| 摘要 |
PURPOSE:To give correct information to an operator as a man-machine system by repeating cause identification for every diagnostic cycle and outputting a diagnostic message even when plural troubles occur. CONSTITUTION:Analog data Xi are AD-converted at a data collector 1 and compared with reference values Xa and Xb at an operation processor 2. When the data Xi are within the reference values Xa-Xb, ''0'' is stored 3 and, when outside the reference values Xa-Xb, ''1'' is stored 3. On the other hand, a cause- result tree CCT is stored in a storage device 4 and the operation process 5 of a node is performed by using the process information of the storage device 3 and CCT. Then at another operation processor 7, comparison between observed data from the device 3 and a logical operation value from a device 6 and change detection, cause identification, and estimating analysis of an entry node are performed and displayed 8. In this case, the cause identification is repeated for every diagnostic cycle and a diagnostic message is outputted even when plural troubles occur. |
