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Articles 1 - 30 of 41
Full-Text Articles in Computer Engineering
Study Of Mobile Robot Operations Related To Lunar Exploration, Matthew Cross
Study Of Mobile Robot Operations Related To Lunar Exploration, Matthew Cross
Electronic Thesis and Dissertation Repository
Mobile robots extend the reach of exploration in environments unsuitable, or unreachable, by humans. Far-reaching environments, such as the south lunar pole, exhibit lighting conditions that are challenging for optical imagery required for mobile robot navigation. Terrain conditions also impact the operation of mobile robots; distinguishing terrain types prior to physical contact can improve hazard avoidance.
This thesis presents the conclusions of a trade-off that uses the results from two studies related to operating mobile robots at the lunar south pole. The lunar south pole presents engineering design challenges for both tele-operation and lidar-based autonomous navigation in the context of …
Control Servovisual Para Una Estructura Serial Robótica Tipo 5r, Edwin Alejandro Pérez Díaz, José Miguel Manrique Hernández
Control Servovisual Para Una Estructura Serial Robótica Tipo 5r, Edwin Alejandro Pérez Díaz, José Miguel Manrique Hernández
Ingeniería en Automatización
En este trabajo se presenta el desarrollo de un control servovisual a una estructura robótica serial Mitsubishi Melfa RV-M1 con el fin de realizar una comparación entre dos metodologías, la primera basada en un sistema de control clásico (PID), y la segunda basada en el sistema de control de tipo servovisual, haciendo énfasis en la posición y la orientación de la herramienta y estableciendo cuál de las dos metodologías es más apropiada para una aplicación y sus limitaciones. Se realiza la simulación del sistema con un modelado dinámico a través de la herramienta Simulink de MATLAB. Se determinan los errores …
Electronic Deer Warning System, David Zhuo, Anlang Lu
Electronic Deer Warning System, David Zhuo, Anlang Lu
Computer Engineering
Deer-vehicle collisions (DVCs) are extremely dangerous, often injuring or even killing drivers. Unfortunately, this form of automotive accident is commonplace in the United States. According to the NHTSA, DVCs result in 200 human deaths a year.2
Despite these deadly incidents, there currently are no deployed federal or state systems for preventing DVCs. There are many consumer electronic deer deterrent products, but their long-term effectiveness is questionable.3 In fact, there does not appear to be much research into electronic deer deterrent systems. Aside from constant audio output and electric shock, no other means of electronic deterrent exist. Even if fixed deterrents …
Android Drone: Remote Quadcopter Control With A Phone, Aubrey John Russell
Android Drone: Remote Quadcopter Control With A Phone, Aubrey John Russell
Computer Engineering
The purpose of the “Android Drone” project was to create a quadcopter that can be controlled by user input sent over the phone’s Wi-Fi connection or 4G internet connection. Furthermore, the purpose was also to be able to receive live video feedback over the internet connection, thus making the drone an inexpensive option compared to other, equivalent drones that might cost thousands of dollars. Not only that, but the Android phone also has a host of other useful features that could be utilized by the drone: this includes GPS, pathing, picture taking, data storage, networking and TCP/IP, a Java software …
Autonomous Golf Cart Firmware, Gerik Kubiak
Autonomous Golf Cart Firmware, Gerik Kubiak
Computer Engineering
The Autonomous Golf Cart Project is a project sponsored by the Cal Poly Robotics Club. The multidisciplinary team is adding sensors and electronics to a regular golf cart with the goal to drive the golf cart around campus without and human input. This task requires a plethora of hardware and firmware to control that hardware. The firmware provides an interface for higher level software to then control the hardware and therefore drive the golf cart. This report is focused on the hardware modifications and the firmware used in order to drive the golf cart from a computer.
