Method for monitoring automobile overspeed based on distributed optical fibers

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 the automobile overspeed based on the distributed optical fibers comprises the steps of determining the automobile frequency characteristics through experiments and monitoring the automobile speed on site. The method has the advantages that distributed optical fiber equipment in an existing road section is fully utilized, overspeed detection of passing vehicles is achieved under the condition that cost is not increased, the whole method is simple in algorithm and small in calculation amount, and the application field of distributed optical fibers is expanded.

Description

technical field [0001] The invention relates to a vehicle overspeed monitoring technology, in particular to a method for monitoring vehicle overspeed based on distributed optical fibers. Background technique [0002] In highway construction, it is difficult to understand the geological conditions of the slope thoroughly in the preliminary investigation work, and the stability of the slope is affected by environmental comprehensive factors with dynamic changes. Therefore, it is necessary to focus on monitoring these parts. For example, the East Transit Section of the Qujing Southeast Transit Highway project uses distributed optical fibers with strong anti-interference ability, high sensitivity, and full-length coverage (for Every point can be monitored, avoiding the occurrence of serious disasters and missed inspections) Monitoring and other advantages have achieved good results in the safety monitoring of slopes. [0003] At present, speeding accounts for a very high propor...

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