Electronic police having functions of accurate traffic jam alarm and jaywalking photograph and operation method
A traffic congestion and electronic police technology, applied in traffic flow detection and other directions, can solve the problems of limited quantity and coverage, waste, and no traffic congestion rapid detection and alarm function.
Inactive Publication Date: 2010-06-30
姜廷顺
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Problems solved by technology
At present, this confirmation work can usually only be done through TV surveillance cameras, the number and coverage are limited, and a large number of electronic police officers who run red lights and automatically take pictures on urban roads, although they have huge resources of image acquisition equipment, due to lack of traffic Congestion rapid detection and alarm function is wasted
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[0029] Assume that a vehicle detector is set 20 meters behind the stop line of a certain flow direction at a certain signal light control intersection, and the alarm threshold Ta=15 seconds during the queuing clearing period and the alarm threshold Tb=9 seconds during the green light driving period are preset.
[0030] When the green signal input interface of the signal light detects that the green light of the signal light changes from off to on, the alarm detection time window timer tq of the traffic congestion analysis program, the continuous occupancy timer tc of the vehicle detector, and the current congestion alarm state ca are initialized to 0, Then start running the traffic jam analysis program, 4 times per second.
[0031] Assuming that the 9th second of the green light running through the red light detector is not occupied (tr=0), and from the 10th second to the 18th second, the running through the red light vehicle detector is continuously occupied during these 9 sec...
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The invention provides an electronic police having the functions of accurate traffic jam alarm and jaywalking photograph and an operation method. The electronic police comprises a jaywalking detector, an automatic jaywalking photograph device, a vehicle detector and an analysis and processing unit which comprises a green light signal input interface, a vehicle detector detection signal input interface and a traffic jam alarm signal output interface. The analysis and processing unit presets a queue elimination period alarm threshold Ta and a green light driving period alarm threshold Tb. The condition that the vehicle detector is employed is monitored for Ta from the moment the green light is on, if the vehicle detector is continuously employed all the time, the traffic jam alarm signal is immediately sent out. The condition that the vehicle detector is employed is monitored from Ta until the green light is off, if the vehicle detector is continuously employed for not less than Tb, the traffic jam alarm signal is immediately sent out. The condition that the jaywalking detector is employed is monitored from the moment the green light is on until the green light is off, if the jaywalking detector is continuously employed for not less than Tb, the traffic jam alarm signal is immediately sent out.
Description
technical field [0001] The invention relates to an electronic police for accurately alarming traffic jams and taking pictures of running a red light in urban traffic management and an operating method thereof. Background technique [0002] In modern urban road traffic management, electronic police has been widely used as an auxiliary means of law enforcement. The current general-purpose electronic police with an automatic camera function usually includes an automatic camera electronic police for running a red light and an automatic camera electronic police for speeding on road sections without signal light control. [0003] Red light automatic camera electronic police, usually consists of a red light detector, an analysis and processing module with signal light red signal input interface, image acquisition equipment, communication lines, etc. Automatically take pictures of vehicles running red lights. From the perspective of urban road traffic management, this kind of elec...
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IPC IPC(8): G08G1/01
Inventor 姜廷顺李志恒郑通刘刚王一良张滨
Owner 姜廷顺