基于HarmonyOS的智能家居控制面板开发与HiLink设备协同 原创

基于HarmonyOS的智能家居控制面板开发与HiLink设备协同

一、项目概述

本项目基于HarmonyOS的HiLink生态能力，开发一个支持多设备协同的智能家居控制面板应用。参考《鸿蒙跨端U同步:同一局游戏中多设备玩家昵称/头像显示》中的分布式技术，实现HiLink设备的集中控制和状态同步。

!https://example.com/smart-home-arch.png
图1：智能家居系统架构（包含UI控制层、HiLink连接层和分布式同步层）

二、核心功能实现
HiLink设备连接与管理（ArkTS）

// HiLink设备管理器
class HiLinkDeviceManager {
private static instance: HiLinkDeviceManager;
private devices: HiLinkDevice[] = [];
private hilink: any; // HiLink SDK实例

static getInstance(): HiLinkDeviceManager {
if (!HiLinkDeviceManager.instance) {
HiLinkDeviceManager.instance = new HiLinkDeviceManager();
return HiLinkDeviceManager.instance;

constructor() {

this.initHiLinkSDK();
this.startDiscovery();

// 初始化HiLink SDK

private initHiLinkSDK() {
this.hilink = require(‘@ohos/hilink’);
this.hilink.init({
appId: ‘YOUR_APP_ID’,
appSecret: ‘YOUR_APP_SECRET’
});

// 注册设备状态回调
this.hilink.on('deviceStatusChanged', (device: HiLinkDevice) => {
  this.updateDeviceStatus(device);
});

// 开始设备发现

private startDiscovery() {
this.hilink.startDiscovery({
discoveryDuration: 30000,
onDeviceFound: (device: HiLinkDevice) => {
if (!this.devices.some(d => d.deviceId === device.deviceId)) {
this.devices.push(device);
this.connectToDevice(device);
}

});

// 连接到设备

private async connectToDevice(device: HiLinkDevice) {
try {
await this.hilink.connectDevice({
deviceId: device.deviceId,
timeout: 5000
});
console.log(设备连接成功: ${device.deviceName});
catch (error) {

  console.error(设备连接失败: ${device.deviceName}, error);

}

// 更新设备状态
private updateDeviceStatus(device: HiLinkDevice) {
const index = this.devices.findIndex(d => d.deviceId === device.deviceId);
if (index >= 0) {
this.devices[index] = { …this.devices[index], …device };
this.notifyListeners();
}

// 获取设备列表
getDevices(): HiLinkDevice[] {
return […this.devices];
// 控制设备

async controlDevice(deviceId: string, command: DeviceCommand): Promise<boolean> {
const device = this.devices.find(d => d.deviceId === deviceId);
if (!device) return false;

try {
  const result = await this.hilink.sendCommand({
    deviceId: deviceId,
    serviceId: command.serviceId,
    command: command.command
  });
  return result.success;

catch (error) {

  console.error('控制命令发送失败:', error);
  return false;

}

// HiLink设备类型

interface HiLinkDevice {
deviceId: string;
deviceName: string;
deviceType: ‘light’ ‘switch’ ‘thermostat’
‘sensor’;
online: boolean;
status: Record<string, any>;
// 设备控制命令

interface DeviceCommand {
serviceId: string;
command: {
name: string;
params: Record<string, any>;
};

分布式状态同步实现（ArkTS）

// 设备状态同步服务
class DeviceSyncService {
private static instance: DeviceSyncService;
private distObject: distributedDataObject.DataObject;

static getInstance(): DeviceSyncService {
if (!DeviceSyncService.instance) {
DeviceSyncService.instance = new DeviceSyncService();
return DeviceSyncService.instance;

constructor() {

// 初始化分布式数据对象
this.distObject = distributedDataObject.create({
  deviceStates: {},
  controlCommands: []
});

// 监听数据变化
this.distObject.on('change', (fields: string[]) => {
  if (fields.includes('deviceStates')) {
    this.handleStateUpdate();

if (fields.includes(‘controlCommands’)) {

    this.handleCommandUpdate();

});

// 同步设备状态

syncDeviceState(deviceId: string, state: Record<string, any>) {
const deviceStates = this.distObject.deviceStates as Record<string, any>;
deviceStates[deviceId] = { …state, timestamp: Date.now() };
this.distObject.deviceStates = { …deviceStates };

this.syncToConnectedDevices();

// 同步控制命令

syncControlCommand(deviceId: string, command: DeviceCommand) {
const commands = this.distObject.controlCommands as Array<any>;
this.distObject.controlCommands = [
…commands,
deviceId,

    command,
    timestamp: Date.now(),
    sourceDevice: deviceInfo.deviceId

];

this.syncToConnectedDevices();

// 处理状态更新

private handleStateUpdate() {
const remoteStates = this.distObject.deviceStates as Record<string, any>;
const deviceManager = HiLinkDeviceManager.getInstance();

