Digital Commons Network^™

Reading Robot, Gillian Watts, Andrew Myers, Sabrinna Tan, Taylor Klein, Omeed Djassemi

General Engineering

Presently, there is an insufficient availability of human experts to assist students in reading competency and comprehension. Our team’s goal was to create an improved socially assistive robot for use by therapists, teachers, and parents to help children and adults develop reading skills while they do not have access to specialists. HAPI is a socially assistive robot that we created with the goal of helping students practice their reading comprehension skills. HAPI enables a student to improve their reading skills without an educator present, while enabling educators to review the student's performance remotely. Design constraints included: physical size, weight, duration …

Culminating Course Progress Report For The Na893 Community Support Center, Yokosuka Naval Base, Japan, Kazuo Miura

Fire Protection Engineering: Culminating Experience Project Reports

This is the culminating project report for the Fire Project Engineering Master’s of Science at California Polytechnic at San Luis Obispo. This project will consider a project for the US military in Japan, JFY893 Community Support Facility, Yokosuka Naval Base. The subject facility consists of a library, education center, family services, and other community services. The Library shall serve as the Main Base Library, keep and store books and provide library services for active duty population, dependents and retirees. The Education Center provides services for advancing of the academic, technical, and vocational education of military personnel of all grades and …

Mug For Tremors, Logan J. Smith, Allen Tecson, Jaret Wedow, Kai Workman

Mechanical Engineering

Melissa Oliver, an occupational therapist at McGuire VA Medical Center, works extensively with veterans who struggle with certain daily activities due to their hand tremors. Hand tremors caused by essential tremor, Parkinson’s Disease, or other physical or neurological impairments can greatly affect an individual’s ability to perform daily tasks. One of these tasks include the ability to handle beverages, as hand tremors can cause excessive sloshing and spilling of liquid. Melissa reached out to find a way to help veterans with hand tremors easily consume liquids. Our team, consisting of Logan Smith, Allen Tecson, Jaret Wedow, and Kai Workman, was …

Electromagnetic Actuator For Camless Engines, Nicholas Olesh, Charlie Thomas Glenwright, Tim Wills De Tone, Darya Daniel Darvish

Mechanical Engineering

This document summarizes the research, objectives, project plan, and design for developing an electromagnetic actuator valve for use in a camless internal combustion engine. While electromagnetic valve actuators have not been implemented into a working product to date, there have been many attempts to research and develop working prototypes. Similar products have been developed, but they do not use purely electromagnetic actuation. This research is significant because it shows the challenge that must be overcome and outlines potential design solutions to the problem. The objectives section highlights the problem statement and what is aimed to be achieved in this project. …

Optical Filter Selector, Camaryn Chambers, Joel Pitzer, Matthew Allen, Callen Schwefler

Mechanical Engineering

One of the many challenges with launching projectiles into space is predicting how the environment in space will affect the trajectory. One way to do this is to look at optical emissions, also known as airglow, which can only be seen from earth with sensitive equipment. By taking measurements of the light from the airglow, properties about the upper atmosphere can be inferred. This is important because variability in the atmosphere can cause variability in space that can affect astronauts and satellites. In order to accomplish this task, optical filters must be used to observe different bands of wavelengths of …

Fox Factory Bearing Assembly Rundown And Torque Automation Project, David Ethan Daley, Eric Michael Forrester, Christopher Enrique Hansen, Riley Jacob O'Connor

Mechanical Engineering

A machine design was created to partially automate the rundown and torque of a Fox Factory shock bearing housing. This machine is needed at the factory to keep line associates safe by reducing ergonomic strains associated with this stage in the shock assembly process. Due to the lack of applicable torque drivers for this operation, an open ended, geared drivetrain was designed to allow for engagement of the bearing housing while allowing clearance for the shock shaft that the bearing rides on. This open drivetrain is held by a structure of linear rails and bearings to allow the line associate …

Exploring Opportunities For A New Community Garden In Santa Fe Springs, Camille Kelem

City and Regional Planning

No abstract provided.

Folded! High-Rise, Alejandra Bravo, Riley Joseph Denis

Architectural Engineering

The authors of this report are undergraduate Architectural Engineering students at California Polytechnic State University in San Luis Obispo. This report documents their experience in an interdisciplinary studio of high‐rise building design and the process by which they produced a schematic design of a high‐rise residential building in San Francisco. It will address the organization of the studio, the development of concept as well as form and structure, the studies and structural analyses, as well as the review process and the competitions the final proposals were entered in, and include some final takeaways from each Architectural Engineering group member.

