirror.

[16. Other examples of electronic devices]
In this embodiment, [14. Another Example of Electronic Device] will be described below. 107 to 109 are diagrams showing how the electronic device 80A is attached by hanging in the air using the attachment member 960. FIG. FIG. 107(a) is a view of the electronic device 80A viewed obliquely from the upper right direction on the rear side of the electronic device 80A. FIG. 107(b) is a view of the electronic device 80A viewed obliquely from the upper right direction on the rear side of the electronic device 80A. FIG. 108 is a diagram of the electronic device 80A viewed from below. FIG. 109(a) is a view of the electronic device 80A viewed obliquely from the upper right direction on the rear side of the electronic device 80A when the mounting angle is changed. FIG. 109(b) is a view of the electronic device 80A viewed obliquely from the upper right direction on the rear side of the electronic device 80A when the mounting angle is changed. 110 and 111 are diagrams showing the external configuration of the mounting member 960. FIG. The attachment member 960 includes a portion that can be bent in response to an external force, and the bent state (shape) is maintained even after the external force is removed.

The mounting member 960 is, for example, a plate-like member made of metal such as aluminum. The mounting member 960 has a first portion 961 , a second portion 962 , a third portion 963 , a fourth portion 964 , a fifth portion 965 and a sixth portion 966 . The first portion 961 is a plate-like portion. The longitudinal direction of the first portion 961 corresponds to the depth direction of the electronic device 80A. The length in the longitudinal direction of the first portion 961 is substantially the same as or longer than the length in the depth direction of the electronic device 80A. The upper surface of the first portion 961 and the electronic device 80A are fixed using an adhesive member such as double-sided tape, but a fixture or other method may be used. A sixth part 966 is connected to one end of the first part 961 . The sixth portion 966 is configured to be bendable along the boundary portion 9661 and can change its posture with respect to the first portion 961 by receiving an external force. The boundary portion 9661 is a portion that serves as a boundary between the first portion 961 and the sixth portion 966 . The boundary 9661 has a reduced width dimension to facilitate folding, but may be provided with a member such as a hinge.

107 and 108, the upper surfaces of the first portion 961 and the sixth portion 966 are on the same plane. In this case, the electronic device 80A is supported by contacting the top surfaces of the first portion 961 and the sixth portion 966 with the bottom surface of the electronic device 80A. On the other hand, in the state of FIG. 109, the sixth portion 966 is bent downward by approximately 180 degrees from the state of FIGS. In this case, the electronic device 80A is supported by the contact of the top surface of the first portion 961 with the bottom surface of the electronic device 80A. The reason why two states can be taken in this way will be described later.

The second portion 962 is a plate-like portion that is connected to the first portion 961 and is substantially orthogonal to the first portion 961 . The length in the height direction of the second portion 962 is substantially the same as or longer than the length in the height direction of the electronic device 80A. The second portion 962 may support the electronic device 80A by contacting the front surface of the electronic device 80A with one surface. The third portion 963 is a plate-like portion that is connected to the second portion 962 and that is substantially orthogonal to the second portion 962 . The third portion 963 has a surface substantially parallel to the first portion 961, but the dimension in the longitudinal direction (corresponding to the depth direction of the electronic device 80A) is shorter than the dimension in the depth direction of the first portion 961. The dimensions in the width direction (transverse direction) of the second portion 962 and the third portion 963 are substantially the same. When electronic device 80A is supported such that electronic device 80A is sandwiched from three sides by first portion 961 (and sixth portion 966), second portion 962, and third portion 963, electronic device 80A is supported. It can be expected to hold more stably.

The fourth portion 964 is a plate-like portion connected to the third portion 963 . The fourth portion 964 is configured to be bendable along the boundary portion 9641 and can change its posture with respect to the third portion 963 by receiving an external force. A boundary portion 9641 is a portion that serves as a boundary between the fourth portion 964 and the third portion 963 . The boundary 9641 has a reduced width dimension to facilitate folding, but may be provided with a member such as a hinge.

