JP2021148749A - System, program, and the like - Google Patents

Abstract

To provide a system and the like better than before.SOLUTION: A system of the present invention performs a process of muting sound output to a speaker as a suppression process, for example, when "sound alarm being not given at the time of suppression" is selected. As a result, even if a signal whose microwaves are received with a microwave receiver is input to a control unit, a sound alarm of a microwave alarm is not sounded. This causes only an alarm to a screen to be given.SELECTED DRAWING: Figure 4

Description

The present invention relates to, for example, systems and programs.

A speed measurement system (radar) is known that emits microwaves toward a traveling vehicle and measures the traveling speed of the vehicle based on the amount of Doppler transition of reflected waves from the vehicle. There is a radar detector that issues an alarm when it receives microwaves emitted from this speed measurement system, and it is a system that contributes to safe driving by issuing an alarm to a driver who has inadvertently issued a speed. ..

Japanese Unexamined Patent Publication No. 2017-96728

However, the conventional system has various problems.
Therefore, an object of the present invention is to provide a system, a program, or the like having better characteristics than the conventional ones.

The object of the present invention is not limited to this, and there is an intention to acquire rights by divisional application, amendment, or the like with respect to a configuration for the purpose of obtaining an effect produced from a portion of the configuration disclosed in the present specification, drawings, and the like. For example, the present specification discloses a problem in which a part described as "-can be" or "-is possible" in the present specification is replaced with "-is a problem". The issues are described as independent, and the intention is to acquire the rights to solve each issue independently by divisional application, amendment, etc. Even if the subject matter is implicitly grasped from the description in the specification, the applicant intends to make a part of the structure described in the specification amended or to be claimed in the divisional application. It also discloses a structure that solves problems that combine these independent problems, and has the intention to acquire rights.

(1) Microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of radar waves for measuring the speed of a vehicle, a function of controlling the microwave receiving means, and microwave receiving means. The control means includes a control means having a function of performing control for issuing an alarm when the microwave is received, and the control means limits the reception sensitivity of the microwave receiving means, the characteristics of the radio wave received by the microwave receiving means, and the above. The microwave receiving means is based on at least one of the frequency of the radio wave received by the microwave receiving means, the characteristics of the received position of the microwave receiving means, and the input information from another means other than the microwave receiving means. It is preferable to use a system having a function of suppressing an alarm based on the radio wave received in.

In this way, it is possible to provide a system superior to the conventional one for the user. For example, when a vehicle equipped with this system approaches a new false alarm source, which has become a problem recently, false alarms can be reduced as compared with the conventional case. In the same frequency range as the microwave emitted from the speed measurement system, the microwave emitted by the vending machine for human feeling, etc., and the vehicle emits to grasp the relationship with other vehicles in front and behind. There are microwaves and the like, and problems such as issuing an alarm based on these receptions are increasing, but such problems can be further reduced.

In particular, the limitation of the reception sensitivity of the microwave receiving means, the characteristics of the radio wave received by the microwave receiving means, the frequency of the radio wave received by the microwave receiving means, the characteristics of the position received by the microwave receiving means, and the microwave. Suppression of alarms based on input information from other means than the receiving means is to detect at least one of the microwaves emitted by the vending machine or the vehicle to understand its relationship with other vehicles in front and behind. It is good to have a configuration to do. Compared to conventional automatic doors, vending machines are for unmanned sales, so many are installed in the suburbs where speed control is likely to occur. In addition, since the vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind moves by itself, there is an unprecedented characteristic that it is uncertain where it is detected. In this way, the vending machine and such a vehicle always sound the alarm, so that the problem of being noisy or not knowing the original alarm can be alleviated. In addition, since the vending machine and such a vehicle always sound an alarm, it is possible to solve the problem that the original speed control radar alarm is not given by switching to a setting that does not give an alarm. It is possible to properly give the original alarm while avoiding such false alarms based on microwaves from the vending machine or the vehicle that hinders the original use.

For example, the "suppression" may be performed so that the alarm is not performed, but it is preferable to perform the "suppression" in a manner that is difficult to recognize as compared with the case where the alarm is not suppressed. For example, in the case where the alarm is given by sound, it is preferable to make the alarm smaller than in the case where the alarm is not suppressed. For example, when the alarm is displayed on the screen, the size of the alarm display may be less conspicuous than when the alarm is not suppressed (for example, it is displayed smaller). When an alarm is given by sound and display, for example, when the alarm is not suppressed, an alarm is given by both sound and display, while when the alarm is suppressed, an alarm by sound is not given and a display alarm is given. It is good to control to. As the suppression of the alarm, the sensitivity may be reduced, the alarm may be canceled, or the alarm content may be changed. For example, it may be notified that there is a false alarm source (for example, a vending machine).
"Suppression" may be controlled to reduce the sensitivity of the microwave receiving means.
The "alarm" may be an alarm that notifies the detection of radar waves.

It is preferable that the vending machine or the like and the original alarm target are identified in combination with another method. In particular, it is preferable to configure the identification based on the input information from other means other than the microwave receiving means.
The "other means" may be a means for detecting a vehicle that emits microwaves in order to grasp the relationship with the vending machine or other vehicles in front and behind.

As the "other means", for example, an imaging means (for example, a camera or the like) or the like may be provided. The input information from the other means may be, for example, video information taken by the vehicle, and in particular, video information taken around the vehicle. As the control of suppressing the alarm based on the input information from other means other than the microwave receiving means, for example, it is determined whether or not the image of the false alarm source is present in the image taken by the vehicle, and it is determined that the image is present. In some cases, it is advisable to suppress the alarm. As a false alarm source, it is preferable to use a vending machine or a vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind. In particular, it may be configured as described in (9) and (10) described later.

As "other means", for example, a radio wave detecting means for detecting radio waves other than microwaves provided in a device that emits microwaves that is a source of false alarm (for example, WiFi and / or Bluetooth provided in a vending machine that emits microwaves). It is advisable to have a module that detects radio waves, etc.). As input information from other means, for example, WiFi SSID or Blutooth beacon information may be used. As a control for suppressing an alarm based on input information from another means other than the microwave receiving means, for example, a radio wave detecting means for detecting a radio wave other than the microwave provided in a device for emitting a microwave which is a false alarm source is used. It is advisable to determine whether or not the radio wave is detected, and if it is determined that the radio wave is detected, suppress the alarm. As a false alarm source, it is preferable to use a vending machine or a vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind. In particular, it may be configured as described in (11) described later.

(2) The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on the characteristics of the radio wave received by the microwave receiving means, and the characteristic of the radio wave is a radio wave modulation method. Therefore, when the modulation method of the radio wave is not FSK modulation, it is preferable to have a function of suppressing an alarm based on the radio wave received by the microwave receiving means.

In this way, for example, it is possible to suppress an alarm caused by unmodulated microwaves emitted by a vending machine. In this way, it is possible to suppress the alarm by the StepFM-modulated microwave emitted by the own vehicle or another vehicle. As for "when not FSK modulation", it is particularly preferable to include at least one of unmodulation or StepFM modulation, and particularly when both are provided, an excellent effect is exhibited.

