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Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys
Department of Electronics, University of Málaga, Málaga 29071, Spain
Department of Electronics, University of Málaga, Biomedical Research Institute of Málaga, Málaga 29071, Spain
* Author to whom correspondence should be addressed.
Received: 28 December 2013; in revised form: 15 January 2014 / Accepted: 17 January 2014 / Published: 10 February 2014
Abstract: 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.
Keywords: tactile sensors; assistive technologies; power wheelchair; electric trolley
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MDPI and ACS Style
Trujillo-León, A.; Vidal-Verdú, F. Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys. Sensors 2014, 14, 2644-2662.
Trujillo-León A, Vidal-Verdú F. Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys. Sensors. 2014; 14(2):2644-2662.
Trujillo-León, Andrés; Vidal-Verdú, Fernando. 2014. "Driving Interface Based on Tactile Sensors for Electric Wheelchairs or Trolleys." Sensors 14, no. 2: 2644-2662.