Rechargeable interrogation reader device and method

• US 20040106376A1
• Filed: 04/24/2003
• Published: 06/03/2004
• Est. Priority Date: 04/24/2002
• Status: Abandoned Application

• Current Assignee: Marconi Communications, Inc. (Marconi Holdings Company Limited)
• Original Assignee: Marconi Communications, Inc. (Marconi Holdings Company Limited)
• Inventors: Forster, Ian J.
• Application Number:
  US10/422,633
• Publication Number:
  US 20040106376A1
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/07758 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
• CPC Class Codes: G06K 2007/10504 Data fields affixed to objects or articles
• CPC Class Codes: G06K 7/00 Methods or arrangements for sensing record carriers, e.g. for reading patterns methods or arrangements for marking the record carrier in digital fashion G06K1/00; pattern recognition G06F18/00; arrangements for image or video recognition or understanding G06V10/00; character recognition, recognising digital ink or document-oriented image-based pattern recognition G06V30/00
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00302 Overcharge protection

Abstract

The present invention relates to a rechargeable transmission device that is coupled to a rechargeable energy source for power. The transmission device communicates with wireless communication devices attached to objects and/or goods to retrieve identification, tracking and other information about the objects. The transmission device is attached to a moveable member that is adapted to carry objects containing wireless communication devices so that the transmission device is aligned with the objects for communication purposes. A recharging unit is attached to the moveable member to form an energy coupling with a power source unit attached to a static member of the transportation device. The power source unit and the recharging unit form a contactless recharging device to recharge the rechargeable interrogation reader when the recharging unit is moved adjacent to power source unit.

Claims

1. A rechargeable interrogation reader that is adapted to recharge its energy source from a primary coil, comprising:

a communication electronics;

a rechargeable energy source coupled to said communication electronics to provide power to said communication electronics; and

a secondary coil adapted to form a transformer when placed adjacent to the primary coil excited by an alternating-current to transfer energy through induction from the primary coil to said secondary coil to recharge said rechargeable energy source.

2. The reader of claim 1, wherein said rechargeable energy source is comprised from the group consisting of a battery and a capacitor.

3. The reader of claim 1, further comprising a remote communication module adapted to communicate information received from said communication electronics remotely.

4. The reader of claim 1, further comprising a network communication module adapted to communicate information received from said communication electronics over a network.

5. The reader of claim 1, wherein said alternating-current is a low frequency field.

6. The reader of claim 1, further comprising a control system that controls the energy from said secondary coil to said rechargeable energy source.

7. The reader of claim 6, wherein said control system recharges said rechargeable energy source when the energy from the secondary coil exceeds a threshold energy level.

8. The reader of claim 6, wherein said control system monitors said rechargeable energy source to determine if said energy source is fully charged.

9. A rechargeable interrogation reader that is adapted to recharge its energy source from a first plate of a capacitor, comprising:

a communication electronics;

a rechargeable energy source coupled to said communication electronics to provide power to said communication electronics; and

a second plate placed adjacent to the first plate to form a capacitor wherein the first plate is excited by an oscillating voltage to transfer energy through an electric field from the first plate to said second plate to recharge said rechargeable energy source.

10. The rechargeable interrogation reader of claim 9, further comprising a dielectric material placed in between the first plate and said second plate.

11. A cargo transportation system adapted to transport one or more objects having wireless communication devices that are interrogated by a rechargeable interrogation reader, comprising:

a static member attached to the transportation system;

a moveable member adapted to carry one or more objects that moves relative to said static member;

a primary coil attached to said static member;

a rechargeable interrogation reader having a rechargeable energy source wherein said interrogation reader is attached to said moveable member; and

a secondary coil mounted to said moveable member and coupled to said interrogation reader that is adapted to create a transformer to recharge said rechargeable energy source with energy from said secondary coil when said moveable member is positioned so that said secondary coil is in close proximity to said primary coil.

12. The system of claim 11, wherein said rechargeable energy source is comprised from the group consisting of a battery and a capacitor.

13. The system of claim 11, wherein said interrogation reader further comprises a remote communication module adapted to communicate information received from said communication electronics remotely.

14. The system of claim 11, wherein said interrogation reader further comprises a communication electronics and a network communication module adapted to communicate information received from said communication electronics over a network.

15. The system of claim 11, wherein said interrogation reader further comprises a control system that controls the energy from said secondary coil to said rechargeable energy source.

