Controllers can then switch to the saving mode to allow the product temperature to rise during peri-
ods that outlets are closed and switch to the ready mode to ensure that the product is at the correct
serving temperature when outlets open, as shown below.
After the learning period ends, controllers continuously update the self-learning matrix, therefore:
l If the cooler is moved, the controller updates the self-learning matrix from the previous location with the activity
from the new location.
l If the outlet opening hours change, the controller updates the self-learning matrix with the activity for the new
opening hours.
l If the time changes due to day light savings time, the controller updates the self-learning matrix with the activ-
ity for the new opening hours.
If power is lost for less than 3 days, controllers start working at the correct location in the self-learn-
ing matrix. However, if power is lost for more than 3 days, controllers clear the self-learning matrix
when power is restored and starts from the learning period again.
6.1 How EMS controllers work - example
After the learning the activity patterns during the learning period, EMS controllers work as follows:
1. Prior to the outlet opening the EMS controller ensures that the products are at the correct serving tem-
perature before the first sale.
2. The EMS controller sets the cooler into the ready mode when the outlet is open.
3. The EMS controller detects activity using the motion detector and door switch.
4. The EMS controller continually updates the activity patterns
5. The EMS controller manages the cooler temperature and lights to optimize energy savings without any manual
intervention.
6. The EMS controller sets the cooler to the saving mode when the outlet closes.
6.2 Self-learning
EMS controllers start self-learning the moment the EMS controllers are first powered-up. EMS con-
trollers then run in the ready mode whist the EMS controllers learn the activity pattern of outlets.
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27 February 2014
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