2014 Vision Code

[bvisness]

Originally Posted by jojoguy10

Looking at it more...I think processing on the cRIO would be easier. We're only using Vision for Autonomous, then we're planning on disabling vision.

Careful with that. When we tried that in the past, we found that it lagged the cRIO so much that we started getting watchdog errors - the cRIO couldn't communicate fast enough.

As for sending data from the DS back to the robot, you can usually just use NetworkTables to send the data. NI's code and RoboRealm both have easy NetworkTables integration built-in. (Not sure about OpenCV, haven't tried it.)

[jojoguy10]

Thank you all for the help! We'll be doing some major testing to find the best route to go with and I'll come back with some questions if needed.

Thanks again!

[RufflesRidge]

Originally Posted by bvisness

Careful with that. When we tried that in the past, we found that it lagged the cRIO so much that we started getting watchdog errors - the cRIO couldn't communicate fast enough.

That all depends on the rate and complexity of the processing. You could probably get away with processing 1 image per match this year which shouldn't cause any problems at all running on the cRIO.

[bvisness]

Depending on your auton routine of choice, I suppose. We're going to try for more complex autonomous routine this year, so we'll need as much flexibility in the vision as we can get.

[Greg McKaskle]

The LV example code for finding a game ball is takes two passes. While it would run on the cRIO, the robot and potentially the ball are both moving. I would think it would be hard to accomplish this without a DS or additional processor. The field targets seem pretty easy to do on the cRIO or any of the other approaches. By the way, "easy-vision" is still vision -- it's all relative.

Greg McKaskle