Wireless access control system including lock assembly generated magnetic field based unlocking and related methods

• US 9,501,883 B2
• Filed: 12/16/2015
• Issued: 11/22/2016
• Est. Priority Date: 03/17/2011
• Status: Active Grant

• Current Assignee: Unikey Technologies Incorporated
• Original Assignee: Unikey Technologies Incorporated
• Inventors: Handville, Justin, Dumas, Philip C.
• Primary Examiner(s): McNally, Kerri
• Assistant Examiner(s): Dorsey, Renee
• Application Number:
  US14/971,264
• Publication Number:
  US 20160104334A1
• Time in Patent Office: 342 Days
• US Class Current: 1/1
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2209/04 Access control involving a hierarchy in access rights
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: G07C 9/00571 operated by interacting with a central unit
• CPC Class Codes: G07C 9/28 the pass enabling tracking or indicating presence
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: Y10T 70/5155 Door

Abstract

A wireless access control system may include a remote access wireless device that includes a magnetic sensor and a remote controller coupled to remote wireless communications circuitry and the magnetic sensor. The system may also include a lock assembly for a door that includes a magnetic field generator and a lock controller coupled to a lock, lock wireless communications circuitry, and the magnetic field generator. The lock controller may communicate a magnetic field characteristic with the remote wireless communications circuitry, and cooperate with the magnetic field generator to generate a magnetic field based upon the magnetic field characteristic. The remote controller may cooperate with the magnetic sensor to sense the magnetic field, compare the sensed magnetic field to the magnetic field characteristic, and communicate to enable lock unlocking when the sensed magnetic field has a sensed magnetic field characteristic that matches the magnetic field characteristic.

Claims

1. A wireless access control system comprising:

a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by said remote housing, a magnetic sensor carried by said remote housing, and a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor;

a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, a touch sensor, and a lock controller coupled to said lock, said lock wireless communications circuitry, said magnetic field generator, and said touch sensor;

said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with said remote access wireless device wireless communications circuitry based upon said touch sensor, and

cooperate with said magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic;

said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic, and

communicate, via said remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

2. The wireless access control system of claim 1 wherein said lock controller is configured to communicate with said remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

3. The wireless access control system of claim 1 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

4. The wireless access control system of claim 1 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

5. The wireless access control system of claim 1 wherein said lock controller is configured to encrypt the at least one magnetic field characteristic.

6. The wireless access control system of claim 1 wherein said magnetic sensor comprises a Hall effect sensor.

7. The wireless access control system of claim 1 wherein said magnetic sensor comprises a magnetometer.

8. The wireless access control system of claim 1 wherein the at least one magnetic field characteristic comprises a plurality of magnetic field characteristics.

9. A lock assembly to be mounted to a door for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, the lock assembly comprising:

a lock;

lock wireless communications circuitry;

a magnetic field generator;

a touch sensor; and

a lock controller coupled to said lock, said lock wireless communications circuitry, said magnetic field generator, and said touch sensor, said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry based upon said touch sensor, and

cooperate with said magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic, the magnetic field, upon being sensed by the magnetic sensor, causing the remote access wireless device controller to compare the sensed magnetic field to the at least one magnetic field characteristic, and communicate, via the remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

10. The lock assembly of claim 9 wherein said lock controller is configured to communicate with the remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

11. The lock assembly of claim 9 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

12. The lock assembly of claim 9 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

13. A remote access wireless device to be carried by a user and for a wireless access system comprising a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to the lock, the lock wireless communications circuitry, and the magnetic field generator, the lock controller configured to communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device, the at least one magnetic field characteristic comprises at least one of a peak time, charge time, discharge time, charge resistance, and discharge resistance, and cooperate with the magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic, the remote access wireless device comprising:

a remote housing;

remote access wireless device wireless communications circuitry carried by said remote housing;

a magnetic sensor carried by said remote housing; and

a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor, said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic, and

communicate, via said remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

14. The remote access wireless device of claim 13 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

15. The remote access wireless device of claim 13 wherein said magnetic sensor comprises a Hall effect sensor.

16. The remote access wireless device of claim 13 wherein said magnetic sensor comprises a magnetometer.

17. A wireless access control method for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, and a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to the lock, the lock wireless communications circuitry, and the magnetic field generator, the method comprising:

using the lock controller to

communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry, the at least one magnetic field characteristic comprises at least one of a peak time, charge time, discharge time, charge resistance, and discharge resistance, and

cooperate with the magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic; and

using the remote access wireless device controller to

cooperate with the magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic, and

communicate, via the remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of the lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

18. The method of claim 17 wherein using the lock controller comprises using the lock controller to communicate with the remote access wireless device communications circuitry for authentication of the remote access wireless device and enable unlocking of the lock based upon the authentication.

