diff --git a/modules/JiShe.CollectBus.IoTDB/Attribute/EntityTypeAttribute.cs b/modules/JiShe.CollectBus.IoTDB/Attribute/EntityTypeAttribute.cs
new file mode 100644
index 0000000..3610c00
--- /dev/null
+++ b/modules/JiShe.CollectBus.IoTDB/Attribute/EntityTypeAttribute.cs
@@ -0,0 +1,19 @@
+using JiShe.CollectBus.IoTDB.Enums;
+
+namespace JiShe.CollectBus.IoTDB.Attribute
+{
+    /// <summary>
+    /// IoTDB实体类型特性
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Class)]
+    public class EntityTypeAttribute : System.Attribute
+    {
+        public EntityTypeEnum EntityType { get; }
+
+
+        public EntityTypeAttribute(EntityTypeEnum entityType)
+        {
+            EntityType = entityType;
+        }
+    }
+}
diff --git a/modules/JiShe.CollectBus.IoTDB/Context/IoTDBRuntimeContext.cs b/modules/JiShe.CollectBus.IoTDB/Context/IoTDBRuntimeContext.cs
index cd99b00..f321fa0 100644
--- a/modules/JiShe.CollectBus.IoTDB/Context/IoTDBRuntimeContext.cs
+++ b/modules/JiShe.CollectBus.IoTDB/Context/IoTDBRuntimeContext.cs
@@ -17,7 +17,7 @@ namespace JiShe.CollectBus.IoTDB.Context
         }
 
         /// <summary>
-        /// 是否使用表模型存储, 默认false，使用tree模型存储
+        /// 存储模型切换标识，是否使用table模型存储, 默认为false，标识tree模型存储
         /// </summary>
         public bool UseTableSessionPool { get; set; }
 
diff --git a/modules/JiShe.CollectBus.IoTDB/EnumInfo/EntityTypeEnum.cs b/modules/JiShe.CollectBus.IoTDB/EnumInfo/EntityTypeEnum.cs
new file mode 100644
index 0000000..26c6645
--- /dev/null
+++ b/modules/JiShe.CollectBus.IoTDB/EnumInfo/EntityTypeEnum.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JiShe.CollectBus.IoTDB.Enums
+{
+    /// <summary>
+    /// IoTDB实体类型枚举
+    /// </summary>
+    public enum EntityTypeEnum
+    {
+        /// <summary>
+        /// 树模型
+        /// </summary>
+        TreeModel = 1,
+
+        /// <summary>
+        /// 表模型
+        /// </summary>
+        TableModel = 2,
+    }
+}
diff --git a/modules/JiShe.CollectBus.IoTDB/Provider/DeviceMetadata.cs b/modules/JiShe.CollectBus.IoTDB/Provider/DeviceMetadata.cs
index 447f6ce..a093bb7 100644
--- a/modules/JiShe.CollectBus.IoTDB/Provider/DeviceMetadata.cs
+++ b/modules/JiShe.CollectBus.IoTDB/Provider/DeviceMetadata.cs
@@ -1,4 +1,5 @@
 using Apache.IoTDB;
+using JiShe.CollectBus.IoTDB.Enums;
 
 namespace JiShe.CollectBus.IoTDB.Provider
 {
@@ -7,6 +8,11 @@ namespace JiShe.CollectBus.IoTDB.Provider
     /// </summary>
     public class DeviceMetadata
     {
+        /// <summary>
+        /// IoTDB实体类型枚举
+        /// </summary>
+        public EntityTypeEnum EntityType  { get; set; }
+
         /// <summary>
         /// 是否有单测量值
         /// </summary>
diff --git a/modules/JiShe.CollectBus.IoTDB/Provider/DevicePathBuilder.cs b/modules/JiShe.CollectBus.IoTDB/Provider/DevicePathBuilder.cs
index 46ce091..b78dfa3 100644
--- a/modules/JiShe.CollectBus.IoTDB/Provider/DevicePathBuilder.cs
+++ b/modules/JiShe.CollectBus.IoTDB/Provider/DevicePathBuilder.cs
@@ -13,7 +13,7 @@
         /// <returns></returns>
         public static string GetDevicePath<T>(T entity) where T : IoTEntity
         {
-            return $"root.{entity.SystemName.ToLower()}.`{entity.ProjectCode}`.`{entity.DeviceId}`";
+            return $"root.{entity.SystemName.ToLower()}.`{entity.ProjectCode}`.`{entity.DeviceType}`.`{entity.DeviceId}`";
         }
 
