What are the requirements for computer hardware for video surveillance?

Question

Iron

Task.
On a large number of remote objects more than 120 pcs. 2 megapixel ip cameras.
Remote Viewer allows you to view 64 streams simultaneously.
If you need more, it is possible to switch the page and connect 64 more cameras.
Please advise which computer to use for this?
Processor, size and type of RAM, video card, motherboard, power supply.
Will a 100 megabit channel from the provider be enough for these purposes? In principle, the quality of the stream from each camera can be reduced, but how will the computer cope with all this?
How much will this workstation cost?

Answer 1

2 MP - FullHD: 1960x1080 = 2116800 bytes
Number of frames: 25
We get per second: 52920000 bytes/sec
Or 50.47
Mbps Or 6.30875 Mbps from one camera.
We multiply by the number of cameras and get the required channel bandwidth.
This is provided that all cameras simultaneously give you a stream in this quality.
If all 120, then:
757.05 Mbps Is the
stream compressed with H.264 codec?
Then, in addition to the grid, it will run into memory - for some system there was a calculation based on 64 MB per camera.
Those. for realtime you must have a system with 1 GB channel and at least 8 GB of RAM (64 MB * 120 cameras).
Throw more OS consumption and get 10-12 GB of RAM, and if you want the RAM to work in dual-channel mode, then all 16 GB of RAM.
Prots, at least i5 - depending on the family - select a mother.
If you do not need to write the archive (you only have viewing in the conditions), I would advise a 100-120 GB SSD purely for the system.
The video card may be enough built into the percent. PSU 350-400 W with head.

Answer 2

As correctly said above, depending on which program the video stream receives and processes. For example, I have 30 IP cameras, they constantly transmit 12 fps 1920x1080 (no sound). Processes them "Line IP" . As a server - a regular PC with i7-6700 and 16Gb of RAM (WinServer2012R2). RAM is consumed by the system + Line about 20%, but the percentage is sometimes busy up to 90-95% (usually 75-80%).
That is, in my case, it is the processor that is critical, everything else is enough with a margin.

Answer 3

what cameras will be ip or ?

Answer 4

We go to the technical characteristics of the cameras and read the speed of the video stream. Then multiply by 120, add 20% reserve.
IMHO, if you need maximum quality, it won't work.

Answer 5

My dudes installed video surveillance at one facility, a regular video reg is cheap + 16 analog cameras.
Actually, when viewing all 16 cameras (at full resolution, I won’t say how many, but not very high - not HD), 40 megabits of the channel go away (according to Mikrotik).

Answer 6

Without specific information on the software, this is guessing on coffee grounds ...
If 64 cameras at a time, on how many monitors? on one? why do they all need full hd, in squares the size of a matchbox
In general, most software can use second streams from cameras (usually 320 or 640 wide), due to which the load on both channels and hardware is greatly reduced

Answer 7

Smartly, you can put 4 DVRs on 32 channels each, connect cameras to them. In addition, often such recorders have alarm inputs and outputs, which is convenient if there is an alarm, because when detected, the signal goes to the DVR and it automatically notifies you (using SMS / MMS) and security services. Also, there are audio inputs that record sound.
Another plus of DVRs, and not computers, is a huge functionality, such as motion detection, the ability to control the rotation of the camera. If the camera turns off, there is also an alert. This is unlikely to be allowed on a computer.
Integrated security systems| Pharaoh2000