siebenhaarmi76624
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MDT5_1_Ueberwachungssystem_G1
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Merge branch 'master' into prepareMaster 

# Conflicts:
#	app/src/main/java/com/example/ueberwachungssystem/Detection/DetectionReport.java
#	app/src/main/java/com/example/ueberwachungssystem/Detection/DetectorService.java
#	app/src/main/java/com/example/ueberwachungssystem/Detection/MicrophoneDetector.java
#	app/src/main/java/com/example/ueberwachungssystem/Detection/VideoDetector.java
#	app/src/main/java/com/example/ueberwachungssystem/MainActivity.java
#	app/src/main/java/com/example/ueberwachungssystem/WifiCommunication.java
#	app/src/main/res/layout/activity_main.xml
prepareMaster
Oliver Kleinecke 1 year ago
parent
6a251fbb27 5007623acc
commit
b97c494427
9 changed files with 1129 additions and 25 deletions
Split View Show Diff Stats
  1. 57
    0
      app/src/main/java/com/example/ueberwachungssystem/Detection/DetectionReport.java
  2. 167
    0
      app/src/main/java/com/example/ueberwachungssystem/Detection/DetectorService.java
  3. 365
    0
      app/src/main/java/com/example/ueberwachungssystem/Detection/MicrophoneDetector.java
  4. 332
    0
      app/src/main/java/com/example/ueberwachungssystem/Detection/VideoDetector.java
  5. 146
    10
      app/src/main/java/com/example/ueberwachungssystem/MainActivity.java
  6. 1
    1
      app/src/main/java/com/example/ueberwachungssystem/PermissionRequest.java
  7. 12
    2
      app/src/main/java/com/example/ueberwachungssystem/PopUpClass.java
  8. 47
    12
      app/src/main/java/com/example/ueberwachungssystem/WifiCommunication.java
  9. 2
    0
      app/src/main/res/menu/options_menu.xml

+ 57
- 0
app/src/main/java/com/example/ueberwachungssystem/Detection/DetectionReport.java View File

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package com.example.ueberwachungssystem.Detection;

import android.annotation.SuppressLint;
import android.util.Log;

import com.example.ueberwachungssystem.WifiCommunication;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/** Detection Report Class */
public class DetectionReport {
public String timeStamp;
public String detectionType;
public float detectedValue;
public boolean detectionState;

public DetectionReport(boolean detectionState, String detectionType, float detectedAmplitude) {
// New Date Format
@SuppressLint("SimpleDateFormat") SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
Date curDate = new Date(System.currentTimeMillis());
this.timeStamp = formatter.format(curDate);
//Old Date Format: this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
this.detectionType = detectionType;
this.detectedValue = detectedAmplitude;
this.detectionState = detectionState;

//this.detectorID = detectorID;
}


/** Get Detection Report in String format */
public String toString() {
String state = "State: " + "[" + this.detectionState + "]";
String time = "Time: " + "[" + this.timeStamp + "]";
String type = "Type: " + "[" + this.detectionType + "]";
String value = "Value: " + "[" + this.detectedValue + "]";

return String.join("\t", state, time, type, value);
}

public String toMessage() {
String state;
if(detectionState)
state = "An";
else
state = "Aus";

return String.join(",", "1", timeStamp, "Gruppe2", WifiCommunication.getLocalIpAddress(), state, detectionType, String.valueOf(detectedValue));
}

/** Debug Report */
public void log(String tag) {
Log.d(tag, this.toString());
}
}

+ 167
- 0
app/src/main/java/com/example/ueberwachungssystem/Detection/DetectorService.java View File

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package com.example.ueberwachungssystem.Detection;

import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import android.widget.ImageView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.camera.core.ExperimentalGetImage;
import androidx.lifecycle.LifecycleService;

import com.example.ueberwachungssystem.WifiCommunication;

import java.io.File;

@ExperimentalGetImage
public class DetectorService extends LifecycleService {
public ServiceBinder serviceBinder = new ServiceBinder();
private DetectorService.OnDetectionListener listener;
private boolean isServiceRunning = false;

// Used Objects:
public VideoDetector videoDetector = null;
public AudioRecorder audioRecorder = null;
public Accelerometer motionDetector = null;
public MicrophoneDetector audioDetector = null;

public WifiCommunication wifiCommunication;

String wifiData;
StringBuffer stringBufferWifi = new StringBuffer();

String typOfAlarm;


@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (isServiceRunning)
return START_NOT_STICKY;

/** Wifi Instanz **/
wifiCommunication = new WifiCommunication(1234);
wifiCommunication.sendTrue("TEst");

wifiCommunication.setOnConnectionListener(new WifiCommunication.OnConnectionListener() {
@Override
public void onConnection(String data) {
Log.d("Listener", data);
wifiData = data;
stringToStringbuffer(data);
Log.d("buffer",stringBufferWifi.toString());
passToServiceListener(stringBufferWifi);
checkState(data);
checkTyp(data);

