稼働時における機能仕様変更を可能とする連動装置デザイン

抄録

This paper discusses the design of PRIME (Progressive interlocking by utilizing microelectronics) which allows the signal engineer to modify the function of interlocking system, controls the train route safely within a station area, while operating time.
This system is a railway signal control system, composed by bases of 32 bits fail-safe computer. The modification of function of interlocking system while operating time is achieved by on-line loading of modified data, data transmission between mutual fail-safe computers, memory separation of each type data, fixing of data size by adoption of matrix structured data, checking of non-modifying part by supporting tool.
By adopting the above design, the modification work of function which have been done only in the night time, after finishing train operation, can be performed while train operation time. It makes rapid progress of improvement work and maintenance work of interlocking system.