diff --git a/ebike-common/src/main/java/com/cdzy/common/enums/EbikeContents.java b/ebike-common/src/main/java/com/cdzy/common/enums/EbikeContents.java
index 42bf644..b3e22e9 100644
--- a/ebike-common/src/main/java/com/cdzy/common/enums/EbikeContents.java
+++ b/ebike-common/src/main/java/com/cdzy/common/enums/EbikeContents.java
@@ -10,4 +10,5 @@ public interface EbikeContents {
 
     String LOGIC_DELETE  = "is_deleted";
 
+    String ECU_SN = "bike:ecusn:regionid";
 }