Intelligent HMI and control for steering a powered wheelchair using a Raspberry Pi microcomputer

Malik Haddad, David Sanders, Favour Chidinma Ikwan, Mohamad Thabet, Martin Clifford Langner, Alexander Gegov

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

217 Downloads (Pure)

Abstract

This paper presents a new technique for controlling powered wheelchairs. A Raspberry Pi microcomputer is used to assist in controlling direction. A Raspberry Pi is inserted between user input switches and powered wheelchair motors to create a more intelligent Human Machine Interface (HMI). An electronic circuit is created that consists of an ultrasonic sensor array and a set of control relays. The sensors provided information about obstacles surrounding the wheelchair. Python programming language was used to create a code that digitized the output from the user switches and assessed information provided by the ultrasonic sensor array. The code was loaded onto a Raspberry Pi and the Raspberry Pi controlled voltages supplied to the motors. Tests were conducted and results showed that the new system can successfully assist a wheelchair user in avoiding obstacles. The system can be used as an intelligent interface between any input device or sensor system and wheelchair motors.
Original languageEnglish
Title of host publication2020 IEEE 10th International Conference on Intelligent Systems (IS)
PublisherIEEE
Pages223-228
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

  • RCUK
  • EPSRC
  • EP/S005927/1

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