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http://dx.doi.org/10.9766/KIMST.2019.22.3.401

A Study of Position Estimation Considering Wheel Slip of Mecanum Wheeled Mobile Robot  

Oh, Injin (Department of Mechanical Engineering, Yonsei University)
Kwon, Gunwoo (Department of Mechanical Engineering, Yonsei University)
Yang, Hyunseok (Department of Mechanical Engineering, Yonsei University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.3, 2019 , pp. 401-407 More about this Journal
Abstract
In this paper, the position estimation considering wheel slip of mecanum wheeled mobile robots is discussed. Since the mecanum wheeled mobile robot does not need a space to rotate, it is very suitable in narrow industrial fields. However, the slip caused by the roller attached to the wheel makes it difficult to estimate the position precisely. Due to these limitations, mecanum wheels are rarely applied to unmanned mobile robots in automation factories. In this paper, a method to compensate the orientation and distance error caused by the slip is proposed. The exact orientation is measured by fusing gyro and magnetometer sensor data with application of Kalman filter. In addition, the kinematic model accounting slip effects will be defined to compensate the distance error.
Keywords
Mecanum Wheel; Slip Coefficient; Kinematic Model; Kalman Filter; Position Estimation;
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