Experimental Physics and
Industrial Control System

"Erik Johansson" <[email protected]> · Tue, 9 Dec 2008 08:48:22 -1000

Hi Terry,

We use a Sun X4100 with a Triton RAID system to store wavefront sensor
images at up to 100 Hz. The frames are stored along with timestamps in a
postgres database. We can retrieve them after the fact with some tools
to extract postgres data into IDL and then display them as images. The
timestamp is the primary key in the table and is critical for later
recall, comparison, and troubleshooting. I am sure you could design
something fairly simple with a frame grabber and a RAID server to store
your video data for later recall. There probably are turnkey commercial
systems available for this purpose as well. We are not using EPICS for
this application.

Hope this helps,

Erik 

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Terry Carlino
> Sent: Tuesday, December 09, 2008 8:36 AM
> To: [email protected]
> Subject: Video solutions
> 
> We use synchrotron light video to monitor beam energy and 
> cross section. 
> We are looking for a solution that would permit us to 
> continually and simultaneously capture video from these video 
> sources and save it in a
> 48-72 hr buffer. The goal is to make diagnostic information 
> available for review so that when we have a problem the beam 
> spot can be compared to previous spots, beam motion periods 
> can be saved for posting to the log, etc.
> I was wondering if anybody was doing anything similar and 
> what hardware and application tools, EPICS or not, that you 
> might be using.
> 
> Terry Carlino
> TJNAF
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System