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ABSTRACT Coverage area is an important performance metric for RFID systems, especially those used for inventory management. As such, there are a range of methods being developed to try to increase the coverage area of RFID systems without requiring additional costly and power hungry RFID readers. Most existing approaches to increase coverage employ RFID readers with multiple antennas, but this creates problems in deployment and in the timing of the RFID tag reads from the different antennas. In this system, we propose a different approach to extend the coverage area of a single reader, using a ZigBee based, battery-operated device we call an edge device to cooperate with the RFID reader on reading the RFID tags. The edge device is also compatible with existing RFID range extension methods for additional increase in coverage. We implement an edge device hardware platform and evaluate the performance of the system in terms of coverage extension, and we provide estimates of the lifetime .
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ZEBROS PROJECTS
Office Address: No 4 / Flat No 3D, Sai Kiran Apts, First Main Road, Kasturba Nagar, Chennai-20 web: www.zebros.in e mail : [email protected] mob: 99400 98300,9500075001
RFID RANGE EXTENSION WITH LOW-POWER WIRELESS
EDGE DEVICES
ABSTRACT
Coverage area is an important performance metric for RFID systems, especially
those used for inventory management. As such, there are a range of methods being
developed to try to increase the coverage area of RFID systems without requiring
additional costly and power hungry RFID readers. Most existing approaches to increase
coverage employ RFID readers with multiple antennas, but this creates problems in
deployment and in the timing of the RFID tag reads from the different antennas. In this
system, we propose a different approach to extend the coverage area of a single reader,
using a ZigBee based, battery-operated device we call an edge device to cooperate with
the RFID reader on reading the RFID tags. The edge device is also compatible with
existing RFID range extension methods for additional increase in coverage. We
implement an edge device hardware platform and evaluate the performance of the
system in terms of coverage extension, and we provide estimates of the lifetime
achievable for different tag access scenarios.
EXISTING SYSTEM
Radio-frequency identification (RFID) systems use RF electromagnetic fields to
communicate with tags for the purpose of identification. RFID systems are widely used
for managing assets and people, as well as for tracking inventory by attaching tags to
merchandise. RFID systems are generally composed of RFID tags, which store the ID
information, and an RFID reader, which transmits the electromagnetic energy to power
the tags as well as to access or modify the tag ID information. There are three types of
RFID tags: passive tags, active tags and battery-assisted passive tags. Thus, UHF RFID
systems are currently being used in a wide range of applications.
ZEBROS PROJECTS
Office Address: No 4 / Flat No 3D, Sai Kiran Apts, First Main Road, Kasturba Nagar, Chennai-20 web: www.zebros.in e mail : [email protected] mob: 99400 98300,9500075001
The maximum range of tag access (i.e., the read range) is a very important metric
for RFID systems, representing the coverage capability for the RFID system. A system
with a long tag access range can cover more area for tag reads (e.g., for inventory
tracking), and thus can track more assets with fewer RFID readers and can provide
more alerts in an access control system.
PROPOSED SYSTEM
We proposed an edge device that can cooperate with an RFID reader to extend
the access range for RFID tags, hence increasing system coverage. This edge device has
the advantage of low power operation, being easy to deploy and enabling a highly
scalable system. We implemented the edge device and evaluated the performance of the
system with an existing RFID reader and RFID tags. The results show that the edge
device can improve the coverage and access range performance of existing RFID
systems. When an RFID reader cooperates with two edge devices, the system is able to
cover approximately twice the area compared to the coverage area when a single edge
device is used. Also, the edge devices can work with existing range extension methods
such as a multiple antenna system to create a hybrid system and obtain even more
coverage.
BLOCK DIAGRAM
CONTACT: ZEBROS PROJECTS
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ZEBROS PROJECTS
Office Address: No 4 / Flat No 3D, Sai Kiran Apts, First Main Road, Kasturba Nagar, Chennai-20 web: www.zebros.in e mail : [email protected] mob: 99400 98300,9500075001
ADVANTAGES
Low cost
Coverage area is high
No external antennas
APPLICATIONS
Security applications
Gateway applications
Some attendance places use in RFID
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ZEBROS PROJECTS
Office Address: No 4 / Flat No 3D, Sai Kiran Apts, First Main Road, Kasturba Nagar, Chennai-20 web: www.zebros.in e mail : [email protected] mob: 99400 98300,9500075001
What is IEEE?
The Institute of Electrical and Electronics Engineers or IEEE (read eye-triple-e) is Incorporated in the State of New York, United States. It was formed in 1963 by the merger of the Institute of Radio Engineers (IRE, founded 1912) and the American Institute of Electrical Engineers (AIEE, founded 1884). A membership organization comprised of engineers, scientists and students that sets standards for computers and communications. It is a nonprofit organization with more than 365,000 members in around 150 countries.
The IEEE describes itself as "the world's largest technical professional society -- promoting the development and application of electro technology and allied sciences for the benefit of humanity, the advancement of the profession, and the well-being of our members."
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ZEBROS PROJECTS
Office Address: No 4 / Flat No 3D, Sai Kiran Apts, First Main Road, Kasturba Nagar, Chennai-20 web: www.zebros.in e mail : [email protected] mob: 99400 98300,9500075001
PROJECT SUPPORT
0th Review 1st Review
Abstract Existing System Disadvantages Proposed System Advantages Objective System Requirements System Architecture
Literature Survey Module List Module Description Data Flow Diagram Level DFD Module Wise DFD Problem Definition Review Document Explanation
2nd Review 3rd Review
Use case Diagram Class Diagram Collaboration Diagram Sequence Diagram Activity Diagram Testing & test cases Partial Code Screenshot for First two
module Review Document Explanation
Conclusion References Future Enhancement 65% code (Executable Format) Required Software Review Document Explanation
Final Review
Complete Code with Enhancement
Final Document (University Standard Format)
Complete Explanation for Project Concept & Code
