| 摘要 |
PROBLEM TO BE SOLVED: To realize a household electrical appliance network system, that can check or remotely control a household electrical appliances, and to realize its operating method. SOLUTION: At least one house electric appliance has sub controllers 17a, 17b, 17c in the inside and is placed in the inside of a house. A control server 15 has a main controller 15a in the inside and is placed in the inside of the house and makes communication with at least one household electrical appliance product by using a communication protocol capable of two-way data communication and a communication medium. Then at least one external communication unit 11, 12, 13 is provided with a controller, is placed at the outside of the house and makes communication with a server by using a communication protocol, capable of two-way data communication and a communication medium.
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