| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit board for detecting false operation/failures in real time by comparing/determining combinations of tasks (states) among CPU with respect to the CPU operating in cooperation in the circuit board mounting a plurality of CPU. <P>SOLUTION: In the circuit board mounted by the plurality of CPU 1a to 1n, the CPU 1a to 1n have monitoring parts 5 for outputting task states of the respective CPU. The circuit board is provided with a diagnosis circuit 6 which is connected to the plurality of CPU 1a to 1n, compares/determines combinations of the task states of the plurality of CPU 1a to 1n on the basis of information on the task states outputted by the monitoring parts 5, and detects false operation/failures of the circuit board on the basis of the comparison/determining results. <P>COPYRIGHT: (C)2008,JPO&INPIT |
