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IoT for Healthcare

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Miodrag Bolić (University of Ottawa): IoT for healthcare: research challenges and best practices, SenZations 2015

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IoT for Healthcare

  1. 1. IoT for Healthcare Miodrag Bolic Associate Professor School of Electrical Engineering and Computer Science (EECS) Faculty of Engineering
  2. 2. Outline • Handheld Devices and Wearables – Monitor and Assist • Challenges and some Research Directions – Types of sensors and actuators, Quality of data, Form Factor, Localization, Power Consumption • My Research Group Vision • Future Directions
  3. 3. Healthcare and IoT • Healthcare Landscape is Changing – Obesity is growing – Poor diet – Population is aging (number of people older than 65 in the US is 70 million) • 75‐80% of health care spending is on chronic disease management • Huge market for new systems which improve productivity cut costs and support the shift of healthcare from hospital to the home
  4. 4. Applications • Monitoring elderlies • Monitoring patient behavior • Stress monitoring • Monitoring social activities • The Preventive Healthcare & Continuous Multiparameter Monitoring • Using IoT to monitor different therapies • Using Healthcare Monitoring to Improve Drug Discovery and Development
  5. 5. Applications • Improving processes – Finding people and equipment – Tracking hospital equipment – Patient ID and tracking – Preventing medication errors – Tracking samples (e.g. Blood samples) – Anti-counterfeit measures – Product recalls – Tagging implants and remote charging of batteries
  6. 6. Sensors and Wearables • Monitor = vital signs, falls, wandering, … • Assist = alarm, notification, graph … • Monitor More = context-aware measurement, daily activities, social interactions, … • Assist More = actuate, stimulate, transdermal medication as needed, … Now Future
  7. 7. Infrastructure sensors • Infrastructure sensors – Remote • Radars, cameras – Combined wearable and remote • Real-time location systems – Close proximity detection or measurement • Pressure mats, bed occupancy sensors • Application of infrastructure sensors – monitoring of health signs – human–environment interactions – monitoring falls – human physical activity June 12,2014 7
  8. 8. Actuators An actuator is a mechanical or electrical device for moving or controlling a mechanism, thus enabling a system to perform a physical function • Usually sensor input is used to trigger output • Several types: – Initiate movement • Leg actuator – Initiate reaction • Fall prevention due to balance loss – Treatment • Neurostimulation for pain management June 12,2014 8
  9. 9. Sensing and Form Factor • Smart-phone • Shirts • Smart watches • Smart jewelry • Arm band • Headphones • Hearing aids • Shoes • Dental appliances • Eyeglasses, …
  10. 10. Activities and Interactions RFID and Wireless Radio Frequency Identification (RFID) • Near Field Communication – Short range: couple cm • Far Field RFID – Long range: 10 m • Current applications – Detecting presence and wandering – Retirement homes • Future sensing application – Detect interactions and activities – Localize people
  11. 11. 11 RFID – Sample Tags / Readers Pallet tag, UHF (Matrics) Cardboard-case tag, MW (Matrics) Plastic crate tag, UHF (Rafsec) Sample Tags Sample Readers Stationary reader and antenna (Alien) Signpost activator (Savi) Stationary reader (Matrics) Handheld reader (Checkpoint) Doorway antenna (Checkpoint) Stationary reader and antenna (SAMSys) Stationary readers are typically deployed at warehouse portals or loading docks, on conveyor belts or forklift arms, on store shelves, check-out lanes, etc.
  12. 12. Basic types of tags • Active – Tag transmits radio signal – Battery powered memory, radio & circuitry – High Read Range (100 m) • Passive – Tag reflects radio signal from reader – Reader powered – Shorter Read Range (1 cm- 10 m) • Semi-passive – Communicates with the reader in the same way as passive – Have batteries for the electronics – Range (up to 30m) 12
  13. 13. 13 100kHz LF 125 ~134Khz 1MHz HF 13.56Mhz UHF 868 ~ 928Mhz 1GHz 2.45Ghz 5.6Ghz •Access Control •Automotive Immob •Animal-ID •Asset Tagging •Access Control •Logistics •Post •Parcel •baggage •libraries •Item •Carton •Case •Retail Transport - road pricing - train location - fleet management Under development Frequency Transport • Road tolling • Container tracking • Pallets Tag Type Selection active tags passive tags RFID Tag Spectrum
  14. 14. Remote Monitoring of Activities and Interactions - Biomedical Radar • Through-the-wall radar – Police, firefighters • Finding people under the rubble • Detection of posture and activities of people • Detection of stop-breathing events – Suicide events – Independent living • Radar sensor networks June 12,2014 14
  15. 15. Biomedical Radar - Experiments Ranging and Detection of breathing June 12,2014 15
  16. 16. Power Consumption • Battery-less sensors – Temperature sensing patch – Knitting the antenna into a sweater • Rechargeable batteries, energy harvesting – Radio-frequency – Temperature – Movement • Low power design – Communication – Processing Flexible battery
  17. 17. Data Quality and Content • Unsupervised data collection – automatically or by the patient. • Quality: How do we know that data is accurate/correct?  Quality of raw data, data aggregation data, learning algorithms  Identity and quantify noise, artifacts, activities …  Automatic signal quality analysis and mitigation • Content: When data implies emergency, No false alarms,…
  18. 18. My Research Assist Monitor Assist with neural interfaces for sensing + neuromodulation Monitor to capture daily activities and vital signs
  19. 19. Future Directions in the Field • Miniature sensors • Power harvesting • Having a unique communication system that will allow for communication between different platforms • Automated storage and security support • Automated analysis of data
  20. 20. Research Directions • Measure – Everything that we wear becomes wearable device – Everything that we hold becomes hand-held device (steering wheel, book, …) – Identifying the person holding the device – Achieving sufficient measurement quality – Achieving security and confidentiality • Assist – Intelligent actuation/stimulation in the loop – How to control its use

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