diff --git a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
index c345d88..c60be5e 100644
--- a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
+++ b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
@@ -658,7 +658,21 @@ namespace HealthMonitor.Service.Resolver
 
             var fetalHeartRate = SafeType.SafeInt(phrValue * coefficient);
             // 胎心的最大值调整为220，超过都按该值220输出
-            fetalHeartRate = fetalHeartRate>= 220 ? 220 : fetalHeartRate;
+           // fetalHeartRate = fetalHeartRate>= 220 ? 220 : fetalHeartRate;
+
+            if (fetalHeartRate > 220)
+            {
+                fetalHeartRate = 220;
+                _logger.LogWarning($"{heartRate.Serialno} 大于220,按220输出，计算因子：孕妇心率 {heartRate.HeartRate},系数 {coefficient}，周期 周期:{statStartTime.ToString("yyyy-MM-dd HH:mm:ss")}----{statEndTime.ToString("yyyy-MM-dd HH:mm:ss")}");
+            }
+
+            // 胎心的最小值调整为90，超过都按该值90
+            if (fetalHeartRate < 90)
+            {
+                fetalHeartRate = 90;
+                _logger.LogWarning($"{heartRate.Serialno} 小于90,按90输出，计算因子：孕妇心率 {heartRate.HeartRate},系数 {coefficient}，周期 周期:{statStartTime.ToString("yyyy-MM-dd HH:mm:ss")}----{statEndTime.ToString("yyyy-MM-dd HH:mm:ss")}");
+            }
+
 
             var isAbnormal = fetalHeartRate > upperAlarmThreshold ? 1 : (fetalHeartRate < lowerAlarmThreshold ? 2 : 0);
             var phrFreqstatus = await _deviceCacheMgr.GetPregnancyHeartRateFreqStatusAsync(heartRate.Serialno);