Expressway tunnel park positioning detection and link alarm device and method

Abstract

The invention discloses an expressway tunnel park positioning detection and link alarm device and an expressway tunnel park positioning detection and link alarm method and belongs to the technical field of visible light detection. The device comprises a park positioning detection device, a terminal computer, ZigBee equipment and a variable message sign, wherein the park positioning detection device further comprises an alarm lamp, a dual-element visible illumination intensity detecting circuit and a processor module. The park positioning detection device provided by the invention is small in size, low in cost and convenient to mount, the travelling state of a vehicle in a tunnel can be detected without a dead corner left, and a vehicle stop position can be determined; and two thermistors and a band-pass filter are innovatively combined into the dual-element visible illumination intensity detecting circuit, and the dual-element visible illumination intensity detecting circuit is used for detecting the condition that the resistance of the dual-element thermistors is not uniformly changed due to the illumination of vehicle lamps during a vehicle driving process, so that interference on detection caused by environmental illumination and external radio-frequency signals is prevented, and the vehicle driving process and abnormal park condition are more effectively detected.

Description

technical field [0001] The invention belongs to the technical field of visible light detection, and in particular relates to a parking location detection and linkage alarm device and method for expressway tunnels. Background technique [0002] Due to the closedness of the road space in the tunnel, the space environment is narrow, the light changes greatly, and the vision is not clear, the fault parking in the tunnel is not easy to be discovered by other vehicles in time, and it is very easy to cause secondary traffic accidents, and there is a potential danger of traffic accidents; once an accident occurs The traffic interruption time is longer, the risk is great, and the accident handling is more difficult. At present, the parking location detection of expressway tunnels is still used to install video surveillance systems along the tunnel to realize on-site monitoring in expressway tunnels. This method has a good detection effect in the case of less traffic flow, and at the ...

AI Technical Summary

Problems solved by technology

[0002] Due to the closedness of the road space in the tunnel, the space environment is narrow, the light changes greatly, and the vision is not clear, the fault parking in the tunnel is not easy to be discovered by other vehicles in time, and it is very easy to cause secondary traffic accidents, and there is a potential danger of traffic accidents; once an accident occurs occur, the traffic interruption time is longer, the risk is high, and the accident handling is more difficult

At present, the parking location detection of expressway tunnels is still used to install video surveillance systems along the tunnel to realize on-site monitoring in expressway tunnels. This method has a good detection effect in the case of less traffic flow, and at the same time, when the installation of video surveillance cameras is not dense. There will be dead spots that cannot be monitored, which requires high capital investment and intensive installation to ensure the reliability of monitoring and reduce dead spots, which not only increases the cost but also increases the difficulty of monitoring

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