Terma Company Profile A CCS for Satellite

Transcription

1 Terma Company Profile A CCS for Satellite OneWeb Production CCS Lines Supplier EGSE OneWeb Element CCS Supplier EGSE Element 2016 ESAW, June 20-21, 2017, ESOC

2 Abstract In the past two years, mega-constellations have become a reality. The use of a production line concept is not new. Projects such as Galileo, Globalstar and others have used production line concepts rather than the one-off approach for many spacecraft, but with the advent of mega-constellations, this takes things a step further. This brings in many challenges for mass production of spacecraft. This includes the testing and verification approach in order to qualify and then produce the many satellites that are needed against hard schedule and financial constraints. For example, the OneWeb constellation requires 648 satellites to deliver the coverage and bandwidth to fulfil its mission. To cope with failures and replenishment for the initial 7 year period, a total of up to 900 will be built. For such constellations, production rates have to dramatically increase to rates of more than one per day. This means that at peak production rates, many spacecraft are simultaneously being tested each one needing to be controlled and monitored and cycled through a suite of tests. This presentation looks at what is needed from a central checkout system to support such production lines, and the improvements that have been made over the years to ensure a CCS is the right tool. 13 June

3 Contents A Traditional EGSE CCS Functions Multi-satellite Case Reducing the cost and footprint Galileo FOC EGSE Deployment Technology SCOS > CCS5 OneWeb 13 June

4 A traditional CCS as part of the overall GSE Single system Single spacecraft Ad hoc re-use Transportable 13 June

5 CCS Functions Repositories for: Preparation Artefacts (TM/TC Definitions, Test Sequences, Mimic Diagrams) Results Light but effective Configuration Control to support quick iterations Usable by test engineers Also support subsystem, payload and instrument level activities Always highly automated Repeatable Test as you fly 13 June

6 Multi-satellite Case Even a single satellite has parallel activities (e.g EM and PFM) Ad hoc solutions were implemented to manage such activities with more than one system (often at different sites) Centralised repository Execution can be local or remote Many deployment options 13 June

7 Reducing Cost and Footprint Galileo IOV 4 spacecraft -> 14 systems (14 racks) Galileo FOC 22+ spacecraft -> 26 systems, 7 racks (could be less), higher availability Virtualisation High availability Small footprint (Blade technology) 13 June

8 Galileo FOC EGSE Deployment Investigation & Repair Island Satellite Config 1 Satellite Config 2 Satellite Config 5 FE WS Island 1 TSC Rack KVM MTP 1553 FE TMTC FE FE Switch WS Switch AIV FE WS SCOE Power SCOE Pyro Power SCOE AOCS Pyro Power AOCS Pyro AOCS Payload EGSE Payload EGSE UVT Payload COTE EGSE UVT Payload COTE (UVT) (COTE) Island 2 TSC Rack KVM MTP 1553 FE TMTC FE x2 FE Switch WS Switch AIV AIV FE WS Island 5 TSC Rack KVM MTP 1553 FE TMTC FE x2 FE Switch WS Switch Test Preparation (TDHS WS ) AAS-I office PC (SAMBA cllients) x8... AAS-I Galileo ( Galileo secured - TBC) 10/100Mb/s TDHS servers & WS fully interchangeable identical boot installation TDHS Rack Time Signal Generator TDHS MTP SERVER SPARE SERVER network equipment Mains Isolation Unit ALS General Site Wide Network, and WWW ( not Galileo secured - TBC) 10/100 Mb/s 5x IRIG-B FE FE Switch Network equipment Firewall (internal) WS Switch Firewall (external) FAC WS Remote NAS ½ TB RAID1 Island concept - production line Environmental testing Development systems 13 June

9 Technology: SCOS > CCS5 Up to Galileo FOC, this was all achieved with systems based on SCOS However: - Big system large code base - Limitations for necessary extensions - Higher performance missions => Decision to make a new system: - re-use good aspects of SCOS-2000 architecture - New code base (QT, C++, tcl) - Right-sizing capability - Easy to extend, plug-ins/drivers for different Ground Segment and EGSE protocols - Ease of deployment an important requirement - Standards (CCSDS/ESA/ECSS TMTC, S2K MIB ) => Results: - TSC (single user), CCS5 (Multi-user) same code base - TSC - BCMIS 2010, CCS5 (AIT) IXV 2012, CCS5 (Operations) Theos New MMI & features Higher performance Future proof Easy to deploy Affordable Compatibility 13 June

10 OneWeb 900 satellites two production sites in Toulouse and Florida The satellite design and the production approach are qualified prior to mass production. Significant number of satellites being tested simultaneously. Logistics and configuration management aspects of great importance (do we know which spacecraft we are testing?) CCS needs to interface to and be integrated with the production system which is significant and specific for OneWeb Added tools and applications for having an overview of what is going on in the production line. Deliveries started November 2016 and will continue through to early 2018 with the final deliveries to the Florida site 13 June

11 OneWeb CCS Compact Flexible Open Expandable Redundancy 13 June