| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems in the conventional systems that a desired household electrical appliance cannot be controlled remotely by simple operation from the outdoors at arbitrary time and operation requiring an immediate response cannot be performed, since it takes a long time for transmitting electronic mail concerning a method for controlling the electrical appliance, while using the electronic mail. SOLUTION: The call of a connection request from a portable terminal 3 to the electrical appliance (VTR 12, for example), to be controlled remotely is made to be incoming via a public line 2 to an incoming controller 23, inside a gateway device 20 and connected to the VTR 12 by a network connection by means of PPP by this incoming controller 23. Thus, the connection by means of the portable terminal 3 does not go through an address translator 22, and it appears as though a new device has been connected to an indoor network 10. The data of the contents of operation, which is performed by a user while using a WWW browser function 3b of the portable terminal 3, are inputted through the public line 2 and the gateway device 20 to a WWW server function 12a of the VTR 12 to be controlled remotely. |
