diff --git a/core/format.go b/core/sensordata.go
similarity index 93%
rename from core/format.go
rename to core/sensordata.go
index 4124f64..a2cb8cc 100644
--- a/core/format.go
+++ b/core/sensordata.go
@@ -9,19 +9,6 @@ import (
 	"time"
 )
 
-/*{
-"smartphone": {
-// hier daten von hyperimu
-},
-"serial": {
-// hier Daten von M8U:
-"timestamp": 37539672354
-"position": [0, 0, 0],
-"orientation": [0, 0, 0]
-}
-}
-*/
-
 type sourceId string
 
 const (
@@ -81,7 +68,7 @@ func (s Sensordata) Consolidate2(n Sensordata) Sensordata {
 	if n.Position == null.Position {
 		n.Position = s.Position
 	}
-	if n.Orientation == null.Orientation{
+	if n.Orientation == null.Orientation {
 		n.Orientation = s.Orientation
 	}
 	return n
@@ -144,10 +131,10 @@ func convertIPhoneSensorLog(jsonData []byte) (*Sensordata, error) {
 	roll := gjson.Get(string(jsonData), "motionRoll").Float() * 180 / math.Pi
 	yaw := gjson.Get(string(jsonData), "motionYaw").Float() * 180 / math.Pi
 	sd := &Sensordata{
-		SourceId: SOURCE_TCP,
+		SourceId:  SOURCE_TCP,
 		Timestamp: int64(timestamp * float64(time.Second)),
 		//Timestamp:   time.Unix(0, prep.Timestamp * int64(time.Millisecond)),
-		Position: [3]float64{lat, lon, alt},
+		Position:    [3]float64{lat, lon, alt},
 		Orientation: [3]float64{pitch, roll, yaw},
 	}
 	//log.Println(string(pretty.Pretty(jsonData)))
@@ -155,7 +142,6 @@ func convertIPhoneSensorLog(jsonData []byte) (*Sensordata, error) {
 	return sd, nil
 }
 
-
 func convertAndroidHyperImu(jsonData []byte) (*Sensordata, error) {
 	timestamp := gjson.Get(string(jsonData), "Timestamp").Int()
 	lat := gjson.Get(string(jsonData), "GPS.0").Float()
@@ -166,10 +152,10 @@ func convertAndroidHyperImu(jsonData []byte) (*Sensordata, error) {
 	yaw := gjson.Get(string(jsonData), "orientation.2").Float()
 
 	sd := &Sensordata{
-		SourceId: SOURCE_TCP,
+		SourceId:  SOURCE_TCP,
 		Timestamp: timestamp * int64(time.Millisecond),
 		//Timestamp:   time.Unix(0, prep.Timestamp * int64(time.Millisecond)),
-		Position: [3]float64{lat, lon, alt},
+		Position:    [3]float64{lat, lon, alt},
 		Orientation: [3]float64{pitch, roll, yaw},
 	}
 	return sd, nil