diff --git a/protos/alertConst.proto b/protos/alertConst.proto
index 75014c6..213040c 100644
--- a/protos/alertConst.proto
+++ b/protos/alertConst.proto
@@ -36,4 +36,12 @@ enum AlertType {
   PLATFORM_DOOR_CANNOT_OPEN = 5;
   //整侧站台门无法关闭
   PLATFORM_DOOR_CANNOT_CLOSE = 6;
+  //道岔失表
+  SWITCH_LOST = 7;
+  //道岔均失表
+  SWITCH_All_LOST = 8;
+  //道岔定位失表
+  SWITCH_DW_LOST = 9;
+  //道岔反位失表
+  SWITCH_FW_LOST = 10;
 }