JP5246614B2 - Automotive electronics - Google Patents

Description

  The present invention relates to a microwave detector, a target detection device, and other in-vehicle electronic devices.

  2. Description of the Related Art A target detection device (microwave detector) that detects and notifies a microwave transmitted from a vehicle speed measurement device is known. This target detection device recognizes the reception of microwaves from the vehicle speed measurement device even when it receives microwaves sent from a malfunction source such as an automatic door of a convenience store using the same frequency as the speed measurement device. As a result, there is a problem that an unnecessary alarm is issued. In view of such circumstances, recent target detection devices store position information of malfunction sources, recognize the position of the vehicle by GPS, and detect the microwave when the vehicle is positioned at the malfunction source. Also, it is possible to prevent unnecessary alarms from being issued by controlling so as not to generate alarms.

  Further, the device for measuring the speed of the vehicle is not limited to the one using the above-mentioned microwave. For example, a vehicle traveling on the road is detected by two loop coils embedded and installed under the road. Some vehicles measure based on a time difference between detection signals output from two loop coils. This type of vehicle speed measurement device cannot be detected by the target detection device using the above-described microwave detection because microwaves are not output.

  Therefore, the target object detection device that stores and holds the position information of the detection object and issues an alarm when the position of the vehicle detected by the GPS and the position of the detection object are in a predetermined relationship. (For example, Patent Document 1). In addition, if location information such as accident occurrence points is stored in memory, when the vehicle reaches around the accident occurrence point, it notifies the driver of the fact and contributes to safe driving can do. In this way, the target to be registered is not limited to a specific object, and various objects can be applied.

  Since this type of in-vehicle electronic device is retrofitted to a vehicle, it receives power from a vehicle side such as a cigar socket or a power supply cord, or is provided with a solar panel (solar cell) and a battery (storage battery), The power generated by the solar panel is stored in a battery and used as a power source. The power storage for the battery is not limited to the solar panel. For example, a power supply cord is connected to a cigar socket, and the power supplied from the vehicle side via the cable is stored in the battery.

On the other hand, this type of in-vehicle electronic device includes a type with a screen display unit for displaying a screen such as a liquid crystal or an EL, and a type without such a screen display unit. In the case of a type that does not have a screen display unit, a light emitting body such as an LED is often provided to perform visual notification. In either case, auditory alerts such as voice and buzzer are performed. The type with a screen display unit makes it easy to understand the contents of the alarm by looking at the screen display content, and keeps displaying the alarm for a predetermined period of time, so you can be sure that you will not miss it as you would with a voice notification. There is an effect that the contents can be known.
JP 2006-46976 A

  As described above, the type with a display screen has an advantage that various types of information can be reliably notified to the driver. However, since the power consumption of the screen display unit is large, when it is driven only by the built-in battery without being connected to a cigar socket etc., the battery runs out in a short time compared to the type without the screen display unit. . Then, it is necessary to connect the vehicle-mounted electronic device to a cigar socket or the like using a power supply cord and charge the battery. In recent years, in particular, the display screen has become more precise, the screen size has been increased, and the display content has been improved for reasons such as increasing the types and contents of alarm display and making the display content easier to see. However, due to these factors, the power consumption of the screen display unit is further increased, and the above problem has become more prominent.

  On the other hand, in a frequent area such as around the driver's home, the driver knows the installation position of the two speed measurement devices and the position of the contents to be notified by other in-vehicle electronic devices, and may not require an alarm. In such a case, there is a person who feels bothersome if a uniform alarm is issued when he / she comes near a registered target. For such people, there are also in-vehicle electronic devices equipped with a mode in which a warning is not issued in a registered area. In such a case, in order to avoid battery consumption, it is conceivable to turn off the display screen in the registered area.

  Such a method of turning off the display screen is preferable in that power consumption can be reduced and a period of time when the battery runs out can be extended. However, as described above, in the case of an in-vehicle electronic device having a screen display unit with a large screen size as described above, the screen disappears, and the in-vehicle electronic device with a large black screen display unit is It will be in the driver's field of view and it will not look great.

  Furthermore, in order to realize the function of turning off the display screen, it is necessary to register the area to be turned off in advance, and the setting is complicated and flexible (simply at any point, easily The display request is turned off).

