VaxALPR On Camara Developerrsquos guide

Version 20

VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 1 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

Axis Camera with VaxALPR On Camera

software Developerrsquos guide

Version 20

VAXTOR EUROPE Ronda de Poniente 15 1st 28760 Tres Cantos Spain

E-mail infoeuvaxtorcom

VAXTOR USA 23201 Lake Center Drv Suite 211 Lake Forest CA 92630-6821 USA

E-mail infousvaxtorcom

VAXTOR ASIA 18 Howard Road 07-011 1

Novelty Bizcentre 369585 Singapore E-mail infoasiavaxtorcom

VaxALPR On Camara Developerrsquos guide

Version 20

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INDEX

1 Introduction 3

2 VaxALPR On Camera Reporting Options 3

21 Send VAPIX ONVIF events 6

211 Event declaration 7

22 Insert Overlay 10

23 Write results to SD 15

24 Write results to Network share 20

25 Send HTTP or HTTPS POST XML events 24

251 Well-formed XML 26

252 Configure Milestone 27

26 Send HTTP or HTTPS POST JSON events 33

27 Send proprietary events 34

271 Proprietary notification data package 36

28 TCP Connector 38

29 Dorlet integration 40

3 VaxALPR On Camera HTTP API 41

31 List management 41

32 Configuration file 42

33 Database 44

34 Images 45

VaxALPR On Camara Developerrsquos guide

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1 Introduction

This guide has been designed for those responsible of obtaining or integrating the results

provided by VaxALPR On Camera software with other third-party software

The VaxALPR On Camera software is a real-time solution for Automatic License Plate

Recognition (ALPR) that runs entirely within the Axis camera

2 VaxALPR On Camera Reporting Options

Once the Axis camera is installed and setup and the basic configuration of the VaxALPR On

Camera software is done we need to configure the reporting options of the VaxALPR On

Camera software

To configure the reporting options access the Axis camerarsquos setup and click on the

Applications menu Then click on the VaxALPR On Camera gt Settings option Finally click on

the Main page link This opens a window with the VaxALPR Configuration Screen

Axis camera setup Applications gt VaxALPR On Camera gt Settings

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VaxALPR Configuration screen

On the menu click ldquoReportingrdquo to open the reporting configuration window

VaxALPR Reporting configuration screen

VaxALPR On Camera 20 has 10 different ways to communicate the results to third parties

- VAPIX ONVIF events

- Axis Overlay in the camera

- Write LPR result to SD card or Network Share

- HTTP or HTTPS POST messages in XML format

- HTTP or HTTPS POST messages in JSON format

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- Vaxtor proprietary protocol

- Simple TCP connector

- Integration with Dorlet AS3 Controller

- Integration with Axis A1001 Network Door Controller Detailed in the document

ldquoVaxALPR On Camera Integration EN_2_0pdfrdquo available at httpwwwvaxtoreswp-

contentDownloadsVaxALPR_On_Camera_Integration_EN_2_0pdf

- Integration with Axis Camera Station Detailed in the document ldquoVaxALPR On Camera

Integration EN_2_0pdfrdquo available at httpwwwvaxtoreswp-

contentDownloadsVaxALPR_On_Camera_Integration_EN_2_0pdf

IMPORTANT Since version 20 there is a new option on the Settings menu (Check VaxALPR On

Camera Configuration EN_3_0pdf) to enable a local database in the camera This option

requires a SD mounted in the system It is not recommended to unmount or mount the SD

card with the software running

When the database is active VaxALPR can retry the notifications in case that one of the

reporting options fails The retried events will have as timestamp the original moment when

the plate was captured To enable or disable this option check the configuration manual

IMPORTANT Since version 20 it is possible to simulate a read This simulation can be used to

test that the reporting options are well configured

To simulate a read

1 Open the reporting option menu

2 At the bottom of the page insert a plate number on the ldquoPlate to testrdquo textbox

3 Click ldquoTest reportingrdquo

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Test reporting option

4 A confirmation message will be displayed when the simulation is sent

Confirmation message

21 Send VAPIX ONVIF events

IMPORTANT This reporting option has been modified since version 20 and above

Choose this reporting option if you want VaxALPR On Camera to send a VAPIX ONVIF event

on each plate recognition VaxALPR On Camera can send four different types of events

- ALPR This event is sent each time a license plate is recognized

- Blacklist This event is sent each time a license plate on the blacklist is recognized

- Whitelist This event is sent each time a license plate on the whitelist is recognized

- NoList This event is sent each time a license plate is recognized and the plate is not in

the whitelist or in the blacklist

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To activate this option do the following

1 Click on the Vapix header to expand the Vapix integration menu

2 Select the Active checkbox

3 Write the Camera Id (unique identifier for each camera)

4 Click on the Submit reporting button to store the information in the camera

NOTE The Submit button is located at the bottom part of the VaxALPR Reporting

Configuration screen

VaxALPR Configuration Reporting options gt Send VAPIX ONIF events

The format of the message sent with each VAPIX ONVIF event are detailed below All the

events have the same fields only the topic2 item will change (ALPRv2 Blacklistv2 Whitelistv2

or No_listv2)

