diff --git a/src/JT809.Protocol.Test/JT809MessageBody/JT809_0x1102Test.cs b/src/JT809.Protocol.Test/JT809MessageBody/JT809_0x1102Test.cs
new file mode 100644
index 0000000..a2b7fb2
--- /dev/null
+++ b/src/JT809.Protocol.Test/JT809MessageBody/JT809_0x1102Test.cs
@@ -0,0 +1,67 @@
+using JT808.Protocol.Extensions;
+using JT809.Protocol.Enums;
+using JT809.Protocol.Internal;
+using JT809.Protocol.MessageBody;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Xunit;
+
+namespace JT809.Protocol.Test.JT809MessageBody
+{
+    public class JT809_0x1102Test
+    {
+        private JT809Serializer JT809_2019_Serializer = new JT809Serializer(new DefaultGlobalConfig() { Version = JT809Version.JTT2019 });
+        [Fact]
+        public void Test1()
+        {
+            var bytes = "5B0000004C000000011102000027660000000000000000000000005F0596041102000000243330303030313233343500000000005F059604000000005F059604000000000A0000001E17B45D".ToHexBytes();
+            JT809Package jT809Package = JT809_2019_Serializer.Deserialize(bytes);
+
+            Assert.Equal((uint)1, jT809Package.Header.MsgSN);
+            Assert.Equal((ushort)0x1102, jT809Package.Header.BusinessType);
+            Assert.Equal((uint)10086, jT809Package.Header.MsgGNSSCENTERID);
+            Assert.Equal((uint)76, jT809Package.Header.MsgLength);
+            Assert.Equal("0.0.0", jT809Package.Header.Version.ToString());
+            Assert.Equal(DateTime.Parse("2020-07-08 17:46:44"), jT809Package.Header.Time);
+
+            var body = jT809Package.Bodies as JT809_0x1102;
+            Assert.NotNull(body);
+            Assert.Equal((ushort)0x1102, body.MsgId);
+            Assert.Equal((uint)36, body.DataLength);
+            Assert.Equal("3000012345", body.PlateformId);
+            Assert.Equal(DateTime.Parse("2020-07-08 17:46:44"), body.StartTime);
+            Assert.Equal(DateTime.Parse("2020-07-08 17:46:44"), body.EndTime);
+            Assert.Equal((uint)0, body.LoseDymamicSum);
+            Assert.Equal((byte)10, body.DisconnectNum);
+            Assert.Equal((uint)30, body.DisconnectTime);
+        }
+
+        [Fact]
+        public void Test2()
+        {
+            var package = new JT809Package
+            {
+                Header = new JT809Header
+                {
+                    BusinessType = 0x1102,
+                    MsgGNSSCENTERID = 10086,
+                    Time = DateTime.Parse("2020-07-08 17:46:44"),
+                    Version = new JT809Header_Version(0, 0, 0),
+                },
+                Bodies = new JT809_0x1102
+                {
+                    SubBusinessType = 0x1102,
+                    DataLength = 36,
+                    PlateformId = "3000012345",
+                    StartTime = DateTime.Parse("2020-07-08 17:46:44"),
+                    EndTime = DateTime.Parse("2020-07-08 17:46:44"),
+                    LoseDymamicSum = 0,
+                    DisconnectNum = 10,
+                    DisconnectTime = 30,
+                }
+            };
+            Assert.Equal("5B0000004C000000011102000027660000000000000000000000005F0596041102000000243330303030313233343500000000005F059604000000005F059604000000000A0000001E17B45D", JT809_2019_Serializer.Serialize(package).ToHexString());
+        }
+    }
+}
diff --git a/src/JT809.Protocol/MessageBody/JT809_0x1102.cs b/src/JT809.Protocol/MessageBody/JT809_0x1102.cs
index 75e60de..f6a5b56 100644
--- a/src/JT809.Protocol/MessageBody/JT809_0x1102.cs
+++ b/src/JT809.Protocol/MessageBody/JT809_0x1102.cs
@@ -55,8 +55,12 @@ namespace JT809.Protocol.MessageBody
         public void Analyze(ref JT809MessagePackReader reader, Utf8JsonWriter writer, IJT809Config config)
         {
             JT809_0x1102 value = new JT809_0x1102();
+            value.SubBusinessType = reader.ReadUInt16();
+            writer.WriteNumber($"[{value.SubBusinessType.ReadNumber()}]子业务类型标识", value.SubBusinessType);
+            value.DataLength = reader.ReadUInt32();
+            writer.WriteNumber($"[{value.DataLength.ReadNumber()}]后续数据长度", value.DataLength);
             var virtualHex = reader.ReadVirtualArray(11);
-            value.PlateformId = reader.ReadBigNumber(11);
+            value.PlateformId = reader.ReadString(11);
             writer.WriteString($"[{virtualHex.ToArray().ToHexString()}]平台唯一编码", value.PlateformId);
             virtualHex = reader.ReadVirtualArray(8);
             value.StartTime = reader.ReadUTCDateTime();
@@ -70,13 +74,14 @@ namespace JT809.Protocol.MessageBody
             writer.WriteNumber($"[{value.DisconnectNum.ReadNumber()}]START_TIME~END_TIME期间下级监控平台链路断开次数", value.DisconnectNum);
             value.DisconnectTime = reader.ReadUInt32();
             writer.WriteNumber($"[{value.DisconnectTime.ReadNumber()}]START_TIME~END_TIME期间下级监控平台链路断开总时长，用秒表示", value.DisconnectTime);
-
         }
 
         public JT809_0x1102 Deserialize(ref JT809MessagePackReader reader, IJT809Config config)
         {
             JT809_0x1102 value = new JT809_0x1102();
-            value.PlateformId = reader.ReadBigNumber(11);
+            value.SubBusinessType = reader.ReadUInt16();
+            value.DataLength = reader.ReadUInt32();
+            value.PlateformId = reader.ReadString(11);
             value.StartTime = reader.ReadUTCDateTime();
             value.EndTime = reader.ReadUTCDateTime();
             value.LoseDymamicSum = reader.ReadUInt32();
@@ -87,7 +92,9 @@ namespace JT809.Protocol.MessageBody
 
         public void Serialize(ref JT809MessagePackWriter writer, JT809_0x1102 value, IJT809Config config)
         {
-            writer.WriteBigNumber(value.PlateformId, 11);
+            writer.WriteUInt16(value.SubBusinessType);
+            writer.WriteUInt32(value.DataLength);
+            writer.WriteStringPadRight(value.PlateformId, 11);
             writer.WriteUTCDateTime(value.StartTime);
             writer.WriteUTCDateTime(value.EndTime);
             writer.WriteUInt32(value.LoseDymamicSum);