}
});





/** Video Detection/Recorder **/
videoDetector = new VideoDetector(this);
videoDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
@Override
public void onDetection(@NonNull DetectionReport detectionReport) {
//passToServiceListener(detectionReport);
wifiCommunication.sendTrue(detectionReport.toMessage());
}
});
/** Motion Detection**/
motionDetector = new Accelerometer(this);
motionDetector.getSensor();
motionDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
@Override
public void onDetection(@NonNull DetectionReport detectionReport) {
//passToServiceListener(detectionReport);
wifiCommunication.sendTrue(detectionReport.toMessage());
}
});
/** Audio Detection **/
audioDetector = new MicrophoneDetector(this);
audioDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
@Override
public void onDetection(@NonNull DetectionReport detectionReport) {
//passToServiceListener(detectionReport);
wifiCommunication.sendTrue(detectionReport.toMessage());
}
});
/** Audio Recorder**/
audioRecorder = new AudioRecorder(this);






isServiceRunning = true;
return super.onStartCommand(intent, flags, startId);
}

@Override
public void onDestroy() {
super.onDestroy();
isServiceRunning = false;
}

/** Service methods */
public class ServiceBinder extends Binder {
public DetectorService getBoundService() {
// Return an instance of the TestService
return DetectorService.this;
}
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
super.onBind(intent);
return serviceBinder;
}


/** Pass Detection Report to Service Detection Listener and trigger it */
public void passToServiceListener(StringBuffer stringBuffer) {
if (listener != null) {
listener.onDetection(stringBuffer);
}
}


/** On Detection Listener - runs when violation is reported */
public interface OnDetectionListener {
void onDetection(@NonNull StringBuffer stringBuffer);
}
public void setOnDetectionListener(@NonNull DetectorService.OnDetectionListener listener) {
this.listener = listener;
}

public void stringToStringbuffer(String string){
if(string != null) {
stringBufferWifi.insert(0,string + "\n");
}
}

public String[] splitString(String string){
String[] splitrxString = string.split(",");
return splitrxString; //splitrxString[0] = "1",splitrxString[1] = "HH:MM:SS", splitrxString[0].equals("1")

}


public boolean checkState(String string){
Log.d("state", String.valueOf(splitString(string)[4].equals("An")));
return splitString(string)[4].equals("An");
}

public String checkTyp(String string){
if (splitString(string)[5] != null) {
typOfAlarm = splitString(string)[5];
Log.d("Type", typOfAlarm);
}
return typOfAlarm;
}
}

+ 365
- 0
app/src/main/java/com/example/ueberwachungssystem/Detection/MicrophoneDetector.java View File

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package com.example.ueberwachungssystem.Detection;

import static java.lang.Math.*;

import android.annotation.SuppressLint;
import android.content.Context;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.AsyncTask;
import android.util.Log;

import com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex;
import com.example.ueberwachungssystem.Detection.Signalverarbeitung.FFT;

public class MicrophoneDetector extends Detector {
/**
* Constructor - takes context of current activity
*
* @param context
*/

private AufnahmeTask aufnahmeTask;
public boolean armed = false;
public int schwellwertAlarm = 100;
private Context context;

public MicrophoneDetector(Context context) {
super();
this.context = context;
}

@Override
public void startDetection() {
aufnahmeTask = new AufnahmeTask();
aufnahmeTask.execute();
}

@Override
public void stopDetection() {
if (aufnahmeTask != null) {
aufnahmeTask.cancel(true);
}
}

class AufnahmeTask extends AsyncTask<Long, Verarbeitungsergebnis, Void> {
private AudioRecord recorder;
private final int sampleRateInHz = 44100;
private final int channelConfig = AudioFormat.CHANNEL_IN_MONO;
private final int audioFormat = AudioFormat.ENCODING_PCM_16BIT;

private final int startDelay = 20000;
private final int threadSleeptime = 10;
private int minPufferGroesseInBytes;
private int pufferGroesseInBytes;
private RingPuffer ringPuffer = new RingPuffer(10);
private float kalibierWert;
private com.example.ueberwachungssystem.Detection.DetectionReport detectionReport;



