Bandwidth used by cameras

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A friend wants to view 12 camera's outputs in a factory from a remote site 24/7. VPN is probably the preferred technology. iBurst will be used for the upload leg (from factory) and ADSL for the download leg (into head office).

The question is whether the 9gig iBurst package plus 3gig top-up will suffice for a month? Does anyone have experience of this? Does it have to be measured the hard way?
 
well I think the hard way will have to be.

If you look at a cheapo internet camera, your normal resolution there is 640x480 with a min of 256 colors, not sure what size that will produce. but now if he wants live feed, he might have to multiply that by about 20fps. He might settle for a frame a second to save bandwidth. Also remember if it's a security camera you will probably want high quality so you can actually see santa's little elves helping themselves to the merchandise.

I think the basic calculation would be:

X = 12cameras * (sizeof 1 picture * fps) * seconds captured per month

That would give your monthly bandwidth usage.
 
The upload speed on iBurst is not great.
I get a max of about 10 Kbytes/sec, with good signal.

The max theoretical is 32Kbytes/sec. Haven't found anyone who gets that speed.

Can I suggest testing it first.
My experience from iBurst to ADSL is not a happy one. It was incredibly slow.
5 Kbytes/sec sometimes.
 
Thanks colleagues.

Will definitely test first if the user gets serious. I was also worried about iBurst upload speeds.
 
I think Iburst for the download and ADSL for the Upload makes far more sense.
Problem is that you need 512kb ADSL just to get decent upload speeds, maby 384 would cut it (128kb upload)

But you probably already have the ADSL installed at one location... so you just have to get great Iburst signal, I also found the upload speed sucks and it can jump around alot... not great conditions for live streaming of a video feed.

For the bandwidth requirements, why dont you just record a clip of say 1 min ans see how big the file is if you save it at the quality that you will be sending it, then you can check the exact amount.
 
Yes, it makes more sense if you are starting with nothing.

They already have DSL in Head Office and it is not available at the remote site, hence the search for an alternative.

Thanks for your thoughts.
 
In order for a solution like this to work you need exceptional compression technology.

Have a look at the products from a company by the name of Servision: http://www.servision.net Local supplier is http://www.git.co.za

Once you have that sorted I'd still recommend you carefully consider doing this since it's a bandwidth hog.

I manage to average around 30KB/s upload sustained via the Randpark Ridge tower so it IS doable.

If you have any questions PM me ... used to work a lot in that area of tech...
 
Sad to say it but diginet line with 256up/down or 512 up/down will prob be alot better and maybe cheaper... i'm no expert on digent price tags but i have seen a 512 diginet line costing 5-6k per month... So a diginet line for the one office to the other maybe better... (thats if u want a relatively good picture and fps, if u don't need that much then it can get cheaper).

It can get expensive if u need to transfer 100 gigs a month over ADSL/iburst (alot more than diginet).

With diginet u don't pay for the data transfered.
 
Jason, experiences vary...

Ave iBurst latency is <100 ms on all (9) sites that I have it installed. That is MORE than good enough for a camera monitoring solution.

Also, sustained upload rates of 32KB/s on 6 or those sites... that is identical to 512K ADSL upload rate....

Reality is that I've often seen ADSL upload rates struggle to average above 20KB/s on nonstandard ports....

BEST Advice is to test and take it from there .... Antennas are a *GOOD* idea on the iBurst units though.
 
Try the bandwidth calculator from Axis one of the leading IP camera
companies around based in Sweden
http://www.axis.com/techsup/cam_servers/bandwidth/bw_210.htm

Your frame rate per second is critical,the lower the frame rate the lower
the b/w required. Look for a camera thats support Motion detection
builtin like Axis 207 (smtp upload) 210&211 (ftp upload)

Network cameras from Axis
http://www.axis.com/products/video/camera/

Speak to Roy Alves from SCS Distribution (extremely helpful & Knowlegeable)
www.scsd.co.za
Tel : +27 11 548 6780
Fax : +27 11 548 6799
Cell : +27 83 680 1228

http://www.axis.com/solutions/index.htm
What to look for in designing a system
 
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