The invention discloses a metro train speed measurement method based on a millimeter-wave radar, and the method comprises the steps: S1, millimeter-wave radar equipment installation and calibration: enabling the millimeter-wave radar to be fixedly installed at the outer side of a train cab through a tool clamp, testing and measuring the installation posture of the millimeter-wave radar, and employing a gyro machine as the basis of dynamic calibration; step S2, radar signal acquisition and processing: millimeter wave radar message data are analyzed, interference of a subway line environment is reduced from the aspects of radar working parameter tuning and beam radiation optimization, and conditions are set to trigger high-frequency data acquisition; s3, data preprocessing and data analysis: preprocessing the collected data from the aspects of noise values, outliers and data reduction, identifying a detection target by adopting a density-based spatial clustering algorithm, and outputting target point cloud data; and S4, calculating the train speed and outputting the train speed in real time. According to the invention, the millimeter-wave radar is installed and the detected millimeter-wave radar point cloud data is analyzed in real time, so that accurate measurement of the train running speed is realized.
本发明公开了一种基于毫米波雷达的地铁列车测速方法,包括:步骤S1,毫米波雷达设备安装与标校:通过工装夹具将毫米波雷达固定安装于列车驾驶室外侧,并试验测量其安装姿态,使用陀螺机作为动态标校的依据;步骤S2,雷达信号采集与处理:解析毫米波雷达报文数据,从雷达工作参数调优及优化波束辐射方面降低地铁线路环境的干扰,并设定条件触发高频数据采集;步骤S3,数据预处理与数据分析:从噪声值、离群值和数据规约方面对采集数据进行预处理,采用基于密度的空间聚类算法识别探测目标,输出目标点云数据;步骤S4,计算列车速度并实时输出。本发明通过安装毫米波雷达并实时分析所探测的毫米波雷达点云数据,实现对列车运行速度的准确测量。
Metro train speed measurement method based on millimeter wave radar
一种基于毫米波雷达的地铁列车测速方法
2025-03-28
Patent
Electronic Resource
Chinese
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