(3) The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means, and the frequency of the microwave emitted by the vending machine and other vehicles are within the predetermined frequency range. It is preferable to have a function of suppressing an alarm when the frequency of the emitted microwave is included and the frequency of the radio wave deviates from the range of the frequency emitted by a specific speed measuring device.

In this way, it is possible to suppress an alarm based on microwaves that deviates from the frequency range of the speed measuring device. In particular, it is effective when the microwave receiving means or the controlling means is provided with a function of scanning (sweeping) the reception frequency of the microwave receiving means within a predetermined frequency range. The "radio wave frequency" may be a frequency corresponding to a control value for scanning, or a frequency counter may be provided to measure the frequency of the received radio wave. It does not overlap the frequency range of the speed measuring device, but is particularly useful for microwaves from false alarm sources within a predetermined frequency range.

(4) The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means and a function of scanning the reception frequency of the microwave receiving means, and the scanning of the reception frequency is performed. , The range in which the frequency of the radio wave includes the range of each frequency emitted by the speed measuring device of a different model is scanned, and the range deviating from the frequency range of all the models of the different models is skipped and scanned. It is good to have a function.
In this way, it is possible to suppress an alarm based on microwaves that deviates from the frequency range of the speed measuring device.

(5) A storage means for storing the position information of the vending machine, the control means has a function of acquiring the current position of the vehicle, and a function of suppressing an alarm based on the characteristics of the received position of the microwave receiving means. As a characteristic of the receiving position of the microwave receiving means, it is preferable to have a function of suppressing an alarm when approaching the position of the vending machine stored in the storage means.
In this way, false alarms due to microwaves emitted by vending machines can be suppressed.

For example, the location of the vending machine is published on the vending machine sales promotion application, etc., so the position is memorized and the microwave is received while approaching the position. It is advisable to have a configuration that suppresses the alarm when it is in.

(6) The control means has a function of acquiring the current position of the vehicle, a function of limiting the reception sensitivity of the microwave receiving means, and a function of suppressing an alarm based on the characteristics of the received position of the microwave receiving means. It is preferable that the microwave receiving means is provided with a function of lowering the receiving sensitivity as a limitation of the receiving sensitivity when approaching the position of the vending machine stored in the storage means as a characteristic of the receiving position.
In this way, false alarms due to microwaves emitted by vending machines can be suppressed.

For example, the location of the vending machine is published on the vending machine sales promotion application, etc., so the position is memorized and the microwave is received while approaching the position. When it is in, it is preferable to control it so as to lower the microwave reception sensitivity.
(7) The position of the vending machine may be the position of the vending machine installed along the road.
In this way, it is possible to prevent the alarm from being suppressed as if the vehicle is approaching the position of a vending machine installed other than along the road.

Only the position of the vending machine installed along the road may be stored in the storage means, or even if the position of the vending machine is approached, if the position is not a vending machine along the road, "when approaching". It may be controlled so as not to be.
(8) It is preferable to perform control that makes a difference in the degree of restraint depending on whether the position of the vending machine is on the right side or the left side in the traveling direction of the vehicle.
In this way, the alarm can be suppressed and the alarm can be issued more accurately.

For example, when the sensitivity is controlled so that the vending machines on both sides of the road can receive the radio waves, the vending machines on both sides control the suppression, and the sensitivity is such that only the vending machines on the left side receive the radio waves. When the control is performed, the restraint is controlled at the position of the vending machine on the left side, and the restraint is not controlled at the position of the vending machine on the left side.

(9) The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on input information from another means other than the microwave receiving means, and as the other means, from the vehicle. Features of the appearance of the device that is equipped with an imaging means capable of photographing the appearance of the device that emits microwaves that are false alarm sources and that emits microwaves that are erroneous alarm sources stored in advance in the image captured by the imaging means. When there is an item corresponding to the above, it is advisable to perform control to suppress the alarm.
In this way, the alarm can be suppressed and the alarm can be issued more accurately.
The false alarm source may include at least one of the vending machines or a vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind.

The "appearance of a device that emits microwaves that is a source of false alarms stored in advance" includes at least one of the appearance of a specific vending machine that emits microwaves and the appearance of a specific vehicle that emits microwaves. good. At least one of the appearance of a vending machine that does not emit microwaves other than the specific vending machine and the appearance of a vehicle that does not emit microwaves other than the specific vehicle may be configured not to be detected in the video. It is preferable that the alarm is not suppressed even if it is detected in the video.

"Control to suppress the alarm when there is a feature of the appearance of a device that emits a microwave that is a false alarm source stored in advance in the image captured by the imaging means" includes, for example, an image. When some of the devices correspond to the appearance characteristics of the device that emits microwaves, which is a false alarm source, it is advisable not to give an alarm or to reduce the sensitivity of the microwave receiving means. For example, it is advisable to reduce the and / or sensitivity without warning when the vending machine is being photographed by the camera.

(10) The position of the imaging means, which is installed so as to be able to photograph the front of the vehicle and corresponds to the appearance feature of the device that emits microwaves that are false alarm sources in the image captured by the imaging means. Based on the above, the configuration may be such that the mode of suppressing the alarm is changed.
In this way, the alarm can be suppressed and the alarm can be issued more accurately.

As "a configuration in which the mode of suppressing the alarm is changed based on the position of the device that emits microwaves that are an erroneous alarm source in the image captured by the imaging means by the imaging means". Is, for example, when the position of the device corresponding to the appearance feature of the device that emits the microwave that is the false alarm source in the image captured by the imaging means is the position corresponding to the front left side of the vehicle. It is preferable to have a configuration in which the suppression is greater than in the case where the position corresponds to the front left side. As a configuration for greatly suppressing, for example, it is preferable to greatly reduce the sensitivity. The inventors have found that when there is a vending machine on the left, it is closer to the vending machine and there is a greater demand for reduction of false alarms than when there is a vending machine on the right side. False alarms can be effectively suppressed.

(11) The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on input information from another means other than the microwave receiving means, and as the other means, an erroneous alarm source. A radio wave detecting means for detecting radio waves other than microwaves emitted by a device that emits microwaves is provided, and radio waves other than microwaves emitted by a device that emits microwaves that are an erroneous alarm source by the radio wave detecting means. When is detected, it is preferable to perform control to suppress the alarm.
In this way, the alarm can be suppressed and the alarm can be issued more accurately.
The false alarm source may include at least one of the vending machines or a vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind.

As the radio wave detecting means, for example, a module for detecting the radio wave of WiFi and / or Bluetooth provided in the vending machine that emits microwaves may be used.

"Control to suppress the alarm when a device that emits a microwave that is a false alarm source detects a radio wave other than the microwave emitted by the radio wave detecting means" includes, for example, a vending machine that emits a microwave. It is advisable to store a list of SSIDs emitted from the WiFi module provided in the above in advance, and suppress the alarm when the microwave of the SSID included in the list is also received when the microwave is received.

