Canon VB-H41 Bedienungshandbuch PDF herunterladen (Seite 31)

System Design

Introduction

 Notes on Using Motion Detection Recording / Intelligent Function Recording

• The motion detection feature notifies you there is motion in an area when motion is not ordinarily expected. Do not use

this feature for busy areas where motion detection may be triggered frequently.

• Configure motion detection on the camera side. If you configure motion detection on the Storage Server side, the load on

the Storage Server may increase, resulting in decreased recording performance.

 Notes on Storage Server Operation

We recommend that you dedicate the Storage Server computer exclusively to running this software.

Be sure to avoid the following on the Storage Server computer:

• Running Web server software on the computer

You cannot operate the Storage Server on a computer where Web server software such as Windows standard IIS

(Internet Information Server) or Apache is already installed.

The Storage Server uses HTTP protocol to communicate with cameras. Therefore, the Storage Server may not work

normally if other Web service applications exist on the same computer.

The HTTP port used by this software is 80 and cannot be changed.

• Running database server software (e.g., SQL Server, Oracle) on the computer

Database processing can place a load on the hard disk that may affect recording performance. Conversely, this

software may affect database server performance when it performs tasks that place a load on the hard disk.

• Using the computer as a file server

The hard disk is frequently accessed when the computer is used as a file server, and this may affect recording

performance. In addition, the Storage Server is more likely to run out of disk capacity if the computer is operated as a file

server.

• Running other applications on the computer

The additional processing load from running applications other than this software may affect recording performance.

This software uses the TCP port numbers 80, 443, 11080 and 2380. These ports should not be used by other

applications.

Calculating Network Bandwidth

You need to consider the network bandwidth if you want to use a network camera for both recording and live view.

You must calculate the network bandwidth both for the Storage Server and the Viewer.

When using the VB-H41 for example, calculate the bandwidth as follows if you use one Storage Server (320 x 240 1 fps) and

two Viewers (320 x 240 5 fps):

• Bandwidth for recording

10.8 (KB/frame) x 1 (frames/sec.) x 8 (bits) = 86.4 Kbps

• Bandwidth for live view (per Viewer)

10.8 (KB/frame) x 5 (frames/sec.) x 8 (bits) = 432 Kbps

Therefore, the required network bandwidth is calculated as follows:

86.4 Kbps x 1 + 432 Kbps x 2 = 950.4 Kbps (approx. 0.9 Mbps)

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Canon VB-H41 Bedienungshandbuch Seite 31