ANPR events with picture Hikvision Node

Question

I have subscrived to the events of a Hikvision camera doing a get request to /ISAPI/Event/notification/alertStream. I am interested in ANPR events, this type of events return a multipart response which includes an xml with the event info, a license plate picture and a vehicle picture. All this info came in differents buffers because is a lot of information, for that I convert those buffers in strings and I put them together until I found the separator --boundary--. Now, when I got a complete events I try to handle the event, first I got the xml in which I have the info and I can get correctly all I need, but I am not able to save the image in my computer. Here is an example of the event info:

> Content-Disposition: form-data; name="anpr.xml"; filename="anpr.xml"
> Content-Type: text/xml Content-Length: 2230
> 
> <?xml version="1.0" encoding="UTF-8"?> <EventNotificationAlert
> version="2.0" xmlns="http://www.hikvision.com/ver20/XMLSchema">
> <ipAddress>192.168.55.6</ipAddress>
> <ipv6Address>::ffff:192.168.55.6</ipv6Address> <portNo>80</portNo>
> <protocol>HTTP</protocol> <macAddress>08:a1:89:ff:6e:1a</macAddress>
> <channelID>1</channelID>
> <dateTime>2022-03-16T13:54:03+01:00</dateTime>
> <activePostCount>1</activePostCount> <eventType>ANPR</eventType>
> <eventState>active</eventState>
> <eventDescription>ANPR</eventDescription> <channelName> asdfg
> </channelName> <ANPR> <country>0</country>
> <licensePlate>unknown</licensePlate> <line>1</line>
> <direction>forward</direction> <confidenceLevel>0</confidenceLevel>
> <plateType>unknown</plateType> <plateColor>unknown</plateColor>
> <licenseBright>0</licenseBright> <dangmark>unknown</dangmark>
> <twoWheelVehicle>yes</twoWheelVehicle>
> <plateCharBelieve></plateCharBelieve>
> <vehicleType>nonmotorVehicle</vehicleType> <detectDir>8</detectDir>
> <detectType>5</detectType> <alarmDataType>0</alarmDataType>
> <vehicleInfo> <index>1344</index> <colorDepth>0</colorDepth>
> <color>unknown</color> <speed>0</speed> <length>0</length>
> <vehicleLogoRecog>0</vehicleLogoRecog>
> <vehileSubLogoRecog>0</vehileSubLogoRecog>
> <vehileModel>0</vehileModel> </vehicleInfo> <pictureInfoList>
> <pictureInfo> <fileName>nonMotorPicture.jpg</fileName>
> <type>nonMotorPicture</type> <dataType>0</dataType>
> <picRecogMode>0</picRecogMode> <absTime>20220316135403615</absTime>
> <pId>2022031613540382300NhqQD51oTGTYE</pId> </pictureInfo>
> <pictureInfo> <fileName>detectionPicture.jpg</fileName>
> <type>detectionPicture</type> <dataType>0</dataType>
> <picRecogMode>0</picRecogMode> <absTime>20220316135403615</absTime>
> <plateRect> <X>0</X> <Y>0</Y> <width>0</width> <height>0</height>
> </plateRect> <pId>2022031613540382300KBGZqPyyVYGta</pId>
> </pictureInfo> </pictureInfoList>
> <originalLicensePlate>unknown</originalLicensePlate>
> <CRIndex>0</CRIndex> </ANPR>
> <UUID>2022031613540382300Y3s6LFDQIWOfg73fuU9UVFguFLf40ucwK0ghCc8iVMPG</UUID>
> <picNum>2</picNum> <monitoringSiteID></monitoringSiteID>
> <isDataRetransmission>false</isDataRetransmission>
> </EventNotificationAlert>
> 
> 
> 
> Content-Disposition: form-data;
> name="2022031613540382300NhqQD51oTGTYE.jpg";
> filename="nonMotorPicture.jpg" Content-Type: image/jpeg
> Content-Length: 62407
> 
> ����►JFIF☺☺☺☺���☻☺☺☺☺☺☻☺☺☺☻☻☻☻☻♦♥☻☻☻☻♣♦♦♥♦♠♣♠♠♠♣♠♠♠    ♠        ♠♂
> 
> 
> 
> 
> ♂♀♂ ♀
> 
> 
> ☺☻☻☻☻☻☻♣♥♥♣ ♠ ....
> 
> Content-Disposition: form-data;
> name="2022031613540382300KBGZqPyyVYGta.jpg";
> filename="detectionPicture.jpg" Content-Type: image/jpeg
> Content-Length: 717259
> 
> ����� [ID = 1344 pr= type=0x60] [cur_frm_num=395344
> snap_frm_num=395344 ps_frm_num=0] [obj_rect = 0.023958x0.566667,
> 0.101562x0.292593] [plate_rect = 0.000000x0.000000, 0.000000x0.000000] �D☻�D☻�?�)♦↑⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂X��♥∟☻♣(=→♥♥☻‼☺
> ♥       ☻♦
> ⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂�☺�)♦↑♀♥♠☺�Q�☺�8♦☺♣♥♦☺☻�8�∟z?☻�?�∟z?♦9��>V♫->♦'1h?♦���>�I�>?5�>d;⌂?♦�K↨?333>☻�?�(<?TDD�<◄◄◄?☻�=�Ε>⌂⌂2☺G.☺d☻�☺�♥⌂
> 6778KZ5↓�♥☻6778KZ5↓�♥☻6778KZ5↓�♥☻6778KZ5↓�♥⌂⌂⌂⌂⌂c6778KZ5↓¶#♣⌂⌂⌂⌂⌂j♠⌂▲6778KZ5↓¶#♣⌂⌂⌂⌂⌂j♠⌂▲6778KZ5↓¶#♣⌂⌂⌂⌂⌂j♠⌂▲6778KZ5↓¶#♣⌂⌂⌂⌂⌂j♠⌂▲6778KZ5↓¶#♣⌂⌂⌂⌂⌂♠⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂♠♥♥
> K.☺d☻�☺�♥♦☺�☺C♥7♦☻♣�☺⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂⌂5♂�������♠♦♣♠♣♦♠♠♣♠♠ ►
> 
> 
> ¶♫☼♀►↨¶↑↑↨¶▬▬→↔%▼→∟▬▬↓▼-(0%()(☺
> 
> ‼
> 
> ‼(→▬→((((((((((((((((((((((((((((((((((((((((((((((((((☻
> 
> ‼
> 
> ‼(→▬→((((((((((((((((((((((((((((((((((((((((((((((((((��♦��♥☺"☻◄☺♥◄☻��☺�☺♣☺☺☺☺☺☺☺☻♥♦♣♠
> ♂►☻☺♥♥☻♦♥♣♣♦♦☺}☺☻♥♦◄♣↕!1A♠‼Qa"q¶2��#B��§R��$3br�
> ▬↨↑↓→%&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�������������������������������������������������������������������������☺♥☺☺☺☺☺☺☺☺☺☺☻♥♦♣♠
> ♂◄☻☺☻♦♦♥♦♣♦♦☺☻w☺☻♥◄♦♣!1♠↕AQaq‼"2¶B����  #3R�§br�
> ▬$4�%�↨↑↓→&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz��������������������������������������������������������������������������♦x��♀♥☺☻◄♥◄?���N�H�R���r♫☻��☻�j
> ▼�ͱ�♫�◄jijc5♥¶�T�Q榈U!‼�*�x���X��4�0�74��3OZ�→�*�L�)��wݐ§7����⌂�1j;�v��>����A'��☻d���
> ��I�-�ʳ[�4d��E�I↑�#"���8▲���]�‼��_���☻~��صm>�K�7:����P�e♣�☺��\�6Z4�T}�H!z���:����6���;D↨���RW
> 6=W�zU♂]_I�����♀Я�l��B�♣��Y����:♀IzdK���d�M�F&@�p=�z��.�GZgKk�-n��'9�&f☺dC�i>��>�J�\�����▼��.‼��8↓n���sY�~�⌂-���→5�ݔR����→0�N
> �♫F�9�♠j��s↔����♫�lo��O%ͪH�!�z��C☼�▲�z�w↓Ң4i§Φ�%�q↨f��♫G�►v�rz�Yo(��Ķ�]�ڭ�v�eUg��G&��NB6223Y��)d�►�7→����R������↓[��n�OZ׬[WӯⅥ�d◄O♦��o,��'i�u攛�I∟���It.t�#V��qnLA��
> ʌ���♥W��$Վ�$�O��k��hg�\��>����♠��▲՝�☺g�,�↕5��O�D7�♫��n
> ���q�*���a�u;$�/4���.�♥�9E]��T‼��↔;P��3��Ҡ�B��-��↕�§
> ��o�ӣ�c:m���g��-���>�Ժ]�1Gl0Q�uK�►☺�O�m� ⌂��z�o�U�f�#za����pj 
> N�Z�s�p�)���?��n�Xna�u↑I͌��o .....

