enabling field intelligence with rfid tag antenna-based sensors dr. rahul bhattacharyya prof. sanjay...
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Enabling field intelligence with RFID tag antenna-based sensors
Dr. Rahul BhattacharyyaProf. Sanjay Sarma
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© Auto ID Labs, MITSlide 2 of 15
The Internet is for Things… Eventually
The lab agenda
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Research themes
Interoperability
Extensibility
Beyond ID: RFID tags as sensors
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Beyond the ‘ID’ in RFID
Why RFID for sensing?
Proven track record of pervasive deployment
Low cost RFID tag manufacturing
Standardized reader-tag communication
Free adoption in RFID-enabled processes
Question: How to add sensing functionality at low-cost?
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RFID ReaderRFID Tag
RFID-based sensing
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2 Examples
Field Moisture Sensor
Surface Crack Detector
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Example 1: Field moisture sensing
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Moisture sensor design
Antenna
IC
Monopole probe
Sand
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Moisture sensor results
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Example 2: Surface crack detection
• 1 in 4 US bridges are structurally deficient (NYT 2009)
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Crack sensor prototype
Antenna
Tag IC
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Crack sensor results
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Conclusion
Theme of extensibility
Scope of RFID for pervasive sensing
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Relevant Publications
A. Hasan, R. Bhattacharyya and S. Sarma, "A Monopole-Coupled RFID Sensor For Pervasive Soil Moisture Monitoring,” accepted at the IEEE International Symposium on Antennas and Propagation: Special Session on Advances in RFID Sensing, 2013.
P. Kalansuriya, R. Bhattacharyya and S. Sarma, "An antenna-based RFID expansion joint monitor,” accepted at the IEEE International Symposium on Antennas and Propagation: Special Session on Advances in RFID Sensing, 2013.
P. Kalansuriya, R. Bhattacharyya and S. Sarma, "RFID Tag Antenna-Based Sensing for Pervasive Surface Crack Detection", IEEE Sensors Journal, 2013.
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Thank You