garage parking indicator iowa state university senior design dec 06-09 faculty advisor: dr. gary...
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Garage Parking IndicatorGarage Parking Indicator
Iowa State University Senior Design Dec 06-09Iowa State University Senior Design Dec 06-09Faculty Advisor: Dr. Gary TuttleFaculty Advisor: Dr. Gary Tuttle
Client: Senior DesignClient: Senior Design
Lars Kulseng (CprE)Lars Kulseng (CprE)Kevin Finck (EE)Kevin Finck (EE)
Richard Seals (CprE)Richard Seals (CprE)
12/05/200612/05/2006
OutlineOutline
Problem DescriptionProblem DescriptionIntended Users and UsesIntended Users and UsesAssumptions and LimitationsAssumptions and LimitationsTechnical DesignTechnical DesignResources and ScheduleResources and ScheduleProject EvaluationProject EvaluationSummarySummary
Problem StatementProblem Statement
The goal is to provide a system to assist a The goal is to provide a system to assist a person in parking a vehicle in a garage in person in parking a vehicle in a garage in two dimensions.two dimensions.
This will be accomplished by having a This will be accomplished by having a device, utilizing a laser pointer, assist the device, utilizing a laser pointer, assist the driver of the vehicle to the correct position driver of the vehicle to the correct position in the garage.in the garage.
DefinitionsDefinitions
GPI – Garage Parking IndicatorGPI – Garage Parking IndicatorLED – Light Emitting DiodeLED – Light Emitting DiodeAC – An electric current that reverses direction AC – An electric current that reverses direction in a circuit at regular intervals. (Alternating in a circuit at regular intervals. (Alternating Current)Current)DC – An electric current flowing in one direction DC – An electric current flowing in one direction only. (Direct Current)only. (Direct Current)Power Adaptor – Converts AC voltage to DC Power Adaptor – Converts AC voltage to DC voltagevoltageLaser - A device that produces a very narrow, Laser - A device that produces a very narrow, highly concentrated beam of light.highly concentrated beam of light.
Operating EnvironmentOperating Environment
To be used indoors or other controlled environments.
Reasonable tolerance to seasonal temperature and humidity changes.
Intended Users and UsesIntended Users and Uses
Any individual who requires assistance in Any individual who requires assistance in parking their vehicle in a garage.parking their vehicle in a garage.
Provide a visual guide to the driver to help Provide a visual guide to the driver to help them park their vehicle.them park their vehicle.
The garage has a door and an electric door The garage has a door and an electric door opener.opener.There is a suitable mounting place for the device There is a suitable mounting place for the device in the garage.in the garage.The same vehicle will be parked in the same The same vehicle will be parked in the same position every time.position every time.The garage door opener includes a standard The garage door opener includes a standard incandescent light bulb which comes on when the incandescent light bulb which comes on when the door opener is activated.door opener is activated.The unit has an unobstructed “line of sight” to the The unit has an unobstructed “line of sight” to the vehicle.vehicle.Vehicle is parked forward into the garage.Vehicle is parked forward into the garage.
AssumptionsAssumptions
One device will provide guidance for two parking stallsOne device will provide guidance for two parking stalls
Installation should be easy, using simple hand toolsInstallation should be easy, using simple hand tools
The system should turn on and off automaticallyThe system should turn on and off automatically
Designed for household power (120V AC)
Nothing is to be mounted on the sidewalls or floor of the garage
Device must retail for less than $40.Device must retail for less than $40.
