Re: [GEM-dev] USB 3.0 camera and Gem

Le 02/04/2012 09:48, Antoine Villeret a écrit :

hi,

i got 60 fps in 640x480 / grayscale which is the default image configuration and the more bandwith expensive for this camera

++ a

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Le 1 avril 2012 15:42, Jack <jack@rybn.org mailto:jack@rybn.org> a écrit :

Le 01/04/2012 14:18, Antoine Villeret a écrit :

...

hi jack,

i'm using a firewire 400 over RJ45 extender (from AVT) on a tour
with an AVT Guppy
it's work fine with 50m cable, it should work at least until 100m
but i never tried
it's not possible to use switch to increase the distance with
this kind of extender

you can use certain switches with GigE but it increases latency
i  think

another solution for very long distance (more than 100m) is the
optical fiber
you can find some firewire over optical fiber extender

Basler made a technical report on industrial cameras interface here :
http://www.i2s-vision.fr/upload/BAS1108_Interfaces.pdf

hope this helps

++
a.
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Le 1 avril 2012 13:56, Jack <jack@rybn.org
<mailto:jack@rybn.org>> a écrit :

    Le 01/04/2012 02:22, Max a écrit :

        Am 01.04.2012 um 01:53 schrieb Jack:

            PS : does anybody tried an other solution (like GigE
            or USB<->Ethernet<->USB) with Gem when you need long
            distance between camera and computer ? Is it very
            stable ?

        I could offer vnc access to a os x or ubuntu machine
        hooked up to either a Allied Vision Tech GigE or Firewire
        800 camera.

        m.


    Hello Max,

    Did you ever tried that solution ?
    Is it appropriate to detect very small movement and is it
    enough fast to be used in real time (not to much latency ?) ?
    ++

    Jack



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Hello Antoine,

Thanx to share your configuration and the Basler technical report,
it is a useful document.
What is the resolution the framerate you get on your computer from
your camera with that configuration ?
++

Jack

OK. I would prefer a camera with 640x480 pixels at 120 fps minimum to be more precise in the detection of very small movements. ++

Jack