| 摘要 |
<p>A remote on/off switching system (10) for coupling to the telephone lines (14) at a location is provided. The system includes at least one switching circuit (300) connected between a household circuit (400) typically in the form of an appliance and a household power supply (500). The switching circuits are actuable between open and closed positions upon reception of control signals to connect or disconnect the household circuits to the power supply. A telephone line interface (100) is included for detecting and answering incoming telephone calls. A microcontroller (210) communicates with the telephone line interface and allows a user to access the system upon receipt of a valid security code. Upon access of the user to the system, the user can command the microcontroller to generate control signals to actuate a specific switching circuit between its open and closed positions or to inform the user of the position of the switching circuits. When the user conditions the microcontroller to actuate a switching circuit, the microcontroller also informs the user of the off/on status of the switching circuit.</p> |
