Earticle

초록

영어

In this paper we propose a new solution which utilizing the Gyro Sensor and Tilt Sensor in real-time controlling the balance of wheelchair seat. The existing wheelchair systems have the risk of falling when users go uphill because of the uneven weight allocation. But when applying our new method, the wheelchair seat can automatically adjust to maintain the balance therefore provides a safer and more stable ride. In order to adjust the seat correctly, we calculate the seat angle using Tilt Sensor. However, due to the law of inertia when wheelchair is moving there is deviation in output value of Tilt Sensor. To solve this problem, a Gyro sensor is used for measuring the acceleration and get the correct value of tilting angle. Through various experimentations we can prove that by taking advantage of Gyro sensor and Tilt sensor combination, the system is able to determine the correct seat angle in both cases when the wheelchair moving or not. We also tackle the power consumption issue in wheelchair, by using ZigBee sensor module to retrieve terrain information in advance and controlling the balance by two motors thus the overall power consumption for seat balancing is reduced significantly.

목차

Abstract
 1. Introduction
 2. Related Works
  2.1. Seat Balancing Electric Wheelchair System
  2.2. ZigBee Module for Wheelchair Seat Balance
 3. Maintaining System in Balance Seat
  3.1. System Architecture for Wheelchair Seat Balance
  3.2. Motor Drive for Wheelchair Seat Balance
  3.3. Sensors for Wheelchair Seat Balance
 4. Balance Seat using ZigBee System
 5. Experiments and Results
  5.1. Battery Power Test using Sensor
  5.2. Evaluating the Sensor using in Wheelchair Seat Balancing System
 6. Conclusions
 Acknowledgements
 References

키워드

저자

• Sanghyun Park [ School of Electronics and Computer Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea ]
• Jinsul Kim [ School of Electronics and Computer Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea ]
• Yonggwan Won [ School of Electronics and Computer Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605