实时测控分布式系统的容错调度算法研究

根据目标系统的体系结构和功能分布特性以及实时性要求，文章提出了一种混合式实时容错调度算法，该算法对系统中服务器机组和工作站机组的任务分别实施对称式调度和以处理机负载平衡为目标的调度。当系统执行过程中检测到处理机故障，通过双机切换和冗余任务动态唤醒的办法进行系统重构，实现了目标系统硬实时和软实时共存的容错需求。

Researches on Fault-Tolerant Scheduling Algorithm for Real-time Distributed TT&C Systems

According to the system architecture,fu nc tion distributed characteristics and real-time requirements of the objective sy stem, the paper brings forward a mixed real-time fault-tolerant scheduling alg orithm, which implements the symmetrical scheduling and the scheduling aimed at processor load balance for a server set and a workstation set in the system. Whe n the system detects the processor fault during its performing procedure, it can achieve the system reconstructing by duplex computer switchover and redundancy task dynamic awakening, and meet the requirements of fault-tolerance of the coe xistence of hard real-time and soft real-time in the objective system.