The fifth portion 965 is a plate-like portion connected to the fourth portion 964 . The upper surface of the fifth portion 965 is attached (for example, pasted) to the attachment portion using a fixing member such as double-sided tape using the upper surface as an attachment surface. The fifth portion 965 is configured to be bendable along the boundary portion 9651 and can change its posture with respect to the fourth portion 964 by receiving an external force. A boundary portion 9651 is a portion that serves as a boundary between the fifth portion 965 and the fourth portion 964 . The boundary 9651 has a reduced width dimension to facilitate folding, but may be provided with a member such as a hinge. The orientation of the fourth portion 964 with respect to the third portion 963 and the orientation of the fifth portion 965 with respect to the fourth portion 964 may be adjusted according to the shape of the mounting portion in the vehicle, and in this embodiment, the inclination of the windshield. .

FIG. 112 is a side view showing how the electronic device 80A is attached to the windshield using the attachment member 960. FIG. FIG. 112(a) shows the case where the tilt angle of the windshield is 30 degrees with respect to the horizontal direction, and FIG. 112(b) shows the case where the tilt angle of the windshield is 60 degrees with respect to the horizontal direction.

In the example of FIG. 112( a ), the upper surface of the sixth portion 966 is positioned flush with the upper surface of the first portion 961 . In addition, the electronic device 80A is arranged on the upper surfaces of the first portion 961 and the sixth portion 966, and arranged as close to the windshield as possible. In this way, when the windshield slopes relatively gently, the electronic device 80A can be placed closer to the windshield. Therefore, the electronic device 80A is more likely to receive the pulsed light Lout than, for example, when the sixth portion 966 does not exist.

On the other hand, in the example of FIG. 112(b), the sixth portion 966 is bent below the first portion 961. As shown in FIG. Electronic device 80A is arranged on the upper surface of first portion 961 and is not in contact with sixth portion 966 . In this way, when the windshield is relatively steeply inclined, the sixth portion 966 retracts the windshield downward, so that the electronic device 80A can be arranged closer to the windshield. Therefore, the electronic device 80A is more likely to receive the pulsed light Lout than, for example, when the sixth portion 966 is not bendable.

Therefore, by mounting using the mounting member 960, the electronic device 80A can perform more accurate control to issue an alarm regardless of the tilt angle of the mounting portion of the vehicle. In addition to this, the use of the mounting member 960 also produces the same effects as the use of the second mounting member 950 . Note that even when the mounting member 960 is configured without the sixth portion 966, the mounting member 960 realizes the function of supporting the electronic device 80A.

[17. Other embodiments]
[15. Other Embodiment], a stay (dashboard mounting stay) capable of fixing the electronic device 900 to the dashboard by being mounted on the mounting portion 917 of the electronic device 900 may be used as the mounting member. As shown in FIG. 113, this stay 970 is made of metal such as aluminum. The stay 970 has a plate-like first portion 971 whose lower surface is attached to the dashboard using a fixing member such as an adhesive sheet or double-sided tape (double-sided tape for main body), and a plate-like second portion perpendicular to the first portion 971 . It has two parts 972 and a pair of projecting parts 973 and 974 projecting from the second part 972 to the left and right sides. The protruding portion 973 protrudes further to the front side than the second portion 972 and protrudes to the right side when viewed from the front side. The protruding portion 974 protrudes further to the front side than the second portion 972 and protrudes leftward when viewed from the front side. The pair of projecting portions 973 and 974 can be mounted in groove portions 9171 and 9172 of mounting portion 917 of electronic device 900, respectively. Note that the stay 970 may be fixed to the second housing 902 of the electronic device 900 using fasteners such as screws.

In addition, [15. Other Embodiments], [16: Other Present Embodiments], and [17: Other Present Embodiments] describe the case where an electronic device having no display unit is attached to a dashboard or suspended. However, the electronic device having the display may be attached to the dashboard or suspended.

FIG. 114 shows six views of the second mounting member 950 described above, and FIG. 115 shows six views of the mounting member 960 described above. 114 and 115, centering on the front view, the top view (plan view) is shown on the top, the left side view is shown on the left, the right side view is shown on the right, and the bottom view is shown below. A rear view is shown in .

