assembly, integration & verification (aiv)
TRANSCRIPT
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Assembly, Integration & Verification(AIV)
Engineering MeetingOctober 2013Richard Lord and Adam MacLeod
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• AIV Consortium Key Personnel• Work Package Description • Boundaries of Responsibility• Major Milestones• External Interfaces• Precursor Integration – MeerKAT• Precursor Integration – ASKAP
Overview
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AIV Consortium Key Personnel
Organisation Contact Person Role
SKA SARichard Lord Consortium Leader and
SKA1_MID AIV Leader
Thomas Kusel Consortium System Engineer
CSIROAdam MacLeod SKA1_SURVEY AIV Leader
Antony Schinckel Participant
ASTRONJan Geralt bij de Vaate SKA1_LOW AIV Leader
Mark Bentum Participant
SKA Office Peter Hekman SKA Office Point of Contact
Further participants will join the AIV Consortium over time.
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Work Package Description
Planning for all activities at the remote sites that are necessary to:
• Incorporate SKA1 Elements into existing infrastructure.• Integrate all SKA1 Elements into a Telescope System
and verify compliance to engineering requirements.• Integrate Precursors into SKA1:
– MeerKAT Precursor into SKA1_MID– ASKAP Precursor into SKA1_SURVEY
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Work Package Description
I&V Plan
VR
Roll-Out Plan
Contains:• Integration Events• Test Procedures• Resources• ...
• Telescope System Requirements
• Hosting Agreements• Telescope Verification
Plans• Early-Science Plans• Commissioning Plans
1
2
3
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Boundaries of Responsibility
Operational Concept Description
Telescope Requirements Specification
Element Requirements Specification
Component Specification
Design & Manufacture
ComponentAIV
ElementAIV
TelescopeAIV
Commissioning
Component Verification
Element Verification
System Verification
User Requirements Validation
Time
DesignVer
ificati
on
Pre-Construction (Stage 1+2) Construction
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Boundaries of Responsibility
Engineering Development& Production
Commissioning& Early Science
Utilisation, Support& Retirement
AIV Operators,Maintainers
CommissioningTeam
Clear Task LevelBoundary
Lifecycle Stages
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Major Milestones - Stage 1
# Stage 1: Milestone Description Date
1 t0 Nov 2013
2 t0 + 12w Jan 2014
3 Telescope Verification Requirements Apr 2014
4 Telescope Roll-Out Plan (Draft) Jun 2014
5 Input to Re-Baselining Exercise Sep 2014
6 PDR Submission Nov 2014
7 PDR Closure Jan 2015
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Major Milestones - Stage 2
# Stage 2: Milestone Description Date
1 Kick-off Feb 2015
2 Telescope Preliminary I&V Plan Mar 2015
3 Telescope Test Procedures (Draft) Jun 2015
4 Telescope Roll-Out Plan (Final) Sep 2015
5 Telescope Detailed I&V Plan Dec 2015
6 Telescope AIV Resource Establishment Mar 2016
7 Telescope Test Procedures (Final) Jun 2016
8 CDR Submission Jul 2016
9 CDR Closure Sep 2016
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Telescope Verification Requirements
Inputs:• Telescope (Level 1) Requirements
Outputs:• Methods for verification for all telescope-level requirements
(Analysis, Demonstration, Test, Similarity, etc.)• Traceability between Requirements and Verification
Requirements
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Telescope Roll-Out Plan
Inputs:• Hosting Agreements• Installation constraints• Verification plan• Science priorities
Outputs:• A clear roll-out plan for all three telescopes,
1. SKA1_LOW2. SKA1_MID3. SKA1_SURVEY
• that forms the basis for delivery of elements and integration activities.
