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Patent Searching and Data


Title:
MEMS BASED GARAGE DOOR SENSOR
Document Type and Number:
WIPO Patent Application WO2005111960
Kind Code:
A3
Abstract:
A MEMS based overhead garage door intrusion sensor for a security system, such as a residential/home security system, for detecting an intrusion through an overhead garage door. In one embodiment, a MEMS sensor accelerometer is mounted with a sensitive axis of the MEMS device, along which the MEMS device measures acceleration/gravity, pointing vertically downward towards the earth when the overhead garage door is closed, such that the MEMS sensor measures a 1g acceleration/gravity force, and when the overhead garage door is open, the sensitive axis of the MEMS device points horizontally with respect to the earth, such that the MEMS sensor measures a 0 g acceleration/gravity force, such that the output of the MEMS sensor, indicating either a 1 g or a 0 g measured acceleration/gravity force, indicates whether the overhead garage door is respectively closed or open. Alternatively, the MEMS sensor can be a MEMS switch. An ASIC or microcontroller can monitor the output of the MEMS sensor, and one embodiment employs wireless RF technology.

Inventors:
ESKILDSEN KENNETH G (US)
Application Number:
PCT/US2005/016504
Publication Date:
May 04, 2006
Filing Date:
May 11, 2005
Export Citation:
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Assignee:
HONEYWELL INT INC (US)
ESKILDSEN KENNETH G (US)
International Classes:
G08B13/08; (IPC1-7): G08B13/08
Foreign References:
US6940405B22005-09-06
US6346889B12002-02-12
US6148399A2000-11-14
Other References:
See also references of EP 1754206A4
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