[18. Modification]
(18-1) The condenser lens 300 may be a cylindrical lens or a linear Fresnel lens. In the latter case, the condenser lens 300 becomes thin. Also, two cylindrical lenses may be arranged so as to form an image at a point on the light-receiving element, or linear Fresnel lenses may be arranged so as to intersect.

(18-2) In the configuration of (18-1), a filter for extracting and passing light of a specific wavelength may be arranged between the two lenses.

(18-3) In the configuration of (18-1), the focal position of only one lens may be shifted from the position of the light receiving element.

(18-4) APD (avalanche photodiode), MPPC (Multi-Pixel-Photon-Counter), or the like may be used as the light receiving element.

(18-5) The electronic device may emit light with a prism or the like and issue an alarm when the spectrum is received by a light-receiving element at a specific wavelength (for example, 905 nm). Incident light may be treated as a false alarm source.

(18-6) A light receiving section may be provided on the front surface of the electronic device to receive light from behind. For example, it may correspond to a tracking laser (laser from a police car). The electronic device may (a) record the image of the rear camera for 10 seconds before and up to 1 minute after the detection of the rear is stopped, using the light reception of the tracking laser as a trigger. The electronic equipment must (b) change the content of the alarm depending on whether the light is received from the front or the rear. Light may be received by a sensor at the end of the light.

(18-7) When the electronic device receives radar waves a predetermined number of times (eg, 21 times) in one second, the electronic device may issue a predetermined sound (eg, "Gattoo!").

(18-8) The electronic device may recognize the type of Orvis by image recognition of the camera (for example, the vehicle-mounted camera 50) and warn of the type. When the user utters a voice saying "Was it Orbis just now?", the information "Yes" or "No" is returned based on the image recognition result.

(18-9) The electronic device is equipped with optical means (lens, etc.) for condensing light so that the half-value angle of one incident light is about 3 degrees or less on each side (currently about 5 degrees). Light may be received.

(18-10) A light-receiving element having a sensor area of less than 1 mm may be used to receive the laser beam from the speed control device. The sensor area is currently about 1 mm.

(18-11) Flocked paper or antireflection material may be applied to the area surrounding the optical path between the optical means (for example, the condenser lens 300) and the light-receiving element 410 (currently black tape).

(18-12) A diaphragm member for narrowing the optical path may be provided between the optical means (for example, the condenser lens 300).

(18-13) The condensing lens 300 may have polished light entrance and exit surfaces. Here, a difference may be provided in the degree of polishing of the entrance surface and the exit surface. The output surface should be processed so that the surface is not smooth.

(18-14) The visible light blocking member may not be provided on the outer surface of the housing. It is preferable to provide a transparent cover material on the outer surface of the housing. It is preferable that at least part of the constituent elements of the band-pass filter be visible when viewed from the outside of the housing. It is preferable that at least a part of the constituent elements of the light-receiving element be visible when viewed from the outer surface side of the housing.

(18-15) The thickness of the condenser lens 300 should be, for example, 3 mm or 4 m or less. By doing so, the transmittance is improved.

(18-16) The condensing lens 300 is preferably formed by two-color molding of a material that cuts visible light and a transparent material. For example, it is preferable to form a lens with a transparent material and arrange a visible light cut plate behind the lens. For example, a plate made of one material may be used to press and fix the lens made of the other material to the housing. Condensing lens 300 and a lens holder for holding condensing lens 300 may be integrally formed and brought into contact with second substrate 1030 having light receiving section 400 on a surface perpendicular to the optical axis of condensing lens 300 . It is preferable to provide a surface of the lens holder and to have a structure in which the light receiving part comes to the optical axis position when a part of the holder is inserted into a hole opened in the second substrate 1030 (when the lens holder is pressed by the second substrate 1030, it automatically aligns with the optical axis and suppresses tilt).

(18-17) A hole corresponding to the central portion of the condenser lens 300 may be made on the lens holder side.

