增加2019版本808协议的位置附加和终端参数设置

README.md

@@ -316,7 +316,7 @@ Platform=AnyCpu  Server=False  Toolchain=.NET Core 3.0
 | 6     | 0x8100        | √        | √        | 终端注册应答                   |
 | 7     | 0x0003        | √        | √        | 终端注销                       |
 | 8     | 0x0102        | √        | √        | 终端鉴权                       |修改|
-| 9     | 0x8103        | √        | x        | 设置终端参数                   |修改且增加|
+| 9     | 0x8103        | √        | √        | 设置终端参数                   |修改且增加|
 | 10    | 0x8104        | √        | √        | 查询终端参数                   |
 | 11    | 0x0104        | √        | √        | 查询终端参数应答               |
 | 12    | 0x8105        | √        | √        | 终端控制                       |
@@ -325,19 +325,19 @@ Platform=AnyCpu  Server=False  Toolchain=.NET Core 3.0
 | 15    | 0x0107        | √        | √        | 查询终端属性应答               |
 | 16    | 0x8108        | √        | √        | 下发终端升级包                 |
 | 17    | 0x0108        | √        | √        | 终端升级结果通知               |
-| 18    | 0x0200        | √        | √        | 位置信息汇报                   |
+| 18    | 0x0200        | √        | √        | 位置信息汇报                   |增加附加信息|
 | 19    | 0x8201        | √        | √        | 位置信息查询                   |
 | 20    | 0x0201        | √        | √        | 位置信息查询应答               |
 | 21    | 0x8202        | √        | √        | 临时位置跟踪控制               |
 | 22    | 0x8203        | √        | √        | 人工确认报警消息               |
 | 23    | 0x8300        | √        | √        | 文本信息下发                   |
-| 24    | 0x8301        | √        | √        | 事件设置                       |
-| 25    | 0x0301        | √        | √        | 事件报告                       |
-| 26    | 0x8302        | √        | √        | 提问下发                       |
-| 27    | 0x0302        | √        | √        | 提问应答                       |
-| 28    | 0x8303        | √        | √        | 信息点播菜单设置               |
-| 29    | 0x0303        | √        | √        | 信息点播/取消                  |
-| 30    | 0x8304        | √        | √        | 信息服务                       |
+| 24    | 0x8301        | √        | √        | 事件设置                       |删除|
+| 25    | 0x0301        | √        | √        | 事件报告                       |删除|
+| 26    | 0x8302        | √        | √        | 提问下发                       |删除|
+| 27    | 0x0302        | √        | √        | 提问应答                       |删除|
+| 28    | 0x8303        | √        | √        | 信息点播菜单设置               |删除|
+| 29    | 0x0303        | √        | √        | 信息点播/取消                  |删除|
+| 30    | 0x8304        | √        | √        | 信息服务                       |删除|
 | 31    | 0x8400        | √        | √        | 电话回拨                       |
 | 32    | 0x8401        | √        | √        | 设置电话本                     |
 | 33    | 0x8500        | √        | √        | 车辆控制                       |
@@ -378,3 +378,4 @@ Platform=AnyCpu  Server=False  Toolchain=.NET Core 3.0
 | 68    | 0x0004 | √     | √     | 查询服务器时间请求             |新增|
 | 69    | 0x8004 | √     | √     | 查询服务器时间应答             |新增|
 | 70    | 0x0005 | √     | √     | 终端补传分包请求               |新增|
+| 71    | 0x8204 | √     | √     | 链路检测               |新增|

src/JT808.Protocol.Test/MessageBody/JT808_0x8103Test.cs

@@ -162,5 +162,7 @@ namespace JT808.Protocol.Test.MessageBody
 
             Assert.Equal(customParams, Newtonsoft.Json.JsonConvert.SerializeObject(jT808_0X8103.CustomParamList));
         }
+
+
     }
 }

src/JT808.Protocol.Test/MessagePack/JT808MessagePackWriterTest.cs

@@ -6,6 +6,7 @@ using System.Text;
 using Xunit;
 using System.Buffers;
 using JT808.Protocol.Enums;
+using System.Buffers.Binary;
 
