PSY/CS330 Human Factors
04/30/2001
Day 1-
33
A Model of Control Systems Theory
Reference Input
:
Thermostat =
72
o
Comparator
:
72-73 = 1
Action System:
Furnace is turned off
Output
:
No hot air
Input
:
Air temperature
73
o
Sensor
:
Thermometer at wall
Disturbance
:
e.g. open window