211 Event declaration

lt-- Vaxtor ALPR Event --gt

ltDeclarationgt

ltItemgt

ltKey NameSpace=tnsaxisgttopic0ltKeygt

ltStringgtCameraApplicationPlatformltStringgt

ltItemgt

ltItemgt

ltKey NameSpace=tnsaxisgttopic1ltKeygt

ltStringgtAnalysisltStringgt

ltItemgt

ltItemgt

ltmdashValid values are ALPRv2Blacklistv2Whitelistv2 or NoListv2 --gt

ltKey NameSpace=tnsaxisgttopic2ltKeygt

ltStringgtALPRv2ltStringgt

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ltItemgt

ltItemgt

ltKeygtidltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- The plate read --gt

ltKeygtplateltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Video timestamp --gt

ltKeygttimestampltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Country State --gt

ltKeygtcountryltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Global confidence --gt

ltKeygtconfidenceltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Characters confidence --gt

ltKeygtcharconfidenceltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

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ltItemgt

lt-- Average Char Height --gt

ltKeygtcharheightltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Process Time --gt

ltKeygtprocesstimeltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Plate location --gt

ltKeygtleftltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Plate location --gt

ltKeygttopltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Plate location --gt

ltKeygtrightltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt-- Plate location --gt

ltKeygtbottomltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

VaxALPR On Camara Developerrsquos guide

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ltItemgt

ltmdashRegion of Interest ID --gt

ltKeygtroiltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

lt- Description (Only for blacklist and whitelist events) --gt

ltKeygtdescriptionltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltItemgt

ltmdashDirection of movement --gt

ltKeygtdirectionltKeygt

ltStringgt

ltTaggtonvif-dataltTaggt

ltItemgt

ltDeclarationgt

22 Insert Overlay

VaxALPR On Camera can modify the dynamic overlay shown in the Axis camera on each plate

recognition

To configure this option do the following

1 Access the Axis camerarsquos setup and click on the Applications menu Then click on the

VaxALPR On Camera gt Settings option Finally click on the Main page link This opens a

window with the VaxALPR Configuration Screen

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Axis camera setup Applications gt VaxALPR On Camera gt Settings

VaxALPR Configuration screen

1 Click over Reporting menu option

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VaxALPR Rerporting screen

2 Click over Overplay panel header to show details

3 Inside Overlay panel select Active checkbox to activate Overlay reporting

4 Write the Message

NOTE You can use dynamic text replacement to match the current plate information

$date$ Date in ISO8601 format

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$plate$ License plate number

$country$ Country of the vehicle

$blacklist$ Description of the plate on the blacklist

$whitelist$ Description of the plate on the whitelist

$ifblacklist$ $ifblacklist$ If the plate is on the blacklist the text in the if clause

will be displayed

$ifwhitelist$ $ifwhitelist$ If the plate is on the whitelist the text in the if

clause will be displayed

$ifnolist$$ifnolist$ If the plate in not on a list the test in the if clause will be

displayed

$confidence$ Global confidence of the plate (0 ndash 100)

$processingtime$ Milliseconds the OCR takes to process the reading

$left$$top$$right$$bottom$ Pixel coordinates of the top left corner and the

bottom right corner of the license plate image

$absoluteleft$$absolutetop$$absoluteright$$absolutebottom$ Coordinates of

the top left corner and the bottom right corner of the license plate image in

absolute format (0hellip 1)

$width$ Width of the image in pixels

$height$ Height of the image in pixels

$ip$ IP address of the camera

$roiid$ ROI Id that detected the plate

$id$ Unique ID for the detected plate The database option needs to be enable in

the camera

$direction$ Direction of movement

5 Specify the View (Axis camera view stream identifier by default set to 0)

6 Write the User (username of the Axis camera)

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7 Write the Password (password of the user of the Axis Camera)

8 Click on the button to store the configuration in the camera

9 Next access the Axis cameraacutes setup and click on the Video menu Then click on the

Video Stream option In the Overlay Settings section select the checkbox Include text

and in the input field write D

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Axis camera setup Video gt Video Stream

23 Write results to SD

VaxALPR On Camera can save a JPEG image to an SD card (inserted in the Axis camera) on each

plate recognition

IMPORTANT All the images will be stored in the SD Card in the folder ldquoareasVaxreaderYYYY-

MM-DDrdquo If the plate is in a whitelist andor blacklist the images will be stored in

ldquoareasVaxreaderYYYY-MM-DDWHITELISTrdquo or ldquoareasVaxreaderYYYY-MM-

DDBLACKLISTrdquo

NOTE Each image saved will be labeled as HHMMSS-PLATEjpg with the timestamp in

UTCGMT

To configure this option do the following

1 Access the Axis camerarsquos setup and click on the Applications menu Then click on the

VaxALPR On Camera gt Settings option Finally click on the Main page link This opens a

window with the VaxALPR Configuration Screen

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Axis camera setup Applications gt VaxALPR On Camera gt Settings

