• Concept
• Motivation
• Competition
• Tech Specs
• Requirements
• Architecture
• Use Cases
• System States
• Risks
• Error Handling
• Implementation
• Test Cases
• Evaluation
• Lessons
• Fun Stuff
• References
• 18-549 Home

MEMBERS

• Tom Cherry   (tcherry at andrew dot cmu dot edu)
• Jessica Liao   (jliao1 at andrew dot cmu dot edu)
• Seth Rosenblum   (sethr at andrew dot cmu dot edu)
• Matt Wagner   (mlw1 at andrew dot cmu dot edu)

PROJECT CONCEPT

This project will help young children learn how to properly kick a soccer ball. This smart soccer shoe will provide kids feedback in a friendly, easy-to-understand way in order to allow them to improve.

MOTIVATION

Learning how to properly kick a soccer ball is very challenging, especially for kids. Children have short attention spans and coaches can get easily frustrated and sometimes even yell at them. Rather than having a child experience the emotional anguish or discouragement after being screamed at by a coach, our smart shoe will provide colorful feedback in a fun and friendly way.

COMPETITIVE ANALYSIS

• KIXTAR Instructional Soccer Shoes
  

  Designed to teach kids how to cross, pass, and shoot with precision Only indicate where the soccer ball should be kicked No feedback system to indicate if the ball was actually kicked in the right spot Not available for individual purchase

• Instructional Videos
  

  Difficult to watch-and-learn at the same time

• Screaming Coach
  

  Can cause kid to be frustrated, discouraged, sad, and upset

TECHNICAL SPECIFICATIONS

1x LilyPad Arduino Main Board - $21.95 Highly durable, thin, wearable, can be sewn in, washable Microcontroller: ATmega168V Operating Voltage: 2.7V - 5.5V Memory: Flash (1KB), SRAM (1KB), EEPROM (512MB) Clock Speed: 8MHz
3x Flexiforce Pressure Sensor - 25lb - $19.95/each Versatile, durable, super thin, piezoresistive force sensor Customizable, can adjust shape and size Linearity Error: < ± 5% Response time: < 5 microseconds
1x LilyPad Accelerometer - $24.95 Three-axis accelerometer that can detect joint movements, inclination, and vibrations Versatile, thin, flexible, and washable Selectable Sensitivity: ± 3.6g Operating Voltage: 2V - 3.6V
1x LilyPad Tri-Color LED - $7.95 Very bright Versatile, thin, flexible, and washable Simple
1x LilyPad LiPower - $14.95 Small, flat, long-lasting, durable 5V Power Supply Good up to 150mA
1x Polymer Lithium Ion Batteries - $6.95 Small, extremely light (3g) 3.7V at 100mAh Long lasting

• Arduino IDE

• Serial

REQUIREMENTS

Functional

• Detects different types of kicks such as the push pass, chipping, and instep on different parts of the foot
• Estimate the velocity of the kick

• Provide light feedback, varying from gradients of red to green, to user based on the type of kick
• Red = wrong
• Yellow = almost there
• Green = awesome!

ARCHITECTURE

Conceptual Diagram

Architecture

USE CASES (INTERACTION DIAGRAMS)

SYSTEM STATES & TRANSITIONS

RISKS & MITIGATION STRATEGIES

ERROR HANDLING

To be completed.

IMPLEMENTATION DETAILS

To be completed.

TEST CASES

To be completed.

EXPERIMENTAL EVALUATION

To be completed.

LESSONS LEARNED

To be completed.

FUN STUFF

To be completed.

REFERENCES

• Project Proposal and Requirements, Team Project Presentation, February 1, 2008
• Design & Architecture, Team Project Presentation, February 15, 2008
• Mid-semester Project Status, Team Project Presentation, Date TBD
• Test Plan & Experimental Validation Team Project Presentation, March 28, 2008
• Final Project Presentation, Team Project Presentation, Date TBD
• Project Poster, May 2, 2008