GeoVision GV-LPR2800-DL User manual

GV-LPR2800-DL Camera
Installation Guide
LPR2800-DL-IG-A
Thank you for purchasing GV-LPR2800-DL Camera. This guide is designed to inform users of
certain installation guidelines and tips before installing the camera. For advanced information
on how to use GV-LPR2800-DL, please refer to GV-LPR2800-DL Camera User’s Manual.

© 2020 GeoVision, Inc. All rights reserved.
Under the copyright laws, thismanual may not be copied, inwhole or inpart,
without the written consent of GeoVision.
Every effort has been made to ensure that the information in this manual is
accurate. GeoVision, Inc. makes no expressed or implied warranty of any kind
and assumes no responsibility for errors or omissions. No liability is assumed
for incidental or consequential damages arising from the use of the information
or products contained herein. Features and specifications are subject to
change without notice.
Note: No memory card slot or local storage function for Argentina.
GeoVision, Inc.
9F, No. 246, Sec. 1, Neihu Rd.,
Neihu District, Taipei, Taiwan
Tel: [phone]
Fax: [phone]
http://www.geovision.com.tw
Trademarks used in this manual: GeoVision, the GeoVision logo and GV
series products are trademarks of GeoVision, Inc. Windows and Windows XP
are registered trademarks of Microsoft Corporation.
November 2020

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1. Installation and Recognition Parameters....................................................................2
2. Overview & Wiring........................................................................................................5
2.1 Internal Wiring...........................................................................................................5
2.2 External Wiring..........................................................................................................6
2.3 Disconnecting Built-in IR Lights and Connecting to External IR Lights.......................7
3. Common Problems.......................................................................................................8

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Before installing GV-LPR Cameras, please read through this document carefully to ensure
the captured images are suitable for license plate recognition.
1. Installation and Recognition Parameters
View Angle
Vertical View Angle ≦30°: The vertical view angle of the camera shall be within 30
degrees to the ground.
Horizontal View Angle ≦30°: The horizontal view angle of the camera shall be within
30 degrees relative to the recognition target.
Camera Position
Installation Scenario Recommended
Height in m (ft)
Recognition
Distance in m (ft)
Maximum Speed
in km/h (mi/h)
Parking Entrance/Exit 1 ~ 2 (3.3 ~ 6.6) 4 ~ 30
(13.1 ~ 98.4) 30 (18)
1-Laned 5 ~ 30
(16.4 ~ 98.4) 100 (62)
Roadside 2-Laned ~ 2 (~ 6.6) 12 ~ 30
(39.4 ~ 98.4) 60 (37)
1-Laned 100 (62) Centered-
Top 2-Laned 4 ~ 6 (13.1 ~ 19.7) 9 ~ 30
(29.5 ~ 98.4) 60 (37)

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Parking Entrance/Exit: For installing at a parking entrance/exit, the camera shall be
mounted at a recommended height of 1 ~ 2 meters (3.6 ~ 6.6 ft) with an optimal
recognition distance of 4 ~ 30 meters (13.1 ~ 98.4 ft) while the speed of the target vehicle
cannot be more than 30 km/h (18 mi/h).
Roadside: For installing at the side of a road, the camera shall be mounted at a
recommended height of around 2 meters (6.6 ft), with an optimal recognition distance of 5
or 12 ~ 30 meters (16.4 or 39.4 ~ 98.4 ft), respectively for single-laned and dual-laned
roads, while the speed of the target vehicle cannot exceed 100 or 60 km/h (62 or 37 mi/h).

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Centered-Top: For installing at the top of the center of a road, the camera shall be
mounted at a recommended height of 4 ~ 6 meters (13.1 ~ 19.7 ft), with an optional
recognition distance of 9 ~ 30 meters (29.5 ~ 98.4 ft), while the speed of the target vehicle
cannot exceed 100 or 60 km/h (62 or 37 mi/h), respectively for single-laned and
dual-laned roads.
Note: The captured plate should be no less than 50 pixels in height. To check the height,
copy the license plate image, open and paste into Paint, and save it in BMP format.
Right-click the BMP file, select Properties and click the Summary tab to find the height
information.

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2. Overview & Wiring
2.1 Internal Wiring
2
4 1
3
6
7
8
910 11
5
12
No. Name Description
1. Built-in IR Light
Wiring Connects to the built-in IR lights.
2. External IR Wiring
Pin Optionally disconnect the wiring from the built-in IR lights to connect it to user-supplied external IR lights.
3. L/R IR Intensity Adjusts the maximum intensity of the left and right built-in IR
lights
4. Zoom Screw Adjusts the zoom of the camera.
5. Focus Screw Adjusts the focus of the camera.
6. SD Card Slot By default, a 32GB Micro SD card is already inserted and
formatted. When replacing the SD card, make sure the
newly-inserted SD card is formatted, see 3.6.2 Disk
Management in GV-LPR2800-DL User’s Manual.
7. Internal I/O Wiring Connects to the external I/O wiring of GV-LPR2800-DL.
8. Default Button Resets the camera to factory default settings.
9. RS-485 USB Connects to the external RS-485 wires.
10. Internal Audio-out Connects to the external audio-out wire.
11. Internal Audio-In Connects to the external audio-in wire.
12 Internal PoE /
Ethernet port Connects to the external Ethernet / PoE connector.

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IMPORTANT: By default, all the internal wiring, including Internal I/O, Fan USB, Internal
Audio-out, Audio-In and PoE / Ethernet port (No. 7, 9, 10, 11 & 12), are already connected
when supplied. Do not fiddle with them as it may hinder certain functions of the camera.
2.2 External Wiring
16
14
13
15
18
17
No. Name Description
13. External Audio-In Connects to a microphone.
14. External Audio-Out Connects to a speaker.
15. External Ethernet /
PoE Connector Connects the camera to a network and PoE power supply via Ethernet.
16. 2-Pin Terminal Block Optionally connect to a user-supplied power adapter.
17. Silica Gel Bag
placement Must replace the original silica gel bag and attach a
new one to one of the locations indicated every time
after opening the camera.
Bright Green DI 1
Purple DI 2
Gray DO 1
Brown DO 2 [External IR Light
Wiring]
White GND
Yellow GND
Orange RS-485 1+
Pink RS-485 1-
Blue RS-485 2+
18. I/O Wires
Green RS-485 2-

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2.3 Disconnecting Built-in IR Lights and Connecting to
External IR Lights
Follow the steps below to connect to any user-supplied external IR lights in place of the
camera’s built-in IR lights:
1. First, turn off the camera.
2. Disconnect Built-in IR Light Wiring (see No. 1, 2.1 Internal Wiring).
3. Then connect it to External IR Wiring Pin (see No. 2, 2.1 Internal Wiring), as illustrated
below.
4. Connect the user-supplied external IR lights to DO2 [External IR Light Wiring]
(see No. 18 —Brown wire, 2.3 External Wiring) of the camera.

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3. Common Problems
Low Image Contrast: Adjust the image contrast and/or improve lighting conditions of the
recognition site.
Large Roll, Yaw and Pitch Angles: Adjust the angle and direction of the camera.

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Overexposed Images: Reduce the illumination or adjust the angle/direction of the
camera.
Blurry Images: Adjust the focus or the shutter speed of the camera.
Hollow Characters: Reduce the illumination.
Plate Covered in Shadow: Avoid placing the camera where it is subjected to direct
sunlight, reflections or shadows, which may limit recognition performance.