diff --git a/src/main/java/com/qyft/gd/service/CMDService.java b/src/main/java/com/qyft/gd/service/CMDService.java
index d35c2fc..7369116 100644
--- a/src/main/java/com/qyft/gd/service/CMDService.java
+++ b/src/main/java/com/qyft/gd/service/CMDService.java
@@ -230,7 +230,9 @@ public class CMDService {
 // 开始摇匀
     public List<Supplier<Boolean>> startShakeUp(Map<String, Object> params) {
         List<Supplier<Boolean>> cmdList = new ArrayList<>();
-        cmdList.add(() -> deviceService.setShakingSpeed((Integer) params.get("speed")));
+        if(params.get("speed") != null) {
+            cmdList.add(() -> deviceService.setShakingSpeed((Integer) params.get("speed")));
+        }
         cmdList.add(() -> deviceService.startShaking());
         return cmdList;
     }