Control Systems Flashcards
Definition of a control system
A system that has an input, a process and an output
3 examples of input
People Tools and machines Materials Energy Time Capital Information
Definition of control system process
All activities that need to take place to give a desired result
4 types of output
Expected
Unexpected
Desired
Undesired
Which type of control system has feedback
Closed loop control system
Definition of feedback (3)
Reactions to input, process and output
Data gathered is fed back to computer/control device
Automatic adjustments made
4 control systems
Command systems
Programmable systems
Sensing systems
Conditional systems
Definition of command system (2)
Simplest type
User issues command which affects an aspect of the system
2 examples of command systems
TV remote
Toy helicopter
Definition of programmable system (3)
Different parameters are input to make it perform
Common in domestic environment
Little need for input once starting
2 examples of programmable system
Microwave
Washing machine
Definition of sensing system
Use of electronic device to sense change on environment
2 examples of sensing systems
Car barrier
Train ticket barrier
Definition of conditional system (2)
Does things differently depending on parameters
How the parameter is set depends on system
Example of conditional system
Hive heating system