 namespace JT808.Protocol.Test.MessagePack
 {
@@ -468,5 +469,16 @@ namespace JT808.Protocol.Test.MessagePack
             msgpackWriter.Version = JT808Version.JTT2019;
             Assert.Equal(JT808Version.JTT2019, msgpackWriter.Version);
         }
+
+        [Fact]
+        public void WriteInt16Test1()
+        {
+            byte[] array1 = new byte[2];
+            byte[] array2= new byte[2];
+            BinaryPrimitives.WriteInt16BigEndian(array1, -1233);
+            short a = -1233;
+            BinaryPrimitives.WriteUInt16BigEndian(array2, (ushort)a);
+            Assert.Equal(array1, array2);
+        }
     }
 }

src/JT808.Protocol/Interfaces/IJT808_2019_Version.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace JT808.Protocol.Interfaces
+{
+    /// <summary>
+    /// 只用来标识2019版本增删改情况
+    /// </summary>
+    public interface IJT808_2019_Version
+    {
+    }
+}

src/JT808.Protocol/JT808.Protocol.csproj

@@ -65,13 +65,13 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.7">
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.CSharp" Version="4.6.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.6.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.0.1" />
   </ItemGroup>
   
   <ItemGroup>

src/JT808.Protocol/JT808.Protocol.xml

@@ -1661,6 +1661,11 @@
             注意:处理808的分包读取完流需要先进行转义在进行分包
             </summary>
         </member>
+        <member name="T:JT808.Protocol.Interfaces.IJT808_2019_Version">
+            <summary>
+            只用来标识2019版本增删改情况
+            </summary>
+        </member>
         <member name="P:JT808.Protocol.IJT808Config.MsgSNDistributed">
             <summary>
             消息流水号
@@ -2538,26 +2543,29 @@
         <member name="P:JT808.Protocol.MessageBody.JT808_0x0107.MakerId">
             <summary>
             制造商 ID
-            5 个字节，终端制造商编码
+            2013版本 5 个字节，终端制造商编码
+            2019版本 11 个字节，终端制造商编码
             </summary>
         </member>
         <member name="P:JT808.Protocol.MessageBody.JT808_0x0107.TerminalModel">
             <summary>
             终端型号
-            BYTE[20]
-            20 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
+            BYTE[20] 20 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
+            2019版本
+            BYTE[30] 30 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
             </summary>
         </member>
         <member name="P:JT808.Protocol.MessageBody.JT808_0x0107.TerminalId">
             <summary>
             终端ID 
-            BYTE[7]
-            7 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
+            BYTE[7]  7 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
+            2019版本
+            BYTE[30]  30 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
             </summary>
         </member>
         <member name="P:JT808.Protocol.MessageBody.JT808_0x0107.Terminal_SIM_ICCID">
             <summary>
-            终端 SIM 卡 ICCID 
+            终端 SIM 卡 ICCID
             BCD[10]
             </summary>
         </member>
@@ -2729,6 +2737,28 @@
             需要人工确认报警事件的 ID，从 1 开始计数
             </summary>
         </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x0200_0x05">
+            <summary>
+            胎压
+             2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x0200_0x05.TirePressure">
+            <summary>
+            胎压
+            </summary>
+        </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x0200_0x06">
+            <summary>
+            胎压
+             2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x0200_0x06.CarTemperature">
+            <summary>
+            车厢温度
+            </summary>
+        </member>
         <member name="P:JT808.Protocol.MessageBody.JT808_0x0200_0x11.JT808PositionType">
             <summary>
             超速报警附加信息
@@ -3694,6 +3724,70 @@
             驾驶员未登录汇报时间间隔，单位为秒（s），>0
             </summary>
         </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0023">
+            <summary>
+            从服务器APN。该值为空时，终端应使用主服务器相同配置
+            2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0023.ParamLength">
+            <summary>
+            数据 长度
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0023.ParamValue">
+            <summary>
+            
+            </summary>
+        </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0024">
+            <summary>
+            从服务器无线通信拨号用户名。该值为空时，终端应使用主服务器相同配置
+            2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0024.ParamLength">
+            <summary>
+            数据 长度
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0024.ParamValue">
+            <summary>
+            
+            </summary>
+        </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0025">
+            <summary>
+            从服务器无线通信拨号密码。该值为空，终端应使用主服务器相同配置
+            2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0025.ParamLength">
+            <summary>
+            数据 长度
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0025.ParamValue">
+            <summary>
+            
+            </summary>
+        </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0026">
+            <summary>
+            从服务器无线通信拨号密码。该值为空，终端应使用主服务器相同配置
+            2019版本
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0026.ParamLength">
+            <summary>
+            数据 长度
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0026.ParamValue">
+            <summary>
+            
+            </summary>
+        </member>
         <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0027">
             <summary>
             休眠时汇报时间间隔，单位为秒（s），>0
@@ -3821,6 +3915,21 @@
             电子围栏半径（非法位移阈值），单位为米
             </summary>
         </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0032">
+            <summary>
+            违规行驶时段范围
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0032.ParamLength">
+            <summary>
+            数据 长度
+            </summary>
+        </member>
+        <member name="P:JT808.Protocol.MessageBody.JT808_0x8103_0x0032.ParamValue">
+            <summary>
+            电子围栏半径（非法位移阈值），单位为米
+            </summary>
+        </member>
         <member name="T:JT808.Protocol.MessageBody.JT808_0x8103_0x0040">
             <summary>
             监控平台电话号码
@@ -4768,7 +4877,8 @@
         <member name="P:JT808.Protocol.MessageBody.JT808_0x8108.MakerId">
             <summary>
             制造商 ID
-            5 个字节，终端制造商编码
+            2013版本 5 个字节，终端制造商编码
+            2019版本 11 个字节，终端制造商编码
             </summary>
         </member>
         <member name="P:JT808.Protocol.MessageBody.JT808_0x8108.VersionNumLength">
@@ -4835,6 +4945,12 @@
             人工确认报警类型
             </summary>
         </member>
+        <member name="T:JT808.Protocol.MessageBody.JT808_0x8204">
+            <summary>
+            链路检测
+            2019版本
+            </summary>
+        </member>
         <member name="T:JT808.Protocol.MessageBody.JT808_0x8300">
             <summary>
             文本信息下发