VaxALPR Configuration screen

2 Click over Reporting menu option

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VaxALPR Rerporting screen

3 Click over Write Result panel header to show details

4 Select SD checkbox to activate Write result reporting

5 Click on the button to store the configuration in the camera

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6 Next access the Axis cameraacutes setup and click on the System Options menu Then click

on the Storage gt Overview option Check that the Status of the SD Card is ready

NOTE When a memory card is inserted it is mounted automatically

Axis camera setup System Options gt Storage Overview

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7 For more information about what you can do with the SD Card click on the

button that appears on the upper right corner of the Storage Management screen

Axis camera setup System Options gt Storage Overview gt Storage Management

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24 Write results to Network share

VaxALPR On Camera can save a JPEG image to a network share (a folder created in the local

network) on each plate recognition

IMPORTANT All the images will be stored in the network share in the folder ldquoaxis-

ltDeviceSerialNumbergtareasVaxreaderYYYY-MM-DDrdquo If the plate is in a whitelist andor

blacklist the images will be stored in ldquoaxis-ltDeviceSerialNumbergtareasVaxreaderYYYY-MM-

DDWHITELISTrdquo or ldquoaxis-ltDeviceSerialNumbergtareasVaxreaderYYYY-MM-DDBLACKLISTrdquo

NOTE Each image saved will be labeled as HHMMSS-PLATEjpg with the timestamp in

UTCGMT

To configure this option do the following

1 Access the Axis camerarsquos setup and click on the Applications menu Then click on the

VaxALPR On Camera gt Settings option Finally click on the Main page link This opens a

window with the VaxALPR Configuration Screen

Axis camera setup Applications gt VaxALPR On Camera gt Settings

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VaxALPR Configuration screen

1 Click over Reporting menu option

VaxALPR Reporting screen

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1 Click over Write Result panel header to show details

2 Select Network share checkbox to share local file through local network

3 Click on the button to store the configuration in the camera

4 Next access the Axis cameraacutes setup and click on the System Options menu Then click

on the Storage gt Overview option Finally click on the Network Share link

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Axis camera setup System Options gt Storage Overview

2 Set up the Network Share

Write a Host (IP address of the host server)

Write the Share (name of the share on the host server)

Select The share requires a login checkbox if the network share requires login

credentials and write the User name and Password

Click on the Connect button

NOTE For more information about what you can do with the Network Share click on

the button that appears on the upper right corner of the Storage Management

screen

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Axis camera setup System Options gt Storage Overview gt Storage Management

25 Send HTTP or HTTPS POST XML events

Choose this reporting option if you want VaxALPR On Camera to send the event in a XML over

a HTTP POST This method is also valid to send an Analytic Event to Milestone

To activate this option do the following

1 Click on the XML header to expand the HTTP Post XML integration menu

2 Enable the Active checkbox

3 Write the URL The URL needs to be a well-formed URI like httpmyservercom or

httpsmyservercomportdestinationmypagephp For Milestone the URL should

be httpmilestoneserver9090

Both domain names or IP address can be used

4 Modify the message if needed By default the message is a valid Analytic Event for

Milestone The message can use Dynamic text like the Overlay reporting option

NOTE You can use dynamic text replacement to match the current plate information

$date$ Date in ISO8601 format

$plate$ License plate number

$country$ Country of the vehicle

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 25 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

$blacklist$ Description of the plate on the blacklist

$whitelist$ Description of the plate on the whitelist

$ifblacklist$ $ifblacklist$ If the plate is on the blacklist the text in the if clause

will be displayed

$ifwhitelist$ $ifwhitelist$ If the plate is on the whitelist the text in the if

clause will be displayed

$ifnolist$$ifnolist$ If the plate in not on a list the test in the if clause will be

displayed

$confidence$ Global confidence of the plate (0 ndash 100)

$processingtime$ Milliseconds the OCR takes to process the reading

$left$$top$$right$$bottom$ Pixel coordinates of the top left corner and the

bottom right corner of the license plate image

$absoluteleft$$absolutetop$$absoluteright$$absolutebottom$ Coordinates of

the top left corner and the bottom right corner of the license plate image in

absolute format (0hellip 1)

$width$ Width of the image in pixels

$height$ Height of the image in pixels

$ip$ IP address of the camera

$roiid$ ROI Id that detected the plate

$id$ Unique ID for the detected plate The database option needs to be enable in

the camera

$direction$ Direction of movement

$image$ The jpeg image encoded in base64

$jpegsize$ Size in bytes of the JPEG image after the base64 decoding

5 Click Submit reporting to store the configuration in the camera

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 26 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

VaxALPR On Camera HTTP Post XML configuration

You can find the XML Schema file (xsd) for the Milestone Analytic Event at Vaxtorrsquos website in

the developerrsquos zone httpwwwvaxtoresdevelopers-zone

Vaxtorrsquos website gt Developerrsquos zone

251 Well-formed XML

Below is an example of the default well-formed XML sent in an HTTP POST on the recognition

of plate number M8016LS

NOTE The bounding box information refers to the snapshot (image of the license plate

recognition encoded in base64 format) sent in the message

ltxml version=10 encoding=utf-8gt ltAnalyticsEvent xmlnsi=httpwwww3org2001XMLSchema-instance xmlns=urnmilestone-systemsgt