  The present invention relates to an in-vehicle electronic device having a screen display unit, which can reduce power consumption as compared with the prior art, has good operability, and can contribute to more comfortable driving. The purpose is to provide.

  In order to achieve the above-described object, an in-vehicle electronic device according to the present invention includes (1) a sound notification unit for performing notification by sound, a display unit for displaying notification by a display screen, and the respective notifications. An open state in which the display unit is movably attached to the case body, the display screen of the display unit is exposed and visible from the outside, and the display The display unit is configured to take a closed state in which the display screen is not exposed to the outside and cannot be visually recognized from the outside, and the control unit also performs notification by screen display when in the open state. Occasionally, it was made to operate so as not to give notification by screen display.

  As in the embodiment, the sound notification unit and the control unit may be housed in the case body. In particular, this configuration is preferable because the balance of weight and circuit arrangement can be well balanced. Of course, the sound notification unit and / or the control unit may be incorporated separately from the case main body.

  In the embodiment, the movement of the display unit is a forward / reverse rotation movement within a predetermined angle range. However, the display unit may be slid in a plane parallel to the display screen of the display unit. It suffices that the display panel 3 of the embodiment can take at least two positions, a state visible from the outside and a state invisible.

  When the display unit (screen) is closed, notification by screen display is not performed, so that power consumption can be significantly reduced. In addition, the user only needs to close the screen, and there is no need to perform a special operation such as a switch operation for stopping the screen display. Moreover, since the screen portion can be closed, the driver is not distracted by the screen. Furthermore, since the notification is made by sound even when the display unit is closed as described above, the notification content is not displayed, so that the notification content is not known. Therefore, the power consumption of the vehicle-mounted electronic device can be reduced, and the user-friendly electronic device can contribute to safer, safer and more comfortable driving.

  (2) A storage battery that has a connector that allows a power supply cord to be attached to and detached from an external power source, and that stores the power generated by the solar cell (corresponding to the “solar panel 4” in the embodiment) and the solar cell. Can be included. Of course, when power is supplied from an external power supply, the storage battery may be charged with the power.

  As a power source for the in-vehicle electronic device, for example, an external power source (a power source provided in the vehicle: a battery or the like) can be used. However, the vehicle-mounted electronic device includes a solar battery and a storage battery, and exhibits a particularly excellent effect in a configuration in which the power generated by the solar battery is used in the storage battery. That is, when the screen of the display unit is closed, notification by screen display is not performed, so that consumption of energy stored in the storage battery can be suppressed.

  In this way, when driving on a road that normally passes in commuting, living area, etc., you can close the display screen and know the contents of the notification by sound, for example when going out on a holiday When driving on roads that do not normally pass, information can be obtained by opening the screen and notifying both the screen display and sound. In such a usage method, since it is usually used with low power consumption, it can store enough power in the storage battery, and when the screen is opened and used, the stored power is used to display the screen. It is also possible to perform the notification by a long time.

  In addition, usually the screen is closed and the vehicle power supply cord is disconnected, allowing operation for a long time only with the energy of the built-in solar cell and storage battery. It can also be operated for a long time by receiving power supply from the power supply cord. In this way, the vehicle power supply cord can usually be used without obstructing, and it can be stably operated for a long time by receiving power supply from the vehicle only when screen display is required. It becomes. Therefore, an in-vehicle electronic device that is easy to use can be realized.

  (3) When the control unit is driven by power supply from the solar battery and the storage battery without receiving power supply from the external power source, the control unit performs control so as to stop the notification by the screen display. It is good to make it. This is preferable because power consumption can be suppressed.

  (4) When the display unit is in a closed state, a sub-display unit that consumes less power than the display unit is provided at a position that is visible from the outside, and the control unit does not perform notification by the screen display. It is preferable to perform notification by the sub display unit. In the embodiment, the sub display unit is realized by an alarm lamp 13 such as an LED. Further, for example, a large screen display screen may be used as the display screen (main display screen), and a display screen smaller than the display screen may be used as the sub display screen. For example, the main display screen always turns on the backlight, while the sub-display screen does not have the backlight, or even if it has the backlight, the backlight is not turned on unless there is an instruction from the user. It is good as a thing. In the case where the sub display unit is composed of a self-luminous display such as an EL, it is turned on when the main display screen is closed, but the prime number may be reduced. In this way, the driver can be notified by the sub display section when the display screen portion is closed.

