A method for monitoring vehicle speeding based on distributed optical fiber

A technology of distributed optical fiber and automobile speed, which is applied in the traffic control system of road vehicles, measuring ultrasonic/sonic wave/infrasonic wave, measuring devices, etc. The effect of small quantity and expansion of application field

Active Publication Date: 2022-07-12
GUANGZHOU INST OF RAILWAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, in traffic accidents, speeding accounts for a very high proportion. The monitoring methods usually used include radar speed measurement, laser speed measurement, and video monitoring. These methods require the purchase of new equipment and increase costs.

Method used

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  • A method for monitoring vehicle speeding based on distributed optical fiber
  • A method for monitoring vehicle speeding based on distributed optical fiber
  • A method for monitoring vehicle speeding based on distributed optical fiber

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Experimental program
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Embodiment

[0039] Example: as figure 1 and 2 As shown, the method for monitoring automobile overspeed based on distributed optical fiber in this embodiment is characterized in that:

[0040] Including experiments to determine the frequency characteristics of automobiles, the above experiments to determine the frequency characteristics of automobiles include the following steps:

[0041] S101, let the experimental vehicle pass through the distributed optical fiber starting point of the road section;

[0042] S102, regularly record the distributed optical fiber strain data when the above-mentioned experimental vehicle passes by, and take the minimum value of the distributed optical fiber equipment at the time interval;

[0043] S103, displaying the above-mentioned distributed optical fiber strain data obtained in S102 in the time domain, and converting the time domain signal into a spectral signal by Fourier transform;

[0044] S104, find the frequency of the above-mentioned experimenta...

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Abstract

The invention relates to an automobile overspeed monitoring technology, in particular to a method for monitoring automobile overspeed based on distributed optical fibers. The method for monitoring vehicle overspeed based on distributed optical fibers of the present invention includes experimentally determining the frequency characteristics of the vehicle and monitoring the vehicle speed on the spot. Advantages: Make full use of the distributed optical fiber equipment in the existing road section, and realize the speeding detection of passing vehicles without increasing the cost. The whole method has simple algorithm and small calculation amount, and expands the application field of distributed optical fiber.

Description

technical field [0001] The invention relates to an automobile overspeed monitoring technology, in particular to a method for monitoring automobile overspeed based on distributed optical fibers. Background technique [0002] In highway construction, it is difficult to understand the geological conditions of the slope in the preliminary survey work, and the stability of the slope is affected by comprehensive environmental factors, which has the characteristics of dynamic change. It is very large, and there are many geotechnical problems involved, so it is necessary to carry out key monitoring on these parts. Every point can be monitored to avoid the missed detection of serious disasters) monitoring, etc., and achieve good results in the safety monitoring of the slope. [0003] At present, speeding accounts for a very high proportion of traffic accidents. The commonly used monitoring methods include radar speed measurement, laser speed measurement, and video monitoring. These ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/04G08G1/052G01H9/00
CPCG08G1/04G08G1/052G01H9/004
Inventor 黎剑华申富林黄奕辉陈沧王卫辉黄正红徐晓斌李旭辉许程龚莹
Owner GUANGZHOU INST OF RAILWAY TECH
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