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Note
titleAttention!

To ensure the correct CARMEN-Auto module operation, do the following:

  1. Make sure that "KB3033929" security update and Hotfix are installed.
  2. If Carmen GX drivers are installed, then they should be uninstalled from Windows. 
  3. Make sure that there is not a single folder with any drivers left at C:\Windows\System32\DRVSTORE\ (if there are folders, they should be removed).
  4. Restart the computer.
  5. Download the Carmen Freeflow 7.3.1 distribution kit from the AxxonSoft website and install it. If an older version was installed earlier, then it should be uninstalled before installing a newer version.
  6. Download the distribution kit with the license plate recognition algorithm from the AxxonSoft website and install it via the Engine Manager utility. The procedure for installing the recognizer using the Engine Manager utility is described in the engine_install_windows.txt file located in the folder with the corresponding recognizer.

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  1. The less resolution the higher quality of recognition. It ie recommended to use the following resolution: 320x240 - 800x600px. It is highly recommended not to use resolution more than 1.2 Mpx.
  2. It is recommended to specify the search area. It results in decreasing of factual resolution which go to the entry on recognizer. The less area the less resolution and consequently the higher quality of recognizing.
  3. It is recommended to use recognition by trigger command (motion detection, the Parking mode) instead of permanent recognition. If a lot of recognizers are to be configured on the one server, use the Parking mode. Detailed information about Parking mode is presented in the Scripts used in the Auto Axxon PSIM software package section.

  4. The less recognizers are created on the one computer the higher speed of video processing because the speed of video processing is shares between all created recognizers. Low speed of processing results in plate recognition delay and bad quality of recognition.
    Here's approximate data of speed of video processing:
    For the Common characters template:

    ResolutionFPS
    320x24019
    480x36018
    640x48013
    1024x7688
    1280x9608

    For other templates:

    ResolutionFPS
    320x24012
    480x3609
    640x4807
    1024x7685
    1280x9604


    Info
    titleNote.

    These data can differ decreasingly of frequency of processed frames at different lighting conditions, on different processors etc.