diff --git a/HealthMonitor.Service/Biz/db/TDengineService.cs b/HealthMonitor.Service/Biz/db/TDengineService.cs
index 2b080d9..bfc7062 100644
--- a/HealthMonitor.Service/Biz/db/TDengineService.cs
+++ b/HealthMonitor.Service/Biz/db/TDengineService.cs
@@ -522,12 +522,12 @@ namespace HealthMonitor.Service.Biz.db
         }
 
         /// <summary>
-        /// 
+        /// 去除最大值和最小值各一个(列表的头和尾),再去除异常值
         /// </summary>
         /// <param name="systolicRefValue"></param>
         /// <param name="hmBpParser"></param>
         /// <returns></returns>
-        public  decimal[] AverageAfterRemovingOneMinMaxRef(int systolicRefValue, ParseTDengineRestResponse<BloodPressureModel>? hmBpParser)
+        public decimal[] AverageAfterRemovingOneMinMaxRef(int systolicRefValue, ParseTDengineRestResponse<BloodPressureModel>? hmBpParser)
         {
             var sortedList = hmBpParser?.Select(i => i)
                                         .Where(i => i.IsDisplay.Equals(true))
@@ -558,5 +558,43 @@ namespace HealthMonitor.Service.Biz.db
 
             return new decimal[] { (decimal)systolicAvg!, (decimal)diastolicAvg! };
         }
+
+        /// <summary>
+        /// 去除最大值和最小值各一个(列表的头和尾)
+        /// </summary>
+        /// <param name="systolicRefValue"></param>
+        /// <param name="hmBpParser"></param>
+        /// <returns></returns>
+        public decimal[] AverageAfterRemovingOneMinMaxRef(ParseTDengineRestResponse<BloodPressureModel>? hmBpParser)
+        {
+            var sortedList = hmBpParser?.Select(i => i)
+                                        .Where(i => i.IsDisplay.Equals(true))
+                                        .OrderByDescending(i => i.SystolicValue)
+                                        .ThenByDescending(i => i.DiastolicValue)
+                                        .ToList();
+            _logger.LogInformation($"计算时间段排列数据集:{JsonConvert.SerializeObject(sortedList)}");
+            // 去除最大值和最小值各一个(列表的头和尾)
+            var trimmedList = sortedList?
+                                .Skip(1)
+                                .Take(sortedList.Count - 2)
+                                .ToList();
+
+            _logger.LogInformation($"计算去除最大值和最小值各一个数据集:{JsonConvert.SerializeObject(trimmedList)}");
+
+            var filteredList = trimmedList?.ToList();
+
+            _logger.LogInformation($"计算除异常值个数据集:{JsonConvert.SerializeObject(filteredList)}");
+
+            if (filteredList?.Count < 2)
+            {
+                // throw new ArgumentException("数据不够不能计算");
+                // 平均值为0，说明数据不足，不能计算增量值
+                return new decimal[] { 0M, 0M };
+            }
+            var systolicAvg = filteredList?.Select(bp => bp.SystolicValue).Average();
+            var diastolicAvg = filteredList?.Select(bp => bp.DiastolicValue).Average();
+
+            return new decimal[] { (decimal)systolicAvg!, (decimal)diastolicAvg! };
+        }
     }
 }
diff --git a/HealthMonitor.WebApi/Controllers/HealthMonitor/HmBloodPressConfigManualCalibrationController.cs b/HealthMonitor.WebApi/Controllers/HealthMonitor/HmBloodPressConfigManualCalibrationController.cs
index 52b721d..485ef1c 100644
--- a/HealthMonitor.WebApi/Controllers/HealthMonitor/HmBloodPressConfigManualCalibrationController.cs
+++ b/HealthMonitor.WebApi/Controllers/HealthMonitor/HmBloodPressConfigManualCalibrationController.cs
@@ -192,7 +192,7 @@ namespace HealthMonitor.WebApi.Controllers.HealthMonitor
                 {
                     //systolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.SystolicValue, SafeType.SafeInt(systolicRefValue!)))!;
                     //diastolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.DiastolicValue, SafeType.SafeInt(diastolicRefValue!)))!;
-                    var avgs = _serviceTDengine.AverageAfterRemovingOneMinMaxRef(SafeType.SafeInt(systolicRefValue!), hmBpParser!);
+                    var avgs = _serviceTDengine.AverageAfterRemovingOneMinMaxRef(hmBpParser!);
                     systolicAvg = avgs[0];
                     diastolicAvg = avgs[1];
                     // 平均值为0，说明数据不足，不能计算增量值
@@ -219,6 +219,12 @@ namespace HealthMonitor.WebApi.Controllers.HealthMonitor
                         var statNow = DateTime.Now;
                         return await IotSetBloodPressCalibrationConfigResponseAsync(imei, systolicRefValue, diastolicRefValue, 0, 0, 0, 0, 0, 0, statNow, statNow).ConfigureAwait(false);
                     }
+                    // 除最大值和最小值后的平均值与标定值差值少于4后（当天计算出该结果则也不产生增量调整），就不再进行增量值调整了。
+                    if (systolicAvg-systolicRefValue < 4)
+                    {
+                        _logger.LogInformation($"除最大值和最小值后的平均值与标定值差值少于4后，不再进行增量值调整");
+                        return ApiResponse<object>.Fail(502, $"平均值与标定值差值少于4，不调整增量值");
+                    }
 
                     // 增量值=（标定值-平均值）* 0.25
                     var currentSystolicInc = (int)((systolicRefValue - systolicAvg) * systolicAvgOffset)!;
diff --git a/HealthMonitor.WebApi/Worker.cs b/HealthMonitor.WebApi/Worker.cs
index 3c59d66..57bcbed 100644
--- a/HealthMonitor.WebApi/Worker.cs
+++ b/HealthMonitor.WebApi/Worker.cs
@@ -318,7 +318,7 @@ namespace HealthMonitor.WebApi
                                         //systolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.SystolicValue, SafeType.SafeInt(systolicRefValue!)))!;
                                         //diastolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.DiastolicValue, SafeType.SafeInt(diastolicRefValue!)))!;
 
-                                        var avgs = _serviceTDengine.AverageAfterRemovingOneMinMaxRef(SafeType.SafeInt(systolicRefValue!), hmBpParser!);
+                                        var avgs = _serviceTDengine.AverageAfterRemovingOneMinMaxRef(hmBpParser!);
                                         systolicAvg = avgs[0];
                                         diastolicAvg = avgs[1];
 
@@ -332,6 +332,12 @@ namespace HealthMonitor.WebApi
                                             _logger.LogInformation($"{imeiDel}--{nameof(Worker)} 没有足够的数据样本计算平均值，不会定时下发");
                                             break;
                                         }
+                                        // 除最大值和最小值后的平均值与标定值差值少于4后（当天计算出该结果则也不产生增量调整），就不再进行增量值调整了。
+                                        if (systolicAvg-systolicRefValue < 4)
+                                        {
+                                            _logger.LogInformation($"除最大值和最小值后的平均值与标定值差值少于4后，不再进行增量值调整");
+                                            break;
+                                        }
 
                                         // 增量值=（标定值-平均值）* 0.25
                                         var currentSystolicInc = (int)((systolicRefValue - systolicAvg) * systolicAvgOffset)!;