Study And Realization Of Fault-tolerant Technology For Parallel Computer On Satellite

This paper mainly aims at the characteristics of the hardware and software structure of the parallel computer on satellite, and has fulfilled researches of fault tolerant technique in three aspects of control theories and engineering: the first research of the system level fault-tolerant module is based on the system structure of the parallel computer on satellite, a kind of cold backup module and a kind of hot backup module for multiprocessor computer have been put forward. Then the research of software fault tolerant technique which is based on the operate system named RTEMS has been carried, the mission level fault-tolerate arithmetic and the system level fault-tolerate mechanism and strategies based on the check point technique have been put forward, at the same time the self-repair technique of software which has used the technique of system re-inject has been studied. Finally the technique of components level fault-tolerant based on FPGA has been studied, a kind of two level fault-tolerant project which aims at the fault-tolerant module of the parallel computer on satellite has been put forward, and the augmentative of circuit that project design realization need is little, this project can avoid any breakdown of any part logic circuit of the FPGA.