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axilleas
September 26, 2012, 09:52:14
Hi

I am working on a project with 15 to 20 cameras.
Hopefully I want to aquire a shot from all of them from one PC every 500ms (global shutter).
I do not have 20 cameras at the moment to test.
What problems may occure?
Will the driver support them? Will a hardware support them?

I work with 640x480 monochrome with ROI 1/2 of the actual size.

I prefer GigE due to industrial application.

With CMOS USB I need active USB hubs but by connenting them to different USB hosts the bandwidth will be more than GigE. Am I right?

Will a dual GigE ******board work faster?

Any experience on that is appreciated.

Thank you.

Regards
Achilleas

Stefan Geissler
September 28, 2012, 09:26:53
Dear Achilleas,

In any case you should take care of bandwidth. You can reduce the amount of bandwidth, be reducing the frame rate.
GigE has higher bandwidth than USB, therefore, I would use GigE cameras. These cameras can be provided with power by an external power supply, so you have not to bother about powering them.

We run until now 7 cameras at 1600x1200@10 fps using three NICs in one PC. The CPU workload is below 70%, so I suppose, this should not be a problem in your environment.