| 摘要 |
A wireless call system enables even a bedridden person to easily answer a visitor. The wireless call system has an outdoor unit ( 3 ) installed on the outside of an entrance of a structure having a door ( 13 ) lockable with an electronic lock ( 15 ), for calling a resident in the structure, and an indoor unit ( 9 ) connected to the outdoor unit ( 3 ) by radio, for informing the resident of the presence of a visitor upon receiving a signal from the outdoor unit ( 3 ) and allowing the resident to answer the visitor through the outdoor unit ( 3 ). The outdoor unit ( 3 ) has an image pickup unit ( 23 ) for picking up an image of the visitor making a call with the outdoor unit ( 3 ). The indoor unit ( 9 ) is portable and has a display ( 53 ) for displaying the visitor's image picked up by the image pickup unit ( 23 ) and control buttons ( 55 ) for unlocking the electronic lock ( 15 ) if necessary. The resident can carry the indoor unit ( 9 ) to an optional location, and at the location, check the visitor displayed on the display ( 53 ) and unlock the electronic lock ( 15 ) through the control buttons ( 55 ) after checking the visitor.
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