| 摘要 |
PROBLEM TO BE SOLVED: To evaluate use of electric appliances by each user, and to provide the result to each user.SOLUTION: In an information processing system comprising portable terminal devices and electric appliances, a server receives operation information which associates an operation content transmitted from a portable terminal device with a user identifier and power consumption information transmitted from the electric appliances, and stores the received information. The server evaluates the use of the electric appliances by each user by use of the stored information, and transmits the result to the portable terminal device of each user. The portable terminal device displays the received evaluation result. |