  (5) A connector that allows a power supply cord (“cigar plug cord” in the embodiment) to be connected to an external power source to be detachable, a solar cell, and a storage battery that stores at least the electric power generated by the solar cell, Even if the display unit is in a closed state, it is provided with a sub-display unit that consumes less power than the display unit at a position that is visible from the outside, and without receiving power supply from the external power source, from the solar battery and the storage battery In the case of being driven by the power supply, the control unit may control to stop notification by the screen display and perform notification by the sub display unit. If it does in this way, power consumption can be suppressed and the operation time based on a solar cell and a storage battery can be lengthened.

  (6) On the premise of the inventions of (3) and (5) above, whether the notification is made by the screen display in the open state when driven by power supply from the solar battery and the storage battery Whether or not to be switched can be set by a user setting, and the control unit may perform an operation based on the setting. Thereby, selection according to the user's preference becomes possible.

  (7) A display microcomputer for controlling the display of the display unit is provided, and the display microcomputer outputs predetermined information to the display unit in accordance with an instruction from the control unit, and performs notification by the screen display. If not, the display microcomputer may be turned off or in sleep mode. This is preferable because power consumption by not only the display screen but also the display microcomputer can be suppressed.

  (8) Based on the above inventions (2), (3), (5), and (6), a warning is issued if the display section is open when no external power is supplied. Means may be provided. As a warning, since a screen display is made when the display unit is open in a state where the vehicle power is not supplied, a warning that the battery does not have much may be notified.

  (9) On the premise of the inventions of (2), (3), (5), (6), and (8) above, the solar cell may be arranged on the back side of the display screen of the display unit. By arranging the display unit (display panel of the embodiment) and the solar cell back to back, it is possible to reduce the size of the device. Further, by bonding the display module and the solar cell back to back, the strength can be obtained, the reinforcing plate can be reduced, and the display can be thinned.

  (10) The case main body is provided with a switch portion, and the switch portion is exposed to the outside when the display portion is in an open state, and is covered with the display portion when the display portion is in a closed state. Good. By closing the display unit, it is possible to make it impossible to operate the switch unit. In addition, since the switch portion is not provided in a part that is always exposed, the degree of freedom in arrangement layout is increased and a large installation area can be taken. As a result, when the members constituting the switch unit are made larger or composed of a plurality of members, the intervals between the members can be widened, and the operability is improved.

  (11) It has a function of detecting the current position by GPS, the display unit is provided on one end side of the case body, the GPS antenna is provided on the other end side, and the GPS antenna is installed in the open state. It may be set so that the display portion does not cover the portion. In this way, even when the screen is opened, GPS radio waves can be received well, and the vehicle position information can be acquired as needed.

  (12) An information acquisition unit may be provided, and when the display unit is in the closed state, the interval of the intermittent operation of the information acquisition unit may be configured to be larger than that in the open state. If it does in this way, power consumption when a display part is made into a closed state can be reduced. On the other hand, when the display unit is in the open state, information to be displayed on the display screen can be updated and displayed with high frequency based on the information acquired by the information acquisition unit. An example of the information acquisition unit is a wireless reception unit. Examples of the wireless receiver include a GPS receiver, a microwave receiver, and a scanner.

  In the present invention, in an in-vehicle electronic device provided with a screen display unit, power consumption can be suppressed more than before, operability can be improved, more comfortable driving can be contributed, and usability can be improved.

  1 to 3 show a preferred embodiment of the present invention. As shown in FIG. 1, the case body 1 has a flat shape with a substantially rectangular plane, and the upper surface of the case body 1 is configured to be higher on the front side and lower on the rear side. That is, the thickness (height) h1 of the front portion 1a is set larger than the thickness (height) h2 of the rear portion 1b. In the present embodiment, the front side refers to a side located on the front side (front) of the vehicle when the in-vehicle electronic device is placed at a predetermined position (for example, on the dashboard) in the vehicle interior. Conversely, when viewed from the driver, the rear side of the in-vehicle electronic device comes to the front.

