|
|
发表于 2006-12-1 16:08:29
|
显示全部楼层
There are two kinds of control system : Open Control System and Close Control System.
Open Control System is like this :
Input---->Controller----> rocessor---->Output
Close Control System(Feedback Control System) is :
Input---->Controller----> rocessor---->Output
|----------Feedback-------------|
The most difference between these two systems is that the output can influnce the input in Feedback Control System. In other word , Close Control System can reduce errors by itself !
Here is an example... |
|