JP5082107B2 - Electronic device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traffic monitoring point detector contributing to safe driving by detecting traffic monitoring points existing in the vicinity and notifying appropriate and useful information related thereto. <P>SOLUTION: A traffic monitoring point detector includes: a GPS receiver for detecting the position of own vehicle; a database for storing position information of a traffic monitoring point; and a control unit for extracting the traffic monitoring point for an object of an alarm based on current position information detected by the GPS receiver and position information of the traffic monitoring point stored in the database, and drawing and outputting an alarm of the extracted traffic monitoring point to a main display region R1 of a display unit. When there is a photographed picture of the traffic monitoring point, the control unit draws the alarm of the traffic monitoring point and, when there is no photographed picture, draws a picture associated with the type of the alarm. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a traffic monitoring point detection device and a program for detecting traffic monitoring objects and other traffic monitoring points for monitoring traffic such as surrounding vehicle speed measurement devices based on the current position of the vehicle.

  The position information of the target to be detected by a 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 (for example, Patent Document 1).

  In the case of the target detection device described in Patent Document 1 above, for example, when the current position of the target and the vehicle reaches a set distance (for example, 1 km, 500 m, etc.), “500 m ahead, ○○. "(○○ outputs an alarm by voice such as information (loop coil or the like) for specifying a target, or outputs and displays the information on the display 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, the target detection device that detects a traffic monitoring point such as a vehicle speed measurement device as a target contributes to safe driving. Therefore, such a target object detection apparatus contributes to safe driving. The target object to be detected by the target object detection device can be set as a landmark or other various objects in addition to the traffic monitoring point, but the present invention provides information useful for safe driving. Since it is a device, the target is a traffic monitoring point. Therefore, in this invention, in order to distinguish with the general versatile target detection apparatus, it is called a traffic monitoring point detection apparatus.

Utility model registration No. 3070388

By the way, in the recent traffic monitoring point detection device which is this type of target object detection device, as the information to be displayed on the display, a text display indicating that the current position of the target object and the vehicle has become the set distance as described above. In addition to or in place of what to do, there are those that employ the remaining distance to the target. This is because the distance from the current position of the vehicle to the target is calculated sequentially in order to issue an alarm at the set distance as described above, and the distance to the target, which is the calculation result, is displayed on the display. This can be done by adding a display function. This makes it possible to know that the vehicle is gradually approaching the target and the specific distance to the target, and thus can provide more useful information for safe driving.
However, this type of conventional device exclusively registers the position information of the target object and notifies when the current position of the vehicle approaches the target object. Although the position of an object is displayed, there is still little information provided to the driver to promote safe driving.

  The present invention has been made to solve such a problem. Traffic monitoring that can contribute to safe driving by detecting traffic monitoring points existing in the surroundings and notifying appropriate and useful information related thereto is provided. An object is to provide a point detection device.

In order to achieve the above-described object, the present invention stores (0) the type of monitoring and position information of each traffic monitoring point for a plurality of traffic monitoring points,
Storing a live-action image of each traffic monitoring point with respect to some traffic monitoring points of the plurality of traffic monitoring points;
Store images associated with each type of surveillance,
Based on the current position information of the vehicle and the position information of the traffic monitoring point, the traffic monitoring point to be alarmed is extracted,
If a live-action image for the extracted traffic monitoring point is stored, a real-image image for the traffic monitoring point is drawn, and if no real-image image is stored, it is associated with the type of monitoring of the traffic monitoring point. The image was drawn.
(1) Position detecting means for detecting the position of the own vehicle, a database for storing position information of traffic monitoring points, current position information detected by the position detecting means, and traffic monitoring points stored in the database Extraction means for extracting a traffic monitoring point to be alarmed based on position information, and alarm means for issuing an alarm about the traffic monitoring point extracted by the extraction means, wherein the alarm means is the extraction means If there is a live-action image for the extracted traffic monitoring point, it is drawn, and if there is no real-action image, an image associated with the type of alarm is drawn.
Position detecting means for detecting the position of the own vehicle; database for storing position information of traffic monitoring points; current position information detected by the position detecting means; position information of traffic monitoring points stored in the database; The database includes an extraction means for extracting a traffic monitoring point to be alarmed, and an alarm means for issuing an alarm for the traffic monitoring point extracted by the extraction means. The frequency information indicating the frequency of monitoring at the traffic monitoring point is stored in association with the alarm means, and the warning means controls the way of warning based on the frequency information associated with the traffic monitoring point extracted by the extraction means. I did it.
The control of the warning method may be such that when the frequency information associated with the traffic monitoring point extracted by the extraction means is less than a reference value, the warning means performs a control that does not give a normal warning. .
The control that does not give a regular alarm can be at least one of a case where no alarm is issued and a simple alarm (sound only / display only, etc.).
The reference value may be changed by a user setting.
The information about the traffic monitoring point stored in the database stores information about the time when the traffic monitoring point was updated and registered for each traffic monitoring point, and the warning means uses the reference value for old information based on the information about the time. Even if it exceeds, it is better not to issue a regular alarm.