 
diff --git a/modules/JiShe.CollectBus.IoTDB/Provider/IoTDBProvider.cs b/modules/JiShe.CollectBus.IoTDB/Provider/IoTDBProvider.cs
index 9e18ac8..468506a 100644
--- a/modules/JiShe.CollectBus.IoTDB/Provider/IoTDBProvider.cs
+++ b/modules/JiShe.CollectBus.IoTDB/Provider/IoTDBProvider.cs
@@ -1,4 +1,5 @@
-using System.Collections.Concurrent;
+using System;
+using System.Collections.Concurrent;
 using System.Reflection;
 using System.Text;
 using Apache.IoTDB;
@@ -9,6 +10,7 @@ using JiShe.CollectBus.IoTDB.Context;
 using JiShe.CollectBus.IoTDB.Interface;
 using JiShe.CollectBus.IoTDB.Options;
 using Microsoft.Extensions.Logging;
+using Volo.Abp.Domain.Entities;
 
 namespace JiShe.CollectBus.IoTDB.Provider
 {
@@ -139,66 +141,98 @@ namespace JiShe.CollectBus.IoTDB.Provider
             List<string> tempColumnNames = new List<string>();
             tempColumnNames.AddRange(metadata.ColumnNames);
 
-            foreach (var entity in entities)
+            var entityTypeAttribute = typeof(T).GetCustomAttribute<EntityTypeAttribute>();
+
+            if (entityTypeAttribute == null)
             {
-                timestamps.Add(entity.Timestamps);
-                var rowValues = new List<object>();
-                foreach (var measurement in tempColumnNames)
+                throw new ArgumentException($"{nameof(BuildTablet)} 构建存储结构{nameof(Tablet)}时 {nameof(T)}的EntityType 没有指定，属于异常情况，-101");
+            }
+
+            if (metadata.EntityType != entityTypeAttribute.EntityType)
+            {
+                throw new ArgumentException($"{nameof(BuildTablet)} 构建存储结构{nameof(Tablet)}时 {nameof(T)}的EntityType 和{nameof(DeviceMetadata)}的 EntityType 不一致，属于异常情况，-102");
+            }
+
+            if(metadata.EntityType == Enums.EntityTypeEnum.TreeModel && _runtimeContext.UseTableSessionPool == true)
+            {
+                throw new ArgumentException($"{nameof(BuildTablet)} 构建存储结构{nameof(Tablet)}时 tree模型不能使用table模型Session连接，属于异常情况，-103");
+            }
+            else if (metadata.EntityType == Enums.EntityTypeEnum.TableModel && _runtimeContext.UseTableSessionPool == false)
+            {
+                throw new ArgumentException($"{nameof(BuildTablet)} 构建存储结构{nameof(Tablet)}时 table模型不能使用tree模型Session连接，属于异常情况，-104");
+            }
+
+
+                foreach (var entity in entities)
                 {
+                    timestamps.Add(entity.Timestamps);
+                    var rowValues = new List<object>();
 
-                    PropertyInfo propertyInfo = typeof(T).GetProperty(measurement);
-                    if (propertyInfo == null)
+                    foreach (var measurement in tempColumnNames)
                     {
-                        throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，没有找到{measurement}属性，属于异常情况，-101。");
-                    }
 
-                    var value = propertyInfo.GetValue(entity);
-                    if (propertyInfo.IsDefined(typeof(SingleMeasuringAttribute), false) && value != null)//表示当前对象是单测点模式
-                    {
-                        Type tupleType = value.GetType();
-                        Type[] tupleArgs = tupleType.GetGenericArguments();
-                        Type item2Type = tupleArgs[1]; // T 的实际类型
-                        var item1 = tupleType.GetProperty("Item1")!.GetValue(value);
-                        var item2 = tupleType.GetProperty("Item2")!.GetValue(value);
-                        if (item1 == null || item2 == null)
+                        PropertyInfo propertyInfo = typeof(T).GetProperty(measurement);
+                        if (propertyInfo == null)
                         {
-                            throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，单测点模式构建失败，没有获取测点名称或者测点值，-102。");
+                            throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，没有找到{measurement}属性，属于异常情况，-101。");
                         }
 
