Title:
COLLECTION SYSTEM, COLLECTION DEVICE, AND POWER CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2016/098205
Kind Code:
A1
Abstract:
In the present invention, an observation system comprises a plurality of nodes, and an observation device that collects information from the nodes using multi-hop communication between the plurality of nodes. The observation device has an LQI determination unit and an output control unit. The LQI determination unit determines, using multi-hop communication, whether an LQI received from the nodes has exceeded a first threshold. If the LQI has exceeded the first threshold, the output control unit outputs, to the nodes associated with the LQI, a reduction command which changes the amount of transmission power of the multi-hop communication.
Inventors:
KURIHARA KOJI (JP)
YAMASHITA KOICHIRO (JP)
SUZUKI TAKAHISA (JP)
YAMASHITA KOICHIRO (JP)
SUZUKI TAKAHISA (JP)
Application Number:
PCT/JP2014/083466
Publication Date:
June 23, 2016
Filing Date:
December 17, 2014
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04W52/46; H04W4/38; H04W84/18
Domestic Patent References:
| WO2013118904A1 | 2013-08-15 |
Foreign References:
| JP2010232890A | 2010-10-14 | |||
| JP2011146850A | 2011-07-28 | |||
| JP2012256982A | 2012-12-27 | |||
| JP2012039521A | 2012-02-23 | |||
| JP2007142520A | 2007-06-07 | |||
| JP2014123791A | 2014-07-03 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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