Hanwha Techwin PNV-A9081RLP User manual

LPRCameras
QUICK REFERENCE GUIDE
1PRE-INSTALLATION
CONFIGURING
YOUR CAMERA
2
3
4
INSTALLING AND
POSITIONING CAMERA
Plate HT-777-WS
Model HT230C
Type SUV
Brand HTV
Color RED
INSTALLATION
WORKSHEET

CONTENTS
1PRE-INSTALLATION
1.1 Choosing aLocation
CONFIGURING YOUR CAMERA
1. Field of View
2. Configure Initial Camera Settings
3. Simple Focus on Plate Read Area
4. To measure pixel width of license/number plate
5. Observing Proper Installation
6. Examples of Improper Install
2
3
4
INSTALLING AND
POSITIONING CAMERA
1. Camera Installation
2. Adjust for Plate “Rotation”Angle
3. LPR /MMCR Specification
INSTALLATION WORKSHEET

1PRE-INSTALLATION
1.1 Choosing aLocation
The LPR (License Plate Recognition), also known as ANPR (Automatic Number Plate Recognition) Technology running on
this camera will provide you with the best results when following the recommended installation constraints below.
Please use the worksheet on page 24 to record your site survey or installation measurements.
30º Maximum Vertical Angle
Minimum Forward Distance
Maximum Forward Distance
30º
26 ft
52 ft
14 ft
Recommended
30 degrees Maximum Vertical Angle @ up to 25MPH
25 degrees Maximum Vertical Angle @ up to 45MPH
15 degrees Maximum Vertical Angle @ up to 75MPH*
Maximum Forward Distance depends on lens zoom,
however should not exceed 52 ft considering
effective IR range (for PNO and PNV models).
*Please consider using PNB model with external IR for
ranges above 52 ft or up to 75MPH.
Fig. 1
Camera shown from side
Fig. 2
Example of installation at a height of 14ft
3 | LPR Camera Quick Reference Guide

1.1 (Continued)
FORWARD DISTANCE TABLES
The tables below are recommended installation
measurements based on camera mounting lane offset
and maximum vehicle speed of up to 25MPH / 45MPH.
[PNO-A9081RLP /PNV-A9081RLP]
*Day and night conditions with built-in IR
*PNB-A9001LP parameters depends on lens &external IR.
4 | LPR Camera Quick Reference Guide

1.1 (Continued)
All license platesthat are meeting the pixel criteria as below will be
recognized in the selected area.
•130-250 pixels for US / Canada / Mexico plates
Recommended
30 degrees Maximum Horizontal Angle for recognition up to 25MPH.
25 degrees Maximum Horizontal Angle for recognition up to 45MPH.
15 degrees Maximum Horizontal Angle for recognition up to 75MPH*
(*PNB model only)
Recommended
30 degrees Maximum Horizontal Angle
Fig. 3
Camera shown from top
30ºMaximum Horizontal Angle
Minimum Forward Distance
Maximum Forward Distance
Fig. 4
The camera runs in 4K mode to cover up to 2
road lanes. In certain situations, FullHD mode
can be used to increase the plate size on screen.
MMCR accuracy will decrease in FullHD mode.
Please refer to KB article for more information.
Normally, setting recognition zone (see orange frame
below) in lower half of camera view is sufficient and
favors app performance.
Best results are achieved when single row number
plate width has fit the criteria. Greater width may affect
performance.
5 | LPR Camera Quick Reference Guide

2INSTALLING AND POSITIONING CAMERA
2.1 Camera Installation
NOTE: Refer to PNO-A9081RLP, PNV-A9081RLP or PNB-A9001LP installation guide and follow the installation instructions.
2.2 Adjust for Plate“Rotation”Angle
For best results, check the angle of your plate compared to the horizontal angle and rotate
the camera to less than 5° as shown below (Recommended Angle(s).
Recommended Angle(s)
>5°
5°max
6 | LPR Camera Quick Reference Guide

