LKJ train control system state monitoring and fault diagnosis method and system

Abstract

The invention provides an LKJ train control system state monitoring and fault diagnosis method. When the CPU processor of a detection module cannot receive a speed pulse signal or the received speed pulse signal has abnormality in comparison with a preset standard value, a first electronic switch is switched to a first channel self-checking circuit, and the CPU processor transmits signals to enter the first channel self-checking circuit. A first signal acquisition circuit acquires the signals passing through the first channel self-checking circuit and transmits the signals back to the CPU processor. The PCU judges the signals, and the channel of signal transmission has no problem and external equipment has problem if the signals are the same; or the signals transmitted by a pressure sensor are processed in the same way. Meanwhile, the invention also provides a system applying the LKJ train control system state monitoring and fault diagnosis method. The system comprises a pulse signal detection module and a current signal detection module which are connected with the detection device. Whether the channel or the external equipment has the abnormal accident can be rapidly and accurately judged so that maintenance is further facilitated.

Description

technical field [0001] The invention relates to an LKJ train control system, in particular to state monitoring and fault diagnosis of speed measuring, distance measuring and other equipment of the LKJ train control system during operation. Background technique [0002] LKJ train running speed measurement, or pressure sensors such as pipe pressure and wind pressure will transmit the measured data to the background monitoring system for analysis at all times. When encountering a fault, such as a jump or a problem with the signal transmission channel or an external device When a fault occurs, the received data will be zero or abnormal. At this time, the background monitoring system can only find that the fault occurred at a certain moment or within a certain period of time. However, it cannot determine whether the fault occurred in an external device or in the channel. . Contents of the invention [0003] The technical problem to be solved by the present invention is to prov...

AI Technical Summary

Problems solved by technology

[0002] LKJ train running speed measurement, or pressure sensors such as pipe pressure and wind pressure will transmit the measured data to the background monitoring system for analysis at all times. When encountering a fault, such as a jump or a problem with the signal transmission channel or an external device When a fault occurs, the received data will be zero or abnormal. At this time, the background monitoring system can only find that the fault occurred at a certain moment or within a certain period of time. However, it cannot determine whether the fault occurred in an external device or in the channel.

Images