-                        var indexOf = metadata.ColumnNames.IndexOf(measurement);
-                        metadata.ColumnNames[indexOf] = (string)item1!;
-                         
-                        rowValues.Add(item2);
-
-                    }
-                    else
-                    {
-                        if (value != null)
+                        var value = propertyInfo.GetValue(entity);
+                        if (propertyInfo.IsDefined(typeof(SingleMeasuringAttribute), false) && metadata.IsSingleMeasuring == true)//表示当前对象是单测点模式
                         {
-                            rowValues.Add(value);
+                            if (value != null)
+                            {
+                                Type tupleType = value.GetType();
+                                Type[] tupleArgs = tupleType.GetGenericArguments();
+                                Type item2Type = tupleArgs[1]; // T 的实际类型
+                                var item1 = tupleType.GetProperty("Item1")!.GetValue(value);
+                                var item2 = tupleType.GetProperty("Item2")!.GetValue(value);
+                                if (item1 == null || item2 == null)
+                                {
+                                    throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，单测点模式构建失败，没有获取测点名称或者测点值，-102。");
+                                }
+
+                                var indexOf = metadata.ColumnNames.IndexOf(measurement);
+                                metadata.ColumnNames[indexOf] = (string)item1!;
+
+                                rowValues.Add(item2);
+                            }
+                            else
+                            {
+                                rowValues.Add(null);
+                            }
                         }
                         else
                         {
-                            //填充默认数据值
-                            DataTypeDefaultValueMap.TryGetValue(propertyInfo.PropertyType.Name, out object defaultValue);
 
-                            rowValues.Add(defaultValue);
+                            rowValues.Add(value);
+
+                            //if (value != null)
+                            //{
+                            //    rowValues.Add(value);
+                            //}
+                            //else
+                            //{
+                            //    ////填充默认数据值
+                            //    //DataTypeDefaultValueMap.TryGetValue(propertyInfo.PropertyType.Name, out object defaultValue);
+
+                            //    rowValues.Add(null);
+                            //}
                         }
+
                     }
 
-                }
+                    values.Add(rowValues);
 
-                values.Add(rowValues);
-
-                if (!_runtimeContext.UseTableSessionPool)//树模型
-                {
-                    devicePaths.Add(DevicePathBuilder.GetDevicePath(entity));
+                    if (!_runtimeContext.UseTableSessionPool)//树模型
+                    {
+                        devicePaths.Add(DevicePathBuilder.GetDevicePath(entity));
+                    }
+                    else
+                    {
+                        devicePaths.Add(DevicePathBuilder.GetTableName<T>());
+                    }
                 }
-                else
-                {
-                    devicePaths.Add(DevicePathBuilder.GetTableName<T>());
-                }
-            }
 
             if (devicePaths.Count > 1)
             {
@@ -213,14 +247,16 @@ namespace JiShe.CollectBus.IoTDB.Provider
         /// <summary>
         /// 构建tree模型的Tablet
         /// </summary>
-        /// <param name="metadata"></param>
-        /// <param name="devicePath"></param>
-        /// <param name="values"></param>
-        /// <param name="timestamps"></param>
+        /// <param name="metadata">已解析的设备数据元数据</param>
+        /// <param name="devicePath">设备路径</param>
+        /// <param name="values">数据集合</param>
+        /// <param name="timestamps">时间戳集合</param>
         /// <returns></returns>
         private Tablet BuildSessionTablet(DeviceMetadata metadata, string devicePath,
        List<List<object>> values, List<long> timestamps)
         {
+            //todo 树模型需要去掉TAG类型和ATTRIBUTE类型的字段，只需要保留FIELD类型字段即可
+
             return new Tablet(
                 devicePath,
                 metadata.ColumnNames,
@@ -233,16 +269,16 @@ namespace JiShe.CollectBus.IoTDB.Provider
         /// <summary>
         /// 构建表模型的Tablet
         /// </summary>
-        /// <param name="metadata"></param>
-        /// <param name="devicePath"></param>
-        /// <param name="values"></param>
-        /// <param name="timestamps"></param>
+        /// <param name="metadata">已解析的设备数据元数据</param>
+        /// <param name="tableName">表名称</param>
+        /// <param name="values">数据集合</param>
+        /// <param name="timestamps">时间戳集合</param>
         /// <returns></returns>
-        private Tablet BuildTableSessionTablet(DeviceMetadata metadata, string devicePath,
+        private Tablet BuildTableSessionTablet(DeviceMetadata metadata, string tableName,
             List<List<object>> values, List<long> timestamps)
         {
             var tablet = new Tablet(
-                devicePath,
+                tableName,
                 metadata.ColumnNames,
                 metadata.ColumnCategories,
                 metadata.DataTypes,
@@ -393,33 +429,35 @@ namespace JiShe.CollectBus.IoTDB.Provider
         private DeviceMetadata GetMetadata<T>() where T : IoTEntity
         {
 
