can i use labview to capture and process images from ip cameras connected to a switch.

[patelraj777]

Hi,

i have more then one ip cameras conneted in LAN by a switch. i have a PC conneted to same switch. is it possible to capture images from these ip cameras and process them(for example performing simple barcode scan or QR-code scan or OCR)?  Which IP cameras will be supported?

[TiTou]

At least some IP cameras are supporter, maybe not all though... see here. what brand / models do you have?

[patelraj777]

At present I haven't bought any cameras yet. I was going to buy only after coming to know which cameras would be compatible for my application. Going through NI website I found that basler and axis cameras are compatible when connected directly to a cRIO system. But in my case I have them connected to PC via switch.

[BlueCheese]

There is functionally no difference whether the camera is connected directly to the system or via a switch. Both should work the same. The only real requirement that you'd need to care about is whether the switch can pass multicast UDP traffic correctly (this is used for network discovery of IP cameras). Generally all unmanaged switches (probably what you are using) will treat multicast traffic identical to broadcast traffic, but some managed switches/routers may need to be configured to pass multicast.

Eric

[Bob_Schor]

Sorry, I didn't see this when you posted it.  We currently have 24 Axis M-1031 cameras monitoring 24 stations, and record 5-10" of video if any station registers a "significant event".  Not a problem (though we had to do a bit of Advanced Handwaving to get MAX to see the cameras that were in a different subnet).

BS

[toineroetman]

I use switch with Labview on PC. I use a switch which supports JUMBO frames for better performance.

Netgear Gs108T. Also with Basler or Manta GigE Camera.

Toine

[1100fps]

I have run up to 5 cameras into LabVIEW through a switch.  Today I tried to run one camera through a switch and only got one of the switches to work (I Tried 4 switches and hubs) and I had to dumb the packet size down to 1.5K, but it works.  

[Bob_Schor]

I'm not sure what you mean by "a switch".  More than a decade ago, I mentioned we were managing 24 cameras that were connected to a TCP/IP "something-or-other" that (as I remember it) sent them out through two IP addresses that, in MAX, we addressed as "IP Address::channel" (where "channel" was from 0 to 11, but I didn't set this up, don't remember the details of the hardware, might not have correctly described how MAX saw these 24 cameras (except the identifier for each was something like IP, a separator, and a sub-channel number).  This might be called something other than a "switch", but I'm not an electrical engineer (or computer scientist) ...

Bob Schor