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IJIET 2017 Vol.7(4): 309-313 ISSN: 2010-3689
doi: 10.18178/ijiet.2017.7.4.886

Control System Teaching and Experiment Using LEGO MINDSTORMS NXT Robot

Jiali Ding, Zhengming Li, and Tianhong Pan

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.

Index Terms—LEGO Mindstorms NXT, line tracking, MATLAB/SIMULINK, PID control.

The authors are with School of Electrical and Information Engineering, Jiangsu University , Zhenjiang, 212013 China (corresponding author, Tianhong Pan; e-mail: thpan@ujs.edu.cn).


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.

General Information

  • ISSN: 2010-3689 (Online)
  • Abbreviated Title: Int. J. Inf. Educ. Technol.
  • Frequency: Monthly
  • DOI: 10.18178/IJIET
  • Editor-in-Chief: Prof. Dr. Steve Thatcher
  • Executive Editor: Ms. Nancy Y. Liu
  • Abstracting/ Indexing: Scopus (CiteScore 2022: 2.0), INSPEC (IET), UGC-CARE List (India), CNKI, EBSCO, Google Scholar
  • E-mail: ijiet@ejournal.net


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