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鸿蒙跨端智能窗帘控制系统开发指南 原创
进修的泡芙
发布于 2025-6-22 17:31
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鸿蒙跨端智能窗帘控制系统开发指南
一、项目概述
本文基于HarmonyOS的光照传感能力和分布式技术，开发一款智能窗帘控制系统。该系统能够根据环境光照强度自动调节窗帘开合程度，并将控制状态同步到多设备，借鉴了《鸿蒙跨端U同步》中多设备数据同步的技术原理。
二、系统架构
±--------------------+ ±--------------------+ ±--------------------+
主控制设备 <-----> 分布式数据总线 <-----> 窗帘执行设备
(手机/平板) (Distributed Bus) (智能窗帘电机)
±---------±---------+ ±---------±---------+ ±---------±---------+
±---------v----------+ ±---------v----------+ ±---------v----------+
光照检测模块 窗帘控制模块 状态同步模块
(Light Detection) (Curtain Control) (Status Sync)
±--------------------+ ±--------------------+ ±--------------------+
三、核心代码实现
窗帘控制服务
// src/main/ets/service/CurtainService.ts
import { distributedData } from ‘@ohos.data.distributedData’;
import { BusinessError } from ‘@ohos.base’;
import { sensor } from ‘@ohos.sensor’;
import { iot } from ‘@ohos.iot’;
interface CurtainState {
position: number; // 0-100，0表示完全关闭，100表示完全打开
lightLevel: number; // 光照强度(lux)
mode: ‘auto’ ‘manual’
‘timer’;
timestamp: number;
export class CurtainService {
private static instance: CurtainService;
private kvStore: distributedData.KVStore | null = null;
private readonly STORE_ID = ‘curtain_state_store’;
private lightSensor: sensor.Sensor | null = null;
private currentState: CurtainState = {
position: 50,
lightLevel: 0,
mode: ‘auto’,
timestamp: Date.now()
};
private iotController: iot.IoTController | null = null;
private constructor() {
this.initKVStore();
this.initLightSensor();
this.initIoTController();
public static getInstance(): CurtainService {
if (!CurtainService.instance) {
CurtainService.instance = new CurtainService();
return CurtainService.instance;
private async initKVStore(): Promise<void> {
try {
const options: distributedData.KVManagerConfig = {
bundleName: 'com.example.smartcurtain',
userInfo: {
userId: '0',
userType: distributedData.UserType.SAME_USER_ID
};
const kvManager = distributedData.createKVManager(options);
this.kvStore = await kvManager.getKVStore({
storeId: this.STORE_ID,
options: {
createIfMissing: true,
encrypt: false,
backup: false,
autoSync: true,
kvStoreType: distributedData.KVStoreType.SINGLE_VERSION
});
this.kvStore.on('dataChange', distributedData.SubscribeType.SUBSCRIBE_TYPE_REMOTE, (data) => {
data.insertEntries.forEach((entry: distributedData.Entry) => {
if (entry.key === 'curtain_state') {
this.notifyStateChange(entry.value.value as CurtainState);
});
});
catch (e) {
console.error(Failed to initialize KVStore. Code: {e.code}, message: {e.message});
}
private async initLightSensor(): Promise<void> {
try {
this.lightSensor = await sensor.getDefaultSensor(sensor.SensorType.SENSOR_TYPE_LIGHT);
this.lightSensor.on('change', (data: sensor.LightResponse) => {
this.handleLightChange(data);
});
await this.lightSensor.setInterval(5000); // 5秒采样一次
catch (e) {
console.error(Failed to initialize light sensor. Code: {e.code}, message: {e.message});
}
private async initIoTController(): Promise<void> {
try {
this.iotController = await iot.createController({
deviceId: ‘curtain_motor_001’,
type: iot.DeviceType.CURTAIN
});
catch (e) {
console.error(Failed to initialize IoT controller. Code: {e.code}, message: {e.message});
}
private handleLightChange(data: sensor.LightResponse): void {
this.currentState.lightLevel = data.lightIntensity;
this.currentState.timestamp = Date.now();
if (this.currentState.mode === 'auto') {
this.adjustCurtainAuto();
this.scheduleSync();
private adjustCurtainAuto(): void {
let targetPosition = 50; // 默认位置
// 根据光照强度计算目标位置
if (this.currentState.lightLevel < 50) {
targetPosition = 0; // 光线很暗，完全关闭
else if (this.currentState.lightLevel < 200) {
targetPosition = 25; // 光线较暗，部分关闭
else if (this.currentState.lightLevel < 1000) {
targetPosition = 50; // 中等光线，半开
else if (this.currentState.lightLevel < 5000) {
targetPosition = 75; // 光线充足，大部分打开
else {
targetPosition = 100; // 强光，完全打开
this.setCurtainPosition(targetPosition);
public async setCurtainPosition(position: number): Promise<void> {
if (position < 0) position = 0;
if (position > 100) position = 100;
this.currentState.position = position;
