diff --git a/DMS.Application/Models/VariableContext.cs b/DMS.Application/Models/VariableContext.cs
index 4a81a1d..170d8c9 100644
--- a/DMS.Application/Models/VariableContext.cs
+++ b/DMS.Application/Models/VariableContext.cs
@@ -7,10 +7,10 @@ namespace DMS.Application.Models
     {
         public VariableDto Data { get; set; }
         
-        public object NewValue { get; set; }
+        public string NewValue { get; set; }
         public bool IsHandled { get; set; }
 
-        public VariableContext(VariableDto data, object newValue=null)
+        public VariableContext(VariableDto data, string newValue="")
         {
             Data = data;
             IsHandled = false; // 默认未处理
diff --git a/DMS.Application/Services/Processors/CheckValueChangedProcessor.cs b/DMS.Application/Services/Processors/CheckValueChangedProcessor.cs
index c93c0e6..40aa75c 100644
--- a/DMS.Application/Services/Processors/CheckValueChangedProcessor.cs
+++ b/DMS.Application/Services/Processors/CheckValueChangedProcessor.cs
@@ -7,9 +7,7 @@ namespace DMS.Application.Services.Processors;
 public class CheckValueChangedProcessor : IVariableProcessor
 {
 
-    public CheckValueChangedProcessor()
-    {
-    }
+
     public Task ProcessAsync(VariableContext context)
     {
         // Variable newVariable = context.Data;
diff --git a/DMS.Application/Services/Processors/UpdateDbVariableProcessor.cs b/DMS.Application/Services/Processors/UpdateDbVariableProcessor.cs
index 72f212f..d619b39 100644
--- a/DMS.Application/Services/Processors/UpdateDbVariableProcessor.cs
+++ b/DMS.Application/Services/Processors/UpdateDbVariableProcessor.cs
@@ -1,29 +1,103 @@
-using System.Threading.Tasks;
+using System.Collections.Concurrent;
+using AutoMapper;
+using DMS.Application.DTOs;
 using DMS.Application.Interfaces;
 using DMS.Application.Models;
+using DMS.Core.Interfaces;
 using DMS.Core.Models;
 using Microsoft.Extensions.Logging;
 
 namespace DMS.Application.Services.Processors;
 
-public class UpdateDbVariableProcessor : IVariableProcessor
+/// <summary>
+/// 负责将变量的当前值批量更新到数据库。
+/// </summary>
+public class UpdateDbVariableProcessor : IVariableProcessor, IDisposable
 {
-    private readonly ILogger<UpdateDbVariableProcessor> _logger;
+    private const int BATCH_SIZE = 50; // 批量更新的阈值
+    private const int TIMER_INTERVAL_MS = 30 * 1000; // 30秒
 
-    public UpdateDbVariableProcessor(ILogger<UpdateDbVariableProcessor> logger)
+    private readonly ConcurrentQueue<VariableDto> _queue = new();
+    private readonly Timer _timer;
+    private readonly IRepositoryManager _repositoryManager;
+    private readonly ILogger<UpdateDbVariableProcessor> _logger;
+    private readonly IMapper _mapper;
+
+    public UpdateDbVariableProcessor(IRepositoryManager repositoryManager, ILogger<UpdateDbVariableProcessor> logger, IMapper mapper)
     {
+        _repositoryManager = repositoryManager;
         _logger = logger;
+        _mapper = mapper;
+
+        _timer = new Timer(async _ => await FlushQueueToDatabase(), null, Timeout.Infinite, Timeout.Infinite);
+        _timer.Change(TIMER_INTERVAL_MS, TIMER_INTERVAL_MS); // 启动定时器
+        
+        _logger.LogInformation("UpdateDbVariableProcessor 初始化，批量大小 {BatchSize}，定时器间隔 {TimerInterval}ms", BATCH_SIZE, TIMER_INTERVAL_MS);
     }
 
