User manual

72D-Link D-ViewCam User Manual
Section 5 - Troubleshooting
5. How are multiple camera views displayed on the screen?
If you deploy several cameras and they are all displaying video at the same time, you have several options to arrange
the display of these videos on your computer screen. One option is to reserve a major part of the screen to display
the video from a single camera. Another option is to split the screen to show videos from multiple cameras. To switch
the display from one camera to another, you can either manually select a camera, or have the system automatically
display videos from all cameras in turn, called auto rotation.
6. Does D-Link D-ViewCam support cameras that have motion detection capability?
Yes. If the camera has motion detection function, D-ViewCam will take advantage of that. When the camera does
not have motion detection capability, D-ViewCam will perform software motion detection for it, at the cost of system
performance.
7. How do I estimate an adequate disk space to store the recorded video?
The Disk Space required can be calculated with these two formulas:
1. For MJPEG cameras: Frame Size x Frame per Second x Total Second, or
2. For MPEG4 cameras: Bit rate / 8 x Total second.
For example:
MJPEG cameras:Recordingatmediumquality CIF(10Kbytes/frame)at30FPSforaweekrequires173GBytes/
camera
MPEG4 cameras:Recordingwithbitrateat64kbps(lowqualityCIF)foraweek=4.6GBytes/camera
Note: The data revealed here is only for reference. The real recording capacity depends on the view and
environment.
8. Do I need a very powerful computer to run D-Link D-ViewCam?
Please refer to the System Requirements table on page 4. To monitor more than 16 cameras simultaneously, the
quality of the live video display may depend on your hardware specication.
Note: If a mega pixel camera is used with the D-ViewCam application, the minimum system requirement should be
raised to CPU: Intel P-4 3.4GhZ or above with 1GB of memory due to the resources required to process and store
large amounts of image data.