Senior Design Intro

Electrical Engineering/Computing EngineeringSenior Design Project

The Senior Design Project

The project is a CAPSTONE requirement because it allows you to apply the analytical and synthesis skills you have developed during your undergraduate coursework and appreciate how different areas of the curriculum relate to each other.

It involves- Identification and analysis of a real problem- Design of a hardware or software solution- Construction of the solution

It should be done as a team of 2-4 students

It can be multiple terms


Sources of Project Ideas

Individual StudentsFaculty - often associated with research activities

Check project suggestions link on web site

Jobs or Co-opCompany Contacts

Remember that each group needs to find a facultyadvisor for the project.

Grading – 50% from advisor40% on written and oral reports10% on class participation

Research Interests of ECE Faculty at the University of Pittsburgh

• Signal Processing Group:Prof. Bob Boston: biomedical signal processing, hearing aid algorithmsProf. Luis Chapparro: signal and image processingProf. Amro El-Jaroudi: filtering, communications, speech processingProf. Mahmoud El Nokali: power electronics, IGBT circuit designProf. Steve Jacobs: communications, signal processing, radarProf. Ching-Chung Li: biomedical pattern recognition and image processing

• Device Group:Prof. Kevin Chen: planar lightwave circuits, optical integration, photonic structuresProf. Joel Falk: electronics, optical devicesProf. Hong-Koo Kim: nano-technology, opto-electronicsProf. George Kusic: electronics, power applicationsProf. William Stanchina: high-frequency semi-conductor devicesProf. Minhee Yun: nanotechnology for sensors and devices

• Control:Prof. Guangyong Li: control theory, biosensing, material manipulation at nano scaleProf. Zhihong Mao: control, neural signals, robotics, multi-agent systems

Research Interests of ECE Faculty at the University of Pittsburgh

• Computer Engineering Group:Prof. Alex Jones: low-power digital design, design automation, compilersProf. Steve Levitan: VLSI, parallel computer architecture, Computer Aided

DesignProf. Marlin Mickle: RFID, networks, parallel computation, medical telemetryProf. Jun Yang: 3D chips, Network-on-Chip, new memory technologies, computer

architectureProf. Allen Cheng: embedded systems

• Power & Energy Group:Prof. Gregory Reed: power T&D and energy system; power electronics and

control; energy storage; power generation and renewable energy


What you should gain from Senior Design

• How to define a problem • Experience in teamwork • Prototyping skills• Project scheduling and budgeting experience• Exposure to real workplace problems

– Controlled, we hope

• Conversation for job interviews

• . . . And maybe even a working design


Senior Project RequirementsWritten and oral (class) reports

Proposal includingDescription of problemSchedule and milestones

Progress ReportFinal Report

Poster presentation at Senior Design Expo Last Friday of classes from 1:00 to 3:00 pmPosters will be printed out by the Department. Maximum width on printer is 42”Other faculty will be reviewing posters

Regular meetings with advisor and with me


Scoring Rubric for Senior Design ProjectsOutcome 4 Exemplary 3 Proficient 2 Apprentice 1 Deficient Rating

3c. Graduates will be able to design a system, component or process to meet specified project requirements by:

i. identify specific project objectives based on general project and client requirements

.

ii. gather and use relevant information

iii. generate and analyze alternative by synthesizing and applying approriate engineering knowledge

iv. consider all relevant constraints if applicable.

Economic

Environmental/sustainability

Manufacturability

Ethical/health and safety

Social/political

v. choose the best solution based on technical and economic criteria and considering relevant constraints

3.g. Graduates will demonstrate an ability to communicate effectively – written, oral and presentation skills.

ii. oral presentation

3.b. an ability to design and conduct experiments, as well as to analyze and interpret data

i. experimentation if applicable

ii. data analysis


Implementation of a Thermoelectric GeneratorTeam Members: Raghav Khanna, Ryan Marino

Andy Tomaswick, Usman Mushtaq

ObjectivesDesign of a low-power distributed energy supply for underdeveloped countriesGenerate power utilizing thermoelectric device and heat from cook stovesUse battery to store excess powerIntelligently manage multiple outputsAble to power lights, fans, and other essential low-power appliancesEconomically sustainable and robust design

Faculty Advisors: Dr. Bob Boston, Dr. Lisa Weiland

Final Design

NeedCook stoves are replacing open indoor fires in underdeveloped countriesSolar LED lighting systems do not work in the rainy/winter seasonSolutionThermoelectric power generation

•Maintenance free•Silent in operation•Well suited to take advantage of low grade waste heat•Economically feasible

Cook Stoves

Thermoelectric Generators TEG Power Characteristics

ResultsTEG device able to convert waste heat into power effectively, but only with fan

Multiple LEDs were able to light using TEG power

Microcontroller managed outputs and fan

User has the option of an optional DC output and an optional DC power input


In-store Promotional Display Tracking using RFID Technology

Brandon Cole, Sam Taggart

Sponsor: Norm Elliot, GSK

Advisors: Dr Mickle

Dr. Marx

Purpose: To recommend to GSK a gen-2 RFID tag to replace the tag that they currently use to track their promotional displays.

