JPH06251285A - Signal disregarding vehicle detecting device - Google Patents

Abstract

PURPOSE:To specify a signal disregarding vehicle and its driver by detecting the vehicle which travels against a traffic signal and videotaping its license number and driver. CONSTITUTION:This detecting device consists of a signal controller 1 which outputs a red indication signal S1 to an image processor 3, a camera 4 for the whole scene of an intersection, a vehicle photographing camera 5 which photographs a specific vehicle entering the intersection, a speed sensor 11 which detects the speed of the vehicle and detects a vehicle which exceeds a previously set speed, an image processor 3 which performs switching control over a video switching device 6 by receiving the detection signal from the speed sensor 11 during the output of the red indication signal S1 to obtain still pictures of plural frames from the video signal from the vehicle photographing camera 5, and superimposes detection information on the pictures, and a monitor 8; and the camera 5 for vehicle photography photographs the vehicle detected at the time of whole intersection scene photography, videotapes the license plate and driver of the vehicle, and specifies the vehicle and driver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention records a license plate of a vehicle and a driver who have ignored signals at intersections and the like,
The present invention relates to a signal-ignoring vehicle detection device capable of identifying the vehicle and the person.

[0002]

2. Description of the Related Art Intersections are the most dangerous places on the road because people and cars cross each other, and traffic lights have been installed at some intersections in order to avoid this danger. It is maintained and secures traffic safety.

However, even at an intersection where a traffic signal is installed, the driver's signal is overlooked, a forced approach,
Or, the reality is that accidents caused by start-ups and so on do not end, and in order to prevent traffic accidents due to such driving manners, analysis of violation behavior of signal ignoring vehicles and warning to violators are warned. It is essential to give.

Conventionally, when detecting a signal-ignoring vehicle, a plurality of signal-ignoring vehicle monitoring personnel are resident at the intersection.
In addition to making visual judgments, when a signal-ignoring vehicle is found, it has to be tracked by an automobile or the like to issue a warning, which is dangerous.

[0005]

Further, in the conventional detection of a signal-ignoring vehicle by using a human, not only the safety problem but also the determination as to whether the vehicle is a signal-ignoring vehicle is ambiguous due to the individual difference of the detector. Therefore, even if a vehicle ignoring a signal is detected by visual inspection and it is arrested as a traffic violation, it is not possible to make an objective judgment as to whether or not the detection is appropriate, and the There was a case that it developed into a dispute case.

Further, in the case of visually detecting a signal-ignoring vehicle using a human, it is necessary to make a surveillance staff resident near the traffic light installation place, and this method can detect a signal-ignoring vehicle for a long term in reality. It had a problem that it was difficult.

The present invention was devised in view of the above problems, and it objectively detects a vehicle that has ignored a signal at an intersection or the like, records the license plate of the vehicle and the driver, and determines that the vehicle has a signal ignored. An object of the present invention is to provide a signal ignoring vehicle detection device capable of identifying a person, and to record a signal ignoring action that threatens traffic safety by systematizing a signalized intersection.

[0008]

A signal ignoring vehicle detection device according to the present invention includes a signal control device for outputting a red indicating signal to an image processing device while a signal light is in a red signal period, and a full view of an intersection. A panoramic view of the intersection, a vehicle shooting camera that captures a specific vehicle or part of it that has entered the intersection, and the speed of the vehicle moving toward the intersection is detected to exceed the preset speed. In response to the signal ignoring candidate vehicle detecting means for detecting the vehicle, the red signal and the warning signal from the signal ignoring candidate vehicle detecting means, the vehicle is detected from the image of the vehicle photographing camera, and at the same time, the freeze of a plurality of frames is performed. An image processing device that temporarily records a (still) screen and combines detection information such as the shooting time, the elapsed time from the start of red lighting, the speed of the identified vehicle, and the like with the image processing device. Image and a long-term image recording medium for recording the image signal from the intersection panoramic camera by switching the image with a video switching device, and continuously behavior of the vehicle ignoring the signal taken by the intersection panoramic camera near the intersection. The vehicle license plate image and the driver image captured by the vehicle image capturing camera are detected by the vehicle detection function of the image processing device, and the detection information is recorded together with the image captured by the intersection panoramic camera. The gist is that the vehicle and the person can be specified.

