ALPR integration using C#

mano1234 · May 11, 2018, 11:57am

Hi,
We have installed the OpenAlpr software on our machine and detect number plate successfully.

Now we want to fetch that data from local queue once the software scanned the number plate.
We are stuck here, as how we can feth the plate data from local queue using c#, though sample code is available in python, we want it in c#. So we want the data from local Beanstalkd queue in json format using c#.
Please help!

Matt · May 13, 2018, 3:26am

Here is some relevant code that you may find helpful. This code pulls plates from the beanstalkd tube and is used in our Milestone plug-in:

github.com

openalpr/milestone_plugin/blob/master/OpenALPRQueueMilestone/BeanstalkWorker/Workers.cs

// Copyright OpenALPR Technology, Inc. 2018

using OpenALPRQueueConsumer.Milestone;
using OpenALPRQueueConsumer.Utility;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Turbocharged.Beanstalk;
using VideoOS.Platform;
using VideoOS.Platform.Data;
using VideoOS.Platform.Messaging;

namespace OpenALPRQueueConsumer.BeanstalkWorker
{
    internal class Worker
    {

This file has been truncated. show original

It uses the Turbocharged.Beanstalk library

-Matt

mano1234 · May 16, 2018, 11:46am

Hi Matt,
Thanks for providing code, there are few points for which needs clarification:

beanstalkAddress(What is the need of this, and which address we need to specify(in sample provided it is used as localhost:1100)
Currently it is displaying data type as ‘heartbeat’ and not proper json data with plate details. code snippet is below:
var beanstalkAddress = “localhost:11300”;
//Logger.Log.Info($“Beanstalk address used: {beanstalkAddress}”);
IConsumer consumer = await BeanstalkConnection.ConnectConsumerAsync(“localhost:11300”);
await consumer.WatchAsync(“alprd”);
```
     var test= await consumer.WatchAsync("alprd");

     Job<OpenALPRData> job1 = await consumer.ReserveAsync<OpenALPRData>();
     var json1 = Encoding.UTF8.GetString(job1.Data, 0, job1.Data.Length);
     var chk = ProcessJob(json1);

     worker =await BeanstalkConnection.ConnectWorkerAsync(beanstalkAddress, options, async (iworker, job) =>
     {
```
can we used this worker file as independent class in windows application, as we only needs this code and no plugin)