VaxALPR On Camara Developerrsquos guide

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ltEventHeadergt ltIDgt00000000-0000-0000-0000-000000000000ltIDgt ltTimestampgt2016-05-23T083936135998ZltTimestampgt ltTypegtLicense Plate RecognitionltTypegt ltMessagegtVaxALPR On Camera EventltMessagegt ltCustomTaggtM8016LSltCustomTaggt ltSourcegt ltNamegt1921680100ltNamegt ltSourcegt ltEventHeadergt ltDescriptiongtM8016LSltDescriptiongt ltObjectListgt ltObjectgt ltNamegtPlateltNamegt ltConfidencegt0972857ltConfidencegt ltValuegtM8016LSltValuegt ltAlarmTriggergttrueltAlarmTriggergt ltSizegt46ltSizegt ltBoundingBoxgt ltTopgt042ltTopgt ltLeftgt023ltLeftgt ltBottomgt054ltBottomgt ltRightgt055ltRightgt ltBoundingBoxgt ltObjectgt ltObjectListgt ltSnapshotListgt ltSnapshotgt ltTimeOffsetgt0ltTimeOffsetgt ltWidthgt1280ltWidthgt ltHeightgt960ltHeightgt ltSizeInBytesgt193656ltSizeInBytesgt ltImagegtBASE64ENCODEDJPEGltImagegt ltSnapshotgt ltSnapshotListgt ltVendorgt ltNamegtVaxtor SystemsltNamegt ltVendorgt

ltAnalyticsEventgt

Well-formed XML sent in an HTTP POST

252 Configure Milestone

Once the reporting option HTTP POST is configured we need to set up Milestone to receive

and handle our events To do this we recommend the following steps

1 Enable Milestone to receive our events

Access the Milestone Management Application and click on the Options menu Then

click on the Settings option This opens a new window Click on the Analytic Events

option and select the Enabled checkbox Finally click on the Ok button to save the

changes

VaxALPR On Camara Developerrsquos guide

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Milestone Management Application gt Options menu gt Settings option

Milestone Management Application gt Options menu gt Settings option gt Analytic Events option Enabled

2 Create the VaxALPR On Camera Event in Milestone

Click on the Surveillance Server drop down menu Next click on the Advanced

Configuration drop down menu and on the Events and Output drop down menu Click

on the Analytics Events option and on the right-side button of your mouse to access

the Create New button Click on the Create New button to set up the event

Write a Name of the Analytics Event (VaxALPR On Camera Event)

Finally click on the Ok button to save the changes

VaxALPR On Camara Developerrsquos guide

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Surveillance Server gt Advanced Configuration gt Events and Output gtAnalytic Events option Create New

VaxALPR On Camara Developerrsquos guide

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Surveillance Server gt Advanced Configuration gt Events and Output gtAnalytic Events VaxALPR On

Camera Event

3 Create the alarm that will trigger when Milestone receives the VaxALPR On Camera

Event

Click on the Surveillance Server drop down menu Next click on the Advanced

Configuration drop down menu and on the Alarms drop down menu Click on the

Alarm Definitions option and on the right-side button of your mouse to access the

Create New button Click on the Create New button to set up the alarm

Select the Enable checkbox to activate the alarm

Write a Name of the alarm (Plate Detected)

Select a Triggering event from the drop-down list The Triggering event should be

the Analytics Event A second drop-down list will appear

Select the VaxALPR On Camera Event from the second drop-down list

Select a Source (the camera with the installed VaxALPR On Camera software)

Finally click on the Ok button to save the changes

Surveillance Server gt Advanced Configuration gt Alarms gtAlarm Definitions option Create New

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Surveillance Server gt Advanced Configuration gt Alarms gtAlarm Definitions Plate Detected

4 Modify the Alarm Data Settings

Click on the Surveillance Server drop down menu Next click on the Advanced

Configuration drop down menu and on the Alarms drop down menu Next click on the

Alarm Data Settings option Click on the Alarm List Configuration tab and move the

Object column from the Available columns to the Selected columns This column will

indicate the plate number in Milestone

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Surveillance Server gt Advanced Configuration gt Alarms gtAlarm Data Settings Alarm List Configuration

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 33 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

26 Send HTTP or HTTPS POST JSON events

Choose this reporting option if you want VaxALPR On Camera to send the event in a JSON

object over a HTTP POST

To activate this option do the following

1 Click on the JSON header to expand the HTTP Post JSON integration menu

2 Enable the Active checkbox

3 Write the URL The URL needs to be a well-formed URI like httpmyservercom or

httpsmyservercomportdestinationmypagephp Both domain names or IP

address can be used

4 Modify the message if needed The message can use Dynamic text like the Overlay

reporting option

NOTE You can use dynamic text replacement to match the current plate information

$date$ Date in ISO8601 format

$plate$ License plate number

$country$ Country of the vehicle

$blacklist$ Description of the plate on the blacklist

$whitelist$ Description of the plate on the whitelist

$ifblacklist$ $ifblacklist$ If the plate is on the blacklist the text in the if clause

will be displayed

$ifwhitelist$ $ifwhitelist$ If the plate is on the whitelist the text in the if

clause will be displayed

$ifnolist$$ifnolist$ If the plate in not on a list the test in the if clause will be

displayed

$confidence$ Global confidence of the plate (0 ndash 100)

