Remote indication device for use in wireless security systems

• US 6,255,944 B1
• Filed: 12/26/1997
• Issued: 07/03/2001
• Est. Priority Date: 12/26/1997
• Status: Expired due to Term

• Current Assignee: Honeywell International Inc.
• Original Assignee: Pittway Corporation (Honeywell International Inc.)
• Inventors: Addy, Kenneth L.
• Primary Examiner(s): POPE, DARYL C
• Application Number:
  US08/998,435
• Time in Patent Office: 1,285 Days
• Field of Search: 340/502, 340/504, 340/506, 340/693, 340/825.18, 340/825.31, 340/825.34, 340/825.69, 340/825.72, 340/292, 340/298, 340/314
• US Class Current: 340/539.3
• CPC Class Codes: G08B 25/007 Details of data content structure of message packets; data protocols
• CPC Class Codes: G08B 25/014 Alarm signalling to a central station with two-way communication, e.g. with signalling back
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence

Abstract

A wireless security system having a remote indication device, which operates in a low power mode. The remote indication device provides feedback in the form of a display indicating that a command from a remote control device has been successfully performed or to provide status. The user transmits a first radio frequency signal with a remote control device that is received by a first receiver in the remote indication device during a reduced current mode. The remote indication device then switches to normal current mode, which enables a second receiver, a transmitter, a processing unit and optionally disables the first receiver. The transmitter then retransmits the contents of the first radio frequency signal as a second radio frequency signal to a central control unit via a central receiver. The central control unit then transmits a confirmation or status message back to the remote indication device via a central transmitter in the form of a confirmation radio frequency signal. The remote indication device provides a presentation of the contents of the confirmation radio frequency signal on a presentation unit before returning to the reduced current mode in which the second receiver, transmitter, presentation unit, and processing unit are disabled and the first receiver is enabled. The status is optionally stored in the remote indication device, which enables the status to be re-presented upon request by the user. Alternatively, one receiver may include both the first and second receivers and operate in either the normal operating mode or the reduced power mode.

Claims

1. A method for providing status to a user in wireless communication systems comprising the steps of:

receiving a first radio frequency signal while operating in a reduced power mode;

switching from said reduced power mode to a normal operating mode;

transmitting a second radio frequency signal comprising data representative of data comprised in said first radio frequency signal while operating in said normal operating mode;

receiving a confirmation radio frequency signal while operating in said normal operating mode, said confirmation radio frequency signal transmitted in response to receipt of said second radio frequency signal and comprising status data in response to said second radio frequency signal;

presenting said status data to said user; and

switching from said normal operating mode to said reduced power mode after a predetermined time has expired,

wherein said first radio frequency signal is received over a first distance and said confirmation radio frequency signal is received over a second distance which is longer than said first distance.

2. The method for providing status to a user in wireless communication systems of claim 1, further comprising the steps of

storing said status data for a timeout period; and

re-presenting said status data to said user in response to receipt of a subsequent instance of said first radio frequency signal prior to lapse of said timeout period.

3. The method for providing status to a user in wireless communication systems of claim 1, further comprising the step of analyzing said first radio frequency signal to determine its source.

4. The method for providing status to a user in wireless communication systems of claim 1, further comprising the step of including information identifying a source of said second radio frequency signal prior to said step of transmitting said second radio frequency signal.

5. The method for providing status to a user in wireless communication systems of claim 1, further comprising the step of analyzing said confirmation radio frequency signal to determine its source.

6. The method for providing status to a user in wireless communication systems of claim 1, wherein said step of presenting said status data comprises the step of providing a visual representation of said status data to said user.

7. The method for providing status to a user in wireless communication systems of claim 1, wherein said step of presenting said status data comprises the step of providing an audible representation of said status data to said user.

