• Title/Summary/Keyword: wheelchair users

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A Study on Improvement of Ramp Installation Standard for BF Certification (BF 인증을 위한 경사로 설치기준 개선에 대한 연구)

  • Shin, Dong Hong
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.26 no.2
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    • pp.31-38
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    • 2020
  • Purpose: The ramp is an important facility for the barrier free access and vertical circulation of users of various buildings, including users of walker, wheelchair users, stroller users, and baggage carriers. The installation standards for ramps in Korea have various problems during construction and BF certification. It is necessary to improve the criteria for ensuring practical mobility and safety. Method: Korean standard, International Standard(ISO 21542, 2011), German Standard(DIN 18040-1, 2010), Austrian Standard(OENORM B 1600, 2017), Swiss Standard(Norm SIA 500, 2009), Canadian Standard(Building Standards Guide, 2017), American Standard(ADA Standards, 2010) were investigated and analyzed. A comprehensive improvement of the ramp installation standards is proposed. Results: The ramp is a necessary facility for the barrier free access and vertical circulation of the disabled. It shall be installed with comprehensive consideration of the appropriate slope of the ramp, the distance of the continuous slope, the handle and upstand for pedestrian safety. In order to improve convenience, setting the proper slope and limiting the length of the slope are very important, and improvements are required to the levels presented by international and foreign standards. The unclear standards of Korean law and BF certification standards should be clearly improved so as not to be misinterpreted in construction and Barrier Free Certification. Implication: International and foreign standards should be reviewed to ensure practical mobility and safety. And comprehensive improvement measures should be presented through continuous research.

The Travel Infomration System for Wheelchair Users in Seoul (휠체어 이용자를 위한 서울 여행정보 제공 시스템)

  • Choi, Sangwon;Lee, Kyuri;Ryu, Dami;Chung, Yeram;Moon, Yoo-Jin
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2020.01a
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    • pp.287-288
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    • 2020
  • 본 논문에서는 휠체어 이용자들에게 서울 여행 시 필요한 정보를 제공하는 시스템을 구현한다. 이 시스템은 휠체어 이용 시 용이한 대중교통인 지하철역의 편의시설 및 서울 여행지들에 존재하는 부가시설들의 위치에 대한 정보를 제공한다. 방대한 여행정보가 제공되는 상황에서도 상대적으로 이를 누리지 못하는 장애인들에게 본 논문은 여행 및 이동에 필요한 정보를 제공할 수 있다는 특징을 가지고 있다.

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Development of the weighing scale device based on wheelchair for health-monitoring (Health-monitoring을 위한 휠체어 기반 체중측정 장치 개발)

  • Kang, Dong-Won;Kim, Kyoung-Myoung;Jang, Kyung-Bae
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1976_1977
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    • 2009
  • The number and percentage of people in need of a wheelchair are increasing every year, both manual and power wheelchair users express an interest in monitoring their weight. However, frequent measurements are not possible when relying on hospital scales and models designed for home use are expensive. So the goals of this study became to create a product that's relatively inexpensive, portable, and precise, which means varying little between measurements. Secondary goals were ease of use, compatibility with different kinds of wheelchairs, and accuracy, which means achieving proximity to an actual value and isn't as important when trying to monitor increases or decreases in weight.

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Development of Integrated Computer Interface for Power Wheelchair User (휠체어 사용자를 위한 통합형 컴퓨터 입력장치의 개발)

  • Kim, Chang-Geol;Song, Byung-Seop
    • Journal of Biomedical Engineering Research
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    • v.31 no.3
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    • pp.251-257
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    • 2010
  • This paper reports a noble instrument that helps physically disabled people to access computers. There have been numerous attempts to develop such a methodology, but most of them require an additional space for workstation often including access program installation. The additional space also needs to be carefully designed to consider each specific disabled area. This study aims to develop a system that removes the spacial limitation by putting the integrated computer interface using the wheelchair controller. The implementation of the computer workstation is performed by utilizing an USB interface. The developed equipment will take an important role to support various social lives for the users and eventually to improve their quality of life.

Effects of Manual Wheelchairs' Transmission on the Propulsion Motion (수동휠체어의 변속 기능이 추진 동작에 미치는 영향)

  • Shin, Eung-Soo
    • Korean Journal of Applied Biomechanics
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    • v.17 no.3
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    • pp.225-232
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    • 2007
  • This work intends to investigate the effects of shift characteristics on the propulsion performance of a manual wheelchair with an automatic transmission. A planetary gear train is employed to generate a two-stage shift automatically, based on the distance traveled from rest. Motion analysis has been performed for measuring kinematic properties of the arm and then the inverse dynamics has been applied for estimating joint forces/torques. Then, a parametric study has been performed to find a set of the shift ratios and the shift intervals for optimizing propulsion performance. Results show that the propulsion performance is closely related to the shift condition. It is found that a short shift interval is desirable for a short distance propulsion. However, an optimum shift interval for a long distance propulsion is inversely proportional to the shift ratio approximately. Consequently, the automatic transmission can greatly lower the joint loadings by the speed reduction, which eventually contribute to prevent joint injuries of wheelchair users.

