OpenHarmony Edge IoT Gateway

基于 OpenHarmony 的分布式边缘物联网网关。

1. Project Introduction

本项目基于 OpenHarmony 5.0 与 DAYU200 开发板，实现一个面向物联网场景的边缘智能网关。

网关计划支持：

• TCP 设备接入
• 边缘风险评估
• 本地硬件联动
• OpenHarmony NAPI 原生扩展
• 分布式软总线设备协同
• HDF 硬件抽象接口

项目采用 OpenHarmony 标准系统部件化开发方式，包含 services、adapter、hardware、napi、interfaces 等模块。

2. Architecture

STM32 / ESP32 Sensor Node
        │
   TCP / MQTT / UART
        │
DAYU200 OpenHarmony Gateway
 ├── DeviceManager
 ├── RuleEngine
 ├── AlarmManager
 ├── HardwareCtrl
 ├── GatewayNAPI
 └── SoftBusAdapter
        │
 Distributed Communication
        │
Phone / Tablet / Other OpenHarmony Device

3. Directory Structure

openharmony_gateway/
├── adapter/                 # TCP / SoftBus adapters
│   ├── BUILD.gn
│   ├── tcp_adapter.cpp
│   └── softbus_adapter.cpp
├── hardware/                # Hardware abstraction layer
│   ├── BUILD.gn
│   └── hardware_ctrl.cpp
├── interfaces/
│   └── inner_api/           # Internal APIs
│       └── gateway_manager.h
├── napi/                    # ArkTS native bridge
│   ├── BUILD.gn
│   └── gateway_napi.cpp
├── services/                # Gateway core services
│   ├── BUILD.gn
│   ├── gateway_service.cpp
│   ├── device_manager.cpp
│   ├── rule_engine.cpp
│   └── alarm_manager.cpp
├── BUILD.gn
└── bundle.json

4. Core Modules

DeviceManager

负责设备注册、设备状态维护与设备生命周期管理。

RuleEngine

负责边缘风险评估，根据传感器数据计算风险等级。

AlarmManager

负责告警生成、本地告警状态维护与硬件联动控制。

TcpAdapter

负责 TCP 设备接入、数据接收与协议解析。

SoftBusAdapter

负责 OpenHarmony 分布式软总线通信，用于设备发现与跨设备协同。

HardwareCtrl

负责封装本地硬件控制接口，例如 LED、蜂鸣器、继电器等。

GatewayNAPI

负责向 ArkTS 层暴露网关原生能力接口。

5. Build

Place this component into the OpenHarmony source tree:

/iot_gateway/openharmony_gateway

Then add this component to the product configuration.

Build full image:

./build.sh --product-name rk3568 --ccache

Build gateway component only:

./build.sh --product-name rk3568 --build-target gateway_component --ccache

6. Roadmap

• OpenHarmony component integration
• NAPI framework skeleton
• Gateway service skeleton
• TCP sensor communication
• Edge rule engine
• Alarm manager
• Hardware control abstraction
• SoftBus distributed communication
• ArkTS UI panel
• System test on DAYU200

7. Tech Stack

• OpenHarmony 5.0
• DAYU200 / RK3568
• C++
• ArkTS
• NAPI
• GN / Ninja
• TCP Socket
• Distributed SoftBus
• HDF

8. License

Apache-2.0