hardware streaming 30 cams

[navidos]

Hello everyone!

i have a quistion regadring streaming live video over internet.
since im new in this im asking for your experiies i this area,

Im in need of streamin out 30 cams 24h/7
and im wondering what type of computer do i need,

is it enough with one computer or do i need several.
what type of broadband will i need
is 100mb/ sek enough or should i request more from te isp.

hope some of you can help me out..

sincerly

navidos

[Dave]

Depends on several factors such as what sort of cameras you intend to use, what video bit rates, how many client streams are required to be supported, etc.

If the cameras have built in encoders e.g. network webcams, and only a few connections are required per camera, then you could even do it without a computer. Some ethernet CCTV systems may also be of interest.

If you require a lot of connections per camera, then you will probably require a streaming server to multiply the streams to support the required numbers.

If your cameras don't have built in encoders, then you will probably require a number of computers to carry out the encoding before sending the stream to the streaming server. If you are looking at 24/7 you may need extra computers to provide resilience.

Bandwidth will depend on the total number of streams and their bit rates at any one time. This will also depend on whether you have a streaming proxy available at the ISP end, which means you may only have to send 30 streams over the broadband connection instead of 3,000.

Dave

[navidos]

(07-19-2009 03:32 PM)Dave Wrote:  Depends on several factors such as what sort of cameras you intend to use, what video bit rates, how many client streams are required to be supported, etc.

If the cameras have built in encoders e.g. network webcams, and only a few connections are required per camera, then you could even do it without a computer. Some ethernet CCTV systems may also be of interest.

If you require a lot of connections per camera, then you will probably require a streaming server to multiply the streams to support the required numbers.

If your cameras don't have built in encoders, then you will probably require a number of computers to carry out the encoding before sending the stream to the streaming server. If you are looking at 24/7 you may need extra computers to provide resilience.

Bandwidth will depend on the total number of streams and their bit rates at any one time. This will also depend on whether you have a streaming proxy available at the ISP end, which means you may only have to send 30 streams over the broadband connection instead of 3,000.

Dave

thanx dave for the answer.

there will 30 users each per camera. each user can only watch 1 camera. so you will never have more than 30 user on acutally watching or loading the site. the fps rate is not of importence since the camera will be filming a non moving objekt. so maybe a regular webcam will do such as Microsoft Lifecam VX-3000 ,

or do you have any recomendations for me and what type of camera i should invest in?

[Dave]

If there is only one user per camera, then you could avoid having to use a streaming server.

You could also avoid having to use a computer if you opted for some sort of a network camera. Just plug 30 network cameras into a 48 port network switch, configure the camera settings and you are on-line. Each user then connects directly to a particular camera.

Cost will come into it as network cameras still tend to be quite expensive, although you can get some cheaper ones like:
http://cpc.farnell.com/grandtec/ip-camer...dp/CS15557

USB cameras like the VX-3000 are cheap (VX-1000 even cheaper) however you will need some sort of encoder to stream them. This would involve a number of computers, as I doubt you will manage to run 30 off one machine.

It may be worth looking at some of the low end security systems, as some of them are based around USB cameras, but typically I think they are just doing a video frame grab from each camera in turn.

You could also perhaps try a network USB hub (Belkin make one) but you may find you need to use older cameras to keep the data rate manageable. Modern hi-res webcams can use a lot of bandwidth over USB.

You mention low frame rate, but is video resolution important ?

Also, what sort of interface is the end user going to be using ? Some sort of web page, or will it be a custom application ? This may have an impact on the options.

Dave

[sri]

(07-20-2009 12:24 PM)Dave Wrote:  If there is only one user per camera, then you could avoid having to use a streaming server.

You could also avoid having to use a computer if you opted for some sort of a network camera. Just plug 30 network cameras into a 48 port network switch, configure the camera settings and you are on-line. Each user then connects directly to a particular camera.

Cost will come into it as network cameras still tend to be quite expensive, although you can get some cheaper ones like:
http://cpc.farnell.com/grandtec/ip-camer...dp/CS15557

USB cameras like the VX-3000 are cheap (VX-1000 even cheaper) however you will need some sort of encoder to stream them. This would involve a number of computers, as I doubt you will manage to run 30 off one machine.

It may be worth looking at some of the low end security systems, as some of them are based around USB cameras, but typically I think they are just doing a video frame grab from each camera in turn.

You could also perhaps try a network USB hub (Belkin make one) but you may find you need to use older cameras to keep the data rate manageable. Modern hi-res webcams can use a lot of bandwidth over USB.

You mention low frame rate, but is video resolution important ?

Also, what sort of interface is the end user going to be using ? Some sort of web page, or will it be a custom application ? This may have an impact on the options.

Dave

---

(07-20-2009 12:24 PM)Dave Wrote:  If there is only one user per camera, then you could avoid having to use a streaming server.

You could also avoid having to use a computer if you opted for some sort of a network camera. Just plug 30 network cameras into a 48 port network switch, configure the camera settings and you are on-line. Each user then connects directly to a particular camera.

Cost will come into it as network cameras still tend to be quite expensive, although you can get some cheaper ones like:
http://cpc.farnell.com/grandtec/ip-camer...dp/CS15557

USB cameras like the VX-3000 are cheap (VX-1000 even cheaper) however you will need some sort of encoder to stream them. This would involve a number of computers, as I doubt you will manage to run 30 off one machine.

It may be worth looking at some of the low end security systems, as some of them are based around USB cameras, but typically I think they are just doing a video frame grab from each camera in turn.

You could also perhaps try a network USB hub (Belkin make one) but you may find you need to use older cameras to keep the data rate manageable. Modern hi-res webcams can use a lot of bandwidth over USB.

You mention low frame rate, but is video resolution important ?

Also, what sort of interface is the end user going to be using ? Some sort of web page, or will it be a custom application ? This may have an impact on the options.

Dave

---

hi friends ......
Here is something intresting for you all .....
<a href='http://www.google.com'</a>