User Manual

Table Of Contents
License Plate Recognition
191
13
3. Select up to four cameras connected to the GV-System / GV-VMS to be the Recognition
Camera. Having more than 1 camera is useful when the width of the lane requires
multiple cameras. If multiple cameras recognize the same license plate at the same time,
the data will be recorded as 1 record.
Note: The resolution of the recognition camera needs to be at least D1. Each recognition
camera counts as 1 channel. If you set up 4 recognition cameras for a single LPR lane, you
will need a 4-ch LPR.
4. Select up to six Overview Cameras to capture the overall appearance of the vehicle. The
overview camera must be connected to the GV-System / GV-VMS. Under Delayed
snapshot, you can type the number of seconds to delay the capturing of snapshot after
the license plate is recognized.
5. Next to Drive Direction, select Incoming to designate an LPR lane as the entrance of
the parking lot or select Outgoing to set the lane as the exit of the parking lot.
6. Configure the Recognition Settings:
Recognition: Select to start license plate detection upon motion detection or I/O
detection. For I/O detection, PC LPR will only capture up to 1 license plate per I/O
trigger.
Matching Mode: To trigger the output device specified in Barrier Control only when
the detected license plate matches a registered license plate completely, select All
Characters Match. When Allow 1 mismatched character or Allow 2
mismatched characters is selected, 1 or 2 mismatched characters will be
tolerated, and the first and last characters must be unchanged. For example,
license plate ABC-123 will be considered matching with AZC-223 when Allow 2
mismatched characters is selected.
Motion Detection by I/O Trigger: When Always is selected, the PC LPR will
always start detecting license plate upon motion detection. If you select an Input,
the PC LPR will only conduct plate detection during the time period when the
selected input is being triggered. Multiple license plates can be captured during an
input trigger.
Sensitivity: Adjust the sensitivity level for motion detection.
Sensor: Select the input sensor for I/O detection.
Delay after trigger: Delay recognition for the number of milliseconds specified
after I/O trigger.