Title:
DOOR ALARM DEVICE AND MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2010/122903
Kind Code:
A1
Abstract:
A door alarm device comprising: a potentiometer (12) which is mounted to the rotating shaft of a door (1) and generates a voltage corresponding to the rotational angle to output the voltage as an angular signal; alarm devices (15, 26) which output an alarm; and a control device (24) which calculates the angle of opening of the door on the basis of the angular signal from the potentiometer, calculates on the basis of the calculated angle the period of time until the door is closed, and, when the calculated period of time is less than a predetermined determination period of time, drives the alarm devices to cause the alarm devices to output an alarm.
Inventors:
TETSUYA, Masanari (8-8, Ginza 1-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
鐵矢 匡生 (〒61 東京都中央区銀座１丁目８番８号 鐵矢工業株式会社内 Tokyo, 〒1040061, JP)
鐵矢 匡生 (〒61 東京都中央区銀座１丁目８番８号 鐵矢工業株式会社内 Tokyo, 〒1040061, JP)
Application Number:
JP2010/056354
Publication Date:
October 28, 2010
Filing Date:
April 08, 2010
Export Citation:
Assignee:
TETSUYA KOGYO CO., LTD. (8-8 Ginza 1-chome, Chuo-ku Tokyo, 61, 〒1040061, JP)
鐵矢工業株式会社 (〒61 東京都中央区銀座１丁目８番８号 Tokyo, 〒1040061, JP)
TETSUYA, Masanari (8-8, Ginza 1-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
鐵矢工業株式会社 (〒61 東京都中央区銀座１丁目８番８号 Tokyo, 〒1040061, JP)
TETSUYA, Masanari (8-8, Ginza 1-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
International Classes:
G08B21/02; E05F7/00; E06B7/28
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (Toranomon Kotohira Tower, 2-8 Toranomon 1-chom, Minato-ku Tokyo 01, 〒1050001, JP)
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