Access control system

• US 8,058,971 B2
• Filed: 06/07/2006
• Issued: 11/15/2011
• Est. Priority Date: 06/07/2006
• Status: Active Grant

• Current Assignee: UTC Fire & Security Americas Corporation, Inc. (Carrier Global Corporation)
• Original Assignee: UTC Fire & Security Americas Corporation, Inc. (Carrier Global Corporation)
• Inventors: Fale, Casey, Harkins, Michael
• Primary Examiner(s): Lee; Benjamin C
• Assistant Examiner(s): Shannon; Michael T
• Application Number:
  US11/422,775
• Publication Number:
  US 20070290797A1
• Time in Patent Office: 1,987 Days
• Field of Search: 340 52- 573
• US Class Current: 340/5.73
• CPC Class Codes: G07C 2209/08 With time considerations, e.g. temporary activation, valid time window or time limitations
• CPC Class Codes: G07C 2209/61 Signal comprising different frequencies, e.g. frequency hopping
• 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 9/21 having a variable access code
• CPC Class Codes: G07C 9/27 with central registration

Abstract

An access device for a system having at least one lock that is configured to receive instructions and to energize a lock mechanism to unlock the at least one lock and a computer is disposed at a remote location from the at least one lock and the access device. The computer is connected to a primary wireless communication path. The access device comprises at least one key configured for communicating with the computer via the primary wireless communication path and to communicate with the lock over a secondary wireless communications path and wherein the at least one key further is configured as authorized to unlock the at least one lock absent a de-authorizing instruction from the computer.

Claims

1. An access system, comprising:

at least one lock configured to receive instructions from at least one key and to energize a lock mechanism to unlock the at least one lock;

the at least one key configured for communicating over a primary wireless communication path with a computer via a first transmitter and a first antenna and to communicate with the at least one lock over a secondary wireless path via a second transmitter and a second antenna, the at least one key being authorized to unlock the at least one lock absent a de-authorizing instruction received over the primary wireless communications path from the computer and absent a determination that the at least one key has not been in contact with the computer over the primary wireless communication path during and/or lasting a predetermined period of time; and

the computer disposed at a remote location from the at least one key, the computer configured to communicate with the at least one key over the primary wireless communication path, the computer further configured to receive usage data from the at least one key, and to send de-authorization instructions to the at least one key.

2. The access system of claim 1, wherein communications between the at least one key and the at least one lock are secured by a security code scheme.

3. The access system of claim 2, wherein the security code scheme changes after a predefined time period.

4. The access system of claim 1, wherein the primary wireless communication path comprises a wireless telecommunication system, the at least one lock comprises a plurality of locks and the at least one key comprises a plurality of keys.

5. The access system of claim 4, wherein each of the plurality of keys is configured to generate and communicate, upon receipt using a unique key identifier, the usage data to the computer comprising at least one of a unique lock identifier, and a time of access for each of the plurality of locks.

6. The access system of claim 5, wherein the computer stores information comprising at least one of the unique key identifier, the unique lock identifier and an agent identifier.

7. The access system of claim 4, wherein the plurality of keys are configured to receive global positioning satellite data and to process and spool the usage data when not in contact with the primary wireless telecommunications system.

8. The access system of claim 7, wherein each of the plurality of keys is configured to generate and communicate location of the key to the computer.

9. The access system of claim 4, wherein each of the plurality of locks and each of the plurality of keys are configured to communicate therebetween at an infrared frequency.

10. The access system of claim 4, wherein each of the plurality of locks and each of the plurality of keys are configured to communicate therebetween using near field radio frequency communications.

11. The access system of claim 4, wherein each of the plurality of locks are configured to be at least partially energized and/or partially recharged by any of the plurality of keys.

12. The access system of claim 4, wherein each of the plurality of locks is located on a lock box used in real estate sales.

13. The access system of claim 1, wherein the predetermined period of time is either at a time of unlocking the at least one lock or twenty-four hours.

14. The access system of claim 1, wherein upon a determination that the at least one key has not been in contact with the computer over the primary wireless communication path during and/or lasting a predetermined period of time, the at least one key de-authorized itself.