Object.entries(remoteStates).forEach(([deviceId, state]) => {
  const device = deviceManager.getDevices().find(d => d.deviceId === deviceId);
  if (device) {
    // 只接受更新的状态（时间戳比较）
    if (!device.status.timestamp || state.timestamp > device.status.timestamp) {
      deviceManager.updateDeviceStatus({
        deviceId,
        ...state
      });

}

});

// 处理命令更新

private handleCommandUpdate() {
const commands = this.distObject.controlCommands as Array<{
deviceId: string;
command: DeviceCommand;
timestamp: number;
sourceDevice: string;
}>;

const deviceManager = HiLinkDeviceManager.getInstance();
commands.forEach(cmd => {
  // 只处理来自其他设备的命令
  if (cmd.sourceDevice !== deviceInfo.deviceId) {
    deviceManager.controlDevice(cmd.deviceId, cmd.command);

});

// 清空已处理命令
this.distObject.controlCommands = [];

// 同步到已连接设备

private syncToConnectedDevices() {
const targetDevices = deviceManager.getConnectedDevices()
.map(d => d.deviceId)
.filter(id => id !== deviceInfo.deviceId);

if (targetDevices.length > 0) {
  this.distObject.setDistributed(targetDevices);

}

UI界面实现（ArkTS）

// 主页面组件
@Entry
@Component
struct SmartHomePage {
@State devices: HiLinkDevice[] = [];
@State currentRoom: string = ‘living_room’;
@State connectedDevices: number = 0;

private deviceManager = HiLinkDeviceManager.getInstance();
private deviceSync = DeviceSyncService.getInstance();

aboutToAppear() {
this.devices = this.deviceManager.getDevices();

// 监听设备变化
this.deviceManager.addListener(() => {
  this.devices = this.deviceManager.getDevices();
});

// 监听设备连接变化
deviceManager.on('deviceStateChange', () => {
  this.connectedDevices = deviceManager.getConnectedDevices().length;
});

this.connectedDevices = deviceManager.getConnectedDevices().length;

build() {

Column() {
  // 标题栏
  Row() {
    Text('智能家居控制')
      .fontSize(24)
      .fontWeight(FontWeight.Bold)
      
    DeviceSyncIndicator()

.width(‘100%’)

  .padding(16)
  
  // 房间切换
  RoomTabs({
    currentRoom: this.currentRoom,
    onRoomChange: (room: string) => {
      this.currentRoom = room;

})

  // 设备列表
  Scroll() {
    Column() {
      ForEach(this.devices.filter(d => d.room === this.currentRoom), (device: HiLinkDevice) => {
        DeviceCard({ device: device })
      })

.width(‘100%’)

    .padding(16)

.layoutWeight(1)

.height(‘100%’)

.backgroundColor('#F5F5F5')

}

// 设备卡片组件
@Component
struct DeviceCard {
@Prop device: HiLinkDevice;
@State isExpanded: boolean = false;

private deviceManager = HiLinkDeviceManager.getInstance();
private deviceSync = DeviceSyncService.getInstance();

build() {
Column() {
// 设备基本信息
Row() {
Image(this.getDeviceIcon())
.width(40)
.height(40)
.margin({ right: 12 })

    Column() {
      Text(this.device.deviceName)
        .fontSize(16)
      
      Text(this.device.online ? '在线' : '离线')
        .fontSize(12)
        .fontColor(this.device.online ? '#4CAF50' : '#F44336')

.layoutWeight(1)

    Button(this.isExpanded ? '收起' : '控制')
      .onClick(() => {
        this.isExpanded = !this.isExpanded;
      })

.width(‘100%’)

  .padding(12)
  
  // 设备控制面板
  if (this.isExpanded && this.device.online) {
    this.buildControlPanel()

}

.width('100%')
.margin({ bottom: 12 })
.backgroundColor('#FFFFFF')
.borderRadius(8)

@Builder

buildControlPanel() {
switch (this.device.deviceType) {
case ‘light’:
this.buildLightControls();
break;
case ‘switch’:
this.buildSwitchControls();
break;
case ‘thermostat’:
this.buildThermostatControls();
break;
default:
Text(‘不支持的控制类型’)
.fontSize(14)
.fontColor(‘#999999’)
.padding(12)
}

// 灯光控制面板
@Builder
buildLightControls() {
const lightState = this.device.status as LightState;

Column() {
  Row() {
    Text('开关')
      .fontSize(14)
      .layoutWeight(1)
      
    Toggle({
      type: ToggleType.Switch,
      isOn: lightState.power === 'on'
    })
    .onChange((isOn: boolean) => {
      this.sendControlCommand({
        serviceId: 'power',
        command: {
          name: 'setPower',
          params: {
            power: isOn ? 'on' : 'off'

