Research on sway detection method of subway train based on MEMS gyroscope technology

Aiming at the sway of the subway train when it is running, this paper proposes a sway detection method for subway trains based on MEMS gyroscope technology. The method uses MEMS gyroscope to obtain the variation range of the rolling angle and pitch angle of the subway train, and then uses the wavelet filtering algorithm to denoise, and finally obtains a smooth fitting curve by the least squares method. Through the processing of this method, the sway information of the subway train can be obtained more effectively, which has reference significance for the realization of comprehensive subway detection.