Sanyo Electric Co., Ltd.

Yutaka Ishii

Tsutomu Ishikura

Sigekazu Kawai

Kazuya Imamura

Katsumi Maekawa

Data is transmitted to a main control device via sensing means such as temperature sensors, each having a memory means in which the ID code is stored, and via transmitting/receiving means such as switching elements. There is a stand-by period in the operation of the main control device after the main control device issues a command to start a sensing operation until the main control device issues a command to perform a read operation. The main control device receives power through a signal line the voltage of which is kept at a high level during the stand-by period. Thus, an equipment sensing system and an equipment control device which enable reliable and quick sensing, cost reduction, smooth control, and simplified wiring are provided.

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Gumma, Japan

Yutaka Ishii