【英语学习系统】神念科技脑电头带适配、脑电信号读取

2019-04-13 14:55发布生成海报

站内文章 / 模拟电子

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使用神念科技的脑电头带进行脑电信号的获取，用于记录学习者学习过程中的专注度放松度等指标
脑电头带：

购买头带后带有的一系列开发用的资料：

脑电头带使用蓝牙进行信号传输，首先安装千月蓝牙助手并与脑电头带建立连接

购买头戴时带有一系列的开发工具，比如一个已经集成好的图形化脑电信号的程序，下图是佩戴脑电头带后测试得到的数据图

开发包中包含一个HelloEEG程序，为一个与脑电头带进行信号传输的demo，自动进行串口查询与信号检测

源代码：

using System;

using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Reflection;

using System.IO;
using System.IO.Ports;

using NeuroSky.ThinkGear;
using NeuroSky.ThinkGear.Algorithms;
using System.Net.Sockets;
using System.Net;

namespace testprogram {
    class Program {

        static Connector connector;

        static bool golfZoneDemo = false;
        static double task_famil_baseline, task_famil_cur, task_famil_change;
        static bool task_famil_first;
        static double mental_eff_baseline, mental_eff_cur, mental_eff_change;
        static bool mental_eff_first;

        //*******************
        //socket通信,客户端
        //*******************
        byte[] data = new byte[1024];
        static Socket newclient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        static IPEndPoint ie = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 60000);//服务器的IP和端口

        public static void Main(string[] args) {


            
            while (true)
            {
                try
                {
                    //因为客户端只是用来向特定的服务器发送信息，所以不需要绑定本机的IP和端口。不需要监听。
                    newclient.Connect(ie);
                    break;
                }
                catch (SocketException e)
                {
                    Console.WriteLine("*******************unable to connect to server*****************");
                    Console.WriteLine(e.ToString());
                    return;
                }
            }
           
            //接收消息
            //int recv = newclient.Receive(data);
            //string stringdata = Encoding.ASCII.GetString(data, 0, recv);
            //Console.WriteLine(stringdata);
            //while (true)
            //{
            //    string input ="";
            //    newclient.Send(Encoding.ASCII.GetBytes(input));
                //接收消息
                //recv = newclient.Receive(data);
                //stringdata = Encoding.ASCII.GetString(data, 0, recv);
                //Console.WriteLine(stringdata);
            //}
            //Console.WriteLine("disconnect from sercer");
            //newclient.Shutdown(SocketShutdown.Both);
            //newclient.Close();






            Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
            if (assembly != null)
            {
                object[] customAttribute1 = assembly.GetCustomAttributes(typeof(AssemblyTitleAttribute), false);
                if ((customAttribute1 != null) && (customAttribute1.Length > 0))
                    Console.WriteLine(((AssemblyTitleAttribute)customAttribute1[0]).Title);
                object[] customAttribute2 = assembly.GetCustomAttributes(typeof(AssemblyCompanyAttribute), false);
                if ((customAttribute2 != null) && (customAttribute2.Length > 0))
                    Console.WriteLine(((AssemblyCompanyAttribute)customAttribute2[0]).Company);
                Console.WriteLine(assembly.GetName().Version.ToString());
            }
            AppDomain MyDomain = AppDomain.CurrentDomain;
            Assembly[] AssembliesLoaded = MyDomain.GetAssemblies();

            foreach (Assembly MyAssembly in AssembliesLoaded)
            {
                if (MyAssembly.FullName.Contains("ThinkGear"))
                    Console.WriteLine(MyAssembly.FullName);
            }


            Console.WriteLine("----------");
            if (golfZoneDemo) Console.WriteLine("Hello Golfer!");
            else Console.WriteLine("Hello EEG!");
            Console.WriteLine("----------");

            // Initialize a new Connector and add event handlers
            connector = new Connector();
            connector.DeviceConnected += new EventHandler(OnDeviceConnected);
            connector.DeviceConnectFail += new EventHandler(OnDeviceFail);
            connector.DeviceValidating += new EventHandler(OnDeviceValidating);

