User's Manual

User’s Manual
119
5.5.5.2 Intrusion
Intrusion includes crossing areas and in-area functions.
● Crossing area means an alarm will be triggered when a target enters or leaves the area.
● In-area function means an alarm will be triggered when a specified number of targets
appear in a set alarming area at a given time. In-area function only counts the number of
targets in the detection area, regardless of whether they are the same targets.
● For the reporting time interval of the in-area functions, the system will trigger the first alarm
and then detect whether the same event occurs in the interval period. If no same event
occurs in this period, the alarm counter will be cleared.
Similar to the warning line, to detect an entry/exit event, a certain movement space should be
reserved at the periphery of the area line.
Applicable scenes: Scenes with sparse targets and no occlusion between targets, such as
perimeter protection of unattended areas.
Step 1 Select
Intrusion
from the
Rule Type
list.
Figure 5-92 Intrusion settings
Step 2 Click
Draw Rule
, and you can draw rules on the monitoring screen.
For parameter description, see Table 5-28.
Click
Clear
to the right of
Draw Rule
to clear all drawn rules.
Step 3 Configure intrusion parameter.