Development of a Remote Wheelchair Accessibility Assessment System Using Virtualized Reality Technology (가상현실기술을 이용한 원격휠체어접근성평가시스템의 개발)

  • Kim, Jong-Bae
    • 한국HCI학회:학술대회논문집
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    • 2006.02a
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    • pp.33-39
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    • 2006
  • Home modification has come to be recognized as an important intervention strategy to manage health care conditions, maintain or improve functioning, ensure safety, and reduce the wheelchair user's dependency on others. However, the availability of skilled professionals with experience in home modifications for accessibility is limited. A system that enables accurate remote assessments would be an important tool to improve our ability to perform home assessments more easily and at decreased cost. A Remote Wheelchair Accessibility Assessment System (RWAAS) using Virtualized Reality(VR) technology was developed that enabled clinicians to assess the wheelchair accessibility of users' built environments from a remote location. Characteristics of the camera and 3D reconstruction program chosen for the system significantly affect its overall reliability. In this study, we performed two reliability analyses on the hardware and software components: 1) Verification that commercial software can construct sufficiently accurate 3D models by analyzing the accuracy of dimensional measurements in a virtualized environment; 2) comparison of dimensional measurements with four camera settings. Based on these two analyses, we were able to specify a consumer level digital camera and the Photomodeler Pro software for this system. And we then tested the feasibility of the selected software and hardware in an actual environment. Lastly, A field evaluation was performed to test whether this new system is comparable to the traditional method of accessibility assessment to evaluate its ability to assess the accessibility of a wheelchair user's typical built environment. The results of field trials showed high congruence between the assessments by two methods. Findings suggested that the RWAAS assessments have the potential to enable specialists to assess potential accessibility problems in built environments regardless of the location of the client, home, or specialist.

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Effects of Smart Home on Performance and Satisfaction of Activities of Daily Living of Wheelchair Users (스마트 홈이 휠체어를 사용하는 장애인의 일상생활활동 수행도와 만족도에 미치는 영향)

  • Woo, Ji-Hee;Kim, Jeong-Hyun;Kim, Jongbae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.7
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    • pp.242-248
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    • 2019
  • This study was conducted to examine the effects of a smart home (electronic control unit, ECU) on the performance and satisfaction of activities of daily living of wheelchair users. A total of 15 wheelchair users (10 patients with spinal cord injury and 5 patients with stroke) were investigated. Smart homes were equipped with ECU technology, which consisted of automation of furniture and products. The products and facilities were integrated and controlled by a smart device or voice. Performance and satisfaction of activities of daily living were measured by the Canadian Occupational Performance Measure (COPM) before and after residence in a smart home. All participants showed a higher COPM (performance score ${\geq}3$, satisfaction score ${\geq}4$) during residence in a smart home compared to residence in the current home. In addition, the COPM scores differed significantly before and after residence in a smart home. These results provide evidence of the applicability of smart homes based on high technology. However, additional studies of more smart home participants should be conducted to improve the quality of the results.

Optimal Power Maintain of Electric Wheelchair by using Applying Complementary Filter on the Smart Control System (최적의 전동휠체어 시트 평형유지를 위한 상호보안 필터 기반의 스마트 제어 시스템 연구)

  • Park, Sanghyun;Kim, Jinsul
    • Journal of Digital Contents Society
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    • v.16 no.3
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    • pp.355-363
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    • 2015
  • In this paper, we propose a system for controlling the seat of the electric wheelchair depending on the slope of the terrain in real time by using the ATmega smart control based on the board. Smart control board includes a gyro sensor, an acceleration sensor and Tilt sensor, when the electric wheelchairs pass slope of the terrain, they use three sensors to identify terrain configuration in real time. We also applied the Complementary Filter in the gyro sensor and acceleration sensor, so the electric wheelchairs know the exact terrain by solving the interference during the movement. Based on this, the noise power wheelchair due to the movement will be reduced, the seat continues reliably movement without being vibration. In this paper, providing an application on the smart phone platform for the convenience of users who are not familiar with how to use electric wheelchairs, they can easily control wheelchairs. Control platform of the smart phone is able to monitor the electric wheelchair in real-time, with regard to pressure prevention, help the slope of the seat to be arbitrarily controlled.

