Radar-based vehicle queuing length detection method and system

A technology of queue length and detection method, applied in the field of intelligent traffic management, can solve the problems of unable to obtain the queue length, unable to provide the intelligent transportation system, etc., and achieve the effect of true and accurate data results.

Pending Publication Date: 2021-05-28
巍泰技术(武汉)有限公司
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  • Application Information

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Problems solved by technology

However, in this method, an accurate queue length cannot be obtained, and an ac

Method used

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  • Radar-based vehicle queuing length detection method and system
  • Radar-based vehicle queuing length detection method and system
  • Radar-based vehicle queuing length detection method and system

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Embodiment Construction

[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] figure 1 It is a schematic flow chart of a radar-based vehicle queuing length detection method provided by an embodiment of the present invention, as shown in figure 1 shown, including:

[0044] 101. Obtain the coordinates and instantaneous speed of the target vehicle at the intersection in the preset coordinate system, where the preset coordinate system is established with the radar installed at the intersection as the origin;

[0045] 102. Based on the coordinates and instantaneous speed of the target vehicle, determine the lane where the target vehicle is located and the current acceleration;

[0046] 103. Judging the state of the lane according to the lane wh...

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Abstract

The invention provides a radar-based vehicle queuing length detection method and system. The method comprises the steps of obtaining the coordinates and instantaneous speed of a target vehicle at an intersection in a preset coordinate system, and the preset coordinate system being built with a radar installed at the intersection as an original point; determining a lane where the target vehicle is located and a current acceleration based on the coordinates and the instantaneous speed of the target vehicle; judging the state of the lane according to the lane where the target vehicle is located and the current acceleration; and if the lane is in the stop state, recording a tracked and lost target in the lane, and adding the lost target into a queuing area of the lane to calculate the queuing length of the lane. According to the method, the acceleration is used for judging the state of the intersection at the moment, meanwhile, the defect that static and low-speed targets are difficult to recognize by a radar is utilized, tracking loss of vehicles serves as key information to achieve calculation of the vehicle queuing length, and the data result is more real and accurate.

Description

technical field [0001] The present invention relates to the technical field of intelligent traffic management, and more specifically, to a method and system for detecting vehicle queuing length based on radar. Background technique [0002] With the rapid development of the national economy and the acceleration of the urbanization process, the number of motor vehicles and road traffic in my country has increased dramatically. How to effectively control these vehicles has become one of the most direct concerns of the people. Road traffic lights play an important role in the urban traffic network system, and the problem that accompanies road traffic lights is the phenomenon of vehicle queuing. Accurately obtaining the queuing length of vehicles is an important prerequisite for the intelligent transportation system to control the timing of road traffic lights, and it can also further improve the traffic management efficiency and the bearing capacity of the road system. [0003...

Claims

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Application Information

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IPC IPC(8): G01S13/50G01B7/14G08G1/04G08G1/052
CPCG01S13/50G01B7/14G08G1/04G08G1/052
Inventor 赵国盛褚兆飞陈瑞刘景顺
Owner 巍泰技术(武汉)有限公司
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