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

Haddad, Malik, Sanders, David, Ikwan, Favour, Thabet, Mohamad, Langner, Martin and Gegov, Alexander (2020) Intelligent HMI and control for steering a powered wheelchair using a Raspberry Pi microcomputer. In: 2020 IEEE 10th International Conference on Intelligent Systems (IS).

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.

Item Type:	Conference or Workshop Item (Paper)
Disciplines:	Computing, Maths, Engineering and Natural Sciences > Computer Science Computing, Maths, Engineering and Natural Sciences > Data Science & AI
Depositing User:	Malik Haddad
Date Deposited:	21 Dec 2023 11:43
Last Modified:	21 Dec 2023 11:43
URI:	https://nul.repository.guildhe.ac.uk/id/eprint/1413

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