Development of a smart wheelchair for people with disabilities

Leaman, Jesse; La, Hung Manh; Nguyen, Luan Van

doi:10.1109/mfi.2016.7849501

Cited by 19 publications

(16 citation statements)

References 12 publications

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“…Moreover, from an engineering point of view, studies on intelligent power wheelchairs (iChairs) and innovative wheelchair service provision models using 3D printing technology have also been reported [ 32 , 33 ]. In addition, customized seat research using 3D printing technology is also possible.…”

Section: Discussionmentioning

confidence: 99%

Customized Power Wheelchair Joysticks Made by Three-Dimensional Printing Technology: A Pilot Study on the Environmental Adaptation Effects for Severe Quadriplegia

Shin

Ahn

Lee

et al. 2021

IJERPH

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Background: Power wheelchair joysticks are often available as standardized ready-made products for patients with severe hand dysfunction. However, standardized joysticks have limitations in accommodating the individualized features of hand dysfunctions. Three-dimensional (3D) printing technology has facilitated active research on the development of joysticks that can overcome such limitations. Methods: Four subjects participated in the study to evaluate driving abilities and satisfaction after using the customized joystick for two weeks. Modified power-mobility indoor driving assessment (PIDA), National Aeronautics and Space Administration task load index (NASA-TLX), and psychosocial impact of assistive devices scale (PIADS; Korean version) were employed for evaluation. Results: In patients 1–3, the modified PIDA scores had the highest values in the pre-test and post-test. In patient 4, the modified PIDA score had a higher value in the post-test (mean value = 4) compared to the pre-test (mean value = 3.33). In all patients, the modified PIDA time was lower in the post-test compared to the pre-test. The NASA-TLX and PIADS values indicate that greater satisfaction was achieved through the usage of customized joysticks in the post-test. Conclusions: All patients can improve their power wheelchair driving abilities and achieve greater satisfaction. Clinical Relevance: Three-dimensional printed customized power wheelchair joysticks can offer enhanced driving abilities and satisfaction to patients with limited hand function owing to severe spinal cord injury.

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Section: Discussionmentioning

confidence: 99%

Customized Power Wheelchair Joysticks Made by Three-Dimensional Printing Technology: A Pilot Study on the Environmental Adaptation Effects for Severe Quadriplegia

Shin

Ahn

Lee

et al. 2021

IJERPH

View full text Add to dashboard Cite

show abstract

“…By 2010, however the system had grown too large, and heavy for the wheelchair base, and had become difficult to maintain. The upgrade of "Gryphon Shield" is the iChair presented in [26], [27] where we take advantage of a head tracking mouse [28] and a Mount-n-Mover [29].…”

Section: Past: the Power Wheelchairmentioning

confidence: 99%

A Comprehensive Review of Smart Wheelchairs: Past, Present, and Future

Leaman

2017

IEEE Trans. Human-Mach. Syst.

Self Cite

183

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Abstract-A smart wheelchair (SW) is a power wheelchair (PW) to which computers, sensors, and assistive technology are attached. In the past decade, there has been little effort to provide a systematic review of SW research. This paper aims to provide a complete state-of-the-art overview of SW research trends. We expect that the information gathered in this study will enhance awareness of the status of contemporary PW as well as SW technology, and increase the functional mobility of people who use PWs. We systematically present the international SW research effort, starting with an introduction to power wheelchairs and the communities they serve. Then we discuss in detail the SW and associated technological innovations with an emphasis on the most researched areas, generating the most interest for future research and development. We conclude with our vision for the future of SW research and how to best serve people with all types of disabilities.

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“…New sensors have recently emerged. Among them we can mention LiDAR, single fixed beam, multiple fixed beams or rotating lasers in order to detect obstacles and determine the profile of the environment of the electric wheelchair, notably in the work of Grewal [ 12 ], Arnay [ 13 ] or the SmartWheelchair project [ 14 ] and the iChair project [ 15 , 16 ]. Özcelikörs [ 17 ] and Mittal [ 18 ] used the Kinect camera system in order to obtain a 3D map of the frontal obstacles, as well as their size and position.…”

Section: Introductionmentioning

confidence: 99%

Development of a New Negative Obstacle Sensor for Augmented Electric Wheelchair

Favey

Farcy

Donnez

et al. 2021

Sensors

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Due to pathologies or age-related problems, in some disabled people, motor impairment is associated with cognitive and/or visual impairments. This combination of limitations unfortunately leads to an inability to move around independently. Indeed, their situation does not allow them to use a conventional electric wheelchair, for safety reasons, and for the moment there is no other technological solution providing safe movement capacity. This lack of access to an autonomous travel solution has the consequence of weakening the intellectual, personal, social, cultural and moral development, as well as the life expectancy, of the people concerned. In this context, our team is working on the development of an optoelectronic system that secures the displacement of electric wheelchairs. This is a large project that requires the development of several functionalities such as: the anti-collision of the wheelchair with its environment, the prevention of falls from the wheelchair on uneven levels, and the adaptation of the system mechanically and electronically to the majority of commercially available electric wheelchair models, among others. In this article, we introduce our solution for detecting dangerous height differences, also called “negative obstacles”, through the creation of a dedicated sensor. This sensor works by optical triangulation and can embed several laser beams in order to extend its detection zone. It has the particularity of being robust in direct sunlight and rain and has a sufficiently high measurement rate to be suitable for the displacement of electric wheelchairs. We develop an adapted algorithm, and point out compromises, in particular between the orientation of the laser beams and the maximal speed of the wheelchair.

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Development of a smart wheelchair for people with disabilities

Cited by 19 publications

References 12 publications

Customized Power Wheelchair Joysticks Made by Three-Dimensional Printing Technology: A Pilot Study on the Environmental Adaptation Effects for Severe Quadriplegia

Customized Power Wheelchair Joysticks Made by Three-Dimensional Printing Technology: A Pilot Study on the Environmental Adaptation Effects for Severe Quadriplegia

A Comprehensive Review of Smart Wheelchairs: Past, Present, and Future

Development of a New Negative Obstacle Sensor for Augmented Electric Wheelchair

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