Patent ID: 11957087
Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
Field: Computer technology (Electrical engineering)
Classification: CPC A  G  H  Y | IPC A  G  H

Claim 3:
4. The Internet of Things (IoT) based hydroponic farm system of claim 3, wherein each zone controller includes:
a proportional integral derivative (PID) controller connected to each of the first plurality of sensors and the first plurality of actuators, wherein the (PID) controller is configured to generate hydroponic plant growing zone data based on the sensor signals, and to control the plurality of actuators based on the sensor signals;
a wireless communications unit connected to the (PID) controller, wherein the wireless communication unit is configured to publish the hydroponic plant growing zone data to the farm controller through the data distribution service middleware; and
wherein each zone controller is further configured to generate at least one of an irrigation schedule and a nutrient flow schedule for the each hydroponic farm growing zone, and publish the at least one of the irrigation schedule and the nutrient flow schedule to the farm controller and the plurality of the user computing stations through the data distribution service middleware.