Add alarm via doberman device output

AG-Schumann / Doberman

Distributed supervisory control, data acquisition, and monitoring software for small- to medium-size experiments

MIT License

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Add alarm via doberman device output #216

Closed adambrown1 closed 4 months ago

adambrown1 commented 1 year ago

We would like a flashing light in the lab when there is a doberman alarm, for which we could use a revpi digital output. Therefore it would be good to have an alarm function that sends via a doberman device.

adambrown1 commented 11 months ago

I guess queued commands are no longer available. One option is to have a pipeline control the output, which is activated or configured when an alarm is triggered (as a new alarm protocol). This could then turn off the output after some time.

Or somehow to check whether there is a silenced pipeline since this indicates an alarm is active? Or to turn off the active alarm output when a pipeline is reactivated?

jarongrigat commented 11 months ago

Okay, I thought about it and I think my favourite solution is the following:

Add a field alarm_is_triggered: True/False to each sensor's DB entry.
Make AlarmNodes set this field accordingly. This can be done regardless of the pipeline being silent or active.
Create a new Node that checks whether there are triggered alarms or not. Maybe this can have the option of either looking at a list of sensors or looking for any alarms or something like this.

What do you think?

adambrown1 commented 11 months ago

That sounds good to me. I also like the idea we could have an output that is only affected by alarms on a subset of sensors