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Pedestrian crosswalk signal lamp green wave self-adaption control system and method

A technology of self-adaptive control and signal light control, which is applied in the control of traffic signals, image analysis, instruments, etc., can solve problems that are difficult to popularize and apply, and achieve the effects of reducing the amount of calculation, improving utilization, and realizing real-time performance

Inactive Publication Date: 2010-05-05
CHONGQING UNIV
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  • Application Information

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Problems solved by technology

The traffic volume of each intersection and the distance between intersections need to be scientifically measured, so it is difficult to popularize and apply in practice

Method used

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  • Pedestrian crosswalk signal lamp green wave self-adaption control system and method
  • Pedestrian crosswalk signal lamp green wave self-adaption control system and method
  • Pedestrian crosswalk signal lamp green wave self-adaption control system and method

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Embodiment Construction

[0022] The technical solution of the present invention will be described in further detail below according to the accompanying drawings.

[0023] The invention is designed aiming at the pedestrian crossing signal lamp control technology of urban one-way roads.

[0024] Such as figure 1 Shown is a schematic diagram of pedestrian crossing signal light control. There are multiple pedestrian crossings on a long road section. There is a signal light 3 at each pedestrian crossing to control the right of pedestrians to cross the street. The detected area 2 of an image, the boundary of the detected area 2 is a rectangular area ABCD, the length AB (or CD) of the detected area 2 can be set according to the vehicle speed and pedestrian crossing time, and the value is about 80m to 110m.

[0025] The pedestrian crossing signal light adaptive control system of the present invention is as follows: figure 2 As shown, the adaptive control system is composed of a video acquisition module 20...

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Abstract

The invention provides a pedestrian crosswalk signal lamp green wave self-adaption control system and a method thereof; by fully utilizing the phenomenon that the dead time of road vehicles is more than pedestrian walking time when crossing the street, the pedestrian crosswalk signal lamp is controlled by the detection of the vehicle condition at the reserved area in front of the pedestrian crosswalk; the control method of the signal lamp is that: the control parameter of the signal lamp can be automatically adjusted according to the dynamic change of traffic flow, and the control system can be suitable for the change of the traffic flow automatically. When the vehicle condition in a certain distance in front of the pedestrian crosswalk is detected, the technology that a plurality of detected areas are arranged on the road is adopted to replace real physical induction coil; the number, size and position of the detected area can be set, or the relation of actual road distance and image pixel pitch is realized by adopting the camera calibration technology.

Description

technical field [0001] Aiming at the control of multiple pedestrian crossing signal lights in a long road section, the invention proposes to adaptively control the pedestrian crossing signal lamps by detecting the presence of vehicles in a predetermined area before the pedestrian crossing, which belongs to the field of urban road traffic control. Background technique [0002] After searching, in the field of urban road traffic control, there is a Chinese invention patent application with the application number 200610097965.2, and its invention name is "Green Wave Automatic Control Method for Pedestrian Crossing Signal Lights", this invention adopts the green wave control method for pedestrian crossing signal lights , to realize the coordinated control of multiple pedestrian crossing signal lights, so that as many motor vehicles as possible can pass through the traffic arterial line without stopping within the set speed range, but these research results have strict physical re...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/04G06T7/20G06T7/00
Inventor 汪同庆叶俊勇孙方
Owner CHONGQING UNIV
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