"Control to suppress the alarm when a device that emits a microwave that is a false alarm source detects a radio wave other than the microwave emitted by the radio wave detecting means" includes, for example, a vending machine that emits a microwave. It is preferable to store a list of beacon information emitted from the Bluetooth module provided in the above in advance, and suppress the alarm when the microwave is received and the Bluetooth radio wave of the beacon information included in the list is also received. In particular, when there is a device that emits microwaves, which is a false alarm source, and emits the same information by radio waves other than microwaves, it is preferable to store the same information in a list or the like.

For example, the connection between a smartphone and a Coke ON vending machine is made wirelessly via Bluetooth. An internet connection is required for the stamping process, and at that time, the vending machine communicates with the internet via the customer's smartphone. It is preferable to use a radio wave detecting means for detecting radio waves for such a purpose. The alarm may be suppressed when unique information (for example, vending machine ID, etc.) emitted from an object other than the alarm target, which is included in the radio wave detected by the radio wave detecting means, is received. For example, if unique information is received, no alarm is given even if the above radio wave is received, and / or sensitivity may be reduced. .. As the suppression of the alarm, the sensitivity may be reduced, the alarm may be canceled, or the alarm content may be changed. For example, it may be notified that there is a vending machine.

(12) The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on the characteristics of the radio wave received by the microwave receiving means, and the microwave receiving means or the control means. At least one of the above is equipped with an SDR (Software Defined Radio), and the control means determines the characteristic information of the waterfall image generated by the SDR as the identification of the radio wave and the speed of the vehicle in the absence of a pre-stored false alarm source. It is preferable that the configuration is such that it is determined whether or not to suppress the alarm based on the feature information of the waterfall image of the radar wave to be measured.
In this way, the alarm can be suppressed and the alarm can be issued more accurately.

In the waterfall image, the frequency of the microwave received by the microwave receiving means is on one axis (for example, the lower limit frequency of the frequency band is on one end of one axis, and the upper limit frequency of the frequency band is on one axis. With the time axis as the other axis) and the time axis as the other axis, the predetermined signal characteristics (for example, signal strength) of the time at the frequency are defined as the predetermined color (when relatively weak, the first color (for example, blue), relative to each other. It is advisable to draw when it is strong against (a second color different from the first color (for example, red) that causes a gradation between the two). At this time, each color corresponds to a wide dynamic range. Signal characteristics (eg signal strength)
It is good to set the relationship with.

As "characteristic information of the waterfall image of the radar wave for measuring the speed of the vehicle when there is no erroneous alarm source stored in advance", the speed of the vehicle is measured when there is no erroneous alarm source in a predetermined time range. It is preferable that the waterfall image of the radar wave is the alarm target, and the waterfall image when there is an erroneous alarm source in the predetermined time range is the non-alarm target, and the trained model is machine-learned. Machine learning is particularly preferably performed by deep learning (DL), particularly by CNN, and the trained model is preferably a model learned by deep learning (particularly a component of CNN). For example, it may be composed of SDR waterfall + DL (CNN, etc.).

"Whether to suppress the warning based on the feature information of the waterfall image generated by the SDR and the feature information of the waterfall image of the radar wave that measures the speed of the vehicle when there is no false alarm source stored in advance. As a "configuration for determining whether or not", the warning target is a waterfall image of the radar wave that measures the speed of the vehicle when a microwave is received and there is no false alarm source in a predetermined time range. When it is determined that the result inferred using the machine-learned trained model is the alarm target (for example, the alarm target), with the waterfall image when there is an erroneous alarm source in the predetermined time range as the non-alarm target. When an alarm is issued without suppressing the alarm when the probability is equal to or greater than a predetermined threshold value, and the inferred result is determined to be a non-alarm target (for example, the probability of being a non-alarm target is high). (When it is above a predetermined threshold value) It is advisable to suppress the alarm.
(13) A program for realizing the function of the control means of the system according to any one of (1) to (12) in a computer may be used.

The inventions shown in (1) to (12) above can be arbitrarily combined. For example, the configuration may be such that at least a 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 an invention in which at least a part of at least one of the inventions after (2) is added. Further, an arbitrary configuration may be extracted from the inventions shown in (1) to (12), and the extracted configurations may be combined. The applicant of the present application intends to acquire rights to an invention including these configurations. Further, even if there is a description of "in the case of" or "in the case of", it is not described as a configuration limited to that case or at that time. These show examples of better configurations and are willing to acquire rights in these cases and in occasional configurations. In addition, the places where the description is accompanied by an order are not limited to this order. It also discloses a configuration in which some parts have been deleted or the order has been changed, and has the intention of acquiring rights.

According to the present invention, it is possible to provide a system or the like superior to the conventional one.

The effect of the invention of the present application is not limited to this, and the effect produced from the portion of the configuration disclosed in the present specification, drawings, etc. is also disclosed, and the configuration exhibiting the effect is also disclosed by divisional application, amendment, etc. Have the intention to acquire the right. For example, in this specification, the parts such as "-can" and "-possible" clearly indicate the effect to be performed, and even if there is no description such as "-can" and "-possible", the effect can be obtained. There is a part to show. Moreover, even if there is no such description, there is an effect that can be grasped by the configuration.

It is a figure which shows the structure of the navigation device which has a radar detection function which is a preferable embodiment of the device which concerns on this invention. It is a block diagram of a navigation device. It is explanatory drawing which shows the display example of the display part. It is a figure which shows the display example of the microwave reception alarm function setting screen.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The embodiment shown below is one embodiment that provides the present invention, and the content of the present invention is not limitedly interpreted based on the following description.

FIG. 1 shows an external view of a preferred embodiment of a navigation device having a radar detection function equipped with the system according to the present invention, FIG. 2 shows a functional block diagram thereof, and FIG. 3 shows a display. An example of the form is shown. As shown in FIG. 1, the navigation device includes a portable device main body 2 that can be carried and a cradle 3 that is a mounting member for holding the main body 2. By attaching the device body 2 to the cradle 3, it functions as an in-vehicle navigation device, and by removing it from the cradle 3, it functions as a portable navigation device (PND) driven by a built-in battery. Of course, it is not necessary to adopt a configuration in which the apparatus main body 2 can be easily attached to and detached from the cradle 3 in this way.

The device main body 2 is detachably attached to the cradle 3. The device main body 2 includes a flat rectangular case main body 4. A display unit 5 is arranged on the front surface of the case body 4, a touch panel 8 for detecting which part of the display unit 5 is touched is provided on the display unit 5, and alarm lamps 9 are provided on both sides of the front surface. It has. The cradle 3 includes a cradle main body 6 that holds the device main body 2, and a pedestal portion 7 that indicates the cradle main body 6 in an arbitrary posture at a predetermined position (dashboard or the like) in the vehicle interior. The pedestal portion 7 is attracted and fixed on a dashboard or the like by a suction cup provided on the bottom surface. The pedestal portion 7 and the cradle main body 6 are rotatably connected within a predetermined angle range via a connecting mechanism such as a ball joint. Since it is a ball joint, the pedestal portion 7 and the cradle main body 6 rotate and move relatively within an arbitrary angular range in the three-dimensional direction, and retain their positions at an arbitrary angular position due to frictional resistance at the joint portion. Therefore, the device main body 2 attached to the cradle main body 6 can also be arranged in an arbitrary posture on the dashboard.