A traffic monitoring point is a place where various types of traffic monitoring are performed, using a fixed type that always monitors with a device that automatically monitors and a monitoring device that is installed in an emergency and at an appropriate timing. Or a mobile type that is performed by visual inspection by a person. The contents to be monitored include the traveling speed of the vehicle, temporary stop at the intersection, wearing seat belts, drunk driving, whether or not a mobile phone is being used, etc. All of these are performed at places where traffic accidents occur frequently or places where speed is likely and traffic accidents are likely to occur, so by notifying the driver in advance of these places, traffic rules can be used in particularly dangerous places. It is possible to promote safe driving that complies with.
There are places where traffic monitoring points are frequently monitored, and there are places where traffic monitoring points are not often performed once or several times a year. If notifications are uniformly made for traffic monitoring points with different frequencies, notifications are frequently made when the number of registrations increases or when traveling in areas with many traffic monitoring points such as in Tokyo. On the contrary, the notification may become troublesome, or the notification itself may be missed at an important place. Therefore, it is preferable to control the way of warning based on the frequency information. If regular notification is performed only for traffic monitoring points whose frequency information is greater than or equal to the reference value, the amount of information (number of notifications / frequency) will be appropriate, and this will provide important information for safe driving to the user. I can inform you.

  The database may store detailed information about the traffic monitoring point in association with each other, and the warning unit may have a function of notifying detailed information about the traffic monitoring point extracted by the extraction unit. Detailed information includes the monitoring contents (type / method) of the traffic monitoring point, and the monitoring device (vehicle speed measuring device) when the monitoring device used for traffic monitoring at the traffic monitoring point is permanently installed. And an actual photograph (live-action image) obtained by imaging a license plate reading device, a speed limit, and a monitoring type / method. By notifying the detailed information together, it is possible to understand the existence of the traffic monitoring point and the contents thereof, so that it is possible to drive according to the situation and to provide information that promotes safe driving. In addition, as a method for informing such detailed information, for an image such as a photograph, it is a drawing output to the display unit, but for the speed limit or the like, the information is directly used as image information such as text or a mark. It is possible to notify in various manners such as drawing output or voice output.

  (2) The detailed information is actual photographic data obtained by imaging the traffic monitoring point, and the function for notifying the detailed information may draw the photographic data on a display unit. When drawing and outputting actual photo data in this way, the driver can easily understand its presence (monitoring content) or recognize the presence of the device for monitoring at the actual traffic monitoring point. Since driving | operation can be aimed at, it is preferable.

  (3) The detailed information may be a speed limit at an installation position of the traffic monitoring point. By notifying the speed limit (drawing voice / text / images, etc.), the driver can check whether the legal speed has been exceeded. If the speed has been exceeded, the driver should decelerate. Therefore, it is possible to prevent the occurrence of an accident or reduce the possibility.

