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Disc Golf Disc Locator. Trevor Henry Project Advisor: John Spinelli. What is Disc Golf and Why this project?. What is Disc Golf? Outdoor sport played much like the game of golf Object is to throw the disc into the chain basket in as few throws as possible Why this Project? Save Money - PowerPoint PPT Presentation

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Disc Finder

Disc Golf Disc LocatorTrevor HenryProject Advisor: John Spinelli

1What is Disc Golf and Why this project?What is Disc Golf?Outdoor sport played much like the game of golfObject is to throw the disc into the chain basket in as few throws as possible

Why this Project?Save MoneySave TimeGoals of the Project:Handheld deviceBattery poweredVisual information to tell distance and directionEasy to use

Disc with a ChipTransmits signal using battery powerHas negligible interference with flightTransmitter + Disc < 200 grams (max weight rule)

Disc Used:Innova Star Gator Mid-Range DiscDiameter = 21.2 cmWing width = 1.3 cmRim depth = 1.4 cmWeight = 172.2 grams

Design Process: Adding Weight Experiment

Quarters added to DiscAvg. Distance (5 throws)0153 feet1155 feet2158 feet3163 feet4168 feet5170 feet1 Quarter = 5.6 gramsConclusion: About 28 grams can be added to discDesign Process: Choosing Wireless SystemRFID (Radio Frequency Identification)Passive or ActiveActive TransmitterPhased ArrayDirectional Antenna

What I chose:Active Transmitter & Directional AntennaDiagram of Project:

What I chose: TransmitterRF Link Transmitter 434 MHzAmplitude Shift KeyingRange 500 ft. (perfect conditions)Supply Voltage: 3V 12 VWeight: < 1 QuarterHeight: < 1 inchWidth: < .5 inch

What I chose: ReceiverRF Link Receiver 434 MHzAmplitude Shift KeyingRange 500 ft. (perfect conditions)Supply Voltage: 5VHeight: < 2 cmWidth: < 2 inches

First Step: Communication of Transmitter and ReceiverUsing the data sheets of the chips, the chips were set up and powered on a breadboardTried a non wave signal for input data on transmitterThis did not yield an output on the receiverUsed a 2V peak to peak square wave signal with 1V DC offsetYielded a readable output

Experiment 2: Communication Distance Distance ApartNo AntennaOutput ReadingsAntennaeOutput ReadingsAbout 5 ft.Min: 1.5VMax: 3VMin: 250mVMax:4.2VAbout 20 ft.Min: 1VMax: 3V

Min: 300mVMax: 4V

About 70 ft.Min: 1.94VMax: 2.6V

Min: 780mVMax: 4V

Used oscilloscopes and wave generators between rooms N106 & N100

Experiment 2: Communication Distance

Ongoing Tasks: Attaching Components to Disc3V Button Cell to power transmitterPush button switch to make transmitter activeUse a 555 timer or develop a square wave generator to input data Develop a casing such that components wont be harmed when the disc is thrown

Ongoing Tasks: Handheld Device Attach a switch to turn on and off the deviceDevelop a directional antennaConnect antenna to receiverUse a 5v battery sourceAttach a voltmeter to receiver output so that the user can determine distance to disc

What I learned:Read data sheets carefullyHow to set up voltage sources correctlyTime is deceivingAcknowledgementsAdvisor: Professor John SpinelliLab Manager: Gene DavisonQuestions?Chart121.70.70.2

Max Voltage - Min Voltage Obtained by ReceiverDistance Between Transmitter & ReceiverVoltage (V)

Sheet1Max Voltage - Min Voltage Obtained by Receiver5 Feet220 Feet1.770 Feet0.7100 Feet0.2To update the chart, enter data into this table. The data is automatically saved in the chart.