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Unread 17-02-2014, 15:31
NotInControl NotInControl is offline
Controls Engineer
AKA: Kevin
FRC #2168 (Aluminum Falcons)
Team Role: Engineer
 
Join Date: Oct 2011
Rookie Year: 2004
Location: Groton, CT
Posts: 261
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Re: What sensors are used to detect the hot LED lights on the FRC field?

Quote:
Originally Posted by Lightfoot26 View Post
You hit the nail on the head Alan!

The sensor I posted actually has a built in sensing light that illuminates when "the circuit is complete" for lack of a better term. This is all internal to the sensor. If the target is present both a green and amber light located on the top of the sensor will illuminate, if there is power to the sensor, but the target is not present, only the green light illuminates.
I agree with the "not use vision if you don't have too." In 2012, we were a team that had no vision on our robot. Our drivers used a line marker at the tail of robot to line up with the center of the key to make key shots. IT was actually a point of pride after a while to have the performance we did without vision. We ranked 1st seed in both regionals we attended that year, so it worked out well for us.

This year, we have vision running on a beaglebone using opencv and ffmpeg. It was a system we received from our friends 118, and have been modifying for our specific use.

I was curious about placement of the robot, because your initial post metioned it was an IR sensor. I didn't see wavelength specified on the link you provided, but I do honestly hope this system works out for you.

It will be pretty cool to see such a simple system reliably work in auton. My fear would be the initial lineup, and shooting prematurely because I was looking at the horizontal target instead of the vertical, but it sounds like you have a plan to overcome that.

Goodluck.

Reagrds,
Kevin
__________________
Controls Engineer, Team 2168 - The Aluminum Falcons
[2016 Season] - World Championship Controls Award, District Controls Award, 3rd BlueBanner
-World Championship- #45 seed in Quals, World Championship Innovation in Controls Award - Curie
-NE Championship- #26 seed in Quals, winner(195,125,2168)
[2015 Season] - NE Championship Controls Award, 2nd Blue Banner
-NE Championship- #26 seed in Quals, NE Championship Innovation in Controls Award
-MA District Event- #17 seed in Quals, Winner(2168,3718,3146)
[2014 Season] - NE Championship Controls Award & Semi-finalists, District Controls Award, Creativity Award, & Finalists
-NE Championship- #36 seed in Quals, SemiFinalist(228,2168,3525), NE Championship Innovation in Controls Award
-RI District Event- #7 seed in Quals, Finalist(1519,2168,5163), Innovation in Controls Award
-Groton District Event- #9 seed in Quals, QuarterFinalist(2168, 125, 5112), Creativity Award
[2013 Season] - WPI Regional Winner - 1st Blue Banner