How did you subscribe to this event and get the XML with the image? — Sand, Jul 22 '22 at 10:08

score 0 · Answer 1 · edited Sep 29 '22 at 15:25

Man its a long way ahead. Bear with me.

As you get the xml I suppose you have correctly configured the ANPR listening port in the camera. Now its
Install PHP 8.0 (No web server need as of now to test)
By default the Camera should post in the <<Listening_Server>>:<<Listening_Port>>/test
Create a folder named php_anpr and inside it create a folder test
Inside test folder create another folder images
create a file in test folder named index.php and paste the following code

<?php
//php -S SERVER:PORT -t test

$id = '_'. date('Ymd_hmis');


//file_put_contents('images/LPR_JSON'.$id.'.json', json_encode($_FILES));

function WriteSingleFile($xid) {
    
    foreach ($_FILES as $file) {
        $key = $file['name'];
        $info = pathinfo($file['name']);
        $tempfilename = $file['tmp_name'];
        $extension = $info['extension'];
        $newname = 'LPR'.$xid.'_'.$key;
        $target = 'images/'.$newname;
        move_uploaded_file( $tempfilename, $target);
    }
}

WriteSingleFile($id);

?>

Now open the php_anpr folder in windows terminal and paste the following after replacing the IP of your pc and port (8080) - Note: you must also configure camera to send anpr information in the same IP and port

php -S SERVER:PORT -t test

Wait for some vehicle to be triggered in the camera alarmstream

It will send you at least 2 files detectionpicture and anpr.xml Only if licenseplate is detected, you will get License plate picture.jpg

ANPR events with picture Hikvision Node

1 Answers1