Senden der Geräte-IP-Adresse (in Device Repository)

Senden der zusammengesetzten Nachricht vom Message String Builder --> Teile der alten Testnachricht in WiFiCommunication entfernt

app/src/main/AndroidManifest.xml

@@ -29,9 +29,6 @@
         <activity
             android:name=".AccelerometerActivity"
             android:exported="false" />
-        <activity
-            android:name=".VideoPreviewActivity"
-            android:exported="false" />
         <activity
             android:name=".MainActivity"
             android:exported="true">

app/src/main/java/com/example/greenwatch/AccelerometerActivity.java

@@ -92,7 +92,7 @@ public class AccelerometerActivity extends AppCompatActivity implements SensorEv
             }
         });
 
-        mAccelerometerViewModel.getAccelerometerAlarmDetected().observe(this, new Observer<Boolean>() {
+        mAccelerometerViewModel.getMovementDetectedValue().observe(this, new Observer<Boolean>() {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {

app/src/main/java/com/example/greenwatch/MainActivity.java

@@ -27,7 +27,6 @@ public class MainActivity extends AppCompatActivity {
     private Button audiodetectionAndAccelerometerButton;
     private Button videodetectionAndAccelerometerButton;
     private Button connectionButton;
-    private Button prewview_kamera;
     private MainActivityViewModel mMainActivityViewModel;
 
     @Override
@@ -41,7 +40,6 @@ public class MainActivity extends AppCompatActivity {
         audiodetectionAndAccelerometerButton = (Button) findViewById(R.id.audiodetectionAndAccelerometerButton);
         videodetectionAndAccelerometerButton = (Button) findViewById(R.id.videodetectionAndAccelerometerButton);
         connectionButton = (Button) findViewById(R.id.connectionButton);
-        prewview_kamera = (Button) findViewById(R.id.preview_kamera);
 
         RecyclerView deviceListRecyclerView = findViewById(R.id.deviceListRecyclerView);
         deviceListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
@@ -86,17 +84,6 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
-        prewview_kamera.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (mMainActivityViewModel.isCameraAccessAllowed(MainActivity.this)) {
-                    openVideoPrewvoewActivity();
-                }
-                else {
-                    mMainActivityViewModel.accessRequestCamera(MainActivity.this);
-                }
-            }
-        });
         audiodetectionButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -144,10 +131,6 @@ public class MainActivity extends AppCompatActivity {
             }
         });
     }
-    public void openVideoPrewvoewActivity() {
-        Intent intent = new Intent(this, VideoPreviewActivity.class);
-        startActivity(intent);
-    }
     public void openAudiodetectionActivity(){
         Intent intent = new Intent(this, AudiodetectionActivity.class);
         startActivity(intent);

app/src/main/java/com/example/greenwatch/VideoPreviewActivity.java

@@ -1,61 +0,0 @@
-package com.example.greenwatch;
-
-import android.os.Bundle;
-import android.util.Size;
-import android.widget.Button;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.core.CameraSelector;
-import androidx.camera.core.ImageAnalysis;
-import androidx.camera.core.ImageProxy;
-import androidx.camera.core.Preview;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.camera.view.PreviewView;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.LifecycleOwner;
-
-import com.google.common.util.concurrent.ListenableFuture;
-
-import java.util.concurrent.ExecutionException;
-
-public class VideoPreviewActivity extends AppCompatActivity {
-
-    private Button backToMainActivity;
-    private PreviewView previewView;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_preview_kamera);
-
-        backToMainActivity = (Button) findViewById(R.id.videodetectorBackToMainActivity);
-        previewView = findViewById(R.id.previewView);
-
-        backToMainActivity.setOnClickListener(v -> finish());
-
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                bindImageAnalysis(cameraProviderFuture.get());
-            } catch (ExecutionException | InterruptedException e) {
-                e.printStackTrace();
-            }
-        }, ContextCompat.getMainExecutor(this));
-    }
-
-    private void bindImageAnalysis(ProcessCameraProvider cameraProvider) {
-        ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
-        builder.setTargetResolution(new Size(640, 480));
-        builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
-        ImageAnalysis imageAnalysis = builder.build();
-        imageAnalysis.setAnalyzer(
-                ContextCompat.getMainExecutor(this),
-                ImageProxy::close);
-
-        Preview preview = new Preview.Builder().build();
-        CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
-        preview.setSurfaceProvider(previewView.getSurfaceProvider());
-        cameraProvider.bindToLifecycle((LifecycleOwner) this, cameraSelector, imageAnalysis, preview);
-    }
-}

app/src/main/java/com/example/greenwatch/communication/WiFiCommunication.java

@@ -1,5 +1,7 @@
 package com.example.greenwatch.communication;
 
