鉄道信号用線区集中電子連動システムの開発と評価 [in Japanese] Development of Centralized Interlocking System for Railway Signalling and its Evaluation [in Japanese]
Access this Article
Search this Article
This paper describes the development of a centralized interlocking system (CIS) for railway signalling and its evaluation in terms of safety and availability. The CIS is applied to the Ibara-line (41.7km) connecting Soja, Okayama Prefecture, and Kannabe, Hiroshima Prefecture, which began operations at January 11, 1999. The objectives in developing a CIS were to provide all the facilities available in both interlockings and a CTC (Centralized Traffic Control) system at significantly reduced cost while maintaining high levels of safety and reliability.<br>The CIS is regarded as being divided into control center and lineside subsystems (see Fig.1). At the heart of the control center subsystem is the interlocking itself, which is a fail-safe multiple processor system. The lineside subsystem consists of the lineside data cable and trackside functional modules forming a fail-safe local area network.<br>The trackside functional modules are connected to the control center subsystem which control them by trackside data links using single mode(SM) optical fiber cables. For the CIS we developed a long distance data transmission system by means of SM optical fiber technology, permitting a direct link over 20km without using a repeater.<br>This system enables direct interlocking between starting signals reading into each end of a single line section. Furthermore, a train direction logic featuring a diversity train detection method that was produced in this development improves a safety level and a utilization rate in the single line signalling.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 119(11), 1307-1314, 1999-11
The Institute of Electrical Engineers of Japan