src/JT808.Protocol/MessageBody/JT808_0x0004.cs

@@ -1,10 +1,12 @@
-namespace JT808.Protocol.MessageBody
+using JT808.Protocol.Interfaces;
+
+namespace JT808.Protocol.MessageBody
 {
     /// <summary>
     /// 查询服务器时间请求
     /// 2019版本
     /// </summary>
-    public class JT808_0x0004 : JT808Bodies
+    public class JT808_0x0004 : JT808Bodies, IJT808_2019_Version
     {
         /// <summary>
         /// 跳过数据体序列化

src/JT808.Protocol/MessageBody/JT808_0x0005.cs

@@ -1,4 +1,5 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// 终端补传分包请求
     /// 2019版本
     /// </summary>
-    public class JT808_0x0005 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0005>
+    public class JT808_0x0005 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0005>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0005;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x0100.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Enums;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 终端注册
     /// </summary>
-    public class JT808_0x0100 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0100>
+    public class JT808_0x0100 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0100>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0100;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x0102.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Enums;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 终端鉴权
     /// </summary>
-    public class JT808_0x0102 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0102>
+    public class JT808_0x0102 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0102>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0102;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x0107.cs

@@ -1,4 +1,6 @@
-using JT808.Protocol.Formatters;
+using JT808.Protocol.Enums;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -6,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 查询终端属性应答
     /// </summary>
-    public class JT808_0x0107 : JT808Bodies,IJT808MessagePackFormatter<JT808_0x0107>
+    public class JT808_0x0107 : JT808Bodies,IJT808MessagePackFormatter<JT808_0x0107>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0107;
         /// <summary>
@@ -21,23 +23,26 @@ namespace JT808.Protocol.MessageBody
         public ushort TerminalType { get; set; }
         /// <summary>
         /// 制造商 ID
-        /// 5 个字节，终端制造商编码
+        /// 2013版本 5 个字节，终端制造商编码
+        /// 2019版本 11 个字节，终端制造商编码
         /// </summary>
         public string MakerId { get; set; }
         /// <summary>
         /// 终端型号
-        /// BYTE[20]
-        /// 20 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
+        /// BYTE[20] 20 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
+        /// 2019版本
+        /// BYTE[30] 30 个字节，此终端型号由制造商自行定义，位数不足时，后补“0X00”。
         /// </summary>
         public string TerminalModel { get; set; }
         /// <summary>
         /// 终端ID 
-        /// BYTE[7]
-        /// 7 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
+        /// BYTE[7]  7 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
+        /// 2019版本
+        /// BYTE[30]  30 个字节，由大写字母和数字组成，此终端 ID 由制造商自行定义，位数不足时，后补“0X00”
         /// </summary>
         public string TerminalId { get; set; }
         /// <summary>
-        /// 终端 SIM 卡 ICCID 
+        /// 终端 SIM 卡 ICCID
         /// BCD[10]
         /// </summary>
         public string Terminal_SIM_ICCID { get; set; }
@@ -81,9 +86,18 @@ namespace JT808.Protocol.MessageBody
         {
             JT808_0x0107 jT808_0X0107 = new JT808_0x0107();
             jT808_0X0107.TerminalType = reader.ReadUInt16();
-            jT808_0X0107.MakerId = reader.ReadString(5);
-            jT808_0X0107.TerminalModel = reader.ReadString(20);
-            jT808_0X0107.TerminalId = reader.ReadString(7);
+            if(reader.Version== JT808Version.JTT2019)
+            {
+                jT808_0X0107.MakerId = reader.ReadString(11);
+                jT808_0X0107.TerminalModel = reader.ReadString(30);
+                jT808_0X0107.TerminalId = reader.ReadString(30);