Experimental Study on the Determination of Slope and Height of Curbs Considering the VRUs (교통약자를 고려한 보도의 경사도와 높이 결정을 위한 실험연구)

  • Kim, Hyunjin;Lim, Joonbeom;Choe, Byongho;Oh, Cheol;Kang, Inhyeng
    • International Journal of Highway Engineering
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    • v.20 no.1
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    • pp.107-115
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    • 2018
  • PURPOSES : As the population of the mobility handicapped, who are classified as the disabled, the elderly, pregnant women, children, etc., has increased, the voices for guaranteeing their rights have been increasing as well. Thus, the design manuals for roads and sidewalks for the mobility handicapped were developed by the local government, such as the Ministry of Land, Transport, and Tourism, in Seoul City. However, according to the 2013 survey results of the Seoul Metropolitan City, the mobility handicapped still feel uncomfortable with the sidewalks, and particularly request for the improvement of the step and slope of the sidewalk curb. Therefore, in this study, we conducted an empirical experimental study to determine the slope of the sidewalk curb and height of the steps considering the mobility handicapped and analyzed whether there is a statistically significant difference. METHODS : The methodology of this study is an empirical experimental one. In the study, five non-disabled people, 10 wheelchair users, and 10 eye patch and stick users walked about 2-3 min on the sidewalk plates of the sloped type (0%, 5%, 6.3%, 8.3%) and stepped type (0 cm, 1 cm, 3 cm, 6 cm), and their human physiological responses, such as the skin temperature, volume of perspiration on forehead and chest, and heart rate, were measured and recorded. After combining the data, we conducted a nonparametric test, ANOVA, or t-test to determine whether there was a statistically significant difference according to each slope and step type. RESULTS : It was found that for the non-disabled, there was no significant difference in human physiological responses according to the slope and steps of the sidewalk. It can be said that the non-disabled do not feel much physiological discomfort while walking. In the case of the sloped sidewalk plate, the heart rate of the wheel chair users increased when the slope was 6.3%. In the case of the eye patch and stick users, the volume of perspiration on the chest increased at a slope of 5.0%. In general, it is judged that a sidewalk with a slope that is less than 5% does not cause a change in the physiological response. In the case of a stepped sidewalk plate, when 0 cm, 1 cm, and 3 cm were compared for wheelchair users, the amount of forehead perspiration increased from 1 cm. Meanwhile, in the case of the eye patch and stick users, when 0 cm and 6 cm were compared, the amount of perspiration on the forehead and chest as well as the heart rate all increased at 6 cm. Taken together, in the case of wheelchair users, a difference was shown when the height of the step of the sidewalk plate was 1 cm, suggesting that installing it at 0 cm does not cause any physiological discomfort. Moreover, in the case of the eye patch and stick users, when comparing only 0 cm and 6 cm, 0 cm was considered to be suitable, as there was a difference in physiological response at 6 cm. CONCLUSIONS : In this study, we set the human physiological responses such as chest skin temperature, amount of perspiration, and heart rate as evaluation items, and our study was considered to be a meaningful experiment that targeted wheelchair users as well as eye patch and stick users. The validity of the evaluation items was confirmed, as the results of human physiological responses were significant. As for the sidewalk design, according to the experiment result, it is considered that differential application should be implemented according to the type of mobility handicap, rather than uniformly applying a sidewalk step of 2 cm and sidewalk slope of 1/25, which are the current legal standards.

An Investigation of Caretakers Needs for Changes in Electric Wheelchairs (간병인의 전동휠체어 사용에 대한 만족도 조사)

  • Lee, Jung Ah;Lee, Bum-Suk;Choi, Hyun;Yoo, Sung Moon;Yang, Sung Pil;Bae, Jae Hyuk;Pak, Han Ram
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.10 no.3
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    • pp.177-184
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    • 2016
  • The purpose of this study was to investigate caretakers' demands and request in electric wheelchairs. The survey included the usability questionnaire (safety, operability, satisfactions) which were selected by opinions of caretakers and specialist of rehabilitation for electric wheelchairs. The survey also included questionnaires consisting of such questions as to demographic information, care experience, care time, and care burden, and demand for folding electric wheelchairs. Participants were fifty caretakers of electric wheelchair users. Caretakers' average age was 54.54years, and the average duration of their care experience was 80.98 months with average care time 9.80 hours per day. In safety and operability, most of participants were mostly satisfied. However, in satisfaction of weight and clean of electric wheelchairs was dissatisfied. They reported that the biggest problem of electric wheelchairs were too heav and difficult to control and that the greatest difficulty in helping electric wheelchair users was helping them with transfer to and from the wheelchair. They also need their prefer to develop folding electric wheelchairs. In this study, caretakers emphasized necessity of development light, easy to storage and clean electric wheelchairs. In conclusion, it is required to develop folding electric wheelchairs to reflect caretaker's opinions.