Run multiple instances of DeepSight Toolkit on Windows

When to use this

Use this procedure when you need to run multiple cameras on a single Windows machine with DeepSight Toolkit. Each camera requires its own instance of the Toolkit with a separate configuration directory.

Steps

1. Open the DeepSight Toolkit installation directory on your Windows machine.

2. Locate the start.bat file in the installation directory.

3. Create a configuration directory for each camera instance you want to run (for example, C:\config1 and C:\config2).

4. Open start.bat in a text editor.

5. Add a line for each camera instance using this format:

   START DeepSight-Toolkit.exe --capture <camera_index> --camera-name <name> --deepsight-application <your_app_key> --config-path <config_directory>

6. Replace the placeholders:

   • <camera_index>: Use 0 for the first camera, 1 for the second, and so on
   • <name>: Choose a descriptive name for the camera (for example, cam_01, cam_02)
   • <your_app_key>: Paste your Displai application key
   • <config_directory>: Enter the full path to the configuration directory you created (for example, C:\config1)

7. Save the modified start.bat file.

8. Run start.bat to launch all instances.

Verify

Each instance opens in its own window and connects to its assigned camera. Check that:

• Each window shows a unique camera name you specified
• Video feeds display from the correct cameras
• No error messages appear in the command windows

If it doesn’t work

Cameras don’t start or show errors about device access:

• Verify each camera is connected and recognized by Windows
• Check that no other application is using the cameras
• Confirm each --capture index matches an available camera
• Ensure camera indices are unique across all instances

Configuration conflicts or instances fail to launch:

• Verify each --config-path points to a different directory
• Check that all configuration directories exist before launching
• Ensure your application key is valid and not expired

Need to identify which camera corresponds to which index:

• Escalate to support for help mapping physical cameras to system indices

Related articles

• DeepSight Toolkit command-line arguments for Windows Look up the command-line arguments for launching DeepSight Toolkit on Windows, picking a video source, and running it at startup.
• DeepSight Toolkit resources and getting started guide Follow the five-step DeepSight Toolkit trial flow, from download and installation to sample video testing and CMS integration.
• DeepSight Toolkit frequently asked questions Check whether your system can run DeepSight Toolkit: 32-bit builds aren’t supported, so you need a 64-bit system.

• Contact Displai support if you need assistance with camera hardware setup or index identification