Multicomputer system priority chain voting device applied to space application
A multi-machine system and priority chain technology, applied in the field of electronic information, can solve the problems of complex hardware design, no cold backup support, and no mutual exclusion of hardware, so as to avoid disorderly competition and achieve the effect of strong real-time performance.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.
[0032] The logic block diagram of the multi-machine priority chain voting device is as follows: figure 2 shown.
[0033] The multi-computer priority chain voting device includes several sets of identical subsystems, which are respectively installed in each computer. Each subsystem is divided into two modules, which are the local Fv voting module and the local MC state control module.
[0034] Local Fv voting module input signal:
[0035] 1) The self-test results of the fault-tolerant software of the machine and the comparison results of multi-machine communication;
[0036] 2) Local hardware watchdog signal (WDT#);
[0037] 3) Local reset signal (RESET#);
[0038] 4) Other stand-alone clears the local Fv signal (CLR_FV#).
[0039] Local Fv voting module output signal:...
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