diff --git a/lib/main.dart b/lib/main.dart
index a6c8f11..77999ea 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -30,6 +30,7 @@ import 'package:terepi_seged/services/stakeout_sync_service.dart';
 import 'package:terepi_seged/services/tilt_service.dart';
 import 'package:terepi_seged/services/track_sync_service.dart';
 import 'package:terepi_seged/services/ts_sync_service.dart';
+import 'package:terepi_seged/services/vechicle_identity_service.dart';
 import 'package:terepi_seged/services/version_gate_service.dart';
 
 Future<void> main() async {
@@ -101,6 +102,7 @@ Future<void> main() async {
   Get.put(TiltService());
   Get.put(PermissionService());
   Get.put(ContactService());
+  Get.put(VehicleIdentityService());
 
   runApp(const MyApp());
 }
diff --git a/lib/models/sensor_chanel.dart b/lib/models/sensor_chanel.dart
new file mode 100644
index 0000000..a3694c4
--- /dev/null
+++ b/lib/models/sensor_chanel.dart
@@ -0,0 +1,91 @@
+import 'package:uuid/uuid.dart';
+
+/// Érzékelő-csatorna: a MŰSZER geometriája — melyik csatornaszám melyik
+/// vonal/állomás fizikai pontjához tartozik.
+///
+/// SZÁNDÉKOSAN önálló modell (nem a StakeoutPoint kiterjesztése): az
+/// adat forrása lehet SPS-import (a műszer geometria-exportja), de
+/// származhat máshonnan is (kézi rögzítés, jövőbeli más formátum).
+/// A kitűzési (GNSS-szel mért) pontokkal a (lineId, station) párossal
+/// vetjük össze FUTÁSIDŐBEN (lásd StakeoutService), nem tárolunk
+/// másolatot a mért pozícióból — így sosem megy szét a két adat.
+class SensorChannel {
+  final int? id;
+  final String uuid;
+  final int projectId;
+
+  final int channel;
+  final String lineId;
+  final int station;
+
+  /// Terv-pozíció az SPS R-fájlból (ha volt hozzá tartozó vevőpont-sor).
+  /// Null, ha csak a csatorna-hozzárendelés ismert (pl. csak X-fájl volt),
+  /// ilyenkor a GNSS-mért kitűzési pont adja az egyetlen pozíciót.
+  final double? planEovY;
+  final double? planEovX;
+  final double? planLat;
+  final double? planLon;
+
+  final String source; // 'sps' | 'manual'
+  final String? importBatch; // egy import-menet azonosítója (törléshez)
+
+  final DateTime createdAt;
+  final DateTime updatedAt;
+
+  SensorChannel({
+    this.id,
+    String? uuid,
+    required this.projectId,
+    required this.channel,
+    required this.lineId,
+    required this.station,
+    this.planEovY,
+    this.planEovX,
+    this.planLat,
+    this.planLon,
+    this.source = 'sps',
+    this.importBatch,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+  })  : uuid = uuid ?? const Uuid().v4(),
+        createdAt = createdAt ?? DateTime.now(),
+        updatedAt = updatedAt ?? DateTime.now();
+
+  bool get hasPlanPosition => planEovY != null && planEovX != null;
+
+  Map<String, dynamic> toMap() => {
+        if (id != null) 'id': id,
+        'uuid': uuid,
+        'project_id': projectId,
+        'channel': channel,
+        'line_id': lineId,
+        'station': station,
+        'plan_eov_y': planEovY,
+        'plan_eov_x': planEovX,
+        'plan_lat': planLat,
+        'plan_lon': planLon,
+        'source': source,
+        'import_batch': importBatch,
+        'created_at': createdAt.toIso8601String(),
+        'updated_at': updatedAt.toIso8601String(),
+      };
+
+  factory SensorChannel.fromMap(Map<String, dynamic> m) => SensorChannel(
+        id: m['id'] as int?,
+        uuid: m['uuid'] as String,
+        projectId: m['project_id'] as int,
+        channel: m['channel'] as int,
+        lineId: (m['line_id'] as String?) ?? '',
+        station: m['station'] as int,
+        planEovY: (m['plan_eov_y'] as num?)?.toDouble(),
+        planEovX: (m['plan_eov_x'] as num?)?.toDouble(),
+        planLat: (m['plan_lat'] as num?)?.toDouble(),
+        planLon: (m['plan_lon'] as num?)?.toDouble(),
+        source: (m['source'] as String?) ?? 'sps',
+        importBatch: m['import_batch'] as String?,
+        createdAt: DateTime.tryParse((m['created_at'] as String?) ?? '') ??
+            DateTime.now(),
+        updatedAt: DateTime.tryParse((m['updated_at'] as String?) ?? '') ??
+            DateTime.now(),
+      );
+}
diff --git a/lib/models/source_point.dart b/lib/models/source_point.dart
new file mode 100644
index 0000000..a4099c2
--- /dev/null
+++ b/lib/models/source_point.dart
@@ -0,0 +1,74 @@
+import 'package:uuid/uuid.dart';
+
+/// Forráspont (vibrátor-állomás) — az SPS S-fájlból importált TERV-pozíció.
+///
+/// Tisztán referencia-réteg: nincs "kijelölve/meglőve" mutálható állapota
+/// (a döntés szerint a tényleges ellenőrzés a periodikus pozíciónapló és
+/// a terv UTÓLAGOS összevetéséből adódik — lásd VibratorNavController).
+class SourcePoint {
+  final int? id;
+  final String uuid;
+  final int projectId;
+
+  final String lineId;
+  final int station; // VP (vibration point) szám
+
+  final double planEovY;
+  final double planEovX;
+  final double planLat;
+  final double planLon;
+
+  final String source; // 'sps'
+  final String? importBatch;
+
+  final DateTime createdAt;
+
+  SourcePoint({
+    this.id,
+    String? uuid,
+    required this.projectId,
+    required this.lineId,
+    required this.station,
+    required this.planEovY,
+    required this.planEovX,
+    required this.planLat,
+    required this.planLon,
+    this.source = 'sps',
+    this.importBatch,
+    DateTime? createdAt,
+  })  : uuid = uuid ?? const Uuid().v4(),
+        createdAt = createdAt ?? DateTime.now();
+
+  String get displayId => '$lineId · $station';
+
+  Map<String, dynamic> toMap() => {
+        if (id != null) 'id': id,
+        'uuid': uuid,
+        'project_id': projectId,
+        'line_id': lineId,
+        'station': station,
+        'plan_eov_y': planEovY,
+        'plan_eov_x': planEovX,
+        'plan_lat': planLat,
+        'plan_lon': planLon,
+        'source': source,
+        'import_batch': importBatch,
+        'created_at': createdAt.toIso8601String(),
+      };
+
+  factory SourcePoint.fromMap(Map<String, dynamic> m) => SourcePoint(
+        id: m['id'] as int?,
+        uuid: m['uuid'] as String,
+        projectId: m['project_id'] as int,
+        lineId: (m['line_id'] as String?) ?? '',
+        station: m['station'] as int,
+        planEovY: (m['plan_eov_y'] as num).toDouble(),
+        planEovX: (m['plan_eov_x'] as num).toDouble(),
+        planLat: (m['plan_lat'] as num).toDouble(),
+        planLon: (m['plan_lon'] as num).toDouble(),
+        source: (m['source'] as String?) ?? 'sps',
+        importBatch: m['import_batch'] as String?,
+        createdAt: DateTime.tryParse((m['created_at'] as String?) ?? '') ??
