Operation Manual
User Manual of Digital Video Recorder 
128 
Figure 8. 17 Set Direction of Line Crossing Detection   
3)  Set the sensitivity of the line crossing detection to 1-100. 
4)  Click   and set two points in the preview window to draw a virtual line. 
A
B
Figure 8. 18 Draw Virtual Line in the Image 
You can use the   to clear the existing virtual line and re-draw it. 
5)  Click Apply to save the settings. 
Task2: Configure the Intrusion Detection. 
1)  Select the intrusion region from the drop-down list. Up to 4 regions are selectable. 
2)  Select the sensitivity of the intrusion detection to 1-100. 
3)  Set the percentage to 1-100. Percentage defines the ratio of the in-region part of the object which can 
trigger the alarm. For example, when you set the percentage as 50%, half of the object entering the 
region will trigger the alarm. 
Figure 8. 19 Set Intrusion Detection   
4)  Set the time threshold to 0-10 sec. When the duration of the object in the defined detection area is 










