接触网在线监测

Overhead Contact System On-line Monitor Technology Based on Wireless Sensor Network

Jiangjian Xie

School of Electrical Engineering Beijing Jiaotong University

Beijing, China 08117331@

Abstract—This paper introduces the development of an effective low cost monitor system to assist the normal function and the maintenance of Overhead Contact System(OCS). The whole system contains a remote monitor centre, some local monitor centres and lots of monitor modules. All the communications are through wireless network. The paper also shows how such a system could be used for OCS monitor, and the detection items are listed. This system can solve the limitations of the inspection van which is used for OCS monitor before, it's of great significance to improve the reliability and safety of high speed electric railway.

Keywords-Overhead Contact System(OCS); Wireless Sensor Network(WSN); On-line Monitor

Yi Wang, Tingting Lu

School of Electrical Engineering Beijing Jiaotong University

Beijing, China

OCS are of great significance to improve the reliability and safety of high speed electric railway.

Conventional method of OCS maintenance is based on periodical detections using inspection van[2]. This method have limitations: it may leave many defects undetected for a relatively long time, also some equipments on the mast couldn't be detected by inspection van. Because of the advantages of wireless communication, wireless communication techniques have also developed rapidly in recent years. Especially with smart low cost wireless communication techniques like Wi-Fi, Bluetooth, and ZigBee are entering into maturity, thus making it possible to develop a wireless sensor network to monitor OCS. The system described in this paper aims to solve these above limitations by introduce an on-line monitor technology to monitor OCS in real time based on wireless sensor network.

II.

PROPOSED SYSTEM STRUCTURE

I. INTRODUCTION

The opening of the Beijing-Tianjin, Zhengzhou-Xi'an, Wuhan-Guangzhou Intercity Railway mark entering high speed railway era in china. Train speed and density are consistently increasing in the last decade. So higher safety and reliability requirements for railway signal, control and infrastructure are needed. The reliability of traction power system(TPS) greatly depends on the reliability of overhead contact system(OCS)[1]. OCS is a no-reserve system, in case the OCS went wrong, this would cause the interruption of the traffic or even became a serious incident. So researches on the monitor technology of

The whole system contains remote monitor centre, local monitor centre and monitor module. Figure. 1 is the schematic of the system, There are two kinds of monitor modules: the majority of monitor modules are continuous monitor modules distributed along the feeding section, which have determined

Figure.1 Schematic of the system

978-1-4244-6255-1/11/$26.00 ©2011 IEEE

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