Methods, identification tags and computer program products for automated location and monitoring of mobile devices

• US 7,525,432 B2
• Filed: 04/18/2005
• Issued: 04/28/2009
• Est. Priority Date: 09/15/2004
• Status: Active Grant

• Current Assignee: TeleTracking Technologies Incorporated
• Original Assignee: RadarFind Corporation (TeleTracking Technologies Incorporated)
• Inventors: Jackson, Stephen S.
• Primary Examiner(s): TWEEL JR, JOHN ALEXANDER
• Application Number:
  US11/108,324
• Publication Number:
  US 20060055537A1
• Time in Patent Office: 1,471 Days
• Field of Search: 340/572.1, 340/572.4, 340/10.1, 340/10.2, 340/825.49, 340/10.33
• US Class Current: 340/572.1
• CPC Class Codes: G08B 13/1427 with transmitter-receiver for distance detection
• CPC Class Codes: G08B 21/023 Power management, e.g. system sleep and wake up provisions
• CPC Class Codes: G08B 21/0275 Electronic Article Surveillance [EAS] tag technology used for parent or child unit, e.g. same transmission technology, magnetic tag, RF tag, RFID
• CPC Class Codes: G08B 21/028 Communication between parent and child units via remote transmission means, e.g. satellite network
• CPC Class Codes: G08B 21/0286 Tampering or removal detection of the child unit from child or article

Abstract

Methods are provided for providing location information associated with a mobile device. A request for presence information is received at an identification circuit associated with the mobile device. The request is received from a location circuit within a predetermined proximity of the identification circuit. The requested presence information is transmitted to the location circuit responsive to the request for presence information. Related identification tags and computer program products are also provided.

Claims

1. A method for providing location information associated with a mobile device, comprising:

receiving a request for presence information at an identification circuit associated with the mobile device, the request being received from a plurality of location circuits within a variable predetermined proximity of the identification circuit; and

broadcasting the requested presence information to the plurality of location circuits responsive to the request for presence information, without receiving acknowledgement of the requested presence information from the plurality of location circuits.

2. The method of claim 1, wherein receiving is preceded by waking the identification circuit up from a sleep mode so as to allow the identification circuit to receive the request.

3. The method of claim 2, wherein waking up is followed by:

listening for the request for presence information; and

returning the identification circuit to the sleep mode if the request is not received within a predetermined period of time.

4. The method of claim 3, wherein the predetermined period of time comprises a first predetermined period of time and wherein returning is followed by increasing the first predetermined period of time if the request for presence information is not received within a second predetermined period of time, greater than the first predetermined period of time.

5. The method of claim 2, wherein broadcasting the requested presence information is followed by returning the identification circuit to the sleep mode after a predetermined period of time.

6. The method of claim 5, wherein returning further comprises returning the identification circuit to the sleep mode after expiration of a timer set to the predetermined period of time.

7. The method of claim 6, wherein a length of time associated with the timer is specifically associated with the identification circuit.

8. The method of claim 1, wherein receiving is preceded by selecting a frequency on which the request for presence information will be received.

9. The method of claim 8, wherein selecting further comprises changing the selected frequency from a first frequency to a second frequency, different from the first frequency.

10. The method of claim 1, further comprising indicating a state of the mobile device so as to allow the state of the mobile device to be determined from a distance, the state of the mobile device indicating more than an on state and an off state of the mobile device.

11. The method of claim 1, further comprising:

detecting removal of the identification circuit from the mobile device; and

broadcasting a signal indicating removal of the identification circuit responsive to the detected removal of the identification circuit upon interrogation.

12. An identification circuit associated with a mobile device, the identification circuit being configured to:

receive a request for presence information, the request being received from a plurality of location circuits within a variable predetermined proximity of the identification circuit; and

broadcast the requested presence information to the plurality of location circuits responsive to the request for presence information, without receiving acknowledgement of the requested presence information from the plurality of location circuits.

13. The identification circuit of claim 12, wherein the identification circuit is further configured to wake up from a sleep mode so as to allow the identification circuit to receive the request.

14. The identification circuit of claim 13, wherein the identification is further configured to listen for the request for presence information and return to the sleep mode if the request is not received within a predetermined period of time.

