diff --git a/HeartbeatSender.cs b/HeartbeatSender.cs
new file mode 100644
index 0000000..4f138af
--- /dev/null
+++ b/HeartbeatSender.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Timers;
+namespace HeartbeatSender{
+    public class heartbeatSender
+    {
+        private readonly UdpClient udpClient;
+        private readonly IPEndPoint remoteEndPoint;
+        private readonly System.Timers.Timer heartbeatTimer;
+        public IPEndPoint RemoteEndPoint => remoteEndPoint;
+        public heartbeatSender(string targetIp, int targetPort, int intervalMilliseconds = 3000)
+        {
+            udpClient = new UdpClient();
+            // 設置 IP 和 PORT
+            remoteEndPoint = new IPEndPoint(IPAddress.Parse(targetIp), targetPort);
+            heartbeatTimer = new System.Timers.Timer(intervalMilliseconds);
+            heartbeatTimer.Elapsed += SendHeartbeat;
+            heartbeatTimer.AutoReset = true;
+        }
+        private void SendHeartbeat(object sender, ElapsedEventArgs e)
+        {
+            try
+            {
+                string heartbeatMessage = "HEARTBEAT";
+                byte[] data = Encoding.UTF8.GetBytes(heartbeatMessage);
+                udpClient.Send(data, data.Length, remoteEndPoint);
+                Console.WriteLine($"Heartbeat sent to {remoteEndPoint.Address}:{remoteEndPoint.Port}");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error sending heartbeat: {ex.Message}");
+            }
+        }
+        public void Start() => heartbeatTimer.Start();
+        public void Stop() => heartbeatTimer.Stop();
+    }
+}
\ No newline at end of file
diff --git a/PrimaryFormParts/PrimaryForm.MultiPagePanel.cs b/PrimaryFormParts/PrimaryForm.MultiPagePanel.cs
index c20854a..86a08bb 100644
--- a/PrimaryFormParts/PrimaryForm.MultiPagePanel.cs
+++ b/PrimaryFormParts/PrimaryForm.MultiPagePanel.cs
@@ -385,13 +385,13 @@ namespace DualScreenDemo
                         // 若播放公播歌單，代表已點歌曲皆已播放完畢
                         hasBeenPlayed = true;
                         songLabel.ForeColor = Color.Gray;
-                        statusText = IsSimplified ? "(播毕)" : "(播畢播畢)";
+                        statusText = IsSimplified ? "(播毕)" : "(播畢)";
                     }
                     else 
                     {
                         // 計算已完成播放的歌曲數量
                         int completedCount = currentSongIndexInHistory;
-                        Console.WriteLine("currentSongIndexInHistory:" + currentSongIndexInHistory);
+                        //Console.WriteLine("currentSongIndexInHistory:" + currentSongIndexInHistory);
                         // 遍歷已點歌曲歷史
                         /*for (int i = 0; i <= currentSongIndexInHistory && i < playedSongsHistory.Count; i++) {
                             if (i == currentSongIndexInHistory) {
@@ -414,14 +414,14 @@ namespace DualScreenDemo
                             // 已播放完成
                             hasBeenPlayed = true;
                             songLabel.ForeColor = Color.Gray;
-                            statusText = IsSimplified ? "(播毕)" : "(播畢播畢)";
+                            statusText = IsSimplified ? "(播毕)" : "(播畢)";
                         }
                         else if (songPosition == completedCount)
                         {
                             // 正在播放
                             isCurrentlyPlaying = true;
                             songLabel.ForeColor = Color.LimeGreen;
-                            statusText = IsSimplified ? "(播放中)" : "(播放中播放中)";
+                            statusText = IsSimplified ? "(播放中)" : "(播放中)";
                         }
                         else
                         {
diff --git a/TCPServer.cs b/TCPServer.cs
index 7d2e00d..641b5be 100644
--- a/TCPServer.cs
+++ b/TCPServer.cs
@@ -4,8 +4,8 @@ using System.Text;
 using System.Text.RegularExpressions;
 using System.IO; // 為 Path 和 File 提供支持
 using DBObj;
-using System.Diagnostics;
 using OverlayFormObj;
+using HeartbeatSender;
 namespace DualScreenDemo
 {
     public class TCPServer
@@ -82,6 +82,10 @@ namespace DualScreenDemo
         {
             listener.Start();
             Console.WriteLine("Server started on port " + Port + ".");
+            // 心跳封包
+            //heartbeatSender sender = new heartbeatSender("127.0.0.1", 8888);
+            //sender.Start();
+            // Console.WriteLine($"heart beat for server{sender.RemoteEndPoint.Address}:{sender.RemoteEndPoint.Port}");
             try {
                 string stateFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory,"txt","states.txt");
                 string initialState = ReadStateFile(stateFilePath);