JP2005234774A - Traffic signal ignoring vehicle warning device and traffic signal ignoring vehicle warning/recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect and warn a violation vehicle ignoring a traffic signal at a crossing, to suppress a collision accident with a crossing side vehicle, and to certainly control the traffic signal ignoring travel vehicle. <P>SOLUTION: This device automatically detects the violation vehicle ignoring the traffic signal at the crossing, warns the violation vehicle of violation travel, and makes a green signal on the crossing side delay in the case of all red lights to suppress the crossing collision accident. A fact of violation is specified by use of a moving image of a traffic flow in the road crossing within a prescribed time and a static image of the violation vehicle. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention warns a traffic violation to a vehicle that ignores a traffic signal at an intersection where a traffic signal is installed and a single-way pedestrian crossing (hereinafter referred to as an intersection), and also violates the violation. The present invention relates to a traffic signal ignoring vehicle warning device and a warning / recording device for recording a vehicle.

  At the intersections, there are still many accidents involving collisions with vehicles in the intersection lane due to vehicles that ignore traffic signals. From the viewpoint of preventing traffic accidents at such intersections, traffic light-ignoring vehicles have been conventionally controlled.

  Conventionally, police of traffic light-ignoring vehicles are controlled directly by police officers waiting at intersections, or traffic flow images of intersections with surveillance cameras are monitored at the central management center or near the intersection, and recorded images are recorded. Play and go. In these methods, even if a violating vehicle is found on the spot, the detection of the violating vehicle may interfere with traffic of other vehicles or pedestrians at intersections where there is a lot of traffic, or it may be dangerous to track a vehicle that runs away. Therefore, it was difficult to control. Moreover, in the record of the violation vehicle by the conventional surveillance camera, the record from the intersection inflow to the outflow is not taken, and the identification of the license plate and the driver is not sufficient, and the control is difficult. In order to identify a signal-ignoring vehicle, a method for detecting speed, position, license plate, display color of a signal lamp, and the like using an image processing technique has been proposed (Patent Document 1).

  However, it is not possible to prove that the vehicle has passed through the intersection only by the position and speed of the vehicle. Moreover, not only cannot the driver be identified even if the plate number is extracted by performing image processing such as recognition processing on the captured image, but it is not a factual evidence because the image itself is processed. And only taking a picture of a vehicle that has crossed the stop line may be a vehicle that has entered with a yellow signal, and may be a stopped vehicle, so it does not prove that the vehicle has been in violation.

In order to solve the problem in the control of such a signal ignoring vehicle, the present inventors already have an image on which traffic information including the front part of the violating vehicle neglected at the intersection and traffic information is displayed. In addition, a recording apparatus has been proposed that can obtain a traffic flow image of a road intersection within a predetermined time before and after a point in time when a violating vehicle is detected, and can reliably control a signal-ignoring traveling vehicle (Patent Document 2).
Japanese Patent No. 2847682 JP 2003-141679 A

  However, it is important to suppress collision accidents caused by traffic signal ignoring vehicles simultaneously with the control of traffic signal ignoring vehicles.

  Therefore, an object of the present invention is to provide a traffic signal ignoring vehicle warning device that can reduce the occurrence of collision accidents at intersections caused by traffic signal ignoring vehicles.

  It is another object of the present invention to provide a traffic signal ignoring vehicle warning / recording device that can reduce the occurrence of collision accidents at intersections caused by traffic signal ignoring vehicles and can reliably control traffic signal ignoring traveling vehicles.

The traffic signal ignoring vehicle warning device according to claim 1 is a vehicle detection means for detecting a first vehicle that has entered a road intersection (including a single-way pedestrian crossing, the same applies hereinafter) when the signal lamp of the own lane is in a stop signal state;
In response to a vehicle detection signal output by the vehicle detection means, signal lights for all lanes at the road intersection are provided on the first display plate provided at a position in front of the vehicle and visible to the driver of the vehicle. And a warning display output means for displaying an approach warning at the time of a red signal (hereinafter, all red signal).

  The traffic signal ignoring vehicle warning device according to claim 2 is the traffic signal ignoring vehicle warning device according to claim 1, wherein the warning display output means is detected when the vehicle detection signal is a red signal after the end of the all-red signal period. Sometimes, a violation warning is given to the first display panel.

The traffic signal ignoring vehicle warning device according to claim 3 is a vehicle detection means for detecting a first vehicle that has entered a road intersection (including a single-way pedestrian crossing, the same applies hereinafter) when the signal lamp of the own lane is in a stop signal state;
In response to a vehicle detection signal output by the vehicle detection means, the first display panel provided in a position in front of the vehicle and visible to the driver of the vehicle is a red signal after the end of the all-red signal period. And warning display output means for displaying a violation warning.

  The traffic signal ignoring vehicle warning device according to claim 4 is the traffic signal ignoring vehicle warning device according to any one of claims 1 to 3, wherein the red signal from the traffic signal on the crossing lane changes from a red signal to a blue signal when all red signals are generated according to the vehicle detection signal. It has a traffic signal control means for performing delay switching control so as to delay the switching of a predetermined time.

  The traffic signal ignoring vehicle warning device according to claim 5 is the traffic signal ignoring vehicle warning device according to any one of claims 1 to 4, wherein the warning display output means is configured such that the first vehicle is in a red state according to the vehicle detection signal. A collision warning display for warning a collision is performed on a second display board provided at a position where a driver of another vehicle on the intersection lane that intersects the traveling lane can visually recognize.

