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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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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 byGPS board.
Signal transmitted by900 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 RocketPayload received via wireless modem.
Modem connects to PDA
Multiple models will work
Software on PDA takes dataand 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