System and method for rapidly giving alarm on signal lamp intersection jam by utilizing video event detection

A video event and alarm system technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as system failure and frequent false alarms

Active Publication Date: 2010-05-26
姜廷顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If it is set below 3 minutes, it will cause frequent false alarms and make the system unable to work normally, so it is far from meeting the needs of traffic police for quick response

Method used

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  • System and method for rapidly giving alarm on signal lamp intersection jam by utilizing video event detection
  • System and method for rapidly giving alarm on signal lamp intersection jam by utilizing video event detection
  • System and method for rapidly giving alarm on signal lamp intersection jam by utilizing video event detection

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Embodiment Construction

[0023] It is assumed that the system is installed after a certain signal light controls a stop line in a certain direction of the intersection, and the preset alarm threshold value of the queue clearing period is Ta=10 seconds.

[0024] When the green light of the signal light of the detected lane is changed from off to on, the initialization program of the congestion analysis unit first initializes the alarm detection time window timer tq, the motor vehicle detection area continuous occupation timer tc, and the current congestion alarm state ca to 0, then start to run the traffic jam analysis unit 4 times per second.

[0025] Assuming that the detection area is always occupied by vehicles from the 0th to the 10th second from the start of the release signal: At this time, the traffic jam analysis program has been run 4*10=40 times, then tq is equal to 40, and tc is also 40; When the alarm detection time window timer tq (=40) is equal to 4*the alarm threshold Ta (=4*10=40) in the qu...

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Abstract

The invention relates to a system for rapidly giving an alarm on the jam by utilizing video event detection equipment at signal lamp intersections. The system consists of video image acquisition equipment, video event detection equipment, a signal lamp green signal connecting line of a green light detected lane, a traffic jam analytic unit and the like, wherein the traffic jam analytic unit comprises a signal lamp green signal input interface of a discharging detected traffic direction, a detection area occupation status input interface from the video event detection equipment and a traffic jam alarm signal input interface, and a queuing clearing period alarm threshold value Ta is preset; the occupied status of the detection area is monitored since the green lamp is bright until Ta, and if the detection area is continuously occupied during the time period, a traffic jam alarm signal is sent out.

Description

Technical field [0001] The invention relates to a system and its operation for rapid detection and warning of traffic jams by using video event detection technology at intersections controlled by signal lights in urban road traffic management. Background technique [0002] At present, in cities at home and abroad, at intersections with heavy traffic or frequent traffic accidents, it is necessary to use signal lights to regulate the order of motor vehicles at the intersection. With the development of the economy, the number of motor vehicles has increased sharply, especially in the morning and evening peak hours, many intersections controlled by signal lights have been saturated. When traffic congestion is caused by traffic accidents, vehicle breakdowns, traffic illegal driving behaviors, etc., if it is not handled in time, it will spread quickly to the surrounding area, and even cause local traffic paralysis in severe cases. When there are traffic congestion caused by traffic ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/097G06F19/00
Inventor 姜廷顺李志恒郑通刘刚王一良张滨
Owner 姜廷顺
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