The invention belongs to the field of urban rail transit, and discloses a method for measuring time-space synchronization information of a rail inspection system. According to the method, the train speed is completed calculated through measurement information of a gyro assembly and an accelerometer assembly, the speed estimation accuracy is improved by optimizing the state equation, the estimated train speed is converted into the equivalent trigger pulse, the trigger pulse is utilized to perform synchronous trigger sampling on sensors carried by a train, reduction of the time-space synchronization efficiency is avoided, and the sensors carried by the inspection system are prevented from working asynchronously. Accurate matching of position information at the sampling moment of the sensors is achieved through segmentation fitting interpolation, and the data analysis efficiency after measurement is improved.
本发明属于城市轨道交通领域,公开了轨道巡检系统时空同步信息测量方法。本发明通过陀螺组件、加速度计组件测量信息完成列车速度的解算,通过优化状态方程,提高了速度估计准确性,并将估计的列车速度折算成等效触发脉冲,利用触发脉冲对列车搭载的传感器进行同步触发采样,避免时空同步效率降低,防止巡检系统搭载的传感器工作不同步。通过分段拟合插值实现了传感器采样时刻位置信息的准确匹配,提高了测量作业完成后的数据分析效率。
Method for measuring time-space synchronization information of rail inspection system
轨道巡检系统时空同步信息测量方法
05.11.2021
Patent
Elektronische Ressource
Chinesisch
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