I’m monitoring the temperature measured in my small greenhouse and I am comparing it with the current temperature as obtained by the the weather binding. I am using the rrd4j persistence. I noticed that the Current temperature given by the weather binding is delayed by at least a couple of hours: i.e. I would need to shift the binding temperature to the left of the chart by a couple of hours.
This means that the value recorded say at 12.00 is actually referring to 10.00: therefore I would need to modify the value taken two hours before.
Would this rule work ?
rule "correct delay"
Item Temperature changed
Temperature and Temperature_adjusted are two number items, which are also persisted with rrdj4