User Manual

DS-720xHTI-Kx DVR User Manual
UM DS-720xHTI-Kx 012918NA 119
2) Drag the slider to set the detection sensitivity.
Sensitivity: Range [1-100]. Defines the size of the object that will trigger the alarm. The higher the
value, the more easily the detection alarm is triggered.
Percentage: Range [1-100]. Defines the ratio of the in-region part of the object that will trigger the
alarm. For example, if the percentage is set as 50%, if the object enters the region and occupies
half of the whole region, the alarm is triggered.
Figure 9-8 Set Intrusion Crossing Detection Rules
3) Click OK to save the rule settings and go back to the line crossing detection settings interface.
8. Click and draw a quadrilateral in the preview window by specifying the four vertices of the
detection region, and right click to complete drawing. Only one region can be configured. Use
to
clear the existing virtual line and re-draw it.
Up to four rules can be configured.
Figure 9-9 Intrusion Detection Draw Area
9. Click Apply to save the settings.