GeoVision : Video Management Solutions : How to : Trigger LPR Recognition Thru AS-200

1. How to Trigger LPR Recognition through
GV-AS200 Controller
Article ID: GV-03-08-08-06
Release Date: 2008/8/6
Applied to
GV-AS200 Controller
GV-LPR
Summary
GV-AS200 Controller can work in conjunction with GV-LPR to trigger the license plate
recognition and then the recognition result will be output to open a gate, turn on a light and
etc.
In this application, the GV-I/O USB Box installed on GV-LPR is connected to the Door A
outputs on the GV-AS200 module. When the card is presented to Door A, the signal of
Wiegand A will be transmitted to the Door A outputs and it will trigger GV-LPR to activate the
license plate recognition.
Requirements
• 2-door modules: AS200-2, AS200-2C, AS200-2E, AS200-2CE
• GV-LPR equipped with GV-I/O USB Box
GeoVision Inc. 1 Revision Date: 2008/8/6

2. To Connect a GV-I/O USB Box to GV-AS200 Controller
After connecting the card reader to Wiegand A, connect the GV-I/O USB Box that is installed
on GV-LPR to the GV-AS200 Controller.
1. Connect the Door + pin of Door A outputs to the DI 1 pin of GV-I/O USB Box. Then
connect the Urgent 1 pin of Door A outputs to the COMA pin of GV-I/O USB Box, as
illustrated below.
Please note don’t connect any power to the Door A outputs.
Urgent 1
Urgent 2
Door +
Door -
Power +
Alarm +
Alarm -
Power -
GeoVision Inc. 2 Revision Date: 2008/8/6

3. 2. Set the Door Relay Switch of Door A to NO.
3. It is required to allow the accessibility of Door A for entry and exit.
4. To set GV-LPR, follow these steps:
A. Set Detection Mode to I/O Detection.
GeoVision Inc. 3 Revision Date: 2008/8/6

4. B. Enable and configure Input 1.
C. Enable and configure the corresponding output, e.g. open a gate or turn on a
light.
GeoVision Inc. 4 Revision Date: 2008/8/6