  (4) On the premise of the invention of (2), the detailed information is a speed limit at the installation position of the traffic monitoring point, and the function for notifying the detailed information is the speed limit of the road sign of the speed limit. It is good to draw on the said display part so that it may overlap with the photograph data of the traffic monitoring point by the aspect. Conventionally, there is one that displays the speed limit of the road. However, the speed limit of the road may differ from the traffic monitoring point (for example, when there is a traffic monitoring point on a different road from the road that is currently running, or when you turn right on the road you are currently driving) For example, if there is a traffic monitoring point ahead.) In such a case, the speed limit required for the traffic monitoring point can be easily and easily drawn by superimposing and drawing the detected traffic monitoring point on the photograph of the traffic monitoring point to be detected in the form of a road sign indicating the speed limit of the traffic monitoring point. It can be grasped intuitively.

  (5) On the premise of the inventions of (3) and (4), a means for detecting the traveling speed of the vehicle is provided, and the warning means may notify the detected traveling speed together with the speed limit. . For example, the traveling speed may be detected by calculating the speed from the history of the current position detected by the position detecting means and the time taken for the movement, or a device for measuring the vehicle speed is provided separately. And various types of devices such as a device that recognizes vehicle speed pulses and in-vehicle LAN transmission information. By notifying the actual traveling speed as well, the driver can recognize the speed limit and traveling speed provided as detailed information at the same time (almost simultaneously and together), and the information is output to the display unit. In this case, it is not necessary to move the line of sight separately from the apparatus to the speedometer of the vehicle, and when provided by voice, the situation around the vehicle such as the front can be continuously observed, which can contribute to safe driving.

  (7) The type of monitoring at the traffic monitoring point may be stored and held, and the alarm unit may perform a notification that calls attention according to the type of monitoring. Depending on the type of monitoring at the traffic monitoring point, the content to be noted differs. In view of this, it is preferable to provide appropriate safety information by informing the user of appropriate attention according to the type. Examples of the notification in accordance with the type of monitoring include a direction in which attention is directed (forward / backward, etc.), and a picture showing an object to be noted (vehicles / devices, etc.).

  (9) As the attribute information of the traffic monitoring point, specific unknown is provided, and the warning means issues a predetermined general caution warning when warning about the traffic monitoring point whose attribute information is unknown. Good. In this way, registration of the attribute “unknown” is allowed, and by providing the appropriate alarm / notification content (speed caution, caution, etc.), it is possible to notify even if detailed information cannot be prepared all at once. Therefore, it is preferable. The attribute information may be provided for each of the detailed information, the frequency information, the type of monitoring, and the time information.

  (10) The information about the traffic monitoring point stored in the database stores information about the time when the traffic monitoring point is updated and registered for each traffic monitoring point. It is better not to issue an alarm. With “hour”, various formats such as date and time information, date, and month can be used. In short, it is only necessary to be able to distinguish whether it is new information or not. For example, it is not limited to information that can be absolutely identified, such as a specific date. For example, it is recorded by the FIFO method, or a registration order record number is assigned. In this way, relatively old / new information may be understood. The traffic monitoring point changes the frequency of monitoring according to the occurrence of a traffic accident or the like, or changes the monitoring location itself. Therefore, if the registered information is old, there is a possibility that it does not match the current situation. Therefore, it is possible to provide appropriate information according to the current situation by preventing the old one from issuing a normal alarm.

Furthermore, it is preferable to store information related to each of the detailed information, the frequency information, and the type of monitoring that is updated and registered for each type of monitoring, and the warning means may change the notification mode based on the information related to that time. In particular, it is preferable to provide a reference for different times for each piece of information, and change the notification mode based on the reference for different times. As an example, for photo data, if the date is within one year from the date of shooting, the speed limit is displayed if it is within three years from the survey date, and the frequency information from the survey date is within two years. If it is within 2 years from the survey date, it will be displayed. By doing in this way, the appropriate alert | report according to each information can be performed in each traffic monitoring point.
Further, the program of the present invention is a program for causing a computer to realize the functions as the extraction means and the warning means in each of the traffic monitoring point detection devices described above.

  In the present invention, when the traffic monitoring point is emergency, the frequency information is stored in association with the traffic monitoring point. Therefore, when a traffic monitoring point existing in the vicinity is detected, an appropriate By notifying useful information, it can contribute to safe driving.

It is a figure which shows suitable one Embodiment of this invention. It is a figure which shows an example of the display mode of a display part.