            // Scan for devices
            // add this one to scan 1st
            //connector.ConnectScan("COM40");
            connector.ConnectScan("COM17");

            //start the mental effort and task familiarity calculations
            if (golfZoneDemo) {
                connector.setMentalEffortEnable(false);
                connector.setTaskFamiliarityEnable(false);
                connector.setBlinkDetectionEnabled(false);
            }
            else {
                connector.enableTaskDifficulty(); //depricated
                connector.enableTaskFamiliarity(); //depricated

                connector.setMentalEffortRunContinuous(true);
                connector.setMentalEffortEnable(true);
                connector.setTaskFamiliarityRunContinuous(true);
                connector.setTaskFamiliarityEnable(true);

                connector.setBlinkDetectionEnabled(true);
            }
            task_famil_baseline = task_famil_cur = task_famil_change = 0.0;
            task_famil_first = true;
            mental_eff_baseline = mental_eff_cur = mental_eff_change = 0.0;
            mental_eff_first = true;
         
         
            Thread.Sleep(8 * 60 * 1000); // time to live for this program (8 min * 60 sec * 1000 ms)

            Console.WriteLine("----------"); 
            if (golfZoneDemo) Console.WriteLine("Time is up. Goodbye from Golf Zone sample program!");
            else Console.WriteLine("Time is up. Goodbye from EEG sample program!");
            Console.WriteLine("----------");

            // Close all open connections
            connector.Close();

            Thread.Sleep(10 * 1000); // delay long enough for a human to see the message (10 sec * 1000 ms)

            Environment.Exit(0);
        }

       
        /**
         * Called when a device is connected 
         */
        static void OnDeviceConnected(object sender, EventArgs e) {
            Connector.DeviceEventArgs de = (Connector.DeviceEventArgs)e;

            Console.WriteLine("Device found on: " + de.Device.PortName);

            de.Device.DataReceived += new EventHandler(OnDataReceived);
        }

        /**
         * Called when scanning fails
         */
        static void OnDeviceFail(object sender, EventArgs e) {
            Console.WriteLine("No devices found! :(");
        }

        /**
         * Called when each port is being validated
         */ 
        static void OnDeviceValidating(object sender, EventArgs e) {
            Console.WriteLine("Validating: ");
        }

        static byte rcv_poorSignal_last = 255; // start with impossible value
        static byte rcv_poorSignal;
        static byte rcv_poorSig_cnt = 0;

        /**
         * Called when data is received from a device
         */
        static void OnDataReceived(object sender, EventArgs e) {
            //Device d = (Device)sender;
            Device.DataEventArgs de = (Device.DataEventArgs)e;
            DataRow[] tempDataRowArray = de.DataRowArray;

            TGParser tgParser = new TGParser();
            tgParser.Read(de.DataRowArray);
            
            /* Loop through new parsed data */
            for (int i = 0; i < tgParser.ParsedData.Length; i++)
            {
                if (tgParser.ParsedData[i].ContainsKey("MSG_MODEL_IDENTIFIED"))
                {
                    Console.WriteLine("Model Identified");

