View Single Post
  #12   Spotlight this post!  
Unread 17-02-2012, 12:11
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,089
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Using PID controls to center robot on target with camera

Quote:
Originally Posted by guoruiwu1994 View Post
The input of the PID wants a source though, not a number.
Give it a source that always returns zero for the setpoint.

Give it a source that returns "how many pixels we are off target" for the processVariable.


Reply With Quote