基于2/3(G)表决冗余加速度传感器容错技术的研究

Sensor Fault-tolerance Principle and Method Study of Tilting Train Based on 2/3(G) Vote System

决定摆式列车能否进行商业运营最基本的条件是摆式列车的可靠性问题 ,而传感器工作的可靠性是其首要环节。本文针对我国首列摆式列车的实际运行条件 ,对摆式列车加速度传感器容错技术原理与方法进行探讨 ,提出了加速度传感器的容错技术可采用 2 / 3 (G)表决冗余容错策略。本文中的所有算法用线路实测数据进行了仿真 ,编制了相应的可移植到DSP系统上的程序 ,该程序已在专为摆式列车开发设计的DSP系统上运行通过 ,并且通过了线路试验的初步检验 ,经多次现场试验证明该算法是有效和实用的。

The research of tilting train in our country has been in the stage of practicality. The main content of this paper is about sensor fault-tolerance, and the correlative signal processing algorithms, providing the control system with accurate and reliable uncompensated signal filtering-delay-compensation signal. The sensor fault-tolerance is studied, so do the fault-tolerance algorithms of parallel connection system and 2/3(G) vote system for hardware redundancy. All the derivation and realization processes of the these algorithms are discussed in detail. All the algorithms presented in this paper are simulated through the data gained in the test-on-line. The C program to realize optimal can be easily transferred to DSP system, it performs well in the DSP system designed for tilting train, and it has also passed the preliminary test in the test on line.