Title:
WIRELESS DEVICE FOR SHUTTER
Document Type and Number:
Japanese Patent JP2016011532
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless device for a shutter capable of reducing a frequency of maintenance to a power source for a transmission part.SOLUTION: A wireless device 100 for a shutter for preventing nipping of an obstacle, is provided with a detection part 10 for detecting the obstacle, a transmission part 20 provided in the vicinity of the detection part 10 and having a transmission antenna 21 and a receiving part 30 having a receiving antenna 31. The receiving part 30 is provided with receiving position moving means 33 for moving a position of the receiving antenna 31 and a control part 32. The receiving position moving means 33 is controlled for moving a position of the receiving antenna 31 so that a signal level of a synthetic wave synthesized by a direct wave that is a signal wave of directly reaching the receiving antenna 31 from the transmission antenna 21 and a reflection wave that is a signal wave of reaching the receiving antenna 31 after being reflected by a predetermined reflection surface, becomes a predetermined size or more. The transmission part 20 wirelessly transmits the signal wave to the receiving part 30 for the first time when the detection part 10 detects the obstacle.
Inventors:
TAKAHASHI HIROSHI
SUGIYAMA KOICHI
SUGIYAMA KOICHI
Application Number:
JP2014134042A
Publication Date:
January 21, 2016
Filing Date:
June 30, 2014
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD
International Classes:
E06B9/84
Attorney, Agent or Firm:
野▲崎▼ 照夫
Masahiro Matsushita
Masahiro Matsushita