Quote:
Originally Posted by yash101
Yeah. each XU's got some power! I actually think an XU is more powerful than my laptop, with an i3-2367m! I however only get ~2400BMIPS processing speed in Ubuntu
Not only will the wiring be hairy, the computers will draw just a ton of current, so batterywork will not be fun!
By the way, the D'Link only has 4 ethernet ports. Are you guys going to have an extra switch on the bot to give you more ports? I think you'll have 120lbs of computer, not of robot, aluminum and other important robot stuff!
Think wisely of what you will lose by having so many onboard computers!
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Considering each XU weighs about 150 grams tops, if we use 4 that is 600 grams or 1.32 lbs. The genius 120 weighs 82.0 grams. Times that by 3 and we are at 246 g. That puts out total weight of our vision system at 1.86 pounds not including wires weight. The Kinect weighs at least a pound. So we really aren't that much different that last year. 2 years ago on our custom build computer, our vision system weighed over 6 pounds. Weight will not be an issue.
I know the XU has power, but when I tested for the 3 genius 120 cameras, the fps dropped to 25 when all I was doing was grabbing the image and displaying it. Last year the slowest the vision algorithm ran during a match was 27 fps.
We are sending all of our data into a program that will be running on one of the boards that calculates our xy position and yaw given how far away we are from the targets that we see. If I only see one, I will do a pose calculation to get xy field location and yaw. Then, the xy coordinate and yaw gets sent to the cRIO. So, We only need to send data from 1 XU to the labview side of things. The XU has an IO connector, so we can have the boards communicate through that.