Telephone accessible appliance control system

Details Telephone accessible appliance control system Telephone accessible appliance control system

H - Electricity

04

M

379/5

H04M 11/06 (2006.01) H04M 11/00 (2006.01)

Patent

CA 1178729

TELEPHONE ACCESSIBLE APPLIANCE CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE A control system is disclosed for switching on or off appliances or other electrical devices at predetermined or preselected times. The timing or sequencing of switching on or switching off any appliances can be set or changed as desired by telephoning the system from a remote telephone and providing appropriate encoded instructions through the telephone lines. The system includes a central clock driven controller and one or more remote addressable switching means which communicate with the central controller through con- ventional power lines. The central controller includes a power line interface for generating and impressing control signals on the power lines, a telephone interface and tone decoder for receiving incoming telephone instructions, and a microprocessor and memory for processing incoming instruct- ions and operating the power line interface. Each remote addressable switching means includes a power line interface for receiving incoming signals, a power switch for switching on or off an appliance, and control logic for selecting appropriate incoming signals and operating the power switch.

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