| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fail-safe computer control system for permitting n faults including faults within a majority decision circuit, where n is a natural number.SOLUTION: A multiple system computer including the same logic includes a majority power switch 3 constituted of a power supply and a switch, and each computer mutually checks up output results by required operation and the majority power switch of a computer in another system is controlled according to the checkup result, thus turning off a faulty computer by majority decision. In the case of n-fail-safe, the number of multiple system computers is set to 2n+1 and the numbers of serial and parallel majority power switches are set to n andC, respectively by majority decision presupposing a plurality of simultaneous faults. |
