A Radio Frequency Identification (RFID)-based wireless sensor device for drug compliance measurement Alan Montefiore, Anne...
Agenda <ul><li>Why measure compliance ? </li></ul><ul><li>Technical requirements </li></ul><ul><li>Designs </li></ul><ul><...
Compliance with drug therapy <ul><li>30%-50% of patients fail to comply completely with treatment , and this is a signific...
Technical requirements <ul><li>Reliably detect dispensing </li></ul><ul><ul><li>No false positive from gross movements </l...
The Intel WISP <ul><li>Wireless Identification and Sensing platform </li></ul>
WISP technology <ul><li>Communicates via standard EPC Gen2 protocol  -UHF frequency </li></ul><ul><li>Includes temperature...
Approach to design  <ul><li>Rapid application development </li></ul><ul><li>Prototype, test, refine </li></ul><ul><li>Soft...
Testing <ul><li>Initial testing of different designs </li></ul><ul><li>Reliability measured in terms of accuracy of identi...
Prototypes Forcing recognizable movements to identify dispensing
Final Design <ul><li>Two WISPS on dispenser.  </li></ul><ul><li>One rotating when dispensing one not.  </li></ul><ul><li>B...
Results <ul><li>5 Users – 100% reliability of detection </li></ul><ul><li>Mechanical system does limit dispensing </li></ul>
Problems and issues <ul><li>WISP not fully mature – processing while out of range hard to implement </li></ul><ul><li>Copy...
Conclusions <ul><li>Simple mechanical systems can be used to control dispensing. </li></ul><ul><li>RFID- based devices can...
Future work <ul><li>Investigate methods of recording syringe-based drug delivery </li></ul><ul><li>Improve software to all...
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A Radio Frequency Identification (RFID)-based wireless sensor device for drug compliance measurement

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Dave Parry
School of Computing and Mathematical Sciences, Auckland University of Technology
(4/11/10, Square, 10.30)

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Transcript of "A Radio Frequency Identification (RFID)-based wireless sensor device for drug compliance measurement"

  1. 1. A Radio Frequency Identification (RFID)-based wireless sensor device for drug compliance measurement Alan Montefiore, Anne Philpott, Dave Parry AURA Laboratory and School of Computing and Mathematical Sciences, Auckland University of Technology, Auckland [email_address]
  2. 2. Agenda <ul><li>Why measure compliance ? </li></ul><ul><li>Technical requirements </li></ul><ul><li>Designs </li></ul><ul><li>Results </li></ul>
  3. 3. Compliance with drug therapy <ul><li>30%-50% of patients fail to comply completely with treatment , and this is a significant clinical issue. </li></ul><ul><li>“ Secondary” non-compliance in this case, Patients have the medication, but don’t take it </li></ul><ul><li>Compliance a particular problem in the elderly, and there is no “magic bullet” </li></ul>
  4. 4. Technical requirements <ul><li>Reliably detect dispensing </li></ul><ul><ul><li>No false positive from gross movements </li></ul></ul><ul><ul><li>No undercounting </li></ul></ul><ul><ul><li>Not operator dependent </li></ul></ul><ul><ul><li>Distinguish between different containers </li></ul></ul><ul><li>Small impact on routine lifestyle </li></ul><ul><li>Cheap </li></ul>
  5. 5. The Intel WISP <ul><li>Wireless Identification and Sensing platform </li></ul>
  6. 6. WISP technology <ul><li>Communicates via standard EPC Gen2 protocol -UHF frequency </li></ul><ul><li>Includes temperature sensors, accelerometer, voltage sensor and microprocessor </li></ul><ul><li>Not yet commercially available, accessed via “WISP Challenge” </li></ul>
  7. 7. Approach to design <ul><li>Rapid application development </li></ul><ul><li>Prototype, test, refine </li></ul><ul><li>Software running on WISP microprocessor, RFID reader and host computer. </li></ul><ul><li>Agile development for software. </li></ul>
  8. 8. Testing <ul><li>Initial testing of different designs </li></ul><ul><li>Reliability measured in terms of accuracy of identifying dispensing, relibility of dispensing and lack of false positives </li></ul>
  9. 9. Prototypes Forcing recognizable movements to identify dispensing
  10. 10. Final Design <ul><li>Two WISPS on dispenser. </li></ul><ul><li>One rotating when dispensing one not. </li></ul><ul><li>Based on “smint” dispenser </li></ul>
  11. 11. Results <ul><li>5 Users – 100% reliability of detection </li></ul><ul><li>Mechanical system does limit dispensing </li></ul>
  12. 12. Problems and issues <ul><li>WISP not fully mature – processing while out of range hard to implement </li></ul><ul><li>Copyright/ Patent issues with this design ? </li></ul><ul><li>Increased robustness required. </li></ul><ul><li>Still can be fooled – dispense and flush </li></ul>
  13. 13. Conclusions <ul><li>Simple mechanical systems can be used to control dispensing. </li></ul><ul><li>RFID- based devices can be used to record activity accurately and cheaply </li></ul><ul><li>Expensive infrastructure can be used for multiple purposes </li></ul>
  14. 14. Future work <ul><li>Investigate methods of recording syringe-based drug delivery </li></ul><ul><li>Improve software to allow recording outside RFID reader detection area </li></ul><ul><li>Identify methods to improve reporting to user and others. </li></ul><ul><li>Develop more robust and reusable approach for production version </li></ul>

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