2.3 LPR /MMCR Specification
Solution Community Traffic Observation /Parking Application CityTraffic Observation Secondary Roads
Speed Description Moderate Speed Low speed Regular Speed Moderate Speed
Lane Coverage 2 lanes @Color (18ft Wide)
1 lane @Black & White with built-in IR
2 lanes @Color (24ft Wide)
1 lane @Black & White with built-in IR
Up to 2 lanes (18ft Wide) Up to 2 lanes (18ft Wide)
Speed limit Up to 45mph (70kph)Up to 25mph (40mph)Up to 65mph (100mph)Up to 75mph (140kph)
Min. Forward Distance 38ft (12m)10m (33ft) 52ft (16m)90ft (27m)
Max. Forward Distance Color: 52ft (15.8m)
Black & White w/ IR: 45ft (13.7m)
Color: 52ft (15.8m)
Black & White w/ IR: 45ft (13.7m)
Color: 120ft (36.5m)
Black & White: 120ft with external IR
Color: 120ft (36.5m)
Black & White: 120ft with external IR
Max. Horizontal Angle 25°30°25°15°
Max. Vertical Angle 25°30°25°15°
Horizontal Offset Up to 18ft (5.4m)Up to 24ft (7m)Up to 24ft (7m)Up to 12ft (3.6m)
Camera Height Up to 18ft (5.4m)Up to 24ft (7m)Up to 24ft (7m)Up to 12ft (3.6m)
Vehicle Recognition
70+Makes
600+ models
10 colors
70+ Makes
600+ models
10 colors
70+ Makes
600+ models
10 colors
70+ Makes
600+ models
10 colors
LPR CAMERAS PNV-A9081RLP PNO-A9081RLP PNB-VA9001LP-50MM*
7 | LPR Camera Quick Reference Guide
+
*Model number pending
**Specifications may vary based on installationconditions

3CONFIGURING YOUR CAMERA
NOTE:There is no default user name and password to access the camera.
1) You must set the admin password when you first access the camera .
2)Make sure to set correct date and time for the camera before going in to any additional setting to ensure accurate time stamps for
plate reads. It is recommended to sync the camera to a Network Time Protocol (NTP) server.
1. 1Field of View
The below steps you will perform in the Wisenet camera configuration webpage
1Configure camera so left and right are correct, not mirrored.
2Set camera zoom to capture license plate
3Adjust camera view angle so plate passes through the middle of the image.
2. 2Configure Initial Camera Settings
For proper operations, please, check and set properly:
•Camera Date Time(+page9)
•IP settings (+page 10)
•SD card storage (+page 13)
•Camera exposure and focus (+pages 14~15)
SSDR,WDR,DIS,Defog,AGCandanti-flickeringfeaturesaregoodforhumaneyebutaffectcomputer
vision performance and therefore setting these to the least possible setting or turning off is strongly advised.
8 | LPR Camera Quick Reference Guide

3.2 (Continued)
[Date and Time]
Choose ATimezone and set Use daylight
saving time as appropriate.
Set Bdate and time or opt to synchronize
with your PC or NTP server.
NOTE: Wisenet Road AI app relies on these
settings and if these are not set properly you
may not see events in Wisenet Road AI app and
events delivered to the outer systems may not
contain proper timestamps.
Date & Time
A
B
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3.2 (Continued)
[IP, DNS, Ports]
Proper IP, DNS and ports setting are
important for:
•NVR /VMS or other integrations
•outside LAN access if required
NOTE: Reboot the camera whenever the IP
address gets changed.
IP &Port
10 |LPR Camera Quick Reference Guide

3.2 (Continued)
[Go to App]
Please go to App in camera open platform section.
To run the Wisenet RoadAI app, select the
Open platform menu and click the A
Go App button in the Application name
field.
Open platform
A
11 |LPR Camera Quick Reference Guide

3.2 (Continued)
[Go to App] (Continued)
Go to Wisenet Road AI application tab and select“Settings”from the top menu.
Select the Acorrect Region from the
selection. The default setting is “Europe”.
In US/Canada/Mexico regions, you must
select the correct region/country that
matches your usage.
Click B to save the settings.
In the same “Settings”section, you can also
choose to have the CRecommend camera
setting applied.
NOTE: You must go to the web menu of the
camera, Open Platform Area to
DStop and Re-start the application for
the Region setting change to be effective.
A
B
C
D
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3.2 (Continued)
[microSD card]
Your camera is supplied with micro SD card.
SD-card is managed by the Wisenet RoadAI
application and no user interaction needed.
Please check the B SD-Card status in the A
ABOUT section of the Wisenet RoadAI app.
Change the micro SD card if you see Error
status
A
B
13 |LPR Camera Quick Reference Guide

