A Fault Diagnosis Method for Infrared Thermal Axis Audio Channel Based on Signal Characteristics

Abstract

The invention discloses an infrared hot box audio channel fault diagnosing method based on signal features. The method comprises the steps that infrared hot box audio channel line signal features are acquired through an audio monitoring module, whether a system is failed or not is judged, and when a fault occurs, a monitoring terminal is communicated with analyzing and diagnosing equipment to analyze fault causes. According to the infrared hot box audio channel fault diagnosing method based on the signal features, the working state of an infrared hot box temperature detection system can be monitored in real time, when the state is abnormal, whether the fault occurs in an infrared host or an audio channel is judged in time, the responsibility of a vehicle department and a communication department is clarified, the number of dispatched workers is decreased, and the operation and maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the field of fault diagnosis of an infrared shaft temperature detection system, in particular to a fault diagnosis method for an audio channel of an infrared thermal shaft based on signal characteristics. Background technique [0002] Infrared axle temperature detection systems are widely used in railway systems to monitor vehicle axle temperatures in real time. The system is mainly composed of infrared host, audio channel and monitoring center. The infrared host is maintained by the vehicle department, and the audio channel is maintained by the communication department. [0003] The infrared hosts of the infrared shaft temperature detection system are widely distributed and are in an unattended field environment. The audio channel line is long and complex, involving two departments. There are problems such as high failure rate, difficulty in fault location, and difficulty in defining responsibilities. [0004] At present, ma...

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Problems solved by technology

[0003] The infrared hosts of the infrared shaft temperature detection system are widely distributed and are in an unattended field environment. The audio channel line is long and complex, involving two departments, and there are problems such as high failure rate, difficulty in fault location, and difficulty in defining responsibilities.

[0004] At present, manual inspection is mainly used for daily operation and maintenance, and it is impossible to monitor the working status of the infrared shaft temperature detection system in real time. When the status is abnormal, it cannot be determined in time whether the fault occurs in the infrared host or the audio channel. On-site investigation, resulting in waste of personnel

[0005] In addition, the communication protocol of the infrared shaft temperature detection system is often not public. Even if the decoded data of the audio channel line signal of the infrared thermal shaft is obtained, the meaning of the data cannot be known, and it is impossible to accurately determine whether the system is faulty.

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