Hitachi, Ltd.

Naoki Mitsuyoshi

Katsumi Kawano

Ryota Yamasaki

Hiroshi Onuki

Nobuhisa Kobayashi

Nobuyoshi Ando

An appliance located states accumulating method includes the steps of, receiving state information indicating operating state changes of the appliances constituted of a distributed computer through a network, calculating an occurrence time difference from the state changes occurred in the appliances in accordance with occurrence time information indicative of occurrence times of the state changes included in the state information, and calculating the positional relation of the positions, where the appliances occur the state changes, from the calculated occurrence time difference, thereby accumulating the positional relation of the installed appliances.

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Hitachinaka, Japan

Naoki Mitsuyoshi