The traffic signal ignoring vehicle warning device according to claim 6 is a vehicle detection means for detecting the first vehicle that has entered the road intersection when the signal lamp of the own lane is in the stop signal state,
In accordance with the vehicle detection signal output by the vehicle detection means, there is a traffic signal control means for performing a delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the crossing lane by a predetermined time when the signal is all red. It is characterized by.

The traffic signal ignoring vehicle warning / recording device according to claim 7 is a vehicle detection means for detecting a vehicle that has entered a road intersection when the signal lamp of the own lane is in a stop signal state,
In response to a vehicle detection signal output by the vehicle detection means, an entrance warning is displayed on the first display plate provided at a position in front of the vehicle and visible to the driver of the vehicle at the time of all red signals, Warning display output means for displaying a violation warning at the time of red light after the end of all red light period,
Still image acquisition for obtaining a still image on which traffic information including the front portion of the vehicle photographed in accordance with the vehicle detection signal detected at the time of the red signal after the end of the all red signal period and the time of the photographing is superimposed Means,
A moving image acquisition means for acquiring a moving image on which traffic information including the road intersections and their shooting times continuously captured including the time when the still image was obtained;
And an output means for outputting images of the still image acquisition means and the moving image acquisition means.

  The traffic signal ignoring vehicle warning / recording device according to claim 8 is the traffic signal ignoring vehicle warning / recording device according to claim 7, wherein the traffic signal ignoring vehicle warning / recording device is based on the red signal of the traffic signal in the crossing lane when the signal is all red. It is characterized by having traffic signal control means for performing delay switching control so as to delay switching to the green light by a predetermined time.

  The traffic signal ignoring vehicle warning / recording device according to claim 9 is the traffic signal ignoring vehicle warning / recording device according to claims 7 and 8, wherein the warning display output means is configured to output the first vehicle according to the vehicle detection signal. A collision warning display for warning a collision is performed on a second display board provided at a position where a driver of another vehicle on the intersection lane intersecting the lane where the vehicle travels can be visually recognized.

The traffic signal ignoring vehicle warning / recording device according to claim 10 is a vehicle detection means for detecting a vehicle that has entered a road intersection when the signal lamp of the own lane is in a stop signal state,
Traffic signal control means for performing delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the intersection lane at the time of all red signals according to the vehicle detection signal output by the vehicle detection means,
Still image acquisition for obtaining a still image on which traffic information including the front portion of the vehicle photographed in accordance with the vehicle detection signal detected at the time of the red signal after the end of the all red signal period and the time at the time of photographing is superimposed Means,
A moving image acquisition means for acquiring a moving image on which traffic information including the road intersections and their shooting times continuously captured including the time point when the still image is obtained;
And an output means for outputting the images of the still image acquisition means and the moving image acquisition means.

  The traffic signal ignoring vehicle warning / recording device according to claim 11 is the traffic signal ignoring vehicle warning / recording device according to any one of claims 7 to 10, wherein the moving image acquisition means includes a signal lamp along with a road intersection where a signal lamp group is installed. It is characterized in that at least a part of the container group is photographed on the same screen.

  The traffic signal ignoring vehicle warning / recording device according to claim 12 is the traffic signal ignoring vehicle warning / recording device according to any one of claims 7 to 10, wherein the still image acquisition means is a strobe light toward a vehicle photographed during photographing. It is characterized by irradiating.

  According to the traffic signal ignoring vehicle warning device of the present invention, the display panel on the own lane side with respect to the vehicle that has entered the intersection at the time of all red signals (that is, when the signal lights of all lanes at the road intersection are red signals). By displaying an approach warning (caution) such as a “red light”, the driving stop is urged.

  In addition, when a vehicle that has entered into the all-red signal is detected, a collision warning (caution) display such as “there is a crossing vehicle” is displayed on the crossing vehicle (road) to alert the vehicle not to start. Further, when an approaching vehicle in the all red signal is detected, the switching from the red signal to the green signal of the traffic signal on the crossing lane is delayed by a predetermined time, that is, the total red signal period of the signal is extended. As described above, by performing the approach warning display, the collision warning display, or extending the all-red signal period, it is possible to suppress the occurrence of the collision accident at the intersection caused by the signal ignoring vehicle at the intersection.

  In addition, when a violation vehicle enters after the end of the all-red light period, a violation warning such as “ignore signal” or “traffic violation” is displayed for the violation vehicle. As a result, the vehicle that can be stopped depending on the traveling speed is urged to stop, and the vehicle that passes through is triggered to prevent recurrence. In addition, when the vehicle is controlled as a signal ignoring vehicle, there is an effect of making the driver recognize that the vehicle has been violated.

  According to the traffic signal ignoring vehicle warning / recording device of the present invention, in addition to the operation by the traffic signal ignoring vehicle warning device described above, the violation vehicle that automatically ignores the red signal after the completion of the all red signal period at the intersection is automatically detected. Detect and record. When a violating vehicle is detected, the vehicle itself, the driver's face, and the license plate are superimposed by superimposing traffic information (signal display status, etc.) including the current time on the image of the front of the vehicle. In addition, an image on which traffic information including time is superimposed and displayed can be obtained. On the other hand, traffic information including time is superimposed on an image of traffic flow at a road intersection within a predetermined time before and after the time when the violating vehicle is detected. It can be obtained with the image. In addition, these images themselves are not subjected to any processing. Therefore, it is of course excellent in evidence ability but also has high evidence value (evidence power).