$processingtime$ Milliseconds the OCR takes to process the reading

$left$$top$$right$$bottom$ Pixel coordinates of the top left corner and the

bottom right corner of the license plate image

$absoluteleft$$absolutetop$$absoluteright$$absolutebottom$ Coordinates of

the top left corner and the bottom right corner of the license plate image in

absolute format (0hellip 1)

$width$ Width of the image in pixels

$height$ Height of the image in pixels

$ip$ IP address of the camera

VaxALPR On Camara Developerrsquos guide

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$roiid$ ROI Id that detected the plate

$id$ Unique ID for the detected plate The database option needs to be enable in

the camera

$direction$ Direction of movement

$image$ The jpeg image encoded in base64

$jpegsize$ Size in bytes of the JPEG image after the base64 decoding

5 Click Submit reporting to store the configuration in the camera

VaxALPR On Camera HTTP Post JSON configuration

27 Send proprietary events

Choose this reporting option if you want VaxALPR On Camera to send a predefined data

stream to a server on each plate recognition

To activate this option do the following

1 Click on the Vaxtor protocol header to expand the Proprietary events integration

menu

2 Enable the Active checkbox

3 Write the Host address Domain names or IP address can be used

4 Write the Port (destination port)

5 Write the Camera Id (unique identifier for each camera)

6 Click on the Submit reporting button to store the information in the camera

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 35 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

Vaxtor protocol reporting option

You can download a full example at Vaxtorrsquos website in the developerrsquos zone

httpwwwvaxtoresdevelopers-zone This sample code allows you to capture parse and

display the results obtained from the camera in your computer It is programmed in NET and

contains two projects

- VaxAlprRemotePlateParserdll Library used to capture and parse incoming data

packages from the VaxALPR On Camera software

- VaxAlprOnCameraViewer Application that displays the license plate readings on your

computer

If you wish to use the source code do the following

1 Listen in a socket and capture the data package sent by the VaxALPR On Camera

software (see description of the data package below)

2 Send the data package to the DLL parser and get the license plate information

NOTE Some of the functions that appear in the parser are ldquoGetPlateNumber()rdquo

ldquoGetOCRImage()rdquo ldquoGetCountry()rdquo etc

3 Display the license plate reading on your computer

VaxALPR On Camara Developerrsquos guide

Version 20

VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 36 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

Vaxtorrsquos website gt Developerrsquos zone

271 Proprietary notification data package

Each time a license plate is recognized VaxALPR On Camera opens a TCPIP communication

sends a predefined data stream and closes the communication The format of the message

sent is detailed below

Message length

Message type

Fixed message

Description

4 bytes int32 0xCAFEBABE Header message

4 bytes int32 0xBABE10 Result message

4 bytes int32 - VaxALPR ID (Instance ID in VaxALPR configuration file)

8 bytes int64 - Time Stamp (date in milliseconds)

4 bytes int32 - NC1 Number of ASCII characters in the plate

NC1 bytes byte - ASCII bytes array

4 bytes int32 - NC2 Number of ASCII characters of the plate origin

NC2 bytes byte - ASCII bytes array

Not used 4 bytes int32 - ROI ID containing the license plate (1hellipn)

If 0 license plate is situated out of ROI

8 bytes double - Global Confidence of the plate (0 ndash 100)

8 bytes double - Plate charactersrsquo height (pixels)

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 37 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

NC1 bytes float - Character confidence of the plate (0hellip100)

8 bytes double - Time the OCR takes to process the reading (milliseconds)

4 bytes int32 - x0 coordinate of the plate (pixel coordinates of the top left corner of the license plate image)

4 bytes int32 - y0 coordinate of the plate (pixel coordinates of the top left corner of the license plate image)

4 bytes int32 - x1 coordinate of the plate (pixel coordinates of the bottom right corner of the license plate image)

4 bytes int32 - y1 coordinate of the plate (pixel coordinates of the bottom right corner of the license plate image)

8 bytes int64 - OCR image timestamp (milliseconds)

4 bytes int32 - SF Size of the OCR image (bytes)

SF bytes byte - OCR image data (JPG format)

4 bytes int32 - R1 Size of image reserved data (bytes)

R1 bytes byte - Reserved data (R1 bytes)

Not used 8 bytes int64 - Environment image timestamp (milliseconds)

Not used 4 bytes int32 - SF Size of the environment image (bytes)

Not used SF bytes byte - Environment image data (JPG format)

Not used 4 bytes int32 - R2 Size of image reserved data (bytes)

Not used R2 bytes byte - Reserved data (R2 bytes)

Not used 4 bytes int32 - Vehicle direction (0=gtunknown 1=gtgetting closer 2=gtgetting farther)

Not used 4 bytes int32 - ALPR multi-plate rate

4 bytes int32 - OCR mode (1 Triggered mode 0 Free-flow mode)

4 bytes int32 0x42F83988 Header of optional data

Optional 4 bytes int32 0x50000001 Plate number in wide string format section

4 bytes int32 - Number of characters in the plate

4 bytes int32 - NC3 Number of bytes the full plate string occupies

NC3 bytes byte - Array of bytes representing the string in UTF8 or UNICODE format

