Multiple output magnetic sensor

A door position sensing system includes a door claw having first and second magnets mounted thereon, and a Hall sensor mounted so as to sense the magnetic fields of the first and second magnets. The first magnet is mounted in a door half-latch position, and the second magnet is mounted in a door ful...

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Bibliographische Detailangaben
Hauptverfasser:	RICKS LAMAR F, FURLONG GREG R, JOHNSON CURTIS B, LAMB WAYNE A
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES FIXED CONSTRUCTIONS HANDCUFFS KEYS LOCKS RELAYS SAFES SELECTORS WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A door position sensing system includes a door claw having first and second magnets mounted thereon, and a Hall sensor mounted so as to sense the magnetic fields of the first and second magnets. The first magnet is mounted in a door half-latch position, and the second magnet is mounted in a door full-latch position. A processor is responsive to the Hall sensor to provide outputs indicating the half-latch and full-latch positions of a door. The processor may also be arranged to indicate a door open position when neither magnet is near the sensor.