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http://dx.doi.org/10.9728/dcs.2018.19.8.1585

A Study on Apply of Smart Sensors for Wheelchair Balancing Control  

Ma, Linh Van (School of Electronics and Computer Engineering, Chonnam National University)
Cho, Young-bin (School of Electronics and Computer Engineering, Chonnam National University)
Kim, Jinsul (School of Electronics and Computer Engineering, Chonnam National University)
Publication Information
Journal of Digital Contents Society / v.19, no.8, 2018 , pp. 1585-1592 More about this Journal
Abstract
Due to un-balancing weight allocation on the wheelchair the existing wheelchair system are faced with the risk of flipping or falling when a wheelchair goes up to a hill. In to order to be safer during riding the wheelchair, in this paper, we proposed a real-time new solution using the integrated Gyro Sensor and Tilt Sensor for controlling the balance. Because the typical property of wheelchair is for the special user who meets the difficulty in moving on foot the maintain the balance of wheel-chair systems have become important and helpful. In our method, we calculate the seat angle using information from Tilt Sensor. However, due to the law of inertia when a wheelchair is moving there is a deviation in the output value of Tilt Sensor. Therefore, we have to optimize the value of the angle by utilizing the acceleration that is the output of the Gyro Sensor. We took the advantages by using the combination of Gyro and Tilt sensors. Moreover, we also solved the consumption issue of the whole system. Through various experimentations with usage of ZigBee sensor module, the power consumption for the balancing system is reduced significantly.
Keywords
BLDC Motor Drive; Electric Wheelchair Control System; Seat Balance; Gyro Sensor; ZigBee Communication;
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