LCF-96列车超速防护系统故障检测方法的研究  

Study on fault detection method for LCF-96 automatic train protection system

作　　者：闫剑平[1] 唐涛[1] 高继祥[1] 汪希时[1] 

机构地区：[1]北方交通大学电子信息工程学院,北京100044

出　　处：《铁道学报》2000年第5期112-115,共4页Journal of the China Railway Society

基　　金：北京市科技项目! ( 951 1 50 2 0 0 )

摘　　要：基于算术码实现了一种实时性较高的检错方法。这种检错方法不但能检测运算结果故障 ,还能够检测运算器故障、时序故障及时间故障。编码方法最终由四种特征组成 :模为 A的算术码 ,数据标志 ,时间标志 ,时序标志。为了在系统的处理过程中保持码字的特征 ,分析推导了编码运算器的实现算法和补偿常数的产生算法。This paper discusses a fault detection method suitable for computer system based on traditional arithmetic code with key A. The method can detect not only operation errors, but also operand errors, sequence errors and time errors. Finally, the used code is in fact constituted of four types of signatures intimately mixed: an arithmetic code with key A, a data signature, a timing signature and a sequence signature. Coded operators and Compensation constants are required to maintain the characteristics of the code. Faults are detected by comparing the final signature of variable to the precomputed check sequence.

关 键 词：列车超速防护系统 编码 故障检测 算术码 

分 类 号：U284.481[交通运输工程—交通信息工程及控制]