7.1.7 - Compare a centrally controlled system with a distributed system.

Question 1

What are the advantages of a centrally controlled system?

Answer 1

A centrally controlled system is easier to maintain, troubleshoot, and control, as all components are managed by a single microprocessor.

Question 2

What are the disadvantages of a centrally controlled system?

Answer 2

If the main sensor, controller, or actuator fails, the entire system fails. It also has limited power and flexibility, with fewer tasks being handled simultaneously.

Question 3

What are the advantages of a distributed system?

Answer 3

A distributed system shares the processing load across multiple processors, increasing reliability, flexibility, and allowing more tasks to be completed simultaneously.

Question 4

What are the disadvantages of a distributed system?

Answer 4

A distributed system is harder to maintain due to multiple processors and components, and requires more complex software to manage all the processes.

Question 5

What are some general advantages of control systems over human control?

Answer 5

Control systems respond faster, run 24/7, are less prone to errors, and can operate in hazardous environments. However, they rely on electricity and may not react well to unexpected events.