+            }
+            else
+            {
+                jT808_0X0107.MakerId = reader.ReadString(5);
+                jT808_0X0107.TerminalModel = reader.ReadString(20);
+                jT808_0X0107.TerminalId = reader.ReadString(7);
+            }
             jT808_0X0107.Terminal_SIM_ICCID = reader.ReadBCD(10, config.Trim);
             jT808_0X0107.Terminal_Hardware_Version_Length = reader.ReadByte();
             jT808_0X0107.Terminal_Hardware_Version_Num = reader.ReadString(jT808_0X0107.Terminal_Hardware_Version_Length);
@@ -97,9 +111,18 @@ namespace JT808.Protocol.MessageBody
         public void Serialize(ref JT808MessagePackWriter writer, JT808_0x0107 value, IJT808Config config)
         {
             writer.WriteUInt16(value.TerminalType);
-            writer.WriteString(value.MakerId.PadRight(5, '0'));
-            writer.WriteString(value.TerminalModel.PadRight(20, '0'));
-            writer.WriteString(value.TerminalId.PadRight(7, '0'));
+            if (writer.Version == JT808Version.JTT2019)
+            {
+                writer.WriteString(value.MakerId.PadLeft(11, '0'));
+                writer.WriteString(value.TerminalModel.PadLeft(30, '0'));
+                writer.WriteString(value.TerminalId.PadLeft(30, '0'));
+            }
+            else
+            {
+                writer.WriteString(value.MakerId.PadRight(5, '0'));
+                writer.WriteString(value.TerminalModel.PadRight(20, '0'));
+                writer.WriteString(value.TerminalId.PadRight(7, '0'));
+            }
             writer.WriteBCD(value.Terminal_SIM_ICCID, 10);
             writer.WriteByte((byte)value.Terminal_Hardware_Version_Num.Length);
             writer.WriteString(value.Terminal_Hardware_Version_Num);

src/JT808.Protocol/MessageBody/JT808_0x0200_0x05.cs

@@ -0,0 +1,37 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 胎压
+    ///  2019版本
+    /// </summary>
+    public class JT808_0x0200_0x05 : JT808_0x0200_BodyBase, IJT808MessagePackFormatter<JT808_0x0200_0x05>, IJT808_2019_Version
+    {
+        /// <summary>
+        /// 胎压
+        /// </summary>
+        public string TirePressure { get; set; }
+        public override byte AttachInfoId { get; set; } = 0x05;
+        public override byte AttachInfoLength { get; set; } = 30;
+
+        public JT808_0x0200_0x05 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x0200_0x05 value = new JT808_0x0200_0x05();
+            value.AttachInfoId = reader.ReadByte();
+            value.AttachInfoLength = reader.ReadByte();
+            value.TirePressure = reader.ReadString(value.AttachInfoLength);
+            return value;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x0200_0x05 value, IJT808Config config)
+        {
+            writer.WriteByte(value.AttachInfoId);
+            writer.WriteByte(value.AttachInfoLength);
+            writer.WriteString(value.TirePressure);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x0200_0x06.cs

@@ -0,0 +1,37 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 胎压
+    ///  2019版本
+    /// </summary>
+    public class JT808_0x0200_0x06 : JT808_0x0200_BodyBase, IJT808MessagePackFormatter<JT808_0x0200_0x06>, IJT808_2019_Version
+    {
+        /// <summary>
+        /// 车厢温度
+        /// </summary>
+        public short CarTemperature { get; set; }
+        public override byte AttachInfoId { get; set; } = 0x05;
+        public override byte AttachInfoLength { get; set; } = 2;
+
+        public JT808_0x0200_0x06 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x0200_0x06 value = new JT808_0x0200_0x06();
+            value.AttachInfoId = reader.ReadByte();
+            value.AttachInfoLength = reader.ReadByte();
+            value.CarTemperature =reader.ReadInt16();
+            return value;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x0200_0x06 value, IJT808Config config)
+        {
+            writer.WriteByte(value.AttachInfoId);
+            writer.WriteByte(value.AttachInfoLength);
+            writer.WriteInt16(value.CarTemperature);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x0301.cs

