diff --git a/SLn.Wcs.ElevatorSdk/IElevatorSdk.cs b/SLn.Wcs.ElevatorSdk/IElevatorSdk.cs
index 8488e69..ab81bb2 100644
--- a/SLn.Wcs.ElevatorSdk/IElevatorSdk.cs
+++ b/SLn.Wcs.ElevatorSdk/IElevatorSdk.cs
@@ -7,7 +7,7 @@ using Sln.Wcs.ElevatorSdk.Dto;
 
 namespace Sln.Wcs.ElevatorSdk
 {
-    internal interface IElevatorSdk
+    public interface IElevatorSdk
     {
         /// <summary>
         /// 获取所有提升机的实时状态