Rf Power Amplifier, Angel De Jesus Delgado, Rachanon Wajanakunakorn, Andrew John Ferguson

Electrical Engineering

Wireless devices are part of everyday life, cellphones and radio receivers impact more people than any piece of technology. Thus, the respective building blocks continue to advance and achieve better performance. A primary component of all wireless communication systems is the power amplifier that drives the antenna. The Institute of Electrical and Electronics Engineers (IEEE) holds the International Microwave Symposium (IMS) every year where teams compete internationally for the most efficient RF Power Amplifier (PA). Power amplifier technologies strive to maximize efficiency and linearity. Topologies to consider are D, E, F, F-1 and Doherty since they have a maximum theoretical …

High Speed, High Current Monitoring System, Nicolette Lila Ray

Electrical Engineering

Electronics testing requires lengthy data collection and analysis. Streamlining at least part of this process allows resource reallocation, and faster data processing. Verifying a signal’s efficiency is key specification for a component’s datasheet. This project focuses on streamlining data collection when measuring a device’s output current. It combines amplifier design and digital interfacing to perform monitor a device’s output current. A computer-enable interface displays a graphical output current representation. It ensures accurate, high speed, high current measurements while removing a person’s need to manually plot data after testing. A new testing method provides room for company and product growth with …

Distribution Line Multi-Tool, Michael Andrew Garcia, Drew Miller, Sukhdeep Singh, Ritwik Kesavath

Electrical Engineering

Power companies are always interested in the best possible monitoring equipment for their grid. The power line multi-tool developed would aid in the monitoring of the power system’s distribution network. This device assesses the current conditions of distribution power lines. The device is able to measure current, detect downed power lines, as well as recognize fire starting conditions, and have wireless communication for ease of access and installation. Overall this device greatly aids in helping utilities monitor their grid in more detail.

With the increase of dry climates yearly, several utility companies are taking measures to aid in the prevention …

Hvac Fan Control Using Modicon M580, Anthony Tyler, Kevin Shipp

Electrical Engineering

This project is the start of a lab experiment for the Cal Poly San Luis Obispo Electrical Engineering department’s new lab focusing on Programmable Logic Controller's (PLCs). The primary focus is to create a lab where students control a Heating, Ventilation, and Air conditioning (HVAC) system controlled by the Modicon M580 PLC, donated by Schneider Electric. The experiment contains a heat source, which the PLC monitors with a temperature sensor, and a cooling source with multiple fans. Students will learn to use function block diagrams to program the PLC, controlling fan output and regulating the system temperature. The experiment specifications …

Neutrino Detection Antenna, Samuel D. Keechler

Electrical Engineering

Neutrinos carry valuable information about deep space events that researchers can utilize to study the early universe. Since the first neutrino was detected in 1956, it is a relatively new physics research topic. A new state-of-the-art research facility, the Radio Neutrino Observatory in Greenland (RNO-G), was developed to detect Ultra-High Energy (UHE) neutrinos, ones with energy greater than 100 PeV (1015 electronvolts). For reference, this amount of energy lifts an apple 5 cm, or drives a neutrino, a particle 1034 times smaller by mass, near the speed of light [1]. UHE neutrino events typically occur less than five times a …

Robust Drone Landing, Alvin Xuan Quan Chui

Computer Engineering

The growth of drone technology goes with the demands of computer vision. Computer vision provides opportunities for developers to design and create, giving rise to a new innovation. It is also a basis for a full autonomous system when implemented with an intelligent agent. Surveillance drones are installed with cameras, and cameras are the most common approach to computer vision. However, a high-resolution camera with great performance could be expensive, while other low-cost cameras might lack reading accuracy. To improve the performances and maximize a camera’s capability, many different object trackers come into play. This paper will investigate and study …

Wine Sampler, Lance L. Litten

Computer Engineering

Quality testing is an important part of the wine industry. Without proper quality control, thousands of dollars could be wasted on bottling and recalling hundreds of gallons of wine. Due to this, labs are set up that collect wine samples from the tanks in a wine production plant and test them. A big part of this testing is determining exactly what tanks need to be tested and what tanks are at risk. My project aims to help automate this task by collecting data from the tanks wirelessly and keeping track of simple indicators such as pH and temperature. Automating this …

Rchex: A Radio-Controlled Hexapod, Dominique Sayo

Computer Engineering

rcHex is a radio-controlled hexapod with 18 degrees of freedom, capable of positional and rotational body adjustment as well as omnidirectional travel at variable speeds using three common gaits. Its general-purpose design accessible to hobbyists makes rcHex an platform for further development, whether it be experimentation in advanced robotic movement or retrofitting sensors to utilize technologies such as computer vision and artificial intelligence. This report explores some of the design intricacies of hexapod movement, including gait sequencing and the application of inverse kinematics to multi-jointed limbs.

