嵌入式系统中热备份双机切换技术研究

Study on thermal back-up machine switching technology in embedded system

由于实时系统对可靠性的要求十分严格,在一些特殊行业中为了保证系统的可靠运行而对系统或系统某些部分采用热备份。文章简要介绍了在采用双机热备份实时控制系统中,以数据选择芯片为主,为系统热备份的两套控制机器进行切换选择的切换电路设计方案。

Since a real-time system is strict with reliability, thermal back-up is adopted to ensure a system run reliably by the system or some parts of the system in some special business. The scheme of circuit switching of two control machines in real-time control system that adopted dual machine thermal back-up and give priority to data choice chip are introduced simply.