[ros-users] Prosilica GC1020

[René Wagner]

On Sat, 2010-11-06 at 15:39 +0100, René Wagner wrote:
> On Fri, 2010-11-05 at 19:27 +0100, Steven Bellens wrote:
> > 2010/11/5 Patrick Mihelich <mihelich at willowgarage.com>:
> > > On Fri, Nov 5, 2010 at 8:44 AM, Steven Bellens
> > > <steven.bellens at mech.kuleuven.be> wrote:
> > >>
> > >> I'm experiencing this issue here now as well. The camera reponds on
> > >> pings, but ListCameras doesn't detect it. Same goes with the provided
> > >> SampleViewer application from prosilica: I find the camera on IP basis
> > >> - but the app is not listing it automatically. I've checked the wiki
> > >> page and followed all tutorials.
> > >> Can you give me any instructions on how to solve this problem?
> > >
> > > This is a separate issue. Your camera is probably hooked up via a switch.
> > > This is a limitation of the Prosilica SDK; it can only enumerate cameras
> > > with IP address on a local subnet. If the camera is not on the local IP
> > > subnet, you can still open it, but you have to know the IP address ahead of
> > > time. This is why we have the "How to Determine Your Camera's IP Address"
> > > tutorial, in case the camera isn't visible to the SDK and you've forgotten
> > > its IP address. As long as you can open the camera using the
> > > prosilica_camera node with ~ip_address set correctly, there's nothing to
> > > worry about.
> > 
> > The camera is hooked up directly to my computer.
> > I can open the camera using it's ip, but it is not giving any images
> > however! I've followed the tutorial to set up my network
> > configuration, verify the camera's IP etc, but still I can't get the
> > images to show up.
> 
> Try disabling the "firewall" (it's actually just a packet filter) for
> that particular network interface, or for the entire machine if you're
> not connected to any hostile networks
> (System->Administration->Firewall->"Disable").
> 
> My understanding of the GigE camera protocol is that there's a control
> port which is used to negotiate a port for data transfer. The camera
> then tries to connect to that port on the host. The issue is that the
> packet filter.

...blocks that connection attempt.

> I've updated the Troubleshooting page to cover that.
> http://www.ros.org/wiki/prosilica_camera/Troubleshooting
> 
> Rene
> 

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Dipl.-Inf. René Wagner                     Junior Researcher
DFKI Bremen                           Enrique-Schmidt-Str. 5
Safe and Secure Cognitive Systems             D-28359 Bremen

Phone: (+49) 421-218-64224       Fax: (+49) 421-218-98-64224
Web: http://www.informatik.uni-bremen.de/agebv/en/ReneWagner
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