Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys

This paper introduces a novel device based on a tactile interface to replace the attendant joystick in electric wheelchairs. It can also be used in other vehicles such as shopping trolleys. Its use allows intuitive driving that requires little or no training, so its usability is high. This is achiev...

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Main Authors: Andrés Trujillo-León, Fernando Vidal-Verdú
Format: Article
Language:English
Published: MDPI AG 2014-02-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/2/2644
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author Andrés Trujillo-León
Fernando Vidal-Verdú
author_facet Andrés Trujillo-León
Fernando Vidal-Verdú
author_sort Andrés Trujillo-León
collection DOAJ
description This paper introduces a novel device based on a tactile interface to replace the attendant joystick in electric wheelchairs. It can also be used in other vehicles such as shopping trolleys. Its use allows intuitive driving that requires little or no training, so its usability is high. This is achieved by a tactile sensor located on the handlebar of the chair or trolley and the processing of the information provided by it. When the user interacts with the handle of the chair or trolley, he or she exerts a pressure pattern that depends on the intention to accelerate, brake or turn to the left or right. The electronics within the device then perform the signal conditioning and processing of the information received, identifying the intention of the user on the basis of this pattern using an algorithm, and translating it into control signals for the control module of the wheelchair. These signals are equivalent to those provided by a joystick. This proposal aims to help disabled people and their attendees and prolong the personal autonomy in a context of aging populations.
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spelling doaj.art-0b29a03b83a24bf9b0cd52c6911209bb2022-12-22T03:45:30ZengMDPI AGSensors1424-82202014-02-011422644266210.3390/s140202644s140202644Driving Interface Based on Tactile Sensors for Electric Wheelchairs or TrolleysAndrés Trujillo-León0Fernando Vidal-Verdú1Department of Electronics, University of Málaga, Málaga 29071, SpainDepartment of Electronics, University of Málaga, Biomedical Research Institute of Málaga, Málaga 29071, SpainThis paper introduces a novel device based on a tactile interface to replace the attendant joystick in electric wheelchairs. It can also be used in other vehicles such as shopping trolleys. Its use allows intuitive driving that requires little or no training, so its usability is high. This is achieved by a tactile sensor located on the handlebar of the chair or trolley and the processing of the information provided by it. When the user interacts with the handle of the chair or trolley, he or she exerts a pressure pattern that depends on the intention to accelerate, brake or turn to the left or right. The electronics within the device then perform the signal conditioning and processing of the information received, identifying the intention of the user on the basis of this pattern using an algorithm, and translating it into control signals for the control module of the wheelchair. These signals are equivalent to those provided by a joystick. This proposal aims to help disabled people and their attendees and prolong the personal autonomy in a context of aging populations.http://www.mdpi.com/1424-8220/14/2/2644tactile sensorsassistive technologiespower wheelchairelectric trolley
spellingShingle Andrés Trujillo-León
Fernando Vidal-Verdú
Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
Sensors
tactile sensors
assistive technologies
power wheelchair
electric trolley
title Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
title_full Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
title_fullStr Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
title_full_unstemmed Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
title_short Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
title_sort driving interface based on tactile sensors for electric wheelchairs or trolleys
topic tactile sensors
assistive technologies
power wheelchair
electric trolley
url http://www.mdpi.com/1424-8220/14/2/2644
work_keys_str_mv AT andrestrujilloleon drivinginterfacebasedontactilesensorsforelectricwheelchairsortrolleys
AT fernandovidalverdu drivinginterfacebasedontactilesensorsforelectricwheelchairsortrolleys