Transcript Ping Project Objectives

Ping Project
Justin Knowles
Kurt Lorhammer
Brian Smith
Andrew Tank
ECEN 4610
Ping Project Objectives
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Complete analysis of putter stroke
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Velocity
Force
Trajectory
3-D motion
Impact location
Club angles
Stand Alone Unit
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Clips onto putter
Ping Inc. Specifications
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Angle Measurements:
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Driver Max Velocity = 150 mph
Putter Max Velocity = 20 mph
+ 0.5 mph - required
+ 0.1 mph - desired
Swing Weight Center of Balance:
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14” from top of shaft
Communication:
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Wireless: 80.211B
Club Weight:
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Speed Measurements:
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Driver max angle = 540
Putter max angle = 100
+ 0.5 - required
+ 0.1 - desired
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Putter Head Weight = 350
grams
Driver Head Weight = 250
grams
Device Weight:
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< 10% of head weight
Marketability
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Ping Inc.
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Will use this technology to customize clubs to meet
individual needs
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Compensation for swings
Weight
Clip On
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Easy to use, can be used with any club
Natural enviroment provides best results
Less than $3000 makes it affordable to the avid golfer
Current Progress
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Determined photo sensors for impact location
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Obtained 3-D positioning system 3DM-G
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IR Reflection Sensors
Combonation of Accelerometers and Gyroscopes
positions in 3-D
Initial prototype testing
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Voltage Curves for IR
Positioning of 3DM-G
Initial Design
Communication System
We plan on designing and implementing a
wireless communication system to replace the
cable link between the 3DM-G and the
computer.
Data-Flow Diagram
3DM-G
Buffer
Computer
Transmitter
Receiver
3DM-G
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Contains:
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Accelerometers (3)
Gyroscopes (3)
Processor
Power
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5.2Vdc min
12Vdc max
52mA current
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Outputs:
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RS-232 interface
100Hz data rate
Acceleration vectors
Angles
Buffer
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Flash Memory
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Used to store the data from the 3DM-G so that the
data can be sent at a slower rate across the
transmission channel.
Processor
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Interface Control between 3DM-G, Buffer, and
Transmitter
Transmission Link
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RF Transmitter/Receiver
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Prefabricated Unit
Serial Port compatible
Frequency and Data Rates
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Typically small for small units
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Data must be stored and sent out at this slower rate
Power Requirements
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Small Power
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Portable clip on system must be light
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Small batteries should be used
Parts used should be light, low power units
Longevity
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Must last a round of golf
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On/Off switch to conserve power
Possible stand-by modes
Projected Problems
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Size and Weight constraints
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Data Rates
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Synchronization between components
Education
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Hard to design to not interfere with putter weight and feel
Digital Signal Processing is a weakness for our group
Communications between departments
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ME/Ping may change design specifications
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Specifically, 3DM-G box may not be used in final project
Contingencies
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Data Rate
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Size and Weight
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Once designed, changing the input (3DM-G) should
have little consequence to overall outputs
Prototype needs to be a proof of concept, and most
components can be manufactured more compact
DSP
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Use more knowledgeable resources
Schedule
Estimated Costs
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Development Costs (per unit)
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Parts: $2k
Labor: Students pay to work: ($8k)
Retail Costs
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Parts: $1.5k
Manufacturing and Marketing: $500
Suggested Retail Price Per Unit: $3.5k
Questions? Comments?