摘要
通用三取二安全计算机平台可用于联锁、车载ATP和轨旁系统中,主要包括MPU板和DI/DO板。MPU板采用三取二表决结构,实现数据通信、同步表决和通用平台功能;DI板采用上下对称式双重收发检测电路;DO板采用内在式故障-安全电路。该平台满足轨道交通对安全计算机的安全性和可靠性的要求。
The universal two out of three safety-critical computer platform can be used in computer inter- locking, automatic train protection and trackside system including MPU module and DI/DO module. The MPU adopts two out of three voting structure to realize data communication, synchronization vote and general plat- form function; the DI adopts up and down symmetrical dual transceiver detection circuit; the DO adopts intrin- sic fail-safe circuit. The universal two out of three safety-critical computer platform can meet the needs of com- puter platform with high security and reliability.
出处
《信息化研究》
2017年第5期42-45,共4页
INFORMATIZATION RESEARCH
关键词
通用
三取二
同步表决
上下对称双重收发
故障-安全
universal
two out of three
synchronization vote
up and down symmetrical dual transceiv-er
fail-safe