Liquid Metal Particle Popping: Nanoscale To Macroscale, Trevor R. Lear
Liquid Metal Particle Popping: Nanoscale To Macroscale, Trevor R. Lear
Open Access Theses
Liquid metal nanoparticles can be used to produce stretchable electronic devices. Understanding the mechanical properties of liquid metal nanoparticles is crucial to optimizing their use in various applications, especially printing of flexible, stretchable electronics. Smaller nanoparticles are desired for high-resolution printing and compatibility with existing scalable manufacturing methods; however, they contain less liquid metal and are more difficult to rupture than larger particles, making them less desirable for post-processing functionality. This study investigates the mechanics of liquid metal particle rupture as a function of particle size. We employ compression of particle films to characterize the composition of the particle core …
Psychophysiological Analysis Of A Pedagogical Agent And Robotic Peer For Individuals With Autism Spectrum Disorders., Mohammad Nasser Saadatzi
Psychophysiological Analysis Of A Pedagogical Agent And Robotic Peer For Individuals With Autism Spectrum Disorders., Mohammad Nasser Saadatzi
Electronic Theses and Dissertations
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by ongoing problems in social interaction and communication, and engagement in repetitive behaviors. According to Centers for Disease Control and Prevention, an estimated 1 in 68 children in the United States has ASD. Mounting evidence shows that many of these individuals display an interest in social interaction with computers and robots and, in general, feel comfortable spending time in such environments. It is known that the subtlety and unpredictability of people’s social behavior are intimidating and confusing for many individuals with ASD. Computerized learning environments and robots, however, prepare a predictable, …
Modeling, Sensorization And Control Of Concentric-Tube Robots, Ran Xu
Modeling, Sensorization And Control Of Concentric-Tube Robots, Ran Xu
Electronic Thesis and Dissertation Repository
Since the concept of the Concentric-Tube Robot (CTR) was proposed in 2006, CTRs have been a popular research topic in the field of surgical robotics. The unique mechanical design of this robot allows it to navigate through narrow channels in the human anatomy and operate in highly constrained environments. It is therefore likely to become the next generation of surgical robots to overcome the challenges that cannot be addressed by current technologies. In CSTAR, we have had ongoing work over the past several years aimed at developing novel techniques and technologies for CTRs. This thesis describes the contributions made in …
Mesh Addition Based On The Depth Image (Mabdi), Lucas E. Chavez
Mesh Addition Based On The Depth Image (Mabdi), Lucas E. Chavez
Mechanical Engineering ETDs
Many robotic applications utilize a detailed map of the world and the algorithm used to produce such a map must take into consideration real-world constraints such as computational and memory costs. Traditional mesh-based environmental mapping algorithms receive data from the sensor, create a mesh surface from the data, and then append the surface to a growing global mesh. These algorithms do not provide a computationally efficient mechanism for reducing redundancies in the global mesh. MABDI is able to leverage the knowledge contained in the global mesh to find the difference between what we expect our sensor to see and what …
Data Fusion For Vision-Based Robotic Platform Navigation, Andrés F. Echeverri
Data Fusion For Vision-Based Robotic Platform Navigation, Andrés F. Echeverri
Master's Theses (2009 -)
Data fusion has become an active research topic in recent years. Growing computational performance has allowed the use of redundant sensors to measure a single phenomenon. While Bayesian fusion approaches are common in general applications, the computer vision community has largely relegated this approach. Most object following algorithms have gone towards pure machine learning fusion techniques that tend to lack flexibility. Consequently, a more general data fusion scheme is needed. The motivation for this work is to propose methods that allow for the development of simple and cost effective, yet robust visual following robots capable of tracking a general object …
Algorithms For Lidar Based Traffic Tracking: Development And Demonstration, Vamsi K. Bandaru
Algorithms For Lidar Based Traffic Tracking: Development And Demonstration, Vamsi K. Bandaru
Open Access Theses
The current state of the art of traffic tracking is based on the use of video, and requires extensive manual intervention for it to work, including hours of painstaking human examination of videos frame by frame which also make the acquisition of data extremely expensive. Fundamentally, this is because we do not have observability of the actual scene from a camera which captures a 2D projection of the 3D world. Even if video were to be automated, it would involve such algorithms as RANSACK for outlier elimination while matching features across frames or across multiple cameras. This results in algorithms …