@@ -1,5 +1,7 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
@@ -7,7 +9,8 @@ namespace JT808.Protocol.MessageBody
     /// 事件报告
     /// 0x0301
     /// </summary>
-    public class JT808_0x0301 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0301>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x0301 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0301>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0301;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x0302.cs

@@ -1,6 +1,8 @@
 using JT808.Protocol.Attributes;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
@@ -8,7 +10,8 @@ namespace JT808.Protocol.MessageBody
     /// 提问应答
     /// 0x0302
     /// </summary>
-    public class JT808_0x0302 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0302>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x0302 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0302>,IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0302;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x0303.cs

@@ -1,5 +1,7 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
@@ -7,7 +9,8 @@ namespace JT808.Protocol.MessageBody
     /// 信息点播/取消
     /// 0x0303
     /// </summary>
-    public class JT808_0x0303 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0303>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x0303 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x0303>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x0303;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8004.cs

@@ -1,4 +1,5 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 using System;
 
@@ -8,7 +9,7 @@ namespace JT808.Protocol.MessageBody
     /// 查询服务器时间应答
     /// 2019版本
     /// </summary>
-    public class JT808_0x8004 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8004>
+    public class JT808_0x8004 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8004>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8004;
 

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0018.cs

@@ -1,13 +1,16 @@
 using JT808.Protocol.Attributes;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
     /// <summary>
     /// 服务器 TCP 端口
     /// </summary>
-    public class JT808_0x8103_0x0018 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0018>
+    [Obsolete("2019版本已作为保留")]
+    public class JT808_0x8103_0x0018 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0018>, IJT808_2019_Version
     {
         public override uint ParamId { get; set; } = 0x0018;
         /// <summary>
@@ -20,11 +23,11 @@ namespace JT808.Protocol.MessageBody
         public uint ParamValue { get; set; }
         public JT808_0x8103_0x0018 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
         {
-            JT808_0x8103_0x0018 jT808_0x8103_0x0018 = new JT808_0x8103_0x0018();
-            jT808_0x8103_0x0018.ParamId = reader.ReadUInt32();
-            jT808_0x8103_0x0018.ParamLength = reader.ReadByte();
-            jT808_0x8103_0x0018.ParamValue = reader.ReadUInt32();
-            return jT808_0x8103_0x0018;
+            JT808_0x8103_0x0018 value = new JT808_0x8103_0x0018();
+            value.ParamId = reader.ReadUInt32();
+            value.ParamLength = reader.ReadByte();
+            value.ParamValue = reader.ReadUInt32();
+            return value;
         }
 
         public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0018 value, IJT808Config config)

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0019.cs

@@ -1,13 +1,16 @@
 using JT808.Protocol.Attributes;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
     /// <summary>
     /// 服务器 UDP 端口
     /// </summary>
-    public class JT808_0x8103_0x0019 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0019>
+    [Obsolete("2019版本已作为保留")]
+    public class JT808_0x8103_0x0019 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0019>, IJT808_2019_Version
     {
         public override uint ParamId { get; set; } = 0x0019;
         /// <summary>
@@ -20,11 +23,11 @@ namespace JT808.Protocol.MessageBody
         public uint ParamValue { get; set; }
         public JT808_0x8103_0x0019 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
         {
-            JT808_0x8103_0x0019 jT808_0x8103_0x0019 = new JT808_0x8103_0x0019();
-            jT808_0x8103_0x0019.ParamId = reader.ReadUInt32();
-            jT808_0x8103_0x0019.ParamLength = reader.ReadByte();
-            jT808_0x8103_0x0019.ParamValue = reader.ReadUInt32();
-            return jT808_0x8103_0x0019;
+            JT808_0x8103_0x0019 value = new JT808_0x8103_0x0019();
+            value.ParamId = reader.ReadUInt32();
+            value.ParamLength = reader.ReadByte();
+            value.ParamValue = reader.ReadUInt32();
+            return value;
         }
 
         public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0019 value, IJT808Config config)

