diff --git a/protos/device_info.proto b/protos/device_info.proto
index c0bc7d0..837bc01 100644
--- a/protos/device_info.proto
+++ b/protos/device_info.proto
@@ -23,6 +23,8 @@ message Section {
 
   // 公里标信息
   DeviceKilometer kilometer = 6;
+  //是否转辙轨
+  bool turning = 7;
 }
 
 // 道岔