19. The method of claim 17 wherein the lock controller changes the at least one magnetic field characteristic over time.

20. A wireless access control system comprising:

a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by said remote housing, a magnetic sensor carried by said remote housing, and a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor; and

a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to said lock, said lock wireless communications circuitry, and said magnetic field generator;

said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with said remote access wireless device wireless communications circuitry, the at least one magnetic field characteristic comprises at least one of a peak time, charge time, discharge time, charge resistance, and discharge resistance, and

cooperate with said magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic;

said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic, and

communicate, via said remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

21. The wireless access control system of claim 20 wherein said lock controller is configured to communicate with said remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

22. The wireless access control system of claim 20 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

23. The wireless access control system of claim 20 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

24. The wireless access control system of claim 20 wherein said lock controller is configured to encrypt the at least one magnetic field characteristic.

25. The wireless access control system of claim 20 wherein said magnetic sensor comprises a Hall effect sensor.

26. The wireless access control system of claim 20 wherein said magnetic sensor comprises a magnetometer.

27. A wireless access control system comprising:

a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by said remote housing, a magnetic sensor carried by said remote housing, and a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor; and

a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to said lock, said lock wireless communications circuitry, and said magnetic field generator;

said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with said remote access wireless device wireless communications circuitry, and

cooperate with said magnetic field generator to generate at least one magnetic pulse based upon the at least one magnetic field characteristic;

said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the at least one magnetic pulse,

compare the sensed at least one magnetic pulse to the at least one magnetic field characteristic, and

communicate, via said remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed at least one magnetic pulse has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

28. The wireless access control system of claim 27 wherein said lock controller is configured to communicate with said remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

29. The wireless access control system of claim 27 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

30. The wireless access control system of claim 27 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

31. The wireless access control system of claim 27 wherein said lock controller is configured to encrypt the at least one magnetic field characteristic.

32. The wireless access control system of claim 27 wherein said magnetic sensor comprises a Hall effect sensor.

33. The wireless access control system of claim 27 wherein said magnetic sensor comprises a magnetometer.

34. A wireless access control system comprising:

a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by said remote housing, a magnetic sensor carried by said remote housing, and a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor; and

a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to said lock, said lock wireless communications circuitry, and said magnetic field generator;

said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with said remote access wireless device wireless communications circuitry, and

cooperate with said magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic;

said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic based upon a fast Fourier transform, and

communicate, via said remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

35. The wireless access control system of claim 34 wherein said lock controller is configured to communicate with said remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

36. The wireless access control system of claim 34 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

37. The wireless access control system of claim 34 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

38. The wireless access control system of claim 34 wherein said lock controller is configured to encrypt the at least one magnetic field characteristic.

39. The wireless access control system of claim 34 wherein said magnetic sensor comprises a Hall effect sensor.

40. The wireless access control system of claim 34 wherein said magnetic sensor comprises a magnetometer.

41. The wireless access control system of claim 34 wherein the at least one magnetic field characteristic comprises a plurality of magnetic field characteristics.

42. A lock assembly to be mounted to a door for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, the lock assembly comprising:

a lock;

lock wireless communications circuitry;

a magnetic field generator; and

a lock controller coupled to said lock, said lock wireless communications circuitry, and said magnetic field generator, said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry, the at least one magnetic field characteristic comprises at least one of a peak time, charge time, discharge time, charge resistance, and discharge resistance, and

cooperate with said magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic, the magnetic field, upon being sensed by the magnetic sensor, causing the remote access wireless device controller to compare the sensed magnetic field to the at least one magnetic field characteristic, and communicate, via the remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

43. The lock assembly of claim 42 wherein said lock controller is configured to communicate with the remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

44. The lock assembly of claim 42 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

45. The lock assembly of claim 42 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

46. A lock assembly to be mounted to a door for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, the lock assembly comprising:

a lock;

lock wireless communications circuitry;

a magnetic field generator; and

a lock controller coupled to said lock, said lock wireless communications circuitry, and said magnetic field generator, said lock controller configured to

communicate, via said lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry, and

cooperate with said magnetic field generator to generate at least one magnetic pulse based upon the at least one magnetic field characteristic, the at least one magnetic pulse, upon being sensed by the magnetic sensor, causing the remote access wireless device controller to compare the sensed at least one magnetic pulse to the at least one magnetic field characteristic, and communicate, via the remote access wireless device wireless communications circuitry and said lock wireless communications circuitry to enable unlocking of said lock when the sensed at least one magnetic pulse has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

47. The lock assembly of claim 46 wherein said lock controller is configured to communicate with the remote access wireless device communications circuitry for authentication of said remote access wireless device;

and wherein said lock controller is configured to enable unlocking of said lock based upon the authentication.

