[Rock-dev] Using "fuse" devices in Syskit

[Matthias Goldhoorn]

Hi Dev's (primary Sylvain i assume),
In the past i had with Sylvain already a discussion about "Electronic 
Fuses" -> devices wich control the power-state of child's.

These Electronic fuses become now more popular at DFKI. Afaik there is 
no way of modeling them in Syskit.
Each Slave-Device if a port of a efuse depends on the efuse and a spefic 
configuration and state (e.g. port-X-active) of the E-Fuse.

Since syskit as already powerful ways to react to error (like 
Monitors/Fault Repose tables) it would be really great and we need it 
also do represent and handle e-fuses in syskit.

The Problems here:
1) E-Fuse need to be configured in way that Port for Child X is active 
(could maybe handled als dynamic services?)
2) Child X needs to ne configured AFTER 1)
3) On error-State (or output) on a port of the E-fuse Child X is not 
working anymore (E-Fuse shuts down due to over current for e.G).
4) on 3) The Syskit fault-response table should handle the error by e.G. 
restarting the port and the device ( 1) and 2) ), if it's failing again 
leaving it deactivated and switch to another modality (e.g. using only 
xsens instead of FOG, or using reduced amount of actuators depending on 
the error source).

Afaik the Problem in Syskit is 3) am i right with that?
I what ways this problem/extension could be done.

Best,
Matthias

-- 
  Dipl.-Inf. Matthias Goldhoorn
  Space and Underwater Robotic

  Universität Bremen
  FB 3 - Mathematik und Informatik
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