Dahua Technology IPC-HDW5842T-ZE, Руководство по эксплуатации

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Operation Manual
139
Figure 5-23 Area
2) Select a color and set the region name. Select an effective area for Motion Detection in
the image and set Sensitivity and Threshold .
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Select a color on to set different detection parameters
for each region.
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Sensitivity : Sensitive degree of outside changes. It is easier to trigger the alarm
with higher sensitivity.
●
Threshold
: Effective area threshold for Motion Detection. The smaller the threshold
is, the easier the alarm is triggered.
●
The whole video image is the effective area for Motion Detection by default.
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The red line in the waveform indicates that the Motion Detection is triggered, and
the green one indicates that there is no motion detection. Adjust sensitivity and
threshold according to the waveform.
3) Click Save .
Step 4 Set arming periods and alarm linkage action. For details, see "5.1.1 Alarm Linkage".
Anti-dither: After the
Anti-dither time is set, the system only records one motion detection
event in the period.
Step 5 Click Save .
5.4.2 Setting Video Tampering
The system performs alarm linkage when the lens is covered or video output is mono-color screen
caused by light and other reasons.
Step 1
Select Setting > Event > Video Detection > Video Tamper .
Step 2 Select the event type.
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Video Tampering : When the percentage of the tampered image and the duration
exceed the configured values, an alarm will be triggered.
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Defocus Detection : When the image is blurred, an alarm will be triggered. This