48. The lock assembly of claim 46 wherein said lock controller is configured to change the at least one magnetic field characteristic over time.

49. The lock assembly of claim 46 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

50. A remote access wireless device to be carried by a user and for a wireless access system comprising a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to the lock, the lock wireless communications circuitry, and the magnetic field generator, the lock controller configured to communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device, and cooperate with the magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic, the remote access wireless device comprising:

a remote housing;

remote access wireless device wireless communications circuitry carried by said remote housing;

a magnetic sensor carried by said remote housing; and

a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor, said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic based upon a fast Fourier transform, and

communicate, via said remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of said lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

51. A remote access wireless device to be carried by a user and for a wireless access system comprising a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to the lock, the lock wireless communications circuitry, and the magnetic field generator, the lock controller configured to communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device, and cooperate with the magnetic field generator to generate at least one magnetic pulse based upon the at least one magnetic field characteristic, the remote access wireless device comprising:

a remote housing;

remote access wireless device wireless communications circuitry carried by said remote housing;

a magnetic sensor carried by said remote housing; and

a remote access wireless device controller coupled to said remote access wireless device wireless communications circuitry and said magnetic sensor, said remote access wireless device controller configured to

cooperate with said magnetic sensor to sense the at least one magnetic pulse,

compare the sensed at least one magnetic pulse to the at least one magnetic field characteristic, and

communicate, via said remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of said lock when the sensed at least one magnetic pulse has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

52. The remote access wireless device of claim 51 wherein the at least one magnetic field characteristic comprises a range of time for sensing the magnetic field.

53. The remote access wireless device of claim 51 wherein said magnetic sensor comprises a Hall effect sensor.

54. The remote access wireless device of claim 51 wherein said magnetic sensor comprises a magnetometer.

55. A wireless access control method for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, and a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, and a lock controller coupled to the lock, the lock wireless communications circuitry, and the magnetic field generator, the method comprising:

using the lock controller to

communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry, and

cooperate with the magnetic field generator to generate at least one magnetic pulse based upon the at least one magnetic field characteristic; and

using the remote access wireless device controller to

cooperate with the magnetic sensor to sense the at least one magnetic pulse,

compare the sensed at least one magnetic pulse to the at least one magnetic field characteristic, and

communicate, via the remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of the lock when the sensed at least on magnetic pulse has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

56. The method of claim 55 wherein using the lock controller comprises using the lock controller to communicate with the remote access wireless device communications circuitry for authentication of the remote access wireless device and enable unlocking of the lock based upon the authentication.

57. The method of claim 55 wherein the lock controller changes the at least one magnetic field characteristic over time.

58. A wireless access control method for a wireless access control system comprising a remote access wireless device to be carried by a user and comprising a remote housing, remote access wireless device wireless communications circuitry carried by the remote housing, a magnetic sensor carried by the remote housing, and a remote access wireless device controller coupled to the remote access wireless device wireless communications circuitry and the magnetic sensor, and a lock assembly to be mounted on a door and comprising a lock, lock wireless communications circuitry, a magnetic field generator, a touch sensor, and a lock controller coupled to the lock, the lock wireless communications circuitry, the magnetic field generator, and the touch sensor, the method comprising:

using the lock controller to

communicate, via the lock wireless communications circuitry, at least one magnetic field characteristic with the remote access wireless device wireless communications circuitry based upon the touch sensor, and

cooperate with the magnetic field generator to generate a magnetic field based upon the at least one magnetic field characteristic; and

using the remote access wireless device controller to

cooperate with the magnetic sensor to sense the magnetic field,

compare the sensed magnetic field to the at least one magnetic field characteristic, and

communicate, via the remote access wireless device wireless communications circuitry and the lock wireless communications circuitry to enable unlocking of the lock when the sensed magnetic field has a sensed magnetic field characteristic that matches the at least one magnetic field characteristic.

59. The method of claim 58 wherein using the lock controller comprises using the lock controller to communicate with the remote access wireless device communications circuitry for authentication of the remote access wireless device and enable unlocking of the lock based upon the authentication.

60. The method of claim 58 wherein the lock controller changes the at least one magnetic field characteristic over time.