深圳地铁轨检车检测系统的研制

采用构架与轴箱间的侧滚和垂向位移量修正的测量技术、CCD光电传感器和高频响二维自控电路,研制出构架式光电伺服轨距测量装置,提高了轨道几何检测系统的安全性和稳定性。钢轨波磨检测系统根据惯性测量原理,采用模拟—数字混合滤波的数据处理方法,消除了速度对检测结果的影响。由数据库服务、数据采集处理计算机、数据应用计算机、高速网络打印机、QNX4实时多任务操作系统、SQL数据库管理系统和轨检数据实时处理软件共同构成了车载局域网数据实时处理系统,自动完成检测数据的采集处理、修正、合成,并根据需要以波形和表格的形式实时显示和打印输出轨道几何数据。

Development of the Inspection System for Shenzhen Metro Track Inspection Car

The frame type photoelectric servo gauge measurement device is developed by applying the technology of side-rolling and vertical displacement correction of the frame and axle box, adopting CCD photoelectric sensor and high frequency 2D automatic control circuit. It improves the security and the stability of track geometry profile measurement system. According to inertia principle, rail undulatory wear inspection system adopts analog digital composite filtering method to process data and eliminates the speed influence on measurement results. The on-board LAN real-time data processing system is composed of database service, data collection and processing computer, data application computer, high speed network printer, QNX4 real-time multitask operation system, SQL database management system and the software for real-time processing of rail inspection data. Onboard LAN can automatically carry out the collection, processing, modification and integration of measurement data. It realizes the functions of displaying the track geometry data waveform in real time and printing the waveform diagrams with the network printer according to demands.