Data aggregation in Hierarchies

A Hierarchy aggregates the measurements from the device nodes all the way up through the different hierarchy levels. For example, a hierarchy with the levels Building > Floor > Areas, where the monitoring devices are associated with the Areas, will show the aggregation of all the area measurements for a floor at the Floor level and the aggregation of all floor measurements at the Building level.

Example: Measurements aggregating up the hierarchy

Hierarchy Level 1	Hierarchy Level 2	Hierarchy Level 3	Hierarchy Level 4
Building [22kWh] (aggregated)
	Floor 1 [10kWh] (aggregated)
		Area 1 [7kWh] (aggregated)
			Device - 5kWh (measured)
			Device - 2kWh (measured)
		Area 2 [3kWh] (aggregated)
			Device - 3kWh (measured)
	Floor 2 [12kWh] (aggregated)
		Area 3 [12kWh] (aggregated)
			Device - 12kWh (measured)

The starting point for the aggregation in the Hierarchy is a device node. The Hierarchy will not include measurements from nodes below the device node in the aggregation.

Example: Device nodes are the beginning of the aggregation.

Hierarchy Level 1	Hierarchy Level 2	Hierarchy Level 3	Hierarchy Level 4
Building [14kWh] (aggregated)
	Floor 1 [2kWh] (aggregated)
		Device - 2kWh (measured)
		Area 1 [7kWh] (aggregated)
			Device - 5kWh (measured)
			Device - 2kWh (measured)
		Area 2 [3kWh] (aggregated)
			Device - 3kWh (measured)
	Floor 2 [12kWh] (aggregated)
		Area 3 [12kWh] (aggregated)
			Device - 12kWh (measured)

By associating a device with the Floor 1 node, this node becomes the starting point for the aggregation. The measurements of the child nodes Area 1 and Area 2 are ignored. Only the device measurement associated with Floor 1 is included in the aggregation.

NOTE: Not all Hierarchy nodes can have devices associated with them. If devices can be associated with a certain node level in a hierarchy or not, is defined in the template for this hierarchy.