• Title/Summary/Keyword: Wheelchair System

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A Study on the Wheelchair Storage System Mounted on the Trunk of the Sedan Passenger Car (세단 승용차량 트렁크용 휠체어 수납 시스템에 관한 연구)

  • Lim, Gu;Kim, Young Jae;Kim, Yeoun Ok;Yang, Soon Yong
    • Journal of Drive and Control
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    • v.16 no.3
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    • pp.8-15
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    • 2019
  • Wheelchair users experience difficulty when using transportation. This is because wheelchair users must use transportation means together with wheelchairs. Therefore, in this paper, we developed a wheelchair storage system for passenger's car trunk. The mechanism is designed to allow a wheelchair and the device to be housed simultaneously in the narrow space of the trunk of the sedan passenger car. Additionally, this wheelchair storage system has implemented an initial load reduction mechanism that can mechanically reduce the initial load. This wheelchair storage system verified the system's operability through the production of the prototype. This system was actually installed in the trunk of the sedan passenger's car to verify the storage process. The operation and storage process of the wheelchair storage system was been perfectly verified. This wheelchair storage system will help a lot of self-driver or an assistant (female or elderly) who use wheelchairs.

Design of Ergonomic Front-Entry Sitting Toilet System for People using Wheelchairs

  • Chung, Hyun Ae;Park, Jemo;Hwang, Jung Bo;Kim, Hee Dong;Jung, Hwa Shik
    • Journal of the Ergonomics Society of Korea
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    • v.35 no.5
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    • pp.425-437
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    • 2016
  • Objective:The objective of this study is to develop an ergonomic toilet system along with constituent facilities that can be used with the front-entry sitting method when transferring from wheelchair to the toilet stool, instead of using the back-entry sitting method which is currently used. This system can offer more ease, convenience and safety for wheelchair users when using the restroom. Background: For users with disabilities, even a dedicated handicapped toilet requires maneuvering, especially when in a wheelchair. To transfer from wheelchair to the current back-entry sitting toilet, users need to get closer to the toilet and then turn or twist after erecting their body to get onto the toilet. This method induces inconvenience as well as secondary injury by falling when transferring to/from toilet. Method: To design a front-entry sitting toilet system, an ergonomics approach was applied which introduces a new design concept for people using wheelchairs. Using this toilet system, the wheelchair users don't need to turn or twist but can simply slide forward off the wheelchair directly onto the toilet stool in an easier and safer way. Results: The newly developed front-entry sitting toilet system is easier and safer for wheelchair users, and also space efficient requiring only two-thirds of the space of existing handicapped toilet. It is also usable by both individuals with disabilities and the general population. Conclusion: With the spread of the front-entry sitting toilet system developed in this study, wheelchair users can benefit from enhanced convenience and safety as well as significant restroom space savings. Additional effects can also be achieved such as improved self-esteem of people with disabilities by enabling to use the toilet on their own. Application: The newly developed front-entry sitting toilet system should enhance toilet accessibility to wheelchair users and the elderly. Introduction is needed with efforts at the national policy level and a macroscopic objective to promote the health and safety of the handicapped.

Design of Case-based Intelligent Wheelchair Monitoring System

  • Kim, Tae Yeun;Seo, Dae Woong;Bae, Sang Hyun
    • Journal of Integrative Natural Science
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    • v.10 no.3
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    • pp.162-170
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    • 2017
  • In this paper, it is aim to implement a wheelchair monitoring system that provides users with customized medical services easily in everyday life, together with mobility guarantee, which is the most basic requirement of the elderly and disabled persons with physical disabilities. The case-based intelligent wheelchair monitoring system proposed in this study is based on a case-based k-NN algorithm, which implements a system for constructing and inferring examples of various biometric and environmental information of wheelchair users as a knowledge database and a monitoring interface for wheelchair users. In order to confirm the usefulness of the case-based k-NN algorithm, the SVM algorithm showed an average accuracy of 84.2% and the average accuracy of the proposed case-based k-NN algorithm was 86.2% And showed higher performance in terms of accuracy. The system implemented in this paper has the advantage of measuring biometric information and data communication regardless of time and place and it can provide customized service of wheelchair user through user friendly interface.

