JP5651898B2 - Electronic device and program - Google Patents

Description

  The present invention relates to a target detection apparatus that detects a surrounding target based on a current position of a vehicle or detects the presence of a target by receiving a desired radio wave.

  2. Description of the Related Art A target detection device that detects and notifies a microwave transmitted from a vehicle speed measurement device is known. 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 position information of the target to be detected by the vehicle speed measuring device or the like is stored and held, and an alarm is issued when the current position of the vehicle detected by GPS and the position of the target are in a predetermined relationship. There is a target detection device that emits light (for example, Patent Document 1).

  In the case of the target detection apparatus described in Patent Document 1 above, for example, when the detection target and the current position of the vehicle reach a set distance (for example, 1 km, 500 m, etc.), “500 m ahead, XX. (XX indicates that an alarm by voice such as information (loop coil or the like) for specifying a target is output, or the information on the display is output and displayed as text.

  These target detection devices, for example, inform the driver of the approach to the vehicle speed measurement device, thereby contributing to preventing the driver from unintentionally overspeeding. In particular, since the vehicle speed measuring device is generally installed in a place where the speed is likely to be exceeded, it is possible to alert the driver to the overspeed in a dangerous place. . Thus, this type of target detection device provides the necessary information for safe driving.

Utility model registration No. 3070388

  By the way, the conventional target detection device of this type uses a display as a notification means when a target is detected. However, the amount of information to be displayed, the types of display objects to be increased, and the contents to be displayed are various. As a result, the screen of the display is also getting larger. When the target is notified, the target detection device is installed at a position where the driver enters the field of view or at a position where the driver can easily enter, so that the driver can easily confirm the contents.

  On the other hand, this type of target detection device is not always operated at all times. For example, when traveling in an area where the target location is well known, the target detection device may not be operated. is there. Then, when the target detection device is installed at a position where it can easily enter the driver's field of view, it may be disturbed.

  Furthermore, target detection devices include a type installed on the dashboard and a type attached to a room mirror. For example, in the case of a type attached to a room mirror, a liquid crystal panel is arranged on a part of the mirror part. Since the display portion is provided, the area of the portion that can be used as a mirror is reduced, and the visibility of the rear view is reduced accordingly.

  Of course, in either case, there is no problem in securing the field of view for safe driving, but there is a problem that it is desired to improve the field of view and visibility in the front or behind the room mirror.

  In order to solve the above-described problems, the present invention includes (1) a detection unit that detects a target existing around the host vehicle, and a display unit that notifies the target detected by the detection unit. In the target detection apparatus, the display unit is configured by a transparent display, and the rear side of the display screen is transmitted through the transparent portion of the display unit so that the display unit is visible. Note that “targets” include, for example, those related to speed measurement devices displayed by radar detectors, and those related to POIs such as facilities, landmarks, and intersections displayed by navigation devices that perform route guidance, etc. Includes what is subject to notification. “Detection” includes not only detecting the target itself directly with a sensor or the like, but also storing or acquiring the position information of the target, and the relationship between the position information of the target and the vehicle position information. Including those that indirectly detect the presence of the target.

  The transparent display is such that a transparent electrode or the like is arranged on a transparent glass plate such as a transparent liquid crystal (LCD) and a transparent EL, and the rear can be visually recognized from the front display screen side. The transparent may be colored as well as colorless and transparent, and is not limited to being completely transparent, but also includes a translucent material whose transmittance is not 100%. Even when a predetermined alarm or the like is drawn on the display means (transparent display), if a part of the display unit includes a transparent area, the rear state can be visually recognized from the transparent area. When nothing is installed on the back side (rear side) of the display means, the rear side can see what is in the space behind it, and when it is installed on the mirror , You can see what is reflected in the mirror, making it easier to check the surroundings. Furthermore, when the display means is OFF, the rear side can be visually recognized on the entire display screen, which is preferable because the field of view can be secured better.

  (2) A vehicle is provided with a main body mounted on a standard room mirror, the detection means is mounted in the main body, a mirror portion is provided on the front surface of the main body, and the display means is located outside the side surface of the main body. It is good to arrange so that it may protrude. If it does in this way, even if it makes a display means protrude outside the main body provided with the mirror part, the back (front of vehicles) side can be seen from a transparent part.