+import android.util.Log;
+
 import com.example.greenwatch.repositories.DeviceRepository;
 
 import java.io.IOException;
@@ -56,23 +58,6 @@ public class WiFiCommunication {
         this.isNewMessage = isNewMessage;
     }
 
-    public static String getLocalIpAddress() {
-        try {
-            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
-                NetworkInterface networkInterface = (NetworkInterface) ((Enumeration<?>) en).nextElement();
-                for (Enumeration<InetAddress> addresses = networkInterface.getInetAddresses(); addresses.hasMoreElements();) {
-                    InetAddress inetAddress = addresses.nextElement();
-                    if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
-                        return inetAddress.getHostAddress();
-                    }
-                }
-            }
-        } catch (SocketException ex) {
-            ex.printStackTrace();
-        }
-        return null;
-    }
-
     public void stopCommunication() {
         running = false;
         socket.close();
@@ -89,7 +74,7 @@ public class WiFiCommunication {
                     {
                         isNewMessage = false;
                         //todo: adapt send String
-                        String txString = getLocalIpAddress() + " sends. #" + tmpCnt++ + sendMessage;
+                        String txString = sendMessage;
                         byte[] txBuffer = txString.getBytes();
 
                         DatagramPacket txPacket = new DatagramPacket(txBuffer, txBuffer.length, address, port);

app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java

@@ -1,14 +1,21 @@
 package com.example.greenwatch.repositories;
 
 
+import android.util.Log;
+
 import androidx.lifecycle.MutableLiveData;
 
 import com.example.greenwatch.models.Device;
 import com.example.greenwatch.communication.WiFiCommunication;
 
+import java.net.Inet4Address;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.List;
 import java.util.UUID;
@@ -76,11 +83,12 @@ public class DeviceRepository {
 
     public void getNewReceivedMessage(String newMessage) {
         String[] messageString = messageStringSplitter(newMessage);
-        String timeStamp = messageString[0];
+        if(messageString[0]=="1" && messageString.length == 7){
-        String deviceID = messageString[1];
+            String timeStamp = messageString[1];
-        boolean sensorStatus = convertSensorStatus(messageString[2]);
+            String deviceID = messageString[3];
-        String sensorType = messageString[3];
+            boolean sensorStatus = convertSensorStatus(messageString[4]);
-        int sensorMassage = Integer.valueOf(messageString[4]);
+            String sensorType = messageString[5];
+            int sensorMassage = Integer.valueOf(messageString[6]);
 
             if (deviceID.equals(checkDeviceID(localDeviceUUID))) {
                 return;
@@ -93,14 +101,20 @@ public class DeviceRepository {
                 updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
             }
         }
+    }
 
     private String messageStringBuilder(String deviceID) {
         StringBuilder message = new StringBuilder();
         Device device = connectedDevicesList.get(deviceID);
         if(device != null) {
-            message.append(device.getTimeStamp())
+            message.append("1")
                     .append(delimiter)
-                    .append(device.getDeviceID())
+                    .append(device.getTimeStamp())
+                    .append(delimiter)
+                    .append("Gruppe3")
+                    .append(delimiter)
+                    //.append(device.getDeviceID())
+                    .append(getLocalIpAddress(deviceID))
                     .append(delimiter)
                     .append(device.getSensorStatus())
                     .append(delimiter)
@@ -117,6 +131,10 @@ public class DeviceRepository {
                     .append(delimiter)
                     .append("")
                     .append(delimiter)
+                    .append("")
+                    .append(delimiter)
+                    .append("")
+                    .append(delimiter)
                     .append("");
         }
         return message.toString();
@@ -319,4 +337,25 @@ public class DeviceRepository {
         }
         return false;
     }
+
+    public String getLocalIpAddress(String deviceID) {
+        String checkedDeviceID = checkDeviceID(deviceID);
+        Device device = connectedDevicesList.get(checkedDeviceID);
+        if(device != null){
+            try {
+                for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
+                    NetworkInterface networkInterface = (NetworkInterface) ((Enumeration<?>) en).nextElement();
+                    for (Enumeration<InetAddress> addresses = networkInterface.getInetAddresses(); addresses.hasMoreElements();) {
+                        InetAddress inetAddress = addresses.nextElement();
+                        if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
+                            return inetAddress.getHostAddress();
+                        }
+                    }
+                }
+            } catch (SocketException ex) {
+                ex.printStackTrace();
+            }
+        }
+        return "";
+    }
 }

app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java

@@ -6,59 +6,86 @@ import androidx.lifecycle.ViewModel;
 
 import com.example.greenwatch.models.Device;
 import com.example.greenwatch.repositories.DeviceRepository;
-import com.example.greenwatch.sensors.AccelerometerSensor;
 
