Redundancy control system

The utility model relates to a redundancy control system, which comprises a first system of computer system, a second system of computer system, an intersystem arbitration module and a synchronizing device, wherein the intersystem arbitration module is respectively connected with the first system of computer system and the second system of computer system; each system of computer system comprises a first set of computer subsystem, a second set of computer subsystem and an inner-system arbitration module; the inner-system arbitration modules are respectively connected with the corresponding first set of computer subsystems and the corresponding second set of computer subsystem; and the synchronizing device is respectively connected with each set of computer subsystem in each system of computer system. By the redundancy control system, the inner-system synchronization is realized, the safety of the system is guaranteed and the intersystem synchronization is also realized, so that the reliability of the system i