diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index c5a0d61..154cfa8 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -133,6 +133,7 @@ message Platform {
   //repeated RelatedRef platformRef = 8; //站台关联的车站和物理区段
   string refStationId = 9; //关联的车站的id
   string refSectionId = 10; //关联的物理区段id
+  string refEsbRelayCode = 11;//关联的紧急停车继电器的编号
 }
 
 message ScreenDoor {