The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Frame Stress and Integration Monitoring System based on Continuous Track Type for Multipurpose Application of Electric Wheelchair

전동휠체어의 다목적 활용을 위한 무한궤도형 기반의 프레임 응력 및 통합 모니터링 시스템

  • 조경호 (순천대학교 멀티미디어공학과) ;
  • 정세훈 (영산대학교 연계전공학부) ;
  • 박재성 (순천대학교 멀티미디어공학과) ;
  • 유승현 ((주)네모플랜) ;
  • 심춘보 (순천대학교 정보통신.멀티미디어공학부)
  • Received : 2018.09.11
  • Accepted : 2018.10.15
  • Published : 2018.10.31
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Abstract

An electric wheelchair used to be utilized as a piece of equipment for the disabled and the elderly in the past, but the recent changes to its functions and forms have made it available across various fields and purposes. In this paper, we propose a continuous track type of electric wheelchair prototype to be used in various fields and environments and a monitoring system to control it. A frame stress design was applied to improve its stability during driving compared with the previous wheelchairs. In addition, we provide a convenience for free and easy operation of them using the App. based on android. A monitoring system based on C# was also added to control a large number of electric wheelchairs. As a result of the implementation and performance evaluation, the von Mises stress value was measured 4.401% within the normal range through five times of stress interpretations, and its accuracy of communication for system manipulation was recorded about 98.75%, which means that it has been proven to be safer than the previous wheelchairs.

전동휠체어는 과거 장애인 및 노약자만 활용하는 장비로 인식되었지만, 최근 기능 및 형태의 변화를 통해 다양한 분야에서 다목적으로 활용되고 있다. 이에 본 논문에서는 다양한 분야와 환경에 적용될 수 있는 무한궤도형 전동휠체어의 프로토타입과 이를 제어할 수 있는 통합 모니터링 시스템을 제안한다. 이를 위해 기존 휠체어와 비교하여 운행 시 안전성 향상을 위한 프레임 응력 설계와 안드로이드기반의 앱(App)을 이용하여 전동휠체어를 자유롭고 손쉽게 조작할 수 있는 편의성을 제공한다. 아울러 다량의 전동휠체어를 원격에서 모니터링하고 제어할 수 있는 기능도 지원한다. 시스템 구현 및 성능평가 결과, 응력설계는 5번의 응력 해석을 통하여 존 미제스 응력 값이 정상범위에 해당하는 4.401%로 측정되었으며, 시스템의 제어를 위한 통신 부분에 대한 정확률도 98.75%로 측정되어 기존 휠체어와 비교하여 안전성 높은 것으로 입증되었다.

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References

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