  (3) A vehicle is provided with a main body to be mounted on a standard room mirror, the detection means is mounted in the main body, a mirror portion is provided on the front surface of the main body, and the display means overlaps the mirror portion. May be arranged. In this way, in the transparent part of the display screen of the display means, the mirror part located on the rear side can be seen, so that the rear of the vehicle can be confirmed by looking at the image reflected on the mirror part. it can.

  (4) The main body incorporating the detection means and the display means can be formed as separate units. In this way, the main body can be placed at a position where it is easy to see the display means close to the driver, for example, on the dashboard at a position where it is easy to receive radio waves and the like that are not even on the windshield. In particular, since the display means is transparent, the degree of freedom of the installation position is increased.

  (5) The display means has a part that is continuously transparent to the space and a part that is held by an opaque holding means, and the display means always displays on the part that is held by the opaque holding means. While displaying the element to be performed, the notification of the target may be performed as a display on a part that is continuously transparent to the space rather than the element that is always displayed. The front cannot be visually recognized from the part held by the opaque holding means, but by displaying the element that is always displayed on the part, the element that is always displayed does not melt into the background that can be seen through the transparent panel. The user can surely recognize the display content. On the other hand, other contents that are not always displayed are displayed on a transparent part, and when not displayed, the front state can be visually confirmed through the part that becomes the party name. Examples of the element that is always displayed include a clock and a calendar.

  (6) A plurality of the display means may be provided in different places in the driver's field of view, and display may be performed to notify the target on the display means in a direction corresponding to the direction of the target. The location of the target can be easily recognized. Note that such a function may not be provided.

  (7) The transparent display uses a display that is visible from both the front surface and the back surface, and the notification of the target is a display state that is normally visible when viewed from the front surface and a display from the back surface. It is preferable to provide a switching means for switching between a display state and a display state that can be normally visually recognized.

  In the present invention, the display means is constituted by a transparent display, and the rear side can be seen through the transparent part. For example, when the operation means is stopped and almost the entire display means is transparent, The rear side of the display means can be visually recognized, and the visibility is improved. Even if something is displayed on the display means, if a transparent portion remains, the rear side can be seen through the transparent portion, so that a certain degree of field of view can be secured. Therefore, even if the screen size of the display means is increased, it is possible to suppress annoying feeling.

It is a figure showing a suitable 1st embodiment of the present invention. It is a figure which shows suitable 2nd Embodiment of this invention. It is a figure which shows suitable 3rd Embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. The first embodiment is a target detection device of a type that is mounted on a standard room mirror of a vehicle. That is, as shown in FIGS. 1 (a) and 1 (b), a rearview mirror 1 attached to a car as a standard has, for example, a joint portion at the tip of an arm 4 attached to a pedestal 3 attached to a windshield 2. A structure in which the mirror unit 6 is connected via 5 is adopted. The joint portion 5 is configured such that the mirror portion 6 is movable within a predetermined angle range with respect to the arm 4 and can hold its posture at a desired position. In addition, although the thing of illustration shows the type with which the windshield was mounted | worn, a mounting position is not restricted to this.

  As shown in FIG. 1B, the target object detection apparatus 10 according to this embodiment is attached to a standard room mirror 1 having such a configuration. This target object detection device 10 is provided with a mirror portion 12 for visually recognizing rearward over almost the entire surface of a main body 11 formed of a flat rectangular housing.

  In addition, fixing clamps 14 are provided on the upper and lower sides of the center of the back surface of the main body 11, and the target detection device 10 is fixed with the fixing clamps 14 being sandwiched from above and below the standard room mirror 1. To do.

  As shown in FIG. 1C, in this embodiment, a display unit 13 is provided on one side edge of the mirror unit 12 so as to protrude outward. The display unit 13 is formed using a transparent liquid crystal panel (transparent EL display).

  In the main body 11, devices for detecting and informing a target existing around the vehicle are mounted. Specifically, a receiver that receives various types of radio waves, etc., a control unit that performs processing such as determining the presence or absence of the target based on the radio waves received by the receiver, and an output of a speaker that outputs an alarm, etc. And a power supply circuit and the like are mounted.

  As a receiver, a GPS receiver serving as position detecting means, a microwave receiver, and a wireless receiver are provided. The GPS receiver receives the GPS signal, obtains the current position from the received GPS signal, and sends position information (longitude, latitude) of the obtained current position to the control unit.

