Real-time broken rail detecting transmitter system inside long tunnel

Abstract

The invention discloses a real-time broken rail detecting transmitter system inside a long tunnel. The real-time broken rail detecting transmitter system inside the long tunnel comprises an upper computer and a lower computer. The upper computer comprises a single chip microcomputer, a signal producing module, an amplitude control module, a power amplifier module, a protection module, a detection module and a communication module. The single chip microcomputer enables frequency control words to be written in the signal producing module, the signal producing module is controlled to produce sine wave detecting signals with a corresponding frequency, the sine wave detecting signals are output to a steel rail through the power amplifier module, and meanwhile the detection module collects the frequency and the voltage of the output signals. The single chip microcomputer compares the collected voltage and the collected frequency with set voltage and frequency information, when breakdowns happen, an amplitude control unit and the signal producing module are used for adjusting and enabling collected lower computer information to be transmitted to the upper computer to be displayed and to give an alarm through a communication unit. The real-time broken rail detecting transmitter system inside the long tunnel is suitable for real-time broken rail detecting inside the long tunnel with a hostile environment.

Description

technical field [0001] The invention relates to the field of railway transportation safety, in particular to a real-time rail break detection transmitter system in a long tunnel. Background technique [0002] The problem of broken rails is an important topic of concern for railway transportation safety. Once the rails on the railway operation line break, if there is no reliable rail broken detection equipment as a protective measure, major vicious accidents will inevitably result. The track circuit can well realize the function of real-time broken rail detection, and is currently the most important and effective real-time broken track detection equipment. [0003] In the long tunnels of our country, the traditional track circuit is replaced by the axle counting plus loop line, and the real-time track breaking detection function of the original track circuit disappears. Due to the particularity of the long tunnel environment, the existing mature real-time track breaking dete...

AI Technical Summary

Problems solved by technology

[0010] Comprehensive analysis of broken rail detection technology at home and abroad, although there is a real-time online broken rail detection scheme suitable for seamless long rails, but it has a long distance to locate broken rails, the accuracy is greatly affected by the environment of the track bed, and it cannot be detected when the train occupies a section and other shortcomings, it is not suitable for the detection of broken rails in long tunnels with ballastless tracks with harsh ballast bed environments

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