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Road running state detection method and system based on radar and video fusion

A technology of video fusion and running status, which is applied in traffic control systems of road vehicles, radio wave measurement systems, traffic control systems, etc., can solve problems such as detection errors, reduce computing pressure, improve robustness, and have high accuracy Effect

Inactive Publication Date: 2021-06-11
JIANGSU SINOROAD ENG TECH RES INST CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Millimeter-wave radar can penetrate fog, smoke, and dust. By capturing reflected signals, it can track multiple lanes and multiple targets, and can obtain parameters such as distance, speed, and angle. In the case of identifying different positions of large vehicles at the same time, detection errors will occur

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  • Road running state detection method and system based on radar and video fusion
  • Road running state detection method and system based on radar and video fusion
  • Road running state detection method and system based on radar and video fusion

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0063] like figure 1 As shown, a road running state detection method based on radar and video fusion includes the following steps:

[0064] Step 1: Collect data on moving targets through the millimeter-wave radar and video detector. The millimeter-wave radar collects the position, speed and angle of the moving target in real time; the video detector collects high-definition road image information in real time. Preprocess the data, filter interference and invalid information, and ensure the quality of sensor data;

[0065] Step 2: Convert the coordinates of the millimeter-wave radar data to the coordinates of the video pixel coordinate system, and register the time o...

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Abstract

The invention relates to the technical field of road traffic state detection, and particularly relates to a road running state detection method and system based on radar and video fusion. The method comprises the following steps: 1, carrying out the data collection of a moving target through a millimeter-wave radar and a video detector, and carrying out the preprocessing of the data; 2, converting millimeter wave radar data coordinates into video pixel coordinate system coordinates, and registering the time of the millimeter wave radar and the time of a video detector to realize mapping of a redundant vehicle region of interest of the millimeter wave radar to a video image and completing fusion of space and time; 3, performing vehicle identification on the region of interest by using a convolutional neural network obtained through historical image data training, determining the region of interest of a vehicle, and eliminating radar false alarm information; and 4, carrying out traffic statistical data calculation according to a vehicle identification result, and acquiring traffic operation state parameters in a certain time period, wherein the parameters comprise a flow, an average speed and a queuing length.

Description

technical field [0001] The invention relates to the technical field of road traffic state detection, in particular to a method and system for detecting road running state based on radar and video fusion. Background technique [0002] The rapid development of the national economy has continuously stimulated the travel needs of residents. The number of motor vehicles per capita has increased year by year, and inter-city traffic activities have become increasingly frequent. Expressways, as the main artery of road traffic, will carry more and more travel traffic. The construction of smart expressways is an effective means to improve expressway traffic efficiency and operational safety, and the all-round intelligent perception system is the basic condition for realizing intelligent control, intelligent service and intelligent decision-making of expressways. With the development, the performance of traffic status detection is gradually optimized, and the types of equipment are div...

Claims

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Application Information

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IPC IPC(8): G01S13/86G01S13/91G06N3/04G06N3/08G08G1/01
CPCG01S13/867G01S13/91G06N3/04G06N3/08G08G1/0104
Inventor 张志祥杨阳刘强关永胜
Owner JIANGSU SINOROAD ENG TECH RES INST CO LTD
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