  Thus, in the same traffic event, a moving image that records the violation traveling passage situation from the intersection approaching to the outflow of the signal ignoring traveling vehicle, a still image that images the vehicle itself, the license plate, and the driver of the signal ignoring traveling vehicle Thus, it is possible to reliably control a signal-ignoring traveling vehicle. Moreover, when a signal-ignoring traveling vehicle in an intersection is detected, it has a function of simultaneously recording an accident occurrence situation as an image when this violating vehicle causes an accident.

  Further, according to the traffic signal ignoring vehicle warning / recording device of the present invention, the use of the color moving image photographing / recording means can obtain the display state of the signal lamp in addition to the traffic flow image of the road intersection. It is suitable as a recorded image.

  Further, the traffic signal ignoring vehicle warning / recording apparatus of the present invention can capture a clear image regardless of day and night by irradiating with strobe light. In addition, by using near-infrared strobe light as strobe light, it is possible to make the driver notice that the image has been taken without giving the driver an illusion. As a result, it is possible to expect effective suppression and prevention of recurrence against a signal violator.

  In addition, according to the traffic signal ignoring vehicle warning / recording device of the present invention, a vehicle that has entered the intersection beyond the stop line is detected as a violation vehicle at the time of a red signal after the end of the all red signal period. Only violation vehicles that deliberately (including serious negligence) cross the stop line can be detected more reliably. In order to determine whether or not the vehicle has intentionally entered the intersection at the time of a red signal, it is usually necessary to determine from the position of the vehicle and the position of the stop line and the traveling speed of the vehicle at the time of the yellow signal. When such processing is performed, the equipment configuration is increased in size and the processing complexity increases. For this reason, in the present invention, when the signal color of the traffic light on the own lane is a red signal after the end of the all red signal period (when the crossing side is a green signal), a vehicle that has entered the intersection beyond the stop line is displayed. By considering this as a vehicle that has deliberately entered and detecting this as a violation vehicle, it is possible to reliably detect only the violation vehicle with a simple process.

  Examples according to the present invention will be described below.

  FIG. 1 is a block diagram showing a traffic signal ignoring vehicle warning device and a traffic signal ignoring vehicle warning / recording device according to a first embodiment of the present invention. FIG. 2 is a diagram showing a system configuration in which the traffic signal ignoring vehicle warning device and warning / recording device of the present invention are arranged at an intersection to be monitored. FIGS. 3 and 4 are diagrams illustrating an example of the situation of an intersection when a signal ignoring vehicle enters.

  1 and 2, a signal lamp 10 is attached to a signal pole 5 at an intersection 3 where a main road 1 and a secondary road 2 intersect.

  The signal lamp 10 or the signal column 5 is provided with a moving image camera 11, a laser rangefinder 12 as a vehicle sensor, a still image camera 13, a traffic light 15, and a box in which a detection / recording unit 20 is housed. ing.

  The moving image camera 11 is attached to the upper part of the signal lamp 10 so that the road including the intersection 3 and the signal lamp in front of the violating vehicle provided at the intersection can be photographed. Take a picture. This moving image camera 11 has a wide-angle so that it can shoot including all the signal lamps 10 provided at the intersection 3 in order to cope with the violation vehicle entering the intersection 3 from each direction. A TV camera or the like is used. In addition, the color camera is good so that the display color of the signal lamp can be captured, and the camera is highly sensitive so that it can be taken in the daytime and at night. Therefore, a high-sensitivity wide-angle color television camera whose sensitivity is adjusted according to the ambient brightness is suitable. With this moving image camera, as shown in FIG. 4, for example, the moving image screen records the vehicle 6 traveling in an intersection beyond the stop line 4 as time passes, and also displays the display color of the signal lamp 10. It is included. Note that although only one moving image camera 11 is basically required, two or more moving image cameras 11 may be provided corresponding to the structure of the intersection 3 or the like.

  The laser distance meter 12 is provided for each traveling lane, and detects a vehicle that has entered the intersection 3 beyond the stop line 4 of the monitored lane. For this purpose, the laser beam LB is irradiated to a predetermined position to be detected. Since the measured distance changes when the laser beam LB is blocked by the entering vehicle, the approach of the vehicle is detected by the change in the distance.

  The still image camera 13 is usually provided for each lane as in the case of the laser distance meter 12. When the laser distance meter 12 detects the entry of the vehicle, if the vehicle is a violation vehicle 6, the detection is performed. A photograph is taken of the same measurement position as the detection position of the laser distance meter 12 in accordance with the signal. Thereby, the front part of the violating vehicle 6 that has entered is photographed, and a still image is obtained in which the vehicle itself, the license plate, and the driver's face are shown. Alternatively, a still image camera capable of simultaneously photographing a plurality of lanes may be used to detect and photograph an approaching vehicle in any of the lanes.

  In order to obtain this still image as a clear image, it is preferable to use a still image camera 13 with a strobe device and irradiate with strobe light. Further, instead of the still image camera 13 with a strobe device, a still image camera 13 and a strobe device separate from the still image camera 13 may be provided. Thereby, a clear still image can be obtained also in the daytime and at night. Further, the strobe device and the still image camera itself are adapted for near-infrared light, and a near-infrared strobe light is irradiated at the time of shooting to obtain a clear still image, and the driver of the violating vehicle 6 is dazzled by irradiation. You can notice that the photo was taken without giving As a result, it is possible to expect effective suppression and prevention of recurrence against a signal violator.

