Real Time Swim Instructor, 2014 California Polytechnic State University - San Luis Obispo
Real Time Swim Instructor, Konrad Antoniuk
Electrical Engineering
Both competitive and recreational swimmers want an efficient swim stroke but often lack consistent feedback with technical insight. Competitive swimmers rely on coaches for instruction but have to stop swimming to listen. The Real Time Swim Instructor project provides live feedback to a swimmer so they can feel their stroke correction while they’re swimming. The developing swimmer feels the difference between correct and incorrect form instantaneously.
The project takes on the responsibility of measuring the moving body, accurately determining stroke improvement, functioning under water, and providing recognizable feedback. Additionally, the user can review their swim from data stored in memory. …
Continuous Hand-Tool Leveling Device, 2014 California Polytechnic State University - San Luis Obispo
Continuous Hand-Tool Leveling Device, Shaun Villa Koide
Electrical Engineering
To produce clean and precise cuts, hand-tools (e.g. knives and saws) must maintain a consistent angle of orientation during the entire cutting process. The Continuous Hand-Tool Leveling Device mounts on the desired hand-tool and the user inputs the desired angle of the cutting plane. The device utilizes a microcontroller unit (MCU) and accelerometer to implement real-time angle measurement. When using a hand-tool, the device uses an LED that indicates that the hand-tool’s angle deviates from the user-set desired angle, which prevents any potential mistakes from occurring due to user error. The device easily mounts on many common cutting tools. Additionally, …
High-Speed Mobile Networks For Modern Farming And Agricultural Systems, 2014 California Polytechnic State University, San Luis Obispo
High-Speed Mobile Networks For Modern Farming And Agricultural Systems, Santos Najar
Master's Theses
ABSTRACT
High-Speed Mobile Networks for Modern Farming and Agricultural Systems
J.Santos Najar-Ramirez
High-speed mobile networks are necessary for agriculture to inventory individual plant health, maximize yield and minimize the resources applied. More specifically, real-time information on individual plant status is critical to decisions regarding the management of resources reserved and expended. This necessity can be met by the availability of environmental sensors (such as humidity, temperature, and pH) whose data is kept on storage servers connected to static and mobile local area networks. These static and mobile local area networks are connected to cellular, core and satellite networks. For …
Mos Current Mode Logic (Mcml) Analysis For Quiet Digital Circuitry And Creation Of A Standard Cell Library For Reducing The Development Time Of Mixed Signal Chips, 2014 California Polytechnic State University, San Luis Obispo
Mos Current Mode Logic (Mcml) Analysis For Quiet Digital Circuitry And Creation Of A Standard Cell Library For Reducing The Development Time Of Mixed Signal Chips, David Marusiak
Master's Theses
Many modern digital systems use forms of CMOS logical implementation due to the straight forward design nature of CMOS logic and minimal device area since CMOS uses fewer transistors than other logic families. To achieve high-performance requirements in mixed-signal chip development and quiet, noiseless circuitry, this thesis provides an alternative toCMOSin the form of MOS Current Mode Logic (MCML). MCML dissipates constant current and does not produce noise during value changing in a circuit CMOS circuits do. CMOS logical networks switch during clock ticks and with every device switching, noise is created on the supply and ground to deal with …
An Analog Vlsi Deep Machine Learning Implementation, 2014 University of Tennessee - Knoxville
An Analog Vlsi Deep Machine Learning Implementation, Junjie Lu
Doctoral Dissertations
Machine learning systems provide automated data processing and see a wide range of applications. Direct processing of raw high-dimensional data such as images and video by machine learning systems is impractical both due to prohibitive power consumption and the “curse of dimensionality,” which makes learning tasks exponentially more difficult as dimension increases. Deep machine learning (DML) mimics the hierarchical presentation of information in the human brain to achieve robust automated feature extraction, reducing the dimension of such data. However, the computational complexity of DML systems limits large-scale implementations in standard digital computers. Custom analog signal processing (ASP) can yield much …
Object Tracking By Pan Tilt System, 2014 University of Tennessee - Knoxville
Object Tracking By Pan Tilt System, Lily Hoang
Chancellor’s Honors Program Projects
No abstract provided.
