Содержание
- 2. Things I Hope To Leave You With Share my experience with the rotor controller project Explain
- 3. Motivation For This Project Developed an interest in LEO (Low Earth Orbit) satellites Led to an
- 4. Low Earth Orbit Satellites Basically LEOs are orbital repeaters AMSAT has a lot of information on
- 5. LEO Satellites Vary In Both Size & Complexity AO-51 (Echo) ~800 km orbit voice repeater PakSat
- 6. Satellite QSOs Are Interesting! There are a lot of “things” involved in working the LEO satellites!
- 7. So Many things – So Little Time! The window for a QSO is often less than
- 8. My Approach To The Project Research the WEB for similar projects Evaluate what I might do
- 9. Why Use A Microcontroller Anyway?
- 10. Choices To Make Features Rotors Software Development tools & Environment Microcontroller
- 11. Desirable Features Work with the Nova tracking software Have 2 main modes: “manual” & “autotrack” Self-calibrate
- 12. The Rotor – You must understand the thing you are trying to control! The Alliance U100
- 13. Yes – You Can Stack Them Azimuth Elevation The ability to put a pipe through the
- 14. Anatomy Of A U100 Rotor #2
- 15. Anatomy Of A U100 Rotor #3 Physical stop tab Pulser Cam
- 16. Anatomy Of A U100 Rotor #4 Motor shaft Gear Pulsing contact Motor Frame Mechanical Stop
- 17. Commercial Controller for the U100 Rotor 10 degree graduations on the dial
- 18. The Original U100 Rotor Schematic Diagram Rotor Control Box Simply replace this with a Microcontroller System
- 19. Model of the U100 Rotor + - 360/ 0 Deg. 180 90 270 2. tics/deg =
- 20. Block Diagram Of the Rotor Controller Front Panel Switches Front Panel LEDs SS relays and Phasing
- 21. A FEW OF THE ATMEGA 16 FEATURES THE DATA SHEET IS 358 PAGES ! – 32
- 22. Microcontroller – Atmel Atmega16 YOU GET A LOT OF FUNCTIONALITY IN A SINGLE PACKAGE
- 23. Microcontroller – Save Time By Buying a Proto board I use this development board for almost
- 24. Partial Schematic of the Rotor Controller System – Rotor interfaces 30 VCT xfmr Solid State Relays
- 25. Front Panel Switches – Interface to the Microcontroller Micro Controller Port assignments (Active low) Port A
- 26. Development Environment Rotor control cable Debug data Serial port Program flash memory using “avrdude” utility Fedora
- 27. Features On My Rotor Control Box 2X16 BACKLIGHTED LCD SPST N.O. Pushbutton N.O. Pushbutton ON-OFF-ON ON-OFF-ON
- 28. Manual Mode - AZ & EL Reading
- 29. Auto track mode – tracking AO-10 satellite
- 30. The Rotor Teststand
- 31. A Look Under The Hood Rotor power Controller Board Xfmr for controller board Phasing caps/SS relay
- 32. A Few Software Statistics ATMEGA 16 Controller 16KBytes Flash (Program) memory 512 Bytes of EEPROM 1
- 33. High Level Software Design BACKGROUND processing every 5 milliseconds Watch every switch in the system Monitor
- 34. Field Day 2008 Satellite Antenna Setup
- 35. Performance Of The Controller Used successfully in last two Field Days Sensitive to drag on the
- 36. Things Left Undone Need to get a better schematic in electronic form Scattered around in a
- 37. Closing Thoughts About Antenna Rotors Pulsers have many issues to consider Resolution - must interpolate Calibration
- 39. Скачать презентацию