Tracking unit

• US 8,217,791 B2
• Filed: 03/02/2011
• Issued: 07/10/2012
• Est. Priority Date: 10/01/2001
• Status: Expired due to Term

• Current Assignee: 3SI Security Systems, Inc. (3SI Holdco, Inc.)
• Original Assignee: 3SI Security Systems, Inc. (3SI Holdco, Inc.)
• Inventors: Grimm, Phillip H.
• Primary Examiner(s): Swarthout, Brent
• Application Number:
  US13/039,059
• Publication Number:
  US 20110148627A1
• Time in Patent Office: 496 Days
• Field of Search: 340/568.7, 340/539.13, 340/825.49
• US Class Current: 340/568.7
• CPC Class Codes: G01S 2205/002 for traffic control, mobile tracking, guidance, surveillance or anti-collision
• CPC Class Codes: G01S 2205/008 using a mobile telephone network
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: G08B 13/14 by lifting or attempted removal of hand-portable articles

Abstract

A tracking unit for assisting in the recovery of stolen monies or other property includes a housing containing a GPS receiver for receiving GPS signals from overhead satellites, a cellular phone transceiver, a microprocessor, and a battery. Following a theft, the microprocessor activates the cellular phone transceiver to dial the telephone number of a central monitoring station. The microprocessor obtains location data from the GPS receiver and transmits the location data, along with identification information, to the central monitoring station. The tracking unit also includes a separate, conventional RF beacon transmitter for allowing authorities to home-in on the tracking unit within a large building or other structure, either after the GPS signals are lost, or after the location of the tracking unit is localized to a specific building or area.

Claims

1. A tracking system for assisting in theft recovery, the system comprising:

a tracking unit, the unit comprising;

a housing simulating a size and weight of a bundled package of currency;

a global positioning system (GPS) receiver disposed within said housing and configured to receive GPS signals for determining location of the tracking unit;

a wireless telephone transceiver disposed within said housing and configured to establish a communications link, transmit the location of and an identifier for the tracking unit via the communications link, and to receive a command signal via the communications link;

a radio frequency (RF) beacon transmitter disposed within said housing configured to transmit an RF beacon; and

a controller disposed within said housing and electrically coupled to said GPS receiver, said wireless telephone transceiver, and said radio frequency beacon transmitter, said controller configured to direct the wireless telephone transceiver to establish the communications link and transmit the location and identifier, said controller further configured to, in response to the command signal, select an active operating mode of the tracking unit, wherein a first active operating mode comprises the wireless telephone transceiver active and the RF transmitter inactive, and a second active operating mode comprises the wireless telephone transceiver inactive and the RF transmitter active; and

a remote monitoring unit configured to receive the information transmitted by the tracking unit via the communications link and to transmit the command signal via the communications link when prompted by a system user.

2. The tracking system of claim 1, wherein said tracking unit comprises a power switch for minimizing electrical power drain on a power source for the unit until said tracking unit is activated.

3. The tracking system of claim 2, wherein said power switch comprises a reed switch responsive to a magnetic field of a keeper plate.

4. The tracking system of claim 1, wherein said controller is configured to cause said wireless telephone transceiver to establish the communications link with the remote monitoring unit on a periodic basis after the tracking unit is activated.

5. The tracking system of claim 1, wherein said controller is configured to cause said wireless telephone transceiver to establish and maintain continuously the communications link with the remote monitoring unit after the tracking unit is activated.

6. The tracking system of claim 1, further said tracking unit further comprises a warning generator and a sensor for detecting strength of a power source for said tracking unit, said sensor causing said warning generator to generate a warning if said power source strength falls below a predetermined threshold.

7. The tracking system of claim 1, wherein the remote monitoring unit comprises a modem attached to a computer.

8. The tracking system of claim 1, wherein the remote monitoring unit is configured, upon activation of the tracking system, to show a current location of the tracking unit on a map.

9. The tracking system of claim 8, wherein the remote monitoring unit is configured, upon activation of the tracking system, to show a trail on the map extending from an initial location of the tracking unit on the map to a current location on the map.

10. The tracking system of claim 1, wherein the GPS receiver is attached to a GPS antenna, collectively comprising a GPS module;

the wireless telephone transceiver is attached to a wireless telephone antenna, collectively comprising a wireless telephone module; and

the GPS module, the wireless telephone module, the radio frequency (RF) beacon transmitter, the controller, and a power source are all disposed on a flexible substrate.

11. The tracking system of claim 10, wherein the flexible substrate further comprises electrical conductors for making electrical connections among the GPS module, the wireless telephone module, the radio frequency (RF) beacon transmitter, the controller, and the power source.

12. A tracking system comprising:

a tracking unit, the unit comprising;

a housing that resembles a bundled package of currency;

a global positioning system (GPS) receiver disposed within said housing for receiving GPS signals for determining location of the tracking unit;

a first communications module disposed within said housing and configured to operate pursuant to a first communications protocol for establishing a communications link, the first communications module configured to transmit the location of and an identifier for the tracking unit via the communications link and to receive a command signal via the communications link;

a second communications module disposed within said housing and configured to transmit a beacon signal via a second communications protocol different from the first communications protocol; and

a controller disposed within said housing and electrically coupled to said GPS receiver, said first communications module, and said second communications module, said controller configured to cause the first communications module to establish the communications link and transmit the location and identifier, and further configured to select an active operating mode of the tracking unit in response to receipt of the command signal, wherein a first active operating mode comprises the first communications module active and the second communications module inactive, and a second active operating mode comprises the first communications module inactive and the second communications module active; and

a remote monitoring unit configured to receive the information transmitted by the tracking unit via the communications link and to transmit the command signal via the communications link when prompted by a system user.

13. The tracking system of claim 12, wherein the first communications module comprises a transceiver.

14. The tracking system of claim 12, wherein the first communications protocol comprises a wireless telephone communications protocol.

15. The tracking system of claim 14, wherein the wireless telephone communications protocol is a cellular telephone protocol.

16. The tracking system of claim 12, wherein the second communications protocol comprises an RF frequency communications protocol.

17. The tracking system of claim 12, wherein the first communications protocol comprises a wireless telephone communications protocol and the second communications protocol comprises an RF frequency communications protocol.

18. The tracking system of claim 12, wherein the GPS receiver, the first communications module, the second communications module, the controller, and a power source are all disposed on a flexible substrate.

19. The tracking system of claim 12, wherein the remote monitoring unit is configured, upon activation of the tracking system, to show a current location of the tracking unit on a map.