Vehicle safety integrated monitoring system for running trains

Abstract

The invention discloses a vehicle safety integrated monitoring system for running trains. The system comprises a rail-side multi-sensor fieldbus intelligent detecting unit, a multi-element information processing machine transmit computer unit, a rail-side wireless communication unit and a detection station monitoring information control terminal. The system integrates multiple detection functions, achieves intelligent multi-sensor information fusion, conducts diversification parallel processing on various parameters, combines a wireless communication mode, greatly expands monitoring space, comprehensively improves system monitoring capacity, and enables the monitoring success rate to be greatly improved. The system can be widely used in harsh working environment of the two sides of railway steel rails, and can be maintained conveniently in later period. The detection station monitoring information control terminal uploads processed data to a superior vehicle safety monitoring center and a system cloud processing unit, instant sharing of information in each unit is achieved, and accuracy, reliability, instantaneity and stability of each vehicle safety parameter data of the running trains are ensured.

Description

technical field [0001] The invention belongs to the field of railway vehicle operation safety detection, and in particular relates to a comprehensive detection system for real-time detection of various operation safety parameters of train vehicles. Background technique [0002] The railway 5T system has existed for a long time. It has been more than 40 years since the earliest implementation of THDS. The so-called 5T system mainly includes 5 independent system units, namely, the bus running safety monitoring system (Train Coach Running Diagnosis System-TCDS), the vehicle axle temperature intelligent detection system (Trace Hotbox Detection System-THDS), the vehicle rolling bearing fault track side Trackside Acoustic Detection System-TADS, Trouble of Moving Freight Car Detection System-TFDS and Track Performance Detection System-TPDS, among which, Except that TCDS is installed on running passenger train vehicles, the other four independent system units are respectively insta...

AI Technical Summary

Problems solved by technology

However, both sensors are infrared thermistor temperature sensors, which can only detect the local temperature of the wheel axle in a very small range (less than 40 square millimeters), but cannot measure the overall heat distribution of the wheel axle of the vehicle, let alone the temperature of the train. The temperature distribution on the outside of vehicle wheels, brake shoes and bogies cannot be detected in time if the faults of wheels, brake shoes and bogies are detected, and the comprehensive requirements for the detection of train vehicle safety parameters cannot be met.

[0008] (4) The trackside sensors of the 5T system are connected to the main engine of the detection station through wired cables. Based on the vast distribution of railways in my country, the environment on the railway trackside in some areas is very harsh. Many connecting cables are in harsh environments for a long time. Faults emerge in endlessly, which brings great problems to the normal operation of 5T, and the operation and maintenance costs are relatively high

[0009] (5) The 5T system does not have an industrial computer that independently processes the data information of the wheel sensor, so when the speed of the running train is below 15km / h, the overall detection is in an abnormal state, and all detection results are unreliable and untrustworthy , unavailable; when the monitored vehicle suddenly accelerates, decelerates, or stops in an emergency and then restarts, etc., the monitoring results are the same as the above, completely invalid

[0010] (6) There are no monitoring camera devices indoors and outdoors in the detection station of the 5T system, and it is impossible to grasp the outdoor working environment and indoor working conditions. When the trackside sensor fails, the system will be paralyzed because there are no further safeguards

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