Further, an SD memory card slot portion 21 is provided on one side surface of the case body 4, and an SD memory card 22 in which map data or the like is recorded can be inserted into the SD memory card slot portion 21. Further, a DC jack 10 is provided on the side surface of the case body 4 where the SD memory card slot portion 21 is provided. The DC jack 10 is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of a vehicle via the cigar plug cord so that power can be supplied.

On the other hand, a power switch and a USB connection portion 23 are provided on the side surface opposite to the SD memory card slot portion 21. By inserting one end of the USB cable into the connector of the USB connection unit 23 and connecting the other end to the personal computer, it is possible to upgrade the software application version. Further, during normal operation, the control unit 18 can acquire the video data captured by the drive recorder 26 by inserting the USB cable connected to the drive recorder 26 into the connector of the USB connection unit 23. The drive recorder 26 may be installed on the upper part of the windshield, for example, with the camera facing the direction of the shooting area in front of the windshield.

The following devices and parts are arranged inside the case body 4. A microwave receiver 11 is arranged inside the case body 4 on the back side. The microwave receiver 11 receives microwaves in a predetermined predetermined frequency band ★ including the frequency of the radar wave for measuring the speed of the vehicle, and when the microwave in the set predetermined frequency range is received, the microwave receiver 11 receives the microwave. , Detects the signal level of the received microwave. Specifically, the RSSI voltage, which is the signal level and corresponds to the electric field strength, is used. The above-mentioned predetermined frequency band is, for example, a frequency band including the frequency of microwaves emitted from the vehicle speed measuring device.

Further, inside the upper surface side of the case main body 4, a GPS receiver 12 that receives a GPS signal and obtains a current position is arranged. An infrared communication device 14 is arranged inside the front side of the case body 4. The infrared communication device 14 transmits / receives data to / from a communication device having an infrared communication device such as a mobile phone 15. Further, a speaker 20 is also built in the case body 4.

Further, the device of this embodiment includes a wireless receiver 13 and a remote control receiver 16. The radio receiver 13 receives the incoming radio of a predetermined frequency. The remote controller receiver 16 communicates data with the remote controller (portable device: slave unit) 17 and makes various settings for the device. The radio receiver 13 receives incoming radio in a predetermined frequency band. This predetermined frequency is, for example, a radio frequency band used by an emergency vehicle when notifying a base station of its own vehicle position.

Further, the device of the present embodiment includes a Bluetooth module 24 for performing Bluetooth communication by transmitting and receiving a Bluetooth wireless signal, and a WiFi module 25 for performing WiFi communication by transmitting and receiving a WiFi wireless signal.

The navigation device of the present embodiment is connected to a drive recorder installed on the upper part of the windshield via a connection cable in order to photograph the front of the vehicle, and controls to suppress an alarm based on the image information photographed by the drive recorder. It has a function to be executed by the control unit 18.

In addition to the navigation function, the navigation device of the present embodiment also has a target object detection function as a target object detection device for detecting a target object such as a vehicle speed measuring device and other traffic monitoring points. All the functions including these navigation functions and the target detection function are stored in the EEPROM of the control unit 18 as a program executed by the computer included in the control unit 18, and the computer having the control unit 18 executes the program. It will be realized.

That is, the control unit 18 controls the above-mentioned various input devices (GPS receiver 12, microwave receiver 11, wireless receiver 13, touch panel 8, remote control receiver 16, etc.) from the above-mentioned various input devices. A predetermined process is executed based on the input information, and the output device (display unit 5, alarm lamp 9, speaker 20, etc.) is controlled to output the predetermined information / alarm / message. This predetermined process is for executing each of the above functions, and accesses the database 19 and the SD memory card 22 as needed.

Here, the database 19 can be realized by a non-volatile memory (for example, EEPROM) inside the microcomputer of the control unit 18 or externally attached to the microcomputer. The database 19 contains information necessary for detecting and navigating certain targets, maps, and other targets at the time of shipment, a list of vending machine location information, and a list of Bluetooth beacon information issued by vending machines. A list of WiFi SSID information issued by vending machines is registered, and data added after that can be updated after a predetermined process. This update process may be performed, for example, by installing an SD memory card in which additional data is stored in the SD memory card slot 21 and transferring the SD memory card to the database 19. Further, this data update can be performed by using the infrared communication device 7 or by using a personal computer or other external device connected via the USB terminal 23.

The control unit 18 for realizing the target object detection function operates as follows. That is, the control unit 18 controls to output a predetermined alarm when the microwave receiver 11 receives the microwave (microwave alarm). The alarm includes a buzzer using the speaker 20 and a voice output for notifying the reception of microwaves (detection of a vehicle speed measuring device, etc.), and a message output using characters or images using the display unit 5. ..

Further, when the wireless receiver 13 receives a desired radio, the control unit 18 outputs a predetermined alarm (radio alarm). The alarm includes a buzzer using the speaker 20 and a voice output for notifying the reception of microwaves (approaching an emergency vehicle, etc.), and a message output using characters or images used by the display unit 5. The form of the alarm associated with the reception of the radio and the form of the alarm associated with the reception of the microwave may be different.

Further, the control unit 18 outputs a predetermined alarm when the current position detected by the GPS receiver 12 and the position of a target object such as a traffic monitoring point stored in the database 19 have a predetermined positional relationship. (GPS alarm). Therefore, the database 19 is safer with more attention such as information on the target to be detected (position information of the target including longitude and latitude, type information of the target, etc.), accident-prone areas, and traffic control information. There is traffic safety information for driving, landmarks and various information useful for driving. Each piece of information is registered in association with specific information types (types of targets, types of traffic control, accident-prone areas, landmark names, etc.) and location information.

The distance to the target when issuing an alarm can be changed for each type of target. As the mode of the alarm, similarly to the above, there are an alarm by voice or the like using the speaker 20 and an alarm using the display unit 5. FIG. 3 shows an example of an alarm by the display unit 5. In the present embodiment, since the device is a navigation device, it has map data. Therefore, as a basic screen, the control unit 18 reads out the road network information around the current position and displays the map around the current position. It has a function of displaying in part 5. Then, the warning screen 70 is displayed on the display unit 5 by superimposing it on the currently displayed screen (here, the map around the current position). FIG. 3 shows a display example of the warning screen 70 when the distance between the current position and the LH system, which is a kind of speed measuring device, which is one of the traffic monitoring points, becomes 500 m when the map 50 is displayed. Is shown. Further, a process of outputting a warning sound indicating the alarm type and the distance, such as "500 m ahead LH system", is performed from the speaker 20.