15. The identification circuit of claim 14, wherein the predetermined period of time comprises a first predetermined period of time and wherein the identification circuit is further configured to increase the first predetermined period of time if the request for presence information is not received within a second predetermined period of time, greater than the first predetermined period of time.

16. The identification circuit of claim 13, wherein the identification circuit is further configured to return to the sleep mode after a predetermined period of time.

17. The identification circuit of claim 16, wherein the identification circuit is further configured to return to the sleep mode after expiration of a timer set to the predetermined period of time.

18. The identification circuit of claim 17, wherein a length of time associated with the timer is specifically associated with the identification circuit.

19. The identification circuit of claim 12, wherein the identification circuit is further configured with multiple frequency channel banks so as to allow selection of a single operating frequency from among the frequency channel banks.

20. The identification circuit of claim 19, wherein the identification circuit comprises an indicia configured to indicate a state of the mobile device so as to allow the state of the mobile device to be determined from a distance, the state of the mobile device indicating more than an on state or an off state.

21. The identification circuit of claim 20, wherein the identification circuit comprises a color coded mechanical slide switch, wherein colors on the switch indicate the state of the mobile device and wherein the state of the mobile device comprises in use, available or out-of-service.

22. The identification circuit of claim 12, wherein the identification circuit is provided on a thin printed circuit board (PCB) that is configured to break if removed from the mobile device and wherein the identification circuit is configured to broadcast a signal indicating removal of the identification circuit responsive to breaking of the PCB.

23. The identification circuit of claim 12, wherein the identification circuit comprises an identification tag that uses radio frequencies to communicate.

31. The computer program product of claim 23, further comprising computer readable program code configured to select a frequency on which the request for presence information will be received.

32. The computer program product of claim 31, wherein the computer readable program code configured to select further comprises computer readable program code configured to change the selected frequency from a first frequency to a second frequency, different from the first frequency.

33. The computer program product of claim 23, further comprising computer readable program code configured to indicate a state of the mobile device so as to allow the state of the mobile device to be determined from a distance, the state of the mobile device indicating more than an on state and an off state of the mobile device.

34. The computer program product of claim 23, further comprising computer readable program code configured to detect removal of the identification circuit from the mobile device and broadcast a signal indicating removal of the identification circuit responsive to the detected removal of the identification circuit from the mobile device.

24. A computer program product providing location information associated with a mobile device, the computer program product comprising:

a computer readable medium having computer readable program code embodied therein, the computer readable medium comprising;

computer readable program code configured to receive a request for presence information at an identification circuit associated with the mobile device, the request being received from a plurality of location circuits within a variable predetermined proximity of the identification circuit; and

computer readable program code configured to broadcast the requested presence information to the plurality of location circuits responsive to the request for presence information, without receiving acknowledgement of the requested presence information from the plurality of location circuits.

25. The computer program product of claim 24, further comprising computer readable program code configured to wake the identification circuit up from a sleep mode so as to allow the identification circuit to receive the request.

26. The computer program product of claim 25, further comprising:

computer readable program code configured to listen for the request for presence information; and

computer readable program code configured to return the identification circuit to the sleep mode if the request is not received within a predetermined period of time.

27. The computer program product of claim 26, wherein the predetermined period of time comprises a first predetermined period of time, the computer program product further comprising computer readable program code configured to increase the first predetermined period of time if the request for presence information is not received within a second predetermined period of time, greater than the first predetermined period of time.

28. The computer program product of claim 25, further comprising computer readable program code configured to return the identification circuit to the sleep mode after a predetermined period of time.

29. The computer program product of claim 28, wherein the computer readable program code configured to return further comprises computer readable program code configured to return the identification circuit to the sleep mode after expiration of a timer set to the predetermined period of time.

30. The computer program product of claim 29, wherein a length of time associated with the timer is specifically associated with the identification circuit.

35. A method for providing location information associated with a mobile device, comprising:

periodically broadcasting presence information from an identification circuit associated with the mobile device to a plurality of location circuits within a variable predetermined proximity of the identification circuit regardless of whether the mobile device is in motion or at rest and without receiving a request for the presence information from the plurality of location circuits and without receiving acknowledgement of the presence information from the plurality of location circuits.