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Two-dimensional laser scanning method for detecting overload of freight train

A technology of two-dimensional laser and scanning method, which is applied in the direction of railway car body parts, freight cars, measuring devices, etc., can solve the problems such as difficult to complete the measurement requirements, and achieve the effect of high precision, strong anti-interference ability and clear principle

Inactive Publication Date: 2004-09-08
铁科检测有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The cross-sectional profile of vehicles and goods is a spatial curve composed of multiple points, while conventional laser ranging is aimed at a single point, so it is difficult to complete the measurement requirements

Method used

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  • Two-dimensional laser scanning method for detecting overload of freight train
  • Two-dimensional laser scanning method for detecting overload of freight train
  • Two-dimensional laser scanning method for detecting overload of freight train

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Embodiment Construction

[0014] figure 1 Shown is a schematic representation of the various constraints related to vehicle loading. It can be seen from the figure that the boundaries at all levels are polygonal. At different heights, the allowed loading width is different; at different widths, the allowed loading height is also different. Therefore, only obtaining the maximum height and maximum width of the vehicle and cargo cannot accurately determine whether the vehicle and cargo exceed the limit. Only after the full-section contour data of vehicles and goods are measured and compared with the specified limit data can it be accurately judged whether the vehicles and goods are overrun, and the overrun position, overrun level and overrun value of the vehicle and goods can be provided in detail. information.

[0015] exist figure 2 In the shown embodiment, two laser sensors A and B are used, which is the most economical solution. The two sensors are arranged obliquely above the line, and each sens...

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Abstract

The present invention discloses one kind of two-dimensional laser scanning method for detecting overload of freight train. By means of two-dimensional laser scanning technology and the combination of several sensors, the whole section contour data of railway freight train and freight are measured. Under the same coordinate system, the measured contour data of railway freight train and freight are compared with limited contour data to judge the existing overhead and provide specific overload part, degree and number.

Description

technical field [0001] The invention relates to a two-dimensional laser scanning method for detecting overloading of railway freight vehicles. Background technique [0002] In order to ensure the safety of railway traffic, it is necessary to monitor the loading status of freight trains to ensure that the vehicles and loaded goods are within the allowable limits. Various gauges such as railway rolling stock gauges and allowable loading gauges are polygonal. Under normal circumstances, each part of the vehicle and its cargo is not allowed to exceed the rolling stock limit. Under special circumstances, the cargo loaded on the vehicle is allowed to exceed the rolling stock limit, but it needs to be controlled within a certain level of loading limit. [0003] At present, the known methods for detecting whether the loading of railway freight vehicles exceeds the allowable limit mainly include infrared measurement and photogrammetry. Among them, the infrared measurement method i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D3/00G01G19/04G06K7/10
Inventor 杨凤春柴雪松罗林张格明冯毅杰韩自力边久松吴旺青
Owner 铁科检测有限公司
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