| 摘要 |
PURPOSE:To automatically scan and display meteorological conditions changing continuously by controlling the conduction and interruption of outputs of a plurality of sensors for detecting meteorological conditions to display them sequentially. CONSTITUTION:When an ignition switch 2 is turned to a position ACC, this state is memorized into a control circuit 705 of a display select section 7 through a power source section 3 to enter an automatic scan mode. Then, three state buffers 703, 702, 701 and 704 are turned sequentially to a high level to be scanned and outputs of humidity, temperature, inside temperature and pressure sensors 403, 402, 401 and 404 for detecting meteorological conditions from the interruption to conduction to display sensor outputs, units and the like sequentially on a display 8 by switching. In response to the operation of a selection switch 6, the memory contents of a circuit 705 varies to enables an alternate display of the sensors 401 and 402 or display for the sensors 403 and 404 only. With such an arrangement, meteorological conditions changing continuously can be automatically scanned and displayed. |
