System and a Method for Improving the Performance of Rfid Systems

• US 20080055085A1
• Filed: 09/26/2005
• Published: 03/06/2008
• Est. Priority Date: 09/27/2004
• Status: Abandoned Application

• Current Assignee: Menta Networks Limited
• Original Assignee: Menta Networks Limited
• Inventors: Samboursky, Jacob, Rutshtein, Uri
• Application Number:
  US11/571,897
• Publication Number:
  US 20080055085A1
• Time in Patent Office: Days
• US Class Current: 340/572.1
• 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: G06K 7/10019 resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. collision between the communication channels used by wireless communication devices, where the solution is not particularly adapted for RFIDs or the like, H04W74/08

Abstract

The present invention is an innovative system and method for managing RFID elements which provides a solution for improving the efficiency, reliability and security of RFID systems. From the stand point of the users, the proposed system provides a unified interface to the raw data, giving them full and continuous access to all tags in a given RFID system. The invention enables operating a RFID system in diverse and less than optimal conditions which would otherwise compromise the integrity of the data. For instance, the proposed solution can achieve high degrees of accuracy in environments where liquid and metal distractions tender tags otherwise unreachable. In addition, the system provides means for successfully accomplishing transference of advance commands such as read, write, lock and suspend to tags which are in noisy and multi tag environments, as well as tags which are in motion or are in remote distances from a reader.

Claims

1. A system for managing radio frequency identification (RFID) elements communicating with RFID readers, said system comprised of:

an on-site software component residing on a computing device for centralizing real time communication between RFID readers in a single geographic location, wherein said communication includes collecting and integrating all data gathered by said RFID readers;

An interface module enabling users to communicate directly with the RFID tags through the on-site software component independent of the activation of any specific reader.

2. The system of claim 1 further comprising a control module for dynamic real time synchronization between RFID readers.

3. The system of claim 1 further comprising a logical layer module which holds updated information of RFID elements data status and activities of both communicable and incommunicable RFID elements.

4. The system of claim 1 wherein the on-site module further controls command transference characteristics of the RFID readers to optimize the operation of the local RFID system.

5. The system of claim 1 further comprising a central server which communicates with at least one central computing device, wherein each central computing device manages the RFID elements located at different geographic locations (domains), said central server enabling the management and control of all RFID data as represented in the logical layer.

6. The system of claim 3 wherein the logical layer module further includes virtual memory representing extended memory of read write RFID tags.

7. The system of claim 3 wherein the logical layer module further includes command buffering algorithm enabling the control of the transmission of commands to the RFID tags in accordance with configured conditions for ensuring the arrival of commands to the RFID tags.

8. The system of claim 2 further including a designated RFID time division multiplexing (FDM) communication module for managing the communication of the RFID readers.

9. The system of claim 2 further including a designated RFID frequency division multiplexing (FDM) communication module for managing the communication of the RFID readers.

10. The system of claim 8 wherein the algorithm is implemented by a designated middleware module which dynamically defines the timing of the RFID readers, in accordance with optimization calculations.

11. The system of claim 9 wherein the algorithm is implemented by a designated middleware module which dynamically defines the frequency of use for the RFID readers, in accordance with optimization calculations.

12. The system of claim 1 further comprising a polarity adjustment module for preventing mutual interference between different RFID readers.

13. The system of claim 1 wherein the on-site software module further includes an allocation module for dividing particular operations between the different RFID readers, wherein each reader performs a segment of the operation.

14. The system of claim 13 wherein the allocation module is based on a learning algorithm for dynamically selecting optimal communication patterns in any given situation.

15. The system of claim 1 further comprising an organization module which defines hierarchical relations between the RFID elements, wherein the hierarchical relations represent logical relations between the objects to which the RFID elements are attached.

16. The system of claim 15 wherein the RFID elements at the upper levels of the hierarchical relations are enabled to automatically store data relating to lower level RFID elements associated with the upper level RFID elements.

17. The system of claim 16 wherein RFID elements which store information of the lower level elements can be updated with data by a designated module.

18. The system of claim 1 further including a security module for encrypting the communication between the RFID readers and RFID tags.

19. The system of claim 1 further including an intrusion detection module for an automatic detection of unauthorized operations of RFID readers in the region.

20. The system of claim 1 further including an intrusion prevention module for an automatic prevention of unauthorized operations of RFID readers in the region.

21. The system of claim 18 wherein the security module enables defining a multi-level authorization procedure for the communication between the RFID readers and the RFID tags.

22. A method for managing radio frequency identification (RFID) tags communicating with RFID readers, said method comprising the steps of:

centralizing real time communication between RFID readers in a single geographic location;

collecting and integrating all data gathered by said RFID readers.

23. The method of claim 22 further comprising the step of holding updated information of RFID elements data status and activities of both communicable and incommunicable RFID elements.

24. The method of claim 22 further comprising the step of dynamically synchronizing in real time between the RFID readers.