  FIG. 1 shows a preferred embodiment of the present invention. As shown in FIG. 1, a GPS receiver 1 serving as a position detection unit, a microwave receiver 2, and a wireless receiver 3 are provided as receivers that receive various radio waves and the like. The GPS receiver 1 receives a GPS signal, obtains a current position from the received GPS signal, and sends position information (longitude, latitude) of the obtained current position to the control unit 4.

  The microwave receiver 2 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 wireless receiver 3 receives incoming radio waves in a predetermined frequency band. 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 4 executes predetermined processing based on information input from the various receivers described above, and outputs predetermined alarms and messages using output devices (display unit 6, alarm lamp 7, speaker 8, etc.). Output. 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 the speaker 8 include a buzzer and a voice.

  An alarm based on position information (current position information of the host vehicle) detected by the GPS receiver 1 related to the present invention will be further described. The database 5 stores a detection target (a traffic monitoring point such as a traffic monitoring device) as a table structure in which information such as the type of monitoring, position information (longitude: latitude), and frequency is associated with each other. Further, when alarm display information specific to the traffic monitoring point exists, the alarm display information is stored directly 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 5 can be realized by a nonvolatile memory (for example, EEPROM) in the microcomputer of the control unit 4 or externally attached to the microcomputer. Further, the database 5 also stores road map data.

  The types of monitoring include, for example, vehicle speed monitoring, pause monitoring, drunk driving, seat belt wearing, use of mobile phones while driving and whether or not the traffic rules are observed, for example, vehicle speed In this monitoring, a fixed type in which a vehicle speed measuring device is permanently installed to constantly measure and monitor, and a mobile type in which the policeman irregularly moves to a monitoring position and the policeman operates the vehicle speed measuring device to measure the vehicle. As described above, there are various types of information such as whether or not the monitoring device is permanently installed and whether or not the vehicle speed measurement method such as radar, loop coil, phototube, etc. is distinguished.

  The frequency is information regarding the frequency of monitoring at a traffic monitoring point that is monitored irregularly, particularly in a mobile manner. In other words, traffic monitoring may be performed repeatedly at the same location, or may be performed only once a year. That is, it can be said that the weight of each point is not the same. Therefore, in the present embodiment, for each traffic monitoring point, the frequency is ranked as follows, and is registered in association with the frequency information. For each traffic monitoring point, the date at which the data (frequency information) at that point is updated is also stored. It should be noted that those whose frequency is unknown (including data whose source is not known) are treated as level 3 which is an intermediate level. The higher the level, the higher the reliability of the information. In other words, the higher the level, the higher the possibility that the traffic monitoring point is actually monitoring at present. In addition, when the updated date is stored, it can be said that the more recent the date is, the higher the level of reliability is. In other words, when the updated date is old, there is a high possibility that the current level (frequency) at the traffic monitoring point does not match. In other words, when registered (updated), monitoring was performed relatively frequently, and the level was high, such as 4 or 5, but the number of monitoring (frequency) has now decreased due to subsequent changes in traffic conditions. The actual level will drop or vice versa.

Level 1: Points that have been seen once. I haven't seen it in the last few years.
Level 2: Points that have been seen several times. However, I have not seen it for the past year.
Level 3: Points you see once a year Level 4: Points you see multiple times a year Level 5: Super-famous points that everyone knows

  The alarm display information specific to the traffic monitoring point includes, for example, a photograph of an actual speed measuring device at the traffic monitoring point, a speed limit at the location, and the like. By registering the photograph information in association with each other in this way, it is possible to display a live-action image at the time of an alarm accompanying the approach to the traffic monitoring point.