this.currentState.timestamp = Date.now();
if (this.iotController) {
try {
await this.iotController.setPosition(position);
catch (e) {
console.error(Failed to set curtain position. Code: {e.code}, message: {e.message});
}
await this.syncState();
public async setMode(mode: ‘auto’ ‘manual’
‘timer’): Promise<void> {
this.currentState.mode = mode;
this.currentState.timestamp = Date.now();
await this.syncState();
private scheduleSync(): void {
if (this.syncTimer) {
clearTimeout(this.syncTimer);
this.syncTimer = setTimeout(() => {
this.syncState();
this.syncTimer = null;
}, 2000); // 2秒内多次更新只同步一次
private syncTimer: number | null = null;
private async syncState(): Promise<void> {
if (this.kvStore) {
try {
await this.kvStore.put(‘curtain_state’, { value: this.currentState });
catch (e) {
console.error(Failed to sync curtain state. Code: {e.code}, message: {e.message});
}
private notifyStateChange(newState: CurtainState): void {
// 使用时间戳解决冲突 - 保留最新的状态
if (newState.timestamp > this.currentState.timestamp) {
this.currentState = newState;
}
public async getCurrentState(): Promise<CurtainState> {
if (!this.kvStore) return this.currentState;
try {
const entry = await this.kvStore.get('curtain_state');
return entry?.value || this.currentState;
catch (e) {
console.error(Failed to get curtain state. Code: {e.code}, message: {e.message});
return this.currentState;
}
public async destroy(): Promise<void> {
if (this.kvStore) {
this.kvStore.off(‘dataChange’);
if (this.lightSensor) {
this.lightSensor.off('change');
if (this.iotController) {
await this.iotController.release();
}
窗帘控制组件
// src/main/ets/components/CurtainControl.ets
@Component
export struct CurtainControl {
private curtainService = CurtainService.getInstance();
@State currentState: CurtainState = {
position: 50,
lightLevel: 0,
mode: ‘auto’,
timestamp: 0
};
@State showModeDialog: boolean = false;
aboutToAppear(): void {
this.loadCurrentState();
private async loadCurrentState(): Promise<void> {
this.currentState = await this.curtainService.getCurrentState();
build() {
Column() {
// 光照强度显示
Row() {
Text('当前光照:')
.fontSize(16)
.margin({ right: 10 });
Text(${this.currentState.lightLevel.toFixed(0)} lux)
.fontSize(16)
.fontWeight(FontWeight.Bold);
.width(‘100%’)
.justifyContent(FlexAlign.Start)
.margin({ bottom: 20 });
// 窗帘位置控制
Column() {
Text('窗帘位置')
.fontSize(16)
.margin({ bottom: 10 });
Slider({
value: this.currentState.position,
min: 0,
max: 100,
step: 1,
style: SliderStyle.OutSet
})
.blockColor('#4CAF50')
.trackColor('#E0E0E0')
.selectedColor('#4CAF50')
.width('80%')
.onChange((value: number) => {
this.setPosition(value);
});
Row() {
Text('0%')
.fontSize(14)
.fontColor('#666666');
Text(${this.currentState.position}%)
.fontSize(18)
.fontWeight(FontWeight.Bold)
.margin({ left: 10, right: 10 });
Text('100%')
.fontSize(14)
.fontColor('#666666');
.width(‘80%’)
.justifyContent(FlexAlign.SpaceBetween);
.width(‘100%’)
.margin({ bottom: 30 });
// 控制模式
Row() {
Text('控制模式:')
.fontSize(16)
.margin({ right: 10 });
Text(this.getModeText(this.currentState.mode))
.fontSize(16)
.fontWeight(FontWeight.Bold)
.fontColor(this.getModeColor(this.currentState.mode))
.onClick(() => {
this.showModeDialog = true;
});
.width(‘100%’)
.justifyContent(FlexAlign.Start)
.margin({ bottom: 20 });
// 快捷控制按钮
Row() {
Button('全开')
.type(ButtonType.Capsule)
.width('25%')
.backgroundColor('#4CAF50')
.fontColor('#FFFFFF')
.onClick(() => {
this.setPosition(100);
});
Button('半开')
.type(ButtonType.Capsule)
.width('25%')
.backgroundColor('#FFC107')
.fontColor('#FFFFFF')
.margin({ left: 10 })
.onClick(() => {
this.setPosition(50);
});
Button('全关')
.type(ButtonType.Capsule)
.width('25%')
.backgroundColor('#F44336')
.fontColor('#FFFFFF')
.margin({ left: 10 })
.onClick(() => {
this.setPosition(0);
});
.width(‘100%’)
.justifyContent(FlexAlign.Center);
.width(‘100%’)
.height('100%')
.padding(20)
// 模式选择对话框
if (this.showModeDialog) {
Dialog.show({
title: '选择控制模式',
content: this.buildModeDialogContent(),
confirm: {
value: '确定',
action: () => {
this.showModeDialog = false;
},
cancel: () => {
this.showModeDialog = false;
});
}
@Builder
private buildModeDialogContent() {
Column() {
RadioGroup