Dahua IPC-HFW2431T-ZS-S2, Operation Manual

Page: 175 / 247

Rule Description Applicable Scene
Abandoned object
When an object is abandoned in the
detection area over the set time, the
system performs alarm linkages.
Scenes with sparse targets and
without obvious and frequent
light change. Simple scene in
the detection area is
recommended.
●
Missed alarms might
increase in the scenes with
dense targets, frequent
occlusion, and people
staying.
●
In scenes with complex
foreground and
background, false alarm
might be triggered for
abandoned or missing
object.
Missing object
When an object is taken out of the
detection area over the defined time,
the system performs alarm linkages.
Scenes with sparse targets and
without obvious and frequent
light change. Simple scene in
the detection area is
recommended.
●
Missed alarm might
increase in the scenes with
dense targets, frequent
occlusion, and people
staying.
●
In scenes with complex
foreground and
background, false alarm
might be triggered for
abandoned or missing
object.
Fast moving
When the motion speed is higher than
the configured speed, the system
performs alarm linkages.
Scene with sparse targets and
less occlusion. The camera
should be installed right above
the monitoring area. The light
direction should be vertical to
the motion direction.
Parking detection
When the target stays over the
configured time, the system performs
alarm linkages.
Road monitoring and traffic
management.
Crowd gathering
When the crowd gathers or the crowd
density is large, the system performs
alarm linkages.
Scenes with medium or long
distance, such as outdoor
plaza, government entrance,
station entrance and exit. It is
not suitable for short-distance
view analysis.
Operation Manual
164