diff --git a/src/main/java/club/joylink/rtss/simulation/cbtc/data/status/YJDDZHTrainStatus.java b/src/main/java/club/joylink/rtss/simulation/cbtc/data/status/YJDDZHTrainStatus.java
index 99764ed89..cdf92832e 100644
--- a/src/main/java/club/joylink/rtss/simulation/cbtc/data/status/YJDDZHTrainStatus.java
+++ b/src/main/java/club/joylink/rtss/simulation/cbtc/data/status/YJDDZHTrainStatus.java
@@ -43,7 +43,11 @@ public class YJDDZHTrainStatus extends TrainStatus {
             status.setLocationKM(this.locationKM);
             change = true;
         }
-        status.setSpeed(train.getSpeed());
+        if (!Objects.equals(this.getSpeed(), train.getSpeed())) {
+            this.setSpeed(train.getSpeed());
+            status.setSpeed(this.getSpeed());
+            change = true;
+        }
         return change;
     }
 }