LimitationsLimitations
End Product and Other DeliverablesEnd Product and Other Deliverables
Functional prototypeFunctional prototype
User manualUser manual
Present AccomplishmentsPresent Accomplishments
ResearchResearch 100%100%
DesignDesign 100%100%
Purchase partsPurchase parts 100%100%
Assembly of prototype Assembly of prototype 100%100%
Write user manualWrite user manual 100%100%
TestingTesting 100%100%
Approaches ConsideredApproaches Considered
Ultra sonic sensorsUltra sonic sensorsLaser distance measurementLaser distance measurementLaser tripwiresLaser tripwiresLaser pointer as a visual guideLaser pointer as a visual guideSound detection for on and off controlSound detection for on and off controlVibration sensor for on and off controlVibration sensor for on and off controlLight detection for on and off controlLight detection for on and off controlUtilize garage door opener as power sourceUtilize garage door opener as power sourceTiming circuit for switchingTiming circuit for switching
Approach UsedApproach Used
Laser pointer as visual guideLaser pointer as visual guide
Use garage door opener to power on and Use garage door opener to power on and off device.off device.
Project Definition ActivitiesProject Definition Activities
Met with client to determine the scope and Met with client to determine the scope and requirements, gather limitations, as well as requirements, gather limitations, as well as determine an overall definition of the determine an overall definition of the project.project.
Research ActivitiesResearch Activities
Existing productsExisting products
Laser vs. LEDLaser vs. LED
Sensor devicesSensor devices
Timing circuitTiming circuit
Laser safetyLaser safety
Design ActivitiesDesign Activities
The design for this project includes a laser The design for this project includes a laser pointer unit, a power supply unit and a pointer unit, a power supply unit and a targeting pad.targeting pad.
Laser Pointer UnitLaser Pointer Unit
The GPI will be a single unit that is installed on the The GPI will be a single unit that is installed on the ceiling or back wall of the garageceiling or back wall of the garage
Two lasers mounted on the outside of the unit will be Two lasers mounted on the outside of the unit will be pointed in a user defined directionpointed in a user defined direction
Class 3A lasers will be usedClass 3A lasers will be used
Power Supply UnitPower Supply Unit
Device is powered Device is powered using the automatic using the automatic lighting of a garage lighting of a garage door opener.door opener.
Targeting PadTargeting Pad
A target pad will be placed on the dashboard of the vehicle to help the A target pad will be placed on the dashboard of the vehicle to help the driver to determine if he or she is in the right positiondriver to determine if he or she is in the right position
The square in the middle will serve as the target for the laser beamThe square in the middle will serve as the target for the laser beam
When the laser is within the square, the driver is within +/- 1 inch of the When the laser is within the square, the driver is within +/- 1 inch of the initial calibration pointinitial calibration point
The extensions on either side of the target pad will provide the driver The extensions on either side of the target pad will provide the driver guidance on how far the car is to the left or to the right.guidance on how far the car is to the left or to the right.
Technical Design Technical Design Installation/MountingInstallation/Mounting
Option 1Option 1 Option 2Option 2
Implementation ActivitiesImplementation Activities
Disassemble laser pointer units (2) without damageDisassemble laser pointer units (2) without damage
Remove components from circuit boardRemove components from circuit board
Solder external power source wires to circuit boardSolder external power source wires to circuit board
Laser pointer housing attached to #6 solid copper wire Laser pointer housing attached to #6 solid copper wire using epoxy/hardener compound (3 surface coatings)using epoxy/hardener compound (3 surface coatings)
Laser pointer unit constructed of plastic project box Laser pointer unit constructed of plastic project box modified for installation of laser pointer mounting wires, modified for installation of laser pointer mounting wires, on/off power switches and power jackon/off power switches and power jack
Mounting screw holes drilled on sides of the boxMounting screw holes drilled on sides of the box
Laser pointer units are attached to plastic box using ¼ inch Laser pointer units are attached to plastic box using ¼ inch bolts and flat washersbolts and flat washers