Wind/Hydro Power Generation Simulator, Justin Shaun Otus, Nicholas Joseph Steele, Patrick Daniel Murphy

Electrical Engineering

This project aims to design a wind or hydro power generation simulator. The original scope of this project was to construct a physical simulation apparatus in which wind/water speed data is fed to a microcontroller that adjusts the control voltage of a motor drive. The spinning DC motor would generate power via a coupled generator whose power output would be a scaled down version of wind/hydroelectric generator power output given the same wind/water speed input. Due to Covid-19, the project was altered to be entirely virtual and was made through Simulink in MATLAB. The virtual simulator attempts to mimic physical …

Biometric Identification With Ecg Signals, Connor Lindstrom, Jonathan Wood, Jacob Torchia, Jonathan Lee

Electrical Engineering

This project introduces a new form of biometric identification with an ECG signal with the use of machine learning concepts. The ECG signal makes a good candidate for identification because of its unique characteristics that make it easy to distinguish individuals from one another. A patient who has previously had ECG scans stored in a database before, can be verified using this program. This project has the capability of identifying a person or verifying a person solely using their ECG signal. Utilizing this biometric identification, hospitals would be able to add to the reliability of their identification process. Additionally, companies …

Controller Area Network (Can) Bus Simulator And Data-Logger For In-Vehicle Infotainment Testing, Sandra Roksic

Electrical Engineering

In the infotainment testing environment, various tools simulate a select range of Controller Area Network (CAN) bus signals onto the infotainment workbench. The integration of signal input devices and trace-gathering tools often results in a cluttered workspace and an inefficient testing environment. This project eliminates the need for multiple signal simulators and allows for a single system source for various input CAN-bus messages. This system enables the tester to store output CAN-bus data from the test vehicle for future reference and analysis through the same integrated system. It optimizes the time it takes the tester to complete testing catalogs and …

Single Axis Solar Panel Tracking Mount Using Stepper Motor And Accelerometer Positional Control, Ezra Pramono

Electrical Engineering

Optimal solar panel systems rotate to track the sun, as solar panels operate at their maximum potential when the panel plane is completely normal to the sun’s rays. These tracking systems often using two axes of movement. This project is to design a system that will allow a solar panel to track the sun using only one rotational axis, which saves energy and uses fewer parts. The system tracks the entire range of the sun's motion and has positional feedback to allow control of the solar panel's angle. The position of the tracking system is controllable via an external computer. …

Conducted And Radiated Emi Measurements Of Parallel Buck Converters Under Varying Spread Spectrum Parameters, Elena Postupalskaya, Nathan Wang

Electrical Engineering

The Conducted and Radiated EMI Measurements with Parallel Buck Converters Under Varying Spread Spectrum Parameters research senior project aims to explore the effects from Spread Spectrum Frequency Modulation (SSFM) on the input electromagnetic interference (EMI) or noise of a switching power supply, specifically with LM53601MAEVM hardware. The input EMI is important as the main input bus needs to be clean to provide a reliable source for other sensitive devices connected to it. SSFM can replace a conventional EMI filter and save weight, space, and cost. This project provides a basis in terms of the impacts of variable SSFM in simulation …

Wideband Characterization And Alternate Test Technique For Rf Amplifiers, Hannah Nicole Bonderov, Arthur Yuriychuk

Electrical Engineering

This project requires that we select a high frequency amplifier that most fits the desired specifications of our client, who is hoping to use our data and results for a senior technical elective at Cal Poly SLO. In order to do this, we use an amplifier trade to compare specs for select amplifiers and choose one to use for testing. Through this trade, the ERA-3+ is shown as the best option for us to use in the lab. The ERA-3+ amplifiers are characterized by their s-parameters and metrics of nonlinearity which includes 1dB compression point, carrier to third order intermodulation …

Polyone Smartphone, Joshua Zalmanowitz, Chi Nguyen, Gerome Cacho, Chris Lim

Electrical Engineering

The Poly One Smartphone is a student designed smartphone built to explore the implementation of 5G, provide a hardware solution to ensure personal information security and privacy, and provide longer battery life. The key features of this smartphone include but are not limited to a main cpu, some form of network connectivity in the form of Wi-fi or Cellular Data, calling functionality, a rechargeable battery that works with common power connection protocols, and compatibility with popular applications.

