User Manual of Network Video Recorder 
98 
Intrusion Detection 
Click the    button, and then specify 4 points to set a quadrilateral region for intrusion detection. 
 
Only one region can be set. 
Motion Detection 
i.  Click the    to set the search area manually. 
ii.  Click and drag the mouse to draw target searching area(s), or click the    button to set the full 
screen as the area. 
3)  Click the    to search, and then the result will be displayed as    in the progress bar of the Smart 
Playback interface. 
Or you can click the    button to clear all the set areas. 
5.  Click the    button to play. 
 
Figure 6. 20 Smart Search Result 
 
 
Playback progress bar: use the mouse to click any point of the progress bar to locate specific frames. 
6.1.6  Playing Back by System Logs 
Purpose: 
Play back record file(s) associated with channels after searching system logs. 
Steps: 
1.  Enter Log Information interface. 
Menu>Maintenance>Log Information 
2.  Click Log Search tab to enter Playback by System Logs. 
Set search time and type and click Search button.