Hi Matias:
Thanks for the question!
Sensors, alarms, etc in Brick are Points, so they model the BMS I/O entity, not the physical sensor. We are looking into modeling these kinds of “sensor platforms”, which would be able to host multiple points. I believe there’s a partial PR for creating such “sensor platform” or “sensor equipment” but the details haven’t been worked out yet. I’ve been busier than I expected teaching this semester so I should get to this in December; it should be fairly similar to the concepts already in SSN/SOSA. I’m thinking to create it as a subclass of “IT EQuipemnt” and that should be enough – it can always be specialized further for specific sensor platforms.
We don’t have a good answer on grouping points/alarms/etc yet. There is an emerging ontology based on the ASHRAE 231 standard which can express control logic, but this is probably more than we want. You can look at https://github.com/BrickSchema/Brick/issues/393 and https://github.com/BrickSchema/Brick/issues/573 for some of the ongoing conversatiosn around alarms. We would love another perspective!
Another related discussion is how to standardize enumerations for things like commands, states, and alarm enums. This conversation (https://github.com/BrickSchema/Brick/issues/566) captures some of what we’re thinking. Look out for some emerging developments on the Brick mailing list!
I also want to pitch the working groups (https://brickschema.org/blog/working-groups/) which you can always attend if you’d like to speak with me directly! They are at different times/days so hopefully its possible to find one that works for you regardless of timezone
Best,
Gabe
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