| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for automatically eliminating a slight fault caused by a runaway of a program of a microcomputer before a safety device is operated by a hardware. SOLUTION: Outputs from respective sensors 4 are input directly or through a controller 2 to a resetting circuit 6. The circuit 6 judges a combination of the inputs and outputs a reset output to the controller 2 if the circuit 6 discovers an abnormal combination. The controller 2 receiving the reset output sets its microcomputer to a reset state, and restarts a program from an initial state. Thus, even in the case that the program of the microcomputer is run away, the microcomputer can be recovered by an initial reset and set to a normal control state.</p> |
