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Arduino Based Hybrid MPPT Controller for Wind and Solar

Description: Renewable power systems are becoming more affordable and provide better options than fossil-fuel generation, for not only the environment, but a benefit of a reduced cost of operation. Methods to optimize charging batteries from renewable technologies is an important subject for off-grid and micro-grids, and is becoming more relevant for larger installations. Overcharging or undercharging the battery can result in failure and reduction of battery life. The Arduino hybrid MPPT controller takes t… more
Date: December 2017
Creator: Assaad, Michael
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Data Transmission in Quantized Consensus

Description: In the world of networked system, average consensus is an important dimension of co-ordinate control and cooperation. Since the communication medium is digital, real value cannot be transmitted and we need to perform quantization before data transmission. But for the quantization, error is introduced in exact value and initial average is lost. Based on this limitation, my 16 bit quantization method (sending MSB in 1-4 cycle and MSB+LSB in 5th cycle) reduces error significantly and preserves ini… more
Date: May 2013
Creator: Parvez, Imtiaz
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Implementation of Turbo Codes on GNU Radio

Description: This thesis investigates the design and implementation of turbo codes over the GNU radio. The turbo codes is a class of iterative channel codes which demonstrates strong capability for error correction. A software defined radio (SDR) is a communication system which can implement different modulation schemes and tune to any frequency band by means of software that can control the programmable hardware. SDR utilizes the general purpose computer to perform certain signal processing techniques. We … more
Date: December 2010
Creator: Talasila, Mahendra
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Implementation of Consensus Through Bluetooth Communication

Description: This thesis provides an implementation of consensus of multi-agent networked systems. Consensus problem is an important issue of distributed computing and has various algorithms and applications in the field of electronical and computer science. The consensus requests all nodes of a network reach an agreement over a certain measurement. An algorithm of convergent consensus problem is implemented through a small network of Bluetooth communication in the thesis. The connections of the Bluetooth d… more
Date: May 2014
Creator: Wang, Yinan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Modeling and Control of a Motor System Using the Lego EV3 Robot

Description: In this thesis, I present my work on the modeling and control of a motor system using the Lego EV3 robot. The overall goal is to apply introductory systems and controls engineering techniques for estimation and design to a real-world system. First I detail the setup of materials used in this research: the hardware used was the Lego EV3 robot; the software used was the Student 2014 version of Simulink; a wireless network was used to communicate between them using a Netgear WNA1100 wifi dongle. N… more
Date: August 2015
Creator: Mitchell, Ashley C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Arduino Based Control System for a Brackish Water Desalination Plant

Description: Water scarcity for agriculture is one of the most important challenges to improve food security worldwide. In this thesis we study the potential to develop a low-cost controller for a small scale brackish desalination plant that consists of proven water treatment technologies, reverse osmosis, cation exchange, and nanofiltration to treat groundwater into two final products: drinking water and irrigation water. The plant is powered by a combination of wind and solar power systems. The low-cost c… more
Date: August 2015
Creator: Caraballo, Ginna
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Implementation of an Unmanned Aerial Vehicle for New Generation Peterbilt Trucks

Description: As science and technology continue to advance, innovative developments in transportation can enhance product safety and security for the benefit and welfare of society. The federal government requires every commercial truck to be inspected before each trip. This pre-trip inspection ensures the safe mechanical condition of each vehicle before it is used. An Unmanned Aerial Vehicle (UAV) could be used to provide an automated inspection, thus reducing driver workload, inspection costs and time whi… more
Date: May 2016
Creator: Srinivasan K, Venkatesh
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Design and Implementation of an Effective Vision-Based Leader-Follower Tracking Algorithm Using PI Camera

Description: The thesis implements a vision-based leader-follower tracking algorithm on a ground robot system. One camera is the only sensor installed the leader-follower system and is mounted on the follower. One sphere is the only feature installed on the leader. The camera identifies the sphere in the openCV Library and calculates the relative position between the follower and leader using the area and position of the sphere in the camera frame. A P controller for the follower and a P controller for the … more
Date: August 2016
Creator: Li, Songwei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Applied Real-Time Integrated Distributed Control Systems: An Industrial Overview and an Implemented Laboratory Case Study

Description: This thesis dissertation mainly compares and investigates laboratory study of different implementation methodologies of applied control systems and how they can be adopted in industrial, as well as commercial, automation applications. Namely the research paper aims to assess or evaluate eventual feedback control loops' performance and robustness over multiple conventional or state-of-the-art technologies in the field of applied industrial automation and instrumentation by implementing a laborat… more
Date: August 2016
Creator: Zaitouni, Wael K
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Modeling and Simulation of EV3 Motor Dynamics

Description: This paper describes a procedure to find the transfer function for the Lego Mindstorms Ev3. Lego Mindstorms Ev3 can serve as the platform for a system modeling and a controller design course. It is economical and accessible. It is also very compatible with Matlab and Simulink. This platform can be used for concepts of modeling, feedback, and controller design. The main approach in this work focuses on the closed loop instead of open loop. Although this approach turns the problem into a mor… more
Date: August 2016
Creator: Norouzi Kandalan, Roya
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Measurement and Analysis of Indoor Air Quality Conditions

