doi: 10.18178/ijiet.2017.7.4.886
Control System Teaching and Experiment Using LEGO MINDSTORMS NXT Robot
, ,
Tianhong Pan*
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013 China
Abstract
Control system Teaching in new era is quite challenging, because many control concepts are formulated in the form of mathematics. In this paper, LEGO Mindstorms NXT connected with MATLAB/Simulink is introduced to assist the control system teaching. Lego Mindstorms NXT builds a mobile robot which includes two servomotors and one infrared light sensor. PID controller is designed in MATLAB/Simulink to achieve the line tracking of the mobile robot. Using the Ziegler-Nichols method, three key coefficients (proportional, integral and derivative) are tuned to get optimal control. The performance of PID controller has been validated by a series of experiments at different designed trajectories. Using the proposed method, the students can analyze and test the PID controller conveniently. These methods can also be extended to other similar courses.
Keywords
- LEGO Mindstorms NXT
- line tracking
- MATLAB/SIMULINK
- PID control
How to Cite
Jiali Ding, Zhengming Li, and Tianhong Pan, "Control System Teaching and Experiment Using LEGO MINDSTORMS NXT Robot," International Journal of Information and Education Technology, vol. 7, no. 4, pp. 309-313, 2017. https://doi.org/10.18178/ijiet.2017.7.4.886
Copyright & License
Copyright © 2017 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).