Enabling field intelligence with RFID tag antenna-based sensors Dr. Rahul Bhattacharyya Prof. Sanjay Sarma.

Enabling field intelligence with RFID tag antenna-based sensors

Dr. Rahul BhattacharyyaProf. Sanjay Sarma

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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