SPACECRAFT ONBOARD
INTERFACES SERVICES
(SOIS) AREA
Chris Taylor (AD)
Stuart Fowell (DAD)
Apr12-cesg-1
SOIS Area Report - Current Working Groups
1. Application Support Services WG
2. Wireless WG
3. Subnetwork Services WG (current work
completed)
The SOIS area covers onboard communication services with the intention of
standardising H/W and S/W interfaces between avionics elements & devices
A considerable part of our work is outside of the CCSDS where we perform a
harmonising role for avionics related development
Apr12-cesg-2
SOIS Area Report: Meeting Statistics
Wireless
App Supt Svcs
ASI
CNES
CNSA
1
CSA
DLR
ESA
INPE
JAXA
To be updated
NASA
2
2
5
10
RFSA
UKSA
2
Other
TOTAL
8
14
Meeting Duration
4
4.5
Agency Diversity
3
3
Apr12-cesg-3
SOIS Area Report
Application Support Services Working Group
Goal:
•
Develop SOIS Application support layer services and if appropriate protocols
Working Group Status
•
•
Green Book Issue 2 (almost) ready for sending to Secretariat for CESG Poll to publish
•
•
Device Data Pooling & Message Transfer Services Magenta Books CESG Poll RIDs dispositioned
•
Device Virtualisation & Device Enumeration Services Red Books (almost) ready for sending to
Secretariat for 1st Agency Review
•
•
Agreed plan for Electronic Data Sheet for Onboard Devices Blue Book & associated XML Schema
File & Packet Store Services Magenta Book CESG Poll RIDs dispositions agreed & updated book with
Secretariat for publishing
Device Access Service Red Book (almost) ready for sending to Secretariat for conversion to Magenta
Book at CESG Poll to publish
Agreed plan for Common Dictionary of Terms for Onboard Devices Blue Book & associated XML
Schema
Status:
OK
Comment:
Finalizing number of
books
CAUTION
PROBLEM
Apr12-cesg-4
SOIS Area Report
Application Support Services WG (cont.)
Primary Objectives for the fall meeting:
• Completion of SOIS Green Book Issue 2
• Finalising MTS, DAS, DDPS Magenta Books
• Complete DVS & DES Red Books
• Refine requirements & define plan for EDS and Common DoT books and XML
Progress
•
Excellent support in Darmstadt with good distribution of effort amongst partipants
•
SOIS Green Book Issue 2 consolidated, covering:
• Revised overview of Subnetwork, TAS, DAS, DDPS, DVS, MTS, FPSS, DES services
following development of books
• Added overview of Device Virtualisation and Electronic Data Sheets for Onboard
Devices, defining scope of work
• To be sent to secretariat for CESG Poll to publish by end of April
•
DDPS and MTS Magenta Book CESG Poll RIDs dispositioned. Results in only editorial
updates (to be done by end of April)
•
DES and DVS updated in line with FPSS/DDPS/MTS RIDs and alignment with agreed
Device Virtualisation and Electronic Data Sheets for Onboard Devices
Apr12-cesg-5
SOIS Area Report
Application Support Services WG (cont.)
Progress (cont.)
•
Clarified books to be produced for Electronic Data Sheets and plan agreed:
• Electronic Data Sheets for Onboard Devices Blue book
• Electronically describes:
• Device-specific Access Protocol, how to access a device using subnetwork services
• Functional Interface, how to access the functions provided by the device, virtualised from
the access method. For example, using engineering units rather than raw values
• Device Abstraction Control Procedure, mapping on the Functional Interface on to the
Device-specific Access Protocol
• Ancillary Information, text, figures etc.
• Book describes structure and required elements within an Electronic Data Sheet
• Electronic Data Sheets XML Schema
• XML Schema to use for creating a device’s EDS in XML
• Pulls in Common DoT XML Schema
• Held by SANA
• Common Dictionary of Terms for Onboard Devices Blue book
• Common syntactic and semantic types used in device EDS
• Common Dictionary of Terms XML Schema
• XML Schema to use for creating Common DoT in XML
• Held by SANA
Apr12-cesg-6
1
1
Common Dictionary of Terms
for Onboard Devices
Electronic Data Sheet for
Onboard Devices
Blue Book
Blue Book
Transformation
1
1
EDS XML Schema
Common DoT XML Schema
3
2
Generic Functional Interface
per device type (future)
*
Priority
*
Standard CCSDS book
*
Equivalent in machine readable format
Transformation
Generic EDS for a device type
Generic EDS for a device type
EDS XML Instances for
individual devices
Apr12-cesg-7
SOIS Area Report
Application Support Services WG (cont.)