8. An apparatus for providing status to a user in wireless communication systems which comprises:

means for receiving a first radio frequency signal while operating in a reduced power mode;

means for switching from a reduced power mode to a normal operating mode;

means for transmitting a second radio frequency signal comprising data representative of data comprised in said first radio frequency signal while operating in said normal operating mode;

means for receiving a confirmation radio frequency signal while operating in said normal operating mode, said confirmation radio frequency signal transmitted in response to receipt of said second radio frequency signal and comprising status in response to said second radio frequency signal;

means for presenting said status data to said user; and

means for switching from said normal operating mode to said reduced power mode after a predetermined time has expired,

wherein said first radio frequency signal is received over a first distance and said confirmation radio frequency signal is received over a second distance which is longer than said first distance.

9. The apparatus for providing status to a user in wireless communication systems of claim 8, further comprising

means for storing said status data for a timeout period; and

means for re-presenting said status data to said user in response to receipt of a subsequent instance of said first radio frequency signal prior to lapse of said timeout period following said status data being presented to said user.

10. The apparatus for providing status to a user in wireless communication systems of claim 8, further comprising means for analyzing said first radio frequency signal to determine its source.

11. The apparatus for providing status to a user in wireless communication systems of claim 8, further comprising means for including information identifying a source of said second radio frequency signal prior to said second radio frequency signal being transmitted.

12. The apparatus for providing status to a user in wireless communication systems of claim 8, further comprising means for analyzing said confirmation radio frequency signal to determine its source.

13. The apparatus for providing status to a user in wireless communication systems of claim 8, wherein said means for presenting said status data provides a visual representation of said status data to said user.

14. The apparatus for providing status to a user in wireless communication systems of claim 8, wherein said means for presenting said status data provides an audible representation of said status data to said user.

15. A remote indication device which comprises:

a first radio frequency receiver operating in a reduced power mode;

a transmitter operating in a normal operating mode;

a second radio frequency receiver operating in said normal operating mode;

a presentation unit; and

a processor module coupled to said first radio frequency receiver, said transmitter, said second radio frequency receiver and said presentation unit,

said processor module adapted to switch said remote indication device from said reduced power mode to said normal operating mode upon receipt of a first radio frequency signal by said first radio frequency receiver,

said processor module adapted to cause said transmitter to transmit a second radio frequency signal comprising data representative of data comprised in said first radio frequency signal,

said processor module adapted to enable said second radio frequency receiver to receive a confirmation signal transmitted in response to receipt of said second radio frequency signal and comprising status data in response to said second radio frequency signal,

said processor module adapted to enable said presentation unit to present said status data to said user, and

said processor module adapted to switch from said normal operating mode to said reduced power mode after a predetermined time has expired,

wherein said first radio frequency signal is received from a first distance and said confirmation radio frequency signal is received over a second distance which is longer than said first distance.

16. The remote indication device of claim 15, wherein said processor module is adapted to switch from said normal operating mode to said reduced power after a predetermined time has expired following said presentation of said status data to said user.

17. The remote indication device of claim 15, wherein said first radio frequency receiver is only enabled during said reduced power mode.

18. The remote indication device of claim 15, wherein said first radio frequency receiver comprises a superregenerative receiver.

19. The remote indication device of claim 15, wherein said first radio frequency receiver comprises a tuned radio frequency receiver.

20. The remote indication device of claim 15, wherein said presentation unit provides a visual representation of said status data to said user.

21. The remote indication device of claim 15, wherein said presentation unit provides an audible representation of said status data to said user.

22. The remote indication device of claim 15, wherein said processor module is adapted to determine a source of said first radio frequency signal.

23. The remote indication device of claim 15, wherein said processor module is adapted to determine a source of said confirmation radio frequency signal.

24. The remote indication device of claim 15, wherein said processor module is adapted to include an identification code in said second radio frequency signal which represents that said second radio frequency signal originated from said remote indication device.

25. The remote indication device of claim 15, wherein said first radio frequency receiver comprises a diode detector receiver.

26. The remote indication device of claim 15, wherein said processor module is adapted to store said status data and re-present said status data to said user upon receipt of a subsequent instance of said first radio frequency signal received prior to lapse of a timeout period.

