Air Conditioner (UML State Machine Diagram)

An example of a UML state machine diagram that describes states of an air conditioner and the transitions between them.

State Machine Diagram for Air Conditioner

The state machine diagram describes the states of air conditioner operation.

Air Conditioner (UML State Machine Diagram)
Air Conditioner (UML State Machine Diagram)

The diagram describes these states:

  • Off - activated by turning AC off, the first state
  • On - activated by turning AC on
    • [Mode]
    • Cooling - activated when room temperature is higher than target temperature
    • Heating - activated when room temperature is lower than target temperature
    • [Fan Speed]
    • Off - fan speed button pressed
    • Low - fan speed button pressed
    • High - fan speed button pressed
  • Stand By - is activated by pressing Stand By button

UML State Machine Diagram Concepts

The example diagram shows usage of the initial state, simple states, the state with regions, the fork for parallel states, the decision for various conditions, and transitions.

Download Air Conditioner State Machine Diagram

Air Conditioner (UML State Machine Diagram)

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