  A flat rectangular display panel storage case 2 is disposed above the rear portion 1b that is one step lower than the case body 1. The display panel storage case 2 is attached to the case body 1 by a hinge mechanism 5 in the vicinity of the boundary of the rear portion 1b on the front portion 1a side so as to be rotatable forward and backward within a predetermined angle range. Thereby, the standing state as shown in FIG. 1 (a) and the falling state as shown in FIG. 1 (b) can be taken. As shown in FIG. 1B, in the state in which the display panel storage case 2 is closed, the display panel storage case 2 fits within a step with the front portion 1a on the rear portion 1b of the case main body 1, and the main body. The entire case 1 and the display panel storage case 2 are made to look like one casing. Strictly speaking, the thickness of the display panel storage case 2 is larger than the difference in thickness between the front portion 1a and the rear portion 1b (h1-h2). In such a case, the rear side becomes thicker, but the difference is set appropriately so that it can be seen integrally.

  The display panel 3 is attached to one surface of the display panel storage case 2 (the lower surface facing the case main body 1 when in a collapsed state). The display panel 3 is realized by using, for example, an organic EL display or a liquid crystal display, and is electrically connected to a processing unit built in the case main body 1 by a flexible cable 3a as shown in FIG. Thereby, in the state in which the display panel storage case 2 is tilted (closed), the display panel 3 faces the upper surface of the rear portion 1b of the storage case 2 and is not visible from the outside. When the display panel storage case 2 is erected and opened, the display panel 3 is also erected and exposed, and is visible from the rear side, that is, the driver side.

  Furthermore, in the present embodiment, the solar panel 4 is attached to the other surface of the display panel storage case 2 (the surface that is not exposed to the case body 1 when it is in a collapsed state and is always exposed). The solar panel 4 is stored in the display panel storage case 2 in a state of being back-to-back with the display panel 3. That is, the display panel 3 and the solar panel 4 are stacked via the rectangular frame spacer 5. As a result, it is possible to reduce the size of the device, and also to exert strength as a function of reinforcing members of each other, so that it is not necessary to provide a separate reinforcing plate, or even if it is temporarily provided Can be configured thinly as a whole.

  The spacer 5 is provided because the electronic component 3b mounted on the display panel 3 does not interfere with the solar panel 4. The solar panel 4 is electrically connected to a printed wiring formed on the display panel 3 through a conductive member such as a terminal pin 6 and is electrically connected to a charging circuit for a storage battery provided in the case main body 1 by a flexible cable 3a.

  A switch portion 7 is disposed at the front end of the upper surface of the rear portion 1 b of the case body 1. The switch unit 7 is exposed to the outside when the display panel storage case 2 is raised and opened (opened), and can be operated by the user. When the display panel storage case 2 is tilted and closed (closed), The display panel storage case 2 is covered with the display panel storage case 2 and cannot be touched by the user, and cannot be operated. In other words, by keeping the display panel storage case 2 in a closed state, it becomes impossible to operate the switch unit 7 including during operation, so that the switch unit 7 is accidentally touched and unexpected processing / operation is performed. It can be prevented from being performed. Further, in the case of this type of conventional device, the switch unit 7 is always exposed, so that it is inevitably reduced in size to secure space for the solar panel and the display screen, and the operability is deteriorated. However, in this embodiment, there is no such limitation, the size and shape of each button can be made relatively large, and the buttons can be separated from each other. It is possible to suppress as much as possible the occurrence of erroneous operations such as pressing multiple buttons at the same time, or pressing another button by mistake.

  A microwave receiver 10 and a radio receiver 11 are arranged inside the front part of the front part 1 a of the case body 1, and a GPS receiver 12 is arranged inside the upper part of the front part 1 a of the case body 1. An alarm lamp 13 is arranged on the rear surface of the rear portion 1b of the case body 1. The alarm lamp 13 is composed of LEDs of a predetermined color. A mark or the like indicating the content of the alarm may be described in the vicinity of each alarm lamp 13. In addition to the alarm lamp 13, a lamp (light emitting means) that is used other than an alarm such as a pilot lamp indicating ON / OFF of the power source is also prepared.

