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Simple method for detecting road junction jam state by ground sensing coil and traffic signal light control system employing the same

A traffic signal light and congestion state technology, applied in the field of traffic management, can solve the problems of large data volume, investment amount, construction volume and maintenance cost, etc., and achieve the effect of improving efficiency, reducing purchase cost and construction cost, and reducing cost.

Inactive Publication Date: 2009-07-01
AOCHENGTONGLI S&T DEV BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large number of ground induction coils required to be installed and the analysis of the driving status of the vehicle, the amount of data to be processed is relatively large, so the investment, construction and maintenance costs are relatively large

Method used

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  • Simple method for detecting road junction jam state by ground sensing coil and traffic signal light control system employing the same
  • Simple method for detecting road junction jam state by ground sensing coil and traffic signal light control system employing the same

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Embodiment Construction

[0010] see figure 1 , the present invention provides a simple method for detecting congestion at intersections by using ground sensing coils, which embeds a plurality of ground sensing coils in the intersection and / or on the road near the edge of the intersection, and the ground sensing coils are based on whether there is a vehicle above it Send different status signals. The buried position of the ground induction coil is a position where normal driving vehicles do not pass. When the time standard of congestion is determined, it is concluded that there is congestion at the intersection.

[0011] The place where the ground sense coil is buried can be selected in the center of the crossing 1, the middle 2 of the straight lane boundary line in the crossing, the middle 3 of the lane boundary line near the crossing, and the place where other vehicles do not pass when they are running normally. The vehicle does not pass through these locations. When there are vehicles in multiple l...

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Abstract

The invention relates to a simple method for adopting induction coils to detect the intersection jam states and a traffic signal light control system which adopts the method. The method comprises: embedding a plurality of induction coils in an intersection and / or on roads near the intersection edge, sending different state signals by the induction coils according to whether vehicles exit on the induction coils or not, wherein the embedded positions of the induction coils are positions that normal running vehicles do not pass, and forming a conclusion that the intersection is jammed when the number of the induction coils which are sent and have vehicles above reaches or exceeds the number standard of cognizing jamming and the duration time reaches or exceeds the time standard of cognizing jamming. The system comprises a central control unit and a plurality of induction coils, wherein output signal lines of the induction coils are connected with a central processing unit through an interface circuit, the central control unit judges the intersection jamming states according to the method, and the traffic lights can be controlled to prevent vehicles from driving into the intersection when in jamming, thereby guarantying the smoothness of the intersection.

Description

technical field [0001] The invention relates to a simple method for detecting congestion at an intersection by using a ground sensing coil, and also relates to a traffic signal lamp control system using the method, which is mainly used for controlling traffic signal lamps and belongs to the technical field of traffic management. technical background [0002] Whether the control of traffic lights or traffic lights is reasonable is an important factor affecting the traffic capacity of road intersections. The existing traffic light control system is set in the traffic light control cabinet located on the side of the traffic light road, and the traffic lights are controlled by the central control unit. Conversion, the control system is equipped with a mode setting device and a manual switch device, through the mode setting device input control parameters such as traffic light conversion sequence and conversion time, through the manual switch device to realize the direct control o...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/042G08G1/07G08B13/08H05K7/20
Inventor 梁治龙
Owner AOCHENGTONGLI S&T DEV BEIJING
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