Optional 4 bytes int32 0x50000002 Hot-List section

NOTE This section can appear twice once per list

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 38 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

4 bytes int32 - List type (1white list 2 black list)

4 bytes int32 - NC4 Number of ASCII characters in the message

NC4 bytes byte - ASCII bytes array containing the message

Optional 4 bytes int32 0x50000003 String code section ()

NOTE This section can appear more than once but only once per string code

4 bytes int32 - String code (1plate country region 2 vehicle color 3 vehicle brand 4 vehicle model)

4 bytes int32 - NC5 Number of ASCII characters of the string

NC5 bytes byte - ASCII bytes array containing the characters

Optional 4 bytes int32 0x50000004 GPS section

8 bytes double - Latitude (decimal format)

4 bytes int32 - Latitude direction (1North 2South)

8 bytes double - Longitude (decimal format)

4 bytes int32 - Longitude direction (1West 2East)

4 bytes int32 0x42F87D89 End message

Proprietary event format

28 TCP Connector

Choose this reporting option if you want VaxALPR On Camera to send a string data type to a

server on each plate recognition

To activate this option do the following

1 Click on the TCP header to expand the TCP Connector integration menu

2 Enable the Active checkbox

3 Write the Host (IP address or hostname of the destination server)

4 Write the Port (destination port)

5 Write the Text You can use dynamic text replacement to match the current plate

information

$date$ Date in ISO8601 format

$plate$ License plate number

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 39 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

$country$ Country of the vehicle

$blacklist$ Description of the plate on the blacklist

$whitelist$ Description of the plate on the whitelist

$ifblacklist$ $ifblacklist$ If the plate is on the blacklist the text in the if clause

will be displayed

$ifwhitelist$ $ifwhitelist$ If the plate is on the whitelist the text in the if

clause will be displayed

$ifnolist$$ifnolist$ If the plate in not on a list the test in the if clause will be

displayed

$confidence$ Global confidence of the plate (0 ndash 100)

$processingtime$ Milliseconds the OCR takes to process the reading

$left$$top$$right$$bottom$ Pixel coordinates of the top left corner and the

bottom right corner of the license plate image

$absoluteleft$$absolutetop$$absoluteright$$absolutebottom$ Coordinates of

the top left corner and the bottom right corner of the license plate image in

absolute format (0hellip 1)

$width$ Width of the image in pixels

$height$ Height of the image in pixels

$ip$ IP address of the camera

$roiid$ ROI Id that detected the plate

$id$ Unique ID for the detected plate The database option needs to be enable in

the camera

$direction$ Direction of movement

$image$ The jpeg image encoded in base64

$jpegsize$ Size in bytes of the JPEG image after the base64 decoding

Click on the Submit reporting button to store the information in the camera

VaxALPR On Camara Developerrsquos guide

Version 20

VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 40 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

VaxALPR Configuration Reporting options gt TCP Connector

29 Dorlet integration

Choose this reporting option if you want VaxALPR On Camera to send a notification to a Dorlet

AS3 controller on each plate recognition

To activate this option do the following

1 Click on the Dorlet header to expand the Dorlet integration menu

2 Write the AS3 Host (IP address or hostname of the destination server)

3 Write the AS3 Port (destination port)

4 Write the AS3 LAM (LAM identifier)

5 Write the AS3 Vial Id (Vial identifier)

6 Click on the Submit reporting button to store the information in the camera

VaxALPR On Camara Developerrsquos guide

Version 20

VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 41 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

VaxALPR Configuration Reporting options gt Dorlet integration

3 VaxALPR On Camera HTTP API

Since version 20 VaxALPR On Camera implements an HTTP API that allow third parties to

- Modify the whitelist and blacklists on the camera

- Upload and download the configuration file

- Query information from the local plate database (if the database is enabled)

- Recover the image associated to a record in the database (if the database and the

image recording is enabled)

31 List management 1 Add a vehicle to the blacklist

httpcameraiplocalVaxreaderblacklistcgiaction=addampplate=1234ABCampdescription=My_description Response ltresult status=okgt

2 Add a vehicle to the whitelist httpcameraiplocalVaxreaderwhitelistcgiaction=addampplate=1234ABCampdescription=Mi_description Response ltresult status=okgt

3 Delete a vehicle from the blacklist httpcameraiplocalVaxreaderblacklistcgiaction=delampplate=1234ABC Response

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 42 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

ltresult status=okgt 4 Delete a vehicle from the whitelist

httpcameraiplocalVaxreaderwhitelistcgiaction=delampplate=1234ABC Response ltresult status=okgt

5 Get all the plates on the blacklist httpcameraiplocalVaxreaderblacklistcgiaction=get-allampformat=xml ltblacklist clean=truegt ltplate plate=1234ABC description=My_descriptiongt ltblacklistgt

6 Get all the plates on the whitelist httpcameraiplocalVaxreaderwhitelistcgiaction=get-allampformat=xml ltwhitelist clean=truegt ltplate plate=1234ABC description=My_descriptiongt ltwhitelistgt