16. The system of claim 15, wherein said control system recharges said rechargeable energy source when the energy from the secondary coil exceeds a threshold energy level.

17. The system of claim 15, wherein said control system monitors said rechargeable energy source to determine if said energy source is fully charged.

18. The system of claim 11, wherein said static member is a static arm and said moveable member is a moveable arm.

19. The system of claim 11, wherein said interrogation reader is coupled to said secondary coil using a coaxial cable.

20. The system of claim 11, wherein said transportation system is comprised from the group consisting of a forklift truck and a crane.

21. The system of claim 11, further comprising a power signal that transfer energy to said primary coil when said secondary coil is located adjacent to said primary coil.

22. A cargo transportation system adapted to transport one or more objects having wireless communication devices that are interrogated by a rechargeable interrogation reader, comprising:

a static member attached to the transportation system;

a moveable member adapted to carry one or more objects that moves relative to said static member;

a first plate attached to said static member;

a rechargeable interrogation reader having a rechargeable energy source wherein said interrogation reader is attached to said moveable member; and

a second plate mounted to said moveable member and coupled to said interrogation reader that is adapted to create a capacitor to recharge said rechargeable energy source with energy from said second plate when said moveable member is positioned so that said second plate is in close proximity to said first plate.

23. The system of claim 22, further comprising a dielectric placed in between said first plate and said second plate.

24. The system of claim 22, further comprising a power signal that transfer energy to said first plate when said second plate is located adjacent to said first plate.

25. A method of recharging a rechargeable interrogation reader from a power source on a transportation system, comprising the steps of:

attaching a primary coil to a static member of the transportation system;

attaching a interrogation reader having a rechargeable energy source to a moveable member of the transportation system; and

attaching a secondary coil to said moveable member and coupling said secondary coil to said interrogation reader so that said primary coil and said secondary coil form a transformer for recharging said rechargeable energy source.

26. The method of claim 25, further comprising moving said moveable member so that said primary coil and said secondary coil are located adjacent each other to form said transformer.

27. The method of claim 25, further comprising controlling the energy from said secondary coil to recharge said rechargeable energy source.

28. The method of claim 27, further comprising decoupling said rechargeable energy source from said secondary coil when said rechargeable energy source is substantially fully charged.

29. The method of claim 27, further comprising decoupling said rechargeable energy source from said secondary coil when said rechargeable energy source contains energy above a threshold energy level.

30. The method of claim 25, further comprising raising said static member to decouple said secondary coil from said primary coil to discontinue recharging said rechargeable energy source.

31. The method of claim 25, further comprising lowering said static member to couple said secondary coil to said primary coil to form said transformer for recharging said rechargeable energy source.

32. A method of recharging a rechargeable interrogation reader from a power source on a transportation system, comprising the steps of:

attaching a first plate to a static member of the transportation system;

attaching an interrogation reader having a rechargeable energy source to a moveable member of the transportation system; and

attaching a second plate to said moveable member and coupling said second plate to said interrogation reader so that said first plate and said second plate form a capacitor for recharging said rechargeable energy source.

33. A method of using a rechargeable interrogation reader on a transportation system having a power source, comprising the steps of:

moving a moveable member on the transportation system containing a secondary coil relative to a static member on the transportation system having a primary coil; and

coupling said primary coil to said secondary coil to form a transformer for recharging a rechargeable energy source coupled to the rechargeable interrogation reader.

34. The method of claim 33, wherein said moving includes moving said moveable member so that said primary coil and said secondary coil are located directly adjacent to each other.

35. The method of claim 33, further comprising raising said static member relative to said moveable member to decouple said secondary coil from said primary coil to discontinue recharging said rechargeable energy source.

36. The method of claim 33, further comprising lowering said static member to couple said secondary coil to said primary coil to form said transformer for recharging said rechargeable energy source.

37. The method of claim 33, further comprising coupling a power signal to said primary coil when said moveable member is moved adjacent to said primary coil.

38. A method of using a rechargeable interrogation reader on a transportation system having a power source, comprising the steps of:

moving a moveable member on the transportation system containing a second plate relative to a static member on the transportation system having a first plate; and

coupling said first plate to said second plate to form a capacitor for recharging a rechargeable energy source coupled to the rechargeable interrogation reader.

39. The method of claim 38, further comprising coupling a power signal to said first plate when said moveable member is moved adjacent to said first plate.