Quote:
|
2nd Optics - Optical encoders on the wheels and optical mouse to senses floor movement. The mouse may need modifying so it will work a few inches off the floor. I will be a cool thing for the programs to work on.
|
I looked extensively in to optical mice last year however they do not work at high enough speeds to be feasible (even for this challenge) if you find one fast enough please inform me but the best i could get was ~5ft/s before it losses all idea of whats going on.
Quote:
My team is definitely trying to do this [4WD, all independently driven] but we can't figure out one thing:
How do you determine if a wheel is slipping when all four wheels are powered?
Any answer would be appreciated.
|
I realize this may be a pain (mostly for the mechanics) but the easiest way to determine wheel slippage is to compare the speed of each wheel to the speed of an driven encoder wheel next to it. Or (since the robot moves as a whole) you could get away with three encoder wheels telling you how the robot is moving and do some calculations to figure out how each wheel is moving.