diff --git a/protos/device_status.proto b/protos/device_status.proto
index 5fc1950..11abfac 100644
--- a/protos/device_status.proto
+++ b/protos/device_status.proto
@@ -16,6 +16,8 @@ enum DeviceType {
   WATERPROOF_DOOR = 11;
   WORK_AREA = 12;
   GAMA = 13;
+  //道岔物理区段，用于车辆在道岔时转换为对应的道岔物理区段
+  SWITCH_TRACK = 14;
 }
 
 message Rtu {