| 摘要 |
PURPOSE:To control securely information on the maintenance inspection of a vehicle, etc., by counting pulses generated at every interval of unit distance, and generating a warning when the counted value attains to an expected value. CONSTITUTION:When the pulse signal generated at every interval of unit distance is applied to an input terminal 1, a run distance counter 2 starts counting run distance. A latch A3 stores the count information of the counter 2 at the time when a preset signal is supplied from an input terminal 9. A substracter 4 processes information data Na and Nb from the counter 2 and latch A3 by subtraction to generate a data output Na-Nb. This data is compared by a comparator 5 with data Nc of a run specifying counter 6 which specifies the expected run distance to generate a specific signal when Na-Nb>=Nc, setting a latch B7. Consequently, a display 8 enters in a display state to generate a warning. |