  The microwave receiver receives microwaves in a predetermined frequency band, and detects the signal level of the received microwaves when receiving microwaves in the set frequency band. Specifically, the RSSI voltage corresponding to the signal level and the electric field strength is used. The predetermined frequency band is, for example, a frequency band including a microwave frequency emitted from the vehicle speed measuring device. The radio receiver receives radio waves in a predetermined frequency band that come in. For example, the predetermined frequency may be a radio frequency band used when the emergency vehicle notifies the base station of the vehicle position.

  The control unit executes predetermined processing based on information input from the various receivers described above, and outputs a predetermined alarm / message using an output device (display unit 13, alarm lamp, speaker, etc.). The predetermined process for determining the alarm content based on the information input from the receiver can use the same basic process as in the conventional technique. That is, when a signal having a certain condition is received / acquired, a corresponding alarm is output. Note that alarms using a speaker include a buzzer and voice.

  According to the present embodiment, when the target detection apparatus 10 is operated, if a target is detected, a mark object indicating the target is drawn at a predetermined position on the display unit 13 or The user (driver or the like) is notified by displaying the contents / information of the target in a predetermined position on the display unit 13 with characters or the like. On the other hand, when the target object detection device 10 is not used, the output to the display unit 13 is lost by turning off the power. Then, since the display unit 13 is a transparent liquid crystal, the display unit 13 is transparent, and the user views the back side of the display unit 13, that is, the scenery on the front side of the vehicle through the display unit 13. be able to. Therefore, the field of view expands. Even when the target object detection device 10 is operated, the same effect can be exhibited by turning off the display / output of the display unit 13. As an example, when waiting for a target that does not exist in the surroundings, various standby screens are usually displayed on the display unit, but as one aspect of the standby screen, a state in which nothing is displayed and the screen is made transparent It is good to provide. In this way, when the target is not present in the surroundings, the display unit 13 is transparent, so that the forward visibility is good, and when the target is detected, it is appropriately notified. Therefore, it is preferable.

  Further, the size of the display unit 13 tends to increase, but even if the size is increased, there is no problem because it becomes transparent when not used, and it is safe when displaying information. There are few problems because of the presentation of useful information for driving. Furthermore, even when information is displayed, it is preferable that a transparent portion remains in a part of the display unit 13 because the front side of the vehicle on the back side of the display unit 13 can be seen from the transparent portion.

  In this embodiment, as shown in FIG.1 (c), although the display part 13 was provided so that it might protrude on the outer side of the one side of the mirror part 12, the installation position is arbitrary and the lower side or the opposite side side It is good also as an edge etc., and the number of the installation is not restricted to one place, and may be plural. Further, as shown in FIG. 1 (d), the display unit 13 may be disposed so as to overlap the mirror unit 12. In this way, when the display unit 13 is transparent, the portion of the mirror unit 12 located on the back side of the display unit 13 also functions as a mirror, so that the visibility when confirming the rear is improved.

  FIG. 2 shows a second embodiment. In this embodiment, it is a type installed on a dashboard. The target object detection device 20 of the present embodiment employs a configuration in which a display unit 22 is attached to the upper surface of a flat rectangular main body 21. The main body 21 is placed directly on the dashboard. At this time, in order to fix stably, it is preferable to place a gel-like adhesive sheet on the bottom surface side of the main body 21 because it is easily fixed and the dashboard remains clean after separation. You may fix using an adhesive tape, a hook-and-loop fastener, etc. Of course, you may install through a predetermined bracket.

  In the flat main body 21, devices and the like constituting the detection means and the control unit are mounted. A user interface such as a solar panel 24 and a speaker 26 is arranged on the upper surface of the main body 21. A relatively large area can be taken as an installation area of the solar panel 24.

  The display unit 22 is configured using a transparent liquid crystal. The drive circuit for the transparent liquid crystal is incorporated in the main body 21, and the display unit 22 is erected as shown in FIG. 2C. As in the first embodiment, the display unit 22 is In the transparent state, the back side can be seen through. Therefore, when the display unit 22 is installed so as to face a user such as a driver, when the display unit 22 is turned on and information related to the target is drawn, the information can be confirmed. When is turned OFF and transparent, the front can be confirmed even in the display portion 22, and the visibility is improved.

