Meters are equipment, but they host the points like the
power/energy sensor that point to the actual data. We are in the
process of trying to clean up the specific relationship between
meters and equipment so that it is clear that the power/energy
from the equipment is being monitored/metered/measured by the
meter equipment. In the past, I have used "feeds" to relate an
equipment (e.g. chiller) to the meter to indicate that the
chiller's energy or water consumption is being measured by that
meter, but it is becoming clear that we need a more
straightforward way of accomplishing that. We also need to have a
more consistent way of modeling submeter hierarchies. This will be
discussed in the Ontology working groups
We also have a gap when it comes to describing the physical
location of sensors. When a Point "isPointOf" a Location, it is
similar to saying where the data is observed/measured. However,
this doesn't say anything about where the sensor device is
Device A brick:Gas_MeterSensor A brick:Gas_SensorDevice brick:hasPoint Sensor
Is that correct?
Yes, that is the correct approach.
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Coming back to the original question. As I understand it the multisensor is a kind of equipment that has various points. If the multisensor is in Room12 how does one best capture that? Should the points be "pointOf" both the multisensor and the room? Correspondingly, is there a generic SPARQL graph pattern to find the temperature in a specific room?