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Experimental facility, method and system for traffic accident scene photographing and surveying theory

A technology based on traffic accidents and principles, applied in the field of experimental equipment, can solve problems such as difficult to understand and complex relationships

Inactive Publication Date: 2014-04-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This transformation relationship involves translation transformation and rotation transformation, the relationship is complicated and difficult to understand

Method used

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  • Experimental facility, method and system for traffic accident scene photographing and surveying theory
  • Experimental facility, method and system for traffic accident scene photographing and surveying theory
  • Experimental facility, method and system for traffic accident scene photographing and surveying theory

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0036] see Figure 1-Figure 4 , an experimental device for the principle of photographic survey on the scene of a traffic accident, including a base, a power supply, an object space coordinate system D-XYZ, an auxiliary space coordinate system S-XYZ, an image space coordinate system S-xyz, an image plane P, and a photography center S , object point A, image point a, control panel, controller, actuator 1, actuator 2, display device, bracket 10 and support rod 11 . Wherein, the power supply, controller, and control panel are installed in the base; the power supply is used for power supply; the controller is controlled by the buttons on the control panel and the signals of the touch screen, and is used to control the actions of actuator one and actuator two; the control panel On the 'pan', Six keys 'ω', 'κ', 'collinear' and 'reset' a...

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Abstract

The invention discloses an experimental facility, method and system for a traffic accident scene photographing and surveying theory. The experimental facility comprises a base and a power supply, and is characterized in that the base is provided with an object space coordinate system D-XYZ and a support rod, wherein the support rod is provided with an auxiliary space coordinate system S-XYZ and an image space coordinate system S-xyz, which share one origin S of coordinates, both the object space coordinate system D-XYZ and the image space coordinate system S-xyz are connected with an actuator, the base is provided with a controller and a control panel, the control panel is provided with a group of control keys, the controller is connected with the actuator and a display device, an image plane P, a photographing center S, an object point A and an image point a are also arranged at the upper end of the base, a connecting rod SA is connected between the photographing center S and the object point A, the connecting rod SA penetrates through the image plane P, the connecting rod SA and the image plane P intersect at the image point a, and the origin S of coordinates and the photographing center S are the same point.

Description

technical field [0001] The invention relates to an experiment tool, in particular to an experiment device, method and system for the principle of photographic surveying on the scene of a traffic accident. Background technique [0002] In the prior art, there is a lack of modeling and automatic demonstration experimental devices for photogrammetry principles used in traffic accident scene surveys, making it difficult to pass the coordinate transformation relationship between any point in the space and the corresponding image point in the photo after the photo is taken. Reality is shown intuitively. [0003] The traditional traffic accident scene survey method uses a tape measure to measure the distance, and then manually draws the accident scene map. This method has shortcomings such as time-consuming, large loss of on-site information, differences in on-site measurement data and drawn sketches due to the technical proficiency of the operators, and the inability to re-survey...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00G09B25/00
CPCG01C11/00G09B25/00
Inventor 许洪国陈强
Owner JILIN UNIV
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