基于最大期望算法的列车完整性检测方法.pdf

第39 卷第2 期 铁 道 学 报 Vol. 39 No. 2
2 0 1 7 年 2 月 JOURNAL OF THE CHINA RAILWAithm Based Train Integrity
Detection Method
LI Sihui1， CAI Baigen1，3， WEN Yinghong1，3， WANG Jian1，2， SHANGGUAN Wei1，2， LIU Jiang1，2
(1. School of Electronics and Information. Engineering, Beijing Jiaotong University, Beijing 100044» China ；
2. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China ；
3. Beijing Engineering Center of EMC and GNSS Technology for Rail Transportation., Beijing Jiaotong University, Beijing 100044» China)
Abstract ： Global Navigation Satellite System(GNSS)-based Train Integrity Monitoring System(TIMS) is a cost-
effective solution for train integrity detection for the middle and low density railway lines in western China. At
the same time, it can be used as an auxiliary redundancy detection method for air pressure-based brake pipe de­
tection , which allows for the increased level of safety of train operation. This paper investigated the problem
of train integrity detection which determines whether train consists remain intact during train operation. A new
train integrity detection model was built, where both train complete state and parted state were considered.
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