异步容错计算机原理研究

The subject provides advanced technology and plan for asynchronous real-time control.embedded fault tolerant computer architecture. This fault tolerant computer is request real time.and high reliability processing. This type fault tolerant computer is presenting voting algorithm for.isolation fault. The channels must be keeping synchronism so that to vote on the voting layer, and.mask error data. For the reason of high clock speed of components nowadays it is very difficult to.implementing synchronism at clock level, especially when the channels are designed as various.architectures. So we suggest another asynchronous fault-tolerant computer simple synchronous.mechanism in the field, each channel works asynchronously..国家自然科学基金资助项目结题报告.4.The inter-channel asynchrony has two forms. One is the system in which each channel runs on.same frequency and another is system in which each channel runs on different frequency. The.difference between these two asynchronous systems and synchronization system is discussed..Then the impact of asynchrony degree on relation between the running tasks and characteristic of.closed-loop control is analyzed. The first form enable runs on asynchrony, if allow maximal the.inter-channel asynchrony is Αmax=MAX(δ)+T. The second form must runs on synchronization..The distributed fault-tolerant computer system is discussed. One the inter-channel.synchronization technology and one the distributed synchronization algorithm is approach. Present.the fault-tolerant schedule algorithm, the mixed of the double system and the master/standby.system self-accommodation schedule algorithm. The framework technology and the.object-oriented technology is introduced, to design distributed fault-tolerant computer system. Use.the production of research on the UMS distributed fault-tolerant computer system already.

本项目提出一种异步工作的实时控制嵌入式容错计算机结构。给出异步工作条件下的表决算法和表决器设计。从另一种角度解决高速时钟同步困难和保持通道独立性等关键问题。这种硬件结构简化的容错计算方式对于当今迅猛发展的数模混合系统具有重要实用意义。