Verification device and method for automobile braking performance detection system based on stereo vision

A technology of automobile braking and detection system, which is applied in the direction of measuring device, vehicle test, machine/structural component test, etc. Simple, high-accuracy results

Inactive Publication Date: 2017-07-04
JILIN UNIV
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  • Application Information

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Problems solved by technology

[0003] At present, there is no device for comprehensive verification of the vehicle braking performance detection device based on stereo vision

Method used

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  • Verification device and method for automobile braking performance detection system based on stereo vision
  • Verification device and method for automobile braking performance detection system based on stereo vision
  • Verification device and method for automobile braking performance detection system based on stereo vision

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Embodiment Construction

[0026] The specific content and implementation of the present invention will be further described in detail below in conjunction with the embodiments shown in the accompanying drawings.

[0027] A verification device for a vehicle braking performance detection system based on stereo vision, the device is mainly composed of a longitudinal movement mechanism, a transverse movement mechanism and an industrial control computer. The longitudinal movement mechanism is composed of a longitudinal guide rail 10 , a longitudinally movable trolley 9 configured with a light receiving plate and a longitudinal driving device 8 . The lateral motion mechanism is composed of a lateral guide rail 7 , a laterally movable trolley 6 configured with a red light source, and a lateral drive device 5 . Described driving device is made up of vertical and horizontal stepper motor 12,22, driver, controller, vertical and horizontal tension pulley 16,25, vertical and horizontal drum bearing 19,28, vertical...

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Abstract

The invention relates to an automobile brake performance detecting system calibrating apparatus and an automobile brake performance detecting system calibrating method based on stereoscopic vision and belongs to automobile performance road-test equipment. The automobile brake performance detecting system calibrating method includes the steps of adopting two cameras to acquire light spot images on a light interception plate; by the aid of a computer image processing technique, performing light spot image processing and three-dimensional coordinate reconstruction to acquire curvilinear motion tracks of a light spot in a constant-speed motion, a constant-acceleration motion and a constant retarded motion respectively; evaluating the precision of an automobile brake performance detecting system on the basis of the stereoscopic vision. The automobile brake performance detecting system calibrating apparatus comprises two customized guide rails, a mobile trolley configured with the light interception plate, a mobile trolley configured with a light source, two stepping motors, four tensioning wheels, two photoelectric-axis encoders and an industrial control computer. The automobile brake performance detecting system calibrating apparatus and the automobile brake performance detecting system calibrating method have the advantages that a moving track of a braking process of an automobile can be simulated by the mobile trolleys in real time, the method is novel and unique in design philosophy and high in verifying precision, the calibrating apparatus is simple in structure and convenient to mount and operate, and thus, the apparatus and the method are promising in application and promotion prospect.

Description

technical field [0001] The device of the invention belongs to testing equipment for testing the accuracy of a vehicle performance testing system, and in particular relates to a testing device and method for a vehicle braking performance testing system based on stereo vision. Use two cameras to collect the light spot image on the light receiving plate, use computer image processing technology to process the light spot image and reconstruct the three-dimensional coordinates, obtain the movement track of the light spot in the process of uniform speed, uniform acceleration and uniform deceleration, and evaluate the car based on stereo vision The accuracy of the braking performance detection system. The device has the characteristics of good detection accuracy and system reliability, and the device has simple structure and reasonable design, and reduces the manufacturing cost of the detection device. Background technique [0002] Braking performance is an important indicator of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
Inventor 张立斌刘焕峰岳洪伟吴岛刘琦峰韩玲苏建刘玉梅陈熔单红梅丁兆强檀忠意
Owner JILIN UNIV
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