diff --git a/app/src/main/cpp/MicroPhoto.cpp b/app/src/main/cpp/MicroPhoto.cpp
index 957efd81..2a93c1f6 100644
--- a/app/src/main/cpp/MicroPhoto.cpp
+++ b/app/src/main/cpp/MicroPhoto.cpp
@@ -7,6 +7,7 @@
 #include "PhoneDevice.h"
 #include "PhoneDevice2.h"
 #include <sys/system_properties.h>
+#include <AndroidHelper.h>
 
 #include <android/multinetwork.h>
 
@@ -375,7 +376,12 @@ Java_com_xypower_mpapp_MicroPhotoService_sendHeartbeat(
 extern "C" JNIEXPORT void JNICALL
 Java_com_xypower_mpapp_MicroPhotoService_updatePosition(
         JNIEnv* env,
-        jobject pThis, jlong handler, jdouble lon, jdouble lat, jlong ts) {
+        jobject pThis, jlong handler, jdouble lon, jdouble lat, jdouble radius, jlong ts) {
+
+    if (handler == 0)
+    {
+        return;
+    }
 
     CTerminal* pTerminal = reinterpret_cast<CTerminal *>(handler);
     IDevice* dev = pTerminal->GetDevice();
@@ -385,7 +391,7 @@ Java_com_xypower_mpapp_MicroPhotoService_updatePosition(
     }
 
     CPhoneDevice* phoneDevice = (CPhoneDevice *)dev;
-    phoneDevice->UpdatePosition(lon, lat, ts);
+    phoneDevice->UpdatePosition(lon, lat, radius, ts);
 }
 
 extern "C" JNIEXPORT jboolean JNICALL
diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index c7f98e0d..04a089fe 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -1285,11 +1285,11 @@ std::string CPhoneDevice::GetFileName() const
     return mPath;
 }
 
-void CPhoneDevice::UpdatePosition(double lon, double lat, time_t ts)
+void CPhoneDevice::UpdatePosition(double lon, double lat, double radius, time_t ts)
 {
     if (m_listener != NULL)
     {
-        return m_listener->OnPositionDataArrived(lon, lat, ts);
+        return m_listener->OnPositionDataArrived(lon, lat, radius, ts);
     }
 }
 
diff --git a/app/src/main/cpp/PhoneDevice.h b/app/src/main/cpp/PhoneDevice.h
index 0cb4848c..633215ff 100644
--- a/app/src/main/cpp/PhoneDevice.h
+++ b/app/src/main/cpp/PhoneDevice.h
@@ -197,7 +197,7 @@ public:
 
     bool GetNextScheduleItem(uint32_t tsBasedZero, uint32_t scheduleTime, vector<uint32_t>& items);
 
-	void UpdatePosition(double lon, double lat, time_t ts);
+	void UpdatePosition(double lon, double lat, double radius, time_t ts);
 	bool OnVideoReady(bool result, const char* path, unsigned int photoId);
 	void UpdateSignalLevel(int signalLevel);
 
diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index 6c79b25b..53808517 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -1,6 +1,5 @@
 package com.xypower.mpapp;
 
-import static java.lang.System.err;
 import static java.lang.System.loadLibrary;
 
 import android.app.AlarmManager;
@@ -229,6 +228,8 @@ public class MicroPhotoService extends Service {
         // Environment.getExternalStoragePublicDirectory(String)
 
         // registerHeartbeatTimer(getHeartbeatDuration());
+
+        requestPosition();
     }
     @Override
     public void onDestroy() {
@@ -705,6 +706,15 @@ public class MicroPhotoService extends Service {
                     Date date = new Date();
                     long startTime = (date.getTime() + 999) / 1000;
                     service.updateCaptureSchedule(startTime);
+
+                    try {
+                        Location location = mLocationManager.getLastKnownLocation(mLocateType);
+                        if (location != null) {
+                            service.updatePosition(service.mNativeHandle, location.getLongitude(), location.getLatitude(), location.getAccuracy(), location.getTime() / 1000);
+                        }
+                    } catch (Exception ex) {
+                        ex.printStackTrace();
+                    }
                 }
             }
         };
@@ -890,21 +900,23 @@ public class MicroPhotoService extends Service {
             if (mLocationManager == null) {
                 mLocationManager = (LocationManager) getSystemService (Context.LOCATION_SERVICE);
 
-                if (!mLocationManager.isProviderEnabled(GPS_LOCATION_NAME)) {
+                if (!mLocationManager.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {
                     return false;
                 }
+
                 mLocateType = mLocationManager.GPS_PROVIDER;
+                // Set Listener
+                mLocationManager.requestLocationUpdates(mLocateType, 100,0, mLocationListener);
             }
 
             Location location = mLocationManager.getLastKnownLocation(mLocateType);
-            if (location != null) {
-                updatePosition(mNativeHandle, location.getLongitude(), location.getLatitude(), location.getTime());
+            if (location != null && mNativeHandle != 0) {
+                updatePosition(mNativeHandle, location.getLongitude(), location.getLatitude(), location.getAccuracy(), location.getTime() / 1000);
             }
-            // Set Listener
-            mLocationManager.requestLocationUpdates(mLocateType, 100,0, locationListener);
 
             return true;
         } catch (SecurityException ex) {
+            ex.printStackTrace();
         }
 
         return false;
@@ -944,6 +956,7 @@ public class MicroPhotoService extends Service {
         try {
             final TelephonyManager telephonyManager = (TelephonyManager) getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE);
             SignalStrength ss = telephonyManager.getSignalStrength();
+
             if (ss != null) {
                 return ss.getLevel();
             }
@@ -1095,7 +1108,7 @@ cellSignalStrengthGsm.getDbm();
     protected native boolean notifyToTakePhoto(long handler, int channel, int preset, long scheduleTime, boolean photoOrVideo);
     protected native boolean sendHeartbeat(long handler, int signalLevel);
     protected native boolean reloadConfigs(long handler);
-    protected native void updatePosition(long handler, double lon, double lat, long ts);
+    protected native void updatePosition(long handler, double lon, double lat, double radius, long ts);
     protected native boolean uninit(long handler);
     protected native void recordingFinished(long handler, boolean result, String path, long videoId);
     public static native void setOtgState(boolean enabled);
@@ -1103,19 +1116,18 @@ cellSignalStrengthGsm.getDbm();
     public static native String getSerialNumber();
 
     ////////////////////////GPS////////////////////
-    private static final String GPS_LOCATION_NAME = android.location.LocationManager.GPS_PROVIDER;
+    // private static final String GPS_LOCATION_NAME = android.location.LocationManager.GPS_PROVIDER;
     private LocationManager mLocationManager;
     private String mLocateType;
 
-    private LocationListener locationListener = new LocationListener() {
+    private LocationListener mLocationListener = new LocationListener() {
 
         @Override
         public void onLocationChanged(Location location) {
-            updatePosition(mNativeHandle, location.getLongitude(), location.getLatitude(), location.getTime());
-            // Log.i(TAG, "Time: " + location.getTime());
-            // Log.i(TAG, "经度：" + location.getLongitude());
-            // Log.i(TAG, "纬度：" + location.getLatitude());
-            // Log.i(TAG, "海拔：" + location.getAltitude());
+            if (mNativeHandle != 0) {
+                updatePosition(mNativeHandle, location.getLongitude(), location.getLatitude(), location.getAccuracy(), location.getTime() / 1000);
+            }
+            Log.i(TAG, "Time:" + location.getTime() + " Lon=" + location.getLongitude() + "Lat=" + location.getLatitude() + "Alt=" + location.getAltitude());
         }
 
         @Override