Dahua IPC-HFW2431T-ZS-S2, Operation Manual

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When configuring Activation Analysis, draw the front of a classroom as the detection
area.
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When configuring Back Detection, draw the front of a classroom as the detection
area.
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When configuring Blackboard Writing Detection , draw the blackboard as the
detection area, and make sure that the detection is larger than the blackboard. Click
Draw Close-up Area draw the blackboard as the close-up area.
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For other devices without special requirements, use the default box of the system
(draw the full screen as the detection area).
Step 4 Set parameters.
Parameters for recording device and common device are different.
Table 5-22 Description of stereo analysis parameters
Parameter Description
Sensitivity
Set the alarm-triggered sensitivity. The higher the sensitivity is, the
easier the alarm will be triggered.
Alarm People Amount
When configuring People No. Error , set the alarm people amount
and alarm type. Alarm type includes Greater than, Equal to, Less
than, and Unequal to.
When the real-time number of people in the detection area is
greater than, equal to, less than, or unequal to Alarm People
Amount, the alarm is triggered.
Alarm Type
Duration
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For People Approaching Detection, when the time for people
approaching reaches the configured value, the alarm is
triggered.
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For Fall Detection, when the time of people falling down on the
ground reaches the configured value, the alarm is triggered.
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For People No. Error, when the number of people in the area
reaches the configured value of alarm people amount and alarm
type, and the time reaches the configured value, the alarm is
triggered.
Close-up Mode
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For people No. error function for a recording device, select
Tracking Mode as Close-up Mode. Then the camera traces the
teacher’s walking trajectory. You can view the tracking effect
through sub stream 1 of the live page. When the number of
people on the image is not 1, the full screen is displayed.
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When setting the stand detection function for a recording
device, select Fixed Mode as Close-up Mode. Then sub stream
1 enlarges and displays the image of standing people. When the
number of standing people is not 1, the full screen is displayed.
Before viewing the tracking or enlargement effect through sub
stream 1, ensure that sub stream 1 is enabled and the resolution of
the main stream and sub stream is 1080p. For configuration details
of the main and sub streams, see "4.5.2.1 Video".
Operation Manual
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