Camera - PLC

[PeterEs]

Hello all,

I'm a belgian machine builder.
For a certain project we are asked to make a movement from a camera picture.
It goes like this: A camera makes a picture from a certain form. From this picture, I have to calculate the outline. This outline has to be transformed to a number of coordinates, that I have to follow with a X-Y-table.
Does anyone has any experience with these kind of things?
I know how to control a servo by sending the coordinates out of a PLC, but I don't know how to start on the first step.

Tnx for the help.

 

[xyzz]

This is definitely a case to involve the camera supplier engineering help guys.

 

[evdsande]

Hi Peter,

Are talking about some closed loop system or will it be a feed forward based upon the image data ?

How will you be doing the outline calculations, is a PLC capable of that ? All the systems I know use PC-based solutions to do image analysis.

If you are talking about a closed loop system, you will need a system that is fast enough to create sufficiant bandwidth.

When you choose to use a PC to analize the image, there are plenty of libraries taht you can use, you could check this site for more information on image processing libraries:

http://www.cs.cmu.edu/~cil/v-source.html

 

[Blue2bits]

Hi there.
We used the same sort of process to capture an image of a brick on a conveyor belt using the camera. The camera then interfaced with a visual basic program/excel to plot the coordinates, then sent the coordinates to the robot. You will have to use a PC with the correct software to do what you are aiming for.