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Reactive control and obstacle avoidance of a LEGO NXT Robot

Sharma, Nikita and Prasad, Krishneel (2012) Reactive control and obstacle avoidance of a LEGO NXT Robot. [Professional and Technical Reports] (Unpublished)

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    Abstract

    Robotics has always been a fascinating field. The ability to control guided motion has seen major developments in the industrial world. This project was a continuing project. The codes provided with the resources for this project was developed by the supervisor, Dr. Praneel Chand as part of his Phd research. Previously a pair of EE 300 students has worked on the Lego robot with limited success. The main purpose for the design of this Lego robot was to detect and avoid obstacles. Initially the Lego robot was not able to run through the GUI (graphical user interface) simulation. Simulation tests were carried out along with hardware experiments to troubleshoot. also the battery of the NXT brick drained faster. It was found out that the sensors were giving wrong readings. Sensor readings were corrected through the use of correct formulas in the program codes. Two more sensors were added to give more accurate information to the robot of its surroundings. An external power source was put on the platform to power up the sensors externally which took off some load from the NXT battery. The NXT Lego robot was not fully able to achieve obstacle detection and avoidance because a big time difference between distance data call to the NXT brick, there were errors in the real time detection and avoidance of the Lego robot.

    Item Type: Professional and Technical Reports
    Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > Robotics and Automation
    Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
    Depositing User: Praneel Chand
    Date Deposited: 02 Apr 2013 14:01
    Last Modified: 18 Jan 2017 15:42
    URI: http://repository.usp.ac.fj/id/eprint/5649
    UNSPECIFIED

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