27. A remote indication device which comprises:

a radio frequency receiver adapted to operate in a reduced power mode or a normal operating mode;

a transmitter operating in a normal operating mode;

a presentation unit; and

a processor module coupled to said radio frequency receiver, said transmitter, and said presentation unit,

said processor module adapted to switch said remote indication device from said reduced power mode to said normal operating mode upon receipt of a first radio frequency signal by said radio frequency receiver while operating in said reduced power mode,

said processor module adapted to cause said transmitter to transmit a second radio frequency signal comprising data representative of data comprised in said first radio frequency signal,

said processor module adapted to enable said radio frequency receiver while operating in said normal operating mode to receive a confirmation signal transmitted in response to receipt of said second radio frequency signal and comprising status data in response to said second radio frequency signal,

said processor module adapted to enable said presentation unit to present said status data to said user, and

said processor module adapted to switch from said normal operating mode to said reduced power mode after a predetermined time has expired,

wherein said first radio frequency signal is received from a first distance and said confirmation radio frequency signal is received over a second distance which is longer than said first distance.

28. The remote indication device of claim 27, wherein said radio frequency receiver operates in said reduced power mode with an on-time to off-time duty cycle of less than that of its operation in said normal operating mode.

29. The remote indication device of claim 27, wherein said radio frequency receiver operates in said reduced power mode with less current than during operation in said normal operating mode.

30. The remote indication device of claim 27, wherein said processor module is adapted to switch from said normal operating mode to said reduced power mode after a predetermined time has expired following said presentation of said status data to said user.

31. The remote indication device of claim 27, wherein said radio frequency receiver comprises a superregenerative receiver.

32. The remote indication device of claim 27, wherein said radio frequency receiver comprises a tuned radio frequency receiver.

33. The remote indication device of claim 27, wherein said presentation unit is a display.

34. The remote indication device of claim 27, wherein said presentation unit is an audible.

35. The remote indication device of claim 27, wherein said processor module is adapted to determine a source of said first radio frequency signal.

36. The remote indication device of claim 27, wherein said processor module is adapted to determine a source of said confirmation radio frequency signal.

37. The remote indication device of claim 27, wherein said processor module is adapted to include an identification code in said second radio frequency signal which represents that said second radio frequency signal originated from said remote indication device.

38. The remote indication device of claim 27, wherein said radio frequency receiver comprises a diode detector receiver.

39. The remote indication device of claim 28, wherein said processor module is adapted to store said status data and re-present said status data to said user upon receipt of a subsequent instance of said first radio frequency signal received prior to lapse of a timeout period.

40. A security system which comprises:

a remote control device;

a central control unit comprising a central receiver and a central transmitter; and

a remote indication device comprising a first radio frequency receiver

operating in a reduced power mode, a transmitter operating in a normal

operating mode, a second radio frequency receiver

operating in said normal operating mode,

a presentation unit, and

a processor module coupled to said first radio frequency receiver, said transmitter, said second radio frequency receiver and said presentation unit, said processor module adapted to switch said remote indication device from said reduced power mode to said normal operating mode upon receipt of a first radio frequency signal by said first radio frequency receiver from said remote control device, said processor module adapted to cause said transmitter to transmit a second radio frequency signal comprising data representative of data comprised in said first radio frequency signal to said central control unit via said central receiver, said processor module adapted to enable said second radio frequency receiver to receive a confirmation signal transmitted by said central control unit via said central transmitter in response to receipt of said second radio frequency signal comprising status data in response to said second radio frequency signal, said processor module adapted to enable said presentation unit to present said status data to said user, and said processor module adapted to switch from said normal operating mode to said reduced power mode after a predetermined time has expired,

wherein said processor module is adapted to determine a source of said first radio frequency signal.

41. The security system of claim 40, wherein said processor module is adapted to determine a source of said confirmation radio frequency signal.

42. The security system of claim 40, wherein said processor module is adapted to include an identification code in said second radio frequency signal which represents that said second radio frequency signal originated from said remote indication device.

43. The remote indication device of claim 40, wherein said processor module is adapted to store said status data and re-present said status data to said user upon receipt of a subsequent instance of said first radio frequency signal received prior to lapse of a timeout period.