On the other hand, in order to realize the navigation function, the control unit 18 operates as follows. First, the database 19 stores road network information for navigation. The navigation information stored in the database 19 may store all the information about the whole country at the time of shipment, and the map data and the like are provided stored in the SD memory card 22 for each region. The user may prepare an SD memory card in which necessary map data and the like are stored, and install the SD memory card in the SD memory card slot 21 for use. The map data or the like stored in the SD memory card 22 may be transferred to the database 19 and stored, or the control unit 18 may access the SD memory card 22 and read it from the SD memory card 22 for use. good.

The control unit 18 has a function of reading road network information around the current position from the database 19 and displaying a map around the current position on the display unit 5. The control unit 18 can search for a route from a certain position to another by using the road network information. Further, the database 19 stores the telephone number database in which the telephone number is associated with the location information and name of the house, company, facility, etc. of the telephone number, and the address and the location information of the address are associated with each other. It has an address database. Further, in the database 19, the position information of the traffic monitoring point such as the speed measuring device is stored together with the type.
Further, the control unit 18 has a function of performing processing of a general navigation device.

For example, a map around the current position is displayed on the display unit 5 at any time, and a destination setting button is displayed. When the touch panel 8 detects the pressing of the position corresponding to the display position of the destination setting button, the control unit 18 performs the destination setting process. In the destination setting process, the destination setting menu is displayed on the display unit 5, and the user is urged to select the destination setting method. The destination setting menu has a telephone number search button and an address search button that prompt the user to select a destination setting method. When it is detected that the telephone number search button is pressed, the telephone number input screen is displayed, and the location information corresponding to the input telephone number is acquired from the database 19. When it is detected that the address search button is pressed, the address selection input screen is displayed, and the location information corresponding to the input address is acquired from the database 19. Then, the acquired position information is set as the position information of the destination, and the recommended route from the current position to the destination is obtained based on the road network information stored in the database 19. The road network information has the same data as the existing car navigation system. For example, it has multiple road links connecting points at branch points, etc., and the road link has its ID, whether it is a one-way street, the coordinates (each node) of each latitude and longitude of the start point and the end point, and the start point. It includes a list of IDs of road links connected to each end point, and information such as the type of road such as whether the road link is an expressway or a general road. As a method for calculating the recommended route, a known method such as Dijkstra's algorithm can be used.

Also, for example, route guidance is provided based on the recommended route. That is, it has a route guidance function that guides the direction of the recommended route when the current position acquired by the GPS receiver 12 approaches a branch point on the recommended route to a predetermined distance. For example, when the recommended route is 300 m ahead of the current position and the direction is to turn right, the speaker 20 outputs a sound saying "It is a right turn 300 m ahead" and displays a right arrow on the map.

Further, the control unit 18 of the navigation device limits the reception sensitivity of the microwave receiver 11, the characteristics of the radio wave received by the microwave receiver 11, the frequency of the radio wave received by the microwave receiver 11, and the microwave receiver 11. The characteristics of the received position, the video data received from the drive recorder 26 connected via the USB connection unit 23, the Bluetooth beacon signal emitted by the vending machine received by the Bluetooth module 24, and the vending machine received by the WiFi module 25. It has a function of suppressing an alarm based on the microwave received by the microwave receiver 11 based on at least one of the SSID information of the WiFi emitted by the device.

Which suppression is performed is performed on the microwave reception alarm function setting screen shown in FIG. The microwave alarm suppression function setting screen of FIG. 4 is displayed when a continuous touch for 2 seconds on a predetermined area on the map screen is detected from the touch panel 8. The predetermined area is a part corresponding to one area at the lower left of the area obtained by dividing the map screen into three equal parts in the vertical direction and four equal parts in the horizontal direction. The map screen is the default screen that is displayed when the startup process of this device is completed. In addition, the map screen is displayed even when there is no operation for 5 minutes on various setting screens, when the back button is pressed, or when the setting completion button is pressed.

As shown in FIG. 4, the microwave reception alarm function setting screen is provided with a character string display of the title of this setting screen, "microwave reception alarm function setting screen", at the top, and is subject to alarm suppression control below it. It is equipped with a display of the title character string of the "alarm suppression target item" which is an item setting field, a check box of 7 items described later and a character string of the item name, and further below that is an "alarm suppression method setting field" which is a setting field of the alarm suppression method. It includes a title of "Suppression method", three radio buttons to be described later, and a character string of the item name. Below that, there is a cancel button that displays "Cancel" and a character string on the left side, and a setting button that displays "Settings" and a character string on the right side. When switching from the map screen to the microwave reception alarm function setting screen, the contents of the current microwave reception alarm function setting are read from the database 19 and reflected in the display state of each check box and radio button. When the touch panel 8 detects that the cancel button has been pressed after the user has changed the state of the check box or radio button, the state of the check box or radio button is not reflected and the map screen remains as it was. Return to the display of. When it is detected from the touch panel 8 that the setting button has been pressed, the state of the check box and the radio button at the time of touch detection on the setting button is stored in the database 19 as a new setting and used for the alarm suppression process. That is, if the check box is checked, the suppression process of the items stored in the database 19 is performed by multitasking at the time of the microwave alarm process. When all the items are not checked, the suppression process is not performed at the time of alarm processing, and the microwave alarm is performed when the microwave is received by the microwave receiver 11.

The seven items of "alarm suppression target items" are, in order from the top, "suppression by limiting the reception sensitivity of microwaves", "suppression by the characteristics of radio waves received by microwaves", and "radio waves received by microwaves". "Suppression at the frequency of", "Suppression by the characteristics of the position where the microwave is received", "Suppression by the video data received from the drive recorder", "Suppression by the Bluetooth beacon signal emitted by the vending machine", "Automatic sales" It is equipped with a check box that can be displayed by switching the check on and off on the left side of each item name and the display of each item name of "Suppression by SSID information of WiFi emitted by the machine".

The three items of "alarm suppression method" are, in order from the top, "do not give a voice alarm at the time of suppression", "do not give all alarms at the time of suppression", and "display the suppression items without giving all alarms at the time of suppression". And a radio button that can select one of these three items. In the places where "suppress" and the suppression process are described below, the suppression described in that item is determined based on the information in the database 19 that stores the setting state of the radio button, and which of these three items is to be suppressed. I do. For example, when "Do not perform voice alarm at the time of suppression" is selected, a process of muting the sound output to the speaker 20 is performed as a suppression process. As a result, even if the signal receiving the microwave by the microwave receiver 11 is input to the control unit 18, the voice alarm of the microwave alarm is not made. As a result, only an alarm is given to the screen. When "Do not perform all alarms at the time of suppression" is selected, as suppression processing, processing for muting the audio output to the speaker 20 and processing for canceling the display of the alarm screen on the display unit 5 are performed. conduct. As a result, for example, if the microwave reception is started after the suppression process is started and the microwave reception is finished before the suppression process is finished, a warning is given during the microwave reception period. Will not be done. After the microwave is received, if the suppression process is started during the reception, an alarm is once issued, but when the suppression process is started, the alarm is not issued. When "Display suppression items without performing all alarms at the time of suppression" is selected, as suppression processing, along with processing to mute the audio output to the speaker 20, an alarm screen to the display unit 5 is displayed. Is canceled, and the character string with "middle" added to the end of the suppressed item name is displayed on the map screen. For example, when the suppression process of "suppression by the video data received from the drive recorder" is performed, the character string "suppression by the video data received from the drive recorder" is displayed on the front of the map. When multiple items are checked among the check boxes of 7 items, the timing of suppression by the suppression process of each item may be different, but since each suppression process is performed by multitasking, each suppression process When the suppression in is executed, the contents of the suppression are displayed respectively. Therefore, the position where the character string is displayed at the time of suppression in each suppression process is set to a different position in advance. In the present embodiment, the display positions and display contents of the item names of the seven items shown in FIG. 4 are displayed so as to be superimposed on the foreground, which is prioritized over the map and the alarm screen as the positions and display contents on the map of FIG. However, for example, the alarm suppression content display position adjustment process for adjusting and displaying the display position of the alarm currently being suppressed may be performed in the alarm screen illustrated in FIG.

