RADIO AUTOMATIC GAUGE EXAMINATION SYSTEM

Japanese Patent JP3702092

B2

PROBLEM TO BE SOLVED: To obtain a radio automatic gauge examination system where a radio device accurately discriminates only a radio call to the radio device itself in a short time without being affected by other communication or noise and reduces the consumption of a battery.
SOLUTION: A transmission-side radio device continuously transmits system discrimination information, group discrimination information, and terminal discrimination information from a system start signal continuous transmission circuit 9 through a radio transmission circuit 3, and a reception-side radio device detects a radio wave by intermittent carrier sensing operation of a radio reception circuit 2. System discrimination information and group discrimination information are extracted from this detected radio wave by a system discrimination code detection circuit 5 and a group discrimination information detection circuit 6. If terminal discrimination information cannot be detected by a terminal discrimination information detection circuit 8, a control circuit 4 stops the intermittent carrier sensing operation for a prescribed time.

Kazumitsu Atui
Mamoru Suzuki
Kiyohisa Ishikawa
Jun Fujiwara
Masahiro Yasui
Tatsuya Ichihashi
Kikuo Kawasaki
Shiro Kondo
Eiji Matsumoto
Masahiro Yamamoto
Tomonori Sato

JP9957398A

October 05, 2005

April 10, 1998

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Tokyo Gas Co., Ltd.
OSAKA GAS CO.,LTD.
Toho Gas Co., Ltd.
Fuji Electric Holdings Co., Ltd.
Matsushita Electric Industrial Co., Ltd
Toshiba Corporation

G08C15/00; G08C17/00; (IPC1-7): G08C15/00; G08C17/00

JP10198881A

Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio

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