LARGE GAP DOOR/WINDOW, HIGH SECURITY, INTRUSION DETECTORS USING MAGNETOMETERS

A door, or window detector incorporates a magnet and a magnetometer. Dual loop processing can be provided for real-time signals from the magnetometer, as the magnet moves relative to it, to determine when at least one of small gap or large gap indicating alarms should be issued. Security can be subs...

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Bibliographic Details
Main Authors MERRITT, DAVE EUGENE, BUCKLEY, MARK C
Format Patent
LanguageEnglish
French
Published 22.10.2019
Subjects
ALARM SYSTEMS
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
ORDER TELEGRAPHS
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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Summary:A door, or window detector incorporates a magnet and a magnetometer. Dual loop processing can be provided for real-time signals from the magnetometer, as the magnet moves relative to it, to determine when at least one of small gap or large gap indicating alarms should be issued. Security can be substantially increased by randomizing the orientation of the magnet. Un détecteur destiné à une porte ou une fenêtre incorpore un aimant et un magnétomètre. Un traitement de double boucle peut être fourni pour les signaux en temps réel du magnétomètre, lorsque laimant est en mouvement par rapport au magnétomètre, pour déterminer le moment où un faible espacement ou un grand espacement devrait indiquer le signalement des alertes. La sécurité peut être substantiellement augmentée en rendant aléatoire lorientation de laimant.
Bibliography:Application Number: CA20132810219