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Example: SKA1_MID Roll-Out Plan
Array Release #1 AIV
# Dishes: 4
Used for:- Array Testing
Array Release #2 AIV
# Dishes: 32
Used for:- Pulsar- Spectral Line Imaging
Array Release #3 AIV
# Dishes: 64
Used for:- TBD
Array Release #N AIV
# Dishes: TBD
Used for:- TBD
MeerKAT Array Science activities
SKA1_MID number of Dishes accepted on site
SKA
1 El
emen
t ac
tiviti
esPr
ecur
sor
activ
ities
Syst
em a
ctiv
ities
SKA1 Infrastructure and “Signal and Data Transport” roll-out on site and acceptance testing
SKA1_MIDDish Qualification
Roll-out of back-end functionality, verified at corresponding Array Releases(TM, CSP, SDP)
Integration of MeerKAT Dishes into SKA1_MID Array
SKA1_MID Dish Production, on-site installation and acceptance testing
Accepted Dishes released into the array
Release #1 of back-end elements
Release #2 of back-end elements
Release #3 of back-end elements
Release #4 of back-end elements
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Telescope Integration & Verification Plan
Inputs:• Verification Requirements• Roll-Out Plan
Outputs:• Verification Events• Integration Plan, incorporating the Verification Events• Test Procedures and Configurations• Requirements for specialised Test Equipment and Facilities
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Example of an I&V Plan
RFE Stage 3 #1 FATs
RFE Stage 5 #1 FATs
24Aug
RFE Stage 1.5 #1 FATs
Feed/Cryo ATP
VE.1.3.2
15Jul
Pedestal Cntrl FATs
Pedestal CntrlCAM software
ready
RFEATP
EMSSEMSS25Aug
Tell
Tell
21Aug Tell
10Sep
09Sep Tell
14Aug KAT
KAT02Oct
09Oct KAT
KAT26Aug
KAT23Sep
KAT09Oct
RFE
July August September October
RFE
Tell
Tell
Tell
Tell
CSS
EMSSSE
SE
RFE
SE
VE.1.2.2
16Oct
July August September October
Early CSS/Pedestal Controller CAM
integration
CSS
SE
EMSS28Jul
EMSS
Stage 1-7 connected and set-to-work
VE.1.3.3
Integration & Test Events
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Precursor South Africa
Inputs:• Hosting agreements• Discussions with SKA Office and other Element Consortia
Outputs:• Defined set of interfaces and constraints on SKA1_MID,
which will be communicated to other SKA1 Elements by the SKA Office.
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Precursor Australia
Inputs:• Hosting agreements• Discussions with SKA Office and other Element Consortia
Outputs:• Defined set of interfaces and constraints on SKA1_LOW and
SKA1_SURVEY, which will be communicated to other SKA1 Elements by the SKA Office.
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External Interfaces
AIV
TM
SaDT
CSP
INFRA
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Precursor Integration - MeerKAT
MeerKAT Dishes
#1 #64... Weather
Stations
LMC Data
KAPB
TMSaDT
SaDT
TFR
Fibre
CSP
Data Centre
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1) What is ASKAP2) How to integrate ASKAP3) Strategy for integrating ASKAP
Precursor Integration - ASKAP
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What is ASKAP?
ASKAP is a 36 dish telescope- Parabolic dish, 3 axis design- 12m diameter- Baselines ranging from 22m to 6km
ASKAP uses MRO Infrastructure- The control building- Roads- Fibre within the MRO - Trunk fibre to Geraldton- Power reticulation- Weather stations- RFI monitoring
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What is ASKAP?
Each dish comprises a Phased Array Feed (PAF) receiver system- Analog receive chain at the dish focus- Digital receive chain in the MRO control building
Combined, each dish + PAF system provides - 36 Dual-polarisation beams supporting 30 deg2 Field Of View- Aperture efficiency of TBC
Beams from each dish combined at the Correlator
Science Processing & Archiving performed at the Pawsey Centre
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How to Integrate ASKAP
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Strategy for ASKAP Integration
1) Establish signed-off ICDs with other consortia
2) Support SKA1 Elements with interface development
3) Conduct Integration Readiness Review
4) Integrate first ASKAP antenna into SKA1_SURVEY
5) Verify interfaces with SKA1 Elements
6) Integrate remaining antennas
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Thank You