  The signal lamp 10 is provided for each traveling direction of each lane as shown in FIG. The display colors “green, yellow, red” of the signal lamp 10 are controlled by the traffic light 15.

  The display board 16 is located at a position that is easy for the driver of the vehicle to see, for example, the upper part of the signal lamp 10 or the vicinity thereof, depending on the traveling state of the vehicle, characters for entering warning, collision warning, violation warning, for example, red signal, A crossing vehicle is present and the signal is ignored. Moreover, even if it is a symbol other than a character, it should just be what can warn.

  The configuration of the detection / recording unit 20 is shown in FIG. A plurality of laser distance meters 12, still image cameras 13, signal lamps 10, and display boards 16 are provided corresponding to the traveling lane, and the internal configuration of the detection / recording unit 20 is also a plurality of distance meters 12, display boards. 16 or the like. However, in the following description, a configuration for one or two traveling lanes necessary for understanding the invention will be described.

  First, the moving image monitoring recording unit 21 is continuously supplied with images (for example, 30 frames per second) of the traffic flow at the intersection 3 from the moving image camera 11, and the current time and current image are included in the images. The display state (representing the display state of the traffic light at the intersection) is simply superimposed and synthesized continuously without editing the image. This moving image record is stored as digital data in an electronic file device such as a disk.

  The recorded moving image may be stored for a long time as a monitoring record, or may be overwritten and recorded every predetermined period (for example, one day). The moving image monitoring / recording unit 21 together with the moving image camera 11 constitutes a moving image shooting / recording unit. Then, in accordance with the violating vehicle detection signal, a moving image of a predetermined period including the time of the detection signal and a predetermined period thereafter is output.

  The vehicle detection unit 22 detects a vehicle that has entered the intersection 3 beyond the stop line 4 in cooperation with the laser distance meter 12 and notifies the determination unit 24 of the detected vehicle.

  The signal state detection unit 23 is supplied with a signal lamp output ST corresponding to the current state of the signal lamp 10 as a signal state from the outside, and supplies the traffic signal of the monitored lane to the determination unit 24. At the intersection 3, traffic flows in different directions (main road direction and secondary road direction) are given traffic rights (present) by displaying a green light in order by the traffic light. The display state of the traffic light given to this series of traffic flows is the current display state.

  The determination unit 24 violates the traffic signal ignorance based on the detection notification from the vehicle detection unit 22 and the signal state from the signal state detection unit 23, for example, the red signal at the time of the all red signal or after the end of the all red signal period. It is determined that the vehicle 6 has entered the intersection, and a vehicle detection signal is supplied to the moving image monitoring recording unit 21, the still image recording unit 26, the signal control output unit 29, and the warning display output unit 30.

  The clock unit / display unit 25 includes a clock, and obtains the display state from the signal state detection unit 23 via the determination unit 24 or directly, and stores the display state in the moving image monitoring recording unit 21 and the still image recording unit 26. Supply time and display status. The time and the present state are always supplied to the moving image monitoring recording unit 21, but may be supplied to the still image recording unit 26 only when a still image is recorded.

  The still image recording unit 26 receives the vehicle detection signal from the determination unit 24, issues a shooting instruction to the still image camera 13, and simply superimposes the time and the current state on the captured still image, and the still image itself Records and outputs without any editing or processing. The image in the still image recording unit 26 is recorded as digital data in the same manner as the moving image. The still image recording unit 26, together with the still image camera 13, constitutes a still image shooting / recording unit.

  The signal control output unit 29 sends a control signal for controlling the signal lamp 10 to the traffic light 15 according to a predetermined order, time, and the like. In the present invention, a vehicle detection signal is given to the signal control output unit 29 when the traveling vehicle enters the intersection during the all-red signal period or a predetermined period of the all-red signal period. The signal control output unit 29 receives the vehicle detection signal and controls the traffic light 15 so as to extend the all red signal state of the signal lamp device 10 by a predetermined time. That is, the red signal state of the intersection lane that intersects the lane of the offending vehicle that has entered the intersection is maintained for a predetermined time.

  The warning display output unit 30 displays an approach warning (for example, a red signal) on the display board 16 when the all-red signal is displayed for a violation vehicle that has entered the intersection, and displays a red signal after the all-red signal period ends. Violation warning display (for example, signal ignorance, traffic violation) is performed on the board 16. In addition, the warning display output unit 30 displays a collision warning (for example, there is an intersecting vehicle) at the time of a full red signal for a vehicle in an intersection lane that intersects the traveling lane of a violation vehicle that has entered the intersection. It is also possible to display a collision warning for a vehicle in an intersection lane at the time of a red signal after the end of the all red signal period (the intersection lane is a green signal). However, from the viewpoint of safety, it is preferable to display a warning only in the vicinity of the signal lamp device 10 only in the case of a red signal.

  The violation vehicle passage recording unit / history recording unit 27 adds a required history to the moving image of the predetermined period from the moving image monitoring recording unit 21 and the still image from the still image recording unit 26, and a series of traffic events. As one file and output to the transmission unit 28. Here, the history to be added includes “intersection point name”, “record number”, “occurrence date”, “occurrence time”, “presentation cycle start time”, “representation time”, and the like. . These histories may be added for each image or may be added on behalf of a file.