(18-18) The electronic device may record the spot-dancing state of the laser beam with an in-vehicle camera. Recording should be performed from the start of laser reception to the end.

(18-19) Electronic devices should use an in-vehicle camera to record foggy conditions. Recording should be performed from the start of receiving the pulsed light until the end. Since infrared light is affected by water droplets, it is used to indicate erroneous measurements.

(18-20) It is preferable to perform a process of outputting information for determining whether or not the orbis (fixed type or mobile type orbis) was measured in an appropriate installation state from the image captured by the vehicle-mounted camera.

(18-21) If radar waves are detected for a certain period of time when the power of the electronic device is turned on, the message "Is there another radar detector nearby? It is a product that is causing severe interference. .” may be displayed.

[19. Modification of Electronic Device with Plural Light-Receiving Elements of First Embodiment]
(19-1) The first wavelength selector 121 may be configured to include a band-pass filter instead of the polarizing filter or together with the polarizing filter.

(19-2) The second wavelength selection unit 123 is provided with a filter instead of the polarizing filter or together with the polarizing filter, so that when the pulsed light Lout detection level is high and the other light detection levels are low, the It should be treated as being subject to warning.

(19-3) Both the first light receiving element 122 and the second light receiving element 124 may be used for detecting pulsed light. In this case, both the first wavelength selection section 121 and the second wavelength selection section 123 may be filters having characteristics for selecting and receiving light of a specific wavelength.

(19-4) A cylindrical lens (with a size that maintains the width of the window of the existing housing) may be provided so as to straddle the two first light receiving elements 122 and the second light receiving elements 124 (for example, so that the semi-cylindrical lens is horizontal). A light amount detection balance circuit that outputs zero voltage when the amount of light entering the two light receiving elements is equal to the signals from the two light receiving elements 122 and 124 is added to the existing level detector. You may When the signals from the two photodiodes rise together, they are detected by a circuit that can detect them with high sensitivity.

(19-5) The partition (shield) between the first light receiving element 122 and the second light receiving element 124 may be removed. Allows minimal modification of the housing structure to shorten the distance between the two photodiodes, or can be sensitively detected

(19-6) In Japanese Patent No. 6161429, two laser light sources are incident on and reflected from a polygon mirror so that the laser irradiation direction is horizontally scanned with the polygon mirror at the center, thereby scanning a wide range. The laser is oscillated at intervals of, for example, 0.25°, and light is received by four light receiving units. The data obtained from the scan laser sensor is the distance distribution in the polar coordinate system around the sensor. and that this data is obtained at a cycle of 12.5 Hz (80 ms). When a light pattern corresponding to this parameter is detected, a notification is given to the effect that it is a laser orbis. In particular, it is desirable to identify the detection of a specific manufacturer's laser and report the fact.

[20. Other embodiments]
As shown in FIG. 116, in the electronic device, "OFF" and "AAC/CUSTOM (custom)" may be installed in the radar sensitivity setting. "OFF" does not give an alarm even if radar is received. Custom can be set in detail as follows. In the past, there was no setting to turn off the warning display and warning sound, so for example, by setting the vehicle speed and warning level to the minimum, the number of warnings themselves would be reduced, resulting in fewer false warnings. The relationship between modes and notification control is as shown in FIG. The alarm speed setting can be set in 11 steps, for example, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 km/h or more. The alarm level setting can be set in five stages: ALL (all levels are alarmed), level 2 or higher, level 3 or higher, level 4 or higher, and level 5 only. For example, since there are many sources of false alarms in urban areas, etc., it is advisable not to issue alarm sounds below a certain level. The electronic device may display an alarm without sounding an alarm. Also, it is preferable that the electronic device reduces the alarm sound when the reception of the radar wave/laser light continues for about 30 seconds or more. Also, an alarm sound may be emitted as shown in FIG.