     public async Task ProcessAsync(VariableContext context)
     {
-        try
+        // 检查新值是否有效，以及是否与旧值不同
+        if (context.NewValue == null || Equals(context.Data.DataValue, context.NewValue?.ToString()))
         {
-           
+            return; // 值未变或新值无效，跳过
         }
-        catch (Exception ex)
+
+        // 用新值更新上下文中的数据，确保处理链的后续环节能看到最新值
+        context.Data.DataValue = context.NewValue?.ToString();
+
+        _queue.Enqueue(context.Data);
+        
+        if (_queue.Count >= BATCH_SIZE)
         {
-            _logger.LogError(ex, $"更新数据库变量 {context.Data.Name} 失败: {ex.Message}");
+            _logger.LogInformation("达到批量大小 ({BatchSize})，正在刷新队列到数据库", BATCH_SIZE);
+            await FlushQueueToDatabase();
         }
     }
+
+    private async Task FlushQueueToDatabase()
+    {
+        // 停止定时器，防止在写入过程中再次触发
+        _timer.Change(Timeout.Infinite, Timeout.Infinite);
+
+        var itemsToProcess = new List<VariableDto>();
+        while (_queue.TryDequeue(out var item))
+        {
+            itemsToProcess.Add(item);
+        }
+
+        if (itemsToProcess.Any())
+        {
+            // 去重：对于同一个变量，我们只关心其在本次批次中的最后一次更新值
+            var uniqueItems = itemsToProcess
+                .GroupBy(v => v.Id)
+                .Select(g => g.Last())
+                .ToList();
+
+            try
+            {
+                // **依赖于仓储层实现真正的批量更新**
+                var variableModels = _mapper.Map<IEnumerable<Variable>>(uniqueItems);
+                await _repositoryManager.Variables.UpdateBatchAsync(variableModels);
+                _logger.LogInformation("成功批量更新 {Count} 条变量记录到数据库", uniqueItems.Count);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "批量更新 {Count} 条变量记录时发生错误: {ErrorMessage}", uniqueItems.Count, ex.Message);
+                // 错误处理策略：可以考虑将未成功的项重新入队，或记录到死信队列
+            }
+        }
+        
+        // 重新启动定时器
+        _timer.Change(TIMER_INTERVAL_MS, TIMER_INTERVAL_MS);
+    }
+
+    public void Dispose()
+    {
+        _logger.LogInformation("正在释放 UpdateDbVariableProcessor，刷新队列中剩余的 {Count} 个项目", _queue.Count);
+        _timer?.Dispose();
+        // 在 Dispose 时，尝试将剩余数据写入数据库
+        FlushQueueToDatabase().Wait();
+        _logger.LogInformation("UpdateDbVariableProcessor 已释放");
+    }
 }
\ No newline at end of file
diff --git a/DMS.Application/Services/Processors/ValueConvertProcessor.cs b/DMS.Application/Services/Processors/ValueConvertProcessor.cs
index fe3c739..83abf68 100644
--- a/DMS.Application/Services/Processors/ValueConvertProcessor.cs
+++ b/DMS.Application/Services/Processors/ValueConvertProcessor.cs
@@ -1,4 +1,5 @@
-using System.Globalization;
+using System.Data;
+using System.Globalization;
 using DMS.Application.DTOs;
 using DMS.Application.Interfaces;
 using DMS.Application.Models;
@@ -14,123 +15,147 @@ public class ValueConvertProcessor : IVariableProcessor
     {
         _logger = logger;
     }
-    public async Task ProcessAsync(VariableContext context)
+
+    public Task ProcessAsync(VariableContext context)
     {
         var oldValue = context.Data.DataValue;
+
+        // 步骤 1: 将原始值转换为 DataValue 和 NumericValue
         ConvertS7ValueToStringAndNumeric(context.Data, context.NewValue);
+
+        // 步骤 2: 根据公式计算 DisplayValue
+        CalculateDisplayValue(context.Data);
+
         context.Data.UpdatedAt = DateTime.Now;
-        // 如何值没有变化则中断处理
-        if (context.Data.DataValue==oldValue)
+
+        // 如果值没有变化则中断处理链
+        if (context.Data.DataValue == oldValue)
         {
             context.IsHandled = true;
         }
+        
+        return Task.CompletedTask;
     }
+
+    /// <summary>
+    /// 根据转换公式计算用于UI显示的DisplayValue
+    /// </summary>
+    /// <param name="variable">需要处理的变量DTO</param>
+    private void CalculateDisplayValue(VariableDto variable)
+    {
+        // 默认情况下，显示值等于原始数据值
+        variable.DisplayValue = variable.DataValue;
+
+        // 如果没有转换公式，则直接返回
+        if (string.IsNullOrWhiteSpace(variable.ConversionFormula))
+        {
+            return;
+        }
+
+        try
+        {
+            // 将公式中的 'x' 替换为实际的数值
+            // 使用 InvariantCulture 确保小数点是 '.'
+            string expression = variable.ConversionFormula.ToLowerInvariant()
+                                        .Replace("x", variable.NumericValue.ToString(CultureInfo.InvariantCulture));
+
+            // 使用 DataTable.Compute 来安全地计算表达式
+            var result = new DataTable().Compute(expression, null);
+
+            // 将计算结果格式化后赋给 DisplayValue
+            if (result is double || result is decimal || result is float)
+            {
+                variable.DisplayValue = string.Format("{0:F2}", result); // 默认格式化为两位小数，可根据需要调整
+            }
+            else
+            {
+                variable.DisplayValue = result.ToString();
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, $"为变量 {variable.Name} (ID: {variable.Id}) 计算DisplayValue时出错。公式: '{variable.ConversionFormula}'");
+            // 如果计算出错，DisplayValue 将保持为原始的 DataValue，保证程序健壮性
+        }
+    }
+
     /// <summary>
     /// 将从 S7 读取的对象值转换为字符串表示和数值表示
     /// </summary>
     /// <param name="variable">关联的变量 DTO</param>
     /// <param name="value">从 S7 读取的原始对象值</param>
-    /// <returns>(字符串表示, 数值表示)</returns>
     private void ConvertS7ValueToStringAndNumeric(VariableDto variable, object value)
     {
         if (value == null)
-            return ;
+            return;
 