  In the present embodiment, the display panel storage case 2 is provided on the rear portion 1b side of the case main body 1, and the GPS receiver 12 is provided on the front portion 1a side of the case main body 1, so that the display as shown in FIG. Even when the panel storage case 2 is erected, most of the front portion 1a is not covered by the display panel storage case 2, so that even when the display panel is opened, the GPS radio wave is received well. The vehicle position information can be acquired at any time.

  Further, a power switch 14 and a DC jack 15 are disposed on one side surface of the case body 1. The case body 1 also includes a speaker 16, a wireless receiver 11, a remote control receiver 20, and the like. Further, information on the target (position information including longitude / latitude, type information, etc.) is stored in the database 19. The database 19 can be realized by a nonvolatile memory (for example, EEPROM) in the microcomputer of the control unit 18 or externally attached to the microcomputer. In the database 19, information related to a certain target at the time of shipment (position information including longitude and latitude, type information, etc.) is registered. The database 19 can be realized by a nonvolatile memory (for example, EEPROM) in the microcomputer of the control unit 18 or externally attached to the microcomputer. Further, various position information can be registered / updated in the database 19 according to use.

  A display microcomputer 17 is connected to the control unit 18, and the display panel 3 is connected via the display microcomputer 17. That is, the control unit 18 sends the contents to be displayed to the display microcomputer 17. The display microcomputer 17 controls and operates so as to output a predetermined display screen to the display panel 3 based on the information received from the control unit 18.

  The microwave receiver 10 receives a microwave of a predetermined frequency band and sends the received signal to the control unit 18. The predetermined frequency band is, for example, a frequency band including a microwave frequency emitted from the vehicle speed measuring device. The wireless receiver 11 receives incoming radio waves having a predetermined frequency. The remote control receiver 20 performs data communication with the remote control (portable device: slave device) 21 and performs various settings for the in-vehicle electronic device. The switch unit 7 is also connected to the control unit 18 so that the same setting as that of the remote controller 21 can be performed. The GPS receiver 12 receives the GPS signal, determines the current position from the received GPS signal, and sends position information (mild, latitude) of the determined current position to the control unit 18.

  The DC jack 15 is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of the vehicle via the cigar plug cord so that power can be supplied. The control unit 18 acquires power supply presence / absence information as to whether or not the terminal of the cigar plug cord is inserted into the DC jack 15 or whether or not power is supplied. This power supply presence / absence information may be recognized, for example, by providing a sensor for detecting that the terminal of the cigar plug cord is mechanically inserted in the DC jack 15 and detecting the DC jack 15. It is possible to detect the terminal voltage at the terminal and determine whether or not the voltage from the vehicle battery is applied (supplied from the cigar socket through the cigar plug). it can. When it is detected that the cigar plug cord is mechanically inserted into the DC jack 15, the cigar plug cord is not firmly inserted into the cigar socket, and as a result, no power is supplied from the vehicle. Since there is a possibility, it is preferable to adopt a configuration that reliably detects that power is being supplied from the vehicle. The power supply presence / absence information can be stored and managed as a flag, for example.

  Furthermore, this vehicle-mounted electronic device is provided with a sensor for determining the open / closed state of the display panel storage case 2. Specifically, a magnetic sensor is provided at a predetermined position in the rear portion 1 b of the case body 1, and a magnet is mounted at a corresponding predetermined position in the display panel storage case 2. Thereby, when the display panel storage case 2 is closed, the distance between the magnetic sensor and the magnet is reduced, and the output of the magnetic sensor is turned on. On the contrary, when the display panel storage case 2 is raised and opened, the distance between the magnetic sensor and the magnet is increased, and the output of the magnetic sensor is turned off. Therefore, the installation position of the magnet and the magnetic sensor may be reversed from the above from the output of the magnetic sensor. In addition, since the speaker 16 is installed in the rear portion 1b, it is necessary to prevent the magnetic sensor from being affected by the magnet of the speaker 16. In this embodiment, the open / close state is detected using a magnetic sensor. However, the present invention is not limited to this, and for example, a mechanical detection sensor such as a limit switch or other various sensors is used. be able to.