  In the database 5 and other storage means, alarm methods (alarm information) corresponding to the type of monitoring are registered. This alarm information is different from the above-mentioned alarm display information specific to the traffic monitoring point, and can be used as a general alarm (if the monitoring type is the same, it will be the same alarm information). Although stored separately from the information stored in the database for the monitoring points, each alarm information may be stored in association with each traffic monitoring point in the same manner as the specific alarm display information. And as the monitoring information, for example, in the case where the type of monitoring is a mobile type in which a police officer installs and measures a mobile speed measuring device on the side of the road, the voice information “precautions for parked vehicles ahead”, There is image information and the like that the vehicle (light van) is stopped on the left side of the road. In addition, when the type of monitoring is a mobile type (also called a tracking type) in which a policeman tracks with a vehicle and measures the speed of a vehicle traveling ahead, voice information such as “rear caution”, a police car, etc. There are image information of police cars. In addition, when the monitoring type is a fixed type using a permanent vehicle speed measuring device installed beside the road, audio information such as “attention to the front” and image information such as a picture showing the fixed type vehicle speed measuring device, etc. There is. In addition, when the above-mentioned photographed image is registered, the image information of the picture of this vehicle speed measuring device may be displayed at the same time, or one of them can be selected such as only the photographed image / picture image. It may be displayed. When the type of monitoring is monitoring for ignoring pause, there are audio information “pause caution” and image information such as a picture “pause line etc.”. Note that general alarm information, such as when the contents are unknown, includes voice information such as “speed attention”.

  When the control unit 4 obtains the current position of the host vehicle given from the GPS receiver 1, the control unit 4 accesses the database 5, extracts a target existing around the current position (for example, a radius of 2 km), and extracts the target. Alarm information is determined from the type of target monitoring, and an alarm instruction is output to an output device for outputting the alarm according to the determined alarm information. Further, when there is alarm display information specific to the traffic monitoring point (actual image, speed limit, etc.), it is output at an appropriate timing.

  Further, it is possible to control the manner of alarm based on the level information based on the frequency. In other words, the control unit 4 targets only alarms having a level higher than a preset level as an alarm target, and does not alarm for levels below a set value (reference value), or a simple alarm such as audio only / display only. It is better to suppress regular alarms such as doing so. This set value can be set to level 3, for example, and this value is preferably set to an appropriate value in the initial setting and can be changed by the user setting. In this way, if the alarm is not issued unless the level exceeds a certain level, the alarm will not be continued even if the registered traffic monitoring points increase explosively.

  In addition, an object whose date of update of the data about the target is old may be excluded from a target for a normal alarm such as not alarming (simple alarming). In this way, whether to exclude or not, and the criteria for selecting an old one (a fixed period (set) from today) can be changed by user settings. For data management, it is preferable to provide a function of deleting data with an old update date. In this case, the criterion “old” for selecting data to be deleted may be the same as the criterion for defining “old” for suppressing the above-described regular formation, or may be older. The setting of various conditions by the user can be input by a switch (not shown) connected to the control unit 4 or a touch panel provided on the display unit 6.

  Furthermore, in this embodiment, the control part 4 is provided with the function which calculates | requires driving speed. That is, the travel distance can be obtained from the history of the current position of the vehicle given from the GPS receiver 1, and the travel speed can be calculated based on the time taken to move the travel distance. Of course, a function / device for measuring and acquiring the traveling speed may be provided.

  FIG. 2 shows an example of a display mode displayed on the display unit 6. In the present embodiment, the display unit 6 is realized using, for example, an organic EL display or a liquid crystal display. As shown in the figure, the display unit 6 includes a display area (main display area) R1 for mainly indicating the positional relationship between a traffic monitoring point, which is a target, and the host vehicle. In addition, a map screen is also drawn in the main display area R1. This map screen is generated by reading out map data around the vehicle position from the map database stored in the database 5. Furthermore, in this embodiment, the map screen is drawn in an overhead view state, but it may be drawn in normal 2D (plane).

  In the main display area R1, when there are a plurality of targets in the display area, the plurality of targets can be drawn simultaneously. Both the vehicle and the target are indicated by icons (marks). The own vehicle is indicated by an own vehicle position icon I0 formed in a substantially triangular shape. A target (target) existing within a circle having a predetermined radius (switchable) centered on the vehicle position icon I0 is drawn as a target icon T at the position. In FIG. 2, there is only one traffic monitoring point as a target in the display area R1.