-        // 首先根据 value 的实际运行时类型进行匹配和转换
         string directConversion = null;
         double numericValue = 0.0;
-        bool numericParsed = false;
 
         switch (value)
         {
             case double d:
                 directConversion = d.ToString("G17", CultureInfo.InvariantCulture);
                 numericValue = d;
-                numericParsed = true;
                 break;
             case float f:
                 directConversion = f.ToString("G9", CultureInfo.InvariantCulture);
                 numericValue = f;
-                numericParsed = true;
                 break;
             case int i:
                 directConversion = i.ToString(CultureInfo.InvariantCulture);
                 numericValue = i;
-                numericParsed = true;
                 break;
             case uint ui:
                 directConversion = ui.ToString(CultureInfo.InvariantCulture);
                 numericValue = ui;
-                numericParsed = true;
                 break;
             case short s:
                 directConversion = s.ToString(CultureInfo.InvariantCulture);
                 numericValue = s;
-                numericParsed = true;
                 break;
             case ushort us:
                 directConversion = us.ToString(CultureInfo.InvariantCulture);
                 numericValue = us;
-                numericParsed = true;
                 break;
             case byte b:
                 directConversion = b.ToString(CultureInfo.InvariantCulture);
                 numericValue = b;
-                numericParsed = true;
                 break;
             case sbyte sb:
                 directConversion = sb.ToString(CultureInfo.InvariantCulture);
                 numericValue = sb;
-                numericParsed = true;
                 break;
             case long l:
                 directConversion = l.ToString(CultureInfo.InvariantCulture);
                 numericValue = l;
-                numericParsed = true;
                 break;
             case ulong ul:
                 directConversion = ul.ToString(CultureInfo.InvariantCulture);
                 numericValue = ul;
-                numericParsed = true;
                 break;
             case bool boolValue:
                 directConversion = boolValue.ToString().ToLowerInvariant();
                 numericValue = boolValue ? 1.0 : 0.0;
-                numericParsed = true;
                 break;
             case string str:
                 directConversion = str;
-                // 尝试从字符串解析数值
                 if (double.TryParse(str, NumberStyles.Float, CultureInfo.InvariantCulture, out var parsedFromStr))
                 {
                     numericValue = parsedFromStr;
-                    numericParsed = true;
                 }
                 break;
             default:
-                // 对于未预期的类型，记录日志
                 _logger.LogWarning($"变量 {variable.Name} 读取到未预期的数据类型: {value.GetType().Name}, 值: {value}");
                 directConversion = value.ToString() ?? string.Empty;
-                // 尝试从 ToString() 结果解析数值
                 if (double.TryParse(directConversion, NumberStyles.Float, CultureInfo.InvariantCulture, out var parsedFromObj))
                 {
                     numericValue = parsedFromObj;
-                    numericParsed = true;
                 }
                 break;
         }
 
