Real-time detection and analysis device for metro vehicle braking performance

Abstract

The invention discloses a real-time detection and analysis device for metro vehicle braking performance. The detection and analysis device comprises a speed measuring radar, an acceleration meter, a pressure sensor, a temperature sensor, a wireless data acquisition module, a wireless data receiving module, a data acquisition box wirelessly connected with the wireless data receiving module, and a computer terminal, wherein the speed measuring radar is arranged below a locomotive and used for acquiring actual running speed data of a train; the acceleration meter is arranged on a floor of a train compartment and used for acquiring real-time acceleration data of the train; the pressure sensor is used for acquiring train braking cylinder pressure data; the temperature sensor is arranged on a train bogie and used for acquiring train brake shoe surface temperature data; the acquired data is transmitted to the data acquisition box through the wireless data acquisition module and the wireless data receiving module and then is transmitted to the computer terminal for analysis and printing through the data acquisition box. The detection and analysis device has the advantages that the accuracy of a dynamic braking test can be greatly improved and the labor productivity is improved.

Description

technical field [0001] The invention relates to a subway vehicle detection test device, in particular to a real-time detection and analysis device for the braking performance of a subway vehicle. Background technique [0002] At present, domestic subway vehicle dynamic data detection mainly adopts two methods: one is to collect the shaft speed (or motor speed) through the shaft end speed sensor, and then transmit the data to an external computer through the train network system. The braking distance is obtained after the data is calculated by the calculation software. The second is to collect the shaft speed (or motor speed) through the shaft end speed sensor, and then transmit the data to the on-board processor through the train network system. After calculation, the processor will feed back the braking distance to the driver's cab display. [0003] On a rail vehicle, the stability of the vehicle system largely depends on the reliability and accuracy of the speed signal it...

AI Technical Summary

Problems solved by technology

[0004] Rail vehicles are usually long in length, and the internal layout of the vehicle is complex. The wired measurement system will have problems such as difficult line layout during measurement and serious interference of measurement signals during transmission.

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