                    
                    connector.setMentalEffortRunContinuous(true);
                    connector.setMentalEffortEnable(true);
                    connector.setTaskFamiliarityRunContinuous(true);
                    connector.setTaskFamiliarityEnable(true);
                    connector.setPositivityEnable(false);
                    //
                    // the following are included to demonstrate the overide messages
                    //
                    connector.setRespirationRateEnable(true); // not allowed with EEG
                    connector.setPositivityEnable(true);// not allowed when famil/diff are enabled
               }
                if (tgParser.ParsedData[i].ContainsKey("MSG_ERR_CFG_OVERRIDE"))
                {
                    Console.WriteLine("ErrorConfigurationOverride: " + tgParser.ParsedData[i]["MSG_ERR_CFG_OVERRIDE"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("MSG_ERR_NOT_PROVISIONED"))
                {
                    Console.WriteLine("ErrorModuleNotProvisioned: " + tgParser.ParsedData[i]["MSG_ERR_NOT_PROVISIONED"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("TimeStamp"))
                {
                    //Console.WriteLine("TimeStamp");
                }
                if (tgParser.ParsedData[i].ContainsKey("Raw"))
                {
                    //Console.WriteLine("Raw: " + tgParser.ParsedData[i]["Raw"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RespiratoryRate")) {
                    Console.WriteLine("RespiratoryRate: " + tgParser.ParsedData[i]["RespiratoryRate"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RawCh1"))
                {
                    //Console.WriteLine("RawCh1: " + tgParser.ParsedData[i]["RawCh1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RawCh2"))
                {
                    //Console.Write(", Raw Ch2:" + tgParser.ParsedData[i]["RawCh2"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("PoorSignal"))
                {
                    // NOTE: this doesn't work well with BMD sensors Dual Headband or CardioChip

                    rcv_poorSignal = (byte)tgParser.ParsedData[i]["PoorSignal"];
                    if (rcv_poorSignal != rcv_poorSignal_last || rcv_poorSig_cnt >= 30)
                    {
                        // when there is a change of state OR every 30 reports
                        rcv_poorSig_cnt = 0; // reset counter
                        rcv_poorSignal_last = rcv_poorSignal;
                        if (rcv_poorSignal == 0)
                        {
                            // signal is good, we are connected to a subject
                            Console.WriteLine("SIGNAL: we have good contact with the subject");
                        }
                        else
                        {
                            Console.WriteLine("SIGNAL: is POOR: " + rcv_poorSignal);
                        }
                    }
                    else rcv_poorSig_cnt++;
                }
                if (tgParser.ParsedData[i].ContainsKey("Attention"))
                {
                    if (tgParser.ParsedData[i]["Attention"] != 0)
                    {
                       // Console.WriteLine("测试数据Attention*****************" + tgParser.ParsedData[i]["Attention"]);
                       Console.WriteLine("Attention : " + tgParser.ParsedData[i]["Attention"]);
                        string Attention = tgParser.ParsedData[i]["Attention"].ToString();
                        newclient.Send(Encoding.ASCII.GetBytes(Attention));
                        Console.WriteLine("*****************************传输："+Attention);

                    }

                }
                if (tgParser.ParsedData[i].ContainsKey("Attention 1"))
                {
                    if (tgParser.ParsedData[i]["Attention 1"] != 0) Console.WriteLine("Attention 1: " + tgParser.ParsedData[i]["Attention 1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Attention 2"))
                {
                    if (tgParser.ParsedData[i]["Attention 2"] != 0) Console.WriteLine("Attention 2: " + tgParser.ParsedData[i]["Attention 2"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation"))
                {
                    if (tgParser.ParsedData[i]["Meditation"] != 0) Console.WriteLine("Meditation: " + tgParser.ParsedData[i]["Meditation"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation 1"))
                {
                    if (tgParser.ParsedData[i]["Meditation 1"] != 0) Console.WriteLine("Meditation 1: " + tgParser.ParsedData[i]["Meditation 1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation 2"))
                {
                    if (tgParser.ParsedData[i]["Meditation 2"] != 0) Console.WriteLine("Meditation 2: " + tgParser.ParsedData[i]["Meditation 2"]);
                }
                if (!golfZoneDemo) // turn this off for the Golf Zone Demo
                {
                    if (tgParser.ParsedData[i].ContainsKey("BlinkStrength"))
                    {
                        Console.WriteLine("		BlinkStrength: " + tgParser.ParsedData[i]["BlinkStrength"]);
                    }