  The transmission unit 28 transmits the file composed of the moving image and the still image from the violating vehicle passage recording unit / history recording unit 27 to a central device such as a management center or a waiting place near the intersection so that the file can be recorded, reproduced, or monitored. .

  Next, prior to describing the operation of the present invention, the arrangement of signal lamps and the signal display timing will be described with reference to FIGS.

  As shown in FIG. 5, the signal lamps at the standard crossroad intersection are vehicle lamps 1V and pedestrian lamps 1P that display the indication in the direction of the main road 1, and vehicle lights that display the indication in the direction of the secondary road. A device 2V and a pedestrian lamp 2P are arranged.

  The display timing of the signal is shown in the present floor plan of FIG. FIG. 6 shows a general example of 2 display 10 floors (steps), and the display of one of the signal lamps is switched for each floor. Floors 1 to 5 are first indications that give the right of passage in the main road direction, and floors 6 to 10 are second indications that give the right of passage in the subway direction. For example, the violation vehicle monitoring period for the main road 1 is the level 5 to the level 10 in which the level 2 of the first display is combined with the level 2 of the first display. The time of each floor is set as illustrated in FIG. 6, and one display cycle is formed by the floor 1 to the floor 10.

  Now, the operation of the traffic signal ignoring vehicle recording apparatus of the present invention will be described with reference to the flowchart of FIG. 7 and the warning operation and recording operation timing chart of FIG. In the following description of the operation, a warning operation and a recording operation when the vehicle travels on the main road 1 will be described as an example.

  When starting, the signal state in the direction of the main road 1 is detected in step 101. When all the signal lamps 10 at the intersections become the red signal of the presenting platform 5 which is a red signal following the blue signals of the presenting steps 1 to 3 and the yellow signal of the presenting step 4, this all red signal It is determined that This all-red signal is set at such a time that a right-turn vehicle or the like staying in the intersection 3 can get out of the intersection before reaching the next displayed floor. This all-red signal period is a period from when the main road is red in FIG. 8A to when the secondary road is blue in FIG. 8B.

  Next, when it is determined that the signal is all red, an offset time Toff is set in the offset timer in step 103. As shown in FIG. 8D, the offset time Toff is a time set to reliably detect a vehicle that has entered the intersection after passing the stop line 4 after becoming a full red signal. It is determined in advance according to the scale and shape of the intersection or the position of the stop line. Since the predetermined period of all red signals is about 2 to 3 seconds (2 seconds in FIG. 6), the offset time Toff is desirably about 1 second at the maximum.

  In step 104, it is determined whether or not the offset time Toff has ended. When the offset time ends, as shown in FIG. 8B, the vehicle is monitored from that point in time between the red light on the main road, that is, the period from the middle of the current level 5 to the current level 10 in FIG. It becomes a period. Violation vehicle detection is performed in steps 107 and 110 during this approach vehicle monitoring period, that is, from the start of the approach vehicle detection operation in step 105 until the red signal in step 119 ends. The detection of the violating vehicle 6 includes the notification of detection of the approaching vehicle from the laser rangefinder 12 and the vehicle detection unit 22, and the signal state of the signal lamp output ST from the signal state detection unit 23 (middle to the present stage 5 The determination unit 24 performs the determination based on the floor 10).

  In step 106, it is determined whether or not the all red light period has ended. If the all-red signal period has not ended, the process proceeds to step 107, and vehicle detection is repeated. When an approaching vehicle is detected during the all-red signal period, a vehicle detection signal is generated as indicated by entry i in FIG. Based on the vehicle detection signal from approach i, an approach vehicle warning display output is generated at step 108 as shown in FIG. 8 (e), and at step 109, a red signal is generated from the red signal of the traffic signal on the crossing lane as shown in FIG. 8 (e). An all-red extension request signal for delaying the switch to is generated for a predetermined time.

  When an approaching vehicle warning display output is generated, an approach warning message such as a “red signal” is displayed on the display plate 16 on the own lane side (the approaching vehicle side) in order to urge the stop of traveling. Similarly, a collision warning message such as “there is a crossing vehicle” is displayed on the display board 16 for the crossing side vehicle by the approaching vehicle warning display output.

When the all red extension request signal is generated in step 109, the all red extension signal is output to the traffic light 15 only once. The maximum extension time when extending all red lights is preferably about 1 second in consideration of traffic flow. The state in which the total red signal period is extended is shown as “red extension” in FIG.
The extension of the all-red signal period is performed only when an approaching vehicle is detected during the all-red signal period.

  If it is determined in step 106 that the all red light period has expired, a vehicle that subsequently entered the intersection is detected in step 110.

  The vehicle detected in step 110 is indicated by entry ii in FIG. 8C, and is a vehicle that has entered the intersection with a red light after the end of the all red light period. At this point, the intersection lane is green. It is determined that the vehicle in approach ii is a violation vehicle, and in step 116, a violation warning message such as “ignore signal” is displayed on the display board 16 for the violation vehicle as shown in FIG.

  Further, when the violating vehicle 6 is detected in Step 110, Step 111 for performing recording number / time / presentation registration, Step 112 for performing still image recording / output, and Step for starting moving image output / output timer Proceed to 113 at the same time, and each process is performed in parallel.

  First, in step 111, the recording number for the detected violating vehicle, the time at which it occurred, and the current display state at that time are registered. Then, in step 119, it is confirmed that the red signal has not ended, and the process returns to the vehicle detection in step 110 again to prepare for detection of a new violation vehicle.

