diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 952db69..d2cd9f4 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -59,6 +59,7 @@ message RtssGraphicStorage {
   LianSuoData lianSuoData = 49; // 联锁映射数据
   repeated HoldButton holdButtons = 50; // 扣车按钮
   repeated UnattengedButton unattengedButtons = 51; //无人折返按钮
+  repeated KilometerMarkCalibration kilometerMarkCalibrations = 52; //公里标校准数据
 }
 
 message Canvas {
@@ -762,5 +763,11 @@ message HoldButton {
   CommonInfo common = 1;
   string code = 2;
   bool flip = 3;                   // 是否翻转（前端显示）
-  uint32 refStand = 4; // 关联站台
+  uint32 refStand = 4; // 关A联站台
+}
+
+// 公里标设计和实际数据
+message KilometerMarkCalibration {
+  KilometerSystem actualKm = 1;
+  KilometerSystem designKm =2;
 }