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GPS Tracking Unit

9/10/2012. ECE-290. 2. Objective. Wireless GPS telemetrySmall rocket payloadPortable ground receiver. 9/10/2012. ECE-290. 3. Statement of Need. Current system does not meet Sponsor requirementsOur goal is to design and implement a working GPS telemetry system including a user friendly interfa

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GPS Tracking Unit

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    1. 9/11/2012 ECE-290 1 GPS Tracking Unit Team Members Nicholas Santamauro Ross Leshikar William Kelly

    2. 9/11/2012 ECE-290 2 Objective Wireless GPS telemetry Small rocket payload Portable ground receiver Rocket Retrieval -Number one priority of the project (our main focus) GPS Tracking Unit -How we are going to track the rocket, talk in general terms about how we plan to place a GPS receiver in the rocket Low cost electronics payload -Because of the high cost of the existing unit, this is basically our statement of need.Rocket Retrieval -Number one priority of the project (our main focus) GPS Tracking Unit -How we are going to track the rocket, talk in general terms about how we plan to place a GPS receiver in the rocket Low cost electronics payload -Because of the high cost of the existing unit, this is basically our statement of need.

    3. 9/11/2012 ECE-290 3 Statement of Need Current system does not meet Sponsor requirements Our goal is to design and implement a working GPS telemetry system including a user friendly interface Existing GPS Tracking System: payload cost is very high $249.95 Low cost rocket payload: Target cost is $25 Existing GPS Tracking System: payload cost is very high $249.95 Low cost rocket payload: Target cost is $25

    4. 9/11/2012 ECE-290 4

    5. 9/11/2012 ECE-290 5 Ground Receiver Receiver design specifications Display latitude and longitude data Weight: 3-5 lbs Dimensions: less than 6 inches wide less than 10 inches long Ten hours of operation time

    6. 9/11/2012 ECE-290 6 Alternative Systems Considered Cons Adv Radio beacon: Only gives direction No line of sight Radio transmitter/ No inherent modulated data Good range Walkie talkies capability low cost FM Hobby Low range (1/4) mile Prototype board transmitters No inherent modulated data Easily modified capability receiver included

    7. 9/11/2012 ECE-290 7 Proposed GPS System Project Aim Greater than one mile tracking range Emphasis on ease of use Longitude / Latitude output Low cost payload design is crucial since the sponsor doesn’t want to lose a lot of money if the rocket CATO’s or is lost in the top of a tree.Low cost payload design is crucial since the sponsor doesn’t want to lose a lot of money if the rocket CATO’s or is lost in the top of a tree.

    8. 9/11/2012 ECE-290 8 System Block Diagram Notice the “Serial Data stream” This is in there since all research indicates that the GPS engines output serial data only Notice the “Serial Data stream” This is in there since all research indicates that the GPS engines output serial data only

    9. 9/11/2012 ECE-290 9 GPS Satellites Satellites transmit 1575.42MHz (UHF) and 1227.6MHz GPS passive signal Signal received via receiver in payload on GPS Board Transmitter power 50W or less

    10. 9/11/2012 ECE-290 10 Implementation Rocket Payload GPS Signal received by GPS board. Signal transmitted by 900 Mhz wireless modem to ground receiver. Most high power payload bays are removable so that the altimeter can be used on several different rockets

    11. 9/11/2012 ECE-290 11 Payload Specs(GPS BOARD) Rikaline GPS-20 5 VDC Weight: .055 lbs Dimensions: Length: 2.8 inches Width: 1.6 inches Depth: .567 inches

    12. 9/11/2012 ECE-290 12 Payload Specs (Wireless modem) Mekatronix RF-232 Transmission range > 1 mile Baud rate: 19.2 kB Weight: 0.053 lbs Dimensions: Length: 2.83 inches Width: 1.6 inches Depth: 0.35 inches

    13. 9/11/2012 ECE-290 13 Ground Receiver Signal sent from Rocket Payload received via wireless modem. Modem connects to PDA Multiple models will work Software on PDA takes data and outputs to the screen

    14. 9/11/2012 ECE-290 14 Ground Receiver Specs Same Mekatronix modem User interface: Palm IIIxe Software: GPSTracker 8 MB memory Dimensions: Length: 4.7 inches Width: 3.2 inches Depth: 0.7 inches Weight: 6 oz.

    15. 9/11/2012 ECE-290 15 Project Timeline

    16. 9/11/2012 ECE-290 16 Proposed Budget Payload price: GPS Board: $48 Wireless modem: $140 Payload Total $188 Ground receiver price: PDA: $60 Wireless modem: $140 Program for PDA: $40 Ground Total $240

    17. 9/11/2012 ECE-290 17 Proposed Budget Miscellaneous Connection/ Converter cables: $37 Power sources: $30 Rocket Decals: $15 Total estimated cost: $510 Our budget $550

    18. 9/11/2012 ECE-290 18 Future Possibilities Interchangeable system Portability between various rockets Speed and Altitude Readings Interface growth through laptops or new forms of PDAs

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