TCS Software Design Review. Have we understood all the requirements? Do we understand all the quirks of the hardware? Is the design capable of doing the.

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Presentation transcript:

TCS Software Design Review

Have we understood all the requirements? Do we understand all the quirks of the hardware? Is the design capable of doing the job? Can it be completed with the available resources? Can it be commissioned in an acceptable time? Can this system be supported & maintained?

Servo system Encoders Drive motors Demand posn (in encoder units) Sky position (in RA,Dec) Coord conversion & Pointing model Autoguider Instrument computer(s)

Rate generator Encoders Drive motors 1970s TCS

Rate generator Encoders Drive motors 1970s CAMAC TCS ICS

Rate generator Encoders Drive motors 1980s CAMAC TCS (TEL) VAX

Rate generator Encoders Drive motors Late 1990s TCS UNIX ?

Rate generator Encoders Drive motors Early 2000s TCS CCSGATE UNIX (PTCS) (THI) Auto- guider

PTCS THI Telescope independent Telescope dependent Hardware GUI Instruments

PTCS THI Telescope independent Telescope dependent Hardware GUI Instruments RA, Dec Encoder units, Motor voltages Axis positions in radians

PTCS THI Hardware GUI Instruments (2) Trigger with axis positions (1) Read encoders (3) Kick with demand positions (4) Servo control

Rate generator Encoders Drive motors Early 2000s TCS CCSGATE UNIX (PTCS) (THI) Auto- guider

Encoders Drive motors 2007 onwards TCS (PTCS) (THI) Auto- guider

1) Drive and Encoders AAT-specific issues

1)Drive and Encoders 2)AAT pointing terms AAT-specific issues

Implementation

Stage 1 Restage Please Initial obey Last stage Finished Restage Stage 2 Restage Please Restage An ADAM/DRAMA Staged Action

Stage 1 Restage Please Initial obey Last stage Finished Restage Stage 2 Restage Please Restage ADAM/DRAMA Concurrent Actions Stage 1 Restage Please Initial obey Stage 2 Restage Please Restage

Stage 1 Restage Please Initial obey Last stage Finished Restage Stage 2 Restage Please Restage ADAM/DRAMA Cancelling an Action Stage 1 Restage Please Initial obey Cancel Finished Cancel ‘Kick’

Testing

Servo loop tests Demand posn (in encoder units) Sky position (in RA,Dec) Coord conversion & Pointing model TPOINT reverse conversion in Simulator Same sky position (in RA,Dec) ?