Dahua N41C1P, User Manual, Page: 134 / 377

User's Manual
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Figure 5-84 Recording information
5.9 An
An detection is to process and analyze the image and extract the key information,
and then compare the key information with the preset detection rule. An alarm is triggered
when the detected behavior matches the detection rule.
The following figures are for reference only and might differ from the actual situation.
5.9.1 Overview
An detection falls into An by camera and An by recorder.
●
An by camera: Some cameras themselves support An detection. The
cameras perform An detection and send the detection results to the NVR for
display. When using An by camera, make sure to connect the Device to the
cameras that support the corresponding An detection functions.
●
An by recorder: The cameras send videos to NVR for detection, analysis and result
display.