                    if (tgParser.ParsedData[i].ContainsKey("MentalEffort")) {
                        mental_eff_cur = (Double)tgParser.ParsedData[i]["MentalEffort"];
                        if (mental_eff_first) {
                            mental_eff_first = false;
                        }
                        else {
                            /*
                             * calculate the percentage change from the previous sample
                             */
                            mental_eff_change = calcPercentChange(mental_eff_baseline, mental_eff_cur);
                            if (mental_eff_change > 500.0 || mental_eff_change < -500.0) {
                                Console.WriteLine("		Mental Effort: excessive range");
                            }
                            else {
                                Console.WriteLine("		Mental Effort: " + mental_eff_change + " %");
                            }
                        }
                        mental_eff_baseline = mental_eff_cur;
                    }

                    if (tgParser.ParsedData[i].ContainsKey("TaskFamiliarity")) {
                        task_famil_cur = (Double)tgParser.ParsedData[i]["TaskFamiliarity"];
                        if (task_famil_first) {
                            task_famil_first = false;
                        }
                        else {
                            /*
                             * calculate the percentage change from the previous sample
                             */
                            task_famil_change = calcPercentChange(task_famil_baseline, task_famil_cur);
                            if (task_famil_change > 500.0 || task_famil_change < -500.0) {
                                Console.WriteLine("		Task Familiarity: excessive range");
                            }
                            else {
                                Console.WriteLine("		Task Familiarity: " + task_famil_change + " %");
                            }
                        }
                        task_famil_baseline = task_famil_cur;
                    }

                    if (tgParser.ParsedData[i].ContainsKey("Positivity"))
                    {
                        Console.WriteLine("		Positivity: " + tgParser.ParsedData[i]["Positivity"]);
                    }
                }
                if (golfZoneDemo)
                {
                    if (tgParser.ParsedData[i].ContainsKey("ReadyZone"))
                    {

                        Console.Write("		GolfZone: ");
                        if (tgParser.ParsedData[i]["ReadyZone"] == 3)
                        {
                            Console.WriteLine("Elite: you are the best, putt when you are ready");
                        }
                        else if (tgParser.ParsedData[i]["ReadyZone"] == 2)
                        {
                            Console.WriteLine("Intermediate: you are good, relax and putt smoothly");
                        }
                        else if (tgParser.ParsedData[i]["ReadyZone"] == 1)
                        {
                            Console.WriteLine("Beginner: take a breath and don't rush");
                        }
                        else
                        {
                            Console.WriteLine("Try to relax, focus on your target");
                        }
                    }
                }
            }
        }



        static double calcPercentChange(double baseline, double current)
        {
            double change;

            if (baseline == 0.0) baseline = 1.0; //don't allow divide by zero
            /*
             * calculate the percentage change
             */
            change = current - baseline;
            change = (change / baseline) * 1000.0 + 0.5;
            change = Math.Floor(change) / 10.0;
            return (change);
        }
    }
}

下面为更改后的代码，与demo相比将专注度以及放松的的值获取后保存在文件中，方便Unity脚本读取数据并显示到系统中

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Reflection;
using System.IO;
using NeuroSky.ThinkGear;
using System.ComponentModel;
 

namespace testprogram
{
    class Program {

        static Connector connector;
        static string text;
        static bool golfZoneDemo = false;
        static double task_famil_baseline, task_famil_cur, task_famil_change;
        static bool task_famil_first;
        static double mental_eff_baseline, mental_eff_cur, mental_eff_change;
        static bool mental_eff_first;
        public int count1=0, count2=0;
        public float sum1=0, sum2=0;

        public static void Main(string[] args) {

            Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
            if (assembly != null)
            {
                object[] customAttribute1 = assembly.GetCustomAttributes(typeof(AssemblyTitleAttribute), false);
                if ((customAttribute1 != null) && (customAttribute1.Length > 0))
                    Console.WriteLine(((AssemblyTitleAttribute)customAttribute1[0]).Title);
                object[] customAttribute2 = assembly.GetCustomAttributes(typeof(AssemblyCompanyAttribute), false);
                if ((customAttribute2 != null) && (customAttribute2.Length > 0))
                    Console.WriteLine(((AssemblyCompanyAttribute)customAttribute2[0]).Company);
                Console.WriteLine(assembly.GetName().Version.ToString());
            }
            AppDomain MyDomain = AppDomain.CurrentDomain;
            Assembly[] AssembliesLoaded = MyDomain.GetAssemblies();

            foreach (Assembly MyAssembly in AssembliesLoaded)
            {
                if (MyAssembly.FullName.Contains("ThinkGear"))
                    Console.WriteLine(MyAssembly.FullName);
            }