Progress (cont.)
•
Work Plan:
• 1st complete draft of Books and XML Schemas Fall 2012 meeting
• Prototyping example device EDS with device-specific functional interfaces
• Refine Books and XML Schemas Spring 2013 meeting
• Possible prototype device EDS with generic functional interfaces
• 1st Agency Review of Books and XML Schemas Fall 2013 meeting
• CESG Poll for publication of Books and XML Schemas Spring 2014 meeting
• Publish Books and XML Schema Summer 2014
•
Resources:
• 6 man months per year, inc. meeting attendance – all identified (ESA, NASA, AFRL, UKSA)
• Supported by:
• ESA Project prototyping XML schema and example device EDS
• AFRL prototyping Common DoT XML schema and example device EDS
• NASA-GSFC provision of GPS Receiver xTEDS & review support
Future work:
•
•
•
Release remaining Green and Magenta Books
Progress work plan on Electronic Data Sheets & Common DoT
Continue fortnightly telecons
Apr12-cesg-8
SOIS Area Report
Wireless WG
Goal: Develop wireless recommendations for onboard space applications
Working Group Summary Progress:
•
•
•
RFID-Based Inventory Management Systems Magenta Book in publication
Low data-rate wireless communications for spacecraft monitoring and control Magenta
book (LDR MB) under completion
The SSIART (join test-bed) activity is moving forward and an administrative agreement
between ESA and NASA is currently under way (Export & IPC…).
To be updated
status:
comment:
•
OK
CAUTION
PROBLEM
Very Good
Primary Objectives for the fall meeting
• Digest lessons learned from the Asset Management (AM) recommendation
• Finalize Low Data Rate (LDR) Magenta Book
• Refine technical architecture and the cooperation and administrative framework of the shared test
•
•
bench for smart sensors (SSIART)
Review and update the next-years roadmap
Review the status of the joint Wireless for space symposium 2012
Apr12-cesg-9
SOIS Area Report
Wireless WG
Progress
•
Emerging needs for high data-rate wireless communications identified. Will be
further investigated with consolidate the use-cases
•
Identified the need for additional guidance for the testing and coexistence activities
associated with the introduction of wireless communications
•
Technical programme of the joint symposium on wireless technologies proposed to
be held in North America in September 2012
To be updated
Future Work
•
•
•
•
•
Publish Low Data Rate (LDR) Magenta Book
Consolidate proposal for work plan on high rate wireless transmission
Conclude on the need for additional guidance to users on the application of wireless
technology and propose work plan accordingly
Continue with the definition and usage of the SSIART
Continue fortnightly telecons
Apr12-cesg-10
SOIS Area Report
Cross Area Meetings: SOIS APP and MOIMS SM&C
• SOIS presentation on use of Electronic Data Sheets in spacecraft development
process
- Definition of interface to devices, not device functionality
• Exploration as to where data from Electronic Data Sheets are used, e.g. spacecraft
database, device simulators, TM/TC databases
• Exploration as to what structures XTCE & MO Services MAL have that are of
benefit for use in Electronic Data Sheets
• Agreed to meet again in Fall 2012 meeting to update on progress of Electronic
Data Sheets and XTCE
Apr12-cesg-11
SOIS Area Report: Summary
ASWG
• Device Virtualisation, EDS and PnP Architectures updated and consolidated to cover
NASA, AIAA and ESA avionics
• FPSS, MTS, DAS ready for publication
• Green Book Issue 2 and DES approaching ready for publication
• DVS approaching ready for agency review
• File and Packet Store CESG poll to publish delayed at late stage due to CESG
comments
Wireless WG
To be updated
• RFID Magenta submitted under publication
• Low rate wireless sensor network approaching completion,
• export and ITAR clearance requested for test-bed cooperation
General Concern: Future ESA effort under review and needs to be confirmed
Apr12-cesg-12