Benchmarks: Performance of tags, both in air, and attached to the displays, as measured by power consumption, and read distance will allow us to determine which tag is least affected by the cardboard and presents the best readability.

Tags Tested:

Symbol:RFX6000 Series 2” x 4”

RFX6000 Series 4” x 4”

Avery Dennison:AD-220

AD-420

900 905 910 915 920 925 9300

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Minimum Power Threshold vs Frequency

900 905 910 915 920 925 9305

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Maximum Read Distance vs Frequency

900 905 910 915 920 925 9300

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Pow

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Minimum Power Threshold vs Frequency

900 905 910 915 920 925 9305

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Maximum Read Distance vs Frequency

Symbol 4 x 4 – in air

Symbol 4 x 4 – on Sensodyne Display

Test procedure: Test each tag both in air and attached to each of the 4 displays that we were given. Align the display and reader so that the maximum amount of interference would occur. Record power consumption and read distance at each frequency.

Results: The Symbol tags outperformed all of the other tags that we tested. The graphs at right show how the frequency response of the Symbol tag was affected minimally by the Sensodyne display.


Advisor: Dr. Steven JacobsSenior Design Students: Mark Perry, Dan Shero, Abbie ShoemakerIndependent Study Students: Christopher Church, Mike McElhinny, Amal Zenati

Interactive Radio Station Exhibit for the Children’s

Museum of Pittsburgh

Objectives:

Educational Design

Receiver Design

Coverage Area (Professional):

Coverage Area (Kit):

Transmitter• FCC Part 15 Compliance

• AM vs. FM transmission

• Propagation Method

Receiver• Interactive • Educational Value

• Cost • Sustainability

Commercial professional and educational kits were tested with the transmission system described. The professional radio significantly outperformed the radio kit in terms of audio quality and coverage. The receiver design includes the use of a high performance stereo FM chip used in consumer products such as mobile phones and MP3 and CD players. Because of its excellent performance characteristics, it is expected that the receiver will perform more similarly to the professional receiver.

Transmitter Design

A PowerPoint presentation was created to explain the basics of radio and FM to children. The educational material will be used in conjunction with the receiver kits by museum staff to teach the children.

A RadioSign FM Transmitter was selected because of its compliance with FCC Part 15 power regulations. Upon testing, it was determined that the FM transmitter from the radio station to the desired area of coverage was too weak; therefore, a UHF link was implemented

A handheld, cost effective, educational receiver was designed. The RF, IF, and detection stages were placed within a closed box which plugs into a base box containing the power supply. To incorporate a hands-on educational aspect, the audio amplifier was designed to be constructed by children

The Saturday Light Brigade is a weekly radio program produced by the Children’s Museum which is broadcast over FM radio on Saturdaymornings. The objective of this project was to design, build and implement an educational, interactive radio exhibit to allow children to tuneinto a looped broadcast transmitted within the museum throughout the week while learning about radio.

on a breadboard. All sections of the receiver are hard-wired to each other within the base box.

Professional (Grundig) Educational Kit 1st Floor of Museum

Testing and Results

Design Considerations

Basemap Adapted from Drawings Courtesy of Perkins Eastman Architects PC 2002 and the Children’s Museum of Pittsburgh

Basemap Adapted from Drawings Courtesy of Perkins Eastman Architects PC 2002 and the Children’s Museum of Pittsburgh


S O L I D S T A T E L I G H T I N G[TUNABLE WHITE LIGHT USING RED, GREEN AND BLUE LEDS]

PROJECT TEAM:

Dan Kheloussi

Joseph Cappeta

Andrew Gordon

PROJECT ADVISOR:

Dr. William Stanchina

[Chairman, ECE Dept.]

Purpose: To develop a tunable white light device using red, green and blue LEDs for commercial/industrial building applications.

Justification: Energy savings; Emulating sunlight (progression of peak wavelength) increased productivity/morale in workers; Faster learning, higher test scores for students; Faster recovery time in hospitals.

Any color can be matched by a linear combination of three other colors: R, G, B:

C = aR + bG + cB

Creating White Light: Device:

Acknowledgements: ECE Department; Dr. Stanchina; Dr. Boston; Dr. Snoke; Dr. Falk; Dr. Chen; Jim Lyle; Angela Ellis; Michael Buric; James Rapach, Chuan Yang

LED (x3) Board Heat Sync Light Mixer

Results:

Circuitry: PIC LED driver MOSFET drivers

LEDs

6500K 4100K 3000K


Teams

• Teams should not be homogeneous– Analytical / Experimental / Prototyping Skills

• Teams always have a leader– It may move around

• All team members need to be given a chance to contribute

• Teaming skills are not trivial• The grade is essentially a group grade


Funding

There will be limited funding for hardware available through the Department.

Groups can include in their proposals a request for support for any significant major equipment or supplies, including a justification of why it is needed, who the vender should be, and an estimated cost.

The equipment or supplies will normally remain the property of the Department at the conclusion of the project.

Senior Design Intro

Documents

Transcript of Senior Design Intro