Go to Post I would much rather educate the audience than dumb-down the game. - dlavery [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
  #15   Spotlight this post!  
Unread 20-02-2014, 18:32
Pault's Avatar
Pault Pault is offline
Registered User
FRC #0246 (Overclocked)
Team Role: College Student
 
Join Date: Jan 2013
Rookie Year: 2012
Location: Boston
Posts: 618
Pault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond reputePault has a reputation beyond repute
Re: Automatic catcher?

Quote:
Originally Posted by faust1706 View Post
Tracking a ball is a feat on its own than not many teams get around to doing, yet alone calculating its trajectory and autonomously moving to where it is going to land. It involves some serious geometry if your camera is not perpendicular to the ground. You also have to account for the delay. Can you write an efficient enough program that will give an accurate solution in time? It is a very complex problem, but a lot of fun to solve.

I would simply go off driver reflex, and I'm the vision programmer on the team.
It's probably still a waste of time, but I can think of an easier way to do this. It requires a omnidirectional drivetrain. Basically you use PID. For left to right, it is simply using PID to try and center the ball on your camera's x-axis. Forwards and backwards is a bit more difficult. I would probably use some sort of function which combines the current size and height of the ball, and feed that into PID. It seems like with some tuning you could get it to work.
Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 23:16.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi