Device and method for detecting automobile brake time sequence based on stereoscopic vision

A technology of automobile braking and detection devices, which is applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve the problems of difficult to achieve efficient and fast detection requirements, low detection accuracy, and high-efficiency detection devices, etc., to achieve Efficient and fast detection requirements, direct economic benefits, and the effect of high measurement accuracy
CN105510052AInactive Publication Date: 2016-04-20JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2016-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device and a method for detecting an automobile brake time sequence based on stereoscopic vision, and belongs to automobile safety performance detecting equipment. The device comprises four same-type cameras, two same-specification gantry supports, an industrial control computer and the like. The device is characterized in that automobile body images of the left side and the right side of an automobile are collected by utilizing two groups of cameras, labeled contour line extraction and three-dimensional coordinate reconstruction are carried out by adopting a computer image processing technology, a motion track of labelling in an automobile brake process is established, the rotating speed of each wheel can be obtained in real time, a brake time sequence of each wheel is obtained, and the automobile brake performance is evaluated. According to the device disclosed by the invention, a brake locking time sequence of each wheel can be obtained during the automobile brake process. The method disclosed by the invention has the advantages that the design concept is novel and unique, the detection accuracy is good, the device structure is simple, and the installation and operation are convenient; a research result has certain theoretical value and certain practical value, and a very good application and promotion prospect is obtained.
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Description

technical field

[0001] The device of the invention belongs to detection equipment for automobile braking performance, in particular to a detection device and method for automobile braking timing based on stereo vision. Use 4 cameras to collect the images of the left and right sides of the car, use computer image processing technology to extract the labeling contour line and reconstruct the three-dimensional coordinates, calculate the angular velocity of the labeling during the braking process of the car, and obtain the speed of each wheel in real time, and obtain each wheel Braking sequence, to evaluate the braking performance of the car. The device has the characteristics of high detection precision and good system reliability, fast detection speed, strong repeatability, simple structure and reasonable design, and reduces the manufacturing cost of the detection device. Background technique

[0002] During the braking process of a car, the braking timing of each wheel is ve...

Claims

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