@SuppressLint("MissingPermission")
AufnahmeTask() {
minPufferGroesseInBytes = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
pufferGroesseInBytes = minPufferGroesseInBytes * 2;
try {
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRateInHz, channelConfig, audioFormat, pufferGroesseInBytes);
} catch (Exception e) {
e.printStackTrace();
}
Log.d("0","Puffergroeße: "+ minPufferGroesseInBytes + " " + pufferGroesseInBytes);
Log.d("0","Recorder (SR, CH): "+ recorder.getSampleRate() + " " + recorder.getChannelCount());

int anzahlBytesProAbtastwert;
String s;
switch (recorder.getAudioFormat()) {
case AudioFormat.ENCODING_PCM_8BIT:
s = "8 Bit PCM ";
anzahlBytesProAbtastwert = 1;
break;
case AudioFormat.ENCODING_PCM_16BIT:
s = "16 Bit PCM";
anzahlBytesProAbtastwert = 2;
break;
case AudioFormat.ENCODING_PCM_FLOAT:
s = "Float PCM";
anzahlBytesProAbtastwert = 4;
break;
default:
throw new IllegalArgumentException();
}

switch (recorder.getChannelConfiguration()) {
case AudioFormat.CHANNEL_IN_MONO:
s = "Mono";
break;
case AudioFormat.CHANNEL_IN_STEREO:
s = "Stereo";
anzahlBytesProAbtastwert *= 2;
break;
case AudioFormat.CHANNEL_INVALID:
s = "ungültig";
break;
default:
throw new IllegalArgumentException();
}

Log.d("0","Konfiguration: "+ s);

}

@Override
protected Void doInBackground(Long... params) {
recorder.startRecording();
short[] puffer = new short[pufferGroesseInBytes / 2];
long lastTime = System.currentTimeMillis();
float verarbeitungsrate = 0;
final int maxZaehlerZeitMessung = 10;
int zaehlerZeitMessung = 0;
int anzahlVerarbeitet = 0;
GleitenderMittelwert gleitenderMittelwert = new GleitenderMittelwert(0.3f);

//Kalibrierung
try {
Thread.sleep(startDelay); // Time to lay down the phone
} catch (InterruptedException e) {
e.printStackTrace();
}
int i = 0;
for (i = 0; i < 20; i++) {
int n = recorder.read(puffer, 0, puffer.length);
Verarbeitungsergebnis kalibrierErgebnis = verarbeiten(puffer, n);
kalibierWert += kalibrierErgebnis.maxAmp;
try {
Thread.sleep(threadSleeptime);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
kalibierWert = kalibierWert/i;

// __Part of FFT__
// Complex[] zeitSignal = new Complex[puffer.length];
// for (int j = 0; j < puffer.length; j++) {
// zeitSignal[j] = new Complex(puffer[j], 0);
// }
// Complex[] spektrum = FFT.fft(zeitSignal);
// double[] spektrum = calculateFFT(puffer);
// DataPoint AddPoint;
// LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[]{});
// for (i = 0; i < spektrum.length; i++) {
// AddPoint = new DataPoint(i, spektrum[i]);
// series.appendData(AddPoint, true, spektrum.length);
// }
// graph.addSeries(series);

for (; ; ) {
if (aufnahmeTask.isCancelled()) {
break;
} else {
int n = recorder.read(puffer, 0, puffer.length);
Verarbeitungsergebnis ergebnis = verarbeiten(puffer, n);
anzahlVerarbeitet += n;

// __Part of FFT__
// spektrum = calculateFFT(puffer);
// LineGraphSeries<DataPoint> newseries = new LineGraphSeries<DataPoint>(new DataPoint[]{});
// for (i = 0; i < spektrum.length; i++) {
// AddPoint = new DataPoint(i, spektrum[i]);
// newseries.appendData(AddPoint, true, spektrum.length);
// }

zaehlerZeitMessung++;
if (zaehlerZeitMessung == maxZaehlerZeitMessung) {
long time = System.currentTimeMillis();
long deltaTime = time - lastTime;
verarbeitungsrate = 1000.0f * anzahlVerarbeitet / deltaTime;
verarbeitungsrate = gleitenderMittelwert.mittel(verarbeitungsrate);
zaehlerZeitMessung = 0;
anzahlVerarbeitet = 0;
lastTime = time;
}


ergebnis.verarbeitungsrate = (int) verarbeitungsrate;
publishProgress(ergebnis);

try {
Thread.sleep(threadSleeptime);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
recorder.release();
return null;
}

private Verarbeitungsergebnis verarbeiten(short[] daten, int n) {
String status;
short maxAmp = -1;
if (n == AudioRecord.ERROR_INVALID_OPERATION) {
status = "ERROR_INVALID_OPERATION";
} else if (n == AudioRecord.ERROR_BAD_VALUE) {
status = "ERROR_BAD_VALUE";
} else {
status = "OK";
short max = 0;
for (int i = 0; i < n; i++) {
if (daten[i] > max) {
max = daten[i];
}
}

ringPuffer.hinzufuegen(max);
maxAmp = ringPuffer.maximum();
if (maxAmp <= schwellwertAlarm + kalibierWert) {
armed = true;
}
}