}

      });
    })

.width(‘100%’)

  .padding(12)
  
  if (lightState.power === 'on') {
    Slider({
      value: lightState.brightness,
      min: 0,
      max: 100,
      step: 1
    })
    .width('90%')
    .onChange((value: number) => {
      this.sendControlCommand({
        serviceId: 'brightness',
        command: {
          name: 'setBrightness',
          params: {
            brightness: value

}

      });
    })
    
    Row() {
      Text('0%')
        .fontSize(12)
      
      Text(${lightState.brightness}%)
        .fontSize(14)
        .layoutWeight(1)
        .textAlign(TextAlign.Center)
      
      Text('100%')
        .fontSize(12)

.width(‘90%’)

}

.padding({ bottom: 12 })

// 发送控制命令

private sendControlCommand(command: DeviceCommand) {
this.deviceManager.controlDevice(this.device.deviceId, command);
this.deviceSync.syncControlCommand(this.device.deviceId, command);
// 获取设备图标

private getDeviceIcon(): Resource {
switch (this.device.deviceType) {
case ‘light’: return $r(‘app.media.ic_light’);
case ‘switch’: return $r(‘app.media.ic_switch’);
case ‘thermostat’: return $r(‘app.media.ic_thermostat’);
default: return $r(‘app.media.ic_device’);
}

// 房间标签页组件

@Component
struct RoomTabs {
@Prop currentRoom: string;
@Link onRoomChange: (room: string) => void;

private rooms = [
id: ‘living_room’, name: ‘客厅’ },

id: ‘bedroom’, name: ‘卧室’ },

id: ‘kitchen’, name: ‘厨房’ },

id: ‘bathroom’, name: ‘卫生间’ }

];

build() {
Row() {
ForEach(this.rooms, (room: { id: string, name: string }) => {
Button(room.name)
.stateEffect(this.currentRoom === room.id)
.margin({ right: 8 })
.onClick(() => {
this.onRoomChange(room.id);
})
})
.width(‘100%’)

.padding(16)
.backgroundColor('#FFFFFF')

}

// 设备同步指示器组件
@Component
struct DeviceSyncIndicator {
@State connectedDevices: number = 0;

aboutToAppear() {
deviceManager.on(‘deviceStateChange’, () => {
this.connectedDevices = deviceManager.getConnectedDevices().length;
});

this.connectedDevices = deviceManager.getConnectedDevices().length;

build() {

Row() {
  Image($r('app.media.ic_sync'))
    .width(16)
    .height(16)
    
  Text(${this.connectedDevices})
    .fontSize(16)
    .margin({ left: 4 })

}

三、关键功能说明
HiLink设备连接流程

设备发现：

  this.hilink.startDiscovery({
 discoveryDuration: 30000,
 onDeviceFound: (device) => {
   this.devices.push(device);

});

设备控制：

  this.hilink.sendCommand({
 deviceId: deviceId,
 serviceId: 'power',
 command: { name: 'setPower', params: { power: 'on' } }

});

分布式同步策略

数据类型 同步方式 冲突解决

设备状态 状态同步 时间戳比对
控制命令 操作同步 顺序执行

多设备协同控制流程

sequenceDiagram
participant 手机A
participant 手机B
participant HiLink设备

手机A->>HiLink设备: 发送开灯命令
手机A->>手机B: 同步控制命令
手机B->>HiLink设备: 验证并执行命令
HiLink设备->>所有设备: 状态更新通知

四、项目扩展与优化
功能扩展建议

情景模式：

  setSceneMode(scene: 'home' 'away'

‘sleep’) {
// 批量控制多个设备

定时任务：

  scheduleTask(deviceId: string, time: string, action: string) {
 // 实现定时控制

能耗统计：

  getEnergyConsumption(deviceId: string): Promise<number> {
 // 获取设备能耗数据

性能优化建议

批量状态同步：

  // 累积多个状态更新后批量同步

private batchStates: Record<string, any> = {};

本地缓存：

  // 缓存设备状态减少网络请求

localStorage.set(‘device_cache’, JSON.stringify(devices));

五、总结

本项目基于HarmonyOS和HiLink生态实现了具有以下特点的智能家居控制系统：
广泛的设备兼容：支持各类HiLink智能设备

实时的状态同步：多终端设备状态一致

直观的控制界面：分类展示、状态可视化

稳定的连接管理：自动重连、离线处理

通过参考《鸿蒙跨端U同步:同一局游戏中多设备玩家昵称/头像显示》的技术方案，我们验证了HarmonyOS在物联网领域的强大能力，为开发者提供了构建智能家居应用的实践参考。

注意事项：
实际开发中需要申请HiLink开发者权限

不同设备类型的控制参数需单独适配

生产环境需要添加权限管理和安全控制

可根据具体需求扩展语音控制等功能