Passive UHF Sensing Inlays
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The document outlines advanced features of passive RFID sensors developed by Smartrac, including moisture, temperature, pressure, and proximity sensing capabilities. Unlike traditional RFID sensors, these passive sensors are cost-effective, easy to deploy, and have a long lifespan without maintenance. The document also highlights various applications of these sensors across multiple industries, including healthcare, construction, and smart homes.
Passive UHF Sensing Inlays
- 1. Lauri Hyytinen, Head of Segment Automotive Passive UHF Sensing Inlays
- 2. Background Source GS1 SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 2
- 3. Inlay price erosion SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 3
- 4. Industry trends SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 4
- 5. Challenge What if RFID could offer more than an unique number and small electrical memory? SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 5
- 6. Traditional RFID sensors Active sensors: Expensive Complicated structure Special requirements for readers Short lifetime Difficult maintenance Challenging recycling. SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 6
- 7. Passive RFID Sensors 1. RFMicron is offering 2 sensor IC’s at the moment. 2. MagnusS2 can measure moisture content, recognize liquids, measure pressure and proximity. 3. MagnusS3 has a temperature sensor build inside the IC and it can do same than S2 with higher resolution. SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 7 Benefits: Similar structure to standard RFID inlays Easily deployable Long lifetime without maintenance Easy recycling Great read range Follows industry-standard ISO 18000-6 UHF protocol
- 8. Sensor Chip Capabilities SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 8 CHAMELEON ENGINE Self tuning capability to optimize performance for different antenna conditions TEMPERATURE SENSOR CIRCUIT Temperature sensing circuit built into the chip ON CHIP RSSI Amount of RF power received by the chip
- 9. Moisture Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 9 Water / moisture detunes the antenna Chip automatically adjusts internal capacitance to match the detuned antenna Sensorvalue Time Degree of capacitance adjustment is reflected as the sensor value
- 10. Moisture Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 10 Internal capacitance changes even more Sensorvalue Time Further change in sensor value More water / moisture detunes the antenna further
- 11. Moisture Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 11 Sensorvalue Time
- 12. Proximity Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 12 Chip adjusts internal capacitance to match the detuned antenna Sensorvalue Time Change in sensor value Metallic / high detuning material
- 13. Proximity Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 13 Sensorvalue Time
- 14. Proximity Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 14 Sensorvalue Time
- 15. Pressure Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 15 Metallic foil material Compressible foam material Sensor Tag
- 16. Pressure Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 16 PRESSUREPRESSURE Metallic foil moves closer to the antenna, detuning it Foam material compresses PRESSURE Sensorvalue Time Change in sensor value Higher pressure will compress the foam more, bringing the metal foil even closer
- 17. Temperature Sensing SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 17 Temperature Time Temperature circuit resides in the chip itself, sensor output reflects the silicon die temperature
- 18. How Does a Reader Read Sensor Values? SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 18 Reader issues inventory command Tag receives power, and continuously writes its sensor value into its own memory Tag replies its EPC Reader requests data at sensor memory location Tag replies memory location data (sensor value) READER TAG
- 19. SMARTRAC Moisture Sensor Products SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 19 SENSOR DOGBONE SENSOR PATCH SENSOR TADPOLE AND MORE… General purpose moisture detection Diaper and fabric moisture detection On-metal moisture detection
- 20. Sensor Tadpole SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 20 Voted “Best New Product” at RFID Journal Live! 2016 Application video: https://www.youtube.com/watch?v=0LNfwqgQp_M
- 21. SMARTRAC Temperature Sensor Products SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 21 TEMPERATURE DOGBONE AND MORE… Temperature and moisture sensing
- 22. Possible application areas: SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 22 Healthcare Construction Smart packaging Oil and gas industry Forest & wood industry Cold chain Smart factory Smart home Autonomous driving
- 23. Challenge Do you want to know your application better, collect accurate and real time data? Challenge us to find a suitable sensor solution for you. SMARTRAC TECHNOLOGY GROUP Lauri Hyytinen Head of Segment Automotive Mobile: + 358 40 571 9832 E-mail: lauri.hyytinen@smartrac-group.com Internet: www.smartrac-group.com SMARTRAC TECHNOLOGY GROUP – ALL RIGHTS RESERVED Page 23
Editor's Notes
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