Development of the Driving-will Control System for a Power-assisted Electric Wheelchair (힘 보조형 전동 휠체어를 위한 구동 의지 제어 시스템 개발)

  • Kong, Jung-Shik;Lee, Bo-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.3
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    • pp.1296-1301
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    • 2012
  • This paper deals with development of the driving-will control system in power-assisted electric wheelchair. Nowadays, population of elderly people has been increased rapidly, and also an electric wheelchair has been considered as the device for the elderly. Especially, power-assisted electric wheelchair can overcome problems that a conventional electric wheelchair holds, such as lack of movement of wheelchair user. In this paper, we propose the sensors system to measure the driving-will force and perform the control action for a power-assisted electric wheelchair. And motion performance of the proposed system is verified through the experiment.

The Safety Assessment of Wheelchair Occupants in Road Passenger Vehicles with the Frontal Crash: a Computer Simulation (시뮬레이션 기법을 이용한 차량내 전동휠체어 탑승자의 전방 충돌시 안전에 관한 연구)

  • Lee, Young-Shin;Lee, Ki-Du;Lim, Hyun Kyoon
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.29 no.11 s.242
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    • pp.1518-1526
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    • 2005
  • With increasing need of transportation services for people with disabilities and the aged, wheelchairs are used as their assistive devices to participate in daily and recreational activities and as seats of motor vehicle. However, as wheelchairs are primarily designed fer mobility assistive devices, not for vehicle seats, wheelchair users may experience serious injury when they meet car crashes. To date, neither engineering guidance for a wheelchair mounting system on the vehicle floor nor safety assessment analysis by a car crash has been studied for the domestic users. In this paper, in accordance with the ANSVRESNA WC-19, a fixed vehicle mounted wheelchair occupant restraint system (FWORS), wheelchair integrated restraint system (WIRS), and wheelchair integrated x-bend restraint system (WIXRS) subjected to frontal impact (20 g, 48 U) were analyzed using compute. simulations for domestic users. We present surrogate wheelchair occupant safety by head injury criteria (HIC), motion criteria (MC), and combined injury criteria (CIC).

A Study on the Upper Garment Sizing System for Disabled Men using Wheelchair - Compared study with the Sizing System of Germany - (휠체어를 사용하는 남성 장애인의 상의 사이즈체계에 관한 연구 - 독일의 휠체어 장애인 사이즈체계와 비교연구 -)

  • Park, Kwang-Ae;Sung, Ok-Jin
    • Fashion & Textile Research Journal
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    • v.12 no.4
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    • pp.477-486
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    • 2010
  • This study aims at establishing a sizing system required for producing ready-made clothes which can fit the body shape of disabled men using wheelchair. It measured the bodies of 178 adult men using wheelchair and compared the sizing system of German adult men using wheelchair (1984) with KS system(KS K0050, 2004) in order to establish standards of the sizing system. AS a result, in terms of classification of body shapes, KS system cover more types of disabled men's body shapes and especially, A types (Drop 15.6) showed the widest coverage with 32%. In classification of heights, the widest range of height was 170 cm, and Korean men's four sizes between 158 cm and 176 cm covers 88.2% of disabled men's body shape. For chest size, 91.1% of disabled men's chest sizes were included in seven sizes, which are 4 cm intervals between 88 cm and 112 cm with 100 cm standard. In consideration of the ranges of height and chest, the general sizes (A types; 11 sizes, B types; 3 sizes, Y types; 5 sizes) are selected to present the standardized measurements. Basic parts of the upper garment sizing system for disabled men using wheelchair were height-chest-waist size.