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0023.cs

@@ -0,0 +1,41 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 从服务器APN。该值为空时，终端应使用主服务器相同配置
+    /// 2019版本
+    /// </summary>
+    public class JT808_0x8103_0x0023 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0023>, IJT808_2019_Version
+    {
+        public override uint ParamId { get; set; } = 0x0023;
+        /// <summary>
+        /// 数据 长度
+        /// </summary>
+        public override byte ParamLength { get; set; }
+        /// <summary>
+        /// 
+        /// </summary>
+        public string ParamValue { get; set; }
+        public JT808_0x8103_0x0023 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x8103_0x0023 value = new JT808_0x8103_0x0023();
+            value.ParamId = reader.ReadUInt32();
+            value.ParamLength = reader.ReadByte();
+            value.ParamValue = reader.ReadString(value.ParamLength);
+            return value;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0023 value, IJT808Config config)
+        {
+            writer.WriteUInt32(value.ParamId);
+            writer.Skip(1, out int skipPosition);
+            writer.WriteString(value.ParamValue);
+            int length = writer.GetCurrentPosition() - skipPosition - 1;
+            writer.WriteByteReturn((byte)length, skipPosition);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0024.cs

@@ -0,0 +1,41 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 从服务器无线通信拨号用户名。该值为空时，终端应使用主服务器相同配置
+    /// 2019版本
+    /// </summary>
+    public class JT808_0x8103_0x0024 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0024>, IJT808_2019_Version
+    {
+        public override uint ParamId { get; set; } = 0x0024;
+        /// <summary>
+        /// 数据 长度
+        /// </summary>
+        public override byte ParamLength { get; set; }
+        /// <summary>
+        /// 
+        /// </summary>
+        public string ParamValue { get; set; }
+        public JT808_0x8103_0x0024 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x8103_0x0024 jT808_0x8103_0x0024 = new JT808_0x8103_0x0024();
+            jT808_0x8103_0x0024.ParamId = reader.ReadUInt32();
+            jT808_0x8103_0x0024.ParamLength = reader.ReadByte();
+            jT808_0x8103_0x0024.ParamValue = reader.ReadString(jT808_0x8103_0x0024.ParamLength);
+            return jT808_0x8103_0x0024;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0024 value, IJT808Config config)
+        {
+            writer.WriteUInt32(value.ParamId);
+            writer.Skip(1, out int skipPosition);
+            writer.WriteString(value.ParamValue);
+            int length = writer.GetCurrentPosition() - skipPosition - 1;
+            writer.WriteByteReturn((byte)length, skipPosition);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0025.cs

@@ -0,0 +1,41 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 从服务器无线通信拨号密码。该值为空，终端应使用主服务器相同配置
+    /// 2019版本
+    /// </summary>
+    public class JT808_0x8103_0x0025 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0025>, IJT808_2019_Version
+    {
+        public override uint ParamId { get; set; } = 0x0025;
+        /// <summary>
+        /// 数据 长度
+        /// </summary>
+        public override byte ParamLength { get; set; }
+        /// <summary>
+        /// 
+        /// </summary>
+        public string ParamValue { get; set; }
+        public JT808_0x8103_0x0025 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x8103_0x0025 jT808_0x8103_0x0025 = new JT808_0x8103_0x0025();
+            jT808_0x8103_0x0025.ParamId = reader.ReadUInt32();
+            jT808_0x8103_0x0025.ParamLength = reader.ReadByte();
+            jT808_0x8103_0x0025.ParamValue = reader.ReadString(jT808_0x8103_0x0025.ParamLength);
+            return jT808_0x8103_0x0025;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0025 value, IJT808Config config)
+        {
+            writer.WriteUInt32(value.ParamId);
+            writer.Skip(1, out int skipPosition);
+            writer.WriteString(value.ParamValue);
+            int length = writer.GetCurrentPosition() - skipPosition - 1;
+            writer.WriteByteReturn((byte)length, skipPosition);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0026.cs

