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Operation Manual
131
5.1.2 Subscribing Alarm
5.1.2.1 About Alarm Types
For alarm types and preparations of alarm events, see Table 5-2.
Table 5-2 Description of alarm types
Alarm Type Description Preparation
Motion Detection
The alarm is triggered when
moving object is detected.
Motion detection is enabled. For
details, see "5.4.1 Setting Motion
Detection".
Disk Full
The alarm is triggered when the
free space of SD card is less
than the configured value.
The SD card no space function is
enabled. For details, see "5.19.1
Setting SD Card".
Disk Error
The alarm is triggered when
there is failure or malfunction in
the SD card.
SD card failure detection is
enabled. For details, see "5.19.1
Setting SD Card".
Video Tampering
The alarm is triggered when the
camera lens is covered or there
is defocus in video images.
Video tampering is enabled. For
details, see "5.4.2 Setting Video
Tampering".
External Alarm
The alarm is triggered when
there is external alarm input.
The device has alarm input port
and external alarm function is
enabled. For details, see "5.18
Setting Relay-in".
Illegal Access
The alarm is triggered when the
number of consecutive login
password error is up to the
allowable number.
Illegal access detection is enabled.
For details, see "5.19.3 Setting
Illegal Access".
Audio Detection
The alarm is triggered when
there is audio connection
problem.
Abnormal audio detection is
enabled. For details, see "5.6
Setting Audio Detection".
IVS
The alarm is triggered when
intelligent rule is triggered.
Enable IVS, crowd map, face
detection or people counting, and
other intelligent functions.
Scene Changing
The alarm is triggered when the
device monitoring scene
changes.
Scene changing detection is
enabled. For details, see "5.4.3
Setting Scene Changing".
Voltage Detection
The alarm is triggered when the
device detects abnormal
voltage input.
Voltage detection is enabled. For
details, see "5.19.4 Setting Voltage
Detection".
Security Exception
The alarm is triggered when the
device detects malicious attack.
Voltage detection is enabled. For
details, see "5.19.5 Setting
Security Exception".
5.1.2.2 Subscribing Alarm Information
You can subscribe alarm event. When a subscribed alarm event is triggered, the system records
detailed alarm information at the right side of the interface.
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