Vision Processing and Camera
 

Hi -

We are having a problem where the cRIO "crashes" or keeps losing comms from the laptop when we try to run the code for vision processing on the cRIO. We used the NI Vision Assistant to generate code which we put into Labview to run on the cRIO, and the actual NI Vision program works when the VI is ran locally on the computer. Is there something that we might have missed?

Thanks,
Jason Law

Re: Vision Processing and Camera
 

If you are using an 8-slot you may be using a function that isn't in the vision library (the 8-slot has a reduced library). It is also possible you are using up all of the cRIO CPU. You can check this on the Charts tab of the Driver Station.

Beyond that what I would recommend is using the imaging tool to enable NetConsole and using that to see if there are any error messages being thrown to the console.

Re: Vision Processing and Camera
 

We are using a 4-slot cRio and will try debugging it using the Netconsole.

Thanks,
Jason Law

Re: Vision Processing and Camera
 

We imaged the cRIO with NetConsole, but when the cRIO crashes and reboots, it sends us this long error message:

I don't really know what any of these actually means. Is there something else that we should try?

Thanks,
Jason Law

Re: Vision Processing and Camera
 

Here's a picture of our Labview code. Is there something that we did wrong?

https://docs.google.com/file/d/0BxDN...lUQ/edit?pli=1


Thanks,
Jason Law

Re: Vision Processing and Camera
 

What is the IVA icon at the far right of the picture doing? My guess is that you are using some uncommon vision functions and have found a but, possibly due to odd parameters being passed in. If you send in your entire project, we can look at it more closely. Send it to the NI forum.

Greg McKaskle

Re: Vision Processing and Camera
 

We had a problem like that for a while when we started vision processing. Look for memory leaks, undeleted pointers to images, etc. some of the different ways of image acquisition don't overwrite the old image but put a new one in memory. Try a loop counter to see how many times it runs. if it runs 20-30 loops and then stops, that's most likely your problem.

Can you post your code that handles images?

Re: Vision Processing and Camera
 

It never even get through the first loop (returned 0 loops)

Here is the vision processing VI:http://dl.dropbox.com/u/58862361/Vis...eFilterting.vi

And here is how it is used: http://dl.dropbox.com/u/58862361/Vision%20Processing.vi

Jason Law