[0009]

According to the above configuration, the camera for the panoramic view of the intersection and the camera for photographing the vehicle can be switched to continuously photograph the behavior of the vehicle ignoring the signal, and at the same time, depending on the speed of the vehicle,
By changing the timing of obtaining a plurality of freeze screens, it is possible to reliably capture the license plate and the driver with a limited number of freeze screens. By making effective use of the videotape recording time by intermittent recording, etc., the normal shooting interval is long, and by shortening the shooting interval when a vehicle that is likely to ignore the signal (hereinafter, signal ignored candidate vehicle) enters It is possible to grasp the situation without fail.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a signal-ignoring vehicle detection device according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the signal-ignoring vehicle detection device, and the configuration will be described with reference to the system conceptual diagram of FIG. In this embodiment, the image of the license plate of the signal-ignoring vehicle and the driver is recorded on a VTR (video tape recorder).

Reference numeral 1 is a signal control device for controlling blinking of a signal light 2 provided at an intersection. When the signal light 2 is lit in "red", the signal control device 1 causes the image processing device 3 to operate.
, The red signal S1 is output. This signal light 2
A speed sensor 11 is installed on the upstream side of the vehicle to constantly sense the speed of a passing vehicle, and when there is a vehicle passing over a preset speed, a warning signal is sent to the image processing device 3. Outputs S2.

Reference numeral 4 is a camera for panoramic view of the intersection, which is designed to capture a panoramic view of the intersection. Reference numeral 5 is a camera for camera of a vehicle, which captures a vehicle entering the intersection. Both cameras 4 and 5 are inside the intersection. Is installed at a position where the field of view is, and the intersection full-view camera 4 is
For example, a long-term image recording medium 7 such as a time-lapse VTR
The image can be viewed by the monitor 8 connected to the long-term image recording medium 7. On the other hand, the video signal S4 from the vehicle photographing camera 5 is processed by the image processing device 3, and then the video processing signal S5 is input to the long-term image recording medium 7 via the video switching device 6.

Then, the image switching device 6 receives the switching signal S6 from the image processing device 3 and the camera 4 for the panoramic view of the intersection.
And a structure for switching and controlling an image from the vehicle photographing camera 5.

In the signal ignoring vehicle detection device constructed as described above, the intersection panoramic camera 4 normally records a long-term image in the image processing addition device 9 at an interval of one screen per second in the panoramic image of the intersection in the normal mode. A time-lapse image is taken by the medium 7.

A vehicle (hereinafter referred to as "signal neglecting candidate vehicle") a entering the intersection at a speed higher than a set speed is detected by a speed sensor 11 on the upstream side of the intersection and installed on the downstream side of the intersection. 3 sends a warning signal S2. At this time, if the signal controller 1 is outputting the red indicating signal S1,
The image processing apparatus 3 receiving these signals changes the shooting interval of the long-term image recording medium 7 in the image processing addition apparatus 9 from the normal mode (1 sheet per second) to the alarm mode (4 sheets per second) by the video control signal S3. Switch.

Next, the image of the vehicle photographing camera 5 is image-processed, and when the signal neglecting candidate vehicle a is detected, the speed is calculated from the image and the image of the license plate and the driver is stored in the memory of the image processing device 3. This is transferred to the long-term image recording medium 7 as a freeze (still) screen and recorded on the video tape 10. In this storage, the speed of the signal ignoring candidate vehicle a, the time from the red signal indication to the passage of the speed sensor 11, the position and date and time of the signal ignoring candidate vehicle a at the start of red signal lighting obtained by back calculation are simultaneously calculated. Imprinted.

FIG. 3 is a flow chart showing the operation of the above-mentioned signal ignoring vehicle detection apparatus, which will be described with reference to the monitor images of FIGS. 4 to 11. Normally, the screen of the entire view of the intersection inflow path from the camera 4 for the entire view of the intersection is recorded in the video device by intermittent shooting in the normal mode (one image per second). (Refer to FIG. 4) When the "red signal S1" from the signal control device 1 and the "warning signal S2" from the speed sensor 11 are received, the recording time is switched to the alarm mode, and four frames are recorded every second. An image of the entire view of the intersection inflow path is recorded by intermittent shooting (see FIGS. 5 and 6). When the signal ignoring candidate vehicle a is detected by the image processing (position sensor function), the image of the vehicle photographing camera 5 is stored in the memory of the image processing device 3 to photograph the vehicle number portion, the driver portion and the entire vehicle. The still image is temporarily stored. After the image storage is completed, the image processing signal S5 is selected by the image switching device 6. A still image is recorded on the long-term image storage medium 7 together with the following data (see FIGS. 7 to 11). (A) Shooting time (year / month / day: function of video device side) (b) Elapsed time after the start of red lighting of the signal (c) Speed measured by the speed sensor and, if necessary, (d) Position (e) A long-term image storage medium 7 together with data such as a series of vehicle numbers and the still image.
You can also record to.

