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DBI World Conference 2019 - Converting vibrotactile information in daily practice of people with deafblindness


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DBI World Conference 2019
Technology stream: Concurrent session 10C
Presenter: Eric van Heuvelen
Topic: Converting vibrotactile information in daily practice of people with deafblindness

Published in: Healthcare
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DBI World Conference 2019 - Converting vibrotactile information in daily practice of people with deafblindness

  1. 1. Eric van Heuvelen assistive technology specialist Bartiméus, the Netherlands Converting vibrotactile information in daily practice for people with deafblindness
  2. 2. no conflicts of interest to disclose
  3. 3. Centre of Expertise B: support assisted livingeducation
  4. 4. Some context: • one of two centres of expertise • 17 million inhabitants • 350.000 visually impaired • 80.000 – 85.000 people with deafblindness • 2.000 people congenital • 1.500 acquired • Approxmately 80.000 elderly
  5. 5. Existing adapted tools
  6. 6. FabLabsmart technology for people with a disability Bartiméus FabLab
  7. 7. Mission
  8. 8. Centre of expertise on deafblindness
  9. 9. Dreaming about an accessible life Brainstorming sessions with people with deafblindness
  10. 10. • one tool • different devices • signaling as warning, attention, recognition One of the main conclusions :
  11. 11. • who is at the door? But also: • when someone is approaching you in the garden • smoke detection • a smart status detector: the status of household electrical appliances e.g. whether a coffee maker is switched on or off Developing the “Smart doorbell”
  12. 12. Prototype
  13. 13. Evaluation • evaluation of prototype with people with deafblindness • options for improvement were discussed
  14. 14. • use of regular consumer technology (smartwatch) • integration of more devices • pre-alert, color and text First results
  15. 15. Conclusion so far….. Worked well in lab conditions, but……. Problems: • using own wifi network to set up • small range • poor reliabilty • poor wifi strenght • not easy to start up after break down
  16. 16. Follow up Further development by Bartiméus
  17. 17. 1. explore the perception of vibrotactile patterns (tactons) with people with deafblindness (master thesis) 2. user needs to work with mainstream (consumer) technology Conditions
  18. 18. Research • what kind of vibrotactile patterns should be used • how many different tactons can be distinguished • will these patterns be recognized when a user is going about his day doing regular daily activities?
  19. 19. • can tactons be accurately detected and linked to a specific meaning when presented on the wrist? • can these tactons also be recognized when participants are engaged in cognitive and distracting activities? • the effect of long-term memory on tacton detection and recognition in a call-back testing setting Current Research
  20. 20. Tacton parameters • amplitude • frequency • timing
  21. 21. Tactons presented to the wrist have shown to be effective in providing information to people with deafblindness. Research result
  22. 22. Let‘s get practical!
  23. 23. • smart remote control • connects to all your devices • control device with your voice or smartphone Homey
  24. 24. • Wi-Fi, Bluetooth, Infra-red, Zigbee, NFC/NRF, 433 MHz and Z-Wave • Homey app: to create scenes and set up responses to events • developers can create own applications (API) • open platform (easily integrated with other solutions) Homey
  25. 25. Homey and the smartwatch
  26. 26. • building an application • smartwatch app • using API Further development by Bartiméus
  27. 27. Testing • testing with at least 5 people with deafblindness at their home • testing is currently in progress.
  28. 28. Results 1: • male, 65 years old, blind, hard of hearing • hearing aid • strongly focused on hearing • prefers short vibrations • vibrations too weak, other wearable? • nice addition: high user-friendliness
  29. 29. Results 2: • female, 70 years old, hard of hearing • tunnel vision • vibrations were strong enough, also during activities • increase of sense of security
  30. 30. Feedback • watersensor: watch vibrates as long as the tap is running • possible feedback to doorbel (i’m coming!) • facial recognition
  31. 31. How to continue… Connect more devices Integrate in daily practice Magic 7!
  32. 32. Final conlusion The projects shows: Mainstream technology can cause more safety and self-sufficiency to those living with deafblindness. Tactile information is key.
  33. 33. Questions? Eric van Heuvelen Bartiméus, the Netherlands