Fw: [Moims-sc] CCSDS MO Services concept got space qualified today!

[Nestor.Peccia at esa.int]

FYI

----- Forwarded by Nestor Peccia/esoc/ESA on 08/08/2014 11:05 -----


Dear MO-ers, 

We have just finished successfully the ESA METERON OPSCOM-2 experiment. 
During the experiment ESA astronaut Alex Gerst "drove" from the ISS the 
European Ground Prototype Rover (also called Eurobot) on the ground at 
ESTEC, deployed and stowed its robotic arm and took images. 
On the ground the METERON operation teams at ESOC, BUSOC and ESTEC 
monitored the operations and performed coordinated joint commanding, using 
the METERON Operations Environment (MOE), deployed in three geographically 
separated centres. 

Beside being a milestone for the METERON project and for Robotic 
Operations, today's successful OPSCOM-2 experiment is also a milestone for 
our CCSDS MO Services. 

MOE external interfaces have been based on MO services, including standard 
MO M&C services (e.g. Action, Activity and Parameter Services) as well as 
proprietary precursor MO robotic services (e.g. Motion Control, Imaging, 
Manipulation, Command Authority Coordination and File Management 
Services). 
The same MO services were also deployed on the METERON laptop on the ISS 
as part of the software used by Alex to control the rover. 

That is why with todays operations, we can say MO services concept has 
been validated operationally over the space to ground link. 

At implementation level, the METERON Robotic Services, did not use the MAL 
APIs but have been implemented as web services. The implementation was 
however based to a large extent on the MAL, COM and MO service specs. The 
messages were encoded in binary (FastInfoset encoding) and transferred 
over DTN. 

One particular aspect, which may be worth mentioning is that the 
deployment architecture incorporated the concept of service proxy and the 
PUB-SUB pattern was adopted over the space link and on the ground 
successfully. Also we demonstrated that the exact same services were 
consumed at run-time via two different transport protocols (with two 
different encodings) on the ground and over the space link. 

So, I guess now we can all say the MO Services concept is space qualified 
and I trust this will help in increasing the TRL. 

Please do not hesitate to contact me, if you wish any detailed 
information. 

Kind Regards 
Mehran 


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