The scenario
A greenhouse automates temperature regulation using a PID controller that drives heating/cooling actuators based on sensor feedback, maintaining optimal growing conditions.
What is in this drawing
Read the decisions behind it.
01
Separate controller, actuator, plant, and sensor blocks for clarity.
02
Sum junction with visual + and - signs for error computation.
03
Explicit sensor block feeding both the error sum and output signal.
Reusable for any closed-loop temperature or climate control system (e.g., HVAC, incubators) by relabeling blocks and signals.
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