  Further, the control unit 18 executes predetermined processing based on information input from the above various input devices (receiver etc.) and uses output devices (display panel 3, alarm lamp 13, speaker 16 etc.). To output predetermined alarms and messages. As the predetermined processing for determining the alarm content based on the information input from the input device, the same basic processing as that in the conventional art can be used. That is, when a signal having a certain condition is received / acquired, a corresponding alarm is output. Note that the alarm using the speaker 16 includes a buzzer and voice.

  In the present embodiment, the control unit 18 switches and controls the alarm means based on the open / closed state (magnetic sensor output) of the display panel storage case 2 and the power supply presence / absence information. That is, when the display panel storage case 2 is in an upright and open state, the control unit 18 issues an alarm by a screen display using the display panel 3, and when the display panel storage case 2 is in a closed state. The display panel 3 is controlled so as not to issue an alarm by screen display (the display panel 3 is turned off). Accordingly, when the alarm is performed using the screen display, the alarm lamp 13 is not activated. When the mode is not performed using the screen display, the alarm lamp 13 is activated. Note that the alarm using the speaker 16 is performed in any state.

  When the screen is closed, the notification by the screen display is not performed, so that power consumption can be significantly reduced. Further, the control unit 18 controls the power supply to the display microcomputer 17 to be stopped when the display panel storage case 2 is closed and the alarm by the screen display is not performed. Thereby, further suppression of power consumption can be performed.

  As a user operation for performing the switching control, the user only needs to close the screen, and there is no need to perform a special operation such as a switch operation for turning off the screen display. In addition, since the screen portion can be closed, the driver is not distracted by the screen and there is no danger. In this way, even when the screen portion is closed, the notification by the speaker 16 and the alarm lamp 13 is made. Therefore, the notification content is not displayed on the screen, so that the notification content is not understood. Furthermore, when the display panel storage case 2 is closed, the display panel storage case 2 looks like a flat rectangular body as a whole, and a warning is given by sound (including sound) and a lamp. It becomes a form similar to an on-vehicle electronic device that detects a vehicle speed measuring device of a type, and can transmit sufficient information without a sense of incongruity to the driver.

  According to the present embodiment, when driving on a road that normally passes in commuting or living areas, the display panel storage case 2 (display panel 3) is closed and the notification content can be known by sound (alarm lamp 13). In addition, when driving on a road that does not normally pass, such as when going out on holidays, more information can be obtained visually by opening the display panel storage case 2 and informing the screen display. In such a usage method, since the power is normally used with low power consumption, sufficient power can be stored in the storage battery, and when the display panel storage case 2 is opened and used, the stored power is used. Thus, it is possible to perform notification by screen display for a long time.

  Normally, the screen is closed and the cigar plug cord is removed from the DC jack 15 so that it can operate for a long time only with the energy of the solar panel 4 and the storage battery, and the screen is opened and the DC jack only when going out. It is also possible to connect a cigar plug cord to 15 and receive a power supply from the battery of the vehicle to operate for a long time. In this way, the cigar plug cord can be used normally without being disturbed, and it can be stably operated for a long time by receiving power supply from the vehicle only when screen display is required. . Therefore, an in-vehicle electronic device that is easy to use can be realized.

  Furthermore, in this embodiment, an alarm lamp (LED) 13 is provided as a sub-display unit at a position that can be seen even when the display panel storage case 2 is closed, and an alarm by the alarm lamp 13 is displayed when the display panel storage case 2 is closed. -Since the notification is made, the driver can receive both visual and auditory warnings / notifications although there is no warning by screen display.

  Furthermore, in this embodiment, the control part 18 is controlled so that the aspect of an alarm may differ based on power supply presence information. Specifically, when the power supply presence / absence information is ON (the power is supplied from the vehicle), the control unit 18 controls the display panel 3 according to the open / closed state of the display panel storage case 2 as described above. The alarm by the screen display used and the alarm by the alarm lamp 13 are switched and controlled. On the other hand, when the power supply presence / absence information is OFF (no power is supplied from the vehicle), the control unit 18 issues an alarm by screen display using the display panel 3 regardless of the open / closed state of the display panel storage case 2. First, the alarm lamp 13 is controlled so as to give an alarm. That is, when the power supply presence / absence information is OFF, even if the display panel storage case 2 is raised, the display panel 3 remains off and no alarm is given by screen display. By doing in this way, the operation possible time at the time of making it drive only with the energy of the solar panel 4 and a storage battery can be lengthened.

