Rail-side acoustic system for detecting fault of train fan

Abstract

The invention discloses a rail-side acoustic system for detecting a fault of a train fan. The rail-side acoustic system comprises a rail-side signal acquisition system for signal acquisition and a field control center for controlling the rail-side signal acquisition system, the rail side signal acquisition system comprises an acoustic acquisition unit, an axle counting, speed measuring and positioning unit, an image acquisition unit and a train information acquisition unit; the field control center comprises a power supply unit, a network communication unit, a train information analysis unit and an acquired information analysis unit. Through an acoustic diagnosis mode, when the motor train unit passes through a detection area, whether abnormal sound and abnormal sound occur to fans on thetwo sides (below the train) of a train body, such as a train air conditioner fan, a ventilation device fan, a traction cooling fan, a traction transformer fan and a traction converter fan, is automatically detected, and the specific position of the fan with the abnormal sound are analyzed.

Description

technical field [0001] The present invention relates to a device for automatically detecting abnormal sounds and noises in fans on both sides of the car body (under the car), such as train air-conditioning fans, ventilator fans, traction cooling fans, traction transformer fans, traction converter fans, etc. . Background technique [0002] With the rapid development of China's high-speed rail, there are already a considerable number of EMUs. People not only demand to enjoy the safety and speed brought by EMUs, but also put forward higher requirements for the quietness and comfort of travel tools. [0003] Different from ordinary railway passenger cars, EMUs have decentralized power, and the electric drive system is distributed in each carriage, including a large number of traction motors, traction transformers, and traction converters. Due to the existence of operating heat, it relies on a large number of traction cooling fans to cool down. The failure of the fan will cause ...

AI Technical Summary

Problems solved by technology

[0004] Existing fan detection or monitoring patents realize the detection scheme of installing detection components on the fan body. However, there are many types and quantities of fans for railway train fans, and the wiring and installation positions of the car body itself are very limited. The installation of a large number of on-board monitoring components brings extreme High cost, if there is a problem with the detection device in the later stage, it will be difficult to maintain

The mobile detection solution in the depot can only target one group of trains at a time and requires manual intervention. For the trains that enter the warehouse but not enter the depot, the detection has the problem that it cannot cover all the trains entering the depot

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