Title:
風力発電装置及び風力発電装置における無線通信方法
Document Type and Number:
Japanese Patent JP6546803
Kind Code:
B2
Abstract:
Electric wave interference between a plurality of wireless communications between sensor nodes and a sink node is reduced. A wind power generation apparatus has a nacelle 108 having a first antenna with a first radiation pattern, and a sink node 104 including a first transmitting/receiving unit 1041 transmitting a beacon via the first antenna and receiving first sensor data and second sensor data, a first blade 101 having a first sensor node including a second transmitting/receiving unit transmitting the first sensor data via a second antenna in response to reception of the beacon via the second antenna and rotated by a rotor connected to the nacelle, and a second blade 102 having a second sensor node including a third transmitting/receiving unit transmitting the second sensor data via a third antenna in response to reception of the beacon via the third antenna and rotated by the rotor 110, in which one of the second antenna and the third antenna is located within the range of a predetermined angle less than a half-power angle of the first radiation pattern, and the other is located outside the range of the half-power angle.
Inventors:
Tatsuji Noma
Komiya Taimaru
Masaki Noda
Takatoshi Josugi
Komiya Taimaru
Masaki Noda
Takatoshi Josugi
Application Number:
JP2015144927A
Publication Date:
July 17, 2019
Filing Date:
July 22, 2015
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F03D17/00; F03D7/04; F03D80/00
Domestic Patent References:
| JP2011127605A | ||||
| JP2010522848A | ||||
| JP2001349775A |
Foreign References:
| US20070159346 | ||||
| CN1910365A |
Attorney, Agent or Firm:
Aoritsu patent business corporation