diff --git a/aucma-api/src/main/java/com/aucma/api/service/IPdaBindingService.java b/aucma-api/src/main/java/com/aucma/api/service/IPdaBindingService.java
index 2f758ae..7452044 100644
--- a/aucma-api/src/main/java/com/aucma/api/service/IPdaBindingService.java
+++ b/aucma-api/src/main/java/com/aucma/api/service/IPdaBindingService.java
@@ -40,4 +40,18 @@ public interface IPdaBindingService {
      */
     public String  unbindBarCode(String barCode);
 
+    /**
+     * PDA降级消息通知
+     * @param userName
+     * @return
+     */
+    String messageNotifications(String userName);
+
+    /**
+     * PDA切换订单
+     * @param barCode
+     * @param stationCode
+     * @return
+     */
+    String switchOrders(String barCode, String stationCode);
 }