Title:
CRIME PREVENTION ALARM DEVICE
Document Type and Number:
Japanese Patent JP2019061305
Kind Code:
A
Abstract:
To provide a crime prevention alarm device that can automatically determine the opening/closing state of a fitting without a built-in battery of a slave unit mounted on the fitting.SOLUTION: A crime prevention alarm device 1 of this embodiment comprises: an RF tag 10 mounted on the open/close section of a window 2; and an alarm device 11 for a radio communication with the RF tag 10. The alarm device 11 includes: a reader-writer antenna 112 to be used for the radio communication with the RF tag 10; a reader-writer unit 111 for sending a carrier wave to supply an electric power to the RF tag 10, and for performing processing to obtain the reception state of the radio wave sent by the RF tag 10; and an alarm control unit 110 for performing processing to determine the opening/closing state of the window 2 on which the RF tag 10 sending the radio wave is mounted by obtaining the reception state of the radio wave sent by the RF tag 10 from the reader-writer unit 111.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI HIROKO
Application Number:
JP2017183046A
Publication Date:
April 18, 2019
Filing Date:
September 22, 2017
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G08B25/04; G08B13/08; G08B25/10
Domestic Patent References:
| JP2010059604A | 2010-03-18 | |||
| JP2016149119A | 2016-08-18 | |||
| JP2011048750A | 2011-03-10 | |||
| JP5438855B1 | 2014-03-12 | |||
| JP2006031409A | 2006-02-02 | |||
| JP2006139680A | 2006-06-01 | |||
| JP2009080133A | 2009-04-16 |
Attorney, Agent or Firm:
Hiromi Fujimasu
Keiko Fukamachi
Hideo Ito
Naoki Goto
Yusuke Ito
Hideyuki Tateishi
Keiko Fukamachi
Hideo Ito
Naoki Goto
Yusuke Ito
Hideyuki Tateishi