2) The control end node platform
We designed the controller nodes to activate or deactivate
the pump oxygen system in accordance with the management
system. It can be seen from Figure 4 where the data
acquisition module in the sensor node is replaced by a driver
module. This driver works according to the control commands
from the management module. The commands can be sent
timing, or after the data on the levels of dissolved oxygen has
been analyzed, or as the user requests.