[Dsg-halla_gas] Login instructions and remote monitoring

[Marc Mcmullen]

Hi,

DSG has installed the GEM Gas Flow Readout single board computer (Raspberry Pi). The software installed is prototype and will be updated in 2021.

Here are some important notes on monitoring:


  1.  It is best practice to remotely login using the instructions attached to this email to monitor the gas flow, even if you are local (at the lab). If you are at the gas distribution rack, please observe the flow by looking at the Flow Meter Panel in the rack.
     *   logging in and running the display on the local Raspberry Pi monitor will prevent viewing the display remotely
     *   If the display is left on locally, the CSS program will have to be "killed" or the Raspberry pi will have to be rebooted (~ 2 minutes) and all software must be restarted (~ 2 minutes) per the instructions (on the desktop of the Raspberry Pi and in this email)
  2.  To remote monitor follow the instructions attached to this email. DSG has already started the monitoring program, if it is not running:
     *   restart the software by following the attached instructions (also on the desktop of the Raspberry pi)
     *   send an email to the group and someone will restart the software
  3.  Only one person can remotely log into the Raspberry Pi at a time, logging in will disconnect someone who is already logged in, so please coordinate with each other via email and disconnect by closing the Remote Desktop window when you are finished monitoring

In future updates, DSG plans to make a web distribution for the prototype software, allowing multiple users to monitor the CSS screen.
Finally, EPICS will be used to monitor gas flow during hall operations.

Regards,
Marc


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