7 Get a single plate from the blacklist httpcameraiplocalVaxreaderblacklistcgiaction=getampplate=1234ABC ltblacklistgt ltplate plate=1234ABC description=My_descriptiongt ltblacklistgt

8 Get a single plate from the whitelist httpcameraiplocalVaxreaderwhitelistcgiaction=getampplate=1234ABC ltwhitelistgt ltplate plate=1234ABC description=My_descriptiongt ltwhitelistgt

32 Configuration file

1 Download the current configuration file

httpmycameraiplocalVaxreaderalprcgi

Response (example content may vary depending on the camera model) ltconfigurationgt

ltresolutionsgt

ltresolution id=0 width=1280 height=720gt

ltresolution id=1 width=1024 height=768gt

ltresolution id=2 width=1024 height=640gt

ltresolution id=3 width=640 height=480 selected=1gt

ltresolution id=4 width=640 height=400gt

ltresolution id=5 width=320 height=240gt

ltresolution id=6 width=176 height=144gt

ltresolutionsgt

ltviewsgt

ltview id=0 description=View Area 1gt

ltview id=1 description=Aacuterea de visualizacioacuten 2 selected=1gt

ltview id=2 description=View area 3gt

ltviewsgt

ltmode working_mode=0 is_virtual_port=true virtual_port=1 generate_database=

true store_database_images=true retry_notifications=false check_whitelist=false

check_blacklist=falsegt

ltocr same_plate_delay=60 same_plate_max_chars_distance=2 min_char_height=17 max_ch

ar_height=40 min_global_confidence=70 min_character_confidence=50 grammar_strict=

true report_times=falsemin_num_plate_characters=5 max_num_plate_characters=9 max_

slop_angle=20 background_mode=1 read_double_line_plates=true algorithm_complexity=

2 plate_depth=1 reserved=1002 state=0gt

ltcountriesgt

ltcountry id=1195gt

ltcountriesgt

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 43 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

ltroisgt

ltroi id=1 width=629 height=482 type=2gt

ltpointsgt

ltpoint x=96 y=470gt

ltpoint x=64 y=379gt

ltpoint x=73 y=303gt

ltpoint x=98 y=258gt

ltpoint x=121 y=237gt

ltpoint x=413 y=182gt

ltpoint x=496 y=125gt

ltpoint x=623 y=67gt

ltpoint x=602 y=0gt

ltpoint x=0 y=2gt

ltpoint x=1 y=471gt

ltpointsgt

ltroigt

ltroi id=4 width=454 height=351 type=2gt

ltpointsgt

ltpoint x=449 y=238gt

ltpoint x=401 y=280gt

ltpoint x=394 y=328gt

ltpoint x=404 y=346gt

ltpoint x=451 y=347gt

ltpointsgt

ltroigt

ltroisgt

ltocrgt

ltanalytic recognition_timeout=500 min_num_occurrences=1 max_num_occurrences=5 plat

e_report=3gt

ltreportinggt

lta1001 active=false host=a1001ip user=user password=password controller_t

oken=ControllerAxis-accc8888888 AccessController idpoint_token=ReaderAxis-

accc88888881453299458759360000gt

ltvaxtor_protocol active=true host=192168088 port=9100 id=1gt

ltoverlay active=true user=root password=pass message=$date$ - $plate$

($country$) $blacklist$ view=0gt

ltdorlet active=false host= port=9090 vial_id=1 LAM=0gt

ltwrite_result sd=false network_share=falsegt

ltvapix active=true id=1gt

lttcp active=false host= port=20000 message=$date$$plate$$country$$black

list$$whitelist$gt

ltjson active=false url=http192168022130000 message=

plate$plate$ date$date$ country$country$ confidence$confidence$

left$left$ top$top$ right$right$ bottom$bottom$

charheight$charheight$ processingtime$processingtime$ gt

ltxml active=false url= message=ltxml version=10 encoding=utf-8gt

ltAnalyticsEvent xmlnsi=httpwwww3org2001XMLSchema-instance

xmlns=urnmilestone-systemsgt ltEventHeadergt ltIDgt00000000-0000-0000-0000-

000000000000ltIDgt ltTimestampgt$date$ltTimestampgt ltTypegtLicense Plate RecognitionltTypegt

ltMessagegtVaxALPR On Camera EventltMessagegt ltCustomTaggt$plate$ltCustomTaggt ltSourcegt

ltNamegt$ip$ltNamegt ltSourcegt ltEventHeadergt ltDescriptiongt$plate$ltDescriptiongt

ltObjectListgt ltObjectgt ltNamegtPlateltNamegt ltConfidencegt$confidence$ltConfidencegt

ltValuegt$plate$ltValuegt ltAlarmTriggergttrueltAlarmTriggergt ltSizegt$charheight$ltSizegt

ltBoundingBoxgt ltTopgt$absolutetop$ltTopgt ltLeftgt$absoluteleft$ltLeftgt

ltBottomgt$absolutebottom$ltBottomgt ltRightgt$absoluteright$ltRightgt ltBoundingBoxgt

ltObjectgt ltObjectListgt ltSnapshotListgt ltSnapshotgt ltTimeOffsetgt0ltTimeOffsetgt

