Door position monitor

作者: Allan Harry Outzs

DOI:

关键词: Electrical engineeringMechanism (engineering)Embedded systemPosition (vector)Computer scienceBattery (vacuum tube)

摘要: A door position monitoring mechanism mounted in the edge of a that senses whether is opened or closed by sensing absence presence magnetic field magnet frame. Information regarding then transmitted to battery operated wireless access control system on same through wires extending from mechanism.

参考文章(12)
Steven J. Slaughter, Concealed safety lock ,(1988)
Thomas R. Lasier, William L. Downey, Door closer position monitor ,(1988)
Jeffrey Ollis, John Coogan, Yucheng Jin, Daniel Quigley, Security system employing a hall effect sensor ,(2005)
Kevin G Piel, Thomas S Babich, Michael Garavuso, Security device with adjustable magnet location ,(2005)
Gerard G. Keogh, Visual burglar alarm ,(1976)
Jr. John T. Jackson, Monitored security switch assembly ,(1997)