Laser power leads (-Voltage) attached to power toggle Laser power leads (-Voltage) attached to power toggle switches via 100 ohm resistorsswitches via 100 ohm resistors
Toggle switches common (-Voltage) and leads (+Voltage) Toggle switches common (-Voltage) and leads (+Voltage) are connected to 2.5 mm barrel power jack on side of boxare connected to 2.5 mm barrel power jack on side of box
Mounting screw holes reinforced with epoxy and washers Mounting screw holes reinforced with epoxy and washers
Light bulb socket adaptor provides access to switched 120 Light bulb socket adaptor provides access to switched 120 Volt AC power source from garage door openerVolt AC power source from garage door opener
120 volt extension cable (14 inches) constructed from 120 volt extension cable (14 inches) constructed from standard household extension cordstandard household extension cord
Power adaptor provides 9 volt DC power to laser pointer unitPower adaptor provides 9 volt DC power to laser pointer unit
9 volt DC power source extension cable (18 Feet) 9 volt DC power source extension cable (18 Feet) constructed for back wall installation of laser pointer unitconstructed for back wall installation of laser pointer unit
Side view of garageSide view of garage
Laser turns on automaticallyLaser turns on automatically
Car is in correct position when laser hits targetCar is in correct position when laser hits target
The device will switch off automaticallyThe device will switch off automatically
Testing ActivitiesTesting Activities
An End-Product, End-User test was An End-Product, End-User test was completed in a typical residential garage completed in a typical residential garage to determine usability of the GPI unit and to determine usability of the GPI unit and the user manual.the user manual.
The testing was a success and some of The testing was a success and some of the comments made by the users were the comments made by the users were used to improve the users manual.used to improve the users manual.
ResourcesResources
Items Cost W/O Labor Cost With Labor
Printing Documentation $10.00 $10.00
Lasers $16.64 $16.64
Casing $3.15 $3.15
Power Converters $5.45 $5.45
Other $8.71 $8.71
Subtotal $43.95 $43.95
Hours
Labor at $15.00 per hour
Kulseng, Lars 123 $0 $1,845
Finck, Kevin 166 $0 $2,490
Wiltse, Daniel 75 $0 $1,125
Seals, Richard 92 $0 $1,380
Subtotal $0 $6,840
Total 456 $43.95 $6,883.95
Project ScheduleProject Schedule
Project EvaluationProject EvaluationNumber Milestone Overall Importance Success
1 Problem Definition High Fully Met
2 Research High Fully Met
3 Technology Considerations and Selection Medium Fully Met
4 End-Product Design High Fully Met
5 End-Product Implementation High Fully MetFully Met
6 End-Product User Manual Medium Fully MetFully Met
7 End-Product Testing Medium Fully MetFully Met
8 End-Product Demonstration Medium Fully MetFully Met
9 Project Reporting Medium Fully MetFully Met
CommercializationCommercialization
This product would allow for very low-cost This product would allow for very low-cost production.production.
The street price of the product could also The street price of the product could also be low compared to competitors in this be low compared to competitors in this market because of the low cost to produce market because of the low cost to produce the GPI.the GPI.
Recommendations for Additional WorkRecommendations for Additional Work
Commercialization of the product could be Commercialization of the product could be considered.considered.
Lessons LearnedLessons Learned
What went wellWhat went well– Team interactionTeam interaction– Creative processCreative process– Development of low-tech, low-cost productDevelopment of low-tech, low-cost product
What did not go wellWhat did not go well– Team schedulingTeam scheduling– Finalizing ApproachFinalizing Approach
Risks and Risk ManagementRisks and Risk Management
Loss of a team member(s)Loss of a team member(s)– Redistribute work load to other membersRedistribute work load to other members– Central location for document storageCentral location for document storage
Late arrival of parts or equipmentLate arrival of parts or equipment– Order in advanceOrder in advance– Have alternativesHave alternatives
Equipment damage Equipment damage – Have backup equipmentHave backup equipment
SummarySummary
The garage parking indicator provides a The garage parking indicator provides a low-cost, easy to install solution to allow low-cost, easy to install solution to allow persons who have difficulties parking a persons who have difficulties parking a vehicle, to park a vehicle safely in their vehicle, to park a vehicle safely in their garage.garage.
QUESTIONS?QUESTIONS?