SmartFactoryDeviceMonitor

A WPF application targeting .NET Framework 4.7.2 for monitoring smart factory devices. It aggregates telemetry, exposes data via OPC UA and REST, publishes MQTT messages, and tracks device heartbeats.

Features

• Device management and in-memory device store
• OPC UA server with custom node manager (SmartFactoryNodeManager) exposing device data
• OPC UA client window for browsing/reading values
• REST API with snapshot and Server-Sent Events streaming (RestStreamingService)
• MQTT telemetry publishing (MqttTelemetryService)
• UDP heartbeat listener/sender (HeartbeatService) for online status checks
• Basic login/session model (LoginWindow, AppSession, User, UserRole)
• Simple logging and alert models

Run

• Start the WPF app. The OPC UA server and REST streaming service can be started from the main window or initialized via corresponding services.
• REST API default base prefix: http://localhost:5005/

Login

• admin / admin123 — Administrator role
• operator / operator123 — Operator role

REST API

• GET /api/devices — JSON snapshot of current devices
• GET /api/devices/stream — text/event-stream (SSE) that emits device JSON every second

OPC UA

• Namespace URI: urn:SmartFactoryDeviceMonitor
• Address Space:
  • Objects/Devices/Device_{Id} with variables: Name, Status, Temperature, Voltage
• Server setup in Services/Opc/SmartFactoryOpcServer.cs
• Node manager in Services/Opc/SmartFactoryNodeManager.cs

Heartbeat

• UDP listener on port 50000 (HeartbeatService)
• Heartbeat message format: HB|{deviceId}
• IsDeviceOnline(deviceId, timeout) checks last heartbeat timestamp

MQTT

• Publishes telemetry from devices (MqttTelemetryService). Configure broker settings in the service as needed.

Project Structure

• Models/ — Device, DeviceStatus, Alert, User, UserRole
• Services/ — DeviceService, LoggingService, HeartbeatService, RestStreamingService, OpcUaService, OpcUaClientService, Opc/SmartFactoryOpcServer, Opc/SmartFactoryNodeManager, MqttTelemetryService
• Persistence/MainDatabase.cs — placeholder for data persistence
• UI: MainWindow, LoginWindow, OpcUaClientWindow, DeviceChartWindow