  On the other hand, in parallel with step 112, a still image of the offending vehicle is recorded and output. For this purpose, the front part of the violating vehicle 6 that has entered the same measurement position as the approaching vehicle detection position of the laser rangefinder 12 by stroboscopic light is photographed, and the vehicle of the violating vehicle 6 itself, the license plate, the driver's face Get a still image with. This still image is recorded by superimposing the recording number acquired in step 111, the time at that time, and the current display state, and output.

  Further, in parallel, in response to the detection of the violating vehicle in step 113, the output of the moving image recording recorded in the moving image monitoring recording unit is started continuously and the output timer is started. As shown in FIG. 8 (h), the output time range of the moving image recording is “−N seconds to + M seconds” before and after the time point when the violation vehicle is detected, that is, the time point when the still image is recorded. For example, N seconds is a time period for recording the behavior of a violating vehicle from before the stop line position until the vehicle is detected, and M seconds is a time period for recording from the time when the vehicle is detected until the vehicle travels through an intersection. In this moving image, the time at which the image was taken and the present state are recorded in a superimposed manner. In step 114, the end of the moving image output time is monitored, and in step 115, a moving image within the output time range from the start to the end of the timer time is output.

  Next, in step 117, these still images and moving images in a certain time range are added to a required history (“intersection spot name”, “record number”, “occurrence date”, “occurrence time”, “present cycle”). Start time ”,“ time of each display ”, etc.) are added, and a violation event passing record is formed as one traffic event in one file in step 118. As addition, the image may be superimposed and combined with each image or a representative image (for example, a still image), or a title image may be formed and combined with the image. A file in which an image of the formed traffic signal ignoring vehicle is recorded can be recorded, reproduced, or monitored from the transmission unit 28 to a central device such as a management center or a waiting place near an intersection by wired or wireless transmission means. To transmit.

  In a central device such as a management center or a waiting place near an intersection, the image of the recorded traffic signal ignoring vehicle recorded file is displayed on a monitor or printed out, and the storage device such as a magneto-optical disk is reliable and permanent. Stored as digital data. Then, the data file is reproduced as necessary and displayed on a monitor and output to a printer, and the violating vehicle, its vehicle license plate and the driver are determined, and the control is performed.

  The detection / recording device 20 is also provided with monitor display means, and the detection / recording device 20 itself monitors by outputting the file formed by the violating vehicle passage recording unit / history recording unit 27 to the monitor display means. It can also be configured to.

  Further, in step 119, it is determined whether or not the red signal has ended. If the red signal is still red, the process returns to the vehicle detection step 110 to repeat the processes after the vehicle detection. After the red light ends, the flow ends.

  The violation vehicle warning and the still image recording / moving image recording may be performed on the approaching vehicle during the all-red signal period as shown by broken lines in FIGS. In this case, it is desirable to carry out with respect to the approaching vehicle after the offset time Toff has elapsed since the all-red signal state.

  The operation flow for one lane of the main road has been described above, but the same operation is performed for other lanes of the main road and other lanes of the subway.

  In the first embodiment, the still image recording unit including the still image camera 13 and the still image recording unit 26 has been described. However, the present invention is not limited to this. For example, it can also be realized by a still image capturing / recording unit using a moving image camera and having the still image recording unit 26 have a function of continuously capturing the image as in the moving image monitoring recording unit 21.

  In this case, the moving image camera continuously captures the same measurement position as the vehicle detection position of the laser rangefinder 12, and the still image recording unit having the moving image monitoring recording function captures the image captured from the moving image camera. (For example, 30 frames per second) are continuously supplied, and the time at that time is continuously superimposed and recorded on the image without editing the image. This moving image record is stored as digital data in an electronic file device such as a disk. When the vehicle detection signal from the determination unit 24 is received, the frame image at the time of detection of the violating vehicle is extracted from the moving image recording as a photographed image and recorded / outputted.

  As another second embodiment, it is possible to superimpose traffic information such as time and current state on a still image and a moving image together with a history record. In the first embodiment described above, the time and display state is supplied from the clock / display unit 25 to the still image recording unit 26 and the moving image monitoring recording unit 21 and superimposed on each image.

  In the second embodiment, the time / present state is supplied from the clock / presentation unit 25 to the violating vehicle passage recording unit / history recording unit 27. Then, in the violating vehicle passage recording unit / history recording unit 27, traffic such as the time and the current state is displayed for the moving image of the predetermined period from the moving image monitoring recording unit 21 and the still image from the still image recording unit 26. The information is added together with the required history and output to the transmission unit 28 as one file.

  In the second embodiment, the process of superimposing data (history, time, etc.) on each image only needs to be performed once, so that the process becomes easy.

  As another third embodiment, a Doppler radar is used as a distance meter for detecting a violation vehicle. In the first embodiment, since the laser distance meter 12 is used, the apparatus can be configured at low cost, but the beam spot is narrowed down so that the sight is aimed at the center of the lane.

  By using the Doppler radar as a distance meter as in the third embodiment, the radar beam width can be set in accordance with the lane width. As a result, for example, even a vehicle with a small vehicle width such as a single vehicle is less likely to miss the violation travel. It is also possible to monitor multiple lanes simultaneously with a single Doppler radar by setting the radar beam width to multiple lane widths. In this case, a still image corresponding to the detected lane width is used. Since the shooting area of the camera 13 is also widened, the necessary number of distance meters 12 and still image cameras 13 can be reduced.

