| 摘要 |
The invention addresses the problem of dependency of wireless control systems for electrical appliances on pre-existing control switches along with limited switching functionality. It relates to a system (1,50) for wirelessly controlling an electrical appliance (100). By providing the system with an input unit (5,25,55) comprising a user-operable command interface (9,19,49,59) and a control device (3,30) which is connectable to said electrical appliance, wherein said input unit is located remotely from said control device, and said control device is adapted to detect a light signal being reflected off said command interface, to allocate said light signal to a predetermined command and to output said command to the electrical appliance, it is possible to rely on light manipulation when being reflected, without need of connection to the electrical wiring present in a building. |
