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EagleEye Golf Ball Finder

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Golf Ball. Finder. James Valfre. Paul Brunner. Krystal Lucas. Anne Grigals. Problem Situation ... Missing golf balls require expending energy and time to find ... – PowerPoint PPT presentation

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Title: EagleEye Golf Ball Finder


1
Eagle-Eye Golf Ball
Finder
  • James Valfre
  • Paul Brunner
  • Krystal Lucas
  • Anne Grigals

2
Problem Situation
  • Missing golf balls require expending energy and
    time to find
  • Lost golf balls cause a monetary expense to the
    player for replacement
  • Lost golf balls result in penalty strokes and
    frustration with the game
  • Golfers searching for missing golf balls cause a
    slow-down in play and less course throughput

3
Requirement Creation
  • Budget
  • Schedule
  • Technology availability
  • Interface
  • Standards
  • Consistency across terrains
  • Reproducibility
  • Time Required to find Ball
  • Physical Damage to Ball
  • System Availability
  • Reliability
  • Safety
  • Justifiable Customer Cost/Maintenance
  • Short Training Time

4
Schedule
Requirements Creation 8/2
Document 2 9/24
Document 6 9/10
Document 3 10/1
Document 5 10/15
All Documents 12/10
5
Concept Exploration
  • (1) Sound-emitting ball
  • (2) Brightly colored ball
  • (3) Dog Chaser
  • (4) Golf Lessons
  • (5) Fixed Sensors on Course
  • (6) GPS ball
  • (7) RF ball
  • (8) Do Nothing

6
Concept Evaluation(using Sum Combining Functions)
Final Score .70 .68 .71 .74 .65 .60 .81 .73
Concept 1 Sound Emitting Concept 2 Brightly
colored Concept 3 Dog Chaser Concept 4 Golf
Lessons Concept 5 Sensors Concept 6 GPS Concept
7 RF Tag Concept 8 Do Nothing
7
Trade Study Criteria
Weights 9 3 4 9 6 5 7 9 10 5 5 7 7 7 6
  • Performance
  • Consistency across terrains
  • Operator reproducibility
  • Time to locate ball
  • Physical damage to ball
  • Availability
  • Reliability
  • Safety
  • Conformity to USGA
  • Utilization of Resources
  • Cost of Design/System
  • System Design Time
  • Operating and Maintenance
  • Selling Price
  • Training Time

8
Scoring Functions for Requirements
9
Scoring Functions Continued
2.0
100.0
10
Sensitivity Analysis
64/36
Performance
Resource
11
RF System
  • Built-in, spherical, semi-active RF tag
  • Handheld locator device
  • Handheld transmits a set RF frequency and
    receives a return signal from golf ball
  • Handheld indicates correct direction

12
RF System
Ball lost in rough. Handheld transmits at set
frequency. Ball absorbs power from magnetic field
and transmits back to hand- held. Player knows
direction to walk.
2.4 GHz
RF Signals at set frequency
13
RF Schematic
Diagram of signal and data flow. Shows how
battery is recharged.
Battery in Tag power-boosts the return signal to
allow system to function over an approximate
range of 100 meters.
14
RF Ball Prototype
Research Indicates Coin-Size RF tags with
integrated thin-film rechargeable battery are
feasible.
15
Requirements Validation Verification
Method D T T T/I A A
Requirement Consistency Across Terrains Operator
Reproducibility Time to Locate Ball Physical
Damage to Ball Availability Reliability
Method Legend D Demonstration T Test I
Inspection A Analysis
16
Requirements Validation Verification
Method A T/D/I A A A A D
Requirement Safety Conformity to USGA Cost of
Design/System System Design Time Operating and
Maintenance Selling Price Training Time
Method Legend D Demonstration T Test I
Inspection A Analysis
17
Test Plan
  • Golfer will hit ball into three coverage areas
    heavy trees, tall grass and sand
  • Five golfers hit a ball and record their search
    time
  • Pro golfer will try to hit a target. This is
    compared against his precision and accuracy with
    a standard ball.

18
System Implementation
  • Research yielded potential designs
  • Trade Study indicated appropriate concept
  • Tests developed to support concept decision
  • System could be ready to build summer 2004

19
Lessons Learned
  • Team could work on a project successfully despite
    not being at same site
  • Customer requirements do drive the concept design
    decision

20
Conclusion
  • Team determined RF tag concept was the best
    alternative
  • Eagle-Eye Golf Ball Finder would meet customers
    needs
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