15. A method of controlling access utilizing at least one lock configured to receive instructions, and to provide input to a lock mechanism to unlock the at least one lock, comprising:

setting at least one key as authorized to unlock the at least one lock absent a de-authorizing instruction from a computer over a primary wireless communication path;

using the at least one key to send an instruction to unlock the at least one lock;

storing authorization data concerning the at least one key on the computer located remote from the at least one key and the at least one lock;

detecting a failure of the at least one key if the at least one key is not in contact with the computer over the primary wireless communication path during and/or lasting a predetermined period of time;

de-authorizing the at least one key based on the detected failure;

storing access information concerning the at least one lock on the computer located remote from the at least one lock and the at least one key.

16. The method of claim 15, further comprising securing the communications between the at least one key and the at least one lock via a security code scheme.

17. The method of claim 16, wherein the security code scheme changes after a predefined time period.

18. The method of claim 15, wherein the primary wireless communication path comprises a wireless telecommunication system, the at least one lock comprises a plurality of locks and the at least one key comprises a plurality of keys.

19. The method of claim 18, further comprising configuring each of the plurality of keys to generate and communicate, upon receipt using a unique key identifier, usage data to the computer comprising at least one of a unique lock identifier, and time of access for each of the plurality of locks.

20. The method of claim 19, further comprising storing information comprising at least one of the unique key identifier, the unique lock identifier and an agent identifier on the computer.

21. The method of claim 18, wherein each of the plurality of keys are configured to receive global positioning satellite data and to process and spool usage data when not in contact with the wireless telecommunications system.

22. The method of claim 21, wherein each of the plurality of keys is configured to generate and communicate location of the key to the computer.

23. The method of claim 18, further comprising configuring each of the plurality of locks and each of the plurality of keys to communicate therebetween at an infrared frequency.

24. The method of claim 18, wherein each of the plurality of locks and each of the plurality of keys are configured to communicate therebetween using near field radio frequency communications.

25. The method of claim 18, further comprising configuring each of the plurality of locks to be at least partially energized or partially recharged by any of the plurality of keys.

26. The method of claim 18, wherein each of the plurality of locks is located on a lock box used in real estate sales.

27. The method of claim 15, wherein the predetermined period of time is either at a time of unlocking the at least one lock or twenty-four hours.

28. An access device for a system having at least one lock that is configured to receive instructions from at least one key and to energize a lock mechanism to unlock the at least one lock based on the received instructions, and a computer disposed at a remote location from the at least one lock, the computer being connected with a primary wireless communication path, the access device comprising:

at least one key configured to communicate with the computer via the primary wireless communication path and to communicate with the at least one lock over a secondary wireless communication path, wherein the at least one key is authorized to unlock the at least one lock absent a de-authorizing instruction from the computer and absent a determination that the at least one key has not been in contact with the computer over the primary wireless communication path during and/or lasting a predetermined period of time.

29. The device of claim 28, wherein communications between the at least one key and the at least one lock are secured by a security code scheme.

30. The device of claim 29, wherein the security code scheme changes each twenty-four hour period.

31. The device of claim 28, wherein the primary wireless communication path comprises a wireless telecommunication system, the at least one lock comprises a plurality of locks and the at least one key comprises a plurality of keys.

32. The device of claim 31, wherein each of the plurality of keys is configured to generate and communicate, upon receipt using a unique key identifier, usage data to the computer comprising at least one of a unique lock identifier, and time of access for each of the plurality of locks.

33. The device of claim 32, wherein the computer stores information comprising at least one of the unique key identifier, the unique lock identifier and an agent identifier.

34. The device of claim 32, wherein the predetermined period of time is either at a time of unlocking the at least one lock or twenty-four hours.

35. The device of claim 31, wherein the plurality of keys are configured to receive global positioning satellite data and to process and spool usage data when not in contact with the wireless telecommunications system.

36. The device of claim 35, wherein each of the plurality of keys is configured to generate and communicate location of the key to the computer.

37. The device of claim 31, wherein each of the plurality of locks and each of the plurality of keys are configured to communicate therebetween at an infrared frequency.

38. The device of claim 31, wherein each of the plurality of locks and each of the plurality of keys are configured to communicate therebetween using near field RF communications.

39. The device of claim 31, wherein each of the plurality of locks are configured to be at least partially energized and/or partially recharged by any of the plurality of keys.

40. The device of claim 31, wherein each of the plurality of locks is located on a lock box used in real estate sales.