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RFID Based Object and Location Identification Tool
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To understand the working of RFID system.
To read and write data to the tags.
To distinguish between multiple tags when simultaneously present
in the field.The RFID readers can be embedded into the environment
and the RFID tags carried by each user inform the system of the
current location of that user.
OBJECTIVE OF THE PROJECT
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Radio Frequency Identification The only truly automatic AIDC
technology
Provides non-contact, non-line-of-sight operation
Can be read-only, WORM (write once, read many) or read/write
Very difficult to counterfeit Capable of working in harsh
environments Highly capable and proven technology for a wide range
of applicationsWhat is RFID?
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One or more RF tags
Two or more antennas
One or more interrogators
One or more host computers
Appropriate softwareWhat Constitutes an RFID System?
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How Does RFID Work?Reader
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Data flow from a Tag to Server
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RFID Tag Attributes
Active RFIDPassive RFIDTag Power SourceInternal to tagEnergy
transferred using RF from readerTag BatteryYesNoRequired signal
strengthVery LowVery HighRangeUp to 100mUp to 3-5m, usually
lessMulti-tag reading1000s of tags recognized up to 100mphFew
hundred within 3m of reader
Data StorageUp to 128 Kb or read/ write & search128 bytes of
read/write
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Operating FrequencyAvailable Frequency BandsRF Signal
Propagation (range, reflections, and material transmittance)
Interference
Communication SignalInterrogation Signal with request commands
and controlResponse Signal with unique identification and data
Tag DesignPassive or Active PowerAntenna Design and
PerformanceIntegrated Circuit Design
Reader and Reader Antenna
Networking Requirements
RFID Technical Design Considerations
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How far? How fast? .....
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RFID Programmer SM2005-B5
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This microcontroller ARM LPC.
RFID Readers and Tags.
The ChipModule has nine general purpose IO pins and about 4KB of
flash memory that can be filled with custom built code.
The custom code was written using PSOC Designer.
Loading code is done through RS232C serial interface.Main
Components of the Project
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Block Diagram
