Mobile portal for RFID applications

• US 8,120,467 B2
• Filed: 04/12/2010
• Issued: 02/21/2012
• Est. Priority Date: 03/01/2005
• Status: Active Grant

• Current Assignee: Id Systems Incorporated (PowerFleet, Inc.)
• Original Assignee: Id Systems Incorporated (PowerFleet, Inc.)
• Inventors: Ehrman, Kenneth S., Ehrman, Michael L., Jagid, Jeffrey M.
• Primary Examiner(s): Brown, Vernal
• Application Number:
  US12/758,331
• Publication Number:
  US 20100194604A1
• Time in Patent Office: 680 Days
• Field of Search: 340/10.1, 340/825.72, 340/568.1, 340/572.4, 340/3.51, 700/236, 700/225, 700/214, 235/385, 343/713
• US Class Current: 340/10.1
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G08B 13/2402 Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting mechanical aspects of the tags, e.g. related to locking E05B73/0017; RFID readers G06K7/00; RFID tags G06K19/00; access control systems G07C9/00; anti-theft control in point of sale systems G07G3/003; security seals G09F3/03

Abstract

A mobile portal for RFID applications includes an RFID reader for reading identifications of proximately located RFID tagged items in the environment. A communicator is coupled to the RFID reader to receive the read identifications and then communicate the received read identifications over the wireless interface, through one of the gateways, to the central data processing system. Each mobile portal may be actuated for RFID read operations in response to information sensed concerning operation of the mobile asset/vehicle. Additionally, the central data processing system may issue instructions concerning mobile asset/vehicle operation, with those instructions communicated over the wireless interface to the mobile portal. Responsive to implementation of those instructions, the mobile portal actuates the RFID reader and compares the read identifications to identifications of certain RFID tagged items to be manipulated which were identified in the received instruction.

Claims

1. A mobile RFID portal comprising:

an RFID reader mountable to a mobile asset/vehicle;

two or more sensors for detecting operational data related to the mobile asset/vehicle; and

a communicator associated with the RFID reader and coupled to the two or more sensors for automatically actuating the RFID reader to read identifications of proximately located RFID tagged items when the two or more sensors indicate that the operational data related to the mobile asset/vehicle meets a predetermined threshold;

wherein the communicator actuates the RFID reader when the two or more sensors indicate that the mobile asset/vehicle senses that a load is present on the mobile asset/vehicle lift and the mobile asset/vehicle has been in motion for a predetermined length of time.

2. The mobile RFID portal of claim 1, wherein the communicator actuates the RFID reader when the two or more sensors indicate that the mobile asset/vehicle transitions from a stationary state to a moving state and the mobile vehicle/asset lift has been raised.

3. The mobile RFID portal of claim 1, wherein the communicator actuates the RFID reader when the two or more sensors indicate that the mobile asset/vehicle transitions from a moving state to a stationary state and the vehicle/asset lift has been lowered.

4. The mobile RFID portal of claim 1, wherein the communicator identifies RFID tagged items being transported by the mobile asset/vehicle by comparing a first list of RFID tagged items read by the RFID reader at a first time to a second list of RFID tagged items read by the RFID reader at a second time and identifying those items identified at both the first and second time as being transported by the mobile asset/vehicle.

5. The mobile RFID portal of claim 1, wherein the communicator identifies RFID tagged items being transported by the mobile asset/vehicle by comparing a first list of RFID tagged items read by the RFID reader at a first time to a plurality of additional lists of RFID tagged items read by the RFID reader at a plurality of additional times and identifying those items identified at the first time and the plurality of additional times as being transported by the mobile asset/vehicle.

6. A method of detecting items identified with RFID tags being moved by a mobile asset/vehicle, the method comprising:

actuating an RFID reader coupled to a mobile asset/vehicle carrying one or more RFID tagged items to read identifications of RFID tagged items proximately located to the mobile asset/vehicle in a first location and storing a first set of read RFID tagged items;

actuating the RFID reader to read identifications of RFID tagged items proximately located to the mobile asset/vehicle in a second location and storing a second set of read RFID tagged items;

comparing the first set of read RFID tagged items to the second set of RFID tagged items to identify RFID tagged items listed in both the first set and the second set;

identifying the RFID tagged items listed in both the first set and the second set as being transported by the mobile asset/vehicle.

7. The method of claim 6, wherein the step of actuating an RFID reader to read identifications of proximately located RFID tagged items is triggered based on operational data of the mobile asset/vehicle.

8. The method of claim 7, wherein

the second location is different from the first location and located such that the area read by the RFID in the first location and the area read by the RFID reader in the second location do not overlap.

9. The method of claim 7, wherein the operational data is representative of a vehicle lift condition.

10. The method of claim 7, wherein the operational data is representative of a vehicle location.

11. The method of claim 6, wherein the step of actuating an RFID reader to read identifications of proximately located RFID tagged items it triggered when the mobile asset/vehicle transitions from a stationary state to a moving state.

12. The method of claim 6, wherein the step of actuating an RFID reader to read identifications of proximately located RFID tagged items it triggered when a sensor associated with the mobile asset/vehicle senses that a load is present on the mobile asset/vehicle.

13. A mobile RFID portal, comprising:

an RFID reader mountable to a mobile asset/vehicle;

a motion sensor coupled to the mobile asset/vehicle for detecting operational data related to the movement of the mobile asset/vehicle;

a communicator, mountable to the mobile asset/vehicle and coupled to the RFID reader, the communicator for automatically actuating the RFID reader to read identifications of proximately located RFID tagged items when the motion sensor indicate that the operational data related to the mobile asset/vehicle has changed; and

an interface for connecting to the motion sensor, the RFID reader, and the communicator.

14. The portal of claim 13, wherein the communicator actuates the RFID reader when the motion sensor indicates that the mobile asset/vehicle transitions from a stationary state to a moving state.

15. The portal of claim 13, wherein the communicator actuates the RFID reader when the motion sensor indicates that mobile asset/vehicle transitions from a moving state to a stationary state.

16. The portal of claim 13, wherein the communicator further stores read identifications of proximately located RFID tagged items for subsequent communication over the wireless interface.

17. The portal of claim 13 further comprising:

a mobile asset/vehicle RFID tagged item manipulation sensor;

wherein the interface further connects the mobile asset/vehicle RFID tagged item manipulation sensor, the communicator actuating the RFID reader to read identifications of proximately located RFID tagged items in response to input from the mobile asset/vehicle RFID tagged item manipulation sensor indicative of a manipulation of certain RFID tagged items and the communicator subsequently actuating the RFID reader to read identifications of proximately located RFID tagged items in response to input from the mobile asset/vehicle motion sensor indicative of mobile vehicle/asset movement, the communicator further processing the read identifications of proximately located RFID tagged items in comparison to identify the certain RFID tagged items which were manipulated.