Remotely Trigger Warning Light on Dahua Cameras Using NX Witness

Completed

Prakash Kumar Karn

January 15, 2025 22:27

Hello NX  Community,

I am working on a project where I need to remotely trigger a warning light on Dahua cameras based on video analysis. Here’s the current setup:

1. Cameras send video feeds to an NX Witness server installed on a Raspberry Pi at each site.
2. We bookmark events in NX Witness and process the video on the cloud to decide if a warning light should be triggered.
3. The cameras are distributed nationwide, with two cameras and an NX Witness server per site.

The challenge I am facing is that Dahua’s API/SDK requires me to be on the same local network as the camera to trigger the warning light. I want to know if NX Witness can act as a middleman to send the API command to the cameras, allowing remote control via the NX Witness infrastructure instead of requiring direct local network access.

Is there a way to achieve this using NX Witness's features, such as events, rules, or any API/SDK functionality?

Any guidance, examples, or suggestions would be greatly appreciated!

Thank you in advance!

0

• 

  Norman

  • Network Optix team

  January 16, 2025 12:07

  Prakash Kumar Karn,

  I would assume that this is possible.

  In our VMS you have the option to send a Do HTTP(S) request, after an Event, for example an Analytics Event:

  

  Or you can use a Generic Event:

  

  For more details about triggering the Generic Event, you can check the Server API documentation for `POST` or `GET` `/api/createEvent`.

  Best regards.

  0

Please sign in to leave a comment.