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US 8,907,791 B2Granted
Door monitoring system
AssigneeTd IP Holdco, LLC
InventorsPatricia Yulkowski, Leon Yulkowski, Edward J. Yenni
Life of this patent
Estimating the term…
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.
Claims30
A door assembly comprising:
- a first door skin;
- a second door skin spaced apart from the first door skin;
- an energy sensor generating an energy signature signal;
- a memory storing a door component operating signature;
- a controller coupled to the energy sensor 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,
- wherein the door component operation status signal corresponds to both a latch status and a hinge status.
3 more elements
A method comprising:
- generating an energy signature signal during door operation;
- comparing the energy signature signal to a door component operating signature;
- and
- generating a door component operation status signal in response to comparing,
- wherein the door component operation status signal corresponds to both a latch status and a hinge status.
2 more elements
Dependencies are inferred from the claim text.