            Console.WriteLine("----------");
            if (golfZoneDemo) Console.WriteLine("Hello Golfer!");
            else Console.WriteLine("Hello EEG!");
            Console.WriteLine("----------");

            // Initialize a new Connector and add event handlers
            connector = new Connector();
            connector.DeviceConnected += new EventHandler(OnDeviceConnected);
            connector.DeviceConnectFail += new EventHandler(OnDeviceFail);
            connector.DeviceValidating += new EventHandler(OnDeviceValidating);

            // Scan for devices
            // add this one to scan 1st
            //connector.ConnectScan("COM40");
            connector.ConnectScan("COM3");

            //start the mental effort and task familiarity calculations
            if (golfZoneDemo) {
                connector.setMentalEffortEnable(false);
                connector.setTaskFamiliarityEnable(false);
                connector.setBlinkDetectionEnabled(false);
            }
            else {
                connector.enableTaskDifficulty(); //depricated
                connector.enableTaskFamiliarity(); //depricated

                connector.setMentalEffortRunContinuous(true);
                connector.setMentalEffortEnable(true);
                connector.setTaskFamiliarityRunContinuous(true);
                connector.setTaskFamiliarityEnable(true);

                connector.setBlinkDetectionEnabled(true);
            }
            task_famil_baseline = task_famil_cur = task_famil_change = 0.0;
            task_famil_first = true;
            mental_eff_baseline = mental_eff_cur = mental_eff_change = 0.0;
            mental_eff_first = true;
         
         
            Thread.Sleep(28 * 60 * 1000); // time to live for this program (8 min * 60 sec * 1000 ms)

            Console.WriteLine("----------"); 
            if (golfZoneDemo) Console.WriteLine("Time is up. Goodbye from Golf Zone sample program!");
            else Console.WriteLine("Time is up. Goodbye from EEG sample program!");
            Console.WriteLine("----------");

            // Close all open connections
            connector.Close();

            Thread.Sleep(10 * 1000); // delay long enough for a human to see the message (10 sec * 1000 ms)

            Environment.Exit(0);
            Console.ReadLine();
        }

       
        /**
         * Called when a device is connected 
         */
        static void OnDeviceConnected(object sender, EventArgs e) {
            Connector.DeviceEventArgs de = (Connector.DeviceEventArgs)e;

            Console.WriteLine("Device found on: " + de.Device.PortName);

            de.Device.DataReceived += new EventHandler(OnDataReceived);
        }

        /**
         * Called when scanning fails
         */
        static void OnDeviceFail(object sender, EventArgs e) {
            Console.WriteLine("No devices found! :(");
        }

        /**
         * Called when each port is being validated
         */ 
        static void OnDeviceValidating(object sender, EventArgs e) {
            Console.WriteLine("Validating: ");
        }

        static byte rcv_poorSignal_last = 255; // start with impossible value
        static byte rcv_poorSignal;
        static byte rcv_poorSig_cnt = 0;

        /**
         * Called when data is received from a device
         */
        static void OnDataReceived(object sender, EventArgs e) {
            //Device d = (Device)sender;
            Device.DataEventArgs de = (Device.DataEventArgs)e;
            DataRow[] tempDataRowArray = de.DataRowArray;

            TGParser tgParser = new TGParser();
            tgParser.Read(de.DataRowArray);

            int count1 = 0, count2 = 0;
            double sum1 = 0, sum2 = 0;
            /* Loop through new parsed data */
            for (int i = 0; i < tgParser.ParsedData.Length; i++)
            {
                if (tgParser.ParsedData[i].ContainsKey("MSG_MODEL_IDENTIFIED"))
                {
                    Console.WriteLine("Model Identified");

