Thread: Dealing with low resolution data for speed PID
View Single Post
  #9   Spotlight this post!  
Unread 29-12-2012, 19:58
Mr. Lim Mr. Lim is offline
Registered User
AKA: Mr. Lim
no team
Team Role: Leadership
  
Join Date: Jan 2004
Rookie Year: 1998
Location: Toronto, Ontario
Posts: 1,125
Mr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond repute
Re: Dealing with low resolution data for speed PID
Gear the encoder so that it turns more per revolution of your drive wheels. You'll get more counts per 50Hz loop, which will give you more resolution to work with.

Yes, you can try and overcome the lack or resolution to a point with software filters, but there comes a point where you can only do so much. There's a great adage when it comes to sensor data: garbage in, garbage out.

How much resolution are you trying to achieve here?

Are you using two wire encoders, or one wire? PIC or Cortex?
__________________
In life, what you give, you keep. What you fail to give, you lose forever...