A Study on Proposition of The Assisting Mechanism for Wheelchair Transfer for Car (차량용 휠체어 이송을 위한 보조메커니즘의 제안에 관한 연구)

  • Lim, K.;Kim, Y.S.;Yang, S.Y.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.8 no.4
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    • pp.251-258
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    • 2014
  • A wheelchair is a typical mobility aid for the physically disabled or the old and the weak, and is the most commonly used rehabilitation aid. In general, most of users of manual wheelchair have difficulty though vocational rehabilitation and independent living is possible. The reason is that long-distance movement is always accompanied with wheelchair transfer problem because a wheelchair is used as direct means of transport. Hence, the wheelchair transfer problem should be first solved in order that a wheelchair user can independently live. Therefore, this study examined and analyzed the domestic and overseas launched products and patented technologies of wheelchair transfer system for vehicle, and proposed a wheelchair transfer mechanism of a new system for vehicle. This study proposed a wheelchair transfer mechanism for vehicle in order to remove the disadvantage of wheelchair transfer system for vehicle to support the conventional wheelchair user's movement, and in order to conform with the structure of domestic welfare vehicle for the disabled. Because a difference between storage space installed in the roof of vehicle and storage space for leisure, which is generally utilized, gets to disappear by applying this proposed mechanism, popularity among users can be increased. And storage space that has become smaller like this will be capable of decreasing the disadvantage of air resistance in traveling. Besides, because of getting to conform with the structure of welfare vehicle, restrictions on the application range will disappear from small sedan to SUV. Therefore, users can have more choices.

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Development of the Foldable Manual/Power Hybrid Wheelchair ($\cdot$전동 복합기능의 접이식 휠체어 개발)

  • Choi Young Chul;Rhee Kun Min;Choi Hwa Soon;Seo Young Taek
    • Journal of the Korean Society for Precision Engineering
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    • v.23 no.2 s.179
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    • pp.172-180
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    • 2006
  • Although there existed many types of manual/power hybrid wheelchairs, their use was not widespread because of their inconvenience in converting drive system and in folding frames. To carry a wheelchair in the car or to convert driving methods, some hard work of disassembling or exchanging wheels was required for most of currently available hybrid wheelchairs. In this study, the standard foldable manual wheelchair was reformed to a power wheelchair by installing the newly developed Axial Flux Permanent Magnet(AFPM) type of brush less direct current(BLDC) motor on each rear hub of wheelchair. This wheelchair could be driven by manual or electric power without exchanging. wheels, thus no additional work was needed for carriage or for power conversion. The developed wheelchair was evaluated for durability, stability, maneuverability, cost, and reliability in accordance with the Korean standards. The results indicated that the developed hybrid wheelchair was good enough for commercialization comparing to other imported wheelchairs.

Research of Customized Electric Wheelchair Control System using NFC on Mobile Device Environment (모바일 디바이스 환경 기반의 NFC를 이용한 사용자 맞춤형 전동 휠체어 제어 시스템 연구)

  • Park, Sanghyun;Kim, Jinsul
    • Smart Media Journal
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    • v.4 no.2
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    • pp.17-25
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    • 2015
  • In this paper proposes an idea for using NFC(Near Field Communication) on smalt mobile devices, you can easily control the electric wheelchair system. In this system with previous researches controlled a power wheelchair in a mobile device using Bluetooth communication, the board communicates with the integrated control of the wheelchair. With smart mobile devices, the wheelchair control board integrating the signal generated by checking real time so that the user can easily monitor the state of the wheelchair. Users are using smalt mobile devices, the wheelchair can be controlled easily, and the setting at any time according to the state of the individual and can be used. HEX format control is directly in hardware, allowing analysis was read, the user settings are typically used to match cards which support NFC technology such as bus card for registration, storing the selected information and enable read and were applicable. By applying this system, wheelchairs oriented aids disabled and older people able to access to provide with stability.