diff --git a/server/server.csproj b/server/server.csproj
index a0b561d..af9d95c 100644
--- a/server/server.csproj
+++ b/server/server.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.OpenApi" Version="1.6.23" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="8.0.0" />
   </ItemGroup>
 
diff --git a/server/src/LabProtocol.cs b/server/src/LabProtocol.cs
deleted file mode 100644
index e69de29..0000000
diff --git a/server/src/UdpClientPool.cs b/server/src/UdpClientPool.cs
index bd991d3..1557af1 100644
--- a/server/src/UdpClientPool.cs
+++ b/server/src/UdpClientPool.cs
@@ -6,9 +6,29 @@ class UDPClientPool
 {
     private static IPAddress localhost = IPAddress.Parse("127.0.0.1");
 
-    public UDPClientPool()
+    public static void SendString(IPEndPoint endPoint, string[] stringArray)
     {
+        Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
 
+        byte[] sendbuf = Encoding.ASCII.GetBytes(stringArray[0]);
+
+        socket.SendTo(sendbuf, endPoint);
+    }
+
+    public async static void AsyncSendString(IPEndPoint endPoint, string[] stringArray)
+    {
+        await Task.Run(() => { SendString(endPoint, stringArray); });
+    }
+
+    public static void SendBytes(IPEndPoint endPoint, byte[] buf)
+    {
+        Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
+        socket.SendTo(buf, endPoint);
+    }
+
+    public async static void AsyncSendBytes(IPEndPoint endPoint, byte[] buf)
+    {
+        await Task.Run(() => { SendBytes(endPoint, buf); });
     }
 
     public static void SendLocalHost(int port, string[] stringArray)
@@ -34,8 +54,4 @@ class UDPClientPool
             Thread.Sleep(sleepMilliSeconds);
         }
     }
-
-    public void Start()
-    {
-    }
 }
diff --git a/server/src/WebProtocol.cs b/server/src/WebProtocol.cs
new file mode 100644
index 0000000..1573d06
--- /dev/null
+++ b/server/src/WebProtocol.cs
@@ -0,0 +1,50 @@
+namespace WebProtocol
+{
+
+    public enum PackSign
+    {
+        SendAddr = 0x00,
+        SendData = 0xFF,
+        RecvData = 0x0F,
+        RecvResp = 0xF0,
+    }
+
+    public enum BurstType
+    {
+        ExtendBurst = 0b00,
+        FixedBurst = 0b01,
+    }
+
+    public struct SendAddrPackage
+    {
+        readonly byte Sign = (byte)PackSign.SendAddr;
+        readonly byte commandType;
+        readonly byte burstLength;
+        readonly byte _reserved;
+        readonly UInt32 address;
+
+
+        public SendAddrPackage(BurstType burstType, byte commandID, bool isWrite)
+        {
+            commandType = (
+                ((byte)burstType << 5) |
+                ((commandID & (byte)0x03) << 3) |
+                (isWrite ? (byte)0x01 : (byte)0x00)
+                    );
+        }
+
+        public void toBytes()
+        {
+
+        }
+    }
+
+    public struct RecvRackage
+    {
+
+        public void toBytes()
+        {
+
+        }
+    }
+}