52
Relay out
Check it to enable alarm activation output port, it can activate corresponding alarm
output device when alarm occurs.
Alarm delay
It means the alarm delays a period of time to stop after alarm ends, the unit is second,
and the value ranges from 10s to 300s.
Send Email
Check it and the system can send out email to inform users when alarm occurs. User
can set email address in “Network>SMTP (email)”.
Snapshot
Check it and the system can realize alarm snapshot automatically when alarm occurs,
meanwhile it needs to set snapshot period of alarm in “Storage>Schedule”.
Table 3.4-7 Tripwire Description
Step 4
, Click
to complete config.
3.4.3.1.2 Cross Fence Detection
It will trigger alarm when the target crosses two warning lines.
Note
:
● It cannot support transparent fence, such as an iron fence.
● It cannot support too low fence (Which is lower than human height)
Application scene
: There are two alarms for crossing fence, Go up and Go down the fence.
● Go up the fence behavior is: The target rectangle
intersects
the bottom warning line. -> The target
rectangle
leaves
the bottom warning line. -> The center point of target rectangle
cross through
the top warning
line. -> Trigger alarm.
● Go down the fence behavior is: The center point of target rectangle
cross through
the top warning line. ->
The bottom of target rectangle
leaves
the bottom warning line. -> The target rectangle
intersects
the bottom
warning line. -> Trigger alarm.
The config steps are shown as follows:
Step 1
,
Select rule type as “Cross Fence Detection” and the config interface is shown in Figure 3.4-12:
Figure 3.4-12 Cross Fence Detection
Step 2
, Click
to draw rules in the monitoring image.
