[Rock-dev] Periodic task mandatory for needs_reliable_connection?

[Christian Rauch]

Hi,

is there another way to guarantee a reliable connection without periodic 
samples (e.g. indexed samples)?

Our camera (IDS) provides frames as they become available which are then 
processed by the object detection component on a 
'needs_reliable_connection' port. The only workaround I see so far is to 
call the camera task periodically which results in unneeded calls of the 
updateHook.

What is the common practice on this? Should sensors deliver data 
periodically even if there is no new data or should processing 
components not rely on every single data sample package but only on the 
last one? Even if the task is periodic, a sample might be lost.

Regards,
Christian


-- 
  Christian Rauch
  Space Robotics

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
  Robert-Hooke-Straße 1
  28359 Bremen, Germany

  Zentrale: +49 421 178 45-6611

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  28359 Bremen, Germany

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  E-Mail:  Christian.Rauch at dfki.de

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