@@ -0,0 +1,41 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 从服务器无线通信拨号密码。该值为空，终端应使用主服务器相同配置
+    /// 2019版本
+    /// </summary>
+    public class JT808_0x8103_0x0026 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0026>, IJT808_2019_Version
+    {
+        public override uint ParamId { get; set; } = 0x0026;
+        /// <summary>
+        /// 数据 长度
+        /// </summary>
+        public override byte ParamLength { get; set; }
+        /// <summary>
+        /// 
+        /// </summary>
+        public string ParamValue { get; set; }
+        public JT808_0x8103_0x0026 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x8103_0x0026 value = new JT808_0x8103_0x0026();
+            value.ParamId = reader.ReadUInt32();
+            value.ParamLength = reader.ReadByte();
+            value.ParamValue = reader.ReadString(value.ParamLength);
+            return value;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0026 value, IJT808Config config)
+        {
+            writer.WriteUInt32(value.ParamId);
+            writer.Skip(1, out int skipPosition);
+            writer.WriteString(value.ParamValue);
+            int length = writer.GetCurrentPosition() - skipPosition - 1;
+            writer.WriteByteReturn((byte)length, skipPosition);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0032.cs

@@ -0,0 +1,38 @@
+using JT808.Protocol.Attributes;
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 违规行驶时段范围
+    /// </summary>
+    public class JT808_0x8103_0x0032 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0032>, IJT808_2019_Version
+    {
+        public override uint ParamId { get; set; } = 0x0032;
+        /// <summary>
+        /// 数据 长度
+        /// </summary>
+        public override byte ParamLength { get; set; } = 4;
+        /// <summary>
+        /// 电子围栏半径（非法位移阈值），单位为米
+        /// </summary>
+        public byte[] ParamValue { get; set; }
+        public JT808_0x8103_0x0032 Deserialize(ref JT808MessagePackReader reader, IJT808Config config)
+        {
+            JT808_0x8103_0x0032 value = new JT808_0x8103_0x0032();
+            value.ParamId = reader.ReadUInt32();
+            value.ParamLength = reader.ReadByte();
+            value.ParamValue = reader.ReadArray(4).ToArray();
+            return value;
+        }
+
+        public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8103_0x0032 value, IJT808Config config)
+        {
+            writer.WriteUInt32(value.ParamId);
+            writer.WriteByte(value.ParamLength);
+            writer.WriteArray(value.ParamValue);
+        }
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8103_0x0084.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Attributes;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 车牌颜色，按照 JT/T415-2006 的 5.4.12
     /// </summary>
-    public class JT808_0x8103_0x0084 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0084>
+    public class JT808_0x8103_0x0084 : JT808_0x8103_BodyBase, IJT808MessagePackFormatter<JT808_0x8103_0x0084>, IJT808_2019_Version
     {
         public override uint ParamId { get; set; } = 0x0084;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8105.cs

@@ -1,4 +1,5 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 using System;
 
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 终端控制
     /// </summary>
-    public class JT808_0x8105 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8105>
+    public class JT808_0x8105 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8105>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8105;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8108.cs

@@ -1,5 +1,6 @@
 using JT808.Protocol.Enums;
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 
 namespace JT808.Protocol.MessageBody
@@ -7,7 +8,7 @@ namespace JT808.Protocol.MessageBody
     /// <summary>
     /// 下发终端升级包
     /// </summary>
-    public class JT808_0x8108 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8108>
+    public class JT808_0x8108 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8108>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8108;
         /// <summary>
@@ -16,7 +17,8 @@ namespace JT808.Protocol.MessageBody
         public JT808UpgradeType UpgradeType { get; set; }
         /// <summary>
         /// 制造商 ID
-        /// 5 个字节，终端制造商编码
+        /// 2013版本 5 个字节，终端制造商编码
+        /// 2019版本 11 个字节，终端制造商编码
         /// </summary>
         public string MakerId { get; set; }
         /// <summary>
@@ -40,7 +42,14 @@ namespace JT808.Protocol.MessageBody
         {
             JT808_0x8108 jT808_0X8108 = new JT808_0x8108();
             jT808_0X8108.UpgradeType = (JT808UpgradeType)reader.ReadByte();
-            jT808_0X8108.MakerId = reader.ReadString(5);
+            if (reader.Version == JT808Version.JTT2019)
+            {
+                jT808_0X8108.MakerId = reader.ReadString(11);
+            }
+            else
+            {
+                jT808_0X8108.MakerId = reader.ReadString(5);
+            }
             jT808_0X8108.VersionNumLength = reader.ReadByte();
             jT808_0X8108.VersionNum = reader.ReadString(jT808_0X8108.VersionNumLength);
             jT808_0X8108.UpgradePackageLength = reader.ReadInt32();
@@ -51,7 +60,14 @@ namespace JT808.Protocol.MessageBody
         public void Serialize(ref JT808MessagePackWriter writer, JT808_0x8108 value, IJT808Config config)
         {
             writer.WriteByte((byte)value.UpgradeType);
-            writer.WriteString(value.MakerId.PadRight(5, '0'));
+            if (writer.Version == JT808Version.JTT2019)
+            {
+                writer.WriteString(value.MakerId.PadLeft(11, '0'));
+            }
+            else
+            {
+                writer.WriteString(value.MakerId.PadRight(5, '0'));
+            }
             writer.WriteByte((byte)value.VersionNum.Length);
             writer.WriteString(value.VersionNum);
             writer.WriteInt32(value.UpgradePackage.Length);