[21. Other embodiments]
A "masked patrol warning" that applies image recognition may be realized. Currently, a masked police car (tracking speed control) approaches the vehicle from behind. Although such a masked police car cannot be easily judged by its appearance, it actually has some features. Therefore, by using this feature and the location information of the crackdown location, a "masked patrol alarm" may be issued. For example, when the location information of the current location has a predetermined proximity relationship with the location information of the public surveillance location or surveillance POI, the electronic device issues an alarm when it recognizes the above characteristics. As a feature, the characteristics of the car (for example, a specific car model), the number of people in the vehicle is two people wearing blue uniforms, the number (starting with a specific number) number of passengers, whether or not to chase behind, before pulling out Based on the difference in the movement of the car after pulling out, the accuracy of the warning can be increased to once in 10 or once in 5 times.

[22. Modification]
The present disclosure is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the present disclosure.

(Modification 1)
The control unit 11 may determine the presence or absence of the speed measuring device based on a digital value corresponding to the amount of received light for the optical method, or an analog value corresponding to the received radio wave for the radar method. This is because the intensity of radio waves may vary more smoothly with distance than the intensity of light. In addition, the control unit 11 determines whether or not the pulse light reception or microwave reception continues by varying the duration of the light reception or microwave reception, such as 3 seconds in the case of the optical system and 1 second in the case of the radar system. It is good to judge. These times may coincide.

(Modification 2)
The electronic device 10 may have a dedicated light-emitting section for notifying the presence of the optical speed measuring device when the presence thereof is detected. In this case, the electronic device 10 does not turn on this light-emitting unit to notify the presence of the speed measuring device of another type. In addition, the electronic device 10 may not turn on the light-emitting unit other than when the presence of the optical speed measuring device is detected. Further, when the electronic device 10 detects the presence of an optical speed measuring device, the electronic device 10 may light the light emitting section in a specific color or pattern in that case. This light-emitting portion may be the light-emitting portion 23 or a different light-emitting portion.

(Modification 3)
The first wavelength selection section 121 and the second wavelength selection section 123 do not have to be band-pass filters. The first wavelength selection section 121 and the second wavelength selection section 123 may be composed of, for example, a combination of low-pass filters and high-pass filters. Also, the second wavelength selector 123 may be a low-pass filter as shown by the characteristics of FIG. 118(a). In this example, the second wavelength selector 123 transmits light in a wavelength region lower than the wavelength λ2a, and blocks light in a wavelength region higher than the wavelength λ2a. The second wavelength selector 123 may be a high-pass filter as shown by the characteristics of FIG. 118(b). In this example, the second wavelength selector 123 transmits light in a wavelength region higher than the wavelength λ2b, and blocks light in a wavelength region lower than that. Even in this case, the amount of light received by the second signal Sig2 is extremely small during the period in which the pulsed light Lout is being received. The light receiving unit 12 receives not only the pulsed light Lout intended to be received, but also ambient light. Such ambient light generally has a wide wavelength range in which energy is distributed. Therefore, even if the light-receiving unit 12 receives disturbance light that is repeatedly turned on and off periodically, the amount of received light is considered to be large. Therefore, when the amount of light received by the first signal Sig1 is large and the amount of light received by the second signal Sig2 is small, that is, when the difference is equal to or greater than the threshold, it can be estimated that the pulsed light Lout has been received. On the other hand, when the amount of light received by the first signal Sig1 is large and the amount of light received by the second signal Sig2 is also large, that is, when the difference is less than the threshold, it can be estimated that the possibility of receiving the pulsed light Lout is low. . Therefore, according to the electronic device 10, by receiving light using the first light receiving element 122 and the second light receiving element 124, it is expected that the detection accuracy of the speed measuring device 30 will be improved. Also, the first wavelength selection section 121 and the second wavelength selection section 123 may be configured using optical elements other than filters, such as prisms.