                    
                    connector.setMentalEffortRunContinuous(true);
                    connector.setMentalEffortEnable(true);
                    connector.setTaskFamiliarityRunContinuous(true);
                    connector.setTaskFamiliarityEnable(true);
                    connector.setPositivityEnable(false);
                    //
                    // the following are included to demonstrate the overide messages
                    //
                    connector.setRespirationRateEnable(true); // not allowed with EEG
                    connector.setPositivityEnable(true);// not allowed when famil/diff are enabled
               }
                if (tgParser.ParsedData[i].ContainsKey("MSG_ERR_CFG_OVERRIDE"))
                {
                    Console.WriteLine("ErrorConfigurationOverride: " + tgParser.ParsedData[i]["MSG_ERR_CFG_OVERRIDE"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("MSG_ERR_NOT_PROVISIONED"))
                {
                    Console.WriteLine("ErrorModuleNotProvisioned: " + tgParser.ParsedData[i]["MSG_ERR_NOT_PROVISIONED"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("TimeStamp"))
                {
                    //Console.WriteLine("TimeStamp");
                }
                if (tgParser.ParsedData[i].ContainsKey("Raw"))
                {
                    //Console.WriteLine("Raw: " + tgParser.ParsedData[i]["Raw"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RespiratoryRate")) {
                    Console.WriteLine("RespiratoryRate: " + tgParser.ParsedData[i]["RespiratoryRate"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RawCh1"))
                {
                    //Console.WriteLine("RawCh1: " + tgParser.ParsedData[i]["RawCh1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("RawCh2"))
                {
                    //Console.Write(", Raw Ch2:" + tgParser.ParsedData[i]["RawCh2"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("PoorSignal"))
                {
                    // NOTE: this doesn't work well with BMD sensors Dual Headband or CardioChip

                    rcv_poorSignal = (byte)tgParser.ParsedData[i]["PoorSignal"];
                    if (rcv_poorSignal != rcv_poorSignal_last || rcv_poorSig_cnt >= 30)
                    {
                        // when there is a change of state OR every 30 reports
                        rcv_poorSig_cnt = 0; // reset counter
                        rcv_poorSignal_last = rcv_poorSignal;
                        if (rcv_poorSignal == 0)
                        {
                            // signal is good, we are connected to a subject
                            Console.WriteLine("SIGNAL: we have good contact with the subject");
                        }
                        else
                        {
                            Console.WriteLine("SIGNAL: is POOR: " + rcv_poorSignal);
                        }
                    }
                    else rcv_poorSig_cnt++;
                }
                if (tgParser.ParsedData[i].ContainsKey("Attention"))
                {
                    if (tgParser.ParsedData[i]["Attention"] != 0)
                        {
                            Console.WriteLine("Attention : " + tgParser.ParsedData[i]["Attention"]);
                             text+= tgParser.ParsedData[i]["Attention"];
                            Stream stream = File.Open("E:\项目文档\TestTxt.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                            StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                            sw.WriteLine(tgParser.ParsedData[i]["Attention"]);
                        sum1 += tgParser.ParsedData[i]["Attention"];
                        count1++;
                        sw.Flush();
                            sw.Close();
                    }
                    
                }
                
                //各种参数采集
                //if (tgParser.ParsedData[i].ContainsKey("Raw"))
                //{
                //    Console.WriteLine("Raw : " + tgParser.ParsedData[i]["Raw"]);
                //    text += tgParser.ParsedData[i]["Raw"];
                //    Stream stream = File.Open("E:\Raw.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["Raw"]);
                //    sw.Flush();
                //    sw.Close();
                //}

