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Operation modes of the video capture cards’ ADC

ADC operation mode is defined determined by the number of processed and digitized video signals. There are two modes:

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To disable the Camera objects that correspond to the idle video channels in Axxon PSIM, do the following:

  1. Define Determine the numbers of the idle video capture channels (taking into account BNC plug numbering).
  2. Go to the Hardware tab in the System settings window.
  3. In the object tree on the Hardware tab, select the Camera object created before, with the same channel number as the BNC plug (idle channel). The settings panel for the selected object is displayed on the right of the Hardware tab.
  4. Make sure that video signal isn't displayed in the video surveillance window (1).

    The display of the video signal in the video field indicates that the Camera object matches another video channel.
  5. Specify the number of the video channel in the Channel number drop-down list on the Basic settings tab (2). Match the Camera object with the channel number, which corresponds to the BNC plug number and the Camera object number, or scan for a Camera object matched with the required channel number.
  6. Set the Disable checkbox (3).
  7. Click the Apply button.

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Actual frame rate

We recommend defining determining the actual frame rate of video signal digitization and then setting up the frame rate for video signals from video surveillance system cameras.

You must perform frame rate setup if frame rates of video signals from one or more cameras don't meet the requirements.

Actual frame rates are defined determined for each camera individually.

To define specify the actual frame rate for a selected camera, do the following:

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Note that this information window displays initial data about the video stream from the camera or from the archive transmitted to the Video surveillance monitor. The actual displayed frame rate of the video stream can be different, see Displaying Display of information about a video stream on top of a video.

Info
titleNote
For the Stretch video cards of standard compression (h264), the frame rate that is displayed on the Monitor in Axxon PSIM can be less than the frame rate that is indicated by the video card manufacturer. This is due to the fact that while displaying the frame rate of video signal digitization on the Monitor in Axxon PSIM blank frames that are distributed by the video card aren't taken into account. Blank frames don't contain the information about the image and are created by the video capture card when there are no changes in the video stream and a new video frame is the same as the previous one (for example, there is no motion in the frame).

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