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Expressway accident detection and early warning system and method based on short-time traffic flow

A short-term traffic flow and expressway technology, applied in traffic flow detection, traffic control system, traffic control system of road vehicles, etc., can solve problems such as poor accident recognition effect, achieve high real-time performance, improve safety performance, The effect of low computational cost

Active Publication Date: 2022-01-04
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 highway accident detection and early warning system and method based on short-term traffic flow to solve the problem of poor accident recognition effect of the existing highway accident intelligent detection system

Method used

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  • Expressway accident detection and early warning system and method based on short-time traffic flow
  • Expressway accident detection and early warning system and method based on short-time traffic flow
  • Expressway accident detection and early warning system and method based on short-time traffic flow

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Embodiment 1

[0058] Such as Figures 1 to 3 As shown, the present embodiment provides a highway accident detection system based on short-term traffic flow, including:

[0059] A plurality of short-term traffic flow acquisition devices 1 are arranged at intervals along the expressway, and the short-term traffic flow acquisition devices 1 are used to collect sound signals corresponding to detection points and perform preprocessing, and then input the preprocessed data into short-term traffic flow The flow identification model identifies and counts short-term traffic flow data, and wirelessly transmits the short-term traffic flow data to the host computer 2 at preset time intervals;

[0060] The upper computer 2 is used to use the preset continuous number of short-term traffic flow collection devices 1 as a detection unit, divide the detection section into multiple detection intervals, and collect data according to each short-term traffic flow collection device 1 in each detection interval. ...

Embodiment 2

[0094] This embodiment provides a highway accident early warning system based on short-term traffic flow, including an early warning module and the highway accident detection system based on short-term traffic flow as described in Embodiment 1;

[0095] 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;

[0096] When the expressway accident detection system based on short-term traffic flow 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 also uses Real-time monitoring of the position of the tail end of the congested traffic flow upstream of the location of the accident congestion event; and generating an early warning command wirelessly transmitted t...

Embodiment 3

[0108] This embodiment provides a quick detection method for expressway accidents based on short-term traffic flow, including:

[0109] S1: Acquire sound signals collected at detection points along the expressway at preset time intervals and perform preprocessing;

[0110] S2: Input the preprocessed data into the short-term traffic flow identification model to identify and count the short-term traffic flow data;

[0111] 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.

[0112] 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 detection and early warning system and method based on a short-time traffic flow, and the system comprises a plurality of short-time traffic flow collection devices which are arranged along an expressway at intervals and are used for collecting sound signals of corresponding detection points and carrying out the preprocessing of the sound signals, inputting the preprocessed data into a short-time traffic flow identification model for identification and statistics to obtain short-time traffic flow data, and wirelessly transmitting the short-time traffic flow data to an upper computer according to a preset time interval and an upper computer that is used for taking a preset continuous number of short-time traffic flow acquisition devices as a detection unit, dividing a detection road section into a plurality of detection intervals, and judging 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 in 24 hours without being limited by conditions such as weather, illumination, power supply and high-speed flow.

Description

technical field [0001] The invention relates to the field of traffic accident detection, in particular to a highway accident detection and early warning system and method based on short-term traffic flow. 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 techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/16G08B21/18G06N3/04G06N3/08
CPCG08G1/0133G08G1/166G08B21/18G06N3/08G06N3/045
Inventor 李振宇王馨曼李岱乐
Owner 李振宇
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