1,137 research outputs found

    Improved Fuzzy-Pid Controller In Following Complicated Path For Lego Mindstorms NXT

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    Line follower robots are monotype mobile robot having the ability to follow a line very accurately. Though many researchers are studying regarding line follower robot controller but most of the concepts are concentrated on theoretical design. The performance of the conventional type of controller in controlling line follower robot is still being a popular topic to be discussed. The traditional controller cannot deal with uncertainty data such as the amount of light whether it is too high or too low light that received by the light sensor which leads to the inaccurate movement of the line follower robot. This research presents an application of improving fuzzy-PID controller method in controlling LEGO Mindstorms NXT while following the complicated path with more accurate and high velocity. LEGO Mindstorms NXT with single light sensor is used as a line follower robot to tracking the complicated black line drawn on the white surface. The investigation of existing method for line following application will help in identifying the best controller method of inspecting the pattern of line follower robot movement. At the end of the research, the movement of LEGO Mindstorms NXT robot is more accurate with high complexity of line by using improved fuzzy-PID controller. The improved fuzzy-PID controller also increases the velocity of the robot when tracking the complicated path

    Generic Project Plan for a Mobile Robotics System

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    This thesis discussed the mobile land robots for the robotic competitions. The topics discussed in this thesis are robotic systems, mobile land robots, robot competitions, and example of robot designs. Question-answer sections are added to help understand the requirements to build the robot. Examples include three different teams who participated in different robotic competitions to provide a context for robotic competitions. The thesis was divided into the five chapters. The first and second chapters explained the different kind of robotics systems, and opportunities. The focus of the information was the mobile land robots, which was explained under the third chapter, mobile land robots. The aim of the thesis was to guide those who want to design, build, and compete in the mobile robot competition. As a result, the information from various resources been gathered and has been given a form of thesis to help individuals or group of individuals to guide them through the robotic competitions

    Automatic Romaine Heart Harvester

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    The Romaine Robotics Senior Design Team developed a romaine lettuce heart trimming system in partnership with a Salinas farm to address a growing labor shortage in the agricultural industry that is resulting in crops rotting in the field before they could be harvested. An automated trimmer can alleviate the most time consuming step in the cut-trim-bag harvesting process, increasing the yields of robotic cutters or the speed of existing laborer teams. Leveraging the Partner Farm’s existing trimmer architecture, which consists of a laborer loading lettuce into sprungloaded grippers that are rotated through vision and cutting systems by an indexer, the team redesigned geometry to improve the loading, gripping, and ejection stages of the system. Physical testing, hand calculations, and FEA were performed to understand acceptable grip strengths and cup design, and several wooden mockups were built to explore a new actuating linkage design for the indexer. The team manufactured, assembled, and performed verification testing on a full-size metal motorized prototype that can be incorporated with the Partner Farm’s existing cutting and vision systems. The prototype met all of the established requirements, and the farm has implemented the redesign onto their trimmer. Future work would include designing and implementing vision and cutting systems for the team’s metal prototype

    Control tunning approach and digital filter application for competitive line follower robot

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    This research describes the development of a control strategy to optimize a competitive line follower robot for standard races. The innovative approach stems from the WolfBotz team at CEFET/RJ, presenting a thorough exploration of mathematical foundations, hardware design, control analysis, and how to implement this system in a microcontroller. This research complements a previous work that shows all the regulations used in Brazilian competitions and describes the controllers used in the system, such as angular and linear control. This research emphasizes all the changes between the two versions of Line Follower robots. The emphasis on mathematical foundations and integrating digital signal processing techniques like digital filters set the stage for robust sensor data interpretation. The tuning and optimization of dual controllers for track stability and linear velocity regulation represent a significant innovation, augmenting the robot’s overall performance.The authors would like to thank CEFET/RJ and the Brazilian research agencies CAPES, CNPq, and FAPERJ for supporting this work. Besides, the authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CeDRI (UIDB/05757/2020 and UIDP/05757/2020) and SusTEC (LA/P/0007/2021).info:eu-repo/semantics/publishedVersio

    DroidStorm: Development of a Bluetooth based mobile application for autonomous systems

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    Android application for controlling LEGO MINNDSTORMS NXT robots using Bluetooth. Capable of creating a collaborative robotic system where two robots work together to achieve a given objective.Tormo Franco, TI. (2011). DroidStorm: Development of a Bluetooth based mobile application for autonomous systems. http://hdl.handle.net/10251/15822Archivo delegad

    Control of a mobile platform didactic purposes

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    Robots are electromechanical machines having ability to perform tasks or actions on some given electronic programming. Line follower robots are mobile robots having ability to follow a line very accurately having an onboard hardwired control circuit. while Omni directional mobile robots have been popularly employed in several applications.This situation brings the idea of omnidirectional robot at manufacturing. Such a robot can respond more quickly and it would be capable of more sophisticated behaviors such as to transport materials and placed on processing machine and outgoing warehouses. This thesis has tried to focus in the control of four wheel omnidirectional mobile robot to be applied to the Factory Lite competition. Four motors are used for governing wheel’s motion. Practical applications of a line follower and odometry will be implemented in this work.Les robots sont des machines électromécaniques capables d'exécuter des tâches ou des actions selon une programmation électronique donnée. Les robots suiveurs de ligne sont des robots mobiles capables de suivre une ligne avec une grande précision grâce à un circuit de contrôle câblé embarqué. Les robots mobiles omnidirectionnels sont couramment utilisés dans plusieurs applications, ce qui amène l'idée d'un robot omnidirectionnel dans la fabrication. Un tel robot peut Un tel robot peut répondre plus rapidement et il serait capable de comportements plus sophistiqués tels que transporter des matériaux et les placer sur des machines de traitement et des entrepôts de sortie. Cette thèse a essayé de se concentrer sur le contrôle d'un robot mobile omnidirectionnel à quatre roues pour être appliqué à la compétition Factory Lite. Quatre moteurs sont utilisés pour gouverner le mouvement des roues. Des applications pratiques d'un suiveur de ligne et d'odométrie seront mises en oeuvre dans ce travail

    Mobile Robotics in Education and Research

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