Senior Design 1999-2000

The Aural Shape Shifter

By: Pat Krekelberg, Jared Momose and Josh Simonson
Advisor: Dr. B. Ellis

The AuralShapeShifter is a multifunctional audio signal processing system for pre-amplifier level modifications or post-processing. It was designed to satisfy the requirements of the senior design class at the University and has the following high level specifications. The digital signal processor (DSP) must be programmed with a PC via a serial interface. Software for the DSP shall either be written in assembler or C and will perform algorithmic filter effects such as distortion, reverb, or delay as well as post-processing noise filtering. The computer connected to the DSP shall have real-time algorithm editing capabilities via custom software.

DSP-Based Servo Motor Controller

By: Lance Iverson and Dustin Steffenson
Advisor: Dr. Y. Zheng

The purpose of this project is to build a PC-linked, DSP-based motor controller. The PC will execute a Window's-based graphical user interface that communicates with the control board. The control board is a stand-alone unit. The only power requirement for the system is 120VRMS supplied by any standard outlet. The final product allows the user to easily control both the position and the velocity of a servo motor.

DSP Siren

By: Michael Anderson, John Oberly III and Josh Svoboda
Advisor: Dr. B. Ellis

The DSP Siren is a digital siren for emergency vehicles, compliant with Society of Automotive Engineers (SAE) specifications for sirens. The DSP Siren digitally generates several different sounds using a digital processor. The processor converts the digital signal to an analog signal for speaker output using a coder/decoder (codec). The program that accomplishes this is loaded from an EPROM uses a sine approximation routine to generate the sirens. A computer can control the DSP Siren through an RS-232 link. The DSP Siren outputs through a high-powered speaker using a high-powered amplifier.

Home Automation System

By: Joel Artmann, Aaron Pugh, and Eric Mjolhus
Advisor: Dr. S. Lekhakul

The goal of this senior design project is to introduce the student to the real world environment in which engineers are expected to perform. Some aspects to this goal include group work, project management experience, stress management, and effective project outlook skills. The student is expected to perform adequately while reporting their progress, or lack there of, to their respective advisor.

Voice Activated Computer

By: Brandon Bartz, Andy Fredin and Chun Fan Lung (aka Angus).
Advisor: Dr. P. George

The design and implementation of a voice-activated computer is examined. A voice recognition kit is used as a starting block for building a voice activated computer. This report contains the design procedures used for the construction of a voice responsive computer. The report consists of three sections. The first section describes the construction of the Voice Direct kit. The second section describes the design of the interfacing system. The third section describes the development of a computer program to decode the recognized signals and generate computer commands.

Wireless Remote Access Control and Monitoring System

By: Keith Lovegren, John Rottman and Michael Young
Advisor: Dr. S. Lekhakul

Access control systems using card readers are becoming very popular as a means for companies to regulate employee passage through locked doors. Wireless access control will enable companies to retrofit existing buildings with an access control system while displacing the cost of running wires. The system uses radio frequency transceivers to communicate with a graphical user interface running on a personal computer. This paper discusses the design and implementation of a wireless access control system.

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