How does your auto-aim work?

We can read about torque and speed in books, we can build a robot and drive it, but determination and character are built by time and encouragement, not just by studying. - Eugenia Gabrielov [more]

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How does your auto-aim work?

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#20

07-03-2006, 17:48

Greg Ross

Grammar Curmudgeon

AKA: gwross

FRC #0330 (Beach 'Bots)

Team Role: Mentor

Join Date: Jun 2001

Rookie Year: 1998

Location: Hermosa Beach, CA

Posts: 2,245

Greg Ross has a reputation beyond repute

Re: How does your auto-aim work?

We'll find out this weekend how (or whether) our auto-aim works.

We fix-mounted our camera such that at the base of the ramp, the target is at the top of the camera's field of view, and at half court, it is at the bottom. Based upon the Y position of the blob centroid, we calculate (actually lookup) the required shooter speed. We also have an auto-aim driving mode which uses the blob centroid's X position as input to a PID control loop to get and keep the robot pointed at the goal.

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Greg Ross (The Grammar Curmudgeon formerly known as gwross)
S/W Engineer, Team 330, the Beach 'Bots

<--The Grammar Curmudgeon loves this cartoon.
“Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!" Hunter S. Thompson
"Playing a practical joke means doing something mean and calling it funny." Me

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