接线说明：

            ① 将2510通信转接板连接到扩展板的扩展坞上面；

            ② 用3根母对母杜邦线将2510通信转接板与WiFi路由器连接起来，GND-GND、RX-RX、TX-TX；

            ③ 找到1根USB线，一端连接到2510通信转接板接口上，另一端连接到WiFi路由器USB接口上；

            ④ 将摄像头线连接到WiFi路由器接口上。

3.2示例程序

    下面提供一个可以进行识别圆形和矩形的参考例程（ShapeDetect\ShapeDetect\MainWindow.xaml.cs）：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using System.Threading;


namespace ShapeDetect

{

    /// <summary>

    /// 形状识别

    /// </summary>

    public partial class MainWindow : Window

    {

        //定义检测模式

        int IMAGE_MODE = 1, VIDEO_MODE = 2;


        private AutoResetEvent exitEvent;

        private Thread m_thread;


        //导入动态链接库

        [DllImport("HoughCircles_DLL.dll")]

        //检测圆

        public static extern System.UIntPtr HoughCircles([MarshalAs(UnmanagedType.LPStr)]string address, int detect_mode);

        [DllImport("SquareDetect_DLL.dll")]

        //检测矩形

        public static extern void SquareDetector([MarshalAs(UnmanagedType.LPStr)]string address, int detect_mode);


        public MainWindow()

        {

            InitializeComponent();

        }


        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            GetIni();

            imgCheckBtn.IsChecked = true;

            circleCheckBtn.IsChecked = true;

        }


        //获取ini配置文件信息

        private void GetIni()

        {

            ini_RW.FileName = System.Windows.Forms.Application.StartupPath + "\\Config.ini";

            this.videoAddress.Text = ini_RW.ReadIni("VideoUrl", "videourl", "");

            this.ipAddress.Text = ini_RW.ReadIni("ControlUrl", "controlUrl", "");

            this.portBox.Text = ini_RW.ReadIni("ControlPort", "controlPort", "");

        }


        //修改配置

        private void setBtn_Click(object sender, RoutedEventArgs e)

        {

            ini_RW.WriteIni("VideoUrl", "videourl", this.videoAddress.Text);

            ini_RW.WriteIni("ControlUrl", "controlUrl", this.ipAddress.Text);

            ini_RW.WriteIni("ControlPort", "controlPort", this.portBox.Text);


            System.Windows.MessageBox.Show("配置成功！请重启程序以使配置生效。", "配置信息", MessageBoxButton.OK, MessageBoxImage.Information);

            //this.Close();

        }


        //计数清零

        private void BoxClean()

        {

            circleTextBox.Text = "0";

            recTextBox.Text = "0";

        }


        //打开图片地址

        private void imgBtn_Click(object sender, RoutedEventArgs e)

        {

            try

            {


                BoxClean();

                //WPF中，OpenFileDialog位于Microsoft.Win32名称空间

                Microsoft.Win32.OpenFileDialog dialog = new Microsoft.Win32.OpenFileDialog();

                dialog.Filter = "All files (*.*)|*.*|jpg files (*.jpg)|*.jpg|png files(*.png)|*.png";


                if (dialog.ShowDialog() == true)

                {


                    string path = dialog.FileName;

                    imgAddressBox.Text = path;

                }

            }

            catch { };

        }


        //检测形状判断

        private void ShapeDetect(string address, int mode)

        {

            if (circleCheckBtn.IsChecked == true)

            {

                //System.Windows.MessageBox.Show("检测圆形");

                circleTextBox.Text = HoughCircles(address, mode).ToString();

            }

            else if (recCheckBtn.IsChecked == true)

            {

                //System.Windows.MessageBox.Show("检测矩形");

                SquareDetector(address, mode);

            }

        }


        //图片检测

        private void imgDetect()

        {


            if (imgAddressBox.Text == string.Empty)

            {

                System.Windows.MessageBox.Show(

                    "图片地址为空，请选择一张图片", "警告",

                    MessageBoxButton.OK,

                    MessageBoxImage.Information

                    );

                return;

            }

            else

            {

                ShapeDetect(imgAddressBox.Text, IMAGE_MODE);

            }

        }


        //视频检测

        private void videoDetect()

        {

            try

            {

                while (true)

                {

                    this.Dispatcher.Invoke(

                        new Action(

                            delegate

                            {

                                string ip = this.videoAddress.Text;

                                ShapeDetect(ip, VIDEO_MODE);

                            }

                            ));

                }


            }

            catch { };

        }


        //判断检测为图片还是视频，开启形状检测

        private void detectBtn_Click(object sender, RoutedEventArgs e)

        {

            BoxClean();

            if (imgCheckBtn.IsChecked == true)

            {

                imgDetect();

            }

            else if (videoCheckBtn.IsChecked == true)

            {

                try

                {

                    m_thread = new Thread(new ThreadStart(videoDetect));

                    m_thread.Start();

                }

                catch { };

            }

        }


        //按esc键退出视频检测，结束线程

        private void Window_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)

        {

            if (e.Key == Key.Escape)

            {

                exitEvent.Set();

                m_thread.Join();

            }

        }


    }

}

      程序识别圆形及矩形两种形状，包括对图像以及视频中的物体的形状检测，可参考上面的演示视频进行操作。图片中物体的形状识别，文末资料下载中提供一张测试图片，然后选择图片按钮，选择要检测的圆形或者矩形，点击形状检测。

      视频中的形状识别，选择视频按钮，选择要检测的圆形或者矩形，点击形状检测，可以使用球体或者矩形状物体进行检测。

4. 资料内容