spacecraft database standardisation an omg initiative l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE PowerPoint Presentation
Download Presentation
SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE

Loading in 2 Seconds...

play fullscreen
1 / 14

SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE - PowerPoint PPT Presentation


  • 430 Views
  • Uploaded on

SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE Mario Merri - ESA/ESOC Roger Thompson - Science Systems (Space) Ltd . Janice Champion - Boeing Satellite Systems Gerry Simon - Lockheed Martin , USAF SMC Det 12 VO Peter Shames - Jet Propulsion Laboratory Mike Rackley – NASA / GSFC

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE' - daniel_millan


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
spacecraft database standardisation an omg initiative

SPACECRAFT DATABASE STANDARDISATION: AN OMG INITIATIVE

Mario Merri - ESA/ESOC

Roger Thompson - Science Systems (Space) Ltd.

Janice Champion - Boeing Satellite Systems

Gerry Simon - Lockheed Martin, USAF SMC Det 12 VO

Peter Shames - Jet Propulsion Laboratory

Mike Rackley – NASA/GSFC

Jim Wetherbee - OMG Space Domain Task Force

agenda
Agenda
  • Introduction
  • The need of spacecraft database standardisation
  • Approach to work
  • Packaging database
  • Telemetry database
  • Command database
  • Conclusions

SpaceOps 2002

object management group omg and space
Object Management Group (OMG) and Space
  • OMG:
    • Founded in April 1989
    • international not-for-profit software consortium aiming at setting standards in the area of distributed object computing
    • Vendor-neutral membership-driven organisation
    • About 800 members
    • Fast track standardisation process
    • More at http://www.omg.org
  • OMG Space Domain Task Force (DTF)
    • Established in September of 2000
    • Aimed atfostering the emergence of cost effective, timely, commercially available and interoperable space, satellite and ground system domain software components through object technology
    • More at http://space.omg.org

SpaceOps 2002

space dtf main activities
Space DTF Main Activities
  • Developed reference architecture
    • More at http://space.omg.org/ReferenceArchitecture.htm
  • Produced Requests for Proposals:
    • RFP-1: Telemetric and Command Data Specification
    • RFP-2: Monitor and Control Data Access
  • Evaluated submissions to RFP-1

SpaceOps 2002

tm tc data exchange

Design &

Build

Integration& Check-out

LEOP

Operations

Data

Exploitation

Simulators

TM/TC Data:

XML Exchange

Operations:Major Upgrades

Anomaly

Investigation

TM/TC Data Exchange

SpaceOps 2002

rfp 1 problem statement
RFP-1: Problem Statement
  • TM and TC definitions must be exchanged
    • within/across organisations
    • within across systems
  • but …
    • single mission supported by different systems and organisations
    • multiple heterogeneous missions supported by common ground segment infrastructure
  • implying that TM and TC exchange …
    • is difficult, costly and error-prone
    • requires custom translation and ingestion of the TM and TCdata
    • requires revalidation at each step
  • Solution
    • transparent transition from one ground system to another
    • standardization of the TM and TC data definition format

SpaceOps 2002

rfp 1 objectives
RFP-1 Objectives
  • Standardised information model for TM data definitions
  • Allow exchange of TM/TC Definitions:
    • between Mission Phases
    • between Organisations
    • between Systems
    • without need for re-implementation or re-validation
  • Broad Scope within Space Data Systems:
    • All Phases of Mission Lifecycle
    • All Segments of Mission Infrastructure (Spacecraft, Payload & Ground)
    • Limited to Definition and not Transfer of TM/TC data
  • As Inclusive as Possible:
    • Support Legacy Missions
    • Support Existing Standards
    • Extensible: Mission Specific and Future Standards

SpaceOps 2002

rfp 1 status
RFP-1 Status
  • 3 submissions received describing in XML the current structure of their Telemetry and Command databases:
    • European Space Agency (ESA)
    • Boeing
    • Lockheed Martin
  • Agreed way forward: merge forces and work towards a single, combined, XML-based, response
  • NASA/GSFC and JPL support single submission
  • Organisation-specific software to be used to convert from the generic format to its own specific one

SpaceOps 2002

approach to rfp 1 integration
Approach to RFP-1 Integration
  • The submission integration work was split as follows:
    • Boeing: Telemetry
    • Lockheed Martin: Command, Stream and Algorithm
    • ESA: Packaging
    • NASA (GSFC & JPL): Analysis and review
  • Coordination by e-mail, telecon and (some) meetings
  • Extremely challenging task
    • Different organisations’ backgrounds and culture
    • Different technologies used (e.g. ESA mainly CCSDS packet TM/TC, Boeing and Lockheed Martin mainly TDM TM/TC)

SpaceOps 2002

data description context

RF

Signal

Which is demodulated to produce …

Symbol

Stream

Which is Decrypted, Decoded, Frame

Synched, & Extracted to produce …

Packets or

Minor Frames

Which may be turned into Messages of various kinds …

Packets

  • Data Elements described as:
  • Message Descriptors
  • Containers (data structures)
  • Message Sets

Annotated

Packets

Minor Frames

Other

Data Description Context

SpaceOps 2002

packaging s chema
Packaging Schema

SpaceOps 2002

telemetry s chema
Telemetry Schema

SpaceOps 2002

command s chema
Command Schema

SpaceOps 2002

conclusions
Conclusions
  • Standardisation of TM and TC definition is possible
    • for a broad range of common spacecraft operating modes and communication link designs
    • for a variety of different signaling and data structuring modes (i.e. packetised and TDM data)
    • for a variety of different commanding approaches
  • XML seems to be the right technology
    • Organisations might develop tools to convert TM and TC definition from the XML common format to their own proprietary format
  • The eventual publication of this standard will provide a common approach for the exchange of this data
    • significant reduction of cost and riskindevelopment and validation expected

SpaceOps 2002