DOOR LOCK INCLUDING SENSOR
First Claim
Patent Images
1. A door assembly comprising:
- a door panel connected to a door frame and pivotable about a pivot axis;
a door latch coupled to the door panel and operable to selectively inhibit movement of the door from a closed position to an open position;
a sensor coupled to the door latch and operable to detect acceleration of the door and output acceleration data corresponding to the acceleration of the door panel in a first direction; and
a controller coupled to the door latch and the sensor, the controller operable to analyze the acceleration data to determine the cause of the acceleration.
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Accused Products
Abstract
A door assembly includes a door panel connected to a door frame and pivotable about a pivot axis, a door latch coupled to the door panel and operable to selectively inhibit movement of the door from a closed position to an open position, and a sensor coupled to the door latch and operable to detect acceleration of the door and output acceleration data corresponding to the acceleration of the door panel in a first direction. A controller is coupled to the door latch and the sensor. The controller is operable to analyze the acceleration data to determine the cause of the acceleration.
38 Citations
20 Claims
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1. A door assembly comprising:
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a door panel connected to a door frame and pivotable about a pivot axis; a door latch coupled to the door panel and operable to selectively inhibit movement of the door from a closed position to an open position; a sensor coupled to the door latch and operable to detect acceleration of the door and output acceleration data corresponding to the acceleration of the door panel in a first direction; and a controller coupled to the door latch and the sensor, the controller operable to analyze the acceleration data to determine the cause of the acceleration. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A door assembly comprising:
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a door panel connected to a door frame and pivotable about a pivot axis; a door latch coupled to the door panel and operable to selectively inhibit movement of the door panel from a closed position to an open position; a first sensor coupled to the door latch and operable to detect a first acceleration of the door panel produced by a centripetal force; a second sensor coupled to the door latch and operable to detect a second acceleration of the door; and a controller coupled to the door latch, the first sensor, and the second sensor, the controller operable to determine if the second acceleration is a result of a normal door closure based at least partially on a measurement taken by the first sensor immediately preceding the second acceleration. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of determining the cause of a first acceleration at a door comprising:
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supporting the door for pivotal movement about a hinge axis; coupling a door latch to the door, the door latch operable to selectively inhibit movement of the door from a closed position to an open position; sensing accelerations applied to the door; sensing angular movement of the door about the hinge axis; determining the cause of the first acceleration by analyzing a magnitude of the first acceleration in combination with a magnitude of the angular movement measured immediately prior to the first acceleration. - View Dependent Claims (14, 15, 16)
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17. A door assembly comprising:
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a door panel connected to a door frame and pivotable about a pivot axis; a door latch coupled to the door panel and operable to selectively inhibit movement of the door panel from a closed position to an open position; a sensor coupled to the door latch and operable to detect rotation of the door panel about the pivot axis, and to detect an acceleration of the door panel; and a controller coupled to the door latch and the sensor, the controller operable to determine if the acceleration measured by the sensor is a result of a normal door closure based at least partially on a measurement taken by the sensor of the rotation of the door panel immediately preceding the acceleration. - View Dependent Claims (18, 19, 20)
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Specification