-        // 如果直接转换成功，直接返回
-
-        // 如果直接转换未能解析数值，并且变量有明确的 DataType，可以尝试更精细的解析
-        // (这部分逻辑在上面的 switch 中已经处理了大部分情况，这里作为后备)
-        // 在这个实现中，我们主要依赖于 value 的实际类型进行转换，因为这通常更可靠。
-        // 如果需要，可以根据 variable.DataType 添加额外的解析逻辑。
-
-        // 返回最终结果
         variable.DataValue = directConversion ?? value.ToString() ?? string.Empty;
         variable.NumericValue = numericValue;
     }
-    
-    
 }
\ No newline at end of file
diff --git a/DMS.Core/Interfaces/Repositories/IVariableRepository.cs b/DMS.Core/Interfaces/Repositories/IVariableRepository.cs
index 73f0857..21401ac 100644
--- a/DMS.Core/Interfaces/Repositories/IVariableRepository.cs
+++ b/DMS.Core/Interfaces/Repositories/IVariableRepository.cs
@@ -25,5 +25,12 @@ namespace DMS.Core.Interfaces.Repositories
         /// <param name="opcUaNodeIds">OPC UA NodeId列表。</param>
         /// <returns>找到的变量实体列表。</returns>
         Task<List<Variable>> GetByOpcUaNodeIdsAsync(List<string> opcUaNodeIds);
+
+        /// <summary>
+        /// 异步批量更新变量。
+        /// </summary>
+        /// <param name="variables">要更新的变量实体集合。</param>
+        /// <returns>受影响的行数。</returns>
+        Task<int> UpdateBatchAsync(IEnumerable<Variable> variables);
     }
 }
\ No newline at end of file
diff --git a/DMS.Infrastructure/Repositories/VariableRepository.cs b/DMS.Infrastructure/Repositories/VariableRepository.cs
index e06235a..a825b98 100644
--- a/DMS.Infrastructure/Repositories/VariableRepository.cs
+++ b/DMS.Infrastructure/Repositories/VariableRepository.cs
@@ -170,4 +170,20 @@ public class VariableRepository : BaseRepository<DbVariable>, IVariableRepositor
                                   .ToListAsync();
         return _mapper.Map<List<Variable>>(dbVariables);
     }
+
+    /// <summary>
+    /// 异步批量更新变量。
+    /// </summary>
+    /// <param name="variables">要更新的变量实体集合。</param>
+    /// <returns>受影响的行数。</returns>
+    public async Task<int> UpdateBatchAsync(IEnumerable<Variable> variables)
+    {
+        var stopwatch = new Stopwatch();
+        stopwatch.Start();
+        var dbVariables = _mapper.Map<List<DbVariable>>(variables);
+        var result = await _dbContext.GetInstance().Updateable(dbVariables).ExecuteCommandAsync();
+        stopwatch.Stop();
+        _logger.LogInformation($"Batch update {typeof(DbVariable)}, Count={dbVariables.Count}, 耗时：{stopwatch.ElapsedMilliseconds}ms");
+        return result;
+    }
 }
\ No newline at end of file
diff --git a/DMS.Infrastructure/Services/OpcUa/OpcUaServiceManager.cs b/DMS.Infrastructure/Services/OpcUa/OpcUaServiceManager.cs
index d0466e2..b4027a8 100644
--- a/DMS.Infrastructure/Services/OpcUa/OpcUaServiceManager.cs
+++ b/DMS.Infrastructure/Services/OpcUa/OpcUaServiceManager.cs
@@ -561,7 +561,7 @@ namespace DMS.Infrastructure.Services.OpcUa
                             variable.Name, variable.Id, opcUaNode.NodeId, context.Device.Name);
 
                         // 推送到数据处理队列
-                        await _dataProcessingService.EnqueueAsync(new VariableContext(variable, opcUaNode.Value));
+                        await _dataProcessingService.EnqueueAsync(new VariableContext(variable, opcUaNode.Value?.ToString()));
                         
                         _logger.LogDebug("HandleDataChanged: 变量 {VariableName} 的值已推送到数据处理队列", variable.Name);
                         break;
diff --git a/DMS.Infrastructure/Services/S7/OptimizedS7BackgroundService.cs b/DMS.Infrastructure/Services/S7/OptimizedS7BackgroundService.cs
index 1ce3afe..f24624b 100644
--- a/DMS.Infrastructure/Services/S7/OptimizedS7BackgroundService.cs
+++ b/DMS.Infrastructure/Services/S7/OptimizedS7BackgroundService.cs
@@ -242,9 +242,8 @@ public class OptimizedS7BackgroundService : BackgroundService
             {
                 if (readResults.TryGetValue(variable.S7Address, out var value))
                 {
-
                     // 将更新后的数据推入处理队列。
-                    await _dataProcessingService.EnqueueAsync(new VariableContext(variable, value));
+                    await _dataProcessingService.EnqueueAsync(new VariableContext(variable, value?.ToString()));
                 }
                 // else
                 // {