the framerate is not limited by the rj45 extender but by the camera itself (in my case)<br>and i think the bandwidth of the extender is wide enough to transfer 120 fps @ 640x480<br>and you often can reduce the scan area of industrial camera sensor to increase framerate<br>
for example a 640x480 sensor which outputs 90 fps can outputs 180 fps @ 320x240<br><br>++<br>a<br>
<br><br><div class="gmail_quote">Le 3 avril 2012 11:34, Jack <span dir="ltr"><<a href="mailto:jack@rybn.org">jack@rybn.org</a>></span> a écrit :<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Le 02/04/2012 09:48, Antoine Villeret a écrit :
<div><div class="h5"><blockquote type="cite">hi,<br>
<br>
i got 60 fps in 640x480 / grayscale which is the default image
configuration and the more bandwith expensive for this camera<br>
<br>
<br>
++<br>
a<br>
<br>
<br>
<br>
<br>
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<div class="gmail_quote">Le 1 avril 2012 15:42, Jack <span dir="ltr"><<a href="mailto:jack@rybn.org" target="_blank">jack@rybn.org</a>></span>
a écrit :<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Le 01/04/2012 14:18,
Antoine Villeret a écrit :
<div>
<div>
<blockquote type="cite">hi jack, <br>
<br>
i'm using a firewire 400 over RJ45 extender (from AVT)
on a tour with an AVT Guppy<br>
it's work fine with 50m cable, it should work at least
until 100m but i never tried<br>
it's not possible to use switch to increase the
distance with this kind of extender<br>
<br>
you can use certain switches with GigE but it
increases latency i think<br>
<br>
another solution for very long distance (more than
100m) is the optical fiber <br>
you can find some firewire over optical fiber extender<br>
<br>
Basler made a technical report on industrial cameras
interface here :<br>
<a href="http://www.i2s-vision.fr/upload/BAS1108_Interfaces.pdf" target="_blank">http://www.i2s-vision.fr/upload/BAS1108_Interfaces.pdf</a><br>
<br>
hope this helps <br>
<br>
++<br>
a.<br clear="all">
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<div class="gmail_quote">Le 1 avril 2012 13:56, Jack <span dir="ltr"><<a href="mailto:jack@rybn.org" target="_blank">jack@rybn.org</a>></span>
a écrit :<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Le 01/04/2012 02:22, Max a écrit :<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Am 01.04.2012 um 01:53
schrieb Jack:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> 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 ?<br>
</blockquote>
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.<br>
<br>
m.<br>
</blockquote>
<br>
Hello Max,<br>
<br>
Did you ever tried that solution ?<br>
Is it appropriate to detect very small movement
and is it enough fast to be used in real time (not
to much latency ?) ?<br>
++<br>
<br>
Jack<br>
<br>
<br>
<br>
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</blockquote>
</div>
<br>
</blockquote>
<br>
</div>
</div>
Hello Antoine,<br>
<br>
Thanx to share your configuration and the Basler technical
report, it is a useful document.<br>
What is the resolution the framerate you get on your
computer from your camera with that configuration ?<br>
++<span><font color="#888888"><br>
<br>
Jack<br>
<br>
<br>
</font></span></div>
</blockquote>
</div>
<br>
</blockquote>
<br></div></div>
OK. I would prefer a camera with 640x480 pixels at 120 fps minimum
to be more precise in the detection of very small movements.<br>
++<span class="HOEnZb"><font color="#888888"><br>
<br>
Jack<br>
<br>
<br>
</font></span></div>
</blockquote></div><br>