Design And Development Of Laboratory Single-Axis Pv Module Tracker, Helen A. Rice, Delaney Berger, Avishek Maitra

Electrical Engineering

Solar energy is an integral part of the renewable energy industry. Advanced solar farms actively track solar movement and update solar panel angles to maximize the system’s output power. Cal Poly boasts its own Solar Farm that features a single-axis tracking system. Single-axis tracking aims to get panels as close to perpendicular as possible given the panel arrangements and given the time of year. Single-axis tracking is a more robust measurement and tracking option. Single-axis tracking systems usually only have East-West panel arc movement, following the sun’s rotation. Dual-axis trackers have both East-West and North-South panel arc movements. Dual-axis systems …

Efficiency Optimization Of Miso Converter, Gabriel Leonides, Christopher S. Peters, Lauren N. Rotsios

Electrical Engineering

In recent years, there has been a rapidly growing need for sustainable energy sources. This need comes from the increasing threat of climate change, significant population growth, as well as the effort to bring electricity to rural and underdeveloped areas across the world. The DC House project at Cal Poly aims to address these issues. The Multiple Input Single Output (MISO) converter is an integral part of the DC House project. The MISO converter is a system that connects multiple power sources to a DC bus. This allows the DC House to be powered by multiple types of renewable energy …

Engineering A Grapevine Pruning Training Tool For Use In Educational And Professional Environments, Catherine Anne Thornbury

Electrical Engineering

This report documents the design of a field-safe and portable tool that helps field hands identify how many wine grape nodes to prune per cane. This practice allows for a more bountiful harvest. The device indicates to the worker whether to leave one, two, or three nodes on a cane. The device is attachable to a set of industry-standard shears to allow for efficient and cost-effective pruning.

The device add-on can withstand a typical 8-hour workday and is able to be used in bright sun, clouds, and rain. Additionally, the device is able to differentiate between small, medium, and large …

Automated Score Tracking Cornhole Game, Mondona Behroozian, Harrison Overturf, Daniel Hurwitz

Electrical Engineering

Automated Score Tracking (AST) for Cornhole is a wireless system that allows for ease of game flow. Cypress Semiconductor’s new Bluetooth Low Energy (BLE) technology inspired the idea. The CYBT-213043-Mesh evaluation module allows for users to receive real time score data, from round to round. The CYW20819 Bluetooth Module located on the mesh evaluation board integrates the use of components on the module to reduce the use of external components. The Bluetooth module allows for the two game boards to communicate scores for each team per round. The system first needs to accurately award points to each team in order …

Post-Quantum Encryption Benchmark, Jordan David Churi

Electrical Engineering

Recent advancements in quantum computing bring the weaknesses in modern RSA encryption to the foreground. Shor's algorithm, though not implementable on today's quantum computers, shows that RSA asymmetric key encryption is not secure for the coming future. This flaw in the security has prompted the National Institute of Standards and Technology (NIST) to start a search for a new post-quantum encryption algorithm that will be resistant to future quantum computers. There are several implementations of preforming this encryption scheme. One promising technique is using lattices in an application called ring Learning with Errors (rLWE). Several algorithms have been submitted to …

Dc Treasure Box, Michael A. Derrenbacher

Electrical Engineering

An all in one DC resource would enable electronics students to prototype circuits for labs and projects without the need for the lab equipment present on campus. The labs on campus can be physically far, closed, or overcrowded, preventing students from accessing the equipment. Roughly 75% of upper division electrical engineering students do not own power supplies, with even fewer students owning a source measurement unit (SMU). There is a significant need for a product capable of providing standard lab equipment functionality. The functionally this project provides are positive and negative DC power supplies, 4-Quadrant SMU, analog inputs and outputs, …

Creando Un Sitio Web Para Concientizar Cómo Implementar Un Programa Bilingüe, Kylie S. Potter

World Languages and Cultures

This website serves the purpose of educating the community of the process of the implementation of bilingual education programs, specifically dual immersion programs. Because the demand for bilingual education is evidently high in the San Luis Obispo County, it is important for local families and community members to have access to information regarding the implementation process. The website provides detailed information from the book Designing and Implementing Two-Way Bilingual Programs by Calderón and Minaya-Rowe. As bilingual education rises in popularity, it is essential that all members of the community are aware of not only the benefits of bilingual education programs, …