Wildlife Tracker:
Systems Design
Review MSD I
Team P14347
Agenda
Project Background
Customer Requirements
Engineering Requirements
Functional Decomposition
Physical Architecture
Morphological Analysis
Concept Selection
Risk Assessment
Test Plan
Project Plan
Team P14347 & Introduction
Member Role
Eric Peterson Team Leader / EE
Alex Pelkey ME
Joesph Ciccarello EE
Frank Meola EE
Timothy Nash ME
Current State & Issues
Bow and arrow hunting is a popular outdoor
activity. An animal fatally shot with an arrow may
not drop in place
Injured animals can travel substantial distances,
may be difficult to track
Game which has been shot and cannot be found
leads to more animal deaths and inefficient
hunting
Desired State
Wildlife tracking device will be deployed with shot
arrow and detach upon impact
Allows a bow hunter to track fleeing target using
handheld device
Does not negatively impact the accuracy of the
hunter’s shot
Durable and reusable, with long lasting power
source
Leads to less wasteful animal deaths in bow
hunting
Stakeholders Primary Customer: Dr. Eli Saber
Faculty Guide: Art North
End Users: Bow Hunters
Other: Hunting Stores/Distributors, Game Wardens,
Environmental Activists
MSD Team 14347
Project Deliverables
Re-attachable tracking device that connects onto
an arrow
Handheld device that monitors the location of the
tracking device
User Manual
Benchmarking
GameVector Deer Recover System
• $399.99
• 45 Grains (2.9 grams)
• Battery life of 48-72 hours
• Up to two mile range
• Tested for bows shooting up to 300 feet per second
• Currently sold out
Customer Requirements
Customer
Rqmt. #Importance Description
CR1 9 The device locates the wildlife after being shot.
CR2 9 Device detaches from arrow and attaches to wildlife upon impact.
CR3 3 The device functions in heavily wooded areas (2000 meters ideal. 300 meters minimal)
CR4 9 The device does not impede the accuracy of the shot, or at least produces repeatable deviations
CR5 3 The device does not impede the range of the shot
CR6 1 Tracker costs under $50
CR7 3 Arrow attachment is reusable up to ten times
CR8 9 Arrow attachment "sticks" to wildlife with enough force to not fall off
CR9 3 Tracking is active for up to 90 minutes. 30 minutes minimal.
CR10 1 The arrow attachment is one piece
CR11 1 Arm/disarm feature for arrow attachment is present.
CR12 3 Used for for both deer and turkey hunting
CR13 3 Durability/temperature resistance is suitable for Oct.-Dec hunting
CR14 9 Arrow attachment does not fall off due to force of the shot
CR15 9 User device tracks the location of the arrow attachment
CR16 3 Arrow attachment does not generate a noise when shot
Engineering Requirements
rqmt. # Importance Source Function Engr. Requirement (metric) Unit of MeasureMarginal
ValueIdeal Value
S1 3 CR3 System Functionality Transmit Range meters 300 2000
S2 2 CR4, CR5 System Operation Weight grams <5.8 <2.9
S3 1 CR4, CR5 System Operation Aerodynamic Drag Newtons
S4 3 CR8 System Functionality Holding Force (Target) Newtons 1.12 2.24
S5 2 CR14 System Functionality Holding Force (Arrow) Newtons
S6 2 CR13 System Robustness Operational Temperature degrees Celsius 0 to 30 minus 30 to 50
S7 3 CR4 System Functionality Change in Arrow Accuracy mm from center at 20m <50 25
S8 1 CR5 System Functionality Change in Arrow Range % 10 5
S9 3 CR9 System Robustness Operation Time hours 3 12
S10 2 CR7, CR10 System Robustness Product Reusability # of uses 5 10
S11 3 CR1 System Functionality Accuracy of Tracking meters per meter 1 per 50 1 / 100
S12 1 CR6 System Production Prototype Cost $$ 150 100
S13 1 CR6 System Production Manufacturing Cost $$ 90 50
S14 2 CR11 System Functionality Arm / Disarm Feature binary No Yes
