diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index 5a0265d..4baad82 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -600,6 +600,7 @@ message CarWashing {
   string code = 2;
   uint32 linkSection = 3; //关联区段
   repeated uint32 centralizedStations = 4; // 集中站Id列表;
+  uint32 duanNum = 5; //段数
 }
 /** 信标 */
 message Beacon {