Subway noise online monitoring system based on VR simulation

Abstract

The invention relates to a subway noise online monitoring system based on VR simulation. The system comprises a sound pressure sensor, an outdoor camera, a monitoring case and a VR simulation monitoring device. The sound pressure sensor and the outdoor camera are both connected with the monitoring case, the monitoring case and the VR simulation monitoring device are connected with each other, andthe sound pressure sensor is used for measuring sound pressure data between a subway train and a rail. The outdoor camera is used for shooting video data of a subway operation environment. The monitoring case is used for transmitting video data, acquiring and transmitting sound pressure data, extracting and transmitting noise data and receiving a data acquisition command. The VR simulation monitoring device is used for outputting a data acquisition command, acquiring track structure internal force data, processing video data and sound pressure data, displaying the video data and the sound pressure data and displaying noise data. Compared with the prior art, the subway operation data can be completely collected in real time, and through remote data analysis and processing, visual operationand early warning functions are achieved.

Description

technical field [0001] The invention relates to the technical field of rail noise reduction, in particular to an online subway noise monitoring system based on VR simulation. Background technique [0002] With the rapid development of urban subway rail transit, people pay more and more attention to the noise pollution caused by the operation of subway trains. Excessive noise will seriously affect people's normal work and rest, and cause harm to physical and mental health and reduce work efficiency. When the train speed reaches or exceeds a certain critical speed, the subway will induce ground waves to cause strong vibration of the track structure, which will affect the safety and comfort of the subway operation, and in severe cases will cause damage to the track structure and train derailment. ; At the same time, the propagation through ballast and roadbed will also cause strong vibration and structural noise of buildings around the track line, and noise radiation will have ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the noise problem of the subway, there is currently a lack of all-weather online monitoring and collection of subway noise. On the one hand, because the subway environment is usually underground or in the suburbs, many unexpected situations will affect the monitoring effect during actual monitoring, and the operation of the subway cannot be monitored. As a result, the collected data information is not complete enough, and there is a certain error with the actual data; on the other hand, the existing subway monitoring system cannot perform remote data analysis and processing of on-site data, nor does it have visual display operations, damage damage identification and early warning functions; in addition, the delay of data transmission will make it impossible to take effective noise reduction measures in time

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