PURPOSE: To detect whether a crew member is on board or not, by the variation of an electrostatic capacity of a capacitor for a crew detection use consisting of a pair of electrodes and a space for containing the crew.
CONSTITUTION: The device is constituted of a microcomputer (MPU) 7 being the main constituent, an input switch circuit 8, a driving circuit 9, a power source circuit 10, a current detecting circuit 11 and a crew detecting circuit 12, etc. In this state, the MPU 7 switches a level of output ports P0, P1 and reads a switch operation of the input switch circuit from input ports R0WR7. Also, when the ports P0, P1 are set to '0', only an output of an inverter becomes '1', therefore, an FR window UP operation, namely, on/off of an UP contact can be read. On the other hand, when an output O0 becomes '0' and a relay RY 1 is energized, a contact ry1 is closed and connected to a +B power source, a current in the DOWN direction flows to an FR window ascending/descending use motor MFR and the the motor MFR is energized in reverse. Subsequently, when an output port O1 becomes '0' and a relay RY 2 is energized, a contact ry2 is closed and connected to the +B power source, a current in the UP direction flows to the motor MFR and the motor MFR is energized forward.
SATO ATSUSHI
OHASHI MASAO
