| 摘要 |
PURPOSE:To reset automatically the computer by converting an operation state signal of the computer into a program running state signal and always comparing it with the normal running pattern to detect a program abnormal running of the mode not detected by a supervisory timer. CONSTITUTION:The operating state signal of the computer B is converted into a program running state signal by a sequential signal converting circuit 1. The program running state signal and the running pattern of a pattern memroy 2 at the normal operation are compared by a comparator circuit 3 at all times. When the state dissident to any running pattern is consecutive for a prescribed time, it is judged that the program is in the abnormal running, a reset signal generating circuit 4 is driven to output a reset signal, which is fed to the computer B via a reset signal line d1 thereby resetting the computer B. |