(1) When the control unit 18 stores in the database 19 that the item "suppression by limiting the microwave reception sensitivity" is checked on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 stores it. A signal that lowers the reception sensitivity level compared to the case where the item is not checked is sent to the microwave receiver 11. When the microwave receiver 11 receives this signal, the reception sensitivity is reduced.

(2) When the control unit 18 stores in the database 19 that the item "suppression by the characteristics of the received microwave waves" is checked on the microwave reception alarm function setting screen of FIG. 4 is stored. , It is determined whether or not the modulation method of the received signal input from the microwave receiver 11 to the control unit 18 is FSK modulation, and if it is FSK modulation, the microwave alarm is not suppressed, and if it is not FSK modulation. Suppresses microwave alarms. Whether or not it is FSK modulation can be determined by a known configuration such as the configuration disclosed in Japanese Patent Application Laid-Open No. 2017-96728.

In this way, for example, the alarm by the unmodulated microwave emitted by the vending machine can be suppressed, and the alarm by the StepFM-modulated microwave emitted by the own vehicle or another vehicle can also be suppressed.

(3) The control unit 18 has a function of sweep-controlling the reception frequency of the microwave receiver 11. The frequency range for sweeping includes the frequency of microwaves emitted by vending machines and the frequency of microwaves emitted by other vehicles. If it is stored in the database 19 that the item "suppression at the frequency of the received radio wave of the microwave" is checked on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 controls the microwave. When the reception frequency set for the receiver 11 deviates from the frequency range emitted by the specific speed measuring device stored in the database 19 in advance, the alarm is suppressed. That is, the alarm is not suppressed when the microwave is received between the frequency range pq emitted by the specific speed measuring device inside the sweep frequency ab, and the alarm is received when the microwave is received between the ap and qb. Suppress.

In this way, it is possible to suppress an alarm based on a microwave that deviates from the frequency range of the speed measuring device. In particular, as in the present embodiment, an excellent effect is exhibited when the microwave receiver 11 or the control unit 18 is provided with a function of scanning (sweeping) the reception frequency of the microwave receiver 11 within a predetermined frequency range. do. That is, the sweep range does not change, and the alarm can be easily suppressed without changing various timing controls. In this way, it is particularly useful for microwaves from false alarm sources that do not overlap the frequency range of a particular speed measuring device, but are within a predetermined frequency range. The reception frequency may be a frequency corresponding to a control value for scanning, or a frequency counter may be provided to separately measure the frequency of the received radio wave. In the scanning of the reception frequency (sweep), the frequency of the radio wave scans the range including the range of each frequency emitted by the speed measuring device of different models, and also from the frequency range of all the models among the different models. The deviation range may be provided with a function of skipping and scanning. In this way, it is possible to suppress an alarm based on microwaves that deviates from the frequency range of the speed measuring device.

(4) When the database 19 stores that the item "suppression by the characteristics of the position where the microwave is received" is checked on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 stores it. When the current position of the vehicle acquired from the GPS receiver 12 approaches any position in the list of vending machine position information stored in the database 19, the alarm is suppressed.

In this way, false alarms due to microwaves emitted by vending machines can be suppressed. For example, the location of the vending machine is published on the vending machine sales promotion application, etc., so the position is memorized and the microwave is received while approaching the position. When it is in, the alarm is suppressed.

Further, the control unit 18 may perform control to lower the reception sensitivity of the microwave receiver 11 at the time of this suppression. In this way, false alarms due to microwaves emitted by vending machines can be suppressed. In this suppression, the control for lowering the reception sensitivity of the microwave receiver 11 is performed in addition to the suppression when it is stored that the item "suppression by limiting the reception sensitivity of microwaves" is checked. It is preferable to control to lower the reception sensitivity of the receiver 11.

Since the location of the vending machine is open to the public on the vending machine sales promotion application, etc., the position is memorized and the microwave is received in a state close to the position. When it is in, it is preferable to control it so as to lower the microwave reception sensitivity. The position of the vending machine stored in the database 19 should be limited to the position of the vending machine installed along the road, and other positions should not be entered. In this way, it is possible to prevent the alarm from being suppressed as if the vehicle is approaching the position of a vending machine installed other than along the road. Note that the database 19 stores the position of the vending machine regardless of whether it is installed along the road, and even if the position of the vending machine is approached, the close relationship with the position information of the road network data is far. In the case of a position other than a vending machine along the road, it may be controlled so as not to be "when approaching".

Further, the control may be performed so that the degree of restraint is different depending on whether the position of the vending machine stored in the database 19 is on the right side or the left side in the traveling direction of the vehicle. In this way, the alarm can be suppressed and the alarm can be issued more accurately. For example, when the sensitivity is controlled so that the vending machines on both sides of the road can receive the radio waves, the vending machines on both sides control the suppression, and the sensitivity is such that only the vending machines on the left side receive the radio waves. When the control is performed, the restraint is controlled at the position of the vending machine on the left side, and the restraint is not controlled at the position of the vending machine on the left side.

(5) When the database 19 stores that the item "suppression by video data received from the drive recorder" is checked on the microwave reception alarm function setting screen of FIG. 4, the control unit 18 drives the drive. It was determined that the video data transmitted from the recorder 26 is received via the USB connection unit 23, and that there is something that corresponds to the appearance characteristics of the device that emits microwaves that are an erroneous alarm source included in the received video data. When the microwave alarm is suppressed.

As a false alarm source, the characteristic information of the vehicle that emits microwaves to grasp the relationship with the vending machine and other vehicles in front and behind (using the drive recorder image including the corresponding vending machine and the corresponding vehicle by CNN) The trained model) is stored in the database 19, the trained model is read out on the RAM, the received video data is input to the trained model, the inference is executed, and the inference result is obtained. In the video data, the probability that the vending machine exists and the probability that the vehicle exists are obtained. If the probability that the vending machine exists is a predetermined value or more (for example, 80% or more), it is determined that there is something that corresponds to the appearance characteristics of the vending machine, and the probability that the vending machine corresponds to the vehicle is predetermined. If the probability is greater than or equal to the value (for example, 80% or more), it is determined that there is a characteristic of the appearance of the vehicle.

