Title:
COMMUNICATION SYSTEM AND COMMUNICATION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2005/111753
Kind Code:
A1
Abstract:
Communication equipment provided in a communication system is connected with field equipment. The communication equipment performs wireless communication with a controller which controls a plant wherein the field equipment is arranged, by following a standardized communication protocol, and relays communication between the field equipment and the controller.
Inventors:
OGAWA TOSHIKI (JP)
TOMITA TOSHIRO (JP)
HOSHI TETSUO (JP)
DEMACHI KOJI (JP)
TAKAHASHI HIROFUMI (JP)
SAITO YOJI (JP)
NOGUCHI MASANORI (JP)
TOMITA TOSHIRO (JP)
HOSHI TETSUO (JP)
DEMACHI KOJI (JP)
TAKAHASHI HIROFUMI (JP)
SAITO YOJI (JP)
NOGUCHI MASANORI (JP)
Application Number:
PCT/JP2005/008736
Publication Date:
November 24, 2005
Filing Date:
May 06, 2005
Export Citation:
Assignee:
YOKOGAWA ELECTRIC CORP (JP)
OGAWA TOSHIKI (JP)
TOMITA TOSHIRO (JP)
HOSHI TETSUO (JP)
DEMACHI KOJI (JP)
TAKAHASHI HIROFUMI (JP)
SAITO YOJI (JP)
NOGUCHI MASANORI (JP)
OGAWA TOSHIKI (JP)
TOMITA TOSHIRO (JP)
HOSHI TETSUO (JP)
DEMACHI KOJI (JP)
TAKAHASHI HIROFUMI (JP)
SAITO YOJI (JP)
NOGUCHI MASANORI (JP)
International Classes:
G05B15/02; G05B23/02; H04B7/155; H04L12/28; H04B7/26; (IPC1-7): G05B23/02; H04B7/26; H04L12/28
Domestic Patent References:
| WO2003014850A1 | 2003-02-20 |
Foreign References:
| JPH1078807A | 1998-03-24 | |||
| JP2003134261A | 2003-05-09 | |||
| JP2004013450A | 2004-01-15 | |||
| JP2002325292A | 2002-11-08 |
Attorney, Agent or Firm:
Naito, Teruo (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo, JP)
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