S15 1 CR15 System Portability Handheld User Tracking Device binary No Yes
S16 2 CR12 System Functionality Arrow Compatibility % arrows in market 40 100
S17 2 CR4, CR5 System Portability Volume of Arrow Attachment mm 3̂ 75 30
Requirement Mapping Engineering Requirements
Tran
smit
Range
Weigh
t
Aerodyn
amic
Drag
Holdin
g Forc
e (T
arget
)
Holdin
g Forc
e (A
rrow
)
Operat
ional
Tem
perat
ure
Change
in A
rrow A
ccura
cy
Change
in A
rrow R
ange
Operat
ion T
ime
Product
Reu
sabilit
y
Accura
cy o
f Tra
ckin
g
Proto
type C
ost
Man
ufact
uring
Cost
Arm /
Disarm
Feat
ure
Handheld
Use
r Tra
ckin
g Dev
ice
Arrow
Com
patib
ility
Volum
e of
Arrow
Atta
chm
ent
Cu
sto
mer
Nee
ds
The device locates the wildlife after being shot. X
Device detaches from arrow and attaches to wildlife upon impact. X X
The device functions in heavily wooded areas (2000 meters ideal. 300 meters
minimal)X
The device does not impede the accuracy of the shot, or at least produces
repeatable deviationsX X X X
The device does not impede the range of the shot X X X X
Tracker costs under $50 X X
Arrow attachment is reusable up to ten times X
Arrow attachment "sticks" to wildlife with enough force to not fall off X
Tracking is active for up to 90 minutes. 30 minutes minimal. X
The arrow attachment is one piece X
Arm/disarm feature for arrow attachment is present. X
Used for for both deer and turkey hunting X
Durability/temperature resistance is suitable for Oct.-Dec hunting X
Arrow attachment does not fall off due to force of the shot X
User device tracks the location of the arrow attachment X
Arrow attachment does not make a noise when shot X
Cu
sto
mer
Nee
ds
Functional Decomposition Locate Wildlife
Attach to Arrow
Access Arrow
Attach to Wildlife
Does not alter Shot
Detach from Arrow
Link to Animal
Remains attached during
Flight
Protect Functional Integrity
Safeguard Electronics
Indicate Location of Attachment
Device
Transmit Signal
Activate Transmitter
Receive Signal
Activate Receiver
Process and Interpret Signal
Morphological Analysis
Solutions
Sub-
Functions
1 2 3 4 5
Attach to
Arrow Spring-Dowel Pin Clip Adhesive Magnet
Attach to
Wildlife Barbed Hook Pronged Tip
Spring-
Activated
Clamp
Retractable
Prongs
Transmit/Rece
ive Signal Transponder GPS Antenna
Cell Phone
Signal Radio Waves WiMAX
Indicate
Location Audio Speaker Visual-Map
Visual-Blinking
LED Text on Screen Dial Indicator
Protect
Functional
Integrity
Enclosure Potting
Compound Airbags?
Activate
Transmitter Accelerometer On/off switch
Animal Circuit
Activation
Concept Selection
1 2 3 4 5Metrics Importance Spring-Dowel Pin Clip Adhesive Magnet
1 Ease of Design 2 4 2 1 3
2 Effectiveness 1 2 1 4 3
3 Cost 3 4 1 2 3
4 Weight 1 3 2 1 4
TOTAL 25 10 13 22
0.04 0.1 0.076923077 0.045454545
1 2 3 4 5Metrics Importance Barbed Hook Pronged Tip Spring-Activated Clamp Retractable Prongs
1 Ease of Design 2 1 2 4 3
2 Effectiveness 1 2 1 4 3
3 Cost 3 1 2 4 3
4 Weight 1 1 2 3 4
TOTAL 8 13 27 22
0.125 0.076923077 0.037037037 0.045454545
1 2 3 4 5Metrics Importance Transponder GPS Antenna Cell Phone Signal Radio Waves WiMAX
1 Ease of Design 2 2 5 3 1 4
2 Effectiveness (Range) 1 3 1 5 4 2
3 Cost 2 2 4 3 1 5
4 Weight of Transmitter 1 2 5 3 1 4
5 Power Consumption 2 2 5 3 1 4
TOTAL 17 34 26 11 32
Solution
Attach to Arrow
Attach to WildlifeSolution
Transmit/Receive SignalSolution
Concept Selection
1 2 3 4 5Metrics Importance Audio Speaker Visual-Map Visual-Blinking LED Text on Screen Dial Indicator
1 Ease of Design 1 3 5 1 4 2
2 Effectiveness 1 5 1 4 3 2
3 Cost 2 3 5 1 4 2
TOTAL 11 11 6 11 6
0.090909091 0.090909091 0.166666667 0.090909091 0.166666667
1 2 3 4 5Metrics Importance Enclosure Potting Compound Airbags?