When the control unit 18 further corresponds to the appearance characteristics of the device that emits microwaves that are false alarm sources in the image captured by the drive recorder 26, the position corresponds to the front left side of the vehicle. , It may be suppressed more than the case where the position corresponds to the front left side of the vehicle. As a configuration for greatly suppressing, for example, it is preferable to greatly reduce the sensitivity. The inventors have found that when there is a vending machine on the left, it is closer to the vending machine and there is a greater demand for reduction of false alarms than when there is a vending machine on the right side. False alarms can be effectively suppressed.

(6) When the control unit 18 stores in the database 19 that the item "suppression by the Bluetooth beacon signal emitted by the vending machine" is checked on the microwave reception alarm function setting screen of FIG. 4 is stored. , When the Bluetooth beacon signal is received by the Bluetooth module 24, it is determined whether or not the Bluetooth beacon signal corresponds to any of the lists stored in the database 19 in advance, and if it corresponds, the microwave alarm is suppressed. Control.

(7) When the control unit 18 stores in the database 19 that the item "suppression by SSID information of WiFi issued by the vending machine" is checked on the microwave reception alarm function setting screen of FIG. Determines whether or not the SSID corresponds to any of the lists stored in the database 19 in advance when the SSID is received by the WiFi module 25, and if so, controls to suppress the microwave alarm. conduct.
If the above (6) and (7) are performed, the alarm can be suppressed and the alarm can be issued more accurately.

The connection between the purchaser's smartphone and the vending machine at the beverage vending machine is made wirelessly by Bluetooth. An internet connection is required for stamping processing by the smartphone app to the purchaser of beverages at the vending machine. At that time, the vending machine communicates with the Internet via the customer's smartphone. It is even better to determine if it is a Bluetooth signal for this purpose. The control unit 18 may suppress the alarm when it determines that it has received unique information (for example, a unique ID) emitted from the vending machine or the vehicle.

(8) In the above-described embodiment, the example using the microwave receiver 11 used in the conventionally sold radar detector has been described, but the microwave receiver 11 and the control unit 18 are used as a software defined radio. It may be configured. For example, the microwave receiver 11 is configured to output a so-called IQ signal (for example, the microwave receiver 11 uses a microwave receiver similar to the receiving circuit described in, for example, Japanese Patent Application Laid-Open No. 2019-61643). The control unit 18 takes in the IQ signal as IQ data by the AD converter provided in the control unit 18, and the control unit 18 generates a so-called waterfall image from the input IQ data in the SDR process. Then, whether or not to suppress the alarm is determined based on the feature information of the waterfall image and the feature information of the waterfall image of the radar wave that measures the speed of the vehicle when there is no false alarm source stored in the database 19 in advance. decide. In the waterfall image, the frequency of the microwave received by the microwave receiver 11 is set to one axis (for example, the lower limit frequency of the frequency band is set to one end of one axis, and the upper limit frequency of the frequency band is set to one axis. With the time axis as the other axis) and the time axis as the other axis, the predetermined signal characteristics (for example, signal strength) of the time at the frequency are defined as the predetermined color (when relatively weak, the first color (for example, blue), relative to each other. It is advisable to draw when the frequency is strong (a second color different from the first color (for example, red) is used to make a gradation between the two). At this time, each color corresponds to a wide dynamic range. The relationship with each signal characteristic (for example, signal strength) is set.

The characteristic information of the waterfall image of the radar wave for measuring the speed of the vehicle when there is no false alarm source stored in advance is a radar for measuring the speed of the vehicle when there is no false alarm source in a predetermined time range. A machine-learned trained model may be used, with the wave waterfall image as the alarm target and the waterfall image when there is an erroneous alarm source in a predetermined time range as the non-alarm target. Machine learning is particularly preferably performed by deep learning (DL), particularly by CNN, and the trained model is preferably a model learned by deep learning (particularly a component of CNN). For example, it may be composed of SDR waterfall + DL (CNN, etc.).

Determine whether to suppress the warning based on the characteristic information of the waterfall image generated by SDR and the characteristic information of the waterfall image of the radar wave that measures the speed of the vehicle when there is no false alarm source stored in advance. The configuration is such that a waterfall image of a radar wave that measures the speed of a vehicle when a microwave is received and there is no false alarm source in a predetermined time range is an alarm target, and the warning target is in a predetermined time range. When the result inferred using a machine-learned trained model is determined to be an alarm target (for example, the probability of being an alarm target is predetermined) with the waterfall image when there is an erroneous alarm source as a non-alarm target. When an alarm is issued without suppressing the alarm (when the value is above the threshold value) and the inferred result is determined to be a non-alarm target (for example, the probability of being a non-alarm target is equal to or greater than a predetermined threshold value). Case) It is advisable to suppress the alarm. For example, this suppression process may be the same process as the process described in (5) above.
(9) Summary

According to the above-described embodiment, it is possible to provide a radar detection function superior to the conventional one for the user. For example, we installed this machine in a vending machine that emits microwaves, which is a new false alarm source that has become a problem these days, and in vehicles that emit microwaves in order to understand the relationship with other vehicles in front and behind. When a vehicle approaches, false alarms can be reduced as compared with the conventional case. In the same frequency range as the microwave emitted from the speed measurement system, the microwave emitted by the vending machine for human feeling, etc., and the vehicle emits to grasp the relationship with other vehicles in front and behind. There are microwaves and the like, and problems such as issuing an alarm based on these receptions are increasing, but such problems can be further reduced.

In particular, the limitation of the reception sensitivity of the microwave receiver 11, the characteristics of the radio wave received by the microwave receiver 11, the frequency of the radio wave received by the microwave receiver 11, and the position where the microwave receiver 11 is received. Characteristics, suppression of alarms based on input information from drive recorder 26, Bluetooth module 24, WiFi module 25, which is not microwave receiver 11, is for the vending machine or vehicle to understand the relationship with other vehicles in front and behind. This is done to detect the emitted microwaves. Compared to conventional automatic doors, vending machines are for unmanned sales, so many are installed in the suburbs where speed control is likely to occur. In addition, since the vehicle that emits microwaves in order to grasp the relationship with other vehicles in front and behind moves by itself, there is an unprecedented characteristic that it is uncertain where it is detected. If it is configured as in this embodiment, the alarm always sounds due to the vending machine or such a vehicle, so that the problem of being noisy or not knowing the original alarm can be alleviated. In addition, since the vending machine and such a vehicle always sound an alarm, it is possible to solve the problem that the original speed control radar alarm is not given by switching to a setting that does not give an alarm. It is possible to properly perform the original alarm while avoiding such false alarms based on microwaves from the vending machine or the vehicle that hinders the original use.

According to the present embodiment, it can be set not to give an alarm, or it can be set to be difficult to recognize as compared with the case where the alarm is not suppressed, such as not giving a voice alarm as a screen-only alarm.