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 
 public class AccelerometerViewModel extends ViewModel implements ViewModelInterface {
 
     private MutableLiveData<List<Device>> mDeviceList;
-    private MutableLiveData<Boolean> mAccelerometerAlarmDetected;
+    private MutableLiveData<Boolean> mMovementDetected = new MutableLiveData<>();
     private MutableLiveData<List<Device>> mAlarmHistoryList;
     private MutableLiveData<Boolean> mStartAlarmRecording;
-    private AccelerometerSensor mAccelerometerSensor;
     private DeviceRepository mDeviceRepository;
+    private ArrayList<Float> Gesamt_be;
+    int arraySize = 500;
+    int functionCallCount;
+    float meanValue;
+    float offsetValue;
+    float thresholdValue;
+    boolean startMeasuring;
 
     @Override
     public void init() {
-        if (mDeviceRepository == null) {
-            mDeviceRepository = DeviceRepository.getInstance();
-        }
-        if (mAccelerometerSensor == null) {
-            mAccelerometerSensor = AccelerometerSensor.getInstance();
-        }
         if (mDeviceList == null) {
+            mDeviceRepository = DeviceRepository.getInstance();
             mDeviceList = mDeviceRepository.getConnectedDeviceList();
-        }
-        if (mAlarmHistoryList == null) {
             mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
-        }
-        if (mStartAlarmRecording == null) {
             mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
         }
-        if (mAccelerometerAlarmDetected == null) {
+        initGesamtBE();
-            mAccelerometerAlarmDetected = mAccelerometerSensor.getAccelerometerAlarmDetected();
+        mMovementDetected.setValue(false);
+        functionCallCount = 0;
+        meanValue = 0f;
+        offsetValue = 0.1f;
+        thresholdValue = 0.15f;
+        startMeasuring = false;
+    }
+
+    public void initGesamtBE() {
+        Gesamt_be = new ArrayList<>(arraySize);
+        for (int i = 0; i < arraySize; i++) {
+            Gesamt_be.add(0f);
         }
     }
 
     public void addValueToGesamtBE(float newValue) {
-        mAccelerometerSensor.addValueToGesamtBE(newValue);
+        if (Gesamt_be.size() == arraySize) {
+            Gesamt_be.remove(Gesamt_be.size() -1);
+        }
+        Gesamt_be.add(0, newValue);
+        functionCallCount++;
     }
 
     public void meanValueCalculation() {
-        mAccelerometerSensor.meanValueCalculation();
+        for (float element : Gesamt_be) {
+            meanValue += Math.abs(element);
+        }
+        meanValue = meanValue/arraySize;
     }
 
     public void calibrateAccelerometerSensor() {
-        mAccelerometerSensor.calibrateAccelerometerSensor();
+        if (functionCallCount <= arraySize) {
+            offsetValue = meanValue;
+        }
+        else {
+            startMeasuring = true;
+        }
     }
 
     public void checkAlarmCondition() {
-        mAccelerometerSensor.checkAlarmCondition();
+        if (meanValue > (thresholdValue + offsetValue) && startMeasuring && !mMovementDetected.getValue()) {
+            mMovementDetected.setValue(true);
+        }
+        else if (meanValue < (thresholdValue + offsetValue) && mMovementDetected.getValue()){
+            mMovementDetected.setValue(false);
+        }
     }
 
-    public LiveData<Boolean> getAccelerometerAlarmDetected() {
+    public LiveData<Boolean> getMovementDetectedValue() {
-        return mAccelerometerAlarmDetected;
+        return mMovementDetected;
     }
 
     @Override

app/src/main/res/layout/activity_main.xml

@@ -8,12 +8,6 @@
     android:padding="10dp"
     tools:context=".MainActivity">
 
-    <Button
-        android:id="@+id/preview_kamera"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="PrewView Kamera" />
-
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/alarmHistoryListRecyclerView"
         android:layout_width="match_parent"
@@ -28,7 +22,6 @@
         android:layout_height="match_parent"
         android:layout_weight="3"
         tools:listitem="@layout/device_item">
-
     </androidx.recyclerview.widget.RecyclerView>
     
     <LinearLayout

app/src/main/res/layout/activity_preview_kamera.xml

@@ -1,31 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context="">
-
-    <Button
-        android:id="@+id/videodetectorBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-    <FrameLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:id="@+id/erklaerung">
-
-        <androidx.camera.view.PreviewView
-            android:id="@+id/previewView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"/>
-    </FrameLayout>
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"/>
-
-</androidx.constraintlayout.widget.ConstraintLayout>