Title:
MONITORING SYSTEM AND MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/230088
Kind Code:
A1
Abstract:
This monitoring system has a plurality of first processing devices (10) attached to a facility to be monitored and each having a vibration sensor, a second processing device (20) for communicating with each of the plurality of first processing devices via a cable, and a third processing device (30) for communicating wirelessly with the second processing device (20). The distance between the first processing devices (10) and the second processing device (20) is 1 m to 100 m. The distance between the second processing device (20) and the third processing device (30) is 50 m or greater. The frequency of wireless communication between the second processing device (20) and the third processing device (30) is 400 MHz to 5.3 GHz.
Inventors:
ONISHI YASUHARU (JP)
FUKUTA YASUYUKI (JP)
KUDO TAKASHI (JP)
FUKUTA YASUYUKI (JP)
KUDO TAKASHI (JP)
Application Number:
PCT/JP2019/007452
Publication Date:
December 05, 2019
Filing Date:
February 27, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01M99/00; H04Q9/00
Foreign References:
| JP2008134182A | 2008-06-12 | |||
| JP2010208850A | 2010-09-24 | |||
| JP2015045584A | 2015-03-12 | |||
| JP2017201299A | 2017-11-09 | |||
| JP2015203393A | 2015-11-16 | |||
| US20160041068A1 | 2016-02-11 | |||
| US20100238027A1 | 2010-09-23 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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