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10/18/2006ELM 4071 Miniproject Team Gary Dan Farley Tyson Rogstad Erik Flum Rob Koch Gary Zigmann...
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Transcript of 10/18/2006ELM 4071 Miniproject Team Gary Dan Farley Tyson Rogstad Erik Flum Rob Koch Gary Zigmann...
![Page 1: 10/18/2006ELM 4071 Miniproject Team Gary Dan Farley Tyson Rogstad Erik Flum Rob Koch Gary Zigmann Rob.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d635503460f94a45823/html5/thumbnails/1.jpg)
ELM 4071 Miniproject
10/18/2006
Team Gary
Dan Farley
Tyson Rogstad
Erik Flum
Rob Koch
Gary Zigmann
Rob
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ELM 4071 Miniproject
10/18/2006
Background Information
• Pat Teehan developed the MARV platform to be used by future Electromechanical students for their miniprojects.
• MARV includes a HC12 microcontroller, a Scorpion XL motorcontroller and two Denso DC gear motors.
• The frame is constructed of 8020 extruded aluminum which allows easy assembly and alteration.
Rob
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ELM 4071 Miniproject
10/18/2006
Problem Statement
MARV2 is in an empty room. When MARV2 senses its battery is low, it needs to autonomously recharge its battery.
Rob
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ELM 4071 Miniproject
10/18/2006
Solution Statement
• Use mechanical switch to simulate voltage low condition
• Sends MARV into search routine, where it aims to detect a light source
• Motors are controlled by voltage drop across the sensors mounted on front and rear
Rob
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ELM 4071 Miniproject
10/18/2006
Docking Station
IR Emitter
AC to DC
BatteryMicrocontrollerMotorcontroller
IR Receiver
MARV
System Overview
Electrical Probe
Dan
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ELM 4071 Miniproject
10/18/2006
MARV Finding Docking StationBattery Voltage Is Low, IR Receivers Activated, MARV Spins
Dan
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ELM 4071 Miniproject
10/18/2006
MARV Finding Docking StationReceiver Detects IR Emission
Dan
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ELM 4071 Miniproject
10/18/2006
MARV Finding Docking StationMARV Spins Until Both Receivers Are Equal
Dan
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ELM 4071 Miniproject
10/18/2006
MARV Finding Docking StationMicrocontroller compares rear sensor to front sensor
Dan
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ELM 4071 Miniproject
10/18/2006
MARV Finding Docking StationMARV Reaches Docking Station, Probes Touch Electrical Connection
Dan
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ELM 4071 Miniproject
10/18/2006
Mechanical Design of Docking Station
AC to DCIR Controls
Vertical Supports
Alignment BracketsFor IR Emitters
Electrical Connection
Wood Base
Gary
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ELM 4071 Miniproject
10/18/2006
Mechanical Design of Probes
Gary
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ELM 4071 Miniproject
10/18/2006
Code Flow ChartBattery Low
Check Buttons Spin Left
Compare Front Sensors
Compare Front and Rear Sensor
Go Straight
Stop
Drive Straight
350 ms
Stop Button
Pressed
Vlow On
Rear Sensor Greater Than
or Equal to Front Sensor
Front Sensors
Not Equal
Front Sensors Equal
Front Sensor Greater than Rear Sensor
Gary
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ELM 4071 Miniproject
10/18/2006
Sample CodeJSR Read_ATD1LSRDLSRDLSRDLSRDSTAB Sensor1LDAA Sensor2LDAB Sensor1CBALBEQ TestRear
(Shifting bits to decrease resolution of sensor value)
Find_Home:MOV #31, PWMDTY0MOV #47, PWMDTY1LDD #350JSR Delay_DmsJMP Check_Buttons
(Arcing MARV by driving one motor faster than the other to compensate for spin routine)
Gary
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ELM 4071 Miniproject
10/18/2006
Charging Circuit
On Charging Station
Erik
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ELM 4071 Miniproject
10/18/2006
Infrared Emitter Circuitry
Erik
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ELM 4071 Miniproject
10/18/2006
Sensor Circuit
To HC12
CdS resistor
Erik
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ELM 4071 Miniproject
10/18/2006
Light circuit
Standard Wall Receptacle
Erik
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ELM 4071 Miniproject
10/18/2006
Personnel Assignments
TYSON Sensors & Emitters
ERIK Power Supply
ROB Docking
DAN Software
GARY Software
Tyson
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ELM 4071 Miniproject
10/18/2006
Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8Group upConcepts and Design IdeasResearchBuilding MARVsFinalizing IdeasCharging Circuit(Building and Testing)Sensor/Emitter Circuit (Building and Testing)Testing MotorcontrollerSoftware to HC12Software IdeasMotor SoftwareSensor Detection SoftwarePresentation
Work Breakdown Structure
Tyson
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ELM 4071 Miniproject
10/18/2006
Budgetprobes 1 $5.00 $5.00 $5.00 $5.00probe mounts 1 $3.00 $3.00 $3.00 $3.00wire 1 $5.00 $0.00 $5.00 $0.00stallpoly 1 $3.00 $0.00 $3.00 $0.00IR Sensors 5 $5.00 $5.00 $25.00 $25.00IR Emitter 6 $1.60 $1.60 $9.60 $9.605 minute epoxy 1 $1.00 $0.00 $1.00 $0.00tape 1 $1.00 $0.00 $1.00 $0.00assorted electronic components 1 $1.00 $0.00 $1.00 $0.00bread board 1 $2.50 $0.00 $2.50 $0.00
plywood 1 $9.00 $0.00 $9.00 $0.002x's 1 $4.00 $0.00 $4.00 $0.00steel rails 1 $1.50 $0.00 $1.50 $0.00legs 1 $2.00 $0.00 $2.00 $0.00screws 1 $1.00 $0.00 $1.00 $0.00light 1 $13.00 $0.00 $13.00 $0.00resistor 7 $0.05 $0.00 $0.35 $0.00electolytic capacitor 1 $0.80 $0.00 $0.80 $0.00capacitor 2 $0.30 $0.00 $0.60 $0.00voltage regualtor 1 $2.00 $0.00 $2.00 $0.00transformer 1 $8.00 $0.00 $8.00 $0.00diode 1 $0.05 $0.00 $0.05 $0.00op-amp 1 $0.30 $0.00 $0.30 $0.00LED 1 $0.05 $0.00 $0.05 $0.00bridge rectifier 1 $2.20 $0.00 $2.20 $0.00power resistor 2 $1.15 $0.00 $2.30 $0.00transistor 1 $0.12 $0.00 $0.12 $0.00
total estimated cost: $1,036.87total actual cost: $162.60
Charging Station Budget
Tyson
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ELM 4071 Miniproject
10/18/2006
Questions?
Tyson