(Modification 4)
In the above-described embodiment, the light-receiving section 12 has two of the first light-receiving element 122 and the second light-receiving element 124, but it may be configured to have only one. FIG. 119 is a diagram showing the configuration of electronic device 10 in this modification. In this example, the light receiving section 12 does not have the first light receiving element 122 and the second light receiving element 124 but has the light receiving element 128 . The light receiving element 128 may have the same configuration as the first light receiving element 122 or the second light receiving element 124 . Further, the electronic device 10 of this modified example has a driving section 60 . The drive unit 60 moves the first wavelength selection unit 121 and the second wavelength selection unit 123 under the control of the control unit 11 . The drive unit 60 has, for example, a motor and gears. During operation of the electronic device 10 , the control unit 11 moves the first wavelength selection unit 121 and the second wavelength selection unit 123 so as to alternately cover the light receiving surface of the light receiving element 128 . That is, as shown in FIG. 120( a ), the controller 11 first provides the first wavelength selector 121 on the light receiving surface of the light receiving element 128 . Then, the control unit 11 acquires the signal acquired from the light receiving element 128 at this time as the first signal Sig1. Next, as shown in FIG. 120(b), the controller 11 first separates the first wavelength selector 121 from the light receiving surface of the light receiving element 128 and provides the second wavelength selector 123 on the light receiving surface. Then, the control unit 11 acquires the signal acquired from the light receiving element 128 at this time as the second signal Sig2. Then, the control unit 11 detects the speed measuring device 30 based on the first signal Sig1 and the second signal Sig2.

(Modification 5)
In the embodiment described above, the light receiving section 12 has two of the first light receiving element 122 and the second light receiving element 124, but it is preferable to have three or more light receiving elements. Even in this case, the control unit 11 can expect to improve the detection accuracy of the velocity measuring device 30 by making the wavelength regions of the light to be selected different for each of the three or more light receiving elements.

(Modification 6)
In the above description, the light receiving section 12 has at least one set of the wavelength selection section and the light receiving element. Alternatively, the light receiving section 12 may have at least one light receiving element without the wavelength selection section. For example, the light-receiving unit 12 may receive a third light-receiving amount when a specific wavelength is selected and received instead of the second light-receiving amount, which is the light-receiving amount of light having a wavelength different from the specific wavelength. In this case, the control unit 11 preferably performs control to notify the existence of the speed measuring device 30 based on the second light receiving amount and the third light receiving amount.

Further, the light receiving section 12 may receive incident light with a single light receiving element. Then, the control section 11 preferably performs control for notifying the presence of the speed measuring device 30 based on the pulse width or pulse interval specified based on the amount of light received by the light receiving section 12 . The method using the pulse width or the pulse interval may be the same as the modified example of the first embodiment described above. The control unit 11 may perform control to notify the presence of the speed measuring device 30 at least when the pulsed light Lout having at least one waveform is received.

(Modification 7)
The light receiving element may be an imaging element of a camera such as a drive recorder. For example, the control unit 11 acquires an image captured by the vehicle-mounted camera 50 and analyzes the image. The vehicle-mounted camera is desirably a camera that does not have an infrared cut filter. This is to prevent the pulsed light Lout from being cut off. Then, as a result of the image analysis, the control unit 11 performs control to notify the existence of the speed measuring device 30 when light of a specific pattern is received. The controller 11 may detect the specific pattern of light based on a change in brightness indicating that the light has a specific wavelength. When light of a specific pattern is received, the control section 11 may record a captured image for a period corresponding to the light receiving period. The period is, for example, a period of one minute before and after the timing at which the light of the specific pattern is received, but is not limited to this.

(Modification 8)
The electronic device 10 may detect the speed measuring device 30 behind the vehicle 40 . In this case, the light receiving section 12 should be arranged so as to receive the pulsed light from the vehicle 40 .

(Modification 9)
When the electronic device 10 detects the speed measuring device 30, the electronic device 10 may upload information such as position information indicating the position of the speed measuring device 30 to the server. The server may be a server that provides social networking services, or may be a server that manages and distributes update information regarding notification objects.

The user may be inquired about whether or not the electronic device 10 can transmit the position information in advance or at each detection or transmission timing. If consent is obtained in advance, the burden on the user is reduced. The server should store the location information and distribute it to the other electronic devices 10 . When the electronic device receives the position information from the server, the electronic device notifies when it approaches the position indicated by the position information. The notification may be performed by the method already described, but the control unit 11 may display, for example, an icon as information clearly indicating that the notification is based on the posted information. Further, it is preferable that the notification based on the posted information is performed only within a predetermined period from the detection of the presence of the speed measuring device or the transmission timing of the position information. This is because crackdowns are often carried out at fixed times.

