Page History

Wednesday 2021-02-24

• AUTOSAR - Tieto/EVRY still interested but other priorities came up so the time plan not clear at this point.
• Signal2Service - check if spec released and if applicable
• Look at defining the representation of data in AUTOSAR-XML (to prepare VSS to ARXML conversion)
  • FARACON tool would be one approach.  Create a Franca IDL file with some observable data ("Attributes" in FIDL) and run the conversion, study the result.  There is a comprehensive mapping between Franca ↔ ARXML that should be correct.
• MQTT 
  • VISS over MQTT (Ulf) has been described in W3C Automotive working group.
    • It is embedding VISS in MQTT with a small control protocol defined (over MQTT).
    • Access control strategy is identical to standard VISS. 
      • Topic needs to be "protected" somehow or anyone could listen/inject to traffic.
    • Give some time to let this idea mature before it becomes part of any official specifications.  New ideas and improvements may come up.
  • A more direct VSS-to-MQTT topic mapping is a different and complementary alternative
  • Sebastian:  Publishing to MQTT is easy.  For writing more work required (because access control details not done yet).
    • Steps:  Define the payload message format
    • Steps:  Describe the access control strategy (clients have access to a subset of topics)
    • Steps:  Deciding implementation language and reuse libraries
• Protobuf – think about how to represent messages - this page

Wednesday 2021-02-17

Workshop preparation

Shortlist of working items:

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