Gateway IoT LoRaWAN Công Nghiệp HC001 (Milesight UG56 Equivalent)

flowchart TD
    subgraph HW ["1. LỚP PHẦN CỨNG & NGOẠI VI"]
        LoRaMod["Module LoRa E220-900T30D (UART 1W)"]
        SimMod["Module 4G LTE & GPS A7680C (UART2)"]
        AdcSens["Cảm biến Nguồn PoE, Pin & Temp CPU"]
        EthWlan["Giao tiếp Ethernet LAN8720 / Wi-Fi RF"]
    end

    subgraph CORE0 ["2. FREERTOS CORE 0 (Mạng & Hạ Tầng)"]
        T_NET["Task_Network (Failover & WireGuard VPN)"]
        T_SIM["Task_SIM_A7680C (AT Commands & GPS)"]
        T_CLI["Task_Serial_CLI (Console Debugging)"]
    end

    subgraph CORE1 ["3. FREERTOS CORE 1 (LoRa Radio & Dịch Vụ)"]
        T_LORA["Task_LoRa_PacketForwarder"]
        T_WEB["Task_WebServer (Async Web & REST API)"]
        T_HB["Task_Heartbeat (Stats & Keepalive)"]
        T_PWR["Task_Sensor_Power (ADC & Power Monitor)"]
    end

    subgraph IPC ["4. HÀNG ĐỢI FREERTOS (Queues)"]
        Q_LORA[("g_loraRxQueue (Queue 20 x 284B)")]
        M_STATE[("g_stateMutex (Recursive Mutex)")]
    end

    subgraph CLOUD ["5. NỀN TẢNG CLOUD TRUNG TÂM"]
        ChirpStack["ChirpStack v4 / TTN Server"]
        WireGuardServer["Server WireGuard VPN"]
    end

    LoRaMod --> T_LORA
    T_LORA --> Q_LORA
    Q_LORA --> T_NET
    SimMod --> T_SIM
    T_SIM --> T_NET
    T_NET --> EthWlan
    EthWlan --> WireGuardServer
    T_NET --> ChirpStack