What function do sensors perform in a Cyber Physical System?

• A. Trigger actions based on outputs
• B. Make decisions based on data
• C. Sense or monitor changes to the physical world
• D. Send commands to actuators

Answer: (C)

In a Cyber Physical System (CPS), sensors play a crucial role in understanding and interacting with the physical environment. Specifically, they are designed to sense or monitor changes in the physical world, gathering data from various sources. This data can include environmental conditions, physical movements, and other variables essential for the system’s operation.

The capability to sense these changes is what enables a CPS to function effectively, as it relies on real-time information to make informed decisions, trigger responses, or adjust processes. Sensors convert physical phenomena into signals that can be processed and analyzed, forming the foundation on which the system operates, including the feedback loop that enables the system to respond appropriately to dynamic situations in the physical world.

Through this sensory information, a Cyber Physical System can react to variations in its surroundings, making it foundational to the overall architecture and functionality of the system.