return new Verarbeitungsergebnis(status, maxAmp, 0);
}

@Override
protected void onProgressUpdate(Verarbeitungsergebnis... progress) {
super.onProgressUpdate(progress);
float maxAmpPrint = round(20*log10(abs(progress[0].maxAmp/1.0)));
float kalibierWertPrint = round(20*log10(abs(kalibierWert)));
Log.d("alarmAudio","VR: " + progress[0].verarbeitungsrate + ", Amp: " + maxAmpPrint
+ " dB, Kal: " + kalibierWertPrint + " dB");

if (progress[0].maxAmp >= schwellwertAlarm + kalibierWert && armed == true) {
armed = false;
detectionReport = new DetectionReport(true, "Audio", maxAmpPrint);
reportViolation("Audio", maxAmpPrint);
Log.d("1",detectionReport.toString());
}
}
}

private double[] calculateFFT(short[] zeitsignal)
{
byte signal[] = new byte[zeitsignal.length];
// loops through all the values of a Short
for (int i = 0; i < zeitsignal.length-1; i++) {
signal[i] = (byte) (zeitsignal[i]);
signal[i+1] = (byte) (zeitsignal[i] >> 8);
}

final int mNumberOfFFTPoints =1024;

double temp;
Complex[] y;
Complex[] complexSignal = new Complex[mNumberOfFFTPoints];
double[] absSignal = new double[mNumberOfFFTPoints/2];

for(int i = 0; i < mNumberOfFFTPoints; i++){
temp = (double)((signal[2*i] & 0xFF) | (signal[2*i+1] << 8)) / 32768.0F;
complexSignal[i] = new Complex(temp,0.0);
}

y = FFT.fft(complexSignal);

for(int i = 0; i < (mNumberOfFFTPoints/2); i++)
{
absSignal[i] = y[i].abs();
}

return absSignal;

}

class Verarbeitungsergebnis {
String status;
short maxAmp;
int verarbeitungsrate;
Verarbeitungsergebnis(String status, short maxAmp, int verarbeitungsrate) {
this.status = status;
this.maxAmp = maxAmp;
this.verarbeitungsrate = verarbeitungsrate;
}
}

class RingPuffer {
private short[] puffer;
private final int laenge;
private int anzahlEnthaltenerDaten;
private int position;

public RingPuffer(int n) {
laenge = n;
anzahlEnthaltenerDaten = 0;
position = 0;
puffer = new short[laenge];
}

public void hinzufuegen(short wert) {
puffer[position] = wert;
position++;
if (position >= laenge) {
position = 0;
}
if (anzahlEnthaltenerDaten < laenge) {
anzahlEnthaltenerDaten++;
}
}

public void hinzufuegen(short[] daten) {
for (short d : daten) {
puffer[position] = d;
position++;
if (position >= laenge) {
position = 0;
}
}
if (anzahlEnthaltenerDaten < laenge) {
anzahlEnthaltenerDaten += daten.length;
if (anzahlEnthaltenerDaten >= laenge) {
anzahlEnthaltenerDaten = laenge;
}
}
}

public short maximum() {
short max = 0;
for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
if (puffer[i] > max) {
max = puffer[i];
}
}
return max;
}

public float mittelwert() {
float summe = 0;
for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
summe += puffer[i];
}
return summe / anzahlEnthaltenerDaten;
}
}

class GleitenderMittelwert {
private final float wichtungNeuerWert;
private final float wichtungAlterWert;
private float mittelwert = 0;
private boolean istMittelwertGesetzt = false;

GleitenderMittelwert(float wichtungNeuerWert) {
this.wichtungNeuerWert = wichtungNeuerWert;
this.wichtungAlterWert = 1 - this.wichtungNeuerWert;
}

float mittel(float wert) {
if (istMittelwertGesetzt) {
mittelwert = wert * wichtungNeuerWert + mittelwert * wichtungAlterWert;
} else {
mittelwert = wert;
istMittelwertGesetzt = true;
}
return mittelwert;
}
}
}

+ 332
- 0
app/src/main/java/com/example/ueberwachungssystem/Detection/VideoDetector.java View File

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package com.example.ueberwachungssystem.Detection;

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.ImageFormat;
import android.media.Image;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.Display;
import android.view.Surface;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.camera.core.CameraSelector;
import androidx.camera.core.ExperimentalGetImage;
import androidx.camera.core.ImageAnalysis;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.Preview;
import androidx.camera.core.VideoCapture;
import androidx.camera.lifecycle.ProcessCameraProvider;
import androidx.camera.view.PreviewView;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.lifecycle.LifecycleOwner;

import com.google.common.util.concurrent.ListenableFuture;

import org.opencv.android.OpenCVLoader;
import org.opencv.core.Mat;
import org.opencv.core.Size;

import java.io.File;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.concurrent.ExecutionException;


/**
* Video Detector inherits some methods from abstract Detector class (more info there)
* */


@ExperimentalGetImage
public class VideoDetector extends Detector {
// Calling Activity
private final Context context;