                //if (tgParser.ParsedData[i].ContainsKey("EegPowerDelta"))
                //{
                //    Console.WriteLine("EegPowerDelta : " + tgParser.ParsedData[i]["EegPowerDelta"]);
                //    text += tgParser.ParsedData[i]["EegPowerDelta"];
                //    Stream stream = File.Open("E:\EegPowerDelta.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerDelta"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerTheta"))
                //{
                //    Console.WriteLine("EegPowerTheta : " + tgParser.ParsedData[i]["EegPowerTheta"]);
                //    text += tgParser.ParsedData[i]["EegPowerTheta"];
                //    Stream stream = File.Open("E:\EegPowerTheta.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerTheta"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerAlpha2"))
                //{
                //    Console.WriteLine("EegPowerAlpha2 : " + tgParser.ParsedData[i]["EegPowerAlpha2"]);
                //    text += tgParser.ParsedData[i]["EegPowerAlpha2"];
                //    Stream stream = File.Open("E:\EegPowerAlpha2.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerAlpha2"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerAlpha1"))
                //{
                //    Console.WriteLine("EegPowerAlpha1 : " + tgParser.ParsedData[i]["EegPowerAlpha1"]);
                //    text += tgParser.ParsedData[i]["EegPowerAlpha1"];
                //    Stream stream = File.Open("E:\EegPowerAlpha1.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerAlpha1"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerBeta1"))
                //{
                //    Console.WriteLine("EegPowerBeta1 : " + tgParser.ParsedData[i]["EegPowerBeta1"]);
                //    text += tgParser.ParsedData[i]["EegPowerBeta1"];
                //    Stream stream = File.Open("E:\EegPowerBeta1.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerBeta1"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerBeta2"))
                //{
                //    Console.WriteLine("EegPowerBeta2 : " + tgParser.ParsedData[i]["EegPowerBeta2"]);
                //    text += tgParser.ParsedData[i]["EegPowerBeta2"];
                //    Stream stream = File.Open("E:\EegPowerBeta2.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerBeta2"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerGamma1"))
                //{
                //    Console.WriteLine("EegPowerGamma1 : " + tgParser.ParsedData[i]["EegPowerGamma1"]);
                //    text += tgParser.ParsedData[i]["EegPowerGamma1"];
                //    Stream stream = File.Open("E:\EegPowerGamma1.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerGamma1"]);
                //    sw.Flush();
                //    sw.Close();
                //}
                //if (tgParser.ParsedData[i].ContainsKey("EegPowerGamma2"))
                //{
                //    Console.WriteLine("EegPowerGamma2 : " + tgParser.ParsedData[i]["EegPowerGamma2"]);
                //    text += tgParser.ParsedData[i]["EegPowerGamma2"];
                //    Stream stream = File.Open("E:\EegPowerGamma2.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                //    StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                //    sw.WriteLine(tgParser.ParsedData[i]["EegPowerGamma2"]);

                //    sw.Flush();
                //    sw.Close();
                //}
                if (tgParser.ParsedData[i].ContainsKey("Attention 1"))
                {
                    if (tgParser.ParsedData[i]["Attention 1"] != 0) Console.WriteLine("Attention 1: " + tgParser.ParsedData[i]["Attention 1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Attention 2"))
                {
                    if (tgParser.ParsedData[i]["Attention 2"] != 0) Console.WriteLine("Attention 2: " + tgParser.ParsedData[i]["Attention 2"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation"))
                {
                    if (tgParser.ParsedData[i]["Meditation"] != 0)
                    {
                        Console.WriteLine("Meditation: " + tgParser.ParsedData[i]["Meditation"]);
                        text += tgParser.ParsedData[i]["Meditation"];
                        Stream stream = File.Open("E:\项目文档\TestTxt1.txt", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                        StreamWriter sw = new StreamWriter(stream, Encoding.Default);
                        sw.WriteLine(tgParser.ParsedData[i]["Meditation"]);
                        sum2 += tgParser.ParsedData[i]["Meditation"];
                        count2++;
                        sw.Flush();
                        sw.Close();
                    }
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation 1"))
                {
                    if (tgParser.ParsedData[i]["Meditation 1"] != 0) Console.WriteLine("Meditation 1: " + tgParser.ParsedData[i]["Meditation 1"]);
                }
                if (tgParser.ParsedData[i].ContainsKey("Meditation 2"))
                {
                    if (tgParser.ParsedData[i]["Meditation 2"] != 0) Console.WriteLine("Meditation 2: " + tgParser.ParsedData[i]["Meditation 2"]);
                }
                if (!golfZoneDemo) // turn this off for the Golf Zone Demo
                {
                    if (tgParser.ParsedData[i].ContainsKey("BlinkStrength"))
                    {
                        Console.WriteLine("		BlinkStrength: " + tgParser.ParsedData[i]["BlinkStrength"]);
                    }

