11
Systems Architecture ProductsCapturing SCaN Legacy Networks in
Architecture Diagrams and Documents
Constellation Orion-to-ISS Mission
NASA Lunar Mission and Communication Networks
SCaN Future Architecture“Architecture is a creative art, even if it is based on an existing legacy system. It is not only for engineering or construction guidance, but it also has to provide insight, intent, and vision, so that it can guide the system in moving forward through continual evolution.”
Dr. Yan Zhao; CGI Federal Director for Enterprise and Solutions Architecture
2
Capturing SCaN Legacy Networks in Architecture Diagrams and Documents
3
SCaN “As Is” ArchitectureAll-View Diagram
Deep Space Network (DSN)Operational Node Connectivity (OV-2)
Deep Space Network (DSN)Operational Information Exchange Matrix (OV-3)
Need-line Identifier
Informa-tion Exchange Identifier
Information Element Name
Scop
e
Accu
racy
Lang
uage
Send
ing
Op
Node
Nam
e an
d Id
entif
ier
Send
ing
OpA
ctiv
ity N
ame
and
Iden
tifie
r
Rec
eivi
ng O
p N
ode
Nam
e an
d Id
entif
ier
Rec
eivi
ng O
p A
ctiv
ity N
ame
and
Iden
tifie
r
1 1a Customer Spacecraft Data
Analysis of Customer Requirements
Customer Mission Operations
Support Service Planning & Scheduling (2)
DSN Operations Center
Support Service Preparation (3)
1 1b Planning & Scheduling Request
Conflict Resolution, DSN Resource Allocation
Customer Mission Operations
Support Service Planning & Scheduling (2)
DSN Operations Center
Support Service Preparation (3)
1 1c Service Schedule Updates
Conflict resolution and realtime DSN operations
Customer Mission Operations
Support Service Planning & Scheduling (2)
DSN Operations Center
Support Service Preparation (3)
2 2a Resource Specs, Availability & Status
Customer gains understanding of DSN assets and services
DSN Operations Center
Support Service Planning & Scheduling (2)
Customer Mission Operations
Support Service Preparation (3)
2 2b DSN Schedules Long Range (years), Mid Range (8-weeks) and Short Range (7-day)
DSN Operations Center
Support Service Planning & Scheduling (2)
Customer Mission Operations
Support Service Preparation (3)
2 2c Accountability Reports
All customer deliverables including real-time and post-pass deliverable
DSN Operations Center
Assess Quality & Performance (5)
Customer Mission Operations
Producer Consumer
Near Earth Network (NEN)Systems Communications Description (SV-2)
7
Space Network (SN)Systems Functional Flow (SV-4)
8
Constellation Orion-to-ISS Mission
9
SCaN Concept of Operations CEV-ISS Missions
• Prelaunch
• Launch/Ascent
• Low Earth Orbit (LEO)
• ISS Operations
• Return to Earth
• Recovery
10
System Communications Description (SV-2)CEV-ISS Mission, Rendezvous-Docking Phase
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SCaN Network Navigation ArchitectureCEV-ISS Mission, Rendezvous-Docking Phase
12
End-to-End IP Network ArchitectureThe Constellation Project has established the initiative to extend communication infrastructures based on IP protocol from ground segment to flight/space segment to achieve interoperability among its elements. SCaN Networks can accommodate IP Service Interfaces to CxP systems.