It should be noted that the suppression of the alarm may be made smaller in the case where the alarm is performed by sound than in the case where the alarm is not suppressed. For example, in the case where the alarm is displayed on the screen, the size of the alarm display may be set to be less noticeable (for example, smaller display) than when the alarm is not suppressed. With sound

As the suppression of the alarm, the sensitivity may be reduced, the alarm may be canceled, or the alarm content may be changed as in the present embodiment. For example, the display unit 5 indicates that there is an erroneous alarm source (for example, a vending machine). It may be notified by displaying it on. As in the embodiments (5), (6), and (7), the type of the false alarm source can be identified, and the type of the identified false alarm source (“Detecting the vending machine of the false alarm source” and “False alarm” A display such as "Detecting the source vehicle") may be further displayed on the display unit 5.

The scope of the present invention is not limited to the configuration explicitly described in the specification, but also includes a combination of various aspects of the present invention disclosed in the present specification. Of the present invention, the configuration for which a patent is sought is specified in the appended claims, but even if the configuration is not currently specified in the claims, it is disclosed in the present specification. We intend to make this configuration the scope of claims in the future.

The invention of the present application is not limited to the configuration described in the above-described embodiment. The components of each of the above-described embodiments and modifications may be arbitrarily selected and combined. Further, any component of each embodiment or modification, and any component described in the means for solving the invention or a component described in the means for solving the invention are embodied. And may be configured in any combination. We also intend to acquire the rights to these in the amendment or divisional application of the present application. Even if there is a description of "when" or "when", it is not described as a configuration limited to that case or at that time. It also discloses these cases and unusual configurations, and has the intention to acquire the rights. In addition, the places where the description is accompanied by an order are not limited to this order. It also discloses a configuration in which some parts have been deleted or the order has been changed, and it has the intention of acquiring rights.

In addition, by changing to a design registration application, we have the intention to acquire the rights to the entire design or partial design. Although the entire drawing of the device is drawn with solid lines, it is a drawing that includes not only the whole design but also the partial design requested for a part of the device. For example, it is a drawing which includes a part of the device as a partial design regardless of the member as well as a part of the member of the device as a partial design. As a part of the device, it may be a part of the device or a part of the member. Not only the whole design, but also the partial design in which any part of the solid line part of the drawing is a broken line part is intended to be granted the right. In addition, regarding the modules, members, parts, etc. inside the housing of the device, those displayed in the drawings are all independently subject to transactions, and similarly, the application for design registration is filed. They are willing to make changes and acquire rights.

2 Device body 3 Cradle 4 Case body 5 Display 6 Cradle body 7 Pedestal 8 Touch panel 9 Alarm lamp 11 Microwave receiver 12 GPS receiver 13 Wireless receiver 18 Control 19 Database 20 Speaker 21 SD memory card slot 22 SD memory card 23 USB connection 24 Bluetooth module 25 WiFi module 26 Drive recorder

Claims (13)

A microwave receiving means capable of receiving microwaves in a predetermined frequency range including the frequency of radar waves for measuring the speed of a vehicle, and
It is provided with a control means having a function of controlling the microwave receiving means and a function of performing control for issuing an alarm when the microwave is received by the microwave receiving means.
The control means limits the reception sensitivity of the microwave receiving means, the characteristics of the radio wave received by the microwave receiving means, the frequency of the radio wave received by the microwave receiving means, and the position where the microwave receiving means receives. A system characterized by having a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on at least one of characteristics and input information from another means other than the microwave receiving means. The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on the characteristics of the radio wave received by the microwave receiving means.
The characteristic of the radio wave is a radio wave modulation method, and when the radio wave modulation method is not FSK modulation, claim 1 is characterized in that it has a function of suppressing an alarm based on the radio wave received by the microwave receiving means. Described system. The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means.
The predetermined frequency range includes the frequency of microwaves emitted by vending machines and the frequency of microwaves emitted by other vehicles.
The system according to claim 1 or 2, further comprising a function of suppressing an alarm when the frequency of the radio wave deviates from the frequency range emitted by a specific speed measuring device. The control means has a function of suppressing an alarm based on the frequency of the radio wave received by the microwave receiving means and a function of scanning the reception frequency of the microwave receiving means, and scanning the reception frequency is performed by scanning the radio wave. Has a function of scanning a range in which the frequency of each of the different models includes a range of each frequency emitted by a speed measuring device, and skipping a range deviating from the frequency range of all of the different models. The system according to any one of claims 1 to 3, characterized in that. A storage means for storing the location information of vending machines,
The control means has a function of acquiring the current position of the vehicle and a function of suppressing an alarm based on the characteristics of the received position of the microwave receiving means, and has the function of suppressing the alarm based on the characteristics of the received position of the microwave receiving means. The system according to any one of claims 1 to 4, further comprising a function of suppressing an alarm when approaching the position of the vending machine stored in the storage means. The control means includes a function of acquiring the current position of the vehicle, a function of limiting the reception sensitivity of the microwave receiving means, and a function of suppressing an alarm based on the characteristics of the received position of the microwave receiving means. According to claim 1, as a characteristic of the receiving position of the microwave receiving means, a function of lowering the receiving sensitivity is provided as a limitation of the receiving sensitivity when approaching the position of the vending machine stored in the storage means. The system according to any one of 5. The system according to claim 5 or 6, wherein the position of the vending machine is the position of a vending machine installed along a road. The system according to any one of claims 5 to 7, wherein the control is performed so that the degree of restraint is different depending on whether the position of the vending machine is on the right side or the left side in the traveling direction of the vehicle. .. The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on input information from another means other than the microwave receiving means.
As the other means, an imaging means capable of photographing the appearance of a device that emits a microwave that is a false alarm source from the vehicle is provided, and the microwave that is a false alarm source stored in advance in the image captured by the imaging means. The system according to any one of claims 1 to 8, wherein the control for suppressing the alarm is performed when there is a feature of the appearance of the device for emitting the alarm. The imaging means is installed so as to be able to photograph the front of the vehicle, and is based on the position of a device that corresponds to the appearance characteristics of a device that emits microwaves that are a false alarm source in the image captured by the imaging means. The system according to claim 9, wherein the mode of suppressing the alarm is changed. The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on input information from another means other than the microwave receiving means, and as the other means, a micro that becomes an erroneous alarm source. Equipped with a radio wave detection means that detects radio waves other than microwaves emitted by a device that emits waves.
Any of claims 1 to 10, wherein when the radio wave detecting means detects a radio wave other than the microwave emitted by a device that emits a microwave that is a false alarm source, control is performed to suppress the alarm. The system described in Crab. The control means has a function of suppressing an alarm based on a radio wave received by the microwave receiving means based on the characteristics of the radio wave received by the microwave receiving means.
At least one of the microwave receiving means and the controlling means includes an SDR (Software Defined Radio).
The control means is based on the feature information of the waterfall image generated by the SDR as the identification of the radio wave and the feature information of the waterfall image of the radar wave for measuring the speed of the vehicle when there is no false alarm source stored in advance. The system according to any one of claims 1 to 11, wherein the system determines whether or not to suppress the alarm. A program for causing a computer to realize the function of the control means of the system according to any one of claims 1 to 12.

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