// Camera Provider
private ProcessCameraProvider cameraProvider;
private ImageAnalysis imageAnalysis;
private VideoCapture videoCapture;
//private Preview preview;

// Logic
private boolean isDetecting = false;
private boolean isRecording = false;
private boolean allowReportViolation = false;

// Image Processing
private Mat previousImage = null;

// Debugging
private ImageView inputImageView = null;
private ImageView outputImageView = null;

// Recorder
private File outputDir; // Default: in app files directory


// Parameters
private static final float ALARM_THRESHOLD = 0f; // Percent of pixels changed
private static final float AREA_THRESHOLD = 10f;
private static final int DILATE_ITERATIONS = 2;
private static final float START_DELAY = 20000; // milliseconds
private static final android.util.Size IMAGE_RES = new android.util.Size(640, 480);



/** Constructor */
public VideoDetector(Context context) {
super();
this.context = context;
this.imageAnalysis = setupImageAnalysis();
this.videoCapture = setupVideoCapture();
this.outputDir = context.getFilesDir();
//this.preview = new Preview.Builder().build();
}

/** Get States */
public boolean isDetecting() {
return isDetecting;
}
public boolean isRecording(){
return isRecording;
}


/** Starts the Video Detection */
@Override
public void startDetection() {
// Check States
if (isDetecting)
return;
// Configure Image Analysis
imageAnalysis = setupImageAnalysis();
// Open CV startup check
if (!OpenCVLoader.initDebug()) {
Log.e("OpenCV", "Unable to load OpenCV!");
return;
} else
Log.d("OpenCV", "OpenCV loaded Successfully!");
// Get Process Camera Provider and start
final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
cameraProviderFuture.addListener(() -> {
try {
cameraProvider = cameraProviderFuture.get();
isDetecting = true;
bindCameraProvider();
} catch (ExecutionException | InterruptedException e) {}
}, ContextCompat.getMainExecutor(context));
// Disable Violation Calling for Setup Time
startViolationTimer(START_DELAY);
}

/** Starts the Recorder */
@SuppressLint("RestrictedApi")
public void startRecording() {
// Check States
if (isRecording){
return;
}

videoCapture = setupVideoCapture();

final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
cameraProviderFuture.addListener(() -> {
try {
cameraProvider = cameraProviderFuture.get();
isRecording = true;
bindCameraProvider();

File vidFile = new File(context.getFilesDir() + "/" + generateFileName() + ".mp4");
if (ActivityCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
return;
}
videoCapture.startRecording(
new VideoCapture.OutputFileOptions.Builder(vidFile).build(),
context.getMainExecutor(),
new VideoCapture.OnVideoSavedCallback() {
@Override
public void onVideoSaved(@NonNull VideoCapture.OutputFileResults outputFileResults) {
isRecording = false;
Toast.makeText(context, "video recording saved", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(int videoCaptureError, @NonNull String message, @Nullable Throwable cause) {
isRecording = false;
Toast.makeText(context, "video recording failed", Toast.LENGTH_SHORT).show();
}
}
);
} catch (ExecutionException | InterruptedException ignored) {}
}, ContextCompat.getMainExecutor(context));
}

/** Stops the Video Detection */
@Override
public void stopDetection() {
if (!isDetecting || imageAnalysis == null)
return;
if (!isRecording)
cameraProvider.unbindAll();
else
cameraProvider.unbind(imageAnalysis);
isDetecting = false;
allowReportViolation = false;
}

/** Stops the Recording */
@SuppressLint("RestrictedApi")
public void stopRecording(){
if(!isRecording)
return;

videoCapture.stopRecording();

if (!isDetecting())
cameraProvider.unbindAll();
else
cameraProvider.unbind(videoCapture);
isRecording = false;
}

/** Bind Camera Provider */
private void bindCameraProvider() {
// Specify which Camera to use
CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
cameraProvider.unbindAll();
cameraProvider.bindToLifecycle((LifecycleOwner) context, cameraSelector, imageAnalysis, videoCapture);
}

/** Setup Use Cases */
private ImageAnalysis setupImageAnalysis() {
// Configure and create Image Analysis
ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
builder.setTargetResolution(IMAGE_RES);
builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
builder.setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_YUV_420_888);
builder.setTargetRotation(Surface.ROTATION_90);
ImageAnalysis imageAnalysis = builder.build();
// Set Analyzer
imageAnalysis.setAnalyzer(ContextCompat.getMainExecutor(context), imageProxy -> {
if (imageProxy.getFormat() == ImageFormat.YUV_420_888) {
Image image = imageProxy.getImage();
assert image != null;

// Violation Handling
Mat processed = processImage(imageProxy);

int n = OpenCVHelper.countNonZeroPixels(processed);
int pixelCount = image.getWidth() * image.getHeight();
float percentChanged = ((float) n / pixelCount) * 100;