  In addition, it is premised on an in-vehicle electronic device having a function of preventing an alarm by a screen display when power is not supplied from the vehicle as described above. As with the case where power is supplied, a function is added to control switching between alarms by screen display using the display panel 3 and alarms by the alarm lamp 13 according to the open / closed state of the display panel storage case 2 even when the power supply presence / absence information is OFF. You may do it. In this way, it is possible to select various display forms according to the user's preference. If the alarm is set to display on the screen even if the power supply presence / absence information is OFF, the drive time without power supply from the vehicle is shortened, but even in that case, the display panel can be stored when necessary. By appropriately opening and closing the case 2 and erecting the display panel storage case 2 only when necessary, it is possible to extend the time during which the vehicle can be driven without supplying power from the vehicle.

  The setting in this case can be performed by operating the switch unit 7 and / or the remote controller 21. When the control unit accepts the operation, the control unit causes the database 19 and other storage units to store and hold which mode (whether or not to display the screen). Alarm by way. If the screen is displayed when the power supply presence / absence information is ON in the user setting, the alarm lamp 13 does not issue an alarm when the power supply presence / absence information is ON, and the power supply presence / absence information is ON. When the screen display is not performed, the alarm lamp 13 is controlled to issue an alarm when the power supply presence / absence information is ON. In other words, the alarm by the screen display and the alarm by the alarm lamp 13 are performed in an inverted state by either one.

  By the way, the display screen displayed on the display panel 3 includes an alarm screen and a standby screen. FIG. 4 shows an example of the display screen. FIG. 4A is an example of a standby state screen displayed on the display panel 3 when alarm information based on GPS position information or alarm information such as predetermined microwave reception is not provided. ) Shows an example of a display screen of alarm contents corresponding to a case where the positional relationship between the vehicle position and the target object has a predetermined condition or when a desired radio wave is received.

  This is the case where the screen display is set when the power supply presence / absence information is OFF, but either the above alarm screen or standby screen may be displayed, or only the alarm screen is displayed without displaying the standby screen. It may be displayed. The latter is preferable because the drive time can be extended without power supply from the vehicle.

  For example, when the control unit 18 detects pressing of the switch unit 7 or the remote controller 21, a screen corresponding to the operation (for example, a menu screen, a setting screen, or the screen of FIG. 4B) is displayed on the display panel. 3 may be displayed.

  The present invention is not limited to the above-described embodiment, and can have various functions. As an example, for example, a function may be provided that issues a warning when the display panel storage case 2 is in an open state when vehicle power is not supplied. Specifically, when the control unit 18 recognizes that the power supply presence / absence information is OFF and the display panel storage case 2 is open from the output of the magnetic sensor, the control unit 18 notifies the fact by voice or screen display. can do. This notification is, for example, when the power is turned on, when the power supply presence / absence information is switched from ON to OFF, or when the display panel storage case 2 is opened from the closed state when the power supply information is OFF. This is done when it is detected that the change has occurred. By doing so, the user can quickly know that the cigar plug cord has been unintentionally disconnected from the DC jack 15 or that the vehicle is not securely powered because the cigar socket is not securely attached. be able to. Further, this notification may be performed only for a certain time (for example, 10 seconds), for example. In this way, it is possible for the user to know that this is the case, and it is possible to suppress unnecessary power consumption without feeling bothered by excessive warning.

  Further, the acquisition operation of the information acquisition unit such as the microwave receiver 10, the wireless receiver 11, and the GPS receiver 12 may be intermittently operated and the interval may be changed according to the open / close state of the display panel storage case 2. Specifically, the interval of the intermittent operation when the display panel storage case 2 is closed is controlled to be longer than the interval of the intermittent operation when the display panel storage case 2 is opened. Thus, power saving can be achieved when the door is closed. On the other hand, when open, the information displayed on the display screen can be updated and displayed with high frequency based on the information acquired by the information acquisition unit. The power saving may be performed by various methods such as limiting the reception band of the wireless receiver 11 to a specific band.

