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System Design Concept
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System Overview
Use the following example for reference when selecting the PC where the Viewer should
be installed.
Use the Windows XP Professional SP2 for the operating system.
1) CPU: Pentium4 3.0GHz, memory: 1GB, graphics board: Quadro FX540
When using the VB-C50i with Resolution=340 x 240 and Quality=50:
Total frame rate: Max. 220 fps
2) CPU: Pentium4 3.6GHz, memory: 1GB, graphics board: Quadro FX1400
When using the VB-C50i with Resolution=340 x 240 and Quality=50:
Total frame rate: Max. 260 fps
3) CPU: Pentium4 3.8GHz, memory: 1GB, graphics board: Quadro FX1400
When using the VB-C50i with Resolution=340 x 240 and Quality=50:
Total frame rate: Max. 280 fps
Network Bandwidth Concept
You must consider the network bandwidth when recording video or viewing live video from
the network camera.
The network bandwidths must be calculated separately for recording and live viewing.
Example:
With one recording server (QVGA, 1 fps) and two live viewing servers (QVGA, 5 fps):
Bandwidth for recording
15 (KB/frame) x 1 (frame/sec) x 8 (bits) = 120 Kbps
Bandwidth for live viewing (per server)
15 (KB/frame) x 5 (frame/sec) x 8 (bits) = 600 Kbps
Therefore, required network bandwidth is calculated as follows:
120 Kbps x 1 + 600 Kbps x 2 = 1320 Kbps = Approx. 1.3 Mbps
Note that the line speed unit is bps (bits per second).
The total frame rate is calculated as: Number of Camera
Servers in the Viewer window x Frame rate. That is, with 10
Camera Servers and 10 fps frame rate, the total frame rate is
100 fps.
Note that the total frame rate varies depending on the
combination of the PC and graphics board. It is also affected
by other applications (e.g., anti-virus application) running on
the same PC.
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