Chief Delphi - Wiring two cameras

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Re: Wiring two cameras

Quote:

Originally Posted by Karma

So in the Team Update 3, it said we could use another vision camera on our robot. Does that include any other types of cameras, such as USB? Some teams will be using Co-Processors, and thus have the capabilities to use more than two cameras, is this use even allowed?

The second vision camera you can now use is only a second CMU-Cam2, identical to the camera that came in the 2005 FRC Kit Of Parts. To answer your other question, as of now you can only use a maximum of two CMU-Cam2 units on your 2005 FRC competition robot.

Re: Wiring two cameras

Quote:

Originally Posted by dez250

Are you sure? I think they are allowing the second CMU-Cam2 because it meets all flowchart and other rule criteria. In short, they could not not allow it. I think that this would be true of any camera that is less than $200 and meets all other criteria...

As far as another post above, just what would you plug a USB camera into? Then you would have to write pattern recognition software... A lot to do in less than 4 weeks....

Re: Wiring two cameras

You people are so intent on making things more complicated. Just think about it. Regardless of what you do everything is going to come down to trig in the end, and you need a total of three angles and sides in order to compute the other three. If you use two cameras then you are getting two somewhat inexact angles, along with one short side (unless you mount them one on top of the other, then you just get one long side and two inexact angles). On the other hand if you use just one camera, and mount it on top of your robot not only do you have one relatively precise angle to supplement the remaining inexact angle, you also have one long side. So not only is it less complex, it is also more accurate. And doesnt require three batteries or sixty RCs, or two cameras :ahh: . The only downside is you dont get a weeks supply of krispy kreams.

Re: Wiring two cameras

Quote:

Originally Posted by russell

One camera will work great for giving you distance, but only when you're really close to the tetra. Trigonometry produces inexact values when angles are large (because the distance changes a large amount for a small change in the angle). It is much more exact when angles are small. The reason you'd want to use two cameras is that you then have two angles to use which increases your accurracy and decreases the error (if you implement it correctly).

Matt