..

..

spring 2014

.

TheSATNetProject

.

Towards an Open-sourceGround Stations Network

for CubeSats

.

authors:Dr. Ricardo Tubío

Dr. Antonio J. VázquezProf. Jordi Puig

Dr. Naomi KuraharaProf. John Bellardo

contact:rtubiopa@calpoly.edu

04/25/2014

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CubeSat WS

spring 2014

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2/23

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Contents

1 State of the ArtGround Station NetworksCurrent Ground Stations

2 The SATNet ProjectConceptOrganizationRelease 1

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State of the Art

Ground Station Networks

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4/23

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Mercury (USA)

Network Paradigm:client server.Provides: remote GSoperation.GPLv2 version from2003 at SourceForge.Scalability?Scheduling?

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CubeSat WS

spring 2014

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4/23

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Mercury (USA)

Network Paradigm:client server.Provides: remote GSoperation.GPLv2 version from2003 at SourceForge.Scalability?Scheduling?

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CubeSat WS

spring 2014

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4/23

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Mercury (USA)

Network Paradigm:client server.Provides: remote GSoperation.GPLv2 version from2003 at SourceForge.Scalability?Scheduling?

...

CubeSat WS

spring 2014

.

4/23

..

Mercury (USA)

Network Paradigm:client server.Provides: remote GSoperation.GPLv2 version from2003 at SourceForge.Scalability?Scheduling?

...

CubeSat WS

spring 2014

.

4/23

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Mercury (USA)

Network Paradigm:client server.Provides: remote GSoperation.GPLv2 version from2003 at SourceForge.Scalability?Scheduling?

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CubeSat WS

spring 2014

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5/23

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The GSN Network (Japan)

Network Paradigm:client-server.

GMS: Ground StationManagement Service.GROWS: GS RemoteOperation Web Service.

Scalability?Scheduling?

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CubeSat WS

spring 2014

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5/23

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The GSN Network (Japan)

Network Paradigm:client-server.

GMS: Ground StationManagement Service.GROWS: GS RemoteOperation Web Service.

Scalability?Scheduling?

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CubeSat WS

spring 2014

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5/23

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The GSN Network (Japan)

Network Paradigm:client-server.

GMS: Ground StationManagement Service.GROWS: GS RemoteOperation Web Service.

Scalability?Scheduling?

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CubeSat WS

spring 2014

.

5/23

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The GSN Network (Japan)

Network Paradigm:client-server.

GMS: Ground StationManagement Service.GROWS: GS RemoteOperation Web Service.

Scalability?Scheduling?

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CubeSat WS

spring 2014

.

5/23

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The GSN Network (Japan)

Network Paradigm:client-server.

GMS: Ground StationManagement Service.GROWS: GS RemoteOperation Web Service.

Scalability?Scheduling?

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CubeSat WS

spring 2014

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6/23

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The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

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CubeSat WS

spring 2014

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6/23

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The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

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CubeSat WS

spring 2014

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6/23

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The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

...

CubeSat WS

spring 2014

.

6/23

..

The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

...

CubeSat WS

spring 2014

.

6/23

..

The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

...

CubeSat WS

spring 2014

.

6/23

..

The MC3 Network (USA)

Network Paradigm:legacy GCA network.

2 independent servers(scalability?).VPN connection withclients.

Centralizedsupervisedscheduling.Project by the NavalPostgraduate School.Propietary softwarelicense.

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CubeSat WS

spring 2014

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7/23

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The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

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spring 2014

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7/23

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The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

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CubeSat WS

spring 2014

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7/23

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The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

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CubeSat WS

spring 2014

.

7/23

..

The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

...

CubeSat WS

spring 2014

.

7/23

..

The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

...

CubeSat WS

spring 2014

.

7/23

..

The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

...

CubeSat WS

spring 2014

.

7/23

..

The GENSO Network (Europe)

Network Paradigm:hybrid peer-to-peer(P2P).

AUS: centralauthentication.MCC/GSS: distributedpeers.

Distributedscheduling.Transport throughaudio transmission.

Problems with delayand jitter?

Network connectivityproblems (NAT)?

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spring 2014

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8/23

Current Ground Stations

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spring 2014

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9/23

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Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

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CubeSat WS

spring 2014

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9/23

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Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

...

CubeSat WS

spring 2014

.

9/23

..

Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

...

CubeSat WS

spring 2014

.

9/23

..

Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

...

CubeSat WS

spring 2014

.

9/23

..

Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

...

CubeSat WS

spring 2014

.

9/23

..

Current Ground Stations

Specific per-missionhardware support.Not many problemsfor constructing anew station.Networks with a fullGS client:

SW fits GS → you are in.SW inadequate → youare out.

Some clients mightbe an obstacle toaccess the network.

...

CubeSat WS

spring 2014

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10/23

The SATNet Project

Concept

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Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

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CubeSat WS

spring 2014

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11/23

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Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

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CubeSat WS

spring 2014

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11/23

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Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

...

CubeSat WS

spring 2014

.

11/23

..

Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

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CubeSat WS

spring 2014

.

11/23

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Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

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CubeSat WS

spring 2014

.

11/23

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Network Architecture (1)

Network Paradigm:distributed servers.

N-System: main networknode.G-Client: ground stationclient.M-Client: missionoperation client.

Services provided bythe central N-System.Clients: remoteaccess library.

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CubeSat WS

spring 2014

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12/23

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Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

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12/23

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Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

.

12/23

..

Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

.

12/23

..

Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

.

12/23

..

Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

.

12/23

..

Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

.

12/23

..

Network Architecture (2)

Each central nodecreates an isolatedsub-network.Approach similar to IProuters.Users decide tointerconnect nodesfor scalingsub-networks.Nodesinterconnection:

scalability,redundancy,and privacy.

...

CubeSat WS

spring 2014

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13/23

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Comparison

- Mercury GSN MC3 GENSO SATNet

Paradigm ClientServer

ClientServer

LegacyGCA

HybridP2P1

DistributedNetwork

Remote GS data data data audio data2

Federation yes - yes - yesScheduling - - Central Distributed Hybrid3

Security - - Central - Distributed4

Sources SourceForge(2003)

- - - GitHub

License GPLv2 - - - Apache v2

1Initially P2P, finally central server (AUS entity).2Custom protocols in between clients.3Distributed through the central nodes, similar to a cloud computing approach.4Through different subnetworks.

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14/23

Organization

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Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

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CubeSat WS

spring 2014

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15/23

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Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

.

15/23

..

Development Philosophy

Open source(Apache V2).Incremental softwaredevelopment:

4 software releases.1 relase, 1 subset offunctionalities.

GitHub Project:github.com/satnet-project

Feel free to join us!First node to behosted at CalPoly.

...

CubeSat WS

spring 2014

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16/23

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Releases

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spring 2014

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17/23

Release 1

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CubeSat WS

spring 2014

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18/23

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Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

...

CubeSat WS

spring 2014

.

18/23

..

Architecture

Standalone Node →Private Subnetworks.WebServices withDjango (Python 2.7).Database: MySQL.

Clustering possibility forredundancy.

CommunicationsService:

Daemon protocol,Twisted over TLS.Better performance forlower delay.

Operating system:Debian Wheezy.

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CubeSat WS

spring 2014

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19/23

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Screenshot - Database Design

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spring 2014

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20/23

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Screenshot - Add GS

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spring 2014

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21/23

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Screenshot - Add Channel

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spring 2014

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22/23

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Screenshot - GS & Channels

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spring 2014

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23/23

Thanks for your attention!