User Manual

DS-72xxHUI-Kx, DS-72xxHQI-Kx Digital Video Recorder (DVR) User Manual
124 UM DS-72xxHUI-Kx, DS-72xxHQI-Kx 062817NA
• Threshold: Range [1s-10s], the threshold for the time the object loiters in the region. When the object
in the defined detection area loiters longer than the set time, the alarm will be triggered.
a) Drag the slider to set the detection sensitivity.
• Sensitivity: Range [1-100]. This value defines the size of the object that will trigger the alarm. The
higher the value, the more easily the detection alarm will be triggered.
• Percentage: R
ange [1-100]. Percentage defines the ratio of the in-region part of the object that will
trigger the alarm. For example, if the percentage is set to 50 percent, when the object enters the region
and occupies half of the whole region, the alarm is triggered.
Figure 159, Set Intrusion Crossing Detection Rules
8. Click OK to save the rule settings and back to the line crossing detection settings interface.
9. Click and draw a quadrilateral in the preview window by specifying four vertexes of the detection
region, and right click to complete the drawing. Only one region can be configured.
Click to clear the existing virtual line.
Up to four rules can be configured.
Figure 160, Draw Area for Intrusion Detection