-            var columns = CollectColumnMetadata(typeof(T));
-            var metadata = BuildDeviceMetadata(columns);
-
-            return _metadataCache.AddOrUpdate(
-                typeof(T),
-                addValueFactory: t => metadata, // 如果键不存在，用此值添加
-                updateValueFactory: (t, existingValue) =>
+            if (_runtimeContext.UseTableSessionPool)//表模型
+            {
+                return _metadataCache.GetOrAdd(typeof(T), type =>
                 {
-                    var columns = CollectColumnMetadata(t);
-                    var metadata = BuildDeviceMetadata(columns);
-                    
-                    //对现有值 existingValue 进行修改，返回新值
-                    existingValue.ColumnNames = metadata.ColumnNames;
-                    return existingValue;
-                }
-            );
+                    var columns = CollectColumnMetadata(type);
+                    var metadata = BuildDeviceMetadata<T>(columns);
+                    return metadata;
+                });
+            }
+            else
+            {
+                // 树模型
+                var columns = CollectColumnMetadata(typeof(T));
+                var metadata = BuildDeviceMetadata<T>(columns);
 
-            //return _metadataCache.GetOrAdd(typeof(T), type =>
-            //{
-            //    var columns = CollectColumnMetadata(type);
-            //    var metadata = BuildDeviceMetadata(columns);
-            //    //if (metadata.IsSingleMeasuring)
-            //    //{
-            //    //    _metadataCache.Remove(typeof(T));
-            //    //}
-            //    return metadata;
-            //});
+                return _metadataCache.AddOrUpdate(
+                    typeof(T),
+                    addValueFactory: t => metadata, // 如果键不存在，用此值添加
+                    updateValueFactory: (t, existingValue) =>
+                    {
+                        var columns = CollectColumnMetadata(t);
+                        var metadata = BuildDeviceMetadata<T>(columns);
+
+                        //对现有值 existingValue 进行修改，返回新值
+                        existingValue.ColumnNames = metadata.ColumnNames;
+                        return existingValue;
+                    }
+                );
+            }
         }
 
         /// <summary>
@@ -483,9 +521,10 @@ namespace JiShe.CollectBus.IoTDB.Provider
         /// <summary>
         /// 构建设备元数据
         /// </summary>
-        /// <param name="columns"></param>
+        /// <param name="typeInfo">待解析的类</param>
+        /// <param name="columns">已处理好的数据列</param>
         /// <returns></returns>
-        private DeviceMetadata BuildDeviceMetadata(List<ColumnInfo> columns)
+        private DeviceMetadata BuildDeviceMetadata<T>(List<ColumnInfo> columns) where T : IoTEntity
         {
             var metadata = new DeviceMetadata();
 
@@ -499,11 +538,20 @@ namespace JiShe.CollectBus.IoTDB.Provider
             var groupedColumns = columns
                 .GroupBy(c => c.Category)
                 .ToDictionary(g => g.Key, g => g.ToList());
-
+             
             ProcessCategory(groupedColumns, ColumnCategory.TAG, metadata);
             ProcessCategory(groupedColumns, ColumnCategory.ATTRIBUTE, metadata);
             ProcessCategory(groupedColumns, ColumnCategory.FIELD, metadata);
 
+            var entityTypeAttribute = typeof(T).GetCustomAttribute<EntityTypeAttribute>();
+
+            if (entityTypeAttribute == null)
+            {
+                throw new ArgumentException($"{nameof(BuildDeviceMetadata)} 构建设备元数据时 {nameof(IoTEntity)}的EntityType 没有指定，属于异常情况，-101");
+            }
+
+            metadata.EntityType = entityTypeAttribute.EntityType;
+
             return metadata;
         }
 
diff --git a/modules/JiShe.CollectBus.IoTDB/Provider/IoTEntity.cs b/modules/JiShe.CollectBus.IoTDB/Provider/IoTEntity.cs
index 39a584d..fc965e6 100644
--- a/modules/JiShe.CollectBus.IoTDB/Provider/IoTEntity.cs
+++ b/modules/JiShe.CollectBus.IoTDB/Provider/IoTEntity.cs
@@ -11,29 +11,29 @@ namespace JiShe.CollectBus.IoTDB.Provider
         /// 系统名称
         /// </summary>
         [TAGColumn]
-        public string SystemName { get; set; }
+        public required string SystemName { get; set; }
 
