Samsung 31 用户手册

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页码 102
 
Chapter 5: Using the Web browser 
truVision DVR 31 User Manual 
47 
•  Network settings including bandwidth throttle, e-mail, DDNS, and UPnP setup 
•  System settings including system date and time, audio, unit name, RS-485, 
RS-232, language, and hard drive setup 
The configuration screen also lets you view the unit’s information.  
Searching and playing recorded video 
To search for and play back recorded video, click the Playback button. The 
Playback screen displays. Select the camera, date and time from which you want 
to play back video, and then click Start. Video is played back at the viewer. Use 
the playback control bar to forward, reverse, or pause playback video. 
You can also search for video by events or text. Click the Search button to 
display the Event List screen. Select the appropriate tab and enter your search 
criteria. The Event List screen also lets you download results to your PC as DRV 
files. 
Using the mouse to zoom in or out 
During live or playback mode, you can use the mouse to quickly zoom in on a 
video image. To zoom in, right-click on a video tile, then use the scroll wheel to 
zoom in or out. When a video image is zoomed in, you can drag the video image 
to pan out to different areas. 
Live dual streaming 
The Live Dual Streaming function lets you view video from up to 16 cameras on 
the Web browser interface while on a lower bandwidth network. This feature 
utilizes a second and smaller video data stream that is sent over the network. 
Click on the Bandwidth Control Switch button (shown in Figure 19 on page 48) in 
the Web browser interface and select the appropriate bandwidth setting to enable 
dual streaming. Predefined bandwidth settings (for the second stream) in the 
browser include: 
• 768 
kbps 
• 576 
kbps 
• 384 
kbps 
• 192 
kbps