| 摘要 |
PROBLEM TO BE SOLVED: To suppress a construction cost by simplifying the structure of a docking station and to charge the power supply voltage of a handy terminal on the basis of power supply from the docking station. SOLUTION: A monitor 305 for outputting video signals generated by being imaged by the camera of an entrance slave unit 1 is provided in a handy terminal 3 connected to the station connector 200 of the docking station 2 freely attachably and detachably by a terminal connector 300. Also, the power supply voltage to the handy terminal connector-connected to the docking station is charged to a terminal power supply part 307 on the basis of the power supply from a station power supply part 205. Further, when the handy terminal is connector-connected to the docking station, power supply from the station power supply part to the terminal power supply part and signal transmission of outputting the video signals to the monitor of the handy terminal by a cable are performed by the control of a station CPU 209. COPYRIGHT: (C)2010,JPO&INPIT
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