System Architecture

Nova Automation moves away from monolithic legacy designs, adopting a modern Micro-Modular Architecture. usage of distinct Windows Services ensures high availability and easier troubleshooting.

The Core

At the center is the Nova Core, a WPF-based application running on .NET 9.0. It handles:

• User Interface (Touch-optimized)
• Shift & User Management
• Reporting & Visuals
• Order Processing

Communication Layer (Windows Services)

Hardware interaction is offloaded to dedicated background services. If the UI restarts, pumps keep pumping.

⛽ Pump Communication Service

• Role: Manages real-time protocols (Gilbarco, S4 Dart).
• Function: Polls pumps for state (Idle, Call, Busy), sends authorization commands, and captures transaction data.
• Resilience: Automatically attempts reconnection if serial cables are unplugged.

🛢️ Tank Management Service

• Role: Talks to Probes (e.g., Start Italiana).
• Function: Monitors fuel levels, temperature, and water presence. Handles volume calculation algorithms using tank calibration tables.

💳 Authorization Services

• RFID Service: Handles customer tags and pre-checks credit limits.
• Card Reader Service: Manages pump-integrated card readers (e.g., Stellar Gen2).

Data Flow

1. Hardware sends data to Communication Service.
2. Service writes "Hot Data" to the Local SQL Database.
3. Nova Core reads the database to update the UI (via SignalR or Polling).
4. Sync Service pushes visualized data to the Nexus Cloud.