diff --git a/YD_YiLu/Services/Impl/DeviceSyncService.cs b/YD_YiLu/Services/Impl/DeviceSyncService.cs
index ea4f9f7..04b76a8 100644
--- a/YD_YiLu/Services/Impl/DeviceSyncService.cs
+++ b/YD_YiLu/Services/Impl/DeviceSyncService.cs
@@ -198,8 +198,12 @@ namespace YD_YiLu.Api.Services.Impl
                 var item = normalized.Item;
 
                 // 👉 3. 唯一校验（跳过已存在）
-                //if (!seenSerials.Add(normalized.TrainSerial))
-                //    continue;
+                if (!seenSerials.Add(normalized.TrainSerial))
+                    continue;
+
+                var score = CalculateScore(item);
+                if (!score.HasValue || score.Value <= 0)
+                    continue;
 
                 var entity = new YL_Train
                 {
@@ -226,7 +230,7 @@ namespace YD_YiLu.Api.Services.Impl
                     EndTime = Util.ParseDateTime(item.EndTime),
 
                     // 👉 成绩计算（建议统一规则）
-                    Score = CalculateScore(item),
+                    Score = score,
 
                     IsValid = 1, // 默认有效
                     UploadTime = DateTime.Now,