Advisor:
Zhao Zhang
Team Members:
Chris Chambers
Christopher Reis
Alex Dean
Luke Breuer
SPALDINGGYMNASTICS SCOREBOARD
Client: Spalding Advisor: Zhao Zhang Team: May 13-01
PROBLEM STATEMENTS:
• Client needs a more sufficient way to display multiple event scores.
• The target consumers are athletic venues who hold gymnastic events.
• Adaptable to other indoor events.
FUNCTIONAL REQUIREMENTS• Able to be read from 100’- 200’ away
• Easy transportation (Size matters)
• Powered by external 120 VAC source (General wall outlet)
• Controlled by computer
• Wireless communication from computer to message board (WiFi)
• Message board relatively insulated from elements in indoor facilities (Humidity)
CONCEPT SKETCHMain Ideas• Small enough to transport
• Displays four different event names on the left
• Scrolls through athlete names and scores for each event on the right
CONCEPT OF OPERATION
SYSTEM DESCRIPTION
USER INTERFACEHTML WebsiteReasons:1. The IC we are using will include a
USB port for a WiFi dongle
2. Allows score reports to be accessed via handheld device (If you can connect to the internet)
3. Allows user to use any computer to program the scoreboard
MICRO-CONTROLLER UNITBeagle BoneReasons:1. Embedded Linux (Angstrom Distro)
2. Interfaces with LED Drivers
3. Acts as Ad-Hoc router/HTML Server
4. Enables complex code to be abstracted (USB, TCP/IP, etc)
LED CIRCUIT MATRIXReasons:
1. Reduction of GPI/O pins
2. Persistence of vision
3. Matrix operation
4. Reduction of power consumption
5. Reduction of discrete components
PCB SCHEMATIC
PCB LAYOUT
LED OPTIONS• Four options
• Three Red options
• One RG option
• Vary in luminosity from 54-220 milli-candela
• 1206 Surface Mount packaging (606 for RG LED)
POWER SYSTEMBuck converterReasons:1. Allows 120 VAC Input
2. Convert Down to 12 VDC to power LED’s
3. Use Linear Dropout Regulator to convert to 5 VDC to operate BeagleBone and Driver logic.
FUNCTIONAL BREAKDOWN
NON-FUNCTIONAL REQUIREMENTS
• Powered by a battery source
• Built to withstand outdoor weather conditions
• Ability to be mounted on stands
• Ability to be integrated with other boards
WORK PLANPhase 1 – Small scale testing and proof of concept design – Power consumption analysis
Phase 2 – Large scale hardware layout and design
– Drafting of external components
Phase 3 – Prototyping and assembly of components
Phase 4 – Extensive testing and analysis of prototype
Phase 5 – Report on final results and correction of errors
POSSIBLE DEVELOPMENT ISSUES
Problem 1 – Programming in HTML
– Setting up router
Problem 2 – Code to interface with LED Drivers
Problem 3 – Developing the mounting system
Problem 4 – Time constraint on adding in non-functional requirements
Problem 5 – Network Security
MITIGATION PLAN
HTML/Router – Work with advisor (Dr. Zhang)
LED Drivers – Prototype early in January
Mounting – Develop plan with customer to provide mounting system
Time Constraint–Set realistic time goals, invest in early development work
FACILITY VISIT• Spalding/AAI Manufacturing Facility
(Jefferson, IA)
• Point of Contact: Norm Robbins
• Onsite visit with client’s team
• Tour of assembly lines
• Gained familiarity with Spaldings manufacturing capability
• Discussion of rotary forming capability
BUDGET AND ORDERING
OVERALL IDEA OF PROJECT
Allow athletes and fans to receive live updates of scores either via scoreboard or on the web.
QUESTIONS?
Chris Chambers Alex DeanLuke Breuer Christopher Reis