Dahua NVR52-4KS2 Series User Manual page 279

2. Click to draw the minimum size or maximum size to filter the target.
The system triggers an alarm only when the size of detected target is between the
maximum size and the minimum size.
3. Configure parameters.
Parameter
Preset
Name
Sensitivity
4. Click OK.
Step 6 Configure alarm schedule and linkage.
Figure 5-145 Fast moving
Table 5-36 Fast moving parameters
Description
Select a preset you want to use IVS.
Customize the rule name.
You can set alarm sensitivity. The higher the value, the easier to detect a
fast moving object but meanwhile the higher false alarm rate.
263
User's Manual