diff --git a/component/train.go b/component/train.go
index 23660f2..71912a2 100644
--- a/component/train.go
+++ b/component/train.go
@@ -28,8 +28,17 @@ func (t *TrainPositionInfo) ToString() string {
 
 // TrainBtm 列车应答器传输模块
 type TrainBtm struct {
+	//车载应答器天线功率放大器开关，true-开，false-关
+	PowerAmplifierSwitch bool
+	//应答器计数（每过一个应答器加一，在同一个应答器内不变）
+	BaliseCounter int
+	//报文计数器（每解出一个应答器报文加一）
+	MessageCounter int
+	//BTM此时是否在应答器上方
+	AboveBalise bool
 }
 
 var (
 	TrainPositionInfoType = ecs.NewComponentType[TrainPositionInfo]()
+	TrainBtmType          = ecs.NewComponentType[TrainBtm]()
 )
diff --git a/sys/device_sys/balise_detection.go b/sys/device_sys/balise_detection.go
index 16d19c6..c8a29fc 100644
--- a/sys/device_sys/balise_detection.go
+++ b/sys/device_sys/balise_detection.go
@@ -15,7 +15,7 @@ type BaliseDetectSystem struct {
 
 func NewBaliseDetectSystem() *BaliseDetectSystem {
 	return &BaliseDetectSystem{
-		trainQuery: ecs.NewQuery(filter.Contains(component.UidType, component.TrainPositionInfoType)),
+		trainQuery: ecs.NewQuery(filter.Contains(component.UidType, component.TrainPositionInfoType, component.TrainBtmType)),
 	}
 }
 func (s *BaliseDetectSystem) Update(w ecs.World) {