diff --git a/HealthMonitor.WebApi/Worker.cs b/HealthMonitor.WebApi/Worker.cs
index 3639b26..5214c65 100644
--- a/HealthMonitor.WebApi/Worker.cs
+++ b/HealthMonitor.WebApi/Worker.cs
@@ -1990,7 +1990,7 @@ namespace HealthMonitor.WebApi
 
                     _logger.LogInformation($"{heartRate.Serialno} 当前统计周期{statStartTime}-{statEndTime}");
 
-                    var segmentPhr = daysPhr
+                    var segmentPhr = normalPhr
                             .Where(i => i.LastUpdate <= statEndTime && i.LastUpdate >= statStartTime)
                             .ToList();