Go to Post I hate mini-bots. - Gdeaver [more]
Home
Go Back   Chief Delphi > Technical > Electrical
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 26-03-2003, 13:34
seanwitte seanwitte is offline
Registered User
None #0116
Team Role: Engineer
 
Join Date: Nov 2002
Location: Herndon, VA
Posts: 378
seanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant futureseanwitte has a brilliant future
Send a message via AIM to seanwitte
gyro circuit

Thanks for the information.

For one or two turns you can add up the magnitude and get repeatable results, but when we tried to do it over 15 seconds there was too much drift. One of the programs is set up to drive laterally across the field looking for bins using an IR ranger. When it sees one it turns 90 degrees, drives forward to push it out of the scoring zone, then reverses, turns 90 degress to rejoin the search path. The robot could only make maybe 2 transitions before it drifted so much it was useless.

We had a couple of different programs that used the bearing so it cut down on maintenance by providing the value directly to the robot. It provided some flexibility when they put the robot on the field because they didn't have to get the angle perfect, just put it down square, reset the bearing, and rotate it in place. It will still steer to the correct angle no matter which direction its pointed.

I think it worked well, and they can add the bearing to any program by just plugging in the board. Theres a video on www.soap108.com of match 91 at Chesapeake that shows the robot slip on the ramp, sense that its off course, correct itself, and hit the stack. We were slow but reliable, like everyone we just needed a little more time.
Closed Thread


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
Calling all PHP/ASP programmers! blueWarrior FIRST-related Organizations 15 27-01-2004 13:24
TCP/IP on a PIC Venkatesh Electrical 1 18-11-2003 21:00
Learning PIC C Adam Collet Programming 18 19-10-2003 19:36
pic: Another pic of Team 930 CD47-Bot Robot Showcase 7 25-02-2003 21:07


All times are GMT -5. The time now is 10:52.

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