diff --git a/CMakeLists.txt b/CMakeLists.txt
index f759206..08aed74 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 set(CMAKE_AUTOUIC ON)
 
-if(WIN32)
+if (WIN32)
     # Укажи путь к Qt6
     set(CMAKE_PREFIX_PATH "C:/Qt/6.9.0/msvc2022_arm64")
     list(APPEND CMAKE_PREFIX_PATH "C:/Users/User/.vcpkg-clion/vcpkg/installed/arm64-windows")
@@ -14,14 +14,22 @@ if(WIN32)
     set(Tesseract_DIR "C:/Users/User/.vcpkg-clion/vcpkg/installed/arm64-windows/share/tesseract")
 
     find_package(Tesseract CONFIG REQUIRED)
-elseif(APPLE)
+elseif (APPLE)
     # Укажи путь к Qt6
     set(CMAKE_PREFIX_PATH "/opt/homebrew/opt/qt")
     include_directories("/opt/homebrew/opt/tesseract/include")
     link_directories("/opt/homebrew/opt/tesseract/lib")
-endif()
+endif ()
 
-find_package(Qt6 REQUIRED COMPONENTS Widgets)
+find_package(Qt6 REQUIRED COMPONENTS
+        Widgets
+        Sql
+)
+
+file(GLOB_RECURSE DB_SOURCES
+        "${CMAKE_CURRENT_SOURCE_DIR}/database/*.cpp"
+        "${CMAKE_CURRENT_SOURCE_DIR}/database/*.h"
+)
 
 file(GLOB_RECURSE VIEW_SOURCES
         "${CMAKE_CURRENT_SOURCE_DIR}/views/*.cpp"
@@ -37,11 +45,13 @@ add_executable(ARCDesktopProject
         main.cpp
         ${VIEW_SOURCES}
         ${SERVICES_SOURCES}
+        ${DB_SOURCES}
 )
 
-if(WIN32)
+if (WIN32)
     target_link_libraries(ARCDesktopProject
             Qt6::Widgets
+            Qt6::Sql
             Tesseract::libtesseract
     )
 
@@ -49,9 +59,10 @@ if(WIN32)
     file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/images" DESTINATION "${CMAKE_BINARY_DIR}")
     file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/rus.traineddata" DESTINATION "${CMAKE_BINARY_DIR}")
 
-elseif(APPLE)
+elseif (APPLE)
     target_link_libraries(ARCDesktopProject
             Qt6::Widgets
+            Qt6::Sql
             tesseract
     )
-endif()
\ No newline at end of file
+endif ()
\ No newline at end of file
diff --git a/database/app_data.db b/database/app_data.db
new file mode 100644
index 0000000..d5b3627
Binary files /dev/null and b/database/app_data.db differ
diff --git a/database/dao/common_data_dao.cpp b/database/dao/common_data_dao.cpp
new file mode 100644
index 0000000..ccb20e7
--- /dev/null
+++ b/database/dao/common_data_dao.cpp
@@ -0,0 +1,47 @@
+#include "common_data_dao.h"
+#include "../database_manager.h"
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+
+QDateTime CommonDataDAO::getLastScan() {
+    QSqlQuery query(DatabaseManager::instance().database());
+    query.prepare("SELECT lastScan FROM common_data WHERE id = 1");
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при получении lastScan:" << query.lastError().text();
+        return {};
+    }
+
+    if (query.next()) {
+        const QString timestamp = query.value(0).toString();
+        return QDateTime::fromString(timestamp, Qt::ISODate);
+    }
+
+    return {};
+}
+
+bool CommonDataDAO::updateLastScan(const QDateTime& newTime) {
+    QSqlQuery query(DatabaseManager::instance().database());
+    query.prepare("UPDATE common_data SET lastScan = :time WHERE id = 1");
+    query.bindValue(":time", newTime.toString(Qt::ISODate));
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при обновлении lastScan:" << query.lastError().text();
+        return false;
+    }
+
+    if (query.numRowsAffected() == 0) {
+        QSqlQuery insertQuery(DatabaseManager::instance().database());
+        insertQuery.prepare("INSERT INTO common_data (id, lastScan) VALUES (1, :time)");
+        insertQuery.bindValue(":time", newTime.toString(Qt::ISODate));
+
+        if (!insertQuery.exec()) {
+            qWarning() << "Ошибка при INSERT lastScan:" << insertQuery.lastError().text();
+            return false;
+        }
+    }
+
+    return true;
+}
diff --git a/database/dao/common_data_dao.h b/database/dao/common_data_dao.h
new file mode 100644
index 0000000..faccd5f
--- /dev/null
+++ b/database/dao/common_data_dao.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <QString>
+#include <QDateTime>
+
+class CommonDataDAO {
+public:
+    [[nodiscard]] static QDateTime getLastScan();
+
+    [[nodiscard]] static bool updateLastScan(const QDateTime &newTime);
+};
diff --git a/database/dao/device_dao.cpp b/database/dao/device_dao.cpp
new file mode 100644
index 0000000..32368eb
--- /dev/null
+++ b/database/dao/device_dao.cpp
@@ -0,0 +1,75 @@
+#include "device_dao.h"
+#include <QSqlQuery>
+#include <QSqlError>
+#include <QVariant>
+#include <QDebug>
+#include "../database_manager.h"
+
+bool DeviceDAO::upsertDevice(const DeviceInfo& device) {
+    QSqlQuery query(DatabaseManager::instance().database());
+
+    // Проверка: существует ли запись
+    query.prepare("SELECT COUNT(*) FROM devices WHERE id = :id");
+    query.bindValue(":id", device.id);
+
+    if (!query.exec() || !query.next()) {
+        qWarning() << "Ошибка при проверке существования записи:" << query.lastError().text();
+        return false;
+    }
+
+    bool exists = query.value(0).toInt() > 0;
+
+    if (exists) {
+        // Обновление
+        query.prepare(R"(
+            UPDATE devices SET
+                status = :status,
+                name = :name,
+                android = :android,
+                screen_width = :width,
+                screen_height = :height,
+                battery = :battery,
+                updateTime = :updateTime
+            WHERE id = :id
+        )");
+    } else {
+        // Вставка
+        query.prepare(R"(
+            INSERT INTO devices (
+                id, status, name, android, screen_width, screen_height, battery, updateTime
+            ) VALUES (
+                :id, :status, :name, :android, :width, :height, :battery, :updateTime
+            )
+        )");
+    }
+
+    query.bindValue(":id", device.id);
+    query.bindValue(":status", device.status);
+    query.bindValue(":name", device.name);
+    query.bindValue(":android", device.android);
+    query.bindValue(":width", device.screenWidth);
+    query.bindValue(":height", device.screenHeight);
+    query.bindValue(":battery", device.battery);
+    query.bindValue(":updateTime", device.updateTime.toString(Qt::ISODate));
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при вставке/обновлении устройства:" << query.lastError().text();
+        return false;
+    }
+
+    return true;
+}
+
+bool DeviceDAO::updateImage(const QString& deviceId, const QByteArray& imageData) {
+    QSqlQuery query(DatabaseManager::instance().database());
+    query.prepare("UPDATE devices SET image = :image WHERE id = :id");
+    query.bindValue(":image", imageData);
+    query.bindValue(":id", deviceId);
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при обновлении изображения:" << query.lastError().text();
+        return false;
+    }
+
+    return true;
+}
diff --git a/database/dao/device_dao.h b/database/dao/device_dao.h
new file mode 100644
index 0000000..8a9060f
--- /dev/null
+++ b/database/dao/device_dao.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDateTime>
+#include <QSqlDatabase>
+
+struct DeviceInfo {
+    QString id;
+    QString status;
+    QString name;
+    QString android;
+    int screenWidth;
+    int screenHeight;
+    int battery;
+    QDateTime updateTime;
+};
+
+class DeviceDAO {
+public:
+    [[nodiscard]] static bool upsertDevice(const DeviceInfo &device);
+
+    [[nodiscard]] static bool updateImage(const QString &deviceId, const QByteArray &imageData);
+};
diff --git a/database/database_manager.cpp b/database/database_manager.cpp
new file mode 100644
index 0000000..d49dfe8
--- /dev/null
+++ b/database/database_manager.cpp
@@ -0,0 +1,26 @@
+#include "database_manager.h"
+#include <QSqlError>
+#include <QtCore/qcoreapplication.h>
+
+DatabaseManager::DatabaseManager() {
+    db = QSqlDatabase::addDatabase("QSQLITE");
+    db.setDatabaseName(QCoreApplication::applicationDirPath()  + "/database/app_data.db");
+    if (!db.open()) {
+        qWarning() << "Ошибка открытия базы данных:" << db.lastError().text();
+    }
+}
+
+DatabaseManager::~DatabaseManager() {
+    if (db.isOpen()) {
+        db.close();
+    }
+}
+
+DatabaseManager& DatabaseManager::instance() {
+    static DatabaseManager instance;
+    return instance;
+}
+
+QSqlDatabase& DatabaseManager::database() {
+    return db;
+}
\ No newline at end of file
diff --git a/database/database_manager.h b/database/database_manager.h
new file mode 100644
index 0000000..7321c17
--- /dev/null
+++ b/database/database_manager.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <QSqlDatabase>
+
+class DatabaseManager final : public QObject {
+    Q_OBJECT
+public:
+    static DatabaseManager& instance();
+
+    QSqlDatabase& database();
+
+private:
+    DatabaseManager();
+    ~DatabaseManager() override;
+    QSqlDatabase db;
+};
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index 44c7d28..478db6e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,6 +2,9 @@
 #include <QThread>
 #include "views/MyWindow.h"
 #include <tesseract/baseapi.h>
+
+#include "database/database_manager.h"
+#include "database/dao/common_data_dao.h"
 #include "services/device_screener.h"
 
