Analysis of reaction times and time-delays introduced into an intelligent HCI for a smart wheelchair

David Sanders, Malik Haddad, Giles Tewkesbury, Nils Bausch, Ian Rogers, Ya Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Time-delays are introduced to an intelligent HCI for an intelligent wheelchair and the effects of time-delays are investigated. The ability for wheelchair users to complete tasks is considered. Two systems and two different ways for drivers to interact with their wheelchairs are considered in various situations. Wheelchair drivers were scrutinized while they completed a task with their wheelchair. Time-delay was introduced and wheelchair users undertook tests with and without sensors and a computer system connected in order to assist the driver. As the delay was extended then more failures were recorded. When the time-delay was longer or when the wheelchair was moving through more complex situations then users did better when assisted by a sensor system. The effect of introducing a delay between a joystick and a motor controller is investigated. It is suggested that in simpler situations with a shorter time-delay then little sensor assistance was required but more assistance was needed in more complicated situations or when the time-delay was longer. So it might be better to vary the sensor support provided depending on the difficulties being encountered.
Original languageEnglish
Title of host publication2020 IEEE 10th International Conference on Intelligent Systems (IS)
EditorsVassil Sgurev, Vladimir Jotsov, Rudolf Kruse, Mincho Hadjiski
PublisherIEEE
Pages217-222
Number of pages6
ISBN (Electronic)978-1-7281-5456-5
ISBN (Print)978-1-7281-5457-2
DOIs
Publication statusPublished - 18 Sep 2020
Event2020 IEEE 10th International Conference on Intelligent Systems - Varna, Bulgaria
Duration: 28 Aug 202030 Aug 2020

Publication series

NameIEEE IS Proceedings Series
PublisherIEEE
ISSN (Print)1541-1672

Conference

Conference2020 IEEE 10th International Conference on Intelligent Systems
Country/TerritoryBulgaria
CityVarna
Period28/08/2030/08/20

Keywords

  • intelligent
  • sensor
  • sonic
  • Time-delay
  • wheelchair
  • RCUK
  • EPSRC
  • EP/S005927/1

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