  FIG. 3 shows a third embodiment of the present invention. In the present embodiment, the main unit 31 and the display unit 34 are configured as separate units, and both the units 31 and 34 are connected by a connection cable 33.

  The main unit 31 has a solar panel 32 that is a solar cell mounted on the upper surface of a flat rectangular case. In the case of the main unit 31, various devices that constitute detection means for detecting a target existing around the host vehicle are mounted. Furthermore, the main unit 31 is provided with a database for performing an alarm based on position information (current position information of the host vehicle) detected by the GPS receiver.

  In this database, a target structure (a traffic monitoring point such as a traffic monitoring device) to be detected is stored as a table structure in which the type of monitoring, position information (longitude: latitude), and information such as frequency are associated with each other. Further, when alarm display information specific to the traffic monitoring point exists, the alarm display information is directly stored or information (file name or the like) for specifying the information is also stored. Information regarding these targets is registered for certain targets at the time of shipment. This data can be updated by various known methods. The database can be realized by a non-volatile memory (for example, EEPROM) in the microcomputer of the control unit or externally attached to the microcomputer. Furthermore, road map data is also stored in the database. Note that the configuration of each device or the like that constitutes the detection means described above is an example, and a part of the configuration may not be provided, or conversely, another device may be added and configured.

  Furthermore, the main unit 31 includes a rechargeable battery and a charge / discharge circuit, and the power generated by the solar panel 32 can be charged into the rechargeable battery. Further, when the solar panel 32 cannot generate power at night or the like, it operates by discharging from the rechargeable battery.

  Since the main unit 31 can take a simple box shape, the solar panel 32 can be easily enlarged. In addition, the main unit 31 does not need to be confirmed by the driver during normal use, so the front end of the dashboard (front side of the vehicle / near the windshield), the top of the windshield, and the sun visor Therefore, it is inconspicuous during driving because it is in a position away from the driver's seat or the like or out of the field of view during driving, and also in the shape of a flat box. Therefore, even if the size and shape of the main unit 31 are increased, the main unit 31 can be installed without a sense of incongruity. Accordingly, the main unit 31 can be further enlarged. In any case, since the size of the solar panel 32 can be increased as compared with the conventional solar type target detection device, the power generation amount is increased accordingly.

  Furthermore, in this embodiment, a DC jack 37 is provided on the side surface of the case of the main unit 31. The DC jack 37 is for connecting a cigar plug cord 38, and is connected to a cigar socket of the vehicle via the cigar plug cord 38 so that power can be supplied. A cigar plug cord 38 is detachably attached to the DC jack 37. Thereby, in addition to the case where the amount of power generated by the solar panel 32 and the power supply from the rechargeable battery is insufficient, the power can be supplied from the vehicle as necessary, and a stable operation can be performed. Even when receiving power supply from the vehicle in this way, there is no problem because it is temporary until charging of the rechargeable battery is completed.

  The display unit 34 includes a display unit 35 made of transparent liquid crystal or transparent EL, and a case 36 in which the drive circuit is built. The display unit 35 protrudes and is connected to the upper outside of the case 36. A circuit for driving the display unit 35 is incorporated.

  Further, since the display unit 34 is formed as a separate unit independent of the main unit 31 and is in a thin and standing state, there is no sense of incongruity even if the size of the display unit 34 (display unit 35: liquid crystal panel) is large. . In addition, since the entire scene can be visually recognized through the display unit 35 in the transparent state, the presence of the display unit 34 does not get in the way.

  The connection cable 33 includes both a power line and a signal line. A control signal from the control unit to the display unit 35 is transmitted via the signal line. The display unit 35 and other circuits and devices in the display unit 34 (case 36) are driven by using power transmitted from the main unit 31 via the power line of the connection cable 33.

  Further, as described above, the main unit 31 is installed on the front end side of the dashboard (the back side when viewed from the driver), and the display unit 34 is disposed on the front surface of the dashboard (when viewed from the driver). Since the unit is installed at some other preferred location, the units are installed at some distance from each other, and therefore the length of the connection cable 33 is sufficiently long in consideration of it. Is set. In addition, it is preferable to use a relatively thin connection cable 33 such as a flat cable because it does not stand out even if wired on the dashboard.

