Title:
COMMUNICATION NODE, COMMUNICATION SYSTEM AND UPDATING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/008075
Kind Code:
A1
Abstract:
A plurality of communication nodes (101) are dispersedly installed in a region A to be sensed, and perform an intermittent operation of each getting into a sleep state after transmitting sensing data at the installation site thereof to a collection device (102) by multihop communication within a predetermined operating time. At the time of updating of software of another child node (101a), a gateway node (101b) among the communication nodes (101) that becomes a gateway to the collection device (102) transmits, within one operating time of the child node (101a), an update file for updating the software to the child node (101a), and transmits, within one operating time of each of a plurality of child nodes (101a) in the communication path of the multihop communication, a transfer determination value (D) and number (H) of hops for each of the child nodes (101a) to determine whether the transmission of the update file is allowed or not.
Inventors:
KURIHARA KOJI (JP)
YAMASHITA KOICHIRO (JP)
SUZUKI TAKAHISA (JP)
YAMASHITA KOICHIRO (JP)
SUZUKI TAKAHISA (JP)
Application Number:
PCT/JP2016/069826
Publication Date:
January 11, 2018
Filing Date:
July 04, 2016
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04W8/24; H04W52/02
Foreign References:
| JP2015176234A | 2015-10-05 | |||
| JP2015082792A | 2015-04-27 | |||
| JP2009159619A | 2009-07-16 |
Attorney, Agent or Firm:
SAKAI, Akinori (JP)
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