  Furthermore, the target is indicated by a target icon T having a hexagonal shape. Specifically, as shown in FIG. 2 (b), a skeleton-like frame (a kind of wire frame) P0 in which each side of a cube is drawn is arranged inside a regular hexagonal frame P. Then, the frame P blinks (blinks), and the frame P0 is rotated. In this way, by changing (animating) the figure constituting the target icon T, it is possible to easily focus on the presence of the target icon and thus the target.

  Further, the target closest to the vehicle existing in the main display area R1 is set as the focus target. In this embodiment, the decoration icon SI and the type information KI are drawn together around the normal target icon T, which is a display mode of the target icon T for the focus target. The decoration icon SI is an arc centered on the rotation center of the rotating cubic frame P0 and located outside the hexagonal frame P, and the length (center angle) of the arc is the focus target. It is proportional to the remaining distance from the vehicle to the target. In other words, when approaching a certain distance, the decoration icon SI having a predetermined length is drawn and gradually shortened as the host vehicle approaches the target, and when the remaining distance is 0, the arc Control so that the part disappears. By using a kind of indicator in this way, the driver can know the remaining distance to the target object simply by looking at the target icon T of the focus target, and the decoration icon SI is gradually shortened. You can understand that it is approaching the target.

  This fixed distance is preferably changed according to the road type, such as 1000 m for ordinary roads and 2000 m for highways, but may be the same value regardless of the road type. The road type is, for example, whether or not the vehicle speed (position information history and elapsed time can be obtained) is a highway depending on whether or not the vehicle is constantly traveling at a reference speed (for example, 80 km / h) or higher. Since the present embodiment has road map data, it can be obtained by determining whether or not the host vehicle is located on the expressway from the current position and the road map data.

  The type information KI is a text display of the type of the target corresponding to the target icon T of the focus target. Since the type of the target is stored in the database 5 in association with the target, the information is acquired, and the text data corresponding to the type of the target is displayed at the corresponding position (right next to the target icon T of the focus target) indicate. In the figure, since the target is a vehicle speed measurement device having a specific measurement method, “H” indicating the target is displayed. A table in which the type of target (type of monitoring) is associated with text data to be displayed as one of the alarm information is stored in the database 5, so that it is drawn and displayed on the display screen in the main display area R1. The display control unit (which can be realized as one function of the control unit 4) that controls the content to be extracted refers to the above table after extracting the type of monitoring for the traffic monitoring point that is the focus target. Corresponding type information KI can be displayed.

  As a result, not only does the target corresponding to the target icon T have information on which direction the vehicle is located from, but how far away from it, it also tries to drive on or after the current road. It is possible to easily recognize whether or not the target object exists on the route (road) to be performed. In general, vehicle speed measuring devices are often installed in places where the speed is likely to be exceeded or in danger, etc., so that the vehicle itself can travel by knowing its location on the map information. Safe driving can be achieved by determining in advance whether or not the road ahead is such a dangerous place.

  Further, the display control unit aligns the various icons displayed in the main display area R1 and the map screen, and displays them in synchronization. That is, in the present embodiment, the traveling direction of the vehicle is set upward, and the display position of the own vehicle position icon is fixed (the lower central portion of the area where the main display area R1 is displayed), so the map screen is also displayed. Change the display position accordingly. That is, if the traveling direction of the host vehicle has changed (turned), the screen is rotated accordingly, and if the host vehicle moves forward, the displayed map screen is scrolled downward. Such display control can be realized by using map display control in the car navigation system (control for appropriately scrolling the map screen while the position of the host vehicle is fixed at the center of the screen).

  FIG. 2 shows a detailed information window W for notifying a detailed information about the traffic monitoring point from the right end of the screen to the center when the traffic monitoring point as a focus target approaches a certain distance or less in relation to the vehicle position. It shows a state of being drawn by sliding in. Along with this slide-in, in the main display region R1, the position of the vehicle position icon I0 is moved and drawn. In this example, since the detailed information window W slides in from the right to the left, the position of the vehicle position icon I0 is also shifted to the left and drawn. Of course, since the position of the own vehicle position icon I0 is moved at this time, the map screen is also slid accordingly, and the drawing is controlled so that other target icons and the like are also slid in synchronization.

