Dahua Technology WizMind IPC-PDBW82041-B360, Operation Manual

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Operation Manual
106
Rule Description
Missing object
triggered if pedestrian or vehicle stays for a long time. If the
abandoned object is smaller than pedestrian and vehicle,
set the target size to filter pedestrian and vehicle or properly
extend the duration to avoid false alarm triggered by
transient staying of pedestrian.
● During the detection of crowd gathering, false alarm might
be triggered by low installation height, large percentage of
single person in an image or obvious target occlusion,
continuous shaking of the camera, shaking of leaves and
tree shade, frequent opening or closing of retractable door,
or dense traffic or people flow.
Fast moving
Parking detection
Crowd gathering
Loitering detection
Step 6 (Optional) Click other icons at the right side of the image to filter targets in the image.
● Click
to draw the minimum size of the target, and click to draw the
maximum size of the target. Only when the target size between the maximum size
and the minimum size, can the alarm be triggered.
● When the rule of crowd gathering is configured, you do not need to set target filter,
but draw the minimum gathering area. Click to draw the minimum gathering
area in the scene. The alarm is triggered when the number of people in the
detection area exceeds the minimum area and the duration.
● Click
, and then press and hold the left mouse button to draw a rectangle, the
pixel size is displayed.
● Click
to delete the detection line.
Step 7 Set rule parameters for IVS.
Table 8-8 Description of IVS parameters
Parameter Description
Direction
Set the direction of rule detection.
● When setting tripwire, select
A->B , B->A , or A<->B .
● When setting intrusion, select
Enter , Exit , or Both .
Action
When setting intrusion action, select
Appears
or
Cross
.
Target Filter
Click to enable this function.
● When you select
Human as the alarm target, an alarm will be
triggered when the system detects that persons trigger the
rule.
● When you select
Motor Vehicle as the alarm target, alarm
will be triggered when the system detects that vehicle triggers
the rule.
Duration
● For abandoned object, the duration is the shortest time for
triggering an alarm after an object is abandoned.
● For missing object, the duration is the shortest time for
triggering an alarm after an object is missing.
● For parking detection, crowd gathering, or loitering detection,
the duration is the shortest time for triggering an alarm after
an object appears in the area.