src/JT808.Protocol/MessageBody/JT808_0x8204.cs

@@ -0,0 +1,17 @@
+using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
+using JT808.Protocol.MessagePack;
+
+namespace JT808.Protocol.MessageBody
+{
+    /// <summary>
+    /// 链路检测
+    /// 2019版本
+    /// </summary>
+    public class JT808_0x8204 : JT808Bodies, IJT808_2019_Version
+    {
+        public override ushort MsgId { get; } = 0x8204;
+
+        public override bool SkipSerialization { get; set; } = true;
+    }
+}

src/JT808.Protocol/MessageBody/JT808_0x8301.cs

@@ -1,6 +1,8 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 using JT808.Protocol.Metadata;
+using System;
 using System.Collections.Generic;
 
 namespace JT808.Protocol.MessageBody
@@ -9,7 +11,8 @@ namespace JT808.Protocol.MessageBody
     /// 事件设置
     /// 0x8301
     /// </summary>
-    public class JT808_0x8301 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8301>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x8301 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8301>,IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8301;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8302.cs

@@ -1,4 +1,5 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 using System;
 using System.Collections.Generic;
@@ -9,7 +10,8 @@ namespace JT808.Protocol.MessageBody
     /// 提问下发
     /// 0x8302
     /// </summary>
-    public class JT808_0x8302 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8302>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x8302 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8302>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8302;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8303.cs

@@ -1,6 +1,8 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
 using JT808.Protocol.Metadata;
+using System;
 using System.Collections.Generic;
 
 namespace JT808.Protocol.MessageBody
@@ -9,7 +11,8 @@ namespace JT808.Protocol.MessageBody
     /// 信息点播菜单设置
     /// 0x8303
     /// </summary>
-    public class JT808_0x8303 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8303>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x8303 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8303>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8303;
         /// <summary>

src/JT808.Protocol/MessageBody/JT808_0x8304.cs

@@ -1,5 +1,7 @@
 using JT808.Protocol.Formatters;
+using JT808.Protocol.Interfaces;
 using JT808.Protocol.MessagePack;
+using System;
 
 namespace JT808.Protocol.MessageBody
 {
@@ -7,7 +9,8 @@ namespace JT808.Protocol.MessageBody
     /// 信息服务
     /// 0x8304
     /// </summary>
-    public class JT808_0x8304 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8304>
+    [Obsolete("2019版本已作删除")]
+    public class JT808_0x8304 : JT808Bodies, IJT808MessagePackFormatter<JT808_0x8304>, IJT808_2019_Version
     {
         public override ushort MsgId { get; } = 0x8304;
         /// <summary>

src/JT808.Protocol/MessagePack/JT808MessagePackReader.cs

@@ -128,6 +128,10 @@ namespace JT808.Protocol.MessagePack
         public bool CheckXorCodeVali => _checkXorCodeVali;
         public byte ReadStart()=> ReadByte();
         public byte ReadEnd()=> ReadByte();
+        public short ReadInt16()
+        {
+            return BinaryPrimitives.ReadInt16BigEndian(GetReadOnlySpan(2));
+        }
         public ushort ReadUInt16()
         {
             return BinaryPrimitives.ReadUInt16BigEndian(GetReadOnlySpan(2)); 

src/JT808.Protocol/MessagePack/JT808MessagePackWriter.cs

@@ -70,6 +70,11 @@ namespace JT808.Protocol.MessagePack
             span[0] = value;
             writer.Advance(1);
         }
+        public void WriteInt16(short value)
+        {
+            BinaryPrimitives.WriteInt16BigEndian(writer.Free, value);
+            writer.Advance(2);
+        }
         public void WriteUInt16(ushort value)
         {
             BinaryPrimitives.WriteUInt16BigEndian(writer.Free, value);