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Vehicle component real object collision sequence image analysis method and its analysis system

A technology of vehicle components and sequence images, applied in image analysis, image data processing, railway vehicle testing, etc.

Inactive Publication Date: 2009-05-13
CENT SOUTH UNIV
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Problems solved by technology

[0007] The present invention provides a method for analyzing images of collision sequences of vehicle components that can objectively and truly obtain test data, and the system for analyzing images of collision sequences of vehicle components. kinematic parameters, to solve the problem of measurement of deformation, displacement, velocity, acceleration and other parameters in the process of high-speed collision

Method used

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  • Vehicle component real object collision sequence image analysis method and its analysis system
  • Vehicle component real object collision sequence image analysis method and its analysis system
  • Vehicle component real object collision sequence image analysis method and its analysis system

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Embodiment Construction

[0026] As shown in Figure 1, the image analysis system for physical collision sequences of vehicle components mainly includes cameras, lighting systems, monitors, triggering devices, wiring boxes, high-speed camera control computers and background computers.

[0027] The camera adopts 2 high-speed CCD cameras. The image acquisition accuracy is 2000 frames per second, the image size is 512x384, and the image color resolution is 24Bit. The lighting system adopts 48KW metal halide lamps. The triggering device is an automatic triggering acquisition. When the vehicle component is carried on the carrier trolley and moves to a certain position before hitting the wall 10, the triggering device is activated, thereby starting the camera operation. The distribution box is used to connect the camera, high-speed camera control computer, monitor, trigger device, and other remote control devices. The high-speed camera control computer can set camera parameters, control camera acquisition, ...

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Abstract

The invention discloses an analysis method of crash sequence images of real vehicle components and an analysis system thereof are used in 3D motion analysis after real-time crash tests of the real vehicle components. The analysis method comprises the following steps: performing image motion reproduction on the crash sequence images to get dynamic deformation data and residual deformation data of a detection target in the images; tracking target identifications in the crash sequence images, getting and outputting the data of speed and acceleration of the target by analyzing the motion parameters of the target. The analysis method can help objectively and really get test data, get related kinematics parameters by a functional relation between coordinates and time of the target, and solve the measurement problems of parameters such as deformation, displacement, velocity, acceleration and the like in high-speed crash course.

Description

technical field [0001] The invention belongs to the real-time test and collision sequence image analysis technology of vehicle component physical collision test, and specifically relates to a method capable of realizing vehicle component physical collision sequence image analysis and an analysis system adopted therefor. Background technique [0002] With the rapid increase of train speed in our country, train safety has become an important symbol of the development of modern high-speed railway technology. Train collision accidents seriously endanger the life and property safety of passengers and crew members. It is necessary to fundamentally prevent the occurrence of such accidents, but it is still difficult to do so at present. In order to reduce the losses caused by train collision accidents, it is an important way to reduce the losses caused by train collision accidents by conducting multi-body coupled impact dynamics research on trains and developing impact-resistant and...

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Application Information

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IPC IPC(8): G01M17/08G01M7/08G06T7/20
Inventor 许平高广军姚松姚曙光刘堂红鲁寨军
Owner CENT SOUTH UNIV
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