Stitch the Master Device and Node Devices

This section describes how to stitch the master device and node devices, which includes the following procedures:
  1. Set Working Mode to Master.
  2. Select a node device.
  3. Bind the node device to the master device.

After all stitching configurations are completed, users can draw detection lines and even U-turn areas on the stitched preview using the same method as with standalone devices. Multi-Device Frame and Master Device Frame are displayed on the Dashboard page to view the stitched multi-device preview and the master device preview respectively.

Set Working Mode to Master

  1. Log into the web GUI of the master device, and click Rule from the left navigation tree.
  2. In the Working Mode area on the right, click Master. The Tips information box is displayed.

  3. Click to wait for the device to reboot.

Select Bind Node Devices

  1. After the reboot is completed, click Rule from the left navigation tree.
  2. In the Multi-Device List area, click Bind Node1. The Select a Node Device dialog box is displayed.

  3. Select a node device to be added.
    • To select a node device manually:
      1. Click Manual.
      2. Enter an IP address, HTTP port, user name or password in the corresponding text box.
      3. Click . The Bind the Node Device page is displayed.
    • To select a node device automatically:
      1. Click Auto. Then the device automatically uses the multicast protocol to discover the unbound node devices within the same local network. The discovered devices are listed in Node Devices List.
      2. Select the node device to be added and click . The Confirm Authorization dialog box is displayed.

      3. Enter the login password of the node device and click . The Bind the Node Device page is displayed.

Bind Node Devices to Master Device

  1. Select Frame Overlapping or Frame Non-overlapping stitching connection as needed.
    Stitch Method Description Illustration
    Frame Non-overlapping Device coverage does not require overlapping areas; only the areas of interest need to be covered.

    It is only available for firmware version 1.0.5 or later.

    		 Illustration for frame non-overlapping
    Frame Overlapping Device coverage requires overlapping areas to ensure complete tracking of targets. Illustration for frame overlapping
    • If Frame Overlapping is selected, follow the steps below:
      1. In the Installation Height area, enter the installation height of the node device or click Detect to automatically measure the installation height.

      2. Click IP addresses on the right to access the previews of the stitched devices and select the device sharing overlapping coverage areas with this node device.

      3. On both device previews, define the overlapping coverage areas by mark four calibration points to form a quadrilateral. Then the system automatically performs image stitching based on these points.
        Tip: The overlapping area should be positioned in locations with minimal target traffic. It is recommended to use objects such as tiles, tables, or tape to mark the stitching points on the ground in the overlapping area.


      4. (Optional) To modify the calibration points, click to delete the corresponding point and mark the point again.
      5. Click to save the configuration. The node device is listed in the Multi-Device List. The following figure shows the effect after the two devices are stitched.
    • If Frame Non-overlapping is selected, follow the steps below:
      1. In the Installation Height area, enter the installation height of the node device or click Detect to automatically measure the installation height. Configure the image rotation angle relative to the master device.

      2. Click to save the configuration. The node device is listed in the Multi-Device List. The following figure shows the effect after the two devices are stitched.
      3. (Optional) Users can optionally adjust the position of the node device through the preview screen.

  2. To add more devices, follow steps 1 to 5 to stitch them sequentially. A small map in the upper left part of the preview shows the positions of the stitched devices.

  3. (Optional) To disconnect a node device, click in the corresponding Operation area.