JP2018093458A - Traffic light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a stationary monitoring video camera to a traffic light for vehicles and thereby to promote the risk prevention, traffic safety, and smooth traffic flow on roads.MEANS FOR SOLVING THE PROBLEM: Controllers for controlling a system serving as a base of traffic lights are provided at intersections of roads. Stationary monitoring video cameras are installed at part of the traffic lights, data monitoring approaching vehicles not following signal display is stored in a card, and a present controller is made to have a function to take in the data. The present invention contributes to crackdown of traffic violation and improvement of drivers' recognition to follow signal display, and prevention of traffic accidents due to intersections.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a traffic light using a fixed surveillance video camera linked to a traffic light in order to eliminate a vehicle that does not follow the principle of traffic signal display on a road.

  As shown in Fig. 4, the lamp display of the traffic signal for vehicles changes in principle from blue, yellow, and red to blue, and this round trip time prevents traffic accidents and ensures smooth traffic flow. The failure to do is eliminated.

  The background point of the present invention is mainly about how to cope with the signal display when yellow / yellow blinks, to eliminate the unrecognition of signal display and to provide a method for the driver to follow the signal display It has become.

Japanese Patent Laid-Open No. 11-261990

Ocean Development Co., Ltd. Laser Catalog

Wikipedia free encyclopedia Kakokoda etc.

  This time, the problem is a vehicle that does not follow the yellow / yellow blinking signal in the fixed period type, which is a general traffic signal shown in FIG. In the signal display, blue is advanced, yellow is stopped for the vehicle, and red is stopped. Further, when the yellow blinks, the process proceeds with caution, and when the red blinks, the process stops and proceeds. Yellow / yellow blinking means not proceeding fast, but yellow blinking means proceeding with caution only when the vehicle cannot be stopped safely. From this principle, when you see a vehicle passing through an intersection, signals other than yellow and yellow flashing are relatively protected. For signal display, it is legally obligated to follow the signal, but as a driver's behavioral psychology, there is a vehicle that passes at a speed exceeding normal driving from the behavior that wants to pass through the intersection early. This is a violation behavior that deviates from the meaning of preventing traffic accidents and ensuring smooth traffic flow. Therefore, it is necessary to deal with these actions with strong legal binding force.

Means for Solving the Invention

  The present invention has a controller 3 shown in FIG. 2 in which a traffic signal lamp at an intersection has a function of sensing traffic information, controlling a vehicle / pedestrian signal, and a device for controlling a push button. There is no function to monitor vehicles that do not comply with the signal display obligation when yellow / yellow blinks, which was the subject of the previous period. To solve this problem, from 8 before turning off yellow to 9 after turning off red shown in FIG. A fixed-type surveillance video camera capable of shooting a moving image regardless of day or night using an invisible light irradiated on the basis of a vehicle stop line at an intersection for several seconds (1 to 2 seconds) is provided at a location shown in FIG. If there is no passing vehicle for a few seconds, the camera will not detect and do not shoot.

  The data taken with the video is converted into a card, loaded into the controller, checked at any time, based on the recorded video, and put into practical use as a judgment material for vehicles that violate signal display obligations. A fixed surveillance video camera with a function to record the date and time will be installed.

Effect of the invention

  By implementing the above-mentioned means, the functions of traffic signals have been improved and the performance of fixed video cameras has improved in recent years. There are various cameras such as high-sensitivity, infrared and laser cameras, and the features and installation of these cameras. It can be used in consideration of the conditions, and it can be effective to control traffic violations and to prevent traffic accidents, which are the role of traffic lights, and ensure smooth traffic flow.

  By realizing the above-mentioned means, the driver is made aware of the meaning of the traffic light by making the driver aware of the situation in which the control of violating vehicles is constantly monitored by traffic signals, and the judgment of the approach speed is urged. The effect can be demonstrated.

  Configuration diagram of signal lamp   General intersection block diagram   Fixed surveillance video camera position and irradiation beam direction   Current traffic signal examples and related video camera recording records   Overview of storage in the controller

  The present invention does not monitor all directions of the intersection but records and records a vehicle that does not comply with the signal display obligation between 8 and 9 shown in FIG. 4 as a moving image.

  A battery is used for the power source of a normal surveillance camera, but the power source of a traffic light is used for the proposed fixed-type surveillance video camera.

  The point for monitoring video shooting is a stop line 5 in the direction in which the vehicle shown in FIG. As the light beam to be used, an invisible infrared ray / laser beam is used, and a recording is taken and recorded between 8 and 9 shown in FIG.

  Shooting records can be converted into data, managed and stored by a controller, and reproduced at any time to confirm vehicles that do not comply with signal display obligations.

  As shown in FIG. 1, a fixed surveillance video camera 6 is installed in a part of a traffic light facing the intrusion direction of a vehicle, and only a vehicle that senses an irradiation light for several seconds is operated day and night.

  Here, considering the travel distance per unit second from the vehicle speed entering the intersection, it is 13.9 m at 50 km / h, and 2,8 m is added every time the vehicle speed is increased by 10 km to 16,7 m. Therefore, in the case of the inter-vehicle distance within 8 seconds between 8 and 9 shown in FIG. 4, the vehicle has entered the intersection without following the stop of the red signal, and the tendency becomes remarkable as the approach speed to the intersection increases.

DESCRIPTION OF SYMBOLS 1 Vehicle signal light device 2 Pedestrian signal light device 3 Controller 4 Pedestrian crossing zone 5 Vehicle stop line 6 Fixed type surveillance video camera 7 Irradiation light of fixed type surveillance video camera 8 Before turning off the yellow signal 9 Before the red signal is dropped 10 Repeated display at cycle time 11 Vehicle information sensing control 12 Vehicle / pedestrian lamp control 13 Pushbutton lamp control 14 Video capture card

Claims (2)

  In order to monitor violating vehicles that do not follow the signal, especially when yellow / yellow blinks, a fixed surveillance video camera will be installed in the traffic light section. If this objective can be achieved, it does not depend on the installation position.   Recorded video data is recorded on a card and managed by a controller installed on the ground. It can be checked at any time to respond as a violating vehicle, and can also be linked to a traffic management center. .

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