diff --git a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
index 26bbbb5..5402a04 100644
--- a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
+++ b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
@@ -590,8 +590,9 @@ namespace HealthMonitor.Service.Resolver
         private async Task SaveAndPushFetalHeartRateAsync(HisGpsHeartRate heartRate, PregnancyCommonHeartRateModel commonPHR, int upperAlarmThreshold, int lowerAlarmThreshold, double phrValue, string sampleTime, DateTime statStartTime, DateTime statEndTime)
         {
             // 计算胎心=孕妇心率*系数
+            /**
             var fetalHeartRate = SafeType.SafeInt(phrValue * commonPHR?.StatModeAvgFprCoefficient!);
-            //fetalHeartRate = fetalHeartRate > 220 ? 220 : fetalHeartRate; // 胎心的最大值调整为220，超过都按该值220输出
+            fetalHeartRate = fetalHeartRate > 220 ? 220 : fetalHeartRate; // 胎心的最大值调整为220，超过都按该值220输出
             if (fetalHeartRate >= 220)
             {
                 // 先使用最小系数计算
@@ -609,6 +610,39 @@ namespace HealthMonitor.Service.Resolver
                     _logger.LogWarning($"{heartRate.Serialno} 使用所有系数都不能放映实际,建模数据可能出现异常,请检查");
                 }
             }
+            */
+
+            #region  胎心系数使用基于心率与中位数对比
+            var coefficient = 0f;
+            // 孕妇心率少于中位数,取StatMinValueFprCoefficient
+            if (heartRate.HeartRate < commonPHR!.Mode)
+            {
+                coefficient = commonPHR.StatMinValueFprCoefficient!;
+                _logger.LogInformation($"{heartRate.Serialno} 孕妇心率少于中位数,使用最小值系数 {coefficient}");
+            }
+            // 孕妇心率大于中位数,取StatMaxValueFprCoefficient与StatModeAvgFprCoefficient中少的那个
+            else if (heartRate.HeartRate > commonPHR.Mode)
+            {
+                if (commonPHR.StatModeAvgFprCoefficient > commonPHR.StatMaxValueFprCoefficient)
+                {
+                    coefficient = commonPHR.StatMaxValueFprCoefficient!;
+                    _logger.LogInformation($"{heartRate.Serialno} 孕妇心率大于中位数,使用最大值系数 {coefficient}");
+                }
+                else
+                {
+                    coefficient = commonPHR.StatModeAvgFprCoefficient!;
+                    _logger.LogInformation($"{heartRate.Serialno} 孕妇心率大于中位数,使用均值系数 {coefficient}");
+                }
+            }
+            else
+            {
+                coefficient = commonPHR.StatModeAvgFprCoefficient;
+                _logger.LogInformation($"{heartRate.Serialno} 孕妇心率等于中位数,使用均值系数 {coefficient}");
+            }
+            #endregion
+
+            var fetalHeartRate = SafeType.SafeInt(phrValue * coefficient);
+
 
             var isAbnormal = fetalHeartRate > upperAlarmThreshold ? 1 : (fetalHeartRate < lowerAlarmThreshold ? 2 : 0);
             var phrFreqstatus = await _deviceCacheMgr.GetPregnancyHeartRateFreqStatusAsync(heartRate.Serialno);