Configuring equipment detection tool (PPE)

To set up the equipment detection tool (PPE), do the following:

1. If the camera supports multistreaming, select the stream for which detection is needed (1). 
   

2. Select one or several files for the classifying neural network (2). There must be a separate classifying neural network to recognize equipment on each body segment.
3. Select a processing resource for decoding video streams (3). When you select a GPU, a stand-alone graphics card takes priority (when decoding with NVidia NVDEC chips). If there's no appropriate GPU, the decoding will use the Intel Quick Sync Video technology. Otherwise, CPU resources will be used for decoding.
4. Set the minimum height and width of a person (4, 5) in the frame as a percentage of the frame height/width (0,15 = 15%). Objects which are smaller than the specified size will not be detected.

5. Select the processor for the neural network - CPU, one of GPUs, or Intel processors (6, see Hardware requirements for neural analytics operation).

   Attention!

   It may take several minutes to launch the algorithm on an NVIDIA GPU after you apply the settings.

   Attention!

   If you specify other processing resource than the CPU, this device will carry the most of computing load. However, the detection tool will consume CPU as well.

6. Select the segmenting neural network file (7).

   Attention!

   To access the neural network, contact technical support https://support.axxonsoft.com/.

7. Select the Mask checkbox to display body segments in the preview window (8).
   
8. Set the interval between the analyzed frames - Number of frames for analysis -  in milliseconds (9). The value should be within the range of 30 – 10,000.

9. Set the minimum number of frames containing people with no PPE for triggering the tool - Number of measurements in a row to trigger detection (10). The value should be within the range of 2 – 20.

   Attention!

   To apply detection in gateway mode (see Functions of the Equipment detection tool (PPE)), we recommend you to use the detection tool set to default delay (1000 ms) and 3 frames for output.

   To apply detection in continuous mode, set the delay to no more than 250 ms, and the number of frames to no less than 6.

10. By default, each equipment element's triggering occurs once during a continuous tracking of a human object.  You can set triggering to multiple by setting the One Event per Equipment Element parameter to No (10).

    Note

    Example. An individual not wearing a helmet appears in FoV, puts on a helmet, then puts it off. If the One Event per Equipment Element parameter is activated, you will have one alarm event, otherwise two.

11. In the preview window, you can set the detection zones with the help of anchor points much like privacy masks in Scene Analytics (see Setting General Zones for Scene Analytics). By default, the entire FoV is a detection zone.
12. Click Apply.

Equipment detection tool (PPE) is now configured. 

The equipment detection tool (PPE) triggers an alarm when a person not wearing required equipment (PPE) on specified body parts, or wearing inappropriate equipment, appears in FoV.