摘要
基于容错设计的思想，在硬件上采用两个异步工作的核心子单元，通过比较器来比较它们运行结果的正确与否，软件上则采用检测点技术进行检错。整个系统结构简单，实现了软硬件双重容错的目的。
Based on the knowledge of fault tolerant technique, this paper presents a microcomputer system with hardware and software. The hardware is made of two subsyStems,which are asynchronous. Their executive results are confirmed in comparator. The technology of checkpointing and rollback is for keeping software fault tolerant. The system is very simple and the dual fault tolerant is realized.
关键词
容错技术
检错
微机
硬件
软件
fail-safe
fault-tolerant technique
checkpointing technique
roll-back technique
error-dection