  Furthermore, the installation position of the display unit 34 is not limited to the dashboard, and can be installed at various positions. In particular, in this embodiment, since the display unit 35 is transparent and can be seen to the back side thereof, for example, it can be attached in front of a speedometer or other instrument panel, an A pillar, or any other position in the vehicle. it can.

A plurality of display units 34 may be provided, and a plurality of display units 34 may be connected to the main unit 31 and controlled. For example, two display units 34 are provided, the first display unit 34 is installed on the right A pillar, and the second display unit 34 is installed on the left A pillar. Then, the control unit displays on the first display unit 34 when the position of the target is on the right side of the current position, and displays the second on the display when the position of the target is on the left side of the current position. Display is performed on the display unit 34. Since the display unit uses a transparent liquid crystal, it can be installed without hindering the field of view even if a large number of display units are installed.
Furthermore, the transparent liquid crystal constituting the display unit can output a three-dimensional image by superimposing a plurality of sheets and drawing an image appropriately shifted on each surface.

  In addition, the display unit 13, the display unit 22, and the display unit 34 are made of a transparent member (for example, a glass plate) so that the display surfaces of a plurality of transparent display panels such as a transparent liquid crystal and a transparent EL are parallel to each other at a predetermined interval. It is good also as what stuck together. In addition, when a plurality of transparent display panels are stacked, it is preferable to stack the transparent display panels that emit different colors. In addition, when a plurality of transparent display panels are stacked, the respective transparent display panels may be arranged so that the display directions of the respective display surfaces are parallel to each other, but the display directions of the respective display surfaces have a predetermined angle. Also good. The transparent display panel may be a dot matrix type or a segment display type set in advance.

  In addition, a display that is visible from both the front and back sides of the transparent display panel is used, and the control unit is normally visible when viewed from the back side and the display state that is normally visible when viewed from the front side with respect to the display unit. It is preferable that the display state can be switched and displayed. For example, when a switch or a remote control is provided and a switching instruction signal for front side display / back side display is input from the control unit, the control unit displays a left-right reversed drawing of the position of the target object or characters to be displayed on the display unit. Do it. It should be noted that, instead of performing left-right reversal drawing, it is also possible to display a pattern that is normally visible when viewed from either the front surface (the front side of the display screen) or the back surface (the rear side of the display screen).

  As shown in the display unit 13 in FIG. 1C, the display unit 22 in FIG. 2, and the display unit 34 in FIG. 3, one end of the display unit (the main body 11, the main body 21, and the case 36 side) is hereinafter referred to as the device side. (The side where the device such as the controller of the normal display unit is provided)), and the main body 11, the main body 21 and the case 36 use opaque members, and the other end of the display unit (referred to as the space side). May not be provided with a holding member or may be supported by a transparent holding member. In this case, it is preferable to display an element that is always displayed (for example, digital display of time and speed) on the device side (holding end side) of the display unit. That is, when the display unit is held by an opaque member, an element that is always displayed may be displayed on the opaque holding member side. On the other hand, the warning display for detecting the target is not always performed, but should be performed only at the time of detection. In particular, the display on the space side, more specifically on the space side than the element that is always displayed on the transparent open end side. It is good to do as

DESCRIPTION OF SYMBOLS 10 Target object detection apparatus 11,21 Main body 13,22,35 Display part

Claims (4)

A system comprising a display unit and a solar panel, wherein the display is performed on the display unit based on the power generated by the solar panel,
The display unit is configured by using a transparent display, and the rear side of the display screen is transmitted through the transparent part and becomes visible.
The display unit including the display unit and the main unit including the solar panel are configured as separate units, and both units are connected by a connection cable.
Said body unit, and can be installed on the dashboard,
The display unit can be mounted in front of a vehicle speedometer ,
The display device performs display for notifying a target existing around a current position .   The target has a traffic monitoring point
  The apparatus of claim 1.   The main unit includes a receiver in a frequency band including a microwave frequency emitted from the vehicle speed measurement device, and uses the display unit to give a predetermined alarm based on information input from the receiver. To do
  The apparatus according to claim 1 or 2, characterized in that The said solar panel was equipped with the upper surface of the flat box-shaped case, The apparatus in any one of Claim 1 to 3 characterized by the above-mentioned.

Images