MSD I Team P14347 Progress Report Cellphone amp Google Maps I ntegration has been researched amp found to be a viable User Module Circuitry Block D iagrams Established w Pin Connections ID: 590358
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Slide1
Wildlife Tracker: Subsystems Design Review
MSD ITeam P14347Slide2
Progress Report
Cellphone & Google Maps Integration has been researched & found to be a viable User Module
Circuitry Block Diagrams Established (w/ Pin Connections)Enclosure Model CompletedBegan Purchasing Test PartsArrows & Broadheads
Linx
Technologies
Initial
Arrow
Attachment Deviation Experiment ready for trial
Refined Budget
Faculty Review Consultations Completed
Dr.
Amuso
Dr. P.
Venkataraman
Previous Questions:
Burst vs. Continuous Transmission – Burst will utilized for the application (10-15 min. bursts)
FCC Safety Requirements – SAR (Specific Absorption Rate) 1.6 W/kg Slide3
Project Deliverables
Durable re-attachable
tracking device that connects onto an arrowHandheld user device that monitors the location of the GPS attachment ‘Second Chance’ retrieval feature (In case shot is not fatal) Intuitive, easy to understand User ManualSlide4
Functional DecompositionSlide5
Arrow Attachment - Electronics
GPS ReceiverReceive location coordinates from GPS satellitesPower Consumption : 66mW (at 3.3V)
MicrocontrollerTakes data from GPS receiver and converts it to be compatible with RF TransmitterPower Consumption : 5 mW (at 2.5V)RF TransmitterTransmit GPS location from arrow attachment to handheld device
Power Consumption : 9mW (at 3.0V)
Battery
Provide power to Receiver, Transmitter, and Microcontroller
Voltage : 3VSlide6
User Device - Electronics
Receiver: Radio Frequency Size Constraints: Mobile (Easy to Handle)
Power Constraints: MildUser Interface: StraightforwardRF ReceiverReceives GPS
data
from arrow attachment
Power
Consumption :
15mW (at 3.0V)
GPS Receiver
Receive location coordinates
of user
Power Consumption : 66mW (at 3.3V
)
Small LCD Screen
Displays map, user, and location of animal
Microcontroller
Converts
data from
RF
R
eceiver to LCD screen
Power
Consumption : 5
mW
(at 2.5V
)
Battery
(4) AA [1.5V*4 = 6V Power Supply]Slide7
Transmission of Signal
RF Transmitter
Satellite
RF
Receiver
Microcontroller
Arrow Attachment
User Device
GPS Receiver
Microcontroller
LCD Screen
GPS ReceiverSlide8
Transmission of Signal
Must meet FCC RegulationsLow frequency wavesWork better around obstacles (e.g. trees)
Goal is to utilize AM frequency range (535-1705kHz)Transmitter must be low weight, low power consumptionReceiver has more flexibilitySlide9
GPS Receiver
LOCOSYS GPS MC-1612-2R
module
Input voltage: 3.3V
Supply current: ~20mA
-40 to 85 degree Celsius operation
12.2 x 16 mmSlide10
RF Transmitter/Receiver
LR SeriesSmall sizeInput voltage: 3.0V
Supply current: ~3-15mA-40 to 85 degree Celsius operationTransmit/receive RF signalsSlide11
4.3” TFT LCD Screen
Thin-Film-Transistor Liquid-Crystal Display (TFT LCD)Input
Voltage: 4.0VSupply Current: 25mAOperation Temperatures: -20 to 60°C Slide12
Power Consumption
Arrow Attachment Electronics
Device
Power Consumption (
mW
)
GPS Receiver
66
Microcontroller
5
RF Transmitter
9
Total:
80
User Device Electronics
Device
Power Consumption (
mW
)
RF Receiver
15
Microcontroller
5
TFT
LCD
100
Total:
120
Slide13
ID
Risk Item
Effect
Cause
Likelihood
Severity
Importamce
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
stay on arrow during flight or impact
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 circuitry339Keep the circuitry small enough to fit into your palmEric/Joe/Frank6Placement of mechanism onto arrowCause injury/ harm to the user or effect the accuracy of the shotPlacing the device towards the butt of the arrow339Avoid placing the device towards the back or mid section of the arrowTim/Alex
Risk
Assessment ASlide14
Risk Assessment B
ID
Risk Item
Effect
Cause
Likelihood
Severity
Importance
Action to Minimize Risk
Owner
7
Lose of Signal Transmission
Animal
becomes lost
Heavily wooded areas or obstacles blocking
the signal
of the attachment
to the user device
2
3
6
Explore all frequencies for which the RF components
can operate on, and select the frequency which provides the most minimal interference
Eric/Joe/Frank
8
Animal
falling on top of attachment
The
signals from the attachment will be seriously if not completely attenuated
The body of the animal causes a median, for which signals
cannot pass through
2
3
6
Operate
in a range of frequency, which signals can pass through the deer carcass
Team P14347
9
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
10
Part Lead Times
Delays in the projection
Procrastination
2
2
4
Ensure the parts are ordered ahead of schedule
Team P1434711Avoiding Patent InfringementProduct can’t go to marketLack of attention to detail and patents122Be aware and research all current restraints by patents
Team P14347
12
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
13
Budget Conservation
Going over budget
Poor budgeting
1
1
1
Draft and follow a strict budget
Team P14347
14
Geometry of the device
An
alarming
sound,
alerting
the animal
Bulky geometry
1
1
1
Computation model of the aerodynamic drag of the attachment
Tim/
AlexSlide15
iPhone Application
Integration with Google MapsApplication Programming Interface (API
)Web based application (Cellular Service is assumed by Saber)