Title: EagleEye Golf Ball Finder
1 Eagle-Eye Golf Ball
Finder
- James Valfre
- Paul Brunner
- Krystal Lucas
- Anne Grigals
2Problem 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
3Requirement 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
4Schedule
Requirements Creation 8/2
Document 2 9/24
Document 6 9/10
Document 3 10/1
Document 5 10/15
All Documents 12/10
5Concept 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
6Concept 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
7Trade 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
8Scoring Functions for Requirements
9Scoring Functions Continued
2.0
100.0
10Sensitivity Analysis
64/36
Performance
Resource
11RF 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
12RF 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
13RF 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.
14RF Ball Prototype
Research Indicates Coin-Size RF tags with
integrated thin-film rechargeable battery are
feasible.
15Requirements 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
16Requirements 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
17Test 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.
18System Implementation
- Research yielded potential designs
- Trade Study indicated appropriate concept
- Tests developed to support concept decision
- System could be ready to build summer 2004
19Lessons Learned
- Team could work on a project successfully despite
not being at same site - Customer requirements do drive the concept design
decision
20Conclusion
- Team determined RF tag concept was the best
alternative - Eagle-Eye Golf Ball Finder would meet customers
needs