+            DateTime.now(),
+      );
+}
diff --git a/lib/models/vechicle_position_log.dart b/lib/models/vechicle_position_log.dart
new file mode 100644
index 0000000..a96436a
--- /dev/null
+++ b/lib/models/vechicle_position_log.dart
@@ -0,0 +1,87 @@
+import 'package:uuid/uuid.dart';
+
+/// Periodikus járműpozíció-minta — a navigációs oldal a beállított
+/// időközönként ide ment egy sort, amíg a rögzítés fut. Ebből (és a
+/// SourcePoint terv-pozíciókból) számítható utólag, mely forráspontok
+/// mellett járt ténylegesen a jármű.
+class VehiclePositionLog {
+  final int? id;
+  final String uuid;
+  final int projectId;
+
+  final String vehicleId; // pl. "V1" / "V2" / "V3"
+
+  final double eovY;
+  final double eovX;
+  final double lat;
+  final double lon;
+  final double? altitude;
+  final double? speedKmh;
+  final double? heading;
+  final int? fixQuality;
+  final double? accuracy;
+
+  final DateTime timestamp;
+  final String? deviceId;
+  final String? appInstanceId;
+
+  VehiclePositionLog({
+    this.id,
+    String? uuid,
+    required this.projectId,
+    required this.vehicleId,
+    required this.eovY,
+    required this.eovX,
+    required this.lat,
+    required this.lon,
+    this.altitude,
+    this.speedKmh,
+    this.heading,
+    this.fixQuality,
+    this.accuracy,
+    DateTime? timestamp,
+    this.deviceId,
+    this.appInstanceId,
+  })  : uuid = uuid ?? const Uuid().v4(),
+        timestamp = timestamp ?? DateTime.now();
+
+  Map<String, dynamic> toMap() => {
+        if (id != null) 'id': id,
+        'uuid': uuid,
+        'project_id': projectId,
+        'vehicle_id': vehicleId,
+        'eov_y': eovY,
+        'eov_x': eovX,
+        'lat': lat,
+        'lon': lon,
+        'altitude': altitude,
+        'speed_kmh': speedKmh,
+        'heading': heading,
+        'fix_quality': fixQuality,
+        'accuracy': accuracy,
+        'timestamp': timestamp.toIso8601String(),
+        'device_id': deviceId,
+        'app_instance_id': appInstanceId,
+      };
+
+  factory VehiclePositionLog.fromMap(Map<String, dynamic> m) =>
+      VehiclePositionLog(
+        id: m['id'] as int?,
+        uuid: m['uuid'] as String,
+        projectId: m['project_id'] as int,
+        vehicleId: (m['vehicle_id'] as String?) ?? '',
+        eovY: (m['eov_y'] as num).toDouble(),
+        eovX: (m['eov_x'] as num).toDouble(),
+        lat: (m['lat'] as num).toDouble(),
+        lon: (m['lon'] as num).toDouble(),
+        altitude: (m['altitude'] as num?)?.toDouble(),
+        speedKmh: (m['speed_kmh'] as num?)?.toDouble(),
+        heading: (m['heading'] as num?)?.toDouble(),
+        fixQuality: m['fix_quality'] as int?,
+        accuracy: (m['accuracy'] as num?)?.toDouble(),
+        timestamp: DateTime.tryParse((m['timestamp'] as String?) ?? '') ??
+            DateTime.now(),
+        deviceId: m['device_id'] as String?,
+        appInstanceId: m['app_instance_id'] as String?,
+      );
+}
diff --git a/lib/pages/vibro_nav/presentation/controllers/vibro_nav_controller.dart b/lib/pages/vibro_nav/presentation/controllers/vibro_nav_controller.dart
new file mode 100644
index 0000000..d4e1b60
--- /dev/null
+++ b/lib/pages/vibro_nav/presentation/controllers/vibro_nav_controller.dart
@@ -0,0 +1,216 @@
+import 'dart:async';
+import 'dart:math' as math;
+
+import 'package:get/get.dart';
+import 'package:terepi_seged/models/source_point.dart';
+import 'package:terepi_seged/models/vechicle_position_log.dart';
+import 'package:terepi_seged/services/app_database.dart';
+import 'package:terepi_seged/services/coord_converter_service.dart';
+import 'package:terepi_seged/services/device_identity_service.dart';
+import 'package:terepi_seged/services/gnss/gnss_service.dart';
+import 'package:terepi_seged/services/project_service.dart';
+import 'package:terepi_seged/services/vechicle_identity_service.dart';
+
+/// Egyszerű navigációs panel a jelgerjesztő (vibrátor) járműhöz.
+///
+/// A pozíció a KITŰZÉSSEL AZONOS forrásból jön (GnssService — külső
+/// BT/BLE GNSS-egység a járműben), semmilyen új eszköz-integráció nem
+/// kell hozzá. A forráspontok tisztán referencia-réteg (nincs mutálható
+/// "meglőve" állapotuk); az ellenőrzés a periodikus pozíciónapló és a
+/// terv UTÓLAGOS összevetéséből adódik (lásd isVerified).
+class VibroNavController extends GetxController {
+  AppDatabase get _db => AppDatabase.instance;
+
+  // ── Forráspontok ─────────────────────────────────────────────────
+  final sourcePoints = <SourcePoint>[].obs;
+
+  /// Egyezés-tűrés (m) a naplózott pozíció és a terv-forráspont között.
+  final tolerance = 15.0.obs;
+
+  // ── Élő pozíció (a GnssService-ből, EOV-ra konvertálva) ───────────
+  final hasPosition = false.obs;
+  final curEovY = 0.0.obs;
+  final curEovX = 0.0.obs;
+  final speedKmh = 0.0.obs;
+  final sessionDistanceM = 0.0.obs;
+
+  /// Haladási irány (fok) — pozíció-előzményből számolva, ALACSONY
+  /// SEBESSÉGNÉL BEFAGYASZTVA (a nyers GPS-heading álló/lassú helyzetben
+  /// zajos/értelmetlen — ugyanez a minta, mint a Kitűzésnél).
+  final travelHeading = Rxn<double>();
+  static const _headingFreezeSpeedKmh = 5.0;
+
+  double? _histY, _histX;
+  DateTime? _histTime;
+
+  // ── Legközelebbi forráspont ───────────────────────────────────────
+  final nearestPoint = Rxn<SourcePoint>();
+  final nearestDistance = 0.0.obs;
+
+  // ── Periodikus napló ───────────────────────────────────────────────
+  final isLogging = false.obs;
+  final logIntervalSec = 60.obs; // felhasználó által állítható
+  Timer? _logTimer;
+
+  @override
+  void onInit() {
+    super.onInit();
+    load();
+    if (Get.isRegistered<GnssService>()) {
+      ever(GnssService.to.lastGgaLine, (_) => _onPosition());
+    }
+  }
+
+  @override
+  void onClose() {
+    _logTimer?.cancel();
+    super.onClose();
+  }
+
+  Future<void> load() async {
+    final projectId = ProjectService.to.activeProjectId;
+    if (projectId == null) {
+      sourcePoints.clear();
+      return;
+    }
+    sourcePoints.value = await _db.listSourcePoints(projectId);
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // Pozíció-feldolgozás
+  // ═════════════════════════════════════════════════════════════════
+
+  void _onPosition() {
+    final gnss = GnssService.to;
+    if (gnss.gpsQuality.value <= 0 ||
+        gnss.latitude.value == 0 ||
+        !Get.isRegistered<CoordConverterService>()) {
+      return;
+    }
+
+    final p = CoordConverterService.to
+        .wgsToEovPoint(gnss.longitude.value, gnss.latitude.value);
+    final now = DateTime.now();
+
+    if (_histY != null && _histTime != null) {
+      final dy = p.x - _histY!;
+      final dx = p.y - _histX!;
+      final dist = math.sqrt(dy * dy + dx * dx);
+      final dtSec = now.difference(_histTime!).inMilliseconds / 1000.0;
+
+      if (dtSec > 0) {
+        final v = dist / dtSec; // m/s
+        speedKmh.value = v * 3.6;
+        sessionDistanceM.value += dist;
+
+        // Irány csak akkor frissül, ha a sebesség a fagyasztási küszöb
+        // felett van — álló/nagyon lassú helyzetben a nyers irány zajos.
+        if (speedKmh.value >= _headingFreezeSpeedKmh && dist > 0.3) {
+          travelHeading.value =
+              (math.atan2(dy, dx) * 180 / math.pi + 360) % 360;
+        }
+      }
+    }
+
+    _histY = p.x;
+    _histX = p.y;
+    _histTime = now;
+
+    curEovY.value = p.x;
+    curEovX.value = p.y;
+    hasPosition.value = true;
+
+    _updateNearest();
+  }
+
+  void _updateNearest() {
+    if (sourcePoints.isEmpty) {
+      nearestPoint.value = null;
+      return;
+    }
+    SourcePoint? best;
+    var bestDist = double.infinity;
+    for (final sp in sourcePoints) {
+      final dy = sp.planEovY - curEovY.value;
+      final dx = sp.planEovX - curEovX.value;
+      final d = math.sqrt(dy * dy + dx * dx);
+      if (d < bestDist) {
+        bestDist = d;
+        best = sp;
+      }
+    }
+    nearestPoint.value = best;
+    nearestDistance.value = bestDist;
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // Terv/napló összevetés — melyik forráspont "igazolt"
+  // ═════════════════════════════════════════════════════════════════
+
+  /// Egyszerű, szinkron ellenőrzés a már betöltött [logs] lista alapján
+  /// (a nézet előre lekéri, hogy ne fusson adatbázis-lekérdezés minden
+  /// egyes marker kirajzolásakor).
+  bool isVerified(SourcePoint sp, List<VehiclePositionLog> logs) {
+    for (final log in logs) {
+      final dy = sp.planEovY - log.eovY;
+      final dx = sp.planEovX - log.eovX;
+      if (math.sqrt(dy * dy + dx * dx) <= tolerance.value) return true;
+    }
+    return false;
+  }
+
+  Future<List<VehiclePositionLog>> loadLogs() async {
+    final projectId = ProjectService.to.activeProjectId;
+    if (projectId == null) return [];
+    return _db.listVehiclePositionLogs(projectId);
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // Periodikus rögzítés
+  // ═════════════════════════════════════════════════════════════════
+
+  void startLogging() {
+    if (isLogging.value) return;
+    isLogging.value = true;
+    _logTick(); // azonnali első pont
+    _logTimer = Timer.periodic(
+        Duration(seconds: logIntervalSec.value), (_) => _logTick());
+  }
+
+  void stopLogging() {
+    isLogging.value = false;
+    _logTimer?.cancel();
+    _logTimer = null;
+  }
+
+  Future<void> _logTick() async {
+    if (!hasPosition.value) return;
+    final projectId = ProjectService.to.activeProjectId;
+    final vehicleId = VehicleIdentityService.to.selectedVehicle.value;
+    if (projectId == null || vehicleId == null) return;
+
+    final gnss = GnssService.to;
+    final entry = VehiclePositionLog(
+      projectId: projectId,
+      vehicleId: vehicleId,
+      eovY: curEovY.value,
+      eovX: curEovX.value,
+      lat: gnss.latitude.value,
+      lon: gnss.longitude.value,
+      altitude: gnss.altitude.value,
+      speedKmh: speedKmh.value,
+      heading: travelHeading.value,
+      fixQuality: gnss.gpsQuality.value,
+      accuracy: gnss.horizontalAccuracy,
+      deviceId: Get.isRegistered<DeviceIdentityService>() &&
+              DeviceIdentityService.to.isReady
+          ? DeviceIdentityService.to.deviceId
+          : null,
+      appInstanceId: Get.isRegistered<DeviceIdentityService>() &&
+              DeviceIdentityService.to.isReady
+          ? DeviceIdentityService.to.appInstanceId
+          : null,
+    );
+    await _db.insertVehiclePositionLog(entry);
+  }
+}
diff --git a/lib/pages/vibro_nav/presentation/views/vibro_nav_view.dart b/lib/pages/vibro_nav/presentation/views/vibro_nav_view.dart
new file mode 100644
index 0000000..be726e7
--- /dev/null
+++ b/lib/pages/vibro_nav/presentation/views/vibro_nav_view.dart
@@ -0,0 +1,456 @@
+import 'dart:io';
+
+import 'package:file_picker/file_picker.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:get/get.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:terepi_seged/models/source_point.dart';
+import 'package:terepi_seged/models/vechicle_position_log.dart';
+import 'package:terepi_seged/services/app_database.dart';
+import 'package:terepi_seged/services/coord_converter_service.dart';
+import 'package:terepi_seged/services/gnss/gnss_service.dart';
+import 'package:terepi_seged/services/project_service.dart';
+import 'package:terepi_seged/services/sps_import_service.dart';
+import 'package:terepi_seged/services/vechicle_identity_service.dart';
+import 'package:terepi_seged/widgets/map/imported_layer_overlay.dart';
+
+import '../controllers/vibro_nav_controller.dart';
+
+/// Egyszerű navigációs oldal a vibrátor-járműhöz. ÖNÁLLÓ oldal, nem
+/// MapSurveyMode — saját MapController kell a forgó (track-up)
+/// térképhez, hogy ez semmilyen más módot ne érintsen.
+class VibroNavView extends StatefulWidget {
+  const VibroNavView({super.key});
+
+  @override
+  State<VibroNavView> createState() => _VibroNavViewState();
+}
+
+class _VibroNavViewState extends State<VibroNavView> {
+  late final VibroNavController controller;
+  final _mapController = MapController();
+  List<VehiclePositionLog> _logs = [];
+
+  @override
+  void initState() {
+    super.initState();
+    controller = Get.put(VibroNavController());
+    _refreshLogs();
+    // Forgatás + a naplók frissítése a pozíció-változásokra.
+    ever(controller.travelHeading, (_) => _applyRotation());
+    ever(controller.hasPosition, (_) => _followPosition());
+  }
+
+  @override
+  void dispose() {
+    Get.delete<VibroNavController>();
+    super.dispose();
+  }
+
+  Future<void> _refreshLogs() async {
+    _logs = await controller.loadLogs();
+    if (mounted) setState(() {});
+  }
+
+  void _applyRotation() {
+    final h = controller.travelHeading.value;
+    if (h == null) return;
+    try {
+      _mapController.rotate(-h);
+    } catch (_) {}
+  }
+
+  void _followPosition() {
+    if (!controller.hasPosition.value ||
+        !Get.isRegistered<CoordConverterService>()) {
+      return;
+    }
+    final gnss = GnssService.to;
+    try {
+      _mapController.move(LatLng(gnss.latitude.value, gnss.longitude.value),
+          _mapController.camera.zoom);
+    } catch (_) {}
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Vibrátor navigáció'),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.upload_file),
+            tooltip: 'Forráspontok importja (SPS S-fájl)',
+            onPressed: _importSourcePoints,
+          ),
+          IconButton(
+            icon: const Icon(Icons.local_shipping_outlined),
+            tooltip: 'Jármű kiválasztása',
+            onPressed: _pickVehicle,
+          ),
+        ],
+      ),
+      body: Stack(
+        children: [
+          _buildMap(),
+          Positioned(
+            left: 8,
+            right: 8,
+            top: 8,
+            child: _VehicleBadge(),
+          ),
+          Positioned(
+            left: 8,
+            right: 8,
+            bottom: 8,
+            child: _NavPanel(
+                controller: controller, onLoggingToggled: _refreshLogs),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildMap() {
+    return Obx(() {
+      final points = controller.sourcePoints;
+      final nearest = controller.nearestPoint.value;
+
+      return FlutterMap(
+        mapController: _mapController,
+        options: const MapOptions(
+          initialCenter: LatLng(47.5, 19.05),
+          initialZoom: 15,
+        ),
+        children: [
+          TileLayer(
+            urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+            userAgentPackageName: 'hu.app_dev.terepi_seged',
+          ),
+          // Tervezett útvonal + minden más importált háttérréteg — a
+          // MEGLÉVŐ rétegimport-mechanizmus, nincs hozzá új kód.
+          const ImportedLayerOverlay(),
+          MarkerLayer(markers: [
+            for (final sp in points)
+              Marker(
+                point: LatLng(sp.planLat, sp.planLon),
+                width: 40,
+                height: 40,
+                child: _SourcePointMarker(
+                  point: sp,
+                  isNearest: sp.uuid == nearest?.uuid,
+                  isVerified: controller.isVerified(sp, _logs),
+                ),
+              ),
+            if (controller.hasPosition.value)
+              Marker(
+                point: LatLng(GnssService.to.latitude.value,
+                    GnssService.to.longitude.value),
+                width: 34,
+                height: 34,
+                child: const _VehicleMarker(),
+              ),
+          ]),
+        ],
+      );
+    });
+  }
+
+  // ── Jármű-választás ────────────────────────────────────────────────
+
+  Future<void> _pickVehicle() async {
+    final chosen = await Get.dialog<String>(AlertDialog(
+      title: const Text('Melyik járműben van ez a tablet?'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          for (final v in VehicleIdentityService.availableVehicles)
+            RadioListTile<String>(
+              title: Text(v),
+              value: v,
+              groupValue: VehicleIdentityService.to.selectedVehicle.value,
+              onChanged: (val) => Get.back(result: val),
+            ),
+        ],
+      ),
+    ));
+    if (chosen != null) {
+      await VehicleIdentityService.to.setVehicle(chosen);
+    }
+  }
+
+  // ── SPS S-fájl (forráspont) import — kompakt, egyetlen dialógus ────
+
+  Future<void> _importSourcePoints() async {
+    final result = await FilePicker.platform.pickFiles(type: FileType.any);
+    final path = result?.files.single.path;
+    if (path == null) return;
+
+    final projectId = ProjectService.to.activeProjectId;
+    if (projectId == null) return;
+
+    try {
+      final content = await File(path).readAsString();
+      final points = SpsParser.parseSourceFile(content);
+      if (points.isEmpty) {
+        Get.snackbar(
+            'Import',
+            'Nem sikerült forráspontot beolvasni ebből a fájlból — '
+                'ellenőrizd, hogy valódi SPS S-fájl-e.',
+            snackPosition: SnackPosition.BOTTOM);
+        return;
+      }
+
+      final withPos = points.where((p) => p.eovY != null && p.eovX != null);
+      final ok = await Get.dialog<bool>(AlertDialog(
+        title: const Text('Forráspontok importja'),
+        content: Text('${points.length} pont az S-fájlban, '
+            '${withPos.length} érvényes koordinátával.\n\n'
+            'Első néhány: ${points.take(3).map((p) => '${p.lineId}·${p.station}').join(', ')}…'),
+        actions: [
+          TextButton(
+              onPressed: () => Get.back(result: false),
+              child: const Text('Mégse')),
+          FilledButton(
+              onPressed: () => Get.back(result: true),
+              child: const Text('Import')),
+        ],
+      ));
+      if (ok != true) return;
+
+      final conv = CoordConverterService.to;
+      final batch = DateTime.now().toIso8601String();
+      final saved = <SourcePoint>[];
+      for (final p in withPos) {
+        final w = conv.eovToWgsPoint(p.eovY!, p.eovX!);
+        saved.add(SourcePoint(
+          projectId: projectId,
+          lineId: p.lineId,
+          station: p.station,
+          planEovY: p.eovY!,
+          planEovX: p.eovX!,
+          planLat: w.y,
+          planLon: w.x,
+          importBatch: batch,
+        ));
+      }
+      final inserted = await AppDatabase.instance.insertSourcePoints(saved);
+      await controller.load();
+      Get.snackbar('Import kész', '$inserted forráspont importálva',
+          snackPosition: SnackPosition.BOTTOM);
+    } catch (e) {
+      Get.snackbar('Import hiba', e.toString(),
+          snackPosition: SnackPosition.BOTTOM);
+    }
+  }
+}
+
+// ═══════════════════════════════════════════════════════════════════
+// HUD panel: sebesség, táv, legközelebbi pont, rögzítés vezérlés
+// ═══════════════════════════════════════════════════════════════════
+
+class _NavPanel extends StatelessWidget {
+  final VibroNavController controller;
+  final VoidCallback onLoggingToggled;
+  const _NavPanel({required this.controller, required this.onLoggingToggled});
+
+  @override
+  Widget build(BuildContext context) {
+    return Obx(() {
+      final nearest = controller.nearestPoint.value;
+      return Card(
+        elevation: 6,
+        child: Padding(
+          padding: const EdgeInsets.all(12),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Row(
+                mainAxisAlignment: MainAxisAlignment.spaceAround,
+                children: [
+                  _Stat(
+                      label: 'Sebesség',
+                      value:
+                          '${controller.speedKmh.value.toStringAsFixed(0)} km/h'),
+                  _Stat(
+                      label: 'Megtett táv',
+                      value: _fmtDist(controller.sessionDistanceM.value)),
+                  if (nearest != null)
+                    _Stat(
+                        label: 'Legközelebbi VP',
+                        value: nearest.displayId,
+                        highlight: true),
+                  if (nearest != null)
+                    _Stat(
+                        label: 'Táv odáig',
+                        value: _fmtDist(controller.nearestDistance.value)),
+                ],
+              ),
+              const SizedBox(height: 8),
+              Row(
+                children: [
+                  Expanded(
+                    child: controller.isLogging.value
+                        ? OutlinedButton.icon(
+                            icon: const Icon(Icons.stop_circle_outlined),
+                            label: Text('Rögzítés leállítása '
+                                '(${controller.logIntervalSec.value} mp)'),
+                            onPressed: () {
+                              controller.stopLogging();
+                              onLoggingToggled();
+                            },
+                          )
+                        : FilledButton.icon(
+                            icon: const Icon(Icons.fiber_manual_record,
+                                color: Colors.red),
+                            label: Text('Rögzítés indítása '
+                                '(${controller.logIntervalSec.value} mp-enként)'),
+                            onPressed: () {
+                              controller.startLogging();
+                              onLoggingToggled();
+                            },
+                          ),
+                  ),
+                  const SizedBox(width: 8),
+                  IconButton(
+                    icon: const Icon(Icons.timer_outlined),
+                    tooltip: 'Rögzítési időköz',
+                    onPressed: controller.isLogging.value
+                        ? null
+                        : () => _pickInterval(controller),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      );
+    });
+  }
+
+  Future<void> _pickInterval(VibroNavController c) async {
+    final opts = [15, 30, 60, 120, 300];
+    final chosen = await Get.dialog<int>(AlertDialog(
+      title: const Text('Rögzítési időköz'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          for (final s in opts)
+            RadioListTile<int>(
+              title: Text(s < 60 ? '$s másodperc' : '${s ~/ 60} perc'),
+              value: s,
+              groupValue: c.logIntervalSec.value,
+              onChanged: (v) => Get.back(result: v),
+            ),
+        ],
+      ),
+    ));
+    if (chosen != null) c.logIntervalSec.value = chosen;
+  }
+
+  static String _fmtDist(double m) => m < 1000
+      ? '${m.toStringAsFixed(0)} m'
+      : '${(m / 1000).toStringAsFixed(2)} km';
+}
+
+class _Stat extends StatelessWidget {
+  final String label;
+  final String value;
+  final bool highlight;
+  const _Stat(
+      {required this.label, required this.value, this.highlight = false});
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Text(value,
+            style: TextStyle(
+                fontSize: highlight ? 16 : 18,
+                fontWeight: FontWeight.w700,
+                color:
+                    highlight ? Theme.of(context).colorScheme.primary : null)),
+        Text(label,
+            style: TextStyle(fontSize: 10, color: Colors.grey.shade600)),
+      ],
+    );
+  }
+}
+
+// ═══════════════════════════════════════════════════════════════════
+
+class _VehicleBadge extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Obx(() {
+      final v = VehicleIdentityService.to.selectedVehicle.value;
+      return Align(
+        alignment: Alignment.topLeft,
+        child: Container(
+          padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
+          decoration: BoxDecoration(
+            color: v == null
+                ? Colors.orange.withOpacity(0.9)
+                : Colors.black.withOpacity(0.7),
+            borderRadius: BorderRadius.circular(8),
+          ),
+          child: Text(
+            v == null ? 'Nincs jármű kiválasztva!' : 'Jármű: $v',
+            style: const TextStyle(color: Colors.white, fontSize: 12),
+          ),
+        ),
+      );
+    });
+  }
+}
+
+class _SourcePointMarker extends StatelessWidget {
+  final SourcePoint point;
+  final bool isNearest;
+  final bool isVerified;
+  const _SourcePointMarker(
+      {required this.point, required this.isNearest, required this.isVerified});
+
+  @override
+  Widget build(BuildContext context) {
+    final color = isVerified ? Colors.green : Colors.grey.shade600;
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Icon(
+          isVerified ? Icons.check_circle : Icons.radio_button_unchecked,
+          color: isNearest ? Colors.red : color,
+          size: isNearest ? 26 : 18,
+        ),
+        Text(point.displayId,
+            style: TextStyle(
+                fontSize: 9,
+                fontWeight: isNearest ? FontWeight.w700 : FontWeight.w400,
+                color: isNearest ? Colors.red : Colors.black87)),
+      ],
+    );
+  }
+}
+
+class _VehicleMarker extends StatelessWidget {
+  const _VehicleMarker();
+
+  @override
+  Widget build(BuildContext context) {
+    // Track-up módban a szimbólum mindig "felfelé" mutat — a világ
+    // forog körülötte, nem a szimbólum a világ körül.
+    return Container(
+      decoration: BoxDecoration(
+        color: Colors.blue,
+        shape: BoxShape.circle,
+        border: Border.all(color: Colors.white, width: 3),
+        boxShadow: [
+          BoxShadow(color: Colors.blue.withOpacity(0.5), blurRadius: 8)
+        ],
+      ),
+      child: const Icon(Icons.navigation, color: Colors.white, size: 18),
+    );
+  }
+}
diff --git a/lib/routes/app_pages.dart b/lib/routes/app_pages.dart
index 15abf82..f8fc772 100644
--- a/lib/routes/app_pages.dart
+++ b/lib/routes/app_pages.dart
@@ -27,6 +27,7 @@ import 'package:terepi_seged/pages/start/bindings/start_page_bindings.dart';
 import 'package:terepi_seged/pages/start/presentation/views/start_page.dart';
 import 'package:terepi_seged/pages/tracking/bindings/tracking_bindings.dart';
 import 'package:terepi_seged/pages/tracking/presentation/views/tracking_view.dart';
+import 'package:terepi_seged/pages/vibro_nav/presentation/views/vibro_nav_view.dart';
 
 import '../pages/map_test/bindings/map_test_bindings.dart';
 import '../pages/map_test/presentation/views/map_test_view.dart';
@@ -106,6 +107,7 @@ class AppPages {
     GetPage(name: Routes.SETTINGS, page: () => const SettingsView()),
     GetPage(
         name: Routes.STAKEOUT_IMPORT, page: () => const StakeoutImportView()),
-    GetPage(name: Routes.CONTACTS, page: () => const ContactsView())
+    GetPage(name: Routes.CONTACTS, page: () => const ContactsView()),
+    GetPage(name: Routes.VIBRONAV, page: () => const VibroNavView())
   ];
 }
diff --git a/lib/routes/app_routes.dart b/lib/routes/app_routes.dart
index e7509fd..5bd52be 100644
--- a/lib/routes/app_routes.dart
+++ b/lib/routes/app_routes.dart
@@ -26,4 +26,5 @@ abstract class Routes {
 
   static const SETTINGS = '/settings';
   static const STAKEOUT_IMPORT = '/stakeout_import';
+  static const VIBRONAV = '/vibro_nav';
 }
diff --git a/lib/services/app_database.dart b/lib/services/app_database.dart
index 2e03ac3..e5582a5 100644
--- a/lib/services/app_database.dart
+++ b/lib/services/app_database.dart
@@ -11,8 +11,10 @@ import 'package:terepi_seged/models/measured_point.dart';
 import 'package:terepi_seged/models/note_item.dart';
 import 'package:terepi_seged/models/note_item_audio.dart';
 import 'package:terepi_seged/models/note_item_photo.dart';
+import 'package:terepi_seged/models/source_point.dart';
 import 'package:terepi_seged/models/stakeout_point.dart';
 import 'package:terepi_seged/models/track.dart';
+import 'package:terepi_seged/models/vechicle_position_log.dart';
 import 'package:terepi_seged/services/device_identity_service.dart';
 import 'package:uuid/uuid.dart';
 import '../models/project.dart';
@@ -44,7 +46,7 @@ class AppDatabase {
     final path = p.join(dbDir.path, 'terepi_seged.db');
 
     return openDatabase(path,
-        version: 5,
+        version: 6,
         onConfigure: (db) => db.execute('PRAGMA foreign_keys = ON'),
         onCreate: _onCreate,
         onUpgrade: _onUpgrade);
@@ -271,6 +273,8 @@ class AppDatabase {
     await _createContactsOutbox(db);
     await _addAppInstanceIdColumns(db);
 
+    await _createVibratorNavTables(db);
+
     // Alap projekt létrehozása az első indításhoz
     final now = DateTime.now().toIso8601String();
     await db.insert('projects', {
@@ -303,10 +307,11 @@ class AppDatabase {
       await _migrateToV4(db);
     }
     if (oldVersion < 5) {
-      _createContactsOutbox(db);
+      await _createContactsOutbox(db);
     }
 
     await _addAppInstanceIdColumns(db);
+    await _createVibratorNavTables(db);
   }
 
   Future<void> _migrateToV4(Database db) async {
@@ -1392,4 +1397,84 @@ class AppDatabase {
   //   await db.execute('CREATE INDEX IF NOT EXISTS idx_contacts_outbox_project '
   //       'ON contacts_outbox(project_id)');
   // }
+
+  // ── Vibrátor navigáció: forráspontok + járműpozíció-napló ────────
+
+  Future<void> _createVibratorNavTables(Database db) async {
+    await db.execute('''
+      CREATE TABLE IF NOT EXISTS source_points (
+        id            INTEGER PRIMARY KEY AUTOINCREMENT,
+        uuid          TEXT    NOT NULL UNIQUE,
+        project_id    INTEGER NOT NULL,
+        line_id       TEXT    NOT NULL DEFAULT '',
+        station       INTEGER NOT NULL,
+        plan_eov_y    REAL    NOT NULL,
+        plan_eov_x    REAL    NOT NULL,
+        plan_lat      REAL    NOT NULL,
+        plan_lon      REAL    NOT NULL,
+        source        TEXT    NOT NULL DEFAULT 'sps',
+        import_batch  TEXT,
+        created_at    TEXT    NOT NULL
+      )
+    ''');
+    await db.execute('CREATE INDEX IF NOT EXISTS idx_source_points_project '
+        'ON source_points(project_id, line_id, station)');
+
+    await db.execute('''
+      CREATE TABLE IF NOT EXISTS vehicle_position_logs (
+        id              INTEGER PRIMARY KEY AUTOINCREMENT,
+        uuid            TEXT    NOT NULL UNIQUE,
+        project_id      INTEGER NOT NULL,
+        vehicle_id      TEXT    NOT NULL,
+        eov_y           REAL    NOT NULL,
+        eov_x           REAL    NOT NULL,
+        lat             REAL    NOT NULL,
+        lon             REAL    NOT NULL,
+        altitude        REAL,
+        speed_kmh       REAL,
+        heading         REAL,
+        fix_quality     INTEGER,
+        accuracy        REAL,
+        timestamp       TEXT    NOT NULL,
+        device_id       TEXT,
+        app_instance_id TEXT
+      )
+    ''');
+    await db.execute('CREATE INDEX IF NOT EXISTS idx_vehicle_logs_project '
+        'ON vehicle_position_logs(project_id, vehicle_id, timestamp)');
+  }
+
+  Future<int> insertSourcePoints(List<SourcePoint> points) async {
+    final db = await database;
+    var count = 0;
+    await db.transaction((txn) async {
+      for (final p in points) {
+        await txn.insert('source_points', p.toMap());
+        count++;
+      }
+    });
+    return count;
+  }
+
+  Future<List<SourcePoint>> listSourcePoints(int projectId) async {
+    final db = await database;
+    final rows = await db.query('source_points',
+        where: 'project_id = ?',
+        whereArgs: [projectId],
+        orderBy: 'station ASC');
+    return rows.map(SourcePoint.fromMap).toList();
+  }
+
+  Future<void> insertVehiclePositionLog(VehiclePositionLog log) async {
+    final db = await database;
+    await db.insert('vehicle_position_logs', log.toMap());
+  }
+
+  Future<List<VehiclePositionLog>> listVehiclePositionLogs(
+      int projectId) async {
+    final db = await database;
+    final rows = await db.query('vehicle_position_logs',
+        where: 'project_id = ?', whereArgs: [projectId]);
+    return rows.map(VehiclePositionLog.fromMap).toList();
+  }
 }
diff --git a/lib/services/sps_import_service.dart b/lib/services/sps_import_service.dart
new file mode 100644
index 0000000..10b2d1f
--- /dev/null
+++ b/lib/services/sps_import_service.dart
@@ -0,0 +1,320 @@
+import 'package:terepi_seged/models/sensor_chanel.dart';
+import 'package:terepi_seged/services/coord_converter_service.dart';
+
+/// SPS (Shell Processing Support) fájlok beolvasása — a SEG 1993-as
+/// "SPS Format for Land 3D Surveys" specifikációja szerint, fix
+/// oszlop-pozíciókkal (1-alapú, záró oszlop is beleértve).
+///
+/// Csak azt olvassuk ki, ami a csatorna-geometria ellenőrzéséhez kell:
+///  * R-fájl (Receiver "Point Record"): vonal, pontszám, EOV Y/X, magasság
+///  * X-fájl (Relation Record): csatorna-tartomány → vonal + állomás-tartomány
+///
+/// A fix oszlopszélességű, évtizedes szabvány gyártónként kicsit eltérő
+/// exportokat is szülhet — ezért import előtt MINDIG előnézet van
+/// (lásd SpsImportPreview), soha nem mentünk vakon.
+class SpsParser {
+  SpsParser._();
+
+  // ── Nyers sor-kivágás (1-alapú, záró oszlop is benne) ─────────────
+  static String _col(String line, int from, int to) {
+    if (line.length < from) return '';
+    final end = line.length < to ? line.length : to;
+    return line.substring(from - 1, end).trim();
+  }
+
+  static bool _isDataLine(String line, String expectedFirstChar) {
+    if (line.isEmpty) return false;
+    if (line.startsWith('EOF')) return false;
+    if (line[0] == 'H') return false; // fejléc/komment sor
+    return line[0].toUpperCase() == expectedFirstChar;
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // R-fájl (vevőpont) — "Point Record", cols 1-80
+  // ═════════════════════════════════════════════════════════════════
+  //  1     Rekord-azonosító        1-1    "R"
+  //  2     Vonalnév                2-17
+  //  3     Pontszám                18-25
+  //  4     Pont-index              26-26
+  //  11    EOV Y (easting)         47-55
+  //  12    EOV X (northing)        56-65
+  //  13    Magasság                66-71
+
+  static List<SpsPointRecord> parseReceiverFile(String content) =>
+      _parsePointFile(content, 'R');
+
+  /// Forráspontok (vibrátor-állomások) — az S-fájl UGYANAZT az
+  /// oszlop-elrendezést használja, mint az R-fájl, csak a rekord-jelölő
+  /// betű más.
+  static List<SpsPointRecord> parseSourceFile(String content) =>
+      _parsePointFile(content, 'S');
+
+  static List<SpsPointRecord> _parsePointFile(
+      String content, String recordType) {
+    final result = <SpsPointRecord>[];
+    for (final raw in content.split(RegExp(r'\r\n|\r|\n'))) {
+      if (!_isDataLine(raw, recordType)) continue;
+      final lineId = _col(raw, 2, 17);
+      final pointStr = _col(raw, 18, 25);
+      final indexStr = _col(raw, 26, 26);
+      final eastingStr = _col(raw, 47, 55);
+      final northingStr = _col(raw, 56, 65);
+      final elevStr = _col(raw, 66, 71);
+
+      // A pontszám ritkán tartalmazhat törtrészt — az egész részt vesszük
+      // állomásszámként.
+      final pointNum =
+          int.tryParse(pointStr.split('.').first.replaceAll(RegExp(r'\D'), ''));
+      if (pointNum == null) continue;
+
+      result.add(SpsPointRecord(
+        lineId: lineId,
+        station: pointNum,
+        pointIndex: int.tryParse(indexStr) ?? 1,
+        eovY: double.tryParse(eastingStr),
+        eovX: double.tryParse(northingStr),
+        elevation: double.tryParse(elevStr),
+        rawLine: raw,
+      ));
+    }
+    return result;
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // X-fájl (kapcsolat) — "Relation Record", cols 1-80
+  // ═════════════════════════════════════════════════════════════════
+  //  9     From channel            39-42
+  //  10    To channel              43-46
+  //  11    Channel increment       47-47
+  //  12    Vevő-vonalnév           48-63
+  //  13    From receiver           64-71
+  //  14    To receiver             72-79
+  //  15    Receiver index          80-80
+
+  static List<SpsRelationRecord> parseRelationFile(String content) {
+    final result = <SpsRelationRecord>[];
+    for (final raw in content.split(RegExp(r'\r\n|\r|\n'))) {
+      if (!_isDataLine(raw, 'X')) continue;
+
+      final fromCh = int.tryParse(_col(raw, 39, 42));
+      final toCh = int.tryParse(_col(raw, 43, 46));
+      final chInc = int.tryParse(_col(raw, 47, 47)) ?? 1;
+      final recvLine = _col(raw, 48, 63);
+      final fromRecv = int.tryParse(_col(raw, 64, 71));
+      final toRecv = int.tryParse(_col(raw, 72, 79));
+
+      if (fromCh == null ||
+          toCh == null ||
+          fromRecv == null ||
+          toRecv == null) {
+        continue;
+      }
+
+      result.add(SpsRelationRecord(
+        fromChannel: fromCh,
+        toChannel: toCh,
+        channelIncrement: chInc <= 0 ? 1 : chInc,
+        recvLineId: recvLine,
+        fromReceiver: fromRecv,
+        toReceiver: toRecv,
+        rawLine: raw,
+      ));
+    }
+    return result;
+  }
+
+  /// Egy X-rekord (csatorna-TARTOMÁNY) egyedi (csatorna, vonal, állomás)
+  /// hármasokra bontása. A normál (egykomponensű) esetben a csatorna- és
+  /// vevőszám párhuzamosan fut végig a tartományon. Többkomponensű
+  /// (channel increment > 1) esetet — ritka, pl. 3C geofonoknál — nem
+  /// bontunk szét channelenként külön állomásra, mert az UGYANAHHOZ az
+  /// egy fizikai ponthoz tartozna; ilyenkor a tartomány KEZDŐ csatornáját
+  /// társítjuk a ponthoz, a többit átugorjuk.
+  static List<({int channel, String lineId, int station})> expandRelation(
+      SpsRelationRecord r) {
+    final out = <({int channel, String lineId, int station})>[];
+    if (r.channelIncrement != 1) {
+      out.add((
+        channel: r.fromChannel,
+        lineId: r.recvLineId,
+        station: r.fromReceiver
+      ));
+      return out;
+    }
+    final chCount = r.toChannel - r.fromChannel;
+    final recvCount = r.toReceiver - r.fromReceiver;
+    if (chCount < 0) return out;
+    for (var i = 0; i <= chCount; i++) {
+      final station = chCount == 0
+          ? r.fromReceiver
+          : r.fromReceiver + (recvCount * i / chCount).round();
+      out.add(
+          (channel: r.fromChannel + i, lineId: r.recvLineId, station: station));
+    }
+    return out;
+  }
+
+  // ═════════════════════════════════════════════════════════════════
+  // Előnézet összeállítása — R + X összefésülve
+  // ═════════════════════════════════════════════════════════════════
+
+  /// [receiverPoints] és/vagy [relations] közül legalább az egyik legyen
+  /// nem üres. Ha csak relations van, a csatorna-hozzárendelés megvan,
+  /// de terv-koordináta nélkül (a GNSS-mért kitűzési pont adja majd a
+  /// pozíciót). Ha csak receiverPoints van, nincs csatornaszám — ekkor
+  /// channel = null marad minden sorban (a UI jelzi, hogy ez hiányos).
+  static SpsImportPreview buildPreview({
+    List<SpsPointRecord> receiverPoints = const [],
+    List<SpsRelationRecord> relations = const [],
+  }) {
+    final byLineStation = <String, SpsPointRecord>{};
+    for (final p in receiverPoints) {
+      byLineStation['${p.lineId}|${p.station}'] = p;
+    }
+
+    final rows = <SpsPreviewRow>[];
+    var unmatchedChannels = 0;
+
+    if (relations.isNotEmpty) {
+      for (final rel in relations) {
+        for (final e in expandRelation(rel)) {
+          final match = byLineStation['${e.lineId}|${e.station}'];
+          if (match == null) unmatchedChannels++;
+          rows.add(SpsPreviewRow(
+            channel: e.channel,
+            lineId: e.lineId,
+            station: e.station,
+            eovY: match?.eovY,
+            eovX: match?.eovX,
+          ));
+        }
+      }
+    } else {
+      // Csak R-fájl: nincs csatornaszám, csak a vevőpontok listája.
+      for (final p in receiverPoints) {
+        rows.add(SpsPreviewRow(
+          channel: null,
+          lineId: p.lineId,
+          station: p.station,
+          eovY: p.eovY,
+          eovX: p.eovX,
+        ));
+      }
+    }
+
+    rows.sort(
+        (a, b) => (a.channel ?? a.station).compareTo(b.channel ?? b.station));
+
+    return SpsImportPreview(
+      rows: rows,
+      totalReceiverPoints: receiverPoints.length,
+      totalRelations: relations.length,
+      unmatchedChannelCount: unmatchedChannels,
+    );
+  }
+
+  /// A jóváhagyott előnézetből SensorChannel lista építése (mentés előtt).
+  static List<SensorChannel> buildSensorChannels({
+    required SpsImportPreview preview,
+    required int projectId,
+    required String importBatch,
+  }) {
+    final conv = CoordConverterService.to;
+    final out = <SensorChannel>[];
+    for (final r in preview.rows) {
+      if (r.channel == null) continue; // csatornaszám nélkül nincs mit menteni
+      double? lat, lon;
+      if (r.eovY != null && r.eovX != null) {
+        final w = conv.eovToWgsPoint(r.eovY!, r.eovX!);
+        lon = w.x;
+        lat = w.y;
+      }
+      out.add(SensorChannel(
+        projectId: projectId,
+        channel: r.channel!,
+        lineId: r.lineId,
+        station: r.station,
+        planEovY: r.eovY,
+        planEovX: r.eovX,
+        planLat: lat,
+        planLon: lon,
+        source: 'sps',
+        importBatch: importBatch,
+      ));
+    }
+    return out;
+  }
+}
+
+// ═════════════════════════════════════════════════════════════════════
+// Adatszerkezetek
+// ═════════════════════════════════════════════════════════════════════
+
+class SpsPointRecord {
+  final String lineId;
+  final int station;
+  final int pointIndex;
+  final double? eovY;
+  final double? eovX;
+  final double? elevation;
+  final String rawLine;
+  SpsPointRecord({
+    required this.lineId,
+    required this.station,
+    required this.pointIndex,
+    this.eovY,
+    this.eovX,
+    this.elevation,
+    required this.rawLine,
+  });
+}
+
+class SpsRelationRecord {
+  final int fromChannel;
+  final int toChannel;
+  final int channelIncrement;
+  final String recvLineId;
+  final int fromReceiver;
+  final int toReceiver;
+  final String rawLine;
+  SpsRelationRecord({
+    required this.fromChannel,
+    required this.toChannel,
+    required this.channelIncrement,
+    required this.recvLineId,
+    required this.fromReceiver,
+    required this.toReceiver,
+    required this.rawLine,
+  });
+}
+
+/// Egy előnézeti sor — ez jelenik meg a felhasználónak import előtt.
+class SpsPreviewRow {
+  final int? channel;
+  final String lineId;
+  final int station;
+  final double? eovY;
+  final double? eovX;
+  SpsPreviewRow({
+    required this.channel,
+    required this.lineId,
+    required this.station,
+    this.eovY,
+    this.eovX,
+  });
+
+  bool get hasPosition => eovY != null && eovX != null;
+}
+
+class SpsImportPreview {
+  final List<SpsPreviewRow> rows;
+  final int totalReceiverPoints;
+  final int totalRelations;
+  final int unmatchedChannelCount;
+  SpsImportPreview({
+    required this.rows,
+    required this.totalReceiverPoints,
+    required this.totalRelations,
+    required this.unmatchedChannelCount,
+  });
+}
diff --git a/lib/services/vechicle_identity_service.dart b/lib/services/vechicle_identity_service.dart
new file mode 100644
index 0000000..adc50ee
--- /dev/null
+++ b/lib/services/vechicle_identity_service.dart
@@ -0,0 +1,29 @@
+import 'package:get/get.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// Melyik járműben van EZ a tablet — eszköz-szintű, tartós beállítás
+/// (nem projektfüggő). Több tabletnél/eszközcserénél is egyszerűen
+/// újra beállítható, ha a tablet másik járműbe kerül.
+class VehicleIdentityService extends GetxService {
+  static VehicleIdentityService get to => Get.find();
+
+  static const _key = 'vehicle_id';
+
+  /// Az alapértelmezett választható lista — igény szerint bővíthető.
+  static const availableVehicles = ['V1', 'V2', 'V3'];
+
+  final selectedVehicle = Rxn<String>();
+
+  @override
+  Future<void> onInit() async {
+    super.onInit();
+    final prefs = await SharedPreferences.getInstance();
+    selectedVehicle.value = prefs.getString(_key);
+  }
+
+  Future<void> setVehicle(String vehicleId) async {
+    selectedVehicle.value = vehicleId;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(_key, vehicleId);
+  }
+}
diff --git a/lib/widgets/app_drawer.dart b/lib/widgets/app_drawer.dart
index 6878cc0..3d1fcda 100644
--- a/lib/widgets/app_drawer.dart
+++ b/lib/widgets/app_drawer.dart
@@ -145,6 +145,14 @@ class AppDrawer extends StatelessWidget {
                     // Get.to(() => const NtripSettingsView());
                   },
                 ),
+                ListTile(
+                  leading: const Icon(Icons.local_shipping_outlined),
+                  title: const Text('Jármű navigáció'),
+                  onTap: () {
+                    Get.back();
+                    Get.toNamed(Routes.VIBRONAV);
+                  },
+                ),
 
                 // ── 3. Beállítások ─────────────────────────────────
                 const _SectionLabel('Beállítások'),