Freight train transfinite computer vision inspection system

A technology of computer vision and detection system, applied in the direction of railway vehicle shape measuring device, measuring device, transportation and packaging, etc., can solve problems such as easy omission or false alarm, difficulty in identifying out-of-limit items by sensors, missing detection by optical sensors, etc. To achieve the effect of prolonging the service life, clear picture without jitter, and improving shape data processing

Inactive Publication Date: 2013-01-23
TIANJIN SIBOKE TECH DEV
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Problems solved by technology

[0004] 1. The measurement reliability is not high: the more commonly used method is to use optical sensors including lasers. This sensor can only measure the obstruction of objects within the light passing range. It belongs to point detection and is easy to miss or false alarm.
[0005] 2. Insufficient coverage of the measurement range: bot

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  • Freight train transfinite computer vision inspection system
  • Freight train transfinite computer vision inspection system

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Embodiment Construction

[0020] Such as figure 1 As shown, in the freight train overrunning computer vision detection system of the present invention, the collected information on the top and both sides of the freight car is processed by the image preprocessing module, the coordinate system transformation module, and the high-speed measurement module successively after the image information is input by the camera module. Finally, reliable information is provided to the station managers through the alarm classification module.

[0021] The image preprocessing module refers to: performing image preprocessing such as denoising, thinning, and binarization on the captured laser marking images of the top and both sides of the truck.

[0022] Described coordinate system transformation module refers to: the laser marking image coordinates of the top and both sides of the truck photographed by the camera are converted into cross-sections of real physical space by a space transformation equation (this equation ...

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Abstract

The invention provides a freight train transfinite computer vision inspection system, and belongs to the field of precision optical measurement. The freight train transfinite computer vision inspection system comprises a line laser module, a camera module, a vision processing module and an alarm classification module. The data output end of the camera module is connected with the data input end of the vision processing module; the output end of the vision processing module is connected with the data input end of the alarm classification module; the video processing module comprises an image preprocessing module, a coordinate system transformation module and a high-speed measurement module. The hardware of the freight train transfinite computer vision inspection system consists of a camera and a line-structured optical laser which are arranged on a portal frame; and various transfinite sizes of the top and the two sides of a freight train can be measured automatically and quickly.

Description

technical field [0001] The invention belongs to the fields of precision optical measurement, computer software development, etc., and relates to the geometric dimension technology of online measurement of the outer contour of a large-scale moving object (train) using a computer vision method. Background technique [0002] When railway freight vehicles enter the station, if the goods carried are over-width, over-height, or over-limit, it will cause damage to station facilities and personnel. Therefore, online real-time detection of the appearance of freight trains is conducive to timely judging the safety status of freight trains. [0003] Due to the variety of shapes and types of over-gauge trucks, it is necessary to detect and classify them under a unified standard. There are following deficiencies in the prior art: [0004] 1. The measurement reliability is not high: the more common method is to use optical sensors including lasers. This sensor can only measure the obstru...

Claims

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Application Information

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IPC IPC(8): B61K9/02G01B11/24
Inventor 罗金荣牛晓芳
Owner TIANJIN SIBOKE TECH DEV
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