diff --git a/protocols/JiShe.CollectBus.Protocol.T37612012/SendData/Telemetry3761PacketBuilder.cs b/protocols/JiShe.CollectBus.Protocol.T37612012/SendData/Telemetry3761PacketBuilder.cs
index ab43cc8..f8bfa78 100644
--- a/protocols/JiShe.CollectBus.Protocol.T37612012/SendData/Telemetry3761PacketBuilder.cs
+++ b/protocols/JiShe.CollectBus.Protocol.T37612012/SendData/Telemetry3761PacketBuilder.cs
@@ -250,7 +250,8 @@ namespace JiShe.CollectBus.Protocol.T37612012.SendData
                 Pn = request.Pn,
                 Fn = request.Fn
             };
-            var bytes = Build3761SendData.BuildSendCommandBytes(reqParameter);
+            
+            var bytes = Build3761SendData.BuildSendCommandBytes(reqParameter,request.DataUnit);
             return new Telemetry3761PacketResponse() { Seq = reqParameter.Seq.PRSEQ, Data = bytes, MSA = reqParameter.MSA, };
         }
         #endregion
diff --git a/protocols/JiShe.CollectBus.Protocol.T37612012/T37612012ProtocolPlugin.cs b/protocols/JiShe.CollectBus.Protocol.T37612012/T37612012ProtocolPlugin.cs
index b7b3446..a469147 100644
--- a/protocols/JiShe.CollectBus.Protocol.T37612012/T37612012ProtocolPlugin.cs
+++ b/protocols/JiShe.CollectBus.Protocol.T37612012/T37612012ProtocolPlugin.cs
@@ -706,6 +706,36 @@ namespace JiShe.CollectBus.Protocol.T37612012
         /// <returns></returns>
         public static int CalculateFn(string dt1, string dt2) => dt2.HexToDec() * 8 + (8 - dt1.HexTo4BinZero().IndexOf("1"));
 
+        #region 下行
+        /// <summary>
+        /// 生成二类项采集项时间数据单元
+        /// </summary>
+        /// <param name="timeMark"></param>
+        /// <param name="validLength"></param>
+        /// <returns></returns>
+        public virtual List<string> Generate_DataUnit(DataTimeMark timeMark)
+        { 
+            List<string> values = new List<string>
+            {
+                SplitDataTime(timeMark.DataTime)//数据时间
+            };
+            if (timeMark.Density > 0)
+                values.Add(timeMark.Density.HexToDecStr().PadLeft(2, '0'));//密度
+            if (timeMark.Point > 0)
+                values.Add(timeMark.Point.HexToDecStr().PadLeft(2, '0'));//数据点数
+            return values;
+        }
+
+
+        private string SplitDataTime(DateTime dataTime)
+        {
+            //2101060815 
+            List<string> values = new List<string>() { $"{dataTime}:YY", $"{dataTime}:MM", $"{dataTime}:dd", $"{dataTime}:HH", $"{dataTime}:mm", };
+
+            values.Reverse();
+            return string.Join("", values);
+        }
+        #endregion
 
 
         #region 上行命令
diff --git a/protocols/JiShe.CollectBus.Protocol.T6452007/T6452007ProtocolPlugin.cs b/protocols/JiShe.CollectBus.Protocol.T6452007/T6452007ProtocolPlugin.cs
index 4dc789e..a4f820b 100644
--- a/protocols/JiShe.CollectBus.Protocol.T6452007/T6452007ProtocolPlugin.cs
+++ b/protocols/JiShe.CollectBus.Protocol.T6452007/T6452007ProtocolPlugin.cs
@@ -113,6 +113,11 @@ namespace JiShe.CollectBus.Protocol.T6452007
                 }
             }
 
