Sony IP55, Руководство пользователя

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8-12
Symptoms, Causes and Solutions
Compro IP55/60/70 Network Camera
Symptom Possible Cause/Solution
Reference
page(s)
Part of image becomes pixelated
/ Square color blocks are seen
Network bandwidth is insufficient.
Without sufficient bandwidth, video quality will deteriorate and
image errors like pixelation or frame-drop may occur. When you
view your camera remotely from the Internet, your camera needs
sufficient upload bandwidth to transmit video stream and you
need sufficient download bandwidth to download video stream
at the remote location.
To gain satisfactory video quality, ensure there is sufficient upload
bandwidth available to your network camera by taking the
following actions:
1. Contact your Internet Service Provider (ISP) to confirm the
upload/download speed limit of your service. If the bit rate
of the video stream is set at 512Kbps or higher but your
Internet service only provides a max. of 512Kbps upload
bandwidth, then try to lower the bit rate setting in [Setup]
> [Video].
2. Run a network speed diagnostics on WebVUer to
determine the bandwidth level of the currently connected
network. To do so, log in to your camera using WebVuer
and go to [Setup] > [Network] > [Network Bandwidth].
When the speed diagnostics is done, the WebVUer will
advise you of the appropriate setting.
Consider the following action to ensure sufficient download
bandwidth at your remote viewing location:
1. Contact your Internet Service Provider (ISP) to confirm the
upload/download speed limit of your service. If the bit
rate of the video stream is set at 3Mbps or higher but your
Internet service only provides a max. of 2Mbps download
bandwidth, then try to lower the bit rate setting in [Setup]
> [Video].
2. Upgrade to Gigabit network switch. Regular 10/100
Mbps network switch cannot handle multiple megapixel
channels, thus you may consider upgrading to Gigabit
network switch when building up your network
infrastructure.
3. While you are viewing the network camera remotely,
shutting down any other applications that are also
consuming the network bandwidth in the background.