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Track circuit fault monitoring platform and monitoring method based on frequency shift signal

A track circuit and fault monitoring technology, applied in electronic circuit testing, measuring electricity, measuring devices, etc., to achieve the effect of simple quantification process and improved accuracy

Active Publication Date: 2018-05-08
TAIYUAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0005] The existing track circuit fault diagnosis methods mostly use the effective value of voltage and current signals to judge. Aiming at the problem that the judgment process is complicated and the frequency domain information is often ignored, the present invention provides a track circuit fault monitoring platform and its monitoring based on frequency shift signals method, the purpose is to improve the portability, real-time and effectiveness of the track circuit fault monitoring means, as a supplement to the existing track circuit monitoring method

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  • Track circuit fault monitoring platform and monitoring method based on frequency shift signal
  • Track circuit fault monitoring platform and monitoring method based on frequency shift signal
  • Track circuit fault monitoring platform and monitoring method based on frequency shift signal

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Embodiment Construction

[0027] Implementation of the track circuit fault monitoring platform and monitoring method based on the frequency shift signal provided by the present invention, the specific implementation is as follows.

[0028] First, implement a track circuit fault monitoring platform based on frequency-shifted signals, including data receiving module, online monitoring module, feature extraction module, fault diagnosis module, fault early warning module and data storage module; the track circuit fault monitoring platform is composed of The above-mentioned data receiving module, online monitoring module, feature extraction module, fault diagnosis module, fault early warning module and data storage module are integrated, and the design is completed on LabVIEW, and the front-end detection data is processed in real time to realize real-time detection of track circuit faults. monitor.

[0029] The specific design process is as follows:

[0030] (1) Data receiving module: through the ActiveX c...

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Abstract

A track circuit fault monitoring platform and a monitoring method based on a frequency shift signal are disclosed. The monitoring platform is designed and completed based on LabVIEW and carries out real-time processing on front end detection data. The monitoring method is characterized in that a portable frequency shift signal detector detects a key parameter of a frequency shift signal in a steelrail and uploads data to a cloud server; and the monitoring system downloads time frequency information of the frequency shift signal from the cloud server in real time, extracts a time domain of thefrequency shift signal and a frequency domain characteristic value and takes as fault characteristic quantities, an adaptive neural fuzzy inference system is used to carry out fault classification, and finally early warning information of a ZPW-2000A non-insulation track circuit is given. In the invention, the frequency shift signal can be effectively used to monitor a track circuit fault, and the platform and the method can be used as a supplement of railway electric service section outdoor monitoring.

Description

technical field [0001] The invention relates to a ZPW-2000A non-insulated frequency-shifting track circuit fault diagnosis system and a fault diagnosis method thereof, in particular to a track circuit fault monitoring platform and a monitoring method based on a frequency-shifting signal. technical background [0002] As the basic safety equipment of railway transportation, ZPW-2000A non-insulated track circuit has been established as a unified standard for future railway development. However, its use environment is complex, and the use of rails as wires to transmit signals is susceptible to external environmental factors or human interference. The occurrence of faults has become a key factor affecting the safety and reliability of the train control system. The track circuit is a nonlinear coupling system. When it fails, it may cause changes in the circuit structure and circuit coupling, resulting in changes in the transmission signal-frequency shift signal, which provides fa...

Claims

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Application Information

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IPC IPC(8): G01R31/28
CPCG01R31/2843
Inventor 田慕琴陈姝姝宋建成
Owner TAIYUAN UNIV OF TECH
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