Dahua HCVR21**HS-S2 Series, User Manual

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HDCVI Series DVR User
’s Manual
190
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Alarm face number: Once the detected human face number reaches the threshold you set here,
system can generate an alarm.
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Human face RO (region of interest): Check the box, system can highlight the human face region.
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Enable: Check the box here to enable face detect function.
For detailed setup information, please chapter 4.11.3.2.1.
Figure 4-122
4.11.3.4 Alarm
Before operation, please make sure you have properly connected alarm devices such as buzz er.
In the main menu, from Setting->Event->Alarm, you can see alarm setup interface.
For analog channel, the interface is shown as in Figure 4-123 and Figure 4-124
For HDCVI channel, there are three alarm types. See Figure 4-123 to Figure 2-14 .
For digital channel, there are four alarm types. See Figure 4-123 to Figure 4-127.
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Local alarm: The alarm signal system detects from the alarm input port.

Network alarm: It is the alarm signal from the network.

HDCVI: System can get the camera temperature, smoke, external alarm and set corresponding
alarm activation operation.

IPC external alarm: It is the on-off alarm signal from the front-end device and can activate the local
HDVR.

IPC offline alarm: Once you select this item, system can generate an alarm when the front-end IPC
disconnects with the local HDVR. The alarm can activate record, PTZ, snap and etc. The alarm can
last until the IPC and the HDVR connection resumes.
Important