Command Shaping With Constrained Peak Input Acceleration To Minimize Residual Vibration In A Flexible-Joint Robot, Yumeng Wu
Open Access Theses
Rapid point-to-point motion is limited when flexibilities exist in the system. In order to minimize the vibrations related to joint flexibilities, much work has been done, including modifying the system so that vibrations can be damped out more quickly, calculating the inverse dynamics of the system and constructing shaped input profiles that avoid system natural frequencies. In this work, the earlier fixed-time command shaping method has been extended to a peak-acceleration-constrained approach with two basis functions, the ramped sinusoid function and the versine function, such that the maximum acceleration is guaranteed without overconstraining the input profiles. The approach is developed …
Analysis Of Feedback Control Applied With Command Shaping To Minimize Residual Vibration, Nicholas L. Jacobs
Analysis Of Feedback Control Applied With Command Shaping To Minimize Residual Vibration, Nicholas L. Jacobs
Open Access Theses
Joint flexibility is a physical trait that affects all robotic systems to some degree. This characteristic has been shown to be very detrimental to the performance of these robotic systems when implementing fast point-to-point motion. During such motion, the robot will induce vibrations in its structure that will extend past the completion of the move. Many techniques have been applied over the years in order to minimize these residual vibrations. One such method is known as command shaping, which will construct the input profile so as to avoid exciting the natural frequencies of the system. This work seeks to extend …
Autonomous Android: Autonomous 3d Environment Mapping With Android Controlled Multicopters, Tate Glick Hawkersmith
Autonomous Android: Autonomous 3d Environment Mapping With Android Controlled Multicopters, Tate Glick Hawkersmith
Masters Theses
Autonomous robots are robotic platforms with a high degree of autonomy, programmed to perform various behaviors or tasks. They can either be semi-autonomous, only operable within the strict confines of their direct environment, or fully autonomous, capable of sensing and navigating their environments without any human interaction.
In this thesis, I focus on fully autonomous robotic platforms, specifically multicopters, controlled by an onboard Android-driven device, a widely available operating system for smartphones and tablets with over 1.4 billion active monthly users worldwide [Callaham 2015]. The main objective of this research is to create a plug and play solution for autonomous …
Vision-Based Motion For A Humanoid Robot, Khalid Abdullah Alkhulayfi
Vision-Based Motion For A Humanoid Robot, Khalid Abdullah Alkhulayfi
Dissertations and Theses
The overall objective of this thesis is to build an integrated, inexpensive, human-sized humanoid robot from scratch that looks and behaves like a human. More specifically, my goal is to build an android robot called Marie Curie robot that can act like a human actor in the Portland Cyber Theater in the play Quantum Debate with a known script of every robot behavior. In order to achieve this goal, the humanoid robot need to has degrees of freedom (DOF) similar to human DOFs. Each part of the Curie robot was built to achieve the goal of building a complete humanoid …
A Simulation-Based Layered Framework Framework For The Development Of Collaborative Autonomous Systems, Ioannis Sakiotis
A Simulation-Based Layered Framework Framework For The Development Of Collaborative Autonomous Systems, Ioannis Sakiotis
Computational Modeling & Simulation Engineering Theses & Dissertations
The purpose of this thesis is to introduce a simulation-based software framework that facilitates the development of collaborative autonomous systems. Significant commonalities exist in the design approaches of both collaborative and autonomous systems, mirroring the sense, plan, act paradigm, and mostly adopting layered architectures. Unfortunately, the development of such systems is intricate and requires low-level interfacing which significantly detracts from development time. Frameworks for the development of collaborative and autonomous systems have been developed but are not flexible and center on narrow ranges of applications and platforms. The proposed framework utilizes an expandable layered structure that allows developers to define …
Senior Project: Control System For An Underwater Remotely Operated Vehicle, Tyler Mau, Joseph Mahoney
Senior Project: Control System For An Underwater Remotely Operated Vehicle, Tyler Mau, Joseph Mahoney
Computer Engineering
No abstract provided.
