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 b3e22e9..dddfe81 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
@@ -10,5 +10,8 @@ public interface EbikeContents {
 
     String LOGIC_DELETE  = "is_deleted";
 
+    /**
+     * 中控ecu区域id
+     */
     String ECU_SN = "bike:ecusn:regionid";
 }