diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index b391ce4..2a4ac3c 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -107,8 +107,8 @@ message Platform {
 message Station {
   CommonInfo common = 1;
   string code = 2;
-  bool hasControl = 3; // 是否有控制
-  bool concentrationStations=4;  //是否集中站
+  bool hasControl = 3;            // 是否有控制
+  bool concentrationStations = 4; //是否集中站
 }
 
 message StationLine {
@@ -145,6 +145,9 @@ message Turnout {
   repeated Point pointA = 6; // A端坐标列表
   repeated Point pointB = 7; // B端坐标列表
   repeated Point pointC = 8; // C端坐标列表
+  RelatedRef paRef = 9;      // 道岔A端关联的设备
+  RelatedRef pbRef = 10;     // 道岔B端关联的设备
+  RelatedRef pcRef = 11;     // 道岔C端关联的设备
 }
 
 message Signal {
@@ -167,6 +170,8 @@ message Section {
   CommonInfo common = 1;
   string code = 2;
   repeated Point points = 3;
+  RelatedRef paRef = 4; // 区段A端关联的设备
+  RelatedRef pbRef = 5; // 区段B端关联的设备
 }
 
 message PathLine {
@@ -174,3 +179,22 @@ message PathLine {
   string code = 2;
   repeated Point points = 3;
 }
+
+//关联设备
+message RelatedRef {
+  enum DeviceType {
+    Section = 0;
+    Turnout = 1;
+    TrainWindow = 2;
+  }
+
+  enum DevicePort {
+    A = 0;
+    B = 1;
+    C = 2;
+  }
+
+  DeviceType deviceType = 1; //关联的设备类型
+  string id = 2;             //关联的设备ID
+  DevicePort devicePort = 3; //关联的设备端口
+}