| 摘要 |
PURPOSE:To enable the display of numerous maintenance items by processing as specified the distance data and time data detected and memoried based on the data of from the data input and output means having a real time clock function and by displaying the results. CONSTITUTION:On each maintenance item a reset switch 32 and the input output means which are a car speed sensor 33, realtime clock 34 and stand by memory 35, are connected to a microcomputer 31 and the results processed as specified are displayed by a display part 36 consisting of plural LED provided on each maintenance item. In this case an electric power source is made available to the clock 34 and memory 35 from a supplementary battery 37 on cutting-off of automobile battery 38 and the sensor 33 is connected to the micon 31 via a squeese- in signal input terminal INT. The maintenance items necessary for execution on each lapse of a certain period as well can be thus displayed. |
