diff --git a/ats/verify/simulation/wayside/memory/wayside_memory_map.go b/ats/verify/simulation/wayside/memory/wayside_memory_map.go
index 2dbc756..7fbc930 100644
--- a/ats/verify/simulation/wayside/memory/wayside_memory_map.go
+++ b/ats/verify/simulation/wayside/memory/wayside_memory_map.go
@@ -291,7 +291,7 @@ func ecsLinkMapToSection(repo *repository.Repository, offset int64, up bool, lin
 	var section *repository.PhysicalSection
 	for _, s := range link.PhysicalSections() {
 		ao, bo := s.ALinkPosition().Offset(), s.BLinkPosition().Offset()
-		if (ao <= offset && offset < bo) || (bo <= offset && offset < ao) {
+		if (ao < offset && offset <= bo) || (bo < offset && offset <= ao) {
 			section = s
 			break
 		}
diff --git a/ats/verify/simulation/wayside/memory/wayside_simulation.go b/ats/verify/simulation/wayside/memory/wayside_simulation.go
index c15b065..6a69764 100644
--- a/ats/verify/simulation/wayside/memory/wayside_simulation.go
+++ b/ats/verify/simulation/wayside/memory/wayside_simulation.go
@@ -2,8 +2,6 @@ package memory
 
 import (
 	"fmt"
-	"joylink.club/rtsssimulation/component"
-	"joylink.club/rtsssimulation/entity"
 	"log/slog"
 	"math"
 	"sort"
@@ -12,6 +10,9 @@ import (
 	"sync"
 	"time"
 
+	"joylink.club/rtsssimulation/component"
+	"joylink.club/rtsssimulation/entity"
+
 	rtss_simulation "joylink.club/rtsssimulation"
 
 	"joylink.club/bj-rtsts-server/ats/verify/protos/graphicData"
@@ -588,6 +589,7 @@ func convertRelayModel(modelType graphicData.Relay_ModelType) proto.Relay_Model
 }
 
 func fillProtoRepository(repo *proto.Repository, storage *graphicData.RtssGraphicStorage, mapId int32) {
+	repo.MainCoordinateSystem = storage.UniqueIdPrefix.MainCoordinateSystem
 	axleCountingMap := make(map[string]*graphicData.AxleCounting)
 	uidsMap := queryUidStructure[*stationUidStructure](mapId)
 	for _, data := range storage.AxleCountings {