Searching For Smart Sound Detection; Ppe Detection - Dahua NVR21-4KS3 Series User Manual

Step 2 Select channel, and then enable Smart Sound.
Step 3 Select sound type, sensitivity, and threshold as needed.
Step 4 Click Setting next to Schedule to configure the arming period.
The system triggers corresponding alarm actions only during the arming period.
Step 5 Configure alarm linkage. For details, see Table 5-50.
Click Apply.
Step 6

5.9.20.2 Searching for Smart Sound Detection

Procedure
Select AI > AI Search > Smart Sound Detection.
Step 1
Select channel, sound type, and period, and then click Search.
Step 2
● Click
● Click Backup to back up the video.

5.9.21 PPE Detection

Detects whether the person is wearing the workwear, hat, gloves, shoe covers and the like.
Prerequisites
The front-end camera has AI function for PPE detection.
Procedure
Step 1 Select AI > Parameters > PPE Detection.
Step 2 Select channel, click Add, and then add a PPE detection rule.
Step 3 Click Enable.
Figure 5-197 Configuring smart sound detection
to play back the video.
308
User's Manual