Developing A Tool For Generation Of Operational Amplifier Models From Datasheet Parameters, 2014 University of Arkansas, Fayetteville
Developing A Tool For Generation Of Operational Amplifier Models From Datasheet Parameters, Benjamin Riley Sissons
Electrical Engineering Undergraduate Honors Theses
Due to their flexibility and usefulness operational amplifiers are a very common circuit component that has been in use for over fifty years. Because of their widespread use in circuits there has always been a need for simulation models of the op amp. The purpose of this thesis is to demonstrate the design a tool for use with the modeling software ModLyng that takes several parameters from the datasheet of an op amp and generates a model that can be exported to several popular hardware description languages including Verilog-A and Verilog-AMS. The tool was designed as a plugin for ModLyng …
High-Speed Delta-Sigma Data Converters For Next-Generation Wireless Communication, 2014 Boise State University
High-Speed Delta-Sigma Data Converters For Next-Generation Wireless Communication, Sakkarapani Balagopal
Boise State University Theses and Dissertations
In recent years, Continuous-time Delta-Sigma(CT-ΔΣ) analog-to-digital converters (ADCs) have been extensively investigated for their use in wireless receivers to achieve conversion bandwidths greater than 15 MHz and higher resolution of 10 to 14 bits. This dissertation investigates the current state-of-the-art high-speed single-bit and multi-bit Continuous-time Delta-Sigma modulator (CT-ΔΣM) designs and their limitations due to circuit non-idealities in achieving the performance required for next-generation wireless standards. Also, we presented complete architectural and circuit details of a high-speed single-bit and multi-bit CT-ΔΣM operating at a sampling rate of 1.25 GSps and 640 MSps respectively (the highest reported sampling rate in a 0.13 …
Imu Based Tracking And Stabilization System, 2014 California Polytechnic State University - San Luis Obispo
Imu Based Tracking And Stabilization System, Aaron Barton
Electrical Engineering
The objective of this project is to develop a system that can track a user selected point in space given displacement, vibration and rotation of the device. Stabilization systems are used in various forms over the years, with the military amongst the foremost adopters. More recently, with the increasing popularity of quad-copters for RC hobbyists, and small cameras capable of take high quality video during recreational sports such as skiing or mountain biking, the need has emerged for a cheaper, more accessible version of stabilization systems for use in photography. Additionally, while some devices do exist for hobbyists can take …
Bi-Directional Vector Variable Gain Amplifier For An X-Band Phased Array Radar Application, 2014 University of Massachusetts Amherst
Bi-Directional Vector Variable Gain Amplifier For An X-Band Phased Array Radar Application, Arash Mashayekhi
Masters Theses 1911 - February 2014
This thesis presents the design, layout, and measurements of a bi-directional amplifier with variable vector (in-phase / quadrature) gain control that will be part of an electronically steered phased array system. The electronically steered phased array has many advantages over the conventional mechanically steered antennas including rapid scanning of the beam and adaptively creating nulls in desired locations. The 10-bit bi-directional Vector Variable Gain Amplifier (VVGA) is part of the transmit and receive module of each antenna element where transmit and receive functionality is determined through a simple switch. The VVGA performs amplification of the IF IQ pair by an …
Proposed Middleware Solution For Resource-Constrained Distributed Embedded Networks, 2014 University of Kentucky
Proposed Middleware Solution For Resource-Constrained Distributed Embedded Networks, Jason T. Rexroat
Theses and Dissertations--Electrical and Computer Engineering
The explosion in processing power of embedded systems has enabled distributed embedded networks to perform more complicated tasks. Middleware are sets of encapsulations of common and network/operating system-specific functionality into generic, reusable frameworks to manage such distributed networks. This thesis will survey and categorize popular middleware implementations into three adapted layers: host-infrastructure, distribution, and common services. This thesis will then apply a quantitative approach to grading and proposing a single middleware solution from all layers for two target platforms: CubeSats and autonomous unmanned aerial vehicles (UAVs). CubeSats are 10x10x10cm nanosatellites that are popular university-level space missions, and impose power and …
Synchronization Limits Of Chaotic Circuits, 2014 University of Central Arkansas
Synchronization Limits Of Chaotic Circuits, C. M. Church, Stephen R. Addison
Journal of the Arkansas Academy of Science
Through system modeling with electronic circuits, two circuits were constructed that exhibit chaos over a wide ranges of initial conditions. The two circuits were one that modeled an algebraically simple “jerk” function and a resistor-inductor-diode (RLD) circuit where the diode was reverse-biased on the positive voltage cycle of the alternating current source. Using simulation data from other experiments, the waveforms, bifurcation plots, and phase space plots of the concrete circuit were verified. Identical circuits were then built containing variable components and coupled to their original, matching circuits. The variable components were used to observe a wide range of conditions to …
Humidity Sensor Circuit Using Real Time Operating System (Freertos) Kernel, 2014 University of Kentucky
Humidity Sensor Circuit Using Real Time Operating System (Freertos) Kernel, Bojie Chen
Theses and Dissertations--Electrical and Computer Engineering
A humidity sensor can be used to measure the moisture content of the environment. The physical change of the sensor expresses as the change of electrical property like capacitance, resistance, voltage, current, frequency, etc. In order to process these analog signals digitally, microprocessor is involved in the measurement. This thesis presents design of a circuit to measure low moisture levels. The 16-bit RISC mixed signal microcontroller MSP430F249 from Texas Instruments will be used. The circuit has good performance at extremely low humidity levels.
Meanwhile, a small real time operating system kernel FreeRTOS, a market leading RTOS from Real Time Engineer …
Physical Design Of A Smart Camera With Integrated Digital Pixel Sensors Using A 0.13Μm 8-Layer Metal Cmos Process, 2013 University of Nebraska-Lincoln
Physical Design Of A Smart Camera With Integrated Digital Pixel Sensors Using A 0.13Μm 8-Layer Metal Cmos Process, Mahir K. Gharzai
Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research
The design of cameras has historically kept imagery and computational circuitry isolated in an attempt to maximize image quality by improving pixel pitch and routing density. Although this technique has worked in creating high density arrays of pixels for large resolution imagers, it has never been able to achieve high framerate computational operations.
