how to run 2 same webcam models in labview.

[royal tiger]

hello everyone,

i was wondering that how can i run 2 same webcam models at the same time. Well i have been able to run 2 different webcam models at the sametime in the same VI but it gets confused when i try to use the same models. It  takes the images from the same camera even when i try to display the other camera. I used a VI that gives the hardware ID of the interfaced cameras as same webcam models will have different Hardware ID. But still it gets confused. Is there any one who is working or who had worked on the same lines. Please help me . Is there any other library that can be useful or any other software interfaced with labview. I would like to keep the option of modifying the current webcam library as the last option.
Thanking you.

Royal Tiger.

[Khalid]

Royal Tiger,

Not knowing what libraries you're using, I can only say that you can try running two paths of code in parallel -- one for each web cam.  If they're truly parallel and do not use any common references/resources, etc., then they shouldn't get "confused."

Maybe you can post your VI so we get a better idea. 

Regards,

-Khalid

[royal tiger]

Thank you khalid for repying to my message,

welll i am using Ivision Toolkit in  which i have been able to run different cameras at the same time. I have also been using NI-Imaq for USB cameras that supports only one camera at a time.But even if i try to 2 same camera models not at the same time but one after the other the VI gets confused and picks up the same camera always. Can u give me some inputs or any one who can me is most invited with his suggestion.

Regards,

Royal Tiger.,

[royal tiger]

hi,

also to add to previous note ,the Ivision toolkit also gets confused when i try to use the same camera models but works fine with different models.

Thanks..

Royal tiger.

[s_a_s]

This is a known issue with the driver that occurs when two of the same type of camera exist on the system.  Because the driver uses serial number information stored on the camera to distinguish between cameras, cameras of the same type will appear to be identical to the driver.  Also, because the USB driver is not supported and provided for free in an "as is" state, there are no current work arounds for this issue, and no development at this time on a bug fix.