GeoVision LPR - Manual (Page 10)

Detection Mode
You can set up two detection modes in the GV-LPR System: Motion
Detection
mode and I/O Device mode. In the Motion Detection mode, the
GV-LPR System starts recognition when any motion is detected. It is normally
used on freeway recognition where the vehicle speed is high. In the I/O
Detection mode, the GV-LPR System starts recognition when the input device
is triggered. The input trigger will further trigger the output device. This mode is
normally used for a car park or an entrance.
● Motion Detection Mode: The camera is triggered to capture images by
motion detection. It is recommended when no frequent false motions, such
as from animals or people, occurred in the recognition area, or when the
false image capture is not an issue for you. The benefit of this mode is that
the license plate will surely be captured in the image.
● I/O Detection Mode: The camera is triggered to capture images by input
triggers, such as the IR sensor or the Magnetic Loop Detector. The benefits
of this mode are that the false motion detection can be avoided and the
CPU load is lower.