A radical approach is introduced to solve this dilemma by creating compact, low- power pixel elements with built-in analog-to-digital converters that directly interface with digital logic. These pixels are capable of integrating alongside logic cells and to create an array of pixels inside the processor that can …
Cmos Smart Camera With Focal Plane Neighborhood-Parallel Image Processing, 2013 University of Nebraska – Lincoln
Cmos Smart Camera With Focal Plane Neighborhood-Parallel Image Processing, Joseph A. Schmitz
Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research
A neighbhorhood-based smart camera architecture is designed and implemented in a 0.13 μm CMOS technology. Each 8 × 8 region of pixels contains a small processor with local memory, which are tiled to form a full-resolution camera. Each processor operates in parallel, enabling high-speed image processing suitable for tracking and recognition tasks. The architecture features the programming flexibility of designs us- ing chip-level and row-level processors while preserving the scalability of pixel-parallel processing elements. The neighborhood processors are implemented physically be- tween the pixel photodiodes, creating multiple design challenges that are discussed in detail.
Advisors: Sina Balkir and Michael Hoffman
A Reconfigurable Digital-To-Analog Converter With Supply Invariant Linearity, 2013 University of Arkansas, Fayetteville
A Reconfigurable Digital-To-Analog Converter With Supply Invariant Linearity, Nicholas J. Chiolino
Graduate Theses and Dissertations
A novel reconfigurable digital-to-analog converter (DAC) with supply independent linearity is presented. The process agnostic converter achieves wide supply range operation and re-configurability by being charge based. This converter consists of a 7-bit parallel digital input control core and an analog "summing" core utilizing charging capacitors with an operational transconductance amplifier in a voltage-follower configuration. This topology is highly configurable to allow for optimization across process voltages, step sizes and low power operation. The specification of the DAC is (1) supply independence (2) low power operation (3) operation up to 200 kHz and (4) conversion control through a DAC enable …
Max Operation In Statistical Static Timing Analysis On The Non-Gaussian Variation Sources For Vlsi Circuits, 2013 University of Nevada, Las Vegas
Max Operation In Statistical Static Timing Analysis On The Non-Gaussian Variation Sources For Vlsi Circuits, Abu M. Baker
UNLV Theses, Dissertations, Professional Papers, and Capstones
As CMOS technology continues to scale down, process variation introduces significant uncertainty in power and performance to VLSI circuits and significantly affects their reliability. If this uncertainty is not properly handled, it may become the bottleneck of CMOS technology improvement. As a result, deterministic analysis is no longer conservative and may result in either overestimation or underestimation of the circuit delay. As we know that Static-Timing Analysis (STA) is a deterministic way of computing the delay imposed by the circuits design and layout. It is based on a predetermined set of possible events of process variations, also called corners of …
An On-Chip Transformer-Based Digital Isolator System, 2013 University of Tennessee - Knoxville
An On-Chip Transformer-Based Digital Isolator System, Cory Lynn Fandrich
Masters Theses
An on-chip transformer-based digital isolator has been designed, fabricated, and tested. This isolation technique is designed to function between a low voltage microcontroller and a potentially high-voltage power control system. The isolator’s isolation capability is determined by two factors, the RMS blocking voltage strength and common-mode transient immunity. The integrated circuit solution is designed in a high-temperature capable SOI process.
The on-chip transformer size is minimized by utilizing high frequency voltage pulses. A small transformer and overall small chip footprint of the design are favorable for integration into a larger system. The isolator is a two chip solution, an isolated …
Vehicular Motion Sensor: Developing A Wide-Range Motion Sensing Alarm System, 2013 Liberty University
Vehicular Motion Sensor: Developing A Wide-Range Motion Sensing Alarm System, Joshua Isaacson
Senior Honors Theses
Vehicular safety has become a serious concern in recent years. Many drivers have difficulty backing out of parking spaces, especially when large trucks and sport utility vehicles block the peripheral view from smaller vehicles. This can lead to accidents and pedestrian injuries when drivers are unable to see or do not pay careful attention to their surroundings.
Vehicular motion sensor systems can alert drivers of approaching obstacles when attempting to back out of parking spaces with limited visibility. This thesis aims to explain the limitations of current systems and the research conducted by the author to develop a prototype for …
An Ant-Based Sensor Measurement Data Gathering System, 2013 Purdue University
An Ant-Based Sensor Measurement Data Gathering System, Bolun Zhang, Dimitrios Peroulis
The Summer Undergraduate Research Fellowship (SURF) Symposium
Large-scale industries involved with a great amount of sensor measurements in their work are facing many challenges in data collection. Sensors are not on the same network; therefore each measurement has to be managed separately. Gathering all the measurement data to one terminal could be difficult. Once a measurement is obtained, it takes significant amount of time to process the data.The approaches our group takes here is to build a giant ANT wireless network that holds all the sensors’ measurements. To be more specific, every sensor has an ANT chip set up on its side. Each ANT chip is as …