Go to documentation repository
Page History
...
| Section | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Requirements for TCP/IP Network bandwidth for video signal transferring
Throughput capacity of the network refers to the factors restricting performance of the distributed network. Data exchange flow is primarily made up of image data. For instance, where surveillance cameras are used to monitor remote objects, likes ATMs, the data flow (image flow) is transmitted over communication links.
...
| Info | ||
|---|---|---|
| ||
In real conditions, the fluctuations of camera streams can be quite significant, depending on the scene illumination, the use of day/night mode, how much motion there is in the frame. To accurately calculate the required network bandwidth, it is necessary to measure the stream from cameras that are already installed on the secured site. |
Communication mode | Link capacity | Black and white image | Color image | ||||
standard | high | full | standard | high | full | ||
Dial-Up | 56 Kb/sec | <1* | <1* | <1* | <1* | <1* | <1* |
ADSL, Ethernet | 128 Kb/sec | 1 | <1* | <1* | <1* | <1* | <1* |
ADSL, Ethernet | 256 Kb/sec | 2 | 1 | 1 | 1 | 1 | <1* |
ADSL, Ethernet | 512 Kb/sec | 4 | 3 | 2 | 3 | 3 | 2 |
ADSL, Ethernet | 1 Mb/sec | 7 | 5 | 4 | 6 | 5 | 4 |
ADSL, Ethernet | 1.5 Mb/sec | 11 | 8 | 6 | 10 | 8 | 6 |
Ethernet | 2 Mb/sec | 14 | 11 | 8 | 13 | 10 | 8 |
Ethernet | 10 Mb/sec | 71 | 53 | 39 | 64 | 51 | 38 |
Ethernet | 100 Mb/sec | 711 | 533 | 388 | 640 | 512 | 376 |
Ethernet | 1 Gb/sec | 7282 | 5461 | 3972 | 6554 | 5243 | 3855 |
| Info |
|---|
| *max. one surveillance camera, provided that maximum compression and/or image flow gapping is supported. |
...
| Info | ||
|---|---|---|
| ||
| More often than not, video signal processing, transfer and recording requirements take up only a small proportion of the digital video surveillance system resources. While calculating performance of the video surveillance system, the proportion of resources, consumed by audio monitoring, may be neglected. |
Requirements for TCP/IP network bandwidth for database synchronization functionality
If the Intellect software operates in the distributed environment where several Servers and/or Remote Admin Workstations are combined the Configuration databases synchronization is performing (see Database synchronization setup).
...
With more badly parameters value the correct operation of databases synchronization functionality is not guaranteed.
Requirements to the TCP/IP network quality
The following connection quality requirements are imposed for the Intellect software video subsystem to work correctly when connecting IP devices via WAN:
- Latency no more than 10 seconds. If this value is exceeded, the IP device will be disconnected.
- Packet loss no more than 50%. If this value is exceeded, the video subsystem will work unstably, namely, frame skipping will be observed.
Keep in mind that analytics (service and smart detection tools, as well as other Intellect and vertical solutions detection tools) require a lower stream quality than live view and archive recording; therefore, quality requirements are usually met in modern TCP/IP networks for the analytics. See Configuration of multistream video for more information on the various streams.
Overview
Content Tools