Go to Post Success is realizing that anything is possible, persistence is the key. - SlamminSammy [more]
Home
Go Back   Chief Delphi > Technical > Programming
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #12   Spotlight this post!  
Unread 03-04-2007, 15:38
Tom Line's Avatar
Tom Line Tom Line is offline
Raptors can't turn doorknobs.
FRC #1718 (The Fighting Pi)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 1999
Location: Armada, Michigan
Posts: 2,534
Tom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond repute
Re: Simple dead-reckoning autonomous

I have to wonder. How many teams complaining that their camera was having trouble finding the light were trying to:

1. Find the light from the starting position.
2. Find the light while moving.

We noticed early on that tracking the light while the robot was moving at a decent speed, or even finding the light from the starting position was generally problematic.

We solved it by driving up to about 6 feet away then stopping and getting a single fix from the camera. We forced the camera to only search across 1 tilt level and had it on a vastly increase pan-speed.

That single fix gave us both the amount we needed to turn, and the distance we had to travel to score.

Early on, we actually did it in two steps - we turned first then got our second fix to get the distance. It was slightly more accurate (1-2 inches) than geting the distance then turning - but we need to speed it up to avoid the defense in West Michigan.
 


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Autonomous: CMUCam or dead reckoning? Andrew Blair Rules/Strategy 18 26-02-2005 19:36
dead reckoning st28 Programming 1 24-02-2004 11:34
Dead Reckoning Ryan Cumings Programming 3 24-02-2004 10:57
A DEAD reckoning program rcubes85 Programming 5 19-03-2003 14:21
Probably already covered, but curious, Dead-reckoning or no? Dave Technical Discussion 3 11-01-2003 01:14


All times are GMT -5. The time now is 19:34.

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