diff --git a/OSCCollar/GPSRoot.prefab b/OSCCollar/GPSRoot.prefab
new file mode 100644
index 0000000..bdf53b6
--- /dev/null
+++ b/OSCCollar/GPSRoot.prefab
@@ -0,0 +1,141 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!1 &7057555791493637223
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 6602746445217648502}
+  - component: {fileID: 6015776091807845359}
+  - component: {fileID: 6836049590578950704}
+  - component: {fileID: 614713768816555494}
+  - component: {fileID: 6780525520142829000}
+  m_Layer: 0
+  m_Name: GPSRoot
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &6602746445217648502
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7057555791493637223}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &6015776091807845359
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7057555791493637223}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: -1450912254, guid: 80f1b8067b0760e4bb45023bc2e9de66, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  rootTransform: {fileID: 0}
+  shapeType: 0
+  radius: 0.5
+  height: 2
+  position: {x: 0, y: 0, z: 0}
+  rotation: {x: 0, y: 0, z: 0, w: 1}
+  collisionTags:
+  - dummy
+  allowSelf: 1
+  allowOthers: 1
+  localOnly: 0
+  receiverType: 0
+  parameter: 
+  minVelocity: 0.05
+--- !u!114 &6836049590578950704
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7057555791493637223}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: -1450912254, guid: 80f1b8067b0760e4bb45023bc2e9de66, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  rootTransform: {fileID: 0}
+  shapeType: 0
+  radius: 200
+  height: 2
+  position: {x: 0, y: -100, z: 0}
+  rotation: {x: 0, y: 0, z: 0, w: 1}
+  collisionTags:
+  - GPS
+  allowSelf: 1
+  allowOthers: 0
+  localOnly: 0
+  receiverType: 2
+  parameter: GPS1
+  minVelocity: 0.05
+--- !u!114 &614713768816555494
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7057555791493637223}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: -1450912254, guid: 80f1b8067b0760e4bb45023bc2e9de66, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  rootTransform: {fileID: 0}
+  shapeType: 0
+  radius: 200
+  height: 2
+  position: {x: -86.6, y: 50, z: 0}
+  rotation: {x: 0, y: 0, z: 0, w: 1}
+  collisionTags:
+  - GPS
+  allowSelf: 1
+  allowOthers: 0
+  localOnly: 0
+  receiverType: 2
+  parameter: GPS2
+  minVelocity: 0.05
+--- !u!114 &6780525520142829000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7057555791493637223}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: -1450912254, guid: 80f1b8067b0760e4bb45023bc2e9de66, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  rootTransform: {fileID: 0}
+  shapeType: 0
+  radius: 200
+  height: 2
+  position: {x: 86.6, y: 50, z: 0}
+  rotation: {x: 0, y: 0, z: 0, w: 1}
+  collisionTags:
+  - GPS
+  allowSelf: 1
+  allowOthers: 0
+  localOnly: 0
+  receiverType: 2
+  parameter: GPS3
+  minVelocity: 0.05