W M Keck Observatory The next generation of
W. M. Keck Observatory The next generation of EPICS at the W. M. Keck Observatory Presented by Jimmy Johnson, Kevin Tsubota 26 -April-2010 1
W. M. Keck Observatory The Keck Telescope x 2 26 -April-2010 2
W. M. Keck Observatory The Keck Telescope x 2 • 8 Stories Tall • 300 tons • Az-El mount • 10 m segmented Mirror • 36 segments 26 -April-2010 3
W. M. Keck Observatory Overview - definite synergy, common architecture • Two major projects underway – Telescope Control System Upgrade (TCSU) – Next Generation Adaptive Optics (NGAO) • TCS Upgrade project undertaken to: (1) address hardware and software obsolescence of key subsystems, (2) improve telescope pointing and tracking performance (3) improve system reliability and reduce downtime • The goals of the Next Generation Adaptive Optics upgrade for WMKO is to increase strehl performance, up to ~80% in K-band, increase sky coverage with multiple lasers and tomography, and improve angular resolution, sensitivity, and contrast. 26 -April-2010 4
W. M. Keck Observatory Current TCS & AO Architecture • Current TCS system based on the following platforms / architectures – VME based MVME-2304 PPC processor – Vx. Works V 5. 3. 1 operating system – EPICS R 3. 10 framework and tools • Display manager (dm) • Schematic capture tool (xschedit) • Alarm handler (alh) – Sun Workstations, X 11/Motif • Some R 3. 14. 9 unix. IOCs in operation for cryo and ion pump monitoring… • AO is basically the same with some R 3. 13. 0 Beta 12 and Frc 40 68 K processors • No CA Gateways 26 -April-2010 5
W. M. Keck Observatory Explorations EPICS, Common Services Framework (ATST CSF) TANGO 3, Alma Common Software (ACS) 2, JPL Real-Time Control (RTC) PVSS, VSystem, i. Fix (ITER, ASKAP) 26 -April-2010 6
W. M. Keck Observatory Work to date • R 3. 14. 11 running as Soft. IOC on Cent. OS • Telescope Pointing Kernel (new TCSpk, TPK) – Separated Pointing Kernel to standalone soft. IOC – Simple proof of concept with TCSpk/tpk – Use of PCAS as possible alternate to soft. IOC • Converted Keck Barcode reader to use Asyn – With asyn. Serial • Looking at additional drivers (drv. Ascii, ABDF 1. . ) 26 -April-2010 7
W. M. Keck Observatory Areas of interest • • Linux deployment PXI and Ethernet IO Supporting complex data types (i. e. structured data) Built-in request/response (RPC) type of communication UI, Tools, CSS Motor records and PMAC integration Support for bulk data transfer Possible use of DDS for true pub/sub events 26 -April-2010 8
W. M. Keck Observatory Areas of interest • Planned updates in 2 to 3 year time frame • Collaboration opportunities • Relational database integration 26 -April-2010 9
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