Yulianto, Endro and Munawaroh, Nisfur Rofiatul and Triwiyanto, Triwiyanto and Nugraha, Priyambada Cahya and Syaifudin, Syaifudin and Setioningsih, Endang Dian and Indrato, Tri Bowo and Kholiq, Abd. (2021) Obstacles and Areas Detection Based on Pulse Width Modulation Method for Electric Wheelchair Safety Using Ultrasound Sensors. Journal of Biomimetics, Biomaterials and Biomedical Engineering, 50. pp. 73-88. ISSN 2296-9845
Full text not available from this repository.Abstract
People with disabilities find it difficult to operate wheelchairs especially those with disabilities who do not have hands and feet or are disabled. The aim of this research is to improve safety control for electric wheelchairs by detecting obstacles and detecting areas that minimize collisions against obstacles. The contribution of this research is the use of the HC-SR04 ultrasound sensors to avoid a wheelchair colliding with an obstacle using the Pulse Width Modulation (PWM) method which is set based on the distance of the obstacle and the detection of free areas and corridor areas using the PWM method which is adjusted based on following the wall. The HC-SR04 ultrasound sensor is used as input and is processed on the Arduino nanomicrocontroller series to produce a value of PWM. Measuring the HC-SR04 ultrasound sensor against obstacles obtained the largest deviation of 0.72 and average 148,6 cm at a distance of 150 cm and the smallest deviation at a distance of less than 50 cm and the wheelchair can move at slow, medium and fast speeds with the measurement results on Duty Cycles of 71%, 82% and 94%. The results showed that the final distance of the wheelchair against obstacles was less than 50 cm and the wheelchair moved at a distance of 34 - 53 cm following the wall. The results of this study can control motor speed based on obstacles that can be implemented in electric wheelchairs to improve safety and ease of operation for people with disabilities.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Electric Wheelchair, Pulse Width Modulation, Ultrasound Sensor |
| Subjects: | R Medicine > Medical Electronics > Biomedical Engineering |
| Divisions: | Poltekkes Kemenkes Surabaya > Pusat Penelitan dan Pengabdian Masyarakat > Pubikasi |
| Depositing User: | Misnawar |
| Date Deposited: | 24 Aug 2021 08:27 |
| Last Modified: | 24 Aug 2021 08:27 |
| URI: | http://repo.poltekkesdepkes-sby.ac.id/id/eprint/2466 |
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