// Violation Condition
if (percentChanged> ALARM_THRESHOLD) {
if (allowReportViolation)
reportViolation("Video", percentChanged);
}
}
imageProxy.close();
});
return imageAnalysis;
}

@SuppressLint("RestrictedApi")
private VideoCapture setupVideoCapture() {
int rotation = getDisplayRotation();
return new VideoCapture.Builder()
.setTargetRotation(rotation)
.build();
}

/** Process Image to be used for Motion Detection */
private Mat processImage(ImageProxy imageProxy){
if (imageProxy == null)
return null;
// Image Transformation
Mat imageMat = OpenCVHelper.extractYChannel(imageProxy);
// Show Input Image
if (inputImageView != null)
OpenCVHelper.debugMat(imageMat, inputImageView);
// Preprocess Image
Mat preprocessed = imageMat;
preprocessed = OpenCVHelper.addGaussianBlur(preprocessed, new Size(21, 21));
preprocessed = OpenCVHelper.addBlur(preprocessed, new Size(3, 3));
// Set Previous Image
if (previousImage == null) {
previousImage = preprocessed;
return null;
}
// Process Image
Mat processed = preprocessed.clone();
processed = OpenCVHelper.thresholdPixels(processed, previousImage, 25);

for(int i = 0; i < DILATE_ITERATIONS; i++)
processed = OpenCVHelper.dilateBinaryMat(processed, new Size(3,3));

processed = OpenCVHelper.thresholdContourArea(processed, AREA_THRESHOLD);
// Output
previousImage = preprocessed.clone();
// Show Output Image
if (outputImageView != null)
OpenCVHelper.debugMat(processed, outputImageView);
return processed;
}


/** Debug input and result of processing */
public void debugProcessing(@NonNull ImageView inputImageView, @NonNull ImageView outputImageView){
this.inputImageView = inputImageView;
this.outputImageView = outputImageView;
}

/**
private void setPreviewView(@NonNull PreviewView previewView) {
// Create Preview
if (this.preview != null)
this.preview.setSurfaceProvider(previewView.getSurfaceProvider());
}
*/


/** Generate File Name */
private String generateFileName(){
// Get the current timestamp
LocalDateTime currentTime = LocalDateTime.now();
// Define the format for the timestamp
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
// Return the timestamp as a string
return currentTime.format(formatter);
}


/** Get current Display Rotation */
private int getDisplayRotation() {
WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
return display.getRotation();
}

/** Start delay until Violation Report is allowed */
private void startViolationTimer(float setupTime) {
new CountDownTimer((long) (setupTime), 100) {
@Override
public void onTick(long millisUntilFinished) {
}
@Override
public void onFinish() {
allowReportViolation = true;
}
}.start();
}

public void setOutputDir(File outputDir) {
this.outputDir = outputDir;
}
}

+ 146
- 10
app/src/main/java/com/example/ueberwachungssystem/MainActivity.java View File

@@ -3,17 +3,36 @@ package com.example.ueberwachungssystem;
import androidx.camera.core.ExperimentalGetImage;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentTransaction;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.camera.core.ExperimentalGetImage;
import androidx.camera.view.PreviewView;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.ImageView;
import android.widget.Toast;
import android.widget.ToggleButton;

import com.example.ueberwachungssystem.Fragments.Fragment1;
import com.example.ueberwachungssystem.Fragments.Fragment2;
import com.example.ueberwachungssystem.Detection.Accelerometer;
import com.example.ueberwachungssystem.Detection.AudioRecorder;
import com.example.ueberwachungssystem.Detection.DetectionReport;
import com.example.ueberwachungssystem.Detection.Detector;
import com.example.ueberwachungssystem.Detection.DetectorService;
import com.example.ueberwachungssystem.Detection.MicrophoneDetector;
import com.example.ueberwachungssystem.Detection.VideoDetector;

@ExperimentalGetImage
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
@@ -22,6 +41,8 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
private Fragment1 fragment1;
private Fragment2 fragment2;

private DetectorService detectorService = new DetectorService();
int num=0;
//Textviews
private TextView Auswahl;
private TextView AoderA;
@@ -53,26 +74,116 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
public void onClick(View v) {
if (v == toggleKamera) {
if (toggleKamera.isChecked()) {
vd.startDetection();
} else {
vd.stopDetection();
}
}
if (v == toggleAudio) {
if (toggleAudio.isChecked()) {
}

} else {
@Override
protected void onResume() {
super.onResume();

}
PermissionHandler permissionHandler = new PermissionHandler(this);
//permissionHandler.getPermissions();
if (permissionHandler.hasPermissions()) {