 void setupWorkerAndThread(QCoreApplication& app) {
@@ -42,26 +45,32 @@ int main(int argc, char *argv[]) {
     // Setup worker and thread
     setupWorkerAndThread(app);
 
+    const QDateTime current = QDateTime::currentDateTimeUtc();
+    qDebug() << "Обновление lastScan:" << CommonDataDAO::updateLastScan(current);
 
-    // tesseract, tesseract-lang
-    QImage image("./images/img.png");
-    if (image.isNull()) {
-        qDebug() << "Cant load the image";
-        return -1;
-    }
+    const QDateTime savedTime = CommonDataDAO::getLastScan();
+    qDebug() << "Сохранившееся время:" << savedTime.toString();
 
-    image = image.convertToFormat(QImage::Format_Grayscale8);
-
-    tesseract::TessBaseAPI tess;
-    if (tess.Init(nullptr, "rus")) {
-        qDebug() << "Ошибка инициализации Tesseract с русским языком....";
-        return -1;
-    }
-
-    tess.SetImage(image.bits(), image.width(), image.height(), 1, image.bytesPerLine());
-
-    QString result = QString::fromUtf8(tess.GetUTF8Text());
-    qDebug() << "Распознанный текст:" << result;
+    //
+    // // tesseract, tesseract-lang
+    // QImage image("./images/img.png");
+    // if (image.isNull()) {
+    //     qDebug() << "Cant load the image";
+    //     return -1;
+    // }
+    //
+    // image = image.convertToFormat(QImage::Format_Grayscale8);
+    //
+    // tesseract::TessBaseAPI tess;
+    // if (tess.Init(nullptr, "rus")) {
+    //     qDebug() << "Ошибка инициализации Tesseract с русским языком....";
+    //     return -1;
+    // }
+    //
+    // tess.SetImage(image.bits(), image.width(), image.height(), 1, image.bytesPerLine());
+    //
+    // QString result = QString::fromUtf8(tess.GetUTF8Text());
+    // qDebug() << "Распознанный текст:" << result;
 
 
     MyWindow window;
diff --git a/services/device_screener.cpp b/services/device_screener.cpp
index 8e14724..6927846 100644
--- a/services/device_screener.cpp
+++ b/services/device_screener.cpp
@@ -1,20 +1,140 @@
 #include "device_screener.h"
-#include <QDebug>
-#include <QThread>
 
-DeviceScreener::DeviceScreener(QObject* parent) : QObject(parent) {}
+#include <QRegularExpression>
+#include <QProcess>
+#include <QFile>
+#include <QThread>
+#include <../../database/dao/device_dao.h>
+
+DeviceScreener::DeviceScreener(QObject *parent) : QObject(parent) {
+}
 
 DeviceScreener::~DeviceScreener() = default;
 
 void DeviceScreener::start() {
     qDebug() << "Worker started in thread:" << QThread::currentThread();
     while (m_running) {
-        qDebug() << "Running in background...";
-        QThread::sleep(2);
+        QList<QPair<QString, QString>> devices = readAdbDevices();
+        for (const auto&[id, status] : devices) {
+            qDebug() << "Id:" << id << ", Status:" << status;
+
+            DeviceInfo device;
+            device.id = id;
+            device.status = status;
+            device.updateTime = QDateTime::currentDateTime();
+
+            if (status == "device") {
+                device = readDeviceInfo(id);
+                takeScreenshot(id);
+            }
+
+            qDebug() << "Update device: " << DeviceDAO::upsertDevice(device);
+        }
+        QThread::sleep(5);
     }
     emit finished();
 }
 
