The use of global variables in Thermostat Controller sensor weight field will make it possible for rules to affect the thermostat temperature calculations by updating the global variables.
- If a room motion detector indicates the room is empty, set the sensor weight to 0
- If a person's location is away from their room, set the sensor weight to 0
- Based on time of day or controller modes, adjust sensor weights depending on expected occupancy of rooms
- Some other conditions that require room weights to be increased or decreased
While it is currently possible to use rules to update which sensors are used in a therm controller, it is far too complex to create rules for all situations:
Current situation involving one controller with sensors for two rooms:
- rule/condition 1: if room1 occupied + room2 occupied, update controller settings
- rule/condition 2: if room1 empty + room2 occupied, update controller settings
- rule/condition 3: if room1 occupied + room2 empty, update controller settings
- rule/condition 1: if room1 empty + room2 empty, update controller settings
n number of rooms = (n x n) number of rules/conditions
Proposed situation:
- rule/condition 1: if room1 empty set weight to 0 else set weight to 1
- rule/condition 2: if room2 empty set weight to 0 else set weight to 1
n number of rooms = n number of rules/conditions