                    if (tgParser.ParsedData[i].ContainsKey("MentalEffort")) {
                        mental_eff_cur = (Double)tgParser.ParsedData[i]["MentalEffort"];
                        if (mental_eff_first) {
                            mental_eff_first = false;
                        }
                        else {
                            /*
                             * calculate the percentage change from the previous sample
                             */
                            mental_eff_change = calcPercentChange(mental_eff_baseline, mental_eff_cur);
                            if (mental_eff_change > 500.0 || mental_eff_change < -500.0) {
                                Console.WriteLine("		Mental Effort: excessive range");
                            }
                            else {
                                Console.WriteLine("		Mental Effort: " + mental_eff_change + " %");
                            }
                        }
                        mental_eff_baseline = mental_eff_cur;
                    }

                    if (tgParser.ParsedData[i].ContainsKey("TaskFamiliarity")) {
                        task_famil_cur = (Double)tgParser.ParsedData[i]["TaskFamiliarity"];
                        if (task_famil_first) {
                            task_famil_first = false;
                        }
                        else {
                            /*
                             * calculate the percentage change from the previous sample
                             */
                            task_famil_change = calcPercentChange(task_famil_baseline, task_famil_cur);
                            if (task_famil_change > 500.0 || task_famil_change < -500.0) {
                                Console.WriteLine("		Task Familiarity: excessive range");
                            }
                            else {
                                Console.WriteLine("		Task Familiarity: " + task_famil_change + " %");
                            }
                        }
                        task_famil_baseline = task_famil_cur;
                    }

                    if (tgParser.ParsedData[i].ContainsKey("Positivity"))
                    {
                        Console.WriteLine("		Positivity: " + tgParser.ParsedData[i]["Positivity"]);
                    }
                }
                if (golfZoneDemo)
                {
                    if (tgParser.ParsedData[i].ContainsKey("ReadyZone"))
                    {

                        Console.Write("		GolfZone: ");
                        if (tgParser.ParsedData[i]["ReadyZone"] == 3)
                        {
                            Console.WriteLine("Elite: you are the best, putt when you are ready");
                        }
                        else if (tgParser.ParsedData[i]["ReadyZone"] == 2)
                        {
                            Console.WriteLine("Intermediate: you are good, relax and putt smoothly");
                        }
                        else if (tgParser.ParsedData[i]["ReadyZone"] == 1)
                        {
                            Console.WriteLine("Beginner: take a breath and don't rush");
                        }
                        else
                        {
                            Console.WriteLine("Try to relax, focus on your target");
                        }
                    }
                }
            }
           

        }

        
        private void MainWindow_Closing(object sender, CancelEventArgs e)
        { 
            StreamWriter sw = new StreamWriter("E:\physicalSignal.txt");
            sw.WriteLine("Attention的均值"+sum1/count1+","+ "Meditation的均值" + sum2 / count2);
            
        }

        static double calcPercentChange(double baseline, double current)
        {
            double change;

            if (baseline == 0.0) baseline = 1.0; //don't allow divide by zero
            /*
             * calculate the percentage change
             */
            change = current - baseline;
            change = (change / baseline) * 1000.0 + 0.5;
            change = Math.Floor(change) / 10.0;
            return (change);
        }
    }
}

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