Expressway accident rapid detection and early warning system and method

A highway and detection system technology, applied in the direction of road vehicle traffic control system, traffic control system, traffic flow detection, etc. The effect of safety features

Active Publication Date: 2021-11-12
李振宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a rapid detection and early warning system and method for expressway accidents to solve the problems of high cost and poor accident recognition effect of the existing intelligent detection system for expressway accidents

Method used

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  • Expressway accident rapid detection and early warning system and method
  • Expressway accident rapid detection and early warning system and method
  • Expressway accident rapid detection and early warning system and method

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Experimental program
Comparison scheme
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Embodiment 1

[0055] Such as Figures 1 to 3 As shown, the present embodiment provides a highway accident rapid detection system, including a host computer 2 and a plurality of short-term traffic flow collection devices 1 arranged at intervals along the highway;

[0056] The short-term traffic flow acquisition device 1 is used to collect short-term traffic flow data corresponding to the detection point, and wirelessly transmit the short-term traffic flow data to the host computer 2 at preset time intervals; the short-term traffic flow acquisition The device 1 includes a sound detection device and / or a laser detection device; the sound detection device is used to collect the sound signal of its corresponding detection point and perform preprocessing, and obtain short-term traffic flow data according to the peak value of the sound signal per unit period; the laser The detection device is used to collect the number of times that the traffic flow of the corresponding lane cuts and shoots the la...

Embodiment 2

[0093] This embodiment provides a highway accident early warning system, including an early warning module and the expressway accident rapid detection system as described in Embodiment 1;

[0094] The early warning module includes a visible laser emitting unit 14, an LED array 15 and a display screen 16 arranged on each of the short-term traffic flow collection devices 1;

[0095]When the highway accident rapid detection system recognizes an accident congestion event, an early warning command is generated and wirelessly transmitted to the early warning module within the preset range of the accident congestion event location; the high-speed highway accident rapid detection system is also used for real-time monitoring of accident congestion The position at the tail end of the congested traffic flow upstream of the event position; and generate an early warning instruction wirelessly transmitted to the early warning module within the preset range of the end position of the congeste...

Embodiment 3

[0107] This embodiment provides a quick detection method for expressway accidents, including:

[0108] S1: Acquire sound signals and / or laser signals collected at detection points along the expressway at preset time intervals and perform preprocessing;

[0109] S2: Obtain short-term traffic flow data according to the peak number of sound signals per unit period or the number of cutting laser beams;

[0110] S3: Use the preset continuous number of detection points as a recognition unit, divide the detection road section into multiple detection intervals, and judge whether there is an accident or congestion according to the change state of the short-term traffic flow data collected by each detection point in each detection interval event.

[0111] For the specific implementation process of the above steps, refer to Embodiment 1, which will not be repeated here.

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Abstract

The invention discloses an expressway accident rapid detection and early warning system and method. The detection system comprises an upper computer and a plurality of short-time traffic flow acquisition devices arranged along an expressway at intervals; the short-time traffic flow acquisition devices are used for acquiring short-time traffic flow data of corresponding detection points and wirelessly transmitting the short-time traffic flow data to the upper computer according to a preset time interval; and the upper computer takes a preset continuous number of short-time traffic flow acquisition devices as an identification unit, divides a detection road section into a plurality of detection intervals, and judges whether an accident congestion event occurs or not according to the change state of the short-time traffic flow data acquired by each short-time traffic flow acquisition device in each detection interval. Accidents can be rapidly detected and pre-warned in 24 hours, the system is not limited by weather, illumination, power supply, high-speed flow and other conditions, front-end equipment for detection and pre-warning and the like is quite low in price, and the system is suitable for large-scale installation.

Description

technical field [0001] The invention relates to the field of traffic accident detection, in particular to a rapid detection and early warning system and method for expressway accidents. Background technique [0002] Highway driving speed is fast, the speed difference is large, the state of the driver is different, the casualty rate of traffic accidents is generally high, especially the secondary accident is the second excitation of the risk factor of an accident, and its static collision often causes greater damage, resulting in Personal and property losses are even more serious. With the continuous and steady growth of China's car ownership, how to further strengthen highway traffic safety management is a key topic of research by road traffic safety management departments at all levels and academic circles. With the rapid development of electronic information technology, highway technology Informatization construction, especially the scientific and technological constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/04G08B5/38G08B25/00
CPCG08G1/0104G08G1/04G08B5/38G08B25/008
Inventor 李振宇
Owner 李振宇
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