  Furthermore, by using Doppler radar as a distance meter, it is possible to simultaneously acquire the speed and direction data in addition to the position of the vehicle. Therefore, these data can be superimposed on the still image data together with the time and the present state. Can do. In addition, it is possible to record only the vehicle traveling in the intersection 3. Therefore, the data for traffic violation control can be enhanced.

  As the vehicle detection means, in addition to the laser distance meter of the first embodiment and the Doppler radar of the second embodiment, other detection means, for example, an ultrasonic vehicle detector often used as a vehicle detector, A loop-type vehicle sensor, an image-type vehicle sensor, or the like can also be used.

  In parallel with the installation of the traffic signal ignoring vehicle recording device of the present invention at the intersection 3, the traffic signal ignoring vehicle recording device is installed at a predetermined distance in front of the intersection, and the recording operation is performed. By installing a warning display board informing of what is being done, it is possible to suppress signal-ignoring travel and reduce the occurrence of accidents.

  Further, the traffic signal ignoring vehicle warning device according to claims 1 to 6 of the present invention can be combined with the traffic signal ignoring vehicle warning device to constitute a traffic signal ignoring vehicle warning / recording device, respectively. In these cases as well, the same effect as in the traffic signal ignoring vehicle warning / recording device according to the seventh and subsequent aspects can be obtained. In this case, a traffic signal ignoring vehicle recording apparatus having the following configuration is used.

  The traffic signal ignoring vehicle recording device includes a moving image shooting and recording means for continuously shooting a road intersection where a signal lamp group is installed by superimposing traffic information including at least the time at that time, and a signal lamp of the own lane Vehicle detection means for detecting a vehicle that has entered the road intersection when the stop signal is present, and the vehicle detection means detects the front portion of the vehicle according to the vehicle detection signal detected by the vehicle detection means at the time of a red signal after the end of the all-red signal period. A still image capturing / recording unit that captures a photograph by superimposing traffic information including at least the current time, a still image captured by the still image capturing / recording unit, and a predetermined time including a time when the still image is captured Output means for outputting the moving image as a series of violation vehicle passage records.

  The traffic signal ignoring vehicle recording device detects a moving image photographing recording means for continuously photographing a road intersection where a signal lamp group is installed, and a vehicle that has entered the road intersection when a signal lamp in its own lane is in a stop signal state. Vehicle detection means, still image shooting and recording means for taking a picture of the front surface of the vehicle according to a vehicle detection signal detected by the vehicle detection means at the time of a red signal after the end of the all red signal period, and the moving image shooting and recording A traffic information recording unit that superimposes and combines traffic information including at least the time at which each image was captured on the moving image captured by the unit and the still image captured by the still image capturing and recording unit, and the traffic information recording unit Each of the traffic information is superimposed and synthesized, and the moving image within a predetermined time including the time when the still image was taken is output as a series of violation vehicle passing records. And an output means for the.

  The traffic signal ignoring vehicle recording device includes a moving image shooting and recording means for continuously shooting a road intersection where a signal lamp group is installed by superimposing traffic information including at least the time at that time, and a signal lamp of the own lane The vehicle detection means for detecting the vehicle that has entered the road intersection in the stop signal state, and the same position as the vehicle detection position of the vehicle detection means are continuously photographed, and after the all-red signal period ends by the vehicle detection means Still image capturing / recording means for superimposing traffic information including at least the current time on a captured image at that time in accordance with a vehicle detection signal detected at the time of a red signal, and outputting the still image as a still image, and the still image capturing / recording means And an output means for outputting the moving image within a predetermined time including the time when the still image was captured as a series of violation vehicle passing records.

  The traffic signal ignoring vehicle recording device detects a moving image photographing recording means for continuously photographing a road intersection where a signal lamp group is installed, and a vehicle that has entered the road intersection when a signal lamp in its own lane is in a stop signal state. The vehicle detection means and the vehicle detection position of the vehicle detection means are continuously photographed, and according to the vehicle detection signal detected by the vehicle detection means at the time of the red signal after the end of the all red signal period, Still image shooting / recording means for outputting the shot image as a still image, and a time when each of the moving image shot by the moving image shooting / recording means and the still image shot by the still image shooting / recording means is shot at least. A traffic information recording unit that superimposes and combines traffic information including the traffic information, and a still image and the still image in which the traffic information is superimposed and synthesized by the traffic information recording unit. The moving image in a predetermined time including the time was, and an output means for outputting a series of violations vehicle pass recording, the.

  Further, the output means transmits the still image and the moving image within a predetermined time including the time when the still image was captured, to which the traffic information is superimposed and synthesized, to the management center via the transmission means. As a result, the still image and the moving image are transmitted to the management center as a recorded image of one traffic event and recorded, so that the violator can be controlled by calling it later as evidence.

  The output means transmits at least one of a still image and a moving image within a predetermined time including a time when the still image is captured, to which the traffic information is superimposed and synthesized, to a monitoring device near the intersection. Transmit via means. As a result, the still image and / or moving image is transmitted and recorded as a recorded image of one traffic event to the monitoring device in the vicinity of the intersection. it can.

