diff --git a/protos/stationLayoutGraphics.proto b/protos/stationLayoutGraphics.proto
index c8f346e..e740936 100644
--- a/protos/stationLayoutGraphics.proto
+++ b/protos/stationLayoutGraphics.proto
@@ -21,7 +21,7 @@ message RtssGraphicStorage {
   repeated Separator separators = 14;
   repeated SectionLink sectionLinks = 15;
   repeated AxleCountingSection axleCountingSections = 16;
-  repeated AxleCountingSection logicSections = 17;
+  repeated LogicSection logicSections = 17;
 }
 
 message Canvas {
@@ -235,3 +235,11 @@ message AxleCountingSection { // 计轴区段
   repeated TurnoutPosRef turnoutPos=6; //关联道岔的正反位
   int32 indexNumber=7; //区段的索引编号
 }
+
+message LogicSection { // 逻辑区段
+  CommonInfo common = 1;
+  string code = 2;
+  repeated Point points = 3;
+  string axleSectionId = 4;  // 关联的计轴区段Id
+  int32 indexNumber=5; // 索引编号
+}