diff --git a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
index 7a9e61e..5ac7c95 100644
--- a/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
+++ b/HealthMonitor.Service/Resolver/PregnancyHeartRateResolver.cs
@@ -513,7 +513,7 @@ namespace HealthMonitor.Service.Resolver
                             // 正常心率
                             else
                             {
-                                _logger.LogInformation($"{heartRate.Serialno} 计算胎心数据");
+                               
                                 // 上15分钟的数据
                                 // 获取当前时间
                                 DateTime nowInterval = (DateTime)heartRate.LastUpdate!;
@@ -542,11 +542,20 @@ namespace HealthMonitor.Service.Resolver
 
                                 var daysPhr = await _serviceTDengine.GetBySerialNoAsync<PregnancyHeartRateModel>(heartRate.Serialno, 7);
 
+                                var normalPhrStatStartTime = nextInterval;
+
+                                var normalPhrStatEndTime = nextInterval.AddMinutes(-intervalFHR);
+
+                                _logger.LogInformation($"{heartRate.Serialno} 计算胎心数据, 周期:{normalPhrStatStartTime}-{normalPhrStatEndTime} ");
                                 var filteredPhr = daysPhr
                                     // 使用 last_update 下一刻
-                                    .Where(i => i.LastUpdate <= nextInterval && i.LastUpdate >= nextInterval.AddMinutes(-intervalFHR))
+                                    .Where(i => i.LastUpdate <= normalPhrStatStartTime && i.LastUpdate >= normalPhrStatEndTime)
                                     .ToList();
-
+                                if (filteredPhr.Count == 0)
+                                {
+                                    _logger.LogWarning($"{heartRate.Serialno}  周期:{normalPhrStatStartTime}-{normalPhrStatEndTime} 孕妇心率数据不足,{filteredPhr.Count}条记录");
+                                    return;
+                                }
                                 var phrValue = filteredPhr.Count == 1
                                     ? filteredPhr.First().PregnancyHeartRate
                                     : filteredPhr.Average(i => i.PregnancyHeartRate);