  Thus, by sliding in the detailed information window W from the side, attention can be paid and the driver can be informed that the target is approaching a certain distance or less. In other words, when the traffic monitoring point corresponding to the focus target does not exist or is present at a certain distance or more even if it exists, only the main display area R1 is displayed, and accordingly The display position of the vehicle position icon I0 is also the lower center part of the display screen of the display unit 6 as a whole.

  In the present embodiment, the information displayed on the detailed information window W includes image data GD related to the traffic monitoring point that is the focus target, and a speed limit mark M that displays the speed limit at the traffic monitoring point. Below the detailed information window W, as text, the type of traffic monitoring point monitoring ("H system" in the figure), the remaining distance ("500 m" in the figure), the traveling speed of the host vehicle (in the figure) , “95 km”). The traveling speed is calculated by the control unit 4 based on a signal from the GPS receiver 1.

  The image data GD draws an image associated with the type of alarm when there is a photograph (actual image) of the traffic monitoring point, and when there is no actual image. The speed limit mark M has a circular shape imitating a speed limit sign, and has a red frame around it and a speed limit number drawn in the center of the frame (the speed limit is 100 km / h in the figure). By taking this form, the driver can recognize the speed limit intuitively and instantaneously. In addition, since the layout for drawing the current traveling speed of the vehicle below the speed limit mark M is taken, it is recognized whether the vehicle is traveling in compliance with the speed limit by comparing the upper and lower sides. When it is over, the vehicle can slow down and drive safely while complying with traffic rules.

  In addition, it is determined whether or not the traveling speed of the host vehicle is equal to or less than the speed limit. If the speed is over, the display of the traveling speed of the host vehicle is changed in color (for example, red) or blinked. It is advisable to encourage deceleration.

  Further, the frequency / reliability may be drawn on the image data GD. As a drawing mode, for example, a ★ mark combined with numerical values of level 1 to level 5 is drawn, and the level is also notified from the speaker 8 by voice (for example, notification is made as “level 5”). (You can do either audio or drawing). Further, as another aspect, the volume and the flashiness of the alarm can be changed according to the level.

  Furthermore, in this embodiment, since a live-action image of the traffic monitoring point is drawn, the driver who is the user can intuitively understand the traffic monitoring point ahead and can confirm the passage reliably and easily. Therefore, it is possible to provide useful information for safe driving.

DESCRIPTION OF SYMBOLS 1 GPS receiver 2 Microwave receiver 3 Wireless receiver 4 Control part 5 Database 6 Display part 7 Lamp 8 Speaker

Claims (7)

A plurality of traffic monitoring points, stores the positional information and the type of monitoring of the transportation monitoring point,
Storing a live-action image of each traffic monitoring point with respect to some traffic monitoring points of the plurality of traffic monitoring points;
Store images associated with each type of surveillance,
Based on the current position information of the vehicle, the position information before Ki交 communication monitoring point, extracts a traffic monitoring point alarm object,
When the photographed image about the extracted traffic monitoring points are stored draws the photographed image of the traffic monitoring point, when the photographed image is not stored on the type of monitoring of the traffic monitoring points An electronic device comprising an alarm function for drawing an image associated with the electronic device . 2. The electronic device according to claim 1, wherein when there is a live-action image of the extracted traffic monitoring point, the alarm function also draws an image associated with the type of monitoring of the traffic monitoring point. machine.   In the case where the type of monitoring is measured by installing a mobile speed measuring device beside a road, the image associated with the type of monitoring is an image in which a vehicle is parked on the left side of the road. The electronic device according to claim 1 or 2.   2. The image associated with the type of monitoring is an image of a police vehicle when the type of monitoring is tracking a vehicle and measuring the speed of a vehicle traveling ahead. Or the electronic device of 2.   3. The monitor according to claim 1, wherein when the monitoring type is a permanent vehicle speed measurement device installed beside a road, the image associated with the monitoring type is an image showing a temporary stop line. Electronic equipment.   3. The electronic device according to claim 1, wherein, when the type of monitoring is monitoring for ignoring suspension, the image associated with the type of monitoring is an image showing a vehicle speed measuring device. The program for making a computer implement | achieve the alarm function in the electronic device in any one of Claim 1 to 6 .

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