The Story Of Beyoncé: The Roborodentia 2016 Contestant, Brandon Arnold, Mana Kulkarni, Aaron Newberg, Jon Sleep
The Story Of Beyoncé: The Roborodentia 2016 Contestant, Brandon Arnold, Mana Kulkarni, Aaron Newberg, Jon Sleep
Computer Engineering
No abstract provided.
Roborodentia Robot: Tektronix, Sean Yap
Roborodentia Robot: Tektronix, Sean Yap
Computer Engineering
Tektronix is a robot created to compete in the 2016 Roborodentia Competition. This report details the full function and implementation of the robot.
Roborodentia 2016: Scorpion, Tyler Whalen
Roborodentia 2016: Scorpion, Tyler Whalen
Computer Engineering
This report showcases my entry into the Roborodentia 2016 competition, and my senior project. I chose this project because robotics has always interested me, and this was a great opportunity to jump in headfirst.
I will step through my design decisions and detail all information necessary for replicating this build.
Roborodentia Xxi Robot, Jose A. Villa
Roborodentia Xxi Robot, Jose A. Villa
Computer Engineering
This report covers the design and implementation of a robot built to compete in Roborodentia 2016.
Roborodentia Robot (Amazon Prime), Alec Cheung
Roborodentia Robot (Amazon Prime), Alec Cheung
Computer Science and Software Engineering
Roborodentia is an annual autonomous robotics competition sponsored and hosted by Cal Poly. In the 2016 competition, participants are to design a robot that scores the most points by gathering rings from marked supply pegs and placing them onto marked scoring pegs. For Roborodentia I designed, constructed, and programmed a robot, named Amazon Prime, to compete.
An Internet Of Things (Iot) Robotic Light Switch, Arsal Habib
An Internet Of Things (Iot) Robotic Light Switch, Arsal Habib
Honors Theses
The purpose of this project was to design and build an Internet of Things (IoT) Robotic Light Switch. This light switch would act as a complementary device to existing toggle switches and equip them with typical smart device features such as remote control (via Wi-Fi), digital voice assistant control, motion-sensing and integration with other smart home solutions (such as IFTTT). All these features would be supported by a dedicated web page that would also be able to view the usage statistics of the device. This device is aimed at offering users an extremely easy-to-install home automation solution that needs no …
Control System For 3d Printable Robotic Hand, Htoo Wai Htet
Control System For 3d Printable Robotic Hand, Htoo Wai Htet
Honors Theses
Humanoid robotics is a growing area of research due to its potential applications in orthosis and prosthesis for human beings. With the currently available technologies, the most advanced robotic hands used in prosthetics or robotics can cost from $11,000 to $90,000, making it inaccessible to the general population of amputees and robotics hobbyists. Most of the features provided by these expensive technologies are superfluous to many users, creating a great gap in cost and services between users and technology. Using the emerging 3D printing technology, my project is to construct a 3D printed robotic hand that can reproduce as many …
A Stroke Therapy Brace Design, Evan Kirkbride
A Stroke Therapy Brace Design, Evan Kirkbride
Electrical Engineering
Victims of stroke often have difficulty with rehabilitation. With limited movement on their affected arm, patients often do not want to move much for physical therapy. In this project, we design a robotic brace that helps stroke patients move their arm more effectively in a reaching or pulling motion. By giving patients more movement in their affected arm than they would have otherwise, patients gain more from rehabilitation. The brace also adapts to the patient’s needs, providing more inclination or resistance as needed for their physical therapy. This kind of therapy engages patients rather than relying on their likely dwindled …
Robot Detection Using Gradient And Color Signatures, Megan Marie Maher
Robot Detection Using Gradient And Color Signatures, Megan Marie Maher
Honors Projects
