Centralized control system for home electric appliances

A centralized control system for home electric appliances comprising:

• a controller for implementing centralized simultaneous control and monitoring of the operation of a plurality of electric appliances;
• and
• a plurality of terminal units linked to said controller through a communication medium for directly controlling operation of said electric appliances;
• wherein said controller includes setting means for setting a designation of electric appliances to be simultaneously controlled and for setting control plans for said simultaneously controlled electric appliances, first memory means for storing set values set by said setting means, command means for entering a simultaneous control command, and first transmission means for sending a signal including said set values and/or said simultaneous control command to terminal units corresponding to said simultaneously controlled electric appliances;
• and
• wherein each terminal unit includes first reception means for receiving said signal from said controller and for analyzing said signal, second memory means for storing set values if said signal represents set values, and for storing a control plan which controls operation of a simultaneously controlled electric appliance, and control means for referring to said second memory means to obtain a control plan corresponding to said simultaneous control command and for controlling the operation of said simultaneously controlled electric appliance in accordance with said control plan if said signal represents a simultaneous control command.