Railway vehicle width overrun laser detecting method and apparatus

A technology for laser detection and railway vehicles, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of low vehicle speed, high cost, complex structure, etc., achieve strong anti-electromagnetic and optical interference, and improve safety Reliability and availability, effects of high temporal and spatial resolution

Active Publication Date: 2008-01-30
BEIJING DOVA LASER TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, due to the limitations of its low scanning frequency and angular resolution, the large helical pitch between the two scans leads to a large size of objects that can be detected and resolved, or the vehicle running speed is low, so it is not suitable for fast-moving small objects. It needs to be installed on the overall gantry built on both sides of the line, which takes up a lot of space and is not easy to meet the installation position. The structure is relatively complicated and the cost is expensive.
Therefore, installation and popularization in many railway transportation sites are limited

Method used

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  • Railway vehicle width overrun laser detecting method and apparatus
  • Railway vehicle width overrun laser detecting method and apparatus
  • Railway vehicle width overrun laser detecting method and apparatus

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Embodiment Construction

[0039] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] As shown in Figure 1, it is a schematic diagram of the overall structure. Wherein, 22 is the loam cake of box body 25; 23 is the bottom plate of box body 25; 24 is the light-through port of laser transmitter and laser receiver; 26 is launch circuit board and single-chip signal processor circuit board box; 27 is laser Transmitter box body; 28 is a laser receiver box body; 29 is a combined bracket for installing a laser transmitter bracket and a laser receiver bracket; 30 is a DC power supply; above it is an audible and visual alarm 31; 32 is a mounting hole slideway; Relevant accessories are all fixed in casing 25 insides.

[0041] As shown in FIG. 2 , the semiconductor laser tube 1 in the laser transmitter and the collimating lens group 3 at its front end are placed in the emitting tube 2 together. The divergence angle of the ...

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Abstract

The invention relates to a laser detection method and device used for railway vehicle over the width-limited. According to the method and device, the laser transmitter emits detection laser beam, if the passed vehicle is over the width-limited, laser receiver receives the reflected laser signal and convert to electrical signal, then transmit to the MCU signal processor to process and identify, upload the alarm and location signs information output from the MCU signal processor to the host computer, and send out a sound and light alarm at the scene simultaneously. The device of the invention has the advantages of high spatial resolution, fast response time, strong anti-photoelectric interference, small occupation and easy installation, low cost and so on, which is especially suitable for the automatic detection and alarm of the railway vehicles and over width-limited of goods dynamically.

Description

technical field [0001] The invention relates to the technical field of traffic vehicle overrun detection and alarm, in particular to an automatic detection that is suitable for establishing a width overrun laser warning line on both sides of a railway line to check whether there is a dynamic width overrun in running railway vehicles and goods. Methods and Apparatus. Background technique [0002] The rapid development of modern railways and highways relies more and more on advanced, scientific and practical safety inspection systems. For railway and road vehicles and loaded goods, there are traditional and simple measurement methods for static width overrun detection when they are stopped or the speed limit is very low, but the detection efficiency is too low to be fully implemented. Compared with the static overrun detection, the dynamic width overrun detection when the vehicle is allowed to run at normal speed is more practical. It has a more significant role in ensuring t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02G01B11/04
Inventor 王启华王东波
Owner BEIJING DOVA LASER TECH
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