diff --git a/sys/device_sys/balise.go b/sys/device_sys/balise.go
index b5d389b..5560463 100644
--- a/sys/device_sys/balise.go
+++ b/sys/device_sys/balise.go
@@ -16,22 +16,23 @@ func NewBaliseSystem() *BaliseSystem {
 }
 func (s *BaliseSystem) Update(w ecs.World) {
 	s.baliseQuery.Each(w, func(entry *ecs.Entry) {
-		baliseState := component.BaliseStateType.Get(entry)
-		baliseState.ValidTelegram = s.findValidTelegram(w, entry)
+		s.updateValidTelegram(w, entry)
 	})
 }
 
-// 获取应答器有效报文
-func (s *BaliseSystem) findValidTelegram(w ecs.World, entry *ecs.Entry) []byte {
+// 更新应答器有效报文
+func (s *BaliseSystem) updateValidTelegram(w ecs.World, entry *ecs.Entry) {
 	wd := entity.GetWorldData(w)
 	id := component.UidType.Get(entry).Id
+	baliseState := component.BaliseStateType.Get(entry)
 	if entry.HasComponent(component.BaliseFB) { //固定应答器
-		baliseModel := wd.Repo.FindTransponder(id)
-		telegram := baliseModel.FixedTelegram()
-		if telegram != nil {
-			return telegram
-		} else { //测试用
-			return []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
+		if len(baliseState.ValidTelegram) == 0 {
+			baliseModel := wd.Repo.FindTransponder(id)
+			telegram := baliseModel.FixedTelegram()
+			if len(telegram) == 0 { //测试用
+				telegram = []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
+			}
+			baliseState.ValidTelegram = telegram
 		}
 	} else if entry.HasComponent(component.BaliseDB) { //休眠唤醒应答器
 
@@ -42,5 +43,4 @@ func (s *BaliseSystem) findValidTelegram(w ecs.World, entry *ecs.Entry) []byte {
 	} else if entry.HasComponent(component.BaliseWB) { //轮径校正应答器
 
 	}
-	return nil
 }