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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

Eagle-Eye Golf Ball Finder

James Valfre

Paul Brunner

Krystal Lucas

Anne Grigals

problem situation
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
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
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
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
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
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

99.0

0.0

0.5

0.0

99.0

1.0

Scoring Functions for Requirements

Eagle-Eye Golf Ball Finder

scoring functions continued

2.0

9.0

50.0

0.2

13.0

Scoring Functions Continued:

2.0

100.0

Eagle-Eye Golf Ball Finder

sensitivity analysis
Sensitivity Analysis

64/36

Resource

Performance

Eagle-Eye Golf Ball Finder

rf system
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

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
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

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
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
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
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
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
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
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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