Configuring the Handrail grip detection

The handrail grip detection is used to detect safety violations when a person is walking on stairs and doesn’t hold a handrail with their hands.

To configure the handrail grip detection, do the following:

1. Go to the settings panel of the Handrail grip detection object that is created on the basis of the Person location tracker object.
   
   
2. Configure the handrail and step areas. For this, do the following:
   1. Click the Settings button (1). As a result, the Detection settings window opens.
      
      
   2. Click the Stop video button (1) to capture a frame of the video image (2).

   3. On the captured frame, set at least one handrail area (3) and at least one step area (4). To add an area, enable the corresponding Handrails area or Steps area button by clicking it. The active button is highlighted in blue (5).
      
      

      Note

      • For the handrail grip detection to work, you must create at least one handrail area and at least one step area. Otherwise, the detector doesn't work.
      • To delete an area, click the button to the right of the corresponding step or handrail area (6).
      • If a handrail in the frame is curved, you must specify it with several lines.
      • The accuracy of specifying handrail and step areas increases the accuracy of detection.
      • If a handrail is wide, then we recommend specifying a line in the middle of a handrail.
      • The object location in the ladder area is determined by the middle of the lower extremities (the middle between the ankles. If they aren’t visible, then the middle between the knees).
   4. Click the OK button (7) to save the changes and return to the detector settings panel.
3. Set the Generate alarm on camera checkbox (2) on the detector settings panel to generate an alarm on camera when the detector generates an event. By default, the checkbox is cleared.

4. Set the Show event on screen checkbox (3) to display an alarm border on the screen when the detector generates an event. You can specify the color of the alarm border in the next step. By default, the checkbox is cleared.

5. In the Alarm border color field (4), set the color of the alarm border using the color palette. The default color is red. You can open the Color palette by double-clicking the color field. After you select the frame color, click the OK button to save the settings.
   
   

6. In the Number of frames for decision making [1, 20] field (5), enter the required number of frames from 1 to 20, on which a person is walking on stairs and doesn’t hold a handrail to generate the corresponding event. The default value is 2.

7. Click the Apply button (6) to create the detector with the specified settings.

Configuring the Handrail grip detection is complete.