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Performance Issues Caused by Disabling Metadata while Camera is Connected

Description

Disabling AI metadata within a camera while connected to the exacqVision Server application could lead to camera performance issues.

Product

Any IP Camera providing AI classification metadata.

While this was specifically seen and tested using Illustra devices it can be expected to occur with any camera providing metadata such as AI Object Classification.

Steps to Reproduce

  1. Connect a camera providing AI Object Classification or LPR metadata to the exacqVision Server.
  2. While the device is connected and streaming, enter the camera web browser interface.
  3. Within the camera settings disable the metadata stream. For Illustra Pro Gen4 and Flex Gen4 cameras, this is done by unchecking the ‘Enable AI Object Classification‘ box on the AI Object Classification tab.

Expected Results

Users probably expect no visible change and for the camera to cease streaming metadata.

Actual Results

The camera may become sluggish to respond to commands or provides reduced video performance.

The exacqVision Server logs show repeated entries stating:

Network error 103 in metadata stream

Error code 103 is defined by the exacqVision plugin. The value ‘103’ could change when upgrading or downgrading the exacqVision Server software. The value is calculated as the last libcurl error + 2.

Solution

  1. Navigate to the Add IP Cameras page in the exacqVision Client software.
  2. In the IP Camera List, locate the camera.
  3. Uncheck the box in the Enabled column.
  4. Wait a few seconds, then check the Enabled box to re-enable the connection.
  5. In some cases this may not resolve the issue and the camera will need to be rebooted.

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