team gary dan farley tyson rogstad erik flum rob koch gary zigmann
Post on 19-Dec-2015
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TRANSCRIPT
Background Information
• Pat Teehan developed the MARV platform to be used by future Electromechanical students for their miniprojects.
• MARV is includes a HC12 microcontroller, a Scorpion XL motorcontroller and two Denso DC gear motors.
• The frame is constructed of 8020 extruded aluminum which allows easily assembly and alteration.
Problem Statement
MARV2 is in an empty room. When MARV2 senses its battery is low, it needs to autonomously recharge its battery.
Solution Statement
• Use mechanical switch to simulate voltage low condition
• Sends MARV into search routine, where it aims to detect a light source
• Motors controlled by output voltages of sensors mounted on front and rear
Docking Station
IR Emitter
AC to DC
BatteryMicrocontrollerMotorcontroller
IR Receiver
MARV
System Overview
Electrical Probe
Mechanical Design of Docking Station
AC to DCIR Controls
Vertical Supports
Alignment BracketsFor IR Emitters
Electrical Connection
Wood Base
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
Personnel Assignments
TYSON Sensors & Emitters
ERIK Power Supply
ROB Docking
DAN Software
GARY Software
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
Budgetpart # estimated cost actual cost for us total estimated total actual
MARV 1 $800.00 $0.00 $800.00 $0.00HC12 1 $120.00 $120.00 $120.00 $120.00CdS Senors 3 $0.50 $0.00 $1.50 $0.00sensor mounts 3 $4.00 $0.00 $12.00 $0.00probes 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
MARV Budget
Charging Station Budget