Tasks which are simple for a human can be some of the most challenging for a robot. Finding and classifying objects in an image is a complex computer vision problem that computer scientists are constantly working to solve. In the context of the RoboCup Standard Platform League (SPL) Competition, in which humanoid robots are programmed to autonomously play soccer, identifying other robots on the field is an example of this difficult computer vision problem. Without obstacle detection in RoboCup, the robotic soccer players are unable to smoothly move around the field and can be penalized for walking into another robot. …
Inferring Intrinsic Beliefs Of Digital Images Using A Deep Autoencoder, Seok H. Lee
Inferring Intrinsic Beliefs Of Digital Images Using A Deep Autoencoder, Seok H. Lee
Computer Science and Computer Engineering Undergraduate Honors Theses
Training a system of artificial neural networks on digital images is a big challenge. Often times digital images contain a large amount of information and values for artificial neural networks to understand. In this work, the inference model is proposed in order to absolve this problem. The inference model is composed of a parameterized autoencoder that endures the loss of information caused by the rescaling of images and transition model that predicts the effect of an action on the observation. To test the inference model, the images of a moving robotic arm were given as the data set. The inference …
Efficient Algorithms For Clustering Polygonal Obstacles, Sabbir Kumar Manandhar
Efficient Algorithms For Clustering Polygonal Obstacles, Sabbir Kumar Manandhar
UNLV Theses, Dissertations, Professional Papers, and Capstones
Clustering a set of points in Euclidean space is a well-known problem having applications in pattern recognition, document image analysis, big-data analytics, and robotics. While there are a lot of research publications for clustering point objects, only a few articles have been reported for clustering a given distribution of obstacles. In this thesis we examine the development of efficient algorithms for clustering a given set of convex obstacles in the 2D plane. One of the methods presented in this work uses a Voronoi diagram to extract obstacle clusters. We also consider the implementation issues of point/obstacle clustering algorithms.
Selección Y Clasificación De Piezas Mediante Visión De Máquina Utilizando Un Robot Industrial, Laura Julieth Patiño Arévalo, Wilson Alonso Hernández Martínez
Selección Y Clasificación De Piezas Mediante Visión De Máquina Utilizando Un Robot Industrial, Laura Julieth Patiño Arévalo, Wilson Alonso Hernández Martínez
Ingeniería en Automatización
Los robots industriales, diseñados para realizar operaciones de forma rápida, precisa y repetidamente tienen una larga tradición en la industria manufacturera, debido a que operan en ambientes relativamente estáticos y en grandes cantidades, sin embargo, el uso de estos en procesos de selección y clasificación conlleva la visión de máquina, la cual aporta a la tarea la información necesaria al procesar una imagen y dar los datos correctos para posterior realización de la tarea. El presente trabajo de grado contiene la implementación de un sistema de visión de máquina para la selección y clasificación de piezas por forma y tamaño …
Representation And Control Of Coordinated-Motion Tasks For Human-Robot Systems, Hyungju Andy Park
Representation And Control Of Coordinated-Motion Tasks For Human-Robot Systems, Hyungju Andy Park
Open Access Dissertations
It is challenging for robots to perform various tasks in a human environment. This is because many human-centered tasks require coordination in both hands and may often involve cooperation with another human. Although human-centered tasks require different types of coordinated movements, most of the existing methodologies have focused only on specific types of coordination. This thesis aims at the description and control of coordinated-motion tasks for human-robot systems; i.e., humanoid robots as well as multi-robot and human-robot systems.
First, for bimanually coordinated-motion tasks in dual-manipulator systems, we propose the Extended-Cooperative-Task-Space (ECTS) representation, which extends the existing Cooperative-Task-Space (CTS) representation based …