[INSTRM-1567] Add estimates of cobra centres for illuminated but non moving cobras Created: 01/Apr/22  Updated: 08/Jun/22  Resolved: 08/Jun/22

Status: Done
Project: Instrument control development
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: karr Assignee: karr
Resolution: Done Votes: 0
Labels: EngRun
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Relates
relates to INSTRM-1616 Returning 2394 locations from FibreID... Done
Sprint: PreEngRun06June

 Description   

For fibre identification we need an estimate of the geometry of the broken cobras, particularly the ones that are illuminated but not moving. As they are not moving, the usual calibration method doesn't work, however, the value doesn't need to be as accurate, and an estimate based on the position of surrounding cobras should be sufficient. 



 Comments   
Comment by karr [ 21/Apr/22 ]

At the moment I've got a workable, but kludgy solution. Using home position data I did a search for unmatched points for the loaded geometry, and saved the values as a list of points for illuminated but non moving cobras, which can be removed from the list of potential point matches in the same way the fiducial fibres are. 

Comment by karr [ 21/Apr/22 ]

A more stable/maintainable solution should be discussed. 

Comment by karr [ 05/May/22 ]

currently values are stored in ics_mcsActor/etc as stuck.txt. 

Comment by karr [ 26/May/22 ]

The recently unstuck cobras from the May21 commissioning will lead to a new calibration file, which will remove most of this problem. 

 

Comment by karr [ 08/Jun/22 ]

With the  results of testing of INSTRM-1616, I think this can be closed. 

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