Block diagram of a traffic signal ignoring vehicle warning / recording apparatus according to the first embodiment System configuration diagram with traffic signal ignoring vehicle warning / recording device at the intersection The figure which shows the example of the situation of the intersection when vehicles approach at the time of all red lights The figure which shows the example of the situation of the intersection when vehicles approach at the time of the red signal after the end of all red The figure which shows the example of arrangement of the signal lamp at the standard crossroad intersection Current state diagram showing signal display timing Operation Flowchart of Traffic Signal Ignoring Vehicle Warning / Recording Device According to First Embodiment Timing chart of warning operation and recording operation in flowchart of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main road 2 Secondary road 3 Intersection 4 Stop line 5 Signal pole 6 Violation vehicle 10 Signal lamp 11 Camera for moving images 12 Vehicle sensor (laser distance meter)
13 Camera for Still Image 15 Traffic Light 16 Display Board 20 Detection / Recording Unit 21 Moving Image Monitoring / Recording Unit 22 Vehicle Detection Unit 23 Signal State Detection Unit 24 Determination Unit 25 Clock Unit / Display Unit 26 Still Image Recording Unit 27 Violation Vehicle Passing Recording Unit / history recording unit 28 transmission unit 29 signal control output unit 30 warning display output unit MA moving image shooting range SA still image shooting range LB laser beam

Claims (12)

Vehicle detection means for detecting a first vehicle that has entered a road intersection (including a single-way pedestrian crossing, hereinafter the same) when the traffic light of its own lane is in a stop signal state;
In response to a vehicle detection signal output by the vehicle detection means, signal lights for all lanes at the road intersection are provided on the first display plate provided at a position in front of the vehicle and visible to the driver of the vehicle. A traffic signal ignoring vehicle warning device, comprising: warning display output means for displaying an approach warning when a red signal (hereinafter, all red signal) is displayed.   The traffic signal according to claim 1, wherein the warning display output means issues a violation warning to the first display board when the vehicle detection signal is detected at the time of a red signal after the end of the all-red signal period. Ignore vehicle warning device. Vehicle detection means for detecting a first vehicle that has entered a road intersection when the traffic light of its own lane is in a stop signal state;
In response to a vehicle detection signal output by the vehicle detection means, the first display panel provided in a position in front of the vehicle and visible to the driver of the vehicle is a red signal after the end of the all-red signal period. A traffic signal ignoring vehicle warning device, comprising: warning display output means for displaying a violation warning.   The traffic signal control means for performing delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the crossing lane at a time of all red signals according to the vehicle detection signal, Item 4. The traffic signal ignoring vehicle warning device according to items 1 to 3.   The warning display output means is provided at a position where a driver of another vehicle can visually recognize an intersection lane that intersects the lane in which the first vehicle travels when the all red signal is generated according to the vehicle detection signal. 5. The traffic signal ignoring vehicle warning device according to claim 1, wherein a collision warning is displayed on the display board for warning of a collision. Vehicle detection means for detecting a first vehicle that has entered a road intersection when the traffic light of its own lane is in a stop signal state;
In accordance with the vehicle detection signal output by the vehicle detection means, there is a traffic signal control means for performing a delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the crossing lane by a predetermined time when the signal is all red. A traffic signal ignoring vehicle warning device. Vehicle detection means for detecting a vehicle that has entered a road intersection when the traffic light of its own lane is in a stop signal state;
In response to a vehicle detection signal output by the vehicle detection means, an entry warning is displayed on the first display plate provided at a position in front of the vehicle and visible to the driver of the vehicle at the time of all red signals, Warning display output means for displaying a violation warning at the time of red light after the end of all red light period,
Still image acquisition for obtaining a still image on which traffic information including the front portion of the vehicle photographed in accordance with the vehicle detection signal detected at the time of the red signal after the end of the all red signal period and the time at the time of photographing is superimposed Means,
A moving image acquisition means for acquiring a moving image on which traffic information including the road intersections and their shooting times continuously captured including the time point when the still image is obtained;
A traffic signal ignoring vehicle warning / recording apparatus comprising: the still image acquisition unit and an output unit that outputs an image of the moving image acquisition unit.   The traffic signal control means for performing delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the crossing lane at a time of all red signals according to the vehicle detection signal, Item 8. A traffic signal ignoring vehicle warning / recording device according to item 7.   According to the vehicle detection signal, the warning display output means is provided on a second display board provided at a position where a driver of another vehicle can visually recognize an intersection lane that intersects the lane in which the first vehicle travels. 9. The traffic signal ignoring vehicle warning / recording device according to claim 7, wherein a collision warning display for warning of a collision is performed. Vehicle detection means for detecting a vehicle that has entered a road intersection when the traffic light of its own lane is in a stop signal state;
Traffic signal control means for performing delay switching control so as to delay the switching from the red signal to the green signal of the traffic signal on the intersection lane at the time of all red signals according to the vehicle detection signal output by the vehicle detection means,
Still image acquisition for obtaining a still image on which traffic information including the front portion of the vehicle photographed in accordance with the vehicle detection signal detected at the time of the red signal after the end of the all red signal period and the time at the time of photographing is superimposed Means,
A moving image acquisition means for acquiring a moving image on which traffic information including the road intersections and their shooting times continuously captured including the time point when the still image is obtained;
A traffic signal ignoring vehicle warning / recording apparatus comprising: the still image acquisition unit and an output unit that outputs an image of the moving image acquisition unit.   11. The traffic signal ignoring vehicle warning according to claim 7, wherein the moving image acquisition means captures at least a part of the signal lamp group on the same screen together with a road intersection where the signal lamp group is installed. Recording device.   11. The traffic signal ignoring vehicle warning / recording device according to claim 7, wherein the still image acquisition means irradiates a strobe light toward a vehicle photographed at the time of photographing.

Images