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Patent Searching and Data


Title:
SECURITY SYSTEM, SENSOR
Document Type and Number:
Japanese Patent JP2015148997
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a security system capable of preventing a use from failing to replace a battery, and a sensor used therefor.SOLUTION: A window sensor 1 detects an open/close state and a lock/unlock state of a window 4 using a battery 11 as a power source and transmits a detection result via a radio signal. The window sensor 1 includes: a transmission section 12; a voltage monitoring section 13; a determination section 143; and a first alarm section 17. When the output voltage from the battery 11 lowers below a first threshold value, the determination section 143 outputs a first determination result; and when the output voltage from the battery 11 lowers below a second threshold value, the determination section 143 outputs a second determination result. When the output voltage from the battery 11 lowers below the second threshold value, the first alarm section 17 outputs a preliminary alarm; when the output voltage from the battery 11 lowers below the first threshold value, the first alarm section 17 outputs a main alarm.

Inventors:
MATSUDA HIROSHI
SHIBATA KIWAMU
KAJIYAMA SATOSHI
NAKAMURA ATSUSHI
Application Number:
JP2014022405A
Publication Date:
August 20, 2015
Filing Date:
February 07, 2014
Export Citation:
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Assignee:
PANASONIC IP MAN CORP
International Classes:
G08B23/00
Attorney, Agent or Firm:
西川 惠清