Door monitoring system
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United States of America Patent
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Jan 3, 2017
Issued Date -
N/A
app pub date -
Nov 19, 2014
filing date -
Jul 21, 2009
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Abstract
A door assembly includes a first door skin and a second door skin spaced apart from the first door skin. The assembly also includes an energy sensor generating an energy signature signal and a memory storing a door component operating signature. A controller is coupled to the accelerometer and forms a comparison of the energy signature signal to the door component operating signature and generates a door component operation status signal in response to the comparison.
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