  In the above-described embodiment, the solar panel 4 is also stored in the display panel storage case 2. However, the present invention does not necessarily require the solar panel and the display panel to be arranged on the front and back sides. You may arrange | position in the upper surface of the part 1a, and other arbitrary places. In the case where a solar panel is arranged on the upper surface of the front portion 1a and a configuration including a GPS receiver is adopted, the solar panel is installed at a position that does not interfere with reception of GPS information by the GPS receiver, A receiver (at least a GPS antenna) can be arranged outside the case body and connected by a cable. Furthermore, the GPS receiver and the solar panel are not essential components, and one or both of them may not be provided.

  Further, in the present embodiment, the display panel storage case storing the display panel is opened and closed by rotating it forward and backward within a predetermined angle range. However, the present invention is not limited to this, and the display panel (display screen) ) May be arbitrary. For example, in an in-vehicle electronic device of a rearview mirror type, the present invention can be applied to an apparatus in which a display panel is slid in a lateral direction and stored in a main body of a rearview mirror or protrudes outward from a side surface of the main body.

  Furthermore, it is also possible to provide a cover member that can cover the display screen of the display panel without moving the display panel itself, and to open / close the cover member so that the display screen is exposed / not exposed. . Then, when the lid member is closed and the display screen is brought into a non-exposed state, the functions of the above-described embodiments are appropriately incorporated, such as control so as not to issue an alarm by screen display using the display panel.

It is a figure which shows suitable one Embodiment of this invention. It is a disassembled perspective view of a display part (display panel storage case, display panel, solar panel) part. It is a figure which shows the block diagram of this embodiment. It is a figure which shows an example of the display mode of a display part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case main body 1a Front part 1b Back part 2 Display panel storage case 3 Display panel 4 Solar panel 10 Microwave receiver 11 Wireless receiver 12 GPS receiver 13 Alarm lamp 16 Speaker 17 Display microcomputer 18 Control part 19 Database

Claims (6)

A sound notification unit for performing notification by sound;
A display unit for displaying a notification on the display screen;
A control unit for performing the respective notifications;
The case body,
With
The display unit is movably attached to the case body, and the display screen of the display unit is exposed and visible from the outside, and the display screen of the display unit is not exposed to the outside. It is configured to take a closed state that is not visible from the outside,
The control unit also performs notification by screen display in the open state, and operates so as not to perform notification by screen display in the closed state ,
The power supply cord for connecting to an external power supply has a connector that can be attached and detached, and has a solar battery and a storage battery that stores electric power generated by the solar battery, and does not receive power supply from the external power supply. In addition, when driven by power supply from the solar battery and the storage battery, the control unit controls to stop notification by the screen display,
With an information acquisition unit,
An on-vehicle electronic device characterized in that when the display unit is in a closed state, the interval of the intermittent operation of the information acquisition unit is made larger than that in an open state .   The in-vehicle electronic device according to claim 1, wherein the information acquisition unit is at least one of a microwave receiver, a wireless receiver, and a GPS receiver. Even when the display unit is in a closed state, a sub-display unit that consumes less power than the display unit is provided at a position where it can be seen from the outside
In the case of being driven by power supply from the solar battery and the storage battery without receiving power supply from the external power source, the control unit stops notification by the screen display, and the sub display unit The vehicle-mounted electronic device according to claim 1, wherein the vehicle-mounted electronic device is controlled to perform notification.   In the case of being driven by power supply from the solar battery and the storage battery, whether or not to perform notification by the screen display in the open state can be switched and set by a user setting, and the control unit sets the setting The vehicle-mounted electronic device according to any one of claims 1 to 3, wherein an operation based on the operation is performed. A display microcomputer for controlling the display of the display unit, the display microcomputer outputs predetermined information to the display unit according to an instruction from the control unit;
5. The vehicle-mounted electronic device according to claim 1, wherein when the notification by the screen display is not performed, the display microcomputer is turned off or in a sleep mode.   The vehicle-mounted electronic device according to claim 1, further comprising means for issuing a warning when the display unit is in an open state when no external power is supplied. .

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