Intent serviceIntent = new Intent(this, DetectorService.class);
bindService(serviceIntent, serviceConnection, Context.BIND_AUTO_CREATE);
startService(serviceIntent);

toggleButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (toggleButton.isChecked())
{
if (detectorService != null){

detectorService.videoDetector.startDetection();

detectorService.audioDetector.startDetection();

detectorService.motionDetector.startDetection();

detectorService.audioRecorder.stopRecording();

detectorService.videoDetector.startRecording();
}
}
else {
detectorService.videoDetector.stopDetection();

detectorService.audioDetector.stopDetection();

detectorService.motionDetector.stopDetection();

detectorService.audioRecorder.stopRecording();

detectorService.videoDetector.stopRecording();
}
}
});
}else{
Toast.makeText(this,"Bitte Rechte geben", Toast.LENGTH_SHORT).show();
}
if (v == toggleBewegung) {
if (toggleBewegung.isChecked()) {

} else {
}

}
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.options_menu, menu);
return true;
}

public boolean onOptionsItemSelected(MenuItem item) {
Toast.makeText(this, "Selected Item: " + item.getTitle(), Toast.LENGTH_SHORT).show();
PopUpClass popUpClass;
switch (item.getItemId()) {
case R.id.Rechteverwaltung:
popUpClass = new PopUpClass(MainActivity.this);
popUpClass.showPopupWindow(inputImageView);
popUpClass.RechtePrüfen();
return true;
case R.id.Sensoren:
popUpClass = new PopUpClass(MainActivity.this);
popUpClass.showPopupWindow(inputImageView);
popUpClass.Sensoren();
return true;
case R.id.Impressum:
popUpClass = new PopUpClass(MainActivity.this);
popUpClass.showPopupWindow(inputImageView);
popUpClass.Impressum();
return true;
case R.id.Detection:
popUpClass = new PopUpClass(MainActivity.this);
popUpClass.showPopupWindow(inputImageView);
popUpClass.DetectionTotal(num);
return true;
default:
return super.onOptionsItemSelected(item);
}
}

private ServiceConnection serviceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
DetectorService.ServiceBinder binder = (DetectorService.ServiceBinder) service;
detectorService = binder.getBoundService();
detectorService.videoDetector.debugProcessing(null, outputImageView); //inputImageView

detectorService.setOnDetectionListener(new DetectorService.OnDetectionListener() {
@Override
public void onDetection(@NonNull StringBuffer stringBuffer) {
Log.d("onDetection", stringBuffer.toString()); //Für oli hier Textview einbauen
num++;
}
});
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
};

public void onClickZeigeFragment1(View view) {
Button button = (Button) view;
zeigeFragment(fragment1.erstellen("Hier stehen dann die Alarme"));
@@ -86,6 +197,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
public void onClickEntferneFragment(View view) {
entferneFragment();
}

private void zeigeFragment(Fragment fragment) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.frame, fragment);
@@ -100,4 +212,28 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
aktuellesFragment = null ;
}
}
@Override
public void onClick(View v) {
if (v == toggleKamera) {
if (toggleKamera.isChecked()) {

} else {

}
}
if (v == toggleAudio) {
if (toggleAudio.isChecked()) {

} else {

}
}
if (v == toggleBewegung) {
if (toggleBewegung.isChecked()) {

} else {

}
}
}
}

+ 1
- 1
app/src/main/java/com/example/ueberwachungssystem/PermissionRequest.java View File

@@ -35,7 +35,7 @@ public class PermissionRequest extends AppCompatActivity{
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(mainActivity.getApplicationContext(),"Es werden Rechte benötigt", Toast.LENGTH_LONG).show();
Toast.makeText(mainActivity.getApplicationContext(),"Es werden Rechte benötigt", Toast.LENGTH_SHORT).show();
}
});
}

+ 12
- 2
app/src/main/java/com/example/ueberwachungssystem/PopUpClass.java View File

@@ -15,6 +15,8 @@ public class PopUpClass {
PermissionRequest permission;
TextView PopUpText;

Button buttonEdit;


public PopUpClass(MainActivity mainActivity) {
this.mainActivity = mainActivity;
@@ -47,7 +49,7 @@ public class PopUpClass {

PopUpText = popupView.findViewById(R.id.titleText);

Button buttonEdit = popupView.findViewById(R.id.RechteAnfordern);
buttonEdit = popupView.findViewById(R.id.RechteAnfordern);
buttonEdit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
@@ -70,17 +72,25 @@ public class PopUpClass {
public void RechtePrüfen(){
StringBuilder Text = permission.rechtePruefen();
PopUpText.setText(Text);
buttonEdit.setVisibility(View.VISIBLE);

}
public void RechteAnfordern(){
permission.rechteAnfordern();
StringBuilder Text = permission.rechtePruefen();
PopUpText.setText(Text);

}
public void Sensoren(){
PopUpText.setText("Es können 3 verschiedene Sensoren verwendet werden \n -1. Beschleunigungssensor\n -2. Mikrofon\n -3. Kamera");
buttonEdit.setVisibility(View.GONE);
}
public void Impressum(){
PopUpText.setText("Die Ueberwachungsapp wurde im Rahmen eines Praktikums der TH-Nürnberg programmiert");
buttonEdit.setVisibility(View.GONE);
}
public void DetectionTotal(int num) {
PopUpText.setText("Total Detektions:" +num);
buttonEdit.setVisibility(View.GONE);
}