+bool DeviceScreener::takeScreenshot(const QString& deviceId) {
+    QProcess process;
+    QStringList arguments;
+
+    arguments << "-s" << deviceId << "exec-out" << "screencap" << "-p";
+    process.start("adb", arguments);
+
+    if (!process.waitForFinished(5000)) {
+        qWarning() << "ADB скриншот не завершился для" << deviceId;
+        return false;
+    }
+
+    const QByteArray imageData = process.readAllStandardOutput();
+
+    if (imageData.isEmpty()) {
+        qWarning() << "Скриншот пустой для " << deviceId;
+        return false;
+    }
+
+    // Обновляем изображение в БД
+    if (!DeviceDAO::updateImage(deviceId, imageData)) {
+        qWarning() << "Не удалось записать изображение в БД для" << deviceId;
+        return false;
+    }
+
+    qDebug() << "Screenshot saved, device: " << deviceId;
+    return true;
+}
+
+QList<QPair<QString, QString>> DeviceScreener::readAdbDevices() {
+    QProcess process;
+    process.start("adb", QStringList() << "devices");
+    process.waitForFinished();
+
+    const QString output = process.readAllStandardOutput();
+    // qDebug() << "[adb devices output]:\n" << output;
+    QList<QPair<QString, QString>> devices;
+    const QStringList lines = output.split('\n');
+    for (int i = 1; i < lines.size(); ++i) {
+        QString line = lines.at(i).trimmed();
+
+        if (line.isEmpty()) {
+            continue;
+        }
+        /**
+        * device — устройство готово к использованию.
+        * offline — устройство подключено, но не может быть использовано.
+        * unauthorized — устройство не авторизовано для работы с ADB (нужно подтвердить запрос на подключение на самом устройстве).
+        * recovery — устройство в режиме восстановления.
+        */
+        // Разделяем строку на id и type по табуляции
+        if (QStringList parts = line.split('\t'); parts.size() == 2) {
+            const QString& id = parts.at(0);
+            const QString& status = parts.at(1);
+            devices.append(qMakePair(id, status));
+        }
+    }
+    return devices;
+}
+
+static const QRegularExpression screenRegex(R"(Physical size: (\d+)x(\d+))");
+static const QRegularExpression batteryRegex(R"(level:\s*(\d+))");
+
+DeviceInfo DeviceScreener::readDeviceInfo(const QString& deviceId) {
+    DeviceInfo info;
+    info.id = deviceId;
+    info.screenWidth = 0;
+    info.screenHeight = 0;
+    info.battery = 0;
+
+    auto runAdbCommand = [&](const QStringList& args) -> QString {
+        QProcess process;
+        process.start("adb", QStringList{"-s", deviceId} + args);
+        process.waitForFinished();
+        return QString::fromUtf8(process.readAllStandardOutput()).trimmed();
+    };
+
+    info.name = runAdbCommand({"shell", "getprop", "ro.product.model"});
+    info.android = runAdbCommand({"shell", "getprop", "ro.build.version.release"});
+
+    // Размер экрана
+    const QString screenOutput = runAdbCommand({"shell", "wm", "size"});
+    QRegularExpressionMatch match = screenRegex.match(screenOutput);
+    if (match.hasMatch()) {
+        info.screenWidth = match.captured(1).toInt();
+        info.screenHeight = match.captured(2).toInt();
+    }
+
+    // Уровень батареи
+    const QString batteryOutput = runAdbCommand({"shell", "dumpsys", "battery"});
+    match = batteryRegex.match(batteryOutput);
+    if (match.hasMatch()) {
+        info.battery = match.captured(1).toInt();
+    }
+
+    info.updateTime = QDateTime::currentDateTime();
+    return info;
+}
+
+
 void DeviceScreener::stop() {
     m_running = false;
-}
\ No newline at end of file
+}
diff --git a/services/device_screener.h b/services/device_screener.h
index 7e23a0f..54266f2 100644
--- a/services/device_screener.h
+++ b/services/device_screener.h
@@ -1,19 +1,29 @@
 #pragma once
 #include <QObject>
+#include <../../database/dao/device_dao.h>
 
 class DeviceScreener final : public QObject {
     Q_OBJECT
+
 public:
-    explicit DeviceScreener(QObject* parent = nullptr);
+    explicit DeviceScreener(QObject *parent = nullptr);
+
     ~DeviceScreener() override;
 
-    public slots:
-        void start();
+public slots:
+    void start();
+
     void stop();
 
-    signals:
-        void finished();
+signals:
+    void finished();
 
 private:
     bool m_running = true;
-};
\ No newline at end of file
+
+    static QList<QPair<QString, QString> > readAdbDevices();
+
+    static bool takeScreenshot(const QString &deviceId);
+
+    static DeviceInfo readDeviceInfo(const QString &deviceId);
+};