轨道状态确认车检测系统的研制

根据高速旅客列车安全运行的要求,研制用于轨道状态确认车上的轨道几何检测系统、环境监视系统、限界检测系统及车载局域网系统。轨道几何检测系统采用惯性基准原理、陀螺平台和计算机实时处理等技术,通过专用的数字滤波数学模型计算水平、超高、高低、轨向、曲率,解决不同运行速度和不同运行方向检测结果的准确性和一致性问题;通过最新研制的车载局域网,实现计算机实时显示轨道几何波形、网络打印机打印波形图的功能。实时显示叠加轨道几何波形的线路周边环境图像。构架式光电伺服轨距测量装置,采用构架与轴箱间的侧滚和垂向位移量修正的技术,保证跟踪轨距点的稳定性,消除轴箱式轨距测量的不安全隐患。

Research on Measurement Systems of Track Status Confirmation Car

As required by the safe operation of high-speed passenger trains, the paper studies on the track geometry profile measurement system, the environment supervision system, the clearance measurement system and the on-board LAN system, which are used on the track status-confirmation car. The track geometry profile measurement system uses the inertia benchmark rationale, gyroscope platform and computer real-time processing technologies. With the specialized digital filtering mathematics model, it calculates the cross-level, superelevation, twist, alignment and curvature, and resolves the issue of accuracy and conformity of the measurement results at different speeds and in different operation directions. Through the on-board LAN net developed recently, it realizes the functions of displaying the track geometry waveform in real time, printing the waveform diagrams with the network printer, and displaying the ambient scenes of the overlapped track geometry waveform. The frame type photoelectric servo gauge measurement device uses the technology of side-rolling and vertical displacement correction of the frame and axle box, guarantees the stability of tracking the gauge point and eliminates the unsafe potential failures of the axle box type gauge measurement.