Description: More than 80% of the people in urban regions and about 98% of cities in low and middle income countries have poor air quality according to the World Health Organization. People living in such environment suffer from many disorders like a headache, shortness of breath or even the worst diseases like lung cancer, asthma etc. The main objective of the thesis is to create awareness about the air quality and the factors that are causing air pollution to the people which is really important and provi… more
Date: August 2016
Creator: Chidurala, Veena
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Synthesis and Design of Microwave Filters and Duplexers with Single and Dual Band Responses

Description: In this thesis the general Chebyshev filter synthesis procedure to generate transfer and reflection polynomials and coupling matrices were described. Key concepts such as coupled resonators, non-resonant nodes have been included. This is followed by microwave duplexer synthesis. Next, a technique to design dual band filter has been described including ways to achieve desired return loss and rejection levels at specific bands by manipulating the stopbands and transmission zeros. The concept of d… more
Date: August 2013
Creator: Mandal, Iman K.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Parameter Estimation of Microwave Filters

Description: The focus of this thesis is on developing theories and techniques to extract lossy microwave filter parameters from data. In the literature, the Cauchy methods have been used to extract filters’ characteristic polynomials from measured scattering parameters. These methods are described and some examples are constructed to test their performance. The results suggest that the Cauchy method does not work well when the Q factors representing the loss of filters are not even. Based on some prototype… more
Date: December 2015
Creator: Sun, Shuo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Preliminary Controller Design for Drone Carried Directional Communication System

Description: In this thesis, we conduct a preliminary study on the controller design for directional antenna devices carried by drones. The goal of the control system is to ensure the best alignment between two directional antennas so as to enhance the performance of air-to-air communication between the drones. The control system at the current stage relies on the information received from GPS devices. The control system includes two loops: velocity loop and position loop to suppress wind disturbances and … more
Date: August 2015
Creator: AL-Emrani, Firas
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Comprehensive Modeling Framework for Airborne Mobility

Description: Mobility models serve as the foundation for evaluating and designing airborne networks. Due to the significant impact of mobility models on the network performance, mobility models for airborne networks (ANs) must realistically capture the attributes of ANs. In this paper, I develop a comprehensive modeling framework for ANs. The work I have done is concluded as the following three parts. First, I perform a comprehensive and comparative analysis of AN mobility models and evaluate the models bas… more
Date: December 2013
Creator: Xie, Junfei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A 018μm Cmos Transmitter for Ecg Signals

Description: Electrocardiography (ECG) signal transmitter is the device used to transmit the electrical signals of the heart to the remote machine. These electrical signals are ECG signals caused due to electrical activities in the heart. ECG signals have very low amplitude and frequency; hence amplification of the signals is needed to strengthen the signal. Conversion of the amplified signal into digital information and transmitting that information without losing any data is the key. This information is f… more
Date: December 2013
Creator: Kakarna, Tejaswi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

On Batch-Processing Based Coded Computing for Heterogeneous Distributed Computing Systems

Description: This article focuses on practical computing systems with heterogeneous computing resources, and designs a novel CDC approach, called batch-processing based coded computing (BPCC), which exploits the fact that every computing node can obtain some coded results before it completes the whole task. The scheme demonstrates promising performance in terms of high computational efficiency and robustness to uncertain disturbances.
Date: July 7, 2021
Creator: Wang, Baoqian; Xie, Junfei; Lu, Kejie; Wan, Yan & Fu, Shengli
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Reconfigurable Aerial Computing System: Design and Development

Description: In situations where information infrastructure is destroyed or not available, on-demand information infrastructure is pivotal for the success of rescue missions. In this paper, a drone-carried on-demand information infrastructure for long-distance WiFi transmission system is developed. It can be used in the areas including emergency response, public event, and battlefield. In years development, the Drone WIFI System has developed from single-CPU platform, twin-CPU platform, Atmega2560 platform … more
Date: August 2018
Creator: Gu, Yixin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Data-Driven Decision-Making Framework for Large-Scale Dynamical Systems under Uncertainty

Description: Managing large-scale dynamical systems (e.g., transportation systems, complex information systems, and power networks, etc.) in real-time is very challenging considering their complicated system dynamics, intricate network interactions, large scale, and especially the existence of various uncertainties. To address this issue, intelligent techniques which can quickly design decision-making strategies that are robust to uncertainties are needed. This dissertation aims to conquer these challenges … more
Date: August 2016
Creator: Xie, Junfei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Cyber-Physical Systems Can Make Emergency Response Smart

Description: This paper from the Humanitarian Technology: Science, Systems and Global Impact 2015 conference proceedings discusses the Smart Emergency Response System prototype built in the context of the SmartAmerica Challenge 2013-2014 by a team of nine organizations led by MathWorks.
Date: July 7, 2015
Creator: Zander, Justyna; Mosterman, Pieter J.; Padir, Taskin; Wan, Yan & Fu, Shengli
Item Type: Refine your search to only Paper
Partner: UNT College of Engineering
open access

Airbourne WiFi Networks Through Directional Antenna: An Experimental Study

Description: In situations where information infrastructure is destroyed or not available, on-demand information infrastructure is pivotal for the success of rescue missions. In this paper, a drone-carried on demand information infrastructure for long-distance WiFi transmission system is developed. It can be used in the areas including emergency response, public event, and battlefield. The WiFi network can be connected to the Internet to extend WiFi access to areas where WiFi and other Internet infrastructu… more
Date: May 2015
Creator: Gu, Yixin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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