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Eagle-Eye Golf Ball Finder James Valfre Paul Brunner Krystal Lucas Anne Grigals Problem Situation Missing golf balls require expending energy and time to find Lost golf balls cause a monetary expense to the player for replacement

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Eagle eye golf ball finder l.jpg

Eagle-Eye Golf Ball Finder

James Valfre

Paul Brunner

Krystal Lucas

Anne Grigals


Problem situation l.jpg
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

Eagle-Eye Golf Ball Finder


Requirement creation l.jpg
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

Eagle-Eye Golf Ball Finder


Schedule l.jpg
Schedule

Requirements

Creation 8/2

Document 6

9/10

Document 2

9/24

Document 3

10/1

Document 5

10/15

All Documents

12/10

Eagle-Eye Golf Ball Finder


Concept exploration l.jpg
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

Eagle-Eye Golf Ball Finder


Concept evaluation using sum combining functions l.jpg
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

Eagle-Eye Golf Ball Finder


Trade study criteria l.jpg
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

Eagle-Eye Golf Ball Finder


Scoring functions for requirements l.jpg

99.0

0.0

0.5

0.0

99.0

1.0

Scoring Functions for Requirements

Eagle-Eye Golf Ball Finder


Scoring functions continued l.jpg

2.0

9.0

50.0

0.2

13.0

Scoring Functions Continued:

2.0

100.0

Eagle-Eye Golf Ball Finder


Sensitivity analysis l.jpg
Sensitivity Analysis

64/36

Resource

Performance

Eagle-Eye Golf Ball Finder


Rf system l.jpg
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

Eagle-Eye Golf Ball Finder


Rf system12 l.jpg

Eagle-Eye

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


Rf schematic l.jpg
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.


Rf ball prototype l.jpg

1.68”

0.75”

0.75”

RF Ball Prototype

Research Indicates Coin-Size RF tags with integrated thin-film rechargeable battery are feasible.


Requirements validation verification l.jpg
Requirements Validation & Verification

Requirement

Consistency Across Terrains

Operator Reproducibility

Time to Locate Ball

Physical Damage to Ball

Availability

Reliability

Method

D

T

T

T/I

A

A

Method Legend:

D = Demonstration

T = Test

I = Inspection

A = Analysis

Eagle-Eye Golf Ball Finder


Requirements validation verification16 l.jpg
Requirements Validation & Verification

Requirement

Safety

Conformity to USGA

Cost of Design/System

System Design Time

Operating and Maintenance

Selling Price

Training Time

Method

A

T/D/I

A

A

A

A

D

Method Legend:

D = Demonstration

T = Test

I = Inspection

A = Analysis

Eagle-Eye Golf Ball Finder


Test plan l.jpg
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.

Eagle-Eye Golf Ball Finder


System implementation l.jpg
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

Eagle-Eye Golf Ball Finder


Lessons learned l.jpg
Lessons Learned

  • Team could work on a project successfully despite not being at same site

  • Customer requirements do drive the concept design decision

Eagle-Eye Golf Ball Finder


Conclusion l.jpg
Conclusion

  • Team determined RF tag concept was the best alternative

  • Eagle-Eye Golf Ball Finder would meet customer’s needs

Eagle-Eye Golf Ball Finder


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