         /// <summary>
         /// 项目编码
         /// </summary>
         [TAGColumn]
-        public string ProjectCode { get; set; }
+        public required string ProjectCode { get; set; }
 
         /// <summary>
         /// 设备类型集中器、电表、水表、流量计、传感器等
         /// </summary>
         [TAGColumn]
-        public string DeviceType { get; set; }
+        public required string DeviceType { get; set; }
 
         /// <summary>
         /// 设备ID
         /// </summary>
         [TAGColumn]
-        public string DeviceId { get; set; }
+        public required string DeviceId { get; set; }
 
         /// <summary>
         /// 当前时间戳，单位毫秒
         /// </summary>
-        public long Timestamps { get; set; } = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        public required long Timestamps { get; set; } = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
     }
 }
diff --git a/services/JiShe.CollectBus.Application/RedisDataCache/RedisDataCacheService.cs b/services/JiShe.CollectBus.Application/RedisDataCache/RedisDataCacheService.cs
index 1a056a7..625c1e6 100644
--- a/services/JiShe.CollectBus.Application/RedisDataCache/RedisDataCacheService.cs
+++ b/services/JiShe.CollectBus.Application/RedisDataCache/RedisDataCacheService.cs
@@ -42,6 +42,8 @@ namespace JiShe.CollectBus.RedisDataCache
             Instance = _freeRedisProvider.Instance;
         }
 
+        //todo 单个数据查询
+
         /// <summary>
         /// 单个添加数据
         /// </summary>
diff --git a/services/JiShe.CollectBus.Application/Samples/SampleAppService.cs b/services/JiShe.CollectBus.Application/Samples/SampleAppService.cs
index 23cfdfb..4970b7f 100644
--- a/services/JiShe.CollectBus.Application/Samples/SampleAppService.cs
+++ b/services/JiShe.CollectBus.Application/Samples/SampleAppService.cs
@@ -105,6 +105,7 @@ public class SampleAppService : CollectBusAppService, ISampleAppService, IKafkaS
         await _iotDBProvider.InsertAsync(meter2);
 
         _dbContext.UseTableSessionPool = true;
+        var testTime = Convert.ToDateTime("2025-04-21 08:32:55");
 
         ElectricityMeter meter = new ElectricityMeter()
         {
@@ -115,7 +116,7 @@ public class SampleAppService : CollectBusAppService, ISampleAppService, IKafkaS
             MeterModel = "DDZY-1980",
             ProjectCode = "10059",
             Voltage = 10,
-            Timestamps = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(),
+            Timestamps = new DateTimeOffset(testTime).ToUnixTimeMilliseconds(),
         };
         await _iotDBProvider.InsertAsync(meter);
     }
diff --git a/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs b/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
index cd06eea..3c2b652 100644
--- a/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
+++ b/services/JiShe.CollectBus.Application/ScheduledMeterReading/BasicScheduledMeterReadingService.cs
@@ -27,8 +27,6 @@ using System.Diagnostics;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using static FreeSql.Internal.GlobalFilter;
-using static System.Runtime.InteropServices.JavaScript.JSType;
 
 namespace JiShe.CollectBus.ScheduledMeterReading
 {
diff --git a/services/JiShe.CollectBus.Domain/Ammeters/ElectricityMeter.cs b/services/JiShe.CollectBus.Domain/Ammeters/ElectricityMeter.cs
index 2d9cc67..a6c09dc 100644
--- a/services/JiShe.CollectBus.Domain/Ammeters/ElectricityMeter.cs
+++ b/services/JiShe.CollectBus.Domain/Ammeters/ElectricityMeter.cs
@@ -33,5 +33,8 @@ namespace JiShe.CollectBus.Ammeters
 
         [FIELDColumn]
         public double Power => Voltage * Current;
+
+        [FIELDColumn]
+        public double? Currentd { get; set; }
     }
 }