According to the above-mentioned structure, (1) Since the intersection panoramic camera 4 and the vehicle photographing camera 5 are switched, the behavior of the signal ignoring candidate vehicle a is continuously photographed, and further the vehicle license plate and the driver photograph. To be done. (2) The number of freeze screens is limited after the signal ignore candidate vehicle a is detected by image processing by changing the timing of obtaining a plurality of freeze screens by the speed obtained from the signal ignore candidate vehicle detection means. I made sure that I could catch the plate and the driver. (3) Intermittent recording is performed in order to effectively use the limited recording time of the video tape 10. The normal shooting interval is long (one frame per second in the embodiment), and when the signal-ignoring candidate vehicle a enters, the alarm mode is entered and the shooting interval is shortened (four frames per second). The purpose of the invention is achieved.

[0019]

The signal ignoring vehicle detection device according to the present invention is
With the above-mentioned configuration, since the long-term image recording medium records for a long time, it is possible to detect the signal-ignoring candidate vehicle without making the detection and monitoring staff resident at the intersection.
Also, by installing an information board or the like on the downstream side of the intersection, it is possible to give a warning to the signal ignoring candidate vehicles. Further, the present invention has a feature that a control plan can be made based on the image data accumulated in the long-term image recording medium, or a violation act or an accident situation can be analyzed. Is extremely large.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a signal-ignoring vehicle detection device according to the present invention.

FIG. 2 is a system conceptual diagram of an intersection where the same device is installed.

FIG. 3 is a flowchart showing the operation of the apparatus.

FIG. 4 through

FIG. 11 is an explanatory diagram of a monitor screen corresponding to the flowchart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 signal control device 2 signal light 3 image processing device 4 intersection full-view camera 5 vehicle shooting camera 6 image switching device 7 long-term image recording medium (time-lapse VTR) 8 monitor 9 image processing additional device 10 video tape 11 speed sensor

[Procedure amendment]

[Submission date] October 12, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a signal-ignoring vehicle detection device according to the present invention.

FIG. 2 is a system conceptual diagram of an intersection where the same device is installed.

FIG. 3 is a flowchart showing the operation of the apparatus.

FIG. 4 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 5 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 6 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 7 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 8 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 9 is an explanation of a monitor screen corresponding to the flowchart.
It is a figure.

FIG. 10 is an explanation of a monitor screen corresponding to the flowchart.
It is a clear view.

FIG. 11 is an explanation of a monitor screen corresponding to the flowchart.
It is a clear view.

[Explanation of Codes] 1 signal control device 2 signal light 3 image processing device 4 camera for panoramic view of intersection 5 vehicle shooting camera 6 image switching device 7 long-term image recording medium (time-lapse VTR) 8 monitor 9 image processing addition device 10 video tape 11 speed sensor

Claims (1)

[Claims] 1. A signal control device for outputting a red signal to an image processing device during a red signal period, a camera for a panoramic view of an intersection so as to capture a panoramic view of the intersection, and a vehicle traveling toward the intersection. Signal ignoring candidate vehicle detecting means for detecting a vehicle speed exceeding a preset speed, and for photographing the vehicle or a part thereof when the signal ignoring candidate vehicle enters an intersection When the vehicle is detected from the image of the vehicle photographing camera by receiving the camera, the red indication signal and the detection signal from the signal ignoring candidate vehicle detecting means, freeze (still) of a plurality of frames from the image of the vehicle photographing camera. An image processing device that temporarily stores the screen and combines detection information such as the shooting time, the elapsed time from the start of the red light period, and the detected vehicle speed in the still screen, and the image processing device. The image signal from the image and the intersection panoramic camera, signals ignored vehicle detection apparatus characterized by being configured of a long-term image recording medium for recording is switched by the image switching apparatus.