diff --git a/PlaneGcsSdk.Contract_Shared/Copters/ICopter.cs b/PlaneGcsSdk.Contract_Shared/Copters/ICopter.cs
index d4c4a61..63282e1 100644
--- a/PlaneGcsSdk.Contract_Shared/Copters/ICopter.cs
+++ b/PlaneGcsSdk.Contract_Shared/Copters/ICopter.cs
@@ -2,7 +2,7 @@
 
 namespace Plane.Copters
 {
-    public partial interface ICopter : ICopterStatus, ICopterEvents, ICopterActions, ICopterCommunication, INotifyPropertyChanged, ICopterAttribute
+    public partial interface ICopter : ICopterStatus, ICopterEvents, ICopterVirtualId, ICopterActions, ICopterCommunication, INotifyPropertyChanged, ICopterAttribute
     {
        
     }
diff --git a/PlaneGcsSdk.Contract_Shared/Copters/IVisibleStatus.cs b/PlaneGcsSdk.Contract_Shared/Copters/IVisibleStatus.cs
index 379184a..0a8489c 100644
--- a/PlaneGcsSdk.Contract_Shared/Copters/IVisibleStatus.cs
+++ b/PlaneGcsSdk.Contract_Shared/Copters/IVisibleStatus.cs
@@ -10,6 +10,6 @@ namespace Plane.Copters
         /// <summary>
         /// 获取名称。
         /// </summary>
-        string Name { get; }
+        string Name { get; set; }
     }
 }
diff --git a/PlaneGcsSdk.Contract_Shared/PlaneGcsSdk.Contract_Shared.projitems b/PlaneGcsSdk.Contract_Shared/PlaneGcsSdk.Contract_Shared.projitems
index f92db2d..7764b35 100644
--- a/PlaneGcsSdk.Contract_Shared/PlaneGcsSdk.Contract_Shared.projitems
+++ b/PlaneGcsSdk.Contract_Shared/PlaneGcsSdk.Contract_Shared.projitems
@@ -22,6 +22,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Copters\CopterCommand.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Copters\CopterState.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Copters\ICopterAttribute.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Copters\ICopterVirtualId.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Copters\PLObservableObject.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Copters\FlightCommand.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Copters\GpsFixType.cs" />
diff --git a/PlaneGcsSdk_Shared/CommunicationManagement/CommModule.cs b/PlaneGcsSdk_Shared/CommunicationManagement/CommModule.cs
index 74652b2..196479f 100644
--- a/PlaneGcsSdk_Shared/CommunicationManagement/CommModule.cs
+++ b/PlaneGcsSdk_Shared/CommunicationManagement/CommModule.cs
@@ -413,6 +413,23 @@ namespace Plane.CommunicationManagement
         /// <returns></returns>
         public async Task WriteCommPacketAsync(short copterId, short messageType, byte[] data = null, byte[] batchPacket = null)
         {
+            if (messageType == MavComm.COMM_DOWNLOAD_COMM && copterId == 0)
+            {
+                short byteNum;
+                short length;
+                if (batchPacket == null)
+                {
+                    byteNum = 0;
+                    length = (short)((0x5 << 12) ^ byteNum);
+                    batchPacket = BitConverter.GetBytes(length);
+                }
+                else
+                {
+                    byteNum = (short)(batchPacket.Length / 2);
+                    length = (short)((0x5 << 12) ^ byteNum);
+                    batchPacket = BitConverter.GetBytes(length).Concat(batchPacket).ToArray();
+                }
+            }
             if (data != null &&  batchPacket != null) data = batchPacket.Concat(data).ToArray();
 
             int packetlength = data == null ? 0 : data.Length;
@@ -466,11 +483,13 @@ namespace Plane.CommunicationManagement
         {
             int dataLength = 6 + 2 + indata.Length * 32;
             byte[] data = new byte[dataLength];
+            Int16 countNum = (Int16)indata.Length;
+
+            byte[] uses = new byte[] { 0, 1, 0, 0, 0, 0 };
 
-            byte[] uses = new byte[] { 0, 0, 1, 0, 0, 0 };
             Array.Copy(uses, 0, data, 0, 6);
 
-            Int16 countNum = (Int16)indata.Length;
+            Array.Copy(BitConverter.GetBytes(countNum), 0, data, 2, 2);
             Array.Copy(BitConverter.GetBytes(countNum), 0, data, 6, 2);
 
             int offset = 8;
diff --git a/PlaneGcsSdk_Shared/Copters/CopterImplSharedPart.cs b/PlaneGcsSdk_Shared/Copters/CopterImplSharedPart.cs
index ae5a138..0a498fc 100644
--- a/PlaneGcsSdk_Shared/Copters/CopterImplSharedPart.cs
+++ b/PlaneGcsSdk_Shared/Copters/CopterImplSharedPart.cs
@@ -169,6 +169,11 @@ namespace Plane.Copters
 
         private double _RecordLng;
 
+
+        private int _VirtualId;
+
+        private bool _DisplayVirtualId = false;
+
         #endregion Backing Fields
 
         public CopterImplSharedPart(SynchronizationContext uiSyncContext) : base(uiSyncContext)
@@ -394,6 +399,20 @@ namespace Plane.Copters
             protected set { Set(nameof(Elevation), ref _Elevation, value); }
         }
 
+        public int VirtualId
+        {
+            get { return _VirtualId; }
+            set { Set(nameof(VirtualId), ref _VirtualId, value); }
+        }
+
+        public bool DisplayVirtualId
+        {
+            get { return _DisplayVirtualId; }
+            set { Set(nameof(DisplayVirtualId), ref _DisplayVirtualId, value); }
+        }
+
+        
+
         /// <summary>
         /// 获取固件版本。
         /// </summary>
@@ -597,7 +616,6 @@ namespace Plane.Copters
 
         public string Name { get; set; }
 
-
         public float Pitch
         {
             get { return _Pitch; }