| 摘要 |
PURPOSE:To recover a normal state just with a single transmission/reception when the storage contents of the load state in a control signal generator are dissicent from the actual load state, by transmitting the load state information to said signal generator when the load of a device that received the load control signal is set in a state to be controlled. CONSTITUTION:Devices 17-19 are provided with electrical appliances 21-23 and control modules 24-26 containing the ON/OFF control functions of said electrical appliances. If a control request is delivered to the appliance 21 when a control terminal 20 stores that the appliance 21 is kept off, the terminal 20 sends a control signal to a transmission communication channel 16 in order to turn on the appliance 21. Receiving this control signal, the module 24 confirms by a sensor means 33 whether the appliance 21 is off or not. If the appliance 21 is on, an arithmetic control means 34 controls a communication means 31 and sends the information signal to the terminal 20 to show that the appliance 21 is on. Then the terminal 20 corrects the ON/OFF information on the appliance 21 that is stored erroneously. |