}

+ 47
- 12
app/src/main/java/com/example/ueberwachungssystem/WifiCommunication.java View File

@@ -1,8 +1,14 @@
package com.example.ueberwachungssystem;
import android.annotation.SuppressLint;
import android.util.Log;
import android.widget.Toast;

import androidx.annotation.NonNull;

import com.example.ueberwachungssystem.Detection.DetectionReport;
import com.example.ueberwachungssystem.Detection.Detector;
import com.example.ueberwachungssystem.Detection.DetectorService;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
@@ -25,6 +31,11 @@ public class WifiCommunication {
private final DatagramSocket socket;
volatile private boolean running;

private boolean Gruppe =true;
private boolean showMessage = true;

StringBuffer rxStringBuffer = new StringBuffer();

private OnConnectionListener listener;
@SuppressLint("SetTextI18n")
public WifiCommunication(int port) {
@@ -46,20 +57,20 @@ public class WifiCommunication {
}

public interface OnConnectionListener {
void onConnection(StringBuffer data);
void onConnection(String data);
}
public void setOnConnectionListener(@NonNull OnConnectionListener listener) {
this.listener = listener;
}

public void sendWifiData(StringBuffer wifiMessage) {
public void sendWifiData(String wifiMessage) {
if (listener != null) {
listener.onConnection(wifiMessage);

}
}

private class ReceiveThread extends Thread {
private StringBuffer rxStringBuffer = new StringBuffer();
private String rxString="";
private String previousRxString = "";

@@ -72,11 +83,30 @@ public class WifiCommunication {
socket.receive(rxPacket);
rxString = new String(receiveData, 0, rxPacket.getLength());
String[] splitrxString = rxString.split(",");
if(!previousRxString.equals(rxString) && splitrxString[0].equals("1") && splitrxString.length==7) {
rxStringBuffer.append(rxString).append("\n");
sendWifiData(rxStringBuffer);
//mainActivity.runOnUiThread(() -> mainActivity.tvMessages.setText(rxStringBuffer));
previousRxString = rxString;
String[] splitrxStringBuffer = splitBufferIntoStrings(rxStringBuffer);
for(String elem: splitrxStringBuffer){
if(elem.equals(rxString)){
showMessage = false;
}else{
showMessage = true;
}
}
if(Gruppe){
if(!previousRxString.equals(rxString) && splitrxString[0].equals("1") && splitrxString.length==7 && showMessage) {
rxStringBuffer.append(rxString).append("\n");
Log.d("empfangen", rxString);
sendWifiData(rxString);
//mainActivity.runOnUiThread(() -> mainActivity.tvMessages.setText(rxStringBuffer));
previousRxString = rxString;
}
}else{
if(!previousRxString.equals(rxString) && splitrxString[0].equals("1") && splitrxString.length==7 && showMessage) {
rxStringBuffer.append(rxString).append("\n");
Log.d("empfangen", rxString);
sendWifiData(rxString);
//mainActivity.runOnUiThread(() -> mainActivity.tvMessages.setText(rxStringBuffer));
previousRxString = rxString;
}
}
} while (running);
}
@@ -94,16 +124,17 @@ public class WifiCommunication {
if(send)
{
send = false;
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
/*SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
Date curDate = new Date(System.currentTimeMillis());
String str = formatter.format(curDate);
String str = formatter.format(curDate);*/
byte[] send_Data = new byte[512];
String txString = ("1," +str+ ",Gruppe2," + getLocalIpAddress() + ",An,Video," +messageToSend);
String txString = (messageToSend); //"1," +str+ ",Gruppe2," + getLocalIpAddress() + ",An,Video,"
Log.d("send", txString);
send_Data = txString.getBytes();

DatagramPacket txPacket = new DatagramPacket(send_Data, txString.length(), address, port);

for(int i = 0; i < 300; i++) {
for(int i = 0; i < 500; i++) {
socket.send(txPacket);
}
}
@@ -138,4 +169,8 @@ public class WifiCommunication {
running = false;
socket.close();
}
public String[] splitBufferIntoStrings(StringBuffer string){
String[] splitrxString2 = string.toString().split("\n");
return splitrxString2;
}
}

+ 2
- 0
app/src/main/res/menu/options_menu.xml View File

@@ -4,6 +4,8 @@
android:title="Rechteverwaltung" />
<item android:id="@+id/Sensoren"
android:title="Sensoren" />
<item android:id="@+id/Detection"
android:title="Detektionen" />
<item android:id="@+id/Impressum"
android:title="Impressum" />
</menu>

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