+            if (aFNStr == "0D")//二类数据
+            {
+                dataUnit = Generate_DataUnit(request.DataTimeMark);
+            }
+
             string afnMethonCode = $"AFN{aFNStr}_Fn_Send";
             if (base.T3761AFNHandlers != null && base.T3761AFNHandlers.TryGetValue(afnMethonCode
                     , out var handler))
diff --git a/protocols/JiShe.CollectBus.Protocol/Models/DataTimeMark.cs b/protocols/JiShe.CollectBus.Protocol/Models/DataTimeMark.cs
new file mode 100644
index 0000000..2efbaad
--- /dev/null
+++ b/protocols/JiShe.CollectBus.Protocol/Models/DataTimeMark.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JiShe.CollectBus.Protocol
+{
+    /// <summary>
+    /// 数据时间标记
+    /// </summary>
+    public class DataTimeMark
+    {
+        /// <summary>
+        /// 数据时间
+        /// </summary>
+        public DateTime DataTime { get; set;}
+
+        /// <summary>
+        /// 数据点数
+        /// </summary>
+        public int Point { get; set; }
+
+        /// <summary>
+        /// 冻结密度（-1、采集项本身无密度位，0、无，1、15分钟，2、30分钟，3、60分钟，245、5分钟，255、1分钟）
+        /// </summary>
+        public int Density { get; set; }
+    }
+}
diff --git a/protocols/JiShe.CollectBus.Protocol/Models/ProtocolBuildRequest.cs b/protocols/JiShe.CollectBus.Protocol/Models/ProtocolBuildRequest.cs
index 1e0136a..e287547 100644
--- a/protocols/JiShe.CollectBus.Protocol/Models/ProtocolBuildRequest.cs
+++ b/protocols/JiShe.CollectBus.Protocol/Models/ProtocolBuildRequest.cs
@@ -1,4 +1,6 @@
-namespace JiShe.CollectBus.Protocol.Models
+using JiShe.CollectBus.Common.BuildSendDatas;
+
+namespace JiShe.CollectBus.Protocol.Models
 {
     /// <summary>
     /// 报文构建参数
@@ -21,9 +23,9 @@
         public required string ItemCode { get; set; }
 
         /// <summary>
-        /// 任务时间戳
+        /// 任务时间
         /// </summary>
-        public long TimeStamp { get; set; }
+        public DataTimeMark DataTimeMark { get; set; }
 
         /// <summary>
         /// 集中器转发协议构建构建参数
diff --git a/services/JiShe.CollectBus.Application/DataChannels/DataChannelManageService.cs b/services/JiShe.CollectBus.Application/DataChannels/DataChannelManageService.cs
index f0f7fbe..757af18 100644
--- a/services/JiShe.CollectBus.Application/DataChannels/DataChannelManageService.cs
+++ b/services/JiShe.CollectBus.Application/DataChannels/DataChannelManageService.cs
@@ -98,6 +98,7 @@ namespace JiShe.CollectBus.DataChannels
                     timer.Restart();
 
                     var startTime = DateTime.Now;
+                    string topicName = string.Empty;
 
                     while (taskInfoList != null && taskInfoList.Count < batchSize && (DateTime.Now - startTime) < timeout)
                     {
@@ -105,6 +106,7 @@ namespace JiShe.CollectBus.DataChannels
                         { 
                             if (_telemetryPacketInfoReader.TryRead(out var dataItem))
                             {
+                                topicName = dataItem.Item1;
                                 taskInfoList.AddRange(dataItem.Item2);
                             }
                         }
@@ -124,7 +126,7 @@ namespace JiShe.CollectBus.DataChannels
                             deviceIdSelector: data => data.DeviceId,
                             processor: (data, groupIndex) =>
                             {
-                                // _ = KafkaProducerIssuedMessageAction(dateItem.Item1, data, groupIndex);
+                                 //_ = KafkaProducerIssuedMessageAction(dateItem.Item1, data, groupIndex);
                             }
                         );
 
diff --git a/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs b/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
index 9740c2e..e707f8a 100644
--- a/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
+++ b/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
@@ -736,6 +736,12 @@ namespace JiShe.CollectBus.ScheduledMeterReading
                     FocusAddress = ammeterInfo.FocusAddress,
                     Pn = ammeterInfo.MeteringCode,
                     ItemCode = tempItem,
+                    DataTimeMark = new Protocol.DataTimeMark()
+                    {
+                        Density = ammeterInfo.TimeDensity,//todo 转换成协议的值
+                        Point = 1,
+                        DataTime = timestamps,
+                    }
                 });
                 if (builderResponse == null || builderResponse.Data.Length <= 0)
                 {
@@ -1521,7 +1527,6 @@ namespace JiShe.CollectBus.ScheduledMeterReading
                 member = page.NextMember;
             }
 
-
             //var page = await _redisDataCacheService.GetAllPagedData<T>(
             //       redisCacheMeterInfoHashKeyTemp,
             //       redisCacheMeterInfoZSetScoresIndexKeyTemp,
diff --git a/shared/JiShe.CollectBus.Common/Extensions/DateTimeExtensions.cs b/shared/JiShe.CollectBus.Common/Extensions/DateTimeExtensions.cs
index 6936ad3..d7e12e3 100644
--- a/shared/JiShe.CollectBus.Common/Extensions/DateTimeExtensions.cs
+++ b/shared/JiShe.CollectBus.Common/Extensions/DateTimeExtensions.cs
@@ -245,7 +245,7 @@ namespace JiShe.CollectBus.Common.Extensions
         /// <param name="dateLong"></param>
         /// <returns></returns>
         /// <exception cref="ArgumentException"></exception>
-        public static DateTime ParseIntToDate(long dateLong)
+        public static DateTime ParseIntToDate(this long dateLong)
         {
             if (dateLong < 10000101 || dateLong > 99991231)
             {