Orion
PHY
Data Link
Network IP
Transport
Data Exchange
ApplicationsSCaN NISNCx Router
NISN Earth Networks
PHY
DL DL DL
Network IP
DLDL
Network IP
DL
PHY
Data Link
Network IP
Transport
Data Exchange
Applications
MS
SN
IP service interface
PHY PHY PHY PHY PHY
13
NASA Lunar Mission and Communication Networks
14
Rover
LCT
Power Station
NCC & LMOC
LGTs
Habitat
ISRU
EVAs
LRS
LSAM
Science
Beacons
MCCLRS
LRS
CEV
EVAsLSAM
EVAs
Lunar Communication and Navigation Systems
All-View Diagram
Lunar Communication and Navigation Systems (LCNS) Operational Node Connectivity (OV-2)
LMOC Manage links
MCC Monitors,
CoordinatesDirects & Archive
ENCCProvide Analysis &ephemeris services
Manage Networks
Lunar Ground Antenna Terminals
LCNSOtherLCNS Users
InternalUsers
ScienceISRU
PowerProvide Power
Make Fuel
Analyze
LSAM Land on Moon
CEV Traverse to/from Moon
DataControl Status
Telemetry Habitat
RoversTour
Tracking
LCNS Lunar Relay System
DirectivesData
Control
StatusData
Telemetry
Schedules Ephemerides
Data Provide Centralized HabitationFacilities
EVA Astronauts. Robot
Provide Astronaut Support &Explore
Status, Voice,Video, Data
Schedules Ephemerides
Data
VoiceVideoData
ControlMonitoringTelemetryTrackingStatus
LCNS C/NTerminal
Navigation Beacons
Provide LocalLunar Surface CommunicationAnd LRS Access
Status Ephemerides
DirectivesTrackingTiming
TelemetryData
Data Telemetry
1616
«operations»MCC
• SMD• Gov Agencies• Int’l Partners
«system»LCT
«system»CEV
«system»LRS
«human»EVAs
«system»LSAM
«system»LRS
«operations»LMOC
«system»LGT 1
Lunar Communication and Navigation Systems (LCNS) System Communications Description (SV-2)
«systems»Wired
HabitatCrosslink
1
2
3
Wire
«system»ISRU(s)
«system»Power
Earth Space Lunar Surface
«system»LGT 2 «system»
LGT 3
«operations»
LCNS Network
«human»EVAs
«system»Robots
• science• construction
17 - Ka, S
45
67
8
«system»Vehicles
• pressurized• open
18 - Ka, S
19 - S20 - S 21*
22*
23 - 10GE
27 - S
28*29*
30*31*
32*
33*
«human»EVAs
34*
35*
37*36*
«system»LSAM
38*
OpticalSurfaceNetworks
Ka, S
9 -Ku
10 - Ka, S
11 -
Ka, S13 - S
14 - S
12 - Ka, S
15 - K
a, S
16 -
25 - 8
02.11
, .16,
24 - 802.11, .16,
26 - 802.11, .16,
*802.11, .16*802.11, .16
«system»Beacon
• 3 or more units
42, 43, 44 - S
39, 40, 41 - S
17
Moon/Earth Space Network OV-2 diagrams networked together to form a System View (SV-4)
GN Ground Station Nodal Region
Lunar Surface Nodal Region
Lunar Orbit Nodal Region
Scenario: Human on EVA on Moon Conversing with Scientist at GSFC
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Crew Exploration Vehicle System to System Connections (SV-2)
19
RouteWireless
Data (WLAN)
Crew Exploration Vehicle Science Capture Functional Description (SV-4)
Still Camera
DVCamera
RFProcessing
Headsets
WallDisplays
EthernetRouting
DataProcessing
MPEG JPEG
VoIP
Science Sequence
RoutingTables
ScienceCollection
Requirements
ControlVoIP
Conversion
MicrophonesAnalog AudioSensor
802.11
Data
Control on 802.15
1G Ethernet
Storage
RFTransmit
Space Relay Earth
Science Data CollectionScience Data Transport
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SCaN Future Architecture
21
Mars¸
Venus
MercurySun
Uranus
Jupiter
Saturn
Titan
Pluto
Charon
Neptune
SCaN Integrated Communication ArchitectureAll-View Diagram
SCaN µwaveSCaN OpticalNISN
Cx MCC
ISS MCC
NISN
Antenna Array
SCaN Integrated
Service Portal
22
Future SCaN NetworkSystem Interfaces Diagram
Future SCaN Network Customer/Systems Operational Relationship
24
Future SCaN Network Operational Activities Flow (OV-5)
Looking Forward
• System Interoperability
• Cross-Organizational Interfaces and Decision Making Processes
• Software Architecture and Lifecycle
• Horizontal Technical Coordination and Integration
• Architecture Cost-benefit Analysis
• Developing NASA-Wide Architecting Process– Levels and Stages (Definition, Description and Design)
• Architecture Performance and Evaluation
• Integration of Architecture with Requirements and ConOps
• Implementation Follow-up
Credits
Thanks to System Concepts Integration and Planning (SCIP) Project Management for
allowing this work to flourish
Credit to Wes Eddy, Katy Kafantaris, Jeffrey Hayden, and Eric Knoblock for supporting this presentation package