RealTime LPR response

Monakhov

Monakhov

n3wb
Feb 3, 2017
3
0
Hi guys! Need help!
Can anyone explain how to get real time plate number from DS-2CD4026FWDP-IRA in text or XML via SDK or ISAPI?

I`m reading SDK, ISAPI and so on but all I can is GET requests like http://admin:admin123@192.168.0.67/ISAPI/Traffic/channels/1/vehicleDetect/plates, with response "<subStatusCode>badXmlContent</subStatusCode>"

SDK for C++ doesn`t help at all because i`m newguy in programming

maybe someone have working piece of code and can share with me or have some explanation more useful for me
 
Sorry I haven't seen that documented anywhere, but the docs are a few years old. I'd suggest you stick to the term Hikvision uses "ANPR" in your searches, it might yield better results.
 
Last edited:
Sorry for my language

Here we go:

1) My IPC setted for getting LPR by Alarm trigger
2) I connected button to AlarmInput

PHP: 
<?php
   set_time_limit(60); //time for script exec
 
   $input_xml = '<AfterTime></AfterTime>';
   $url = "http://admin:admin123@192.168.0.67/ISAPI/Traffic/channels/1/vehicleDetect/plates";
     $array_data = array('0' => 0);
   echo '<HTML>
       <head>
           <title>ANPR</title>
           <link href="style.css" rel="stylesheet">
       </head>
       <body>
       <table><tr><th>captureTime</th><th>plateNumber</th><th>plateCountry</th></tr>'; //table head
 
    while (isset($array_data)) { //main cycle. I think its ugly((
     
       if (isset($lastNumberObject['captureTime'])) {
           $prevTime[$i] = $lastNumberObject['captureTime'];
       }   else $prevTime[$i] = 0;

       $now_day = date("Ymd");
       $now_time = date("His", time() + 3599); // I have little trouble with timezone on IPC. and i work with camera in NOW-TIME minus 1 second (while script gets result passing 1 sec)

// Next - curl options
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, "xmlRequest=" . $input_xml);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 300);
        $data = curl_exec($ch);
        
        // Making readable result
        $array_data = json_decode(json_encode(simplexml_load_string($data)), true);
     
        //...
        $lastNumber = count($array_data['Plate'])-1;
        $lastNumberObject = $array_data['Plate'][$lastNumber];
     
        // Getting true capture time
        $capture_time = substr($lastNumberObject['picName'], 0, -1);
     
       // Checking + some magic)) and output result string by string while main cycle working
        if ($lastNumberObject['captureTime']==$now_day."T".$now_time."+0200") {             
            echo '<tr><td>'.$lastNumberObject['captureTime'].'</td><td>'.$lastNumberObject['plateNumber'].'</td><td>'.$lastNumberObject['country'].'</td><td><img src="ftp://192.168.0.109:2121/192.168.0.67/anpr-ftp/'.$capture_time.'_'.$lastNumberObject['plateNumber'].'.jpg"></td></tr>';
           break;
           flush();
           curl_close($ch);
     
       }
       }
     
// Finishing html table
    echo '</table>
       </body>
       </HTML>';

?>
This code is making HTML table whith CaptureTime, PlateNumber and PlateNumber Country in a realtime. When I press the button camera get about 20-30 identical results
If I add if checking for capture time to skip same data, script shows needed data just after full exec (set_time_limit(60))

Maybe someone can help me edit this code to work better (maybe AJAX)
 
Last edited:
Repppa said:
I`m reading SDK, ISAPI and so on but all I can is GET requests like , with response "<subStatusCode>badXmlContent</subStatusCode>"

POST for the method not get, a get will never give any content to the http server ;)

And the xml is like :

Code: 
<AfterTime><picTime>0</picTime></AfterTime>
Click to expand...

Hi can you please give more info on how you got this to work, I am trying to do exactly the same thing and I am getting the same error, I am using the following XML POST method using Postman and I am hitting the ANPR camera via the NVR:

http://<username>:<password>@192.xxx.x.xx:XXXX/ISAPI/Traffic/channels/n/vehicleDetect/plates

<?xml version:"1.0" encoding="UTF-8"?>
xmlns:"http=/www.isapi.org/ver20/XMLSchema">
<AfterTime>:
<picTime>2019-11-19T22:00:00Z</picTime>
</AfterTime>:

Response I get is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<ResponseStatus version="2.0" xmlns="">
<requestURL>/ISAPI/Traffic/channels/1/vehicleDetect/plates</requestURL>
<statusCode>6</statusCode>
<statusString>Invalid XML Content</statusString>
<subStatusCode>badXmlContent</subStatusCode>
</ResponseStatus>

Many Thanks!
 
<?php
$username = 'xxxxx';
$password = 'yyyyy';

$url = "";



$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch,CURLOPT_TIMEOUT, 30);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch,CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "<AfterTime version=\"2.0\"><picTime>2020-06-20T00:00:00Z</picTime></AfterTime>");
$first_response = curl_exec($ch);
$info = curl_getinfo($ch);

preg_match('/WWW-Authenticate: Digest (.*)/', $first_response, $matches);

if(!empty($matches))
{
$auth_header = $matches[1];
$auth_header_array = explode(',', $auth_header);
$parsed = array();

foreach ($auth_header_array as $pair)
{
$vals = explode('=', $pair);
$parsed[trim($vals[0])] = trim($vals[1], '" ');
}

$response_realm = (isset($parsed['realm'])) ? $parsed['realm'] : "";
$response_nonce = (isset($parsed['nonce'])) ? $parsed['nonce'] : "";
$response_opaque = (isset($parsed['opaque'])) ? $parsed['opaque'] : "";

$authenticate1 = md5($username.":".$response_realm.":".$password);
$authenticate2 = md5("POST:".$url);

$authenticate_response = md5($authenticate1.":".$response_nonce.":".$authenticate2);

$request = sprintf('Authorization: Digest username="%s", realm="%s", nonce="%s", opaque="%s", uri="%s", response="%s"',
$username, $response_realm, $response_nonce, $response_opaque, $url, $authenticate_response);

$request_header = array($request);
$request_header[] = 'Content-Type:application/json';

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch,CURLOPT_TIMEOUT, 30);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch,CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, "<AfterTime version=\"2.0\"><picTime>2020-06-20T00:00:00Z</picTime></AfterTime>");
curl_setopt($ch, CURLOPT_HTTPHEADER, $request_header);

$result['response']= curl_exec($ch);

print_r($result['response']);

}
?>
 
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