Download - Computer Controlled Observatory Dome
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Computer Controlled Computer Controlled Observatory DomeObservatory Dome
AMJOCH ObservatoryAMJOCH ObservatoryProperty of Michigan Technological UniversityProperty of Michigan Technological University
Team Members:Team Members:
Chris BielinskiChris Bielinski Brad HortonBrad Horton
Lisa Bressler Lisa Bressler Bill SwansonBill Swanson
Adam HintgenAdam Hintgen
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Project StatementProject Statement
To fully automate the MTU Observatory Dome by designing a control interface between the telescope and control computer using software design and hardware implementation. With time permitting, remote operation and automatic weather sensing may be possible.
Project Customer:Michigan Technological University - Dr. Jeffery Burl, Dr. Bruce Rafert
Project Advisor: Dr. Martha Sloan
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Getting Off the Getting Off the GroundGround
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Interviews to Interviews to Determine Current Determine Current SituationSituation
• Dr Jeff BurlDr Jeff Burl• Mirza KolakovicMirza Kolakovic• Richard OlsenRichard Olsen• Dr. Bruce RafertDr. Bruce Rafert• Dr. John SoperDr. John Soper
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Inventory of SuppliesInventory of Supplies
Telescope Computer
• Windows 95
• A-drive: 3.5” floppy
• C-drive: 511MB/73.2MB
• D-drive: 511MB/334MB
• Z-drive: CD-ROM 6x
• 16MB RAM
• Pentium
• 33.6k modem
Dome Computer
• 486, speed not specified
• A-drive: 3.5”floppy
• C-drive:
• DOS
• 8MB RAM
Miscellaneous Supplies
•Two monitors and keyboards
•Mouse
•Ethernet hub
•(2) 12 ft Ethernet cords
•AC-DC power-converter
•Various types of wires and cords given by Physics dept.
Dome Components
•(1) Infrared sensor
•(4) Magnetic sensors + (1) magnet
•Dormeyer™ solenoid
•Leeson Speedmaster™ w/ 9-pin port
•Solenoid junction box
•(4) slip rings
•(1) Leeson DC brushless motor
•Meade LX50 telescope
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Project ConsiderationsProject Considerations
RestrictionsRestrictions• Telescope diameter
vs. door width• Dome drift• Cooperation with
other departments• Weather Conditions• Space constraints
ExpectationsExpectations• Dome/Telescope
synchronization• Neatness • Home position• Remote access• Possible
marketability
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Current StatusCurrent Status as of 11/1/99as of 11/1/99
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Alternative SolutionsAlternative Solutions
Two ComputerSystem
One ComputerSystem
“Solid State”System
Continue with previousgroup’s design
Build on previousgroup’s design
Implementation of a ‘nocomputer’ design
Separate user computerand control computer
Combine control anduser computer for fasterresponse time
More reliable
Split signal to protecttelescope
Minimize space, lessequipment
Added marketability
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Project Schedule
Utilizing the Sure Trak 2.0 Project Utilizing the Sure Trak 2.0 Project Manager softwareManager software
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Sure Trak Schedule
Insert sure trak here
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Task AssignmentsTask Assignments
• Chris Bielinski - rapid integration of computersChris Bielinski - rapid integration of computers
• Lisa Bressler - appropriate utilization of sensorsLisa Bressler - appropriate utilization of sensors
• Adam Hintgen - dynamic creation of softwareAdam Hintgen - dynamic creation of software
• Brad Horton - precise implementation of Brad Horton - precise implementation of controlscontrols
• Bill Swanson - investigative signal interceptionBill Swanson - investigative signal interception
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Dome Automation System Dome Automation System OverviewOverview
• Position: 4 Magnetic Sensors, 1 Position: 4 Magnetic Sensors, 1 magnetmagnet
• Infrared Sensor tracks movementInfrared Sensor tracks movement• Solenoid actuates the door latchSolenoid actuates the door latch• Computer intercepts telescope Computer intercepts telescope
communication and controls dome communication and controls dome movementmovement
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Computer Control Flow Diagram
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Slight Set BackSlight Set Back
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Isolator PlanIsolator Plan
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Software Flow Chart
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ApprovalApproval
Our Isolation plan was finally approved, so the door is now open for us to use the telescope.
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Previous GoalsPrevious Goals
Make up connections for the opto-isolator
Get opto-isolator installed Get computer fixed Update Sure Trak
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Current GoalsCurrent Goals
Finish fixing the computer Test existing system and
components Continue updating final report
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Dome PicturesDome Pictures
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Dome and Door Motor Controls
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Magnetic Sensor
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Infrared Sensor
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Door Latch Actuating Solenoid
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PosterPoster