3.2 (Continued)
[Exposure adjustments]
Use the recommended default settings from the Wisenet Road AI application in most cases. If you need to
manually adjust here are the most common settings that affect the LPR performance.The recommended settings
can also be applied from within the RoadAI app. A. Sensor:30 fps
B. SSDR:Off
C. White balance:ATW
D. Backlight:Off
(try other backlight options only if camera gets
blinded by headlights in the night)
E. Exposure:
•Minimum shutter speed :1/300
•Maximum shutter speed :1/700
•Preferred shutter speed :1/500
•Anti flicker :Off
•SSNR : Default
•AGC :Low
F. Day/Night:
•Mode: Auto
G. IR:manual
H. Other settings: default
Camera setup
A
B C D E F
G
H
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AGC off, BW, IR on
AGC low, Color, IR on
Automatic Gain Control can improve overall scene visibility
notably. However, even at low setting AGC produces noise that
can ruin license plate images, while lighter areas tend to become
over-exposed. See illustrations to the left.
Start with turning AGC off. See the illustration to the left. Set AGC
to low to improve plates visibility unless only other methods are
helpful.
Adjust zoom so that real plate pixel width is at least 130px.
Consider adjusting recognition zone so it is closer to the center
of the frame to avoid IR vignette effect.
NOTE: Do not use WDR as it decrease the shutter speed and may blur
the vehicles.
3.2 (Continued)
[Exposure adjustments-Automatic Gain Control]
AGC low, BW, IR on
15 |LPR Camera Quick Reference Guide

NOTE:
The PNB-A9001LP shoud be focused according to the
manual varifocal lens controls. Simple focus can be
activated for fine tuning.
The area indicated is not stored. If you need to perform a
new Simple Focus, please draw a new area on-screen.
Set the focus to have plates in the proper pixel size.
•130 –250 pixels for US plates without stacked
symbols (small ones)
3.3 Simple Focus on Plate Read Area
A unique feature of this camera allows you to select the plate area and hit a button to perform a “Simple Focus” on
this plate area.
1From the Video &Audio menu, select Focus setup.
2Click and drag to draw an area of focus where the
license plate is displayed.
3Click the Simple Focus button to initiate a focus
operation on the user-specified area.
Focus setup
1
2
16 |LPR Camera Quick Reference Guide

3.4 To measure pixel width of license/number plate
1 Observe vehicles passing across the scene. Use the snapshot or pixel counter tools in the web viewer
Live page as needed.
1
17 |LPR Camera Quick Reference Guide

3.4(Continued)
3. Use Plate Grid tool in the Settings tab of WisenetRoadAI to display a license plate minimum/maximum overlay
as well as a protractor to measure rotation. The Freeze Frame will stop the camera movement for inspection of
the image.
4. The Wizard will show a color-coded overlay of plate reads indicating if the plates are sized correctly. 100 cars
must pass by for the results to be displayed. Adjust the camera field of view and/or settings accordingly.
5. You can apply the recommended camera image adjustment settings with the Recommended Camera
Settings button.
6. Use Zone Management to draw up to 2 regions that plates will be read in, to prevent false reads from signs, etc.
The default zone does not cover the entire Field of View. It is recommended to check the zone and modify as
needed.
3
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2
3
4

3.5 Observing PROPER Installation
SCENE REQUIREMENTS:
•good proportion to the frame width
•well lit
•sufficient contrast
•acceptable tilt angle
•good proportion to the frame width
•perfect IR power
•sufficient contrast
•critical yet acceptable tilt angle
Fig. 1
Daytime
Fig. 2
Night time
HAN0123
>130px
<30˚<30˚
<5˚
<5˚
License plate is more
than 130px in width
19 |LPR Camera Quick Reference Guide
License plate is
readable
Vertical angle is less
than 30°
Tilt angle is less
than 5°
Horizontal angle
is less than 30°

3.5 (Continued)
POSSIBLE IR RESTRICTIONS:
The license/number plate is quite close to the frame boundary.
You may notice a vignette effect.
The license/number plate is closer to the centre of the frame.
The plate is lit much better.
Pay special attention to IR vignette effect (see illustration on the left) when setting up recognition zone. The closer to the center
the more even lighting is.
Also in this particular case real pixel width of the license/number plate is critically small.
The Automatic Gain Control effect will be illustrated in camera exposure settings section.
20 |LPR Camera Quick Reference Guide