1 Ease of Design 2 1 2 3
2 Effectiveness 1 1 2 3
3 Cost 3 2 1 3
4 Weight 1 1 2 3
TOTAL 10 11 21
0.1 0.090909091 0.047619048
1 2 3 4 5Metrics Importance Accelerometer On/Off Switch Animal Circuit Activation Limit Switch
1 Ease of Design 2 1 2 4 3
2 Effectiveness 1 1 3 4 2
3 Cost 3 2 1 4 2
4 Weight 1 1 2 3 4
TOTAL 10 12 27 18
Indicate LocationSolution
Protect Functional Integrity
Activate TransmitterSolution
Solution
Concept Selection Solution Number--> 1 2 3 4 5
Attach to Arrow 2-Clip 2-Clip 2-Clip 1-Spring-Dowel Pin 2-Clip
Attach to Wildlife 1-Barbed Hook 2-Pronged Tip 1-Barbed Hook 2-Pronged Tip 1-Barbed Hook
Transmit/Receive Signal 4-Radio Waves 4-Radio Waves 1-Transponder 1-Transponder 4-Radio Waves
Indicate Location 3-Blinking LED 5-Dial Indicator 3-Blinking LED 3-Blinking LED 5-Dial Indicator
Protect Functional Integrity 1-Enclosure 1-Enclosure 1-Enclosure 2-Potting Compound 1-Enclosure
Activate Trandmitter 1-Accelerometer 2-On/Off Switch 1-Accelerometer 2-On/Off Switch 1-Accelerometer
Concept Selection
Physical Architecture
Risk Assessment ID Risk Item Effect Cause
Lik
elih
oo
d
Se
ve
rity
Imp
ort
an
ce
Action to Minimize Risk Owner
1 Effect on flight of the arrow
The attachment could
cause an inaccurate
shot
The aerodynamics of
the arrow become
faulty
3 3 9
Ensure the aerodynamics of the
arrow are unaffected by the
attachment
Tim/Alex
2 Range of the Device Location of the animal
unknown
The animal becomes
out of range of the
device
3 3 9 Wireless data transmission test Eric/Joe/Frank
3
Enough holding force for
the attachment to the
arrow
Tracker doesn’t attach
to arrow
Not enough holding
force to the arrow 3 3 9
Test by applying a pulling force to
the attachment of the arrow Tim/Alex
4 Unfamiliarity with wireless
Transmitting/Receiving
Difficulties choosing the
best method for signal
translation
Lack of RF/wireless
transmission
knowledge
3 3 9 Seek help from an expert in the
signals field (ie. Dr. Amuso) Eric/Joe/Frank
5 Circuitry size constraint Weight and size of arrow
becomes too robust Unnecessary circuitry 3 3 9
Keep the circuitry small enough to fit
into your palm Eric/Joe/Frank
6 Placement of mechanism
on the arrow
Cause injury/ harm to
the user or effect the
accuracy of the shot
Placing the device
towards the butt of
the arrow
3 3 9 Avoid placing the device towards
the back or mid section of the arrow Tim/Alex
7 Detachability of the device
If the device doesn’t
detach the attachment
could block the
penetration of the shot
Faulty detachment
mechanism 2 2 4
Test the device on different material
surfaces Tim/Alex
8 Avoiding Patent
Infringement
Product cannot go to
market
Lack of attention to
detail and patents 2 2 4
Be aware and research all current
restraints by patents Team P14347
9 Part Lead Times Delays in the projection Procrastination 2 2 4 Ensure the parts are ordered ahead
of schedule Team P14347
11 Durability of attachment
(Reusability)
Device is fragile and
requires replacing
periodically
Weak materials and
poor construction of
device
2 1 2 Ensure that weak, brittle materials
are a last resort Tim/Alex
12 Budget Conservation Going over budget Poor budgeting 1 1 1 Draft and follow a strict budget Team P14347
13 Geometry of the device
Causes an alarming
sound which could alert
the animal
Bulky geometry 1 1 1
Computation model of the
aerodynamic drag of the
attachment
Tim/Alex
Test Plan
rqmt# Function p# Plan
S1 Transmit Range
P1 Two group members will find each other using the transmitter and receiver used for the project and document results
S11 Accuracy of Tracking
S2 Weight P2 Place device on scale, measure
S3 Aerodynamic Drag P3
If necessary, tether device inside of a wind tunnel and measure results from force gauge if arrow range is deemed problematic while experimenting with the archer
S4 Holding Force (Target)
P4 An experienced archer from the archery club will shoot multiple materials and a group member will document results
S5 Holding Force (Arrow)
S10 Product Reusability
S6 Operational Temperature P5 Throw device in freezer and decrease the temperature until device stops working
S7 Change in Arrow Accuracy
P6 An experienced archer from the archery club will shoot multiple arrows with the device attached and will document results with input of the archer
S8 Change in Arrow Range
S12 Prototype Cost
P7 Design product, create B.O.M., get quoted from a few manufacturers
S13 Manufacturing Cost
S9 Operation Time P8 Leave device on and running and document battery life time
S16 Arrow Compatibility P9 Attach device to multiple brands and styles of arrows
Project Plan (Subsystem
Design)
Action Items List
Gain understanding/knowledge of project-specific
fields (archery, RF, etc.)
Begin purchasing and testing
Start maintaining budget
Fill in engineering requirement gaps
Subsystem Design
Questions?