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Patent Searching and Data


Title:
WINDOW OPENING AND CLOSING DETECTING DEVICE
Document Type and Number:
Japanese Patent JP2010250576
Kind Code:
A
Abstract:

To obtain a magnetic force level of adequate resolution by widening an allowable installation range of a magnet to be separately arranged to a device built-in magnetic sensing element.

A first window opening and closing detecting Hall sensor 46-1 and a second window opening and closing detecting Hall sensor 46-2 are arranged in a window opening and closing detecting device with respect to the magnet arranged at another window side which performs relative movement to a window where the device is installed. A sensor selection part compares the magnetic force levels detected by first and second window opening and closing detecting Hall sensors 46-1 and 46-2, and selects the Hall sensor most effective in opening and closing of monitoring. A window opening and closing monitoring part determines opening or closing of the window by comparing the magnetic force level detected by the selected Hall sensor with a predetermined determination threshold and wirelessly transmits a determination result.


Inventors:
SHIMA YASUSHI
NOGUCHI KOHEI
Application Number:
JP2009000099638
Publication Date:
November 04, 2010
Filing Date:
April 16, 2009
Export Citation:
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Assignee:
HOCHIKI CO
CIRCUIT DESIGN KK
International Classes:
G08B13/08; E05B45/14; H01H36/00
Domestic Patent References:
JP2003223683A2003-08-08
JP2002115429A2002-04-19
Attorney, Agent or Firm:
竹内 進