ltWidthgt$width$ltWidthgt ltHeightgt$height$ltHeightgt ltSizeInBytesgt$jpegsize$ltSizeInBytesgt

ltImagegt$image$ltImagegt ltSnapshotgt ltSnapshotListgt ltVendorgt ltNamegtVaxtor SystemsltNamegt

ltVendorgt ltAnalyticsEventgtgt

ltacs active=true host=acshost port=50333 username=user password=password

SSL=false bookmark_name=$plate$ -

$country$ bookmark_description=$ifblacklist$Blacklist

$blacklist$$ifblacklist$$ifwhitelist$Whitelist $whitelist$$ifwhitelist$gt

ltreportinggt

ltconfigurationgt

2 Upload a new configuration file To upload a configuration file create an HTTP POST

call to the URL httpcameraiplocalVaxreaderalprcgi where the body of the

message is the configuration file

VaxALPR On Camara Developerrsquos guide

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VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 44 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

The configuration file should have the same format of the configuration file

downloaded from the camera

Response

If the configuration file is correct the response will be current camera

configuration

If the configuration file is incorrect an error XML with the wrong parameters will

be returned The HTTP result code will be 500

lterror message=rdquoError setting configurationrdquo reason=rdquoltreasongtrdquogt

33 Database

It is possible to query the local database (if enabled) on the camera The database queries

can return an empty response if the database is locked in that case wait a few

milliseconds and retry the query

All the queries are automatically paged (100 results per query) To request a different

page add the parameter ldquopage=ltpagegtrdquo to the URL

The total count of records for the query is returned as the count attribute of the resultset

The record count in this page is returned as the results attribute in the resultset

1 Query all the plates in the database (ordered from newer to older)

httpcameraiplocalVaxreaderplatescgi

Response (example) ltresultset results=100 limit=100 count=28642gt

ltplate id=28642 plate_number=1234ABC plate_origin=UNK confidence

=100 taken_on=2017-11-

23T181125264Z is_blacklist=false blacklist_description= is_whi

telist=false whitelist_description=character_height=21 character

_confidence=10000100001000010000100001000010000 process

ing_time=100 multiplate_rate=1 signaled=false roi_id=0 left=1

top=1 right=5 bottom=5error=false state= num_rows=1 dire

ction=1gt

ltresultsetgt

2 Query all the plates since a given ID (ordered from older to newer)

httpcameraiplocalVaxreaderplatescgiid=ltidgt

Response (example) ltresultset results=100 limit=100 count=27956gt

ltplate id=687 plate_number=1234ABC plate_origin=Spain confidence

=100 taken_on=2017-10-

25T133541506Z is_blacklist=false blacklist_description= is_whi

telist=false whitelist_description=character_height=29 character

_confidence=10000100001000010000100001000010000 process

ing_time=6904709005355835 multiplate_rate=3 signaled=false roi_

id=-

1 left=240 top=411right=405 bottom=475 error=false state=U

NKNOWN num_rows=1 direction=1gt

ltplate id=688 plate_number=1234ABC plate_origin=Spain confidence

=78857142857142861 taken_on=2017-10-

VaxALPR On Camara Developerrsquos guide

Version 20

VAXTOR Ronda de Poniente 15 First floor Tres Cantos Madrid Spain 45 Tel +34 91 757 22 11 ndash Email infoeuvaxtorcom ndash web httpwwwvaxtorcom

25T133550733Z is_blacklist=false blacklist_description= is_whi

telist=falsewhitelist_description= character_height=27 character

_confidence=0001000010000100001000094005800 processing_

time=66248625099658966 multiplate_rate=1 signaled=false roi_id=

-

1left=498 top=259 right=639 bottom=319 error=false state=U

NKNOWN num_rows=1 direction=0gt

ltresultsetgt

3 Query by plate number from the (ordered from older to newer)

httpcameraiplocalVaxreaderplatescgiplate=ltplate_number_urlscapedgt

The query accepts wildcards For example to query all the plates that ends in 89 the

plate value will be 89

IMPORTANT The lsquorsquo character will need to be escaped in the URL (25) so the URL

that you will need to use in a navigator will be

httpcameraiplocalVaxreaderplatescgiplate=2589

Response (example) ltresultset results=1 limit=100 count=1gt

ltplate id=14219 plate_number=AAA89 plate_origin=UNKNOWN confiden

ce=100 taken_on=2017-11-

08T163259Z is_blacklist=false blacklist_description= is_whiteli

st=false whitelist_description=character_height=25 character_con

fidence=1000010000100001000010000 processing_time=4145051

121711731 multiplate_rate=1 signaled=false roi_id=-

1 left=477 top=275 right=631 bottom=355error=false state=U

NKNOWN num_rows=1 direction=0gt

ltresultsetgt

34 Images

1 Recover the image linked to a record in the database httpcameraiplocalVaxreaderimagecgiid=ltidgt Response If the image is available a JPEG will be returned If the image is not available a XML will be returned with the information about the

error The HTTP result code will be 500 lterror message=Error reading file reason=Failed to open

file

varspoolstorageareasSD_DISKVaxreaderdbimages1jpg

No such file or directorygt