Door improvements and data mining via accelerometer and magnetometer electronic component

Patent metadata

Field	Value
Publication number	US-9982459-B2
Application number	US-201615162742-A
Country	US
Kind code	B2
Filing date	May 24, 2016
Priority date	Jun 1, 2015
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

An electronic door lock including a magnetometer, an accelerometer, and a processor. The processor is configured to determine a status of a door with respect to a door frame using data provided by the accelerometer and magnetometer which collectively generate acceleration data, velocity data and positional data of the door. The processor provides data to a user interface or an alert device indicating one or more of: door open angle, prep-less door position, an acceleration alert, a door position alert, door sag, door frame rub, and triangulation of an intruder.

First claim

The invention claimed is:

1. A method for determining a status of a door with respect to a door frame, comprising:
providing an accelerometer in a door lock;
providing a magnetometer in the door lock;
analyzing accelerometer data of the door detected by the accelerometer, wherein the accelerometer data is generated by the accelerometer detecting movement associated with the door and the door frame;
analyzing magnetometer data of the door generated by the magnetometer, wherein the magnetometer data is generated by the magnetometer detecting a magnetic field associated with the door and the door frame;
determining whether the accelerometer data and the magnetometer data satisfies a plurality of operating state thresholds, wherein each of the operating state thresholds indicates that operation of the door is operating in an acceptable operating state when the accelerometer data and the magnetometer data satisfies the plurality of operating state thresholds and that operation of the door is operating in an unacceptable operating state when accelerometer data and/or the magnetometer data fails to satisfy at least one of the operating state thresholds;
providing a status of the door with respect to the door frame when the door is operating in the acceptable operating state; and
providing an alert indicating that an unacceptable condition associated with operation of the door exists when the door is operating in the unacceptable operating state.

2. The method of claim 1 further comprising:
determining a velocity of the door moving from one of an open position and a closed position to the other of the open position and the closed position using the accelerometer data.

3. The method of claim 2 further comprising:
comparing the determined velocity to a predetermined value; and
providing an alert if the determined velocity is different than the predetermined value.

4. The method of claim 3 wherein the providing an alert includes providing an alert if the determined velocity is greater than the predetermined value.

5. The method of claim 1 further comprising:
determining a change in acceleration of the door using the accelerometer data when the door moves between one of an open position and a closed position to the other of the open position and the closed position.

6. The method of claim 5 further comprising:
comparing the change in acceleration data to a predetermined change in acceleration value; and
providing an alert if the determined change in acceleration data is different than the predetermined change in acceleration value.

7. The method of claim 2 further comprising:
determining a magnetic field value with the magnetometer at one of a door closed position and a door open position; and
providing an alert if the determined velocity of the door is zero and the determined magnetic field value is different than the determined magnetic field value at the one of the door closed position and the door open position.

8. The method of claim 5 further comprising:
providing an alert if the determining a change in acceleration includes determining a change in acceleration from a positive acceleration to a negative acceleration.

9. The method of claim 5 further comprising:
providing an alert if the determining a change in acceleration includes determining whether the change in acceleration is greater than a predetermined acceleration value.

10. The method of claim 3 wherein the providing an alert further comprises providing an alert if the determined velocity is zero and the magnetometer data is different than a magnetometer data value at the closed position.

11. An electronic door lock for a door, the lock comprising:
an accelerometer configured to:
detect movement associated with the door and the door frame, and
generate accelerometer of the door based on the movement associated with the door and the door frame;

a magnetometer configured to:
detect a magnetic field associated with the door and the door frame, and
generate magnetometer data of the door based on the magnetic field associated with the door and the door frame; and

a processor is configured to execute stored program instructions to:
determine whether the accelerometer data and the magnetometer data satisfies a plurality of operating state thresholds, wherein each of the operating state thresholds indicates that operation of the door is operating in an acceptable operating state when the accelerometer data and the magnetometer data satisfies the plurality of operating state thresholds and that operation of the door is operating in an unacceptable operating state when accelerometer data and/or the magnetometer data fails to satisfy at least one of the operating state thresholds, and
provide a status of the door with respect to the door frame when the door is operating in the acceptable operating state, and
provide an alert indicating that an unacceptable condition associated with operation of the door exists when the door is operating in the unacceptable operating state.

12. The electronic door lock of claim 11 wherein the processor is further configured to execute stored program instructions to:
determine a velocity of the door moving from one of an open position and a closed position to the other of the open position and the closed position using the accelerometer data.

13. The electronic door lock of claim 12 wherein the processor is further configured to execute stored program instructions to:
compare the determined velocity to a predetermined value; and
provide an alert if the determined velocity is different than the predetermined value.

14. The electronic door lock of claim 13 further comprising an alert device operatively connected to the processor, and wherein the controller is further configured to execute stored program instructions to:
provide an alert signal to the alert device if the determined velocity is greater than the predetermined value.

15. The electronic door lock of claim 14 further comprising a door lock, wherein the door lock includes the processor, the accelerometer, the magnetometer in a door lock housing.

16. The electronic door lock of claim 11 wherein the controller is further configured to execute stored program instructions to:
determine a change in acceleration of the door using the accelerometer data when moving between one of an open position to a closed position to the other of the open position to the closed position.

17. The electronic door lock of claim 16 wherein the processor is further configured to execute stored program instructions to:
compare the change in acceleration data to a predetermined change in acceleration value; and
provide an alert if the determined change in acceleration data is different than the predetermined change in acceleration value.

18. The electronic door lock of claim 12 further comprising an alert device operatively connected to the processor, and wherein the processor is further configured to execute stored program instructions to:
determine a magnetic field value with the magnetometer at one of a door closed position and a door open position; and
provide an alert signal to the alert device if the determined velocity of the door is zero and the determined magnetic field value is different than the determined magnetic field value at the one of the door closed position and the door open position.

19. The electronic door lock of claim 18 further comprising a door lock, wherein the door lock includes the processor, the accelerometer, the magnetometer

Assignees

• Schlage Lock Co Llc

Inventors

• Telljohann Brian A
• Rayburn Ryne
• Dexter Matthew R
• Ross Gregory
• Evenson John

Classifications

• E05B2047/0068

  Door closed · CPC title

• E05B2047/0094

  Mechanical aspects of remotely controlled locks · CPC title

• G08B13/08

  by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind · CPC title

• E05B41/00 Primary

  Locks with visible indication as to whether the lock is locked or unlocked {(indicator lights E05B17/10)} · CPC title

• E05B2045/063

  by movement of the wing · CPC title