ngao controls team kickoff meeting august 5, 2008
DESCRIPTION
NGAO Controls Team Kickoff Meeting August 5, 2008. Erik Johansson. Controls Team. Erik Johansson (Lead) Jimmy Johnson (Technologist) Ed Wetherell (Electronics) Doug Morrison (Software). NGAO Block Diagram. Narrow field (left) and wide field (right) LGS asterisms. - PowerPoint PPT PresentationTRANSCRIPT
NGAO Controls TeamNGAO Controls TeamKickoff MeetingKickoff Meeting
August 5, 2008August 5, 2008
Erik JohanssonErik Johansson
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Controls Team
• Erik Johansson (Lead)• Jimmy Johnson (Technologist)• Ed Wetherell (Electronics)• Doug Morrison (Software)
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NGAO Block Diagram
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Narrow field (left) and wide field (right) LGS asterisms.
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AO system optical layout perspective view
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AO system optical layout (Zemax)
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The image rotator and low order “wide” field relay.
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Laser Guide Star Wavefront Sensor and Interferometer Pickoffs.
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Narrow Field Relay.
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The LOWFS assembly
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LOWFS OSM probe arm.
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Four configurations of the LOWFS OSM arms.
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(a) Zemax model of LOWFS probe arm.(b) Probe arm patrol field.
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Plan view of the LGS object selection /φ pickoff scheme
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LGS WFS assembly enclosure
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Laser facility optical schematic
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Secondary mirror module and Keck I laser launch telescope.
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A distributed controls system block diagram of the NGAO system
Data ServerAtmospheric
ToolsTelescope Interface
Instruments Laser SystemAO SystemLaser Traffic
Control System
ScienceOperations
ToolsData Communications
Infrastructure
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AO controls infrastructure block diagram
UserInterfaces and
Tools
Data ServerInterface
Atmospheric Tools
Telescope Interface
Instrument Sequencer
LaserSequencer
LaserDevices
AODevices
AOSequencer
LTCS
AO Control Laser Control
Pre- and Post-Observing Tools
Multi-SystemCommandSequencer
Data ServerAcquisition, Guiding and
Pointing Control
CmdStatusTelem
CmdStatusTelem
Real-Time Controller
RT DiagsRT Diags
TelemetryTelemetry
Legend:
Non-Real-Time Commands and Data
Real-Time Commands and Data
Real-Time Diagnostic Data (high-speed)UTT
Status
Top level of control
Middle level of control
Bottom level of control
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Motion Control• Vibration sensor (3 DOF)• Calibration source (4 DOF)• Rotator (1 DOF)• LGS WFS assembly (61 DOF)• Dichroic changer (2 DOF)• Interferometer pickoff, pointing and centering (5 DOF)• Acquisition camera pickoff, focus (2 DOF)• LOWFS assembly (22 DOF)• NGS WFS and truth sensor (14 DOF)• Visible imager (5 DOF)• NIR imager (3 DOF)• OSIRIS pickoff (1 DOF)• Laser pointing and centering (36 DOF)• Laser constellation generator (19 DOF)• Other laser motion control (11 DOF)
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Device Control• Detectors
– Vibration sensor– LGS WFS cameras (9)– NGS acquisition camera– LOWFS tip-tilt sensors (2)– LOWFS TWFS camera– LOWFS TTFA camera– NGS WFS camera– NGS TWFS camera
• Mirrors– Woofer DM/TT– Tweeter DM/TT– LOWFS DM/TT (3)– d-IFS DM/TT (6)– UTT mirror (1 or 9)
• RTC control• Environmental control
– Power– Temperature– Humidity– Particulates– Instrument glycol or other cooling
• Laser system control– Diagnostics cameras– Power and environmental control
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AO systems control hierarchy block diagram
AO Devices
AO Control
AO Sequencer
CoordinationSequences
CommandInterface
DataInterface
SystemHealthMonitor
Motion Control Camera ControlEnvironmental
and PowerControl
DM and TTMirror Control
RTC Control
Top-Level Communications Infrastructure
Commands
Status
Telemetry
Optics Bench
DevicesCameras DM/TTs
Env / PowerDevices
RTC
To Data Server
RT DiagsTo data server
To LaserControl
To Acquisition, Guiding and
Offload Control
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Motion control software architecture block diagram
Motion Control
AOSequencer
High-Level Motion Control Sequences
Optics Bench
Devices
LGS WFSMotion Control
LOWFSMotion Control
IF Point & CentControl
NGS FSMControl
ADCMotion Control
Low-Level Motion Control
Generic N-DOFControl
Sequence
Device Driver(s)
Focus ManagerControl
Commands
Status
TelemetryTo Data Server
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Generic device control paradigm block diagram
Device Control
AOSequencer
Device ControlSequence (0)
Device(0)
DeviceDriver
(0)
Telem
Cmd
Status
Device ControlSequence (n)
Device(n)
DeviceDriver
(n)
To Data Server
● ● ●
● ● ●
● ● ●
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Laser system controls hierarchy block diagram
Laser Devices
Laser System Control
Laser Sequencer
CoordinationSequences
CommandInterface
DataInterface
SystemHealthMonitor
Beam Transport Control
Laser ControlEnvironmental
and PowerControl
Laser Camera Control
Laser Safety System
Top-Level Communications Infrastructure
Commands
Status
Telemetry
Laser Optical Devices
LaserLaser
DiagnosticCameras
Env / PowerDevices
LaserSafetySystem
To Data Server
RT DiagsTo data
server
To Laser
Control
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Laser motion control software architecture block diagram
Beam Transport Control
LaserSequencer
High-Level Motion Control Sequences
LaserOpticalDevices
Pointing &Centering
Control
SwitchyardShutterControl
PolarizationWaveplate
Control
ConstellationRotator
Constellation Generator
Control
Low-Level Motion Control
Generic N-DOFControl
Sequence
Device Driver(s)
Other High-Level Motion
Control
Commands
Status
TelemetryTo Data Server
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Acquisition, guiding and pointing control software architecture block diagram
TelescopeInterface
Acquisition, Guiding, and Pointing Control
Pointing Control
Acquisition &Guiding
(MAGIQ I/F)Coma
Offloading
FocusOffloading
Tip-TiltOffloading
AOTelemetry
Offset &AO Loop Control
AO CommandInterface
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Data server architecture block diagram
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Science operations tools block diagram
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Controls WBS Items
• 1.3.3.4 Systems Engineering– SW Architecture (EJ, JJ, DM)
– Controls Systems Architecture (EJ, EW)
• 1.3.4 AO System Design (EW)• 1.3.4.4 AO Controls (EJ, EW, DM)• 1.3.5 Laser (EJ, EW, DM)• 1.3.6 MCS (EJ, JJ, DLM)
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Controls Assignments
• EJ – Overall Lead, Architecture, AO Sequencer• JJ – Technologist, Architecture• EW – Electronics, Motion Control HW• DM – Software, Motion Control SW, AO Sequencer, Device Control
• DM – Work started 7/1/08 (What’s your status?)• JJ – Work started 7/1/08• EW – Work starts 12/08