Also, the system according to the present disclosure can be applied to detect a light-emitting device that emits light of a specific wavelength, in addition to detecting a velocity measuring device.

(Modification 10)
Some of the configurations and operations described in each of the above embodiments may be omitted or changed. For example, the electronic device 10 may be a device compatible with the optical system and not compatible with the radar system. Further, for example, the position, shape, and size of each member in the electronic device 10 are merely examples. Also, the light receiving unit 12 may be provided outside the electronic device 10 . For example, the light receiving unit 12 may be provided at a predetermined position on the vehicle 40, such as inside the license plate, hood, door mirrors, or grill. In this case, the control section 11 may acquire the signal from the light receiving section 12 via the communication section 17 .

(Modification 11)
Further, the control unit 11 may determine whether or not the speed measuring device 30 exists, and at least when determining that the speed measuring device 30 exists, may output a signal indicating the determination result to the external device. . This external device may notify that the speed measuring device 30 is present. The present invention can also be specified by a control device (for example, a control module) incorporated in the electronic device 10 and having the same function as the control unit 11 .

(Modification 12)
The GPS receiver of the above-described embodiment can be read as a GNSS receiver having an antenna for receiving signals from the Global Navigation Satellite System (GNSS) and a processing circuit for processing the received signals. is. Positioning by GNSS is commonly used as GPS positioning. The position information obtained by the positioning process using the GNSS receiver is information representing the positioning point of the position of the electronic device 10 in a coordinate format, and includes at least latitude information and longitude information.

(Modification 13)
A lens angle variable function may be added to an electronic device using the lens (for example, the condenser lens 300, 950) described above. By doing so, it is possible to compensate for the deviation between the laser reception viewing angle and the vehicle traveling direction. For example, the electronic device may have a configuration in which a lens device having a lens mounted thereon is attached to a housing by a mechanism capable of changing its posture up and down and/or left and right. In this way, the user can adjust the posture of the lens device so that the lens is directed in the desired direction.

The scope of the invention is not to be construed as specifically set forth or limited herein, but rather includes within its scope any combination of the various aspects of the invention disclosed herein. While the claimed features of the invention are identified in the appended claims, any configuration not presently specified in the claims is disclosed herein. We intend to claim such configurations in the future.

The present invention is not limited to the configurations described in the above embodiments. The constituent elements of the above-described embodiments and modifications may be arbitrarily selected and combined. In addition, arbitrary constituent elements of each embodiment and modifications, arbitrary constituent elements described in Means for Solving the Invention, or constituent elements embodying arbitrary constituent elements described in Means for Solving the Invention and may be configured in any combination. We intend to acquire the rights for these as well in the amendment of the present application or in a divisional application. In addition, even if there is a description of "in the case of" or "when", it is not described as a configuration limited to that case or that time. We disclose and intend to reserve these occasions and occasions. Moreover, the parts described with order are not limited to this order. It also discloses a configuration in which some parts are deleted or the order is changed, and there is an intention to acquire the right.

In addition, the applicant intends to acquire rights to the entire design or partial design by converting the design application. Although the entire device is drawn in solid lines in the drawing, the drawing includes not only the overall design but also the partial design claimed for a part of the device. For example, it is a drawing that includes a part of the device as a partial design regardless of the member, as well as a partial design of a part of the member of the device. The part of the device may be a part of the device or a part of the member. We intend to obtain rights not only for the overall design, but also for the partial design in which any part of the solid line part of the drawing is a broken line part.

10: Electronic device 10A: Electronic device 11: Control unit 12: Light receiving unit 12A: Light receiving unit 12B: Light receiving unit 12C: Light receiving unit 13: Display unit 14: Speaker 15: Microwave receiving unit 16: GPS receiving unit 17: Communication unit 18: storage unit 19: operation unit 20: sensor unit 21: mounting unit 22: power supply unit 23: light emitting unit 24: cable terminal unit 30: speed measuring device 31: speed measuring unit 32: imaging unit 33: strobe 40: vehicle 41 : Dashboard 42: Windshield 43: Rearview mirror 50: In-vehicle camera 60: Driving unit 70: Camera 80: Electronic device 80A: Electronic device 81: Cable 90: Sensor device 100: Housing 100A: Housing 101: First window 102: Second window 103: Partition wall 104: Region 121: First wavelength selection unit 122: First light receiving element 123: Second wavelength selection unit 124: Second light receiving element 125: Interface 126: Visible light cut filter 127: Visible light Cut filter 128: Light receiving element 171: Wireless module 201: Illuminance sensor 221: Power switch 222: DC jack 223: Button battery 250: Filter 270: Shield plate 300: Condensing lens 310: Entrance surface 311: Curved surface 312: Output surface 313 : flat surface 314A: leg portion 314B: leg portion 400: light receiving portion 410: light receiving element 430: differential amplifier 440: differential amplifier 500: reflecting portion 600: reflecting portion 801: first housing 802: second housing 803 : lid portion 810: first substrate 820: second substrate 830: third substrate 840: fourth substrate 841: light receiving portion 842: light transmitting portion 843: light receiving element 850: antenna portion 851: processing circuit 860: GPS receiving portion 870 : Filter 880: Shield plate 900: Electronic device 900A: Housing 901: First housing 902: Second housing 911: Light emitting unit 912: Operation unit 913: Speaker 913A: Sound emitting unit 914: DC jack 915: Lens holder 916: Control part 917: Mounting part 918: Screw 919: Screw 920: Condensing lens 920A: Light receiving part 921: Light receiving element 930: Substrate 931: Light receiving element 932: Translucent part 933: Filter 934: Shield plate 935: Shield case 936: Shield case 940: First mounting member 941: Base portion 942: Socket portion 943: Ball stud 944: Mounting portion 950: Second mounting member 951: First portion 952: Second portion 953: Third portion 960: Mounting Member 961: First part 962: Second part 963: Third part 964: Fourth part 965: Fifth part 966: Sixth part 970: S Tee 971: First part 972: Second part 973: Projection 974: Projection 1001: First housing 1002: Second housing 1002A: Second housing 1003: Lid 1006: Lens holder 1010: First substrate 1030: Second substrate 1031: Shield case 1033: Translucent part 1331: Control circuit

Claims (5)

A system for controlling to issue an alarm in response to receiving a laser beam for measuring the speed of a vehicle,
a function of receiving laser light from the front of the vehicle;
a function of receiving laser light from behind the vehicle;
a function of changing the content of the warning depending on whether the laser beam is received from the front of the vehicle or from the rear;
has
A function of receiving laser light from the front of the vehicle and a function of receiving laser light from the rear of the vehicle are provided in the same electronic device housing,
system. A system for controlling to issue an alarm in response to receiving a laser beam for measuring the speed of a vehicle,
a function of receiving laser light from the front of the vehicle;
a function of receiving laser light from behind the vehicle;
a function of changing the content of the warning depending on whether the laser beam is received from the front of the vehicle or from the rear;
has
a function of receiving laser light from the front of the vehicle and a function of receiving laser light from the rear of the vehicle are provided in the same housing of the electronic device,
The function of receiving a laser beam from the front of the vehicle is received by a light receiving unit on the back side of the housing,
The function of receiving laser light from the rear of the vehicle is received by a light receiving unit on the front side of the housing.
system. A function of receiving laser light from the front of the vehicle and a function of receiving laser light from the rear of the vehicle are provided in the housing arranged in the interior of the vehicle.
3. A system according to claim 1 or 2. 4. The system of any one of claims 1 to 3, wherein the function of receiving laser light from behind the vehicle receives laser light from a police car behind the vehicle. 5. The system according to any one of claims 1 to 4, further comprising a function of changing the level of the warning according to the intensity of the laser light received from the rear of the vehicle.

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