多处理器结构的工业控制微型计算机系统

MICROCOMPUTER SYSTEM FOR INDUSTRIAL CONTROL WITH MULTIPROCESSORS

从提高工业控制计算机系统的ＲＡＳ性能出发，提出了一种多主结构的工业控制微型计算机系统的设计方案．系统核心单元由三个同构型的ＣＰＵ模板构成，依靠互测互诊、故障隔离和系统重构等手段，使系统的平均无故障运行时间大大延长．在三模取二（ＴＭＲ）方式下工作，可以杜绝瞬态故障和干扰造成的运行错误，与单ＣＰＵ系统和普通双ＣＰＵ系统相比，ＲＡＳ性能得以全面提高．

This paper introduces a design scheme of highperformance microcomputer system for industrial control with graded network structure. Three CPU boards are used to make up a central governmentunit shared BUS. Singlechip computer is used to make principal I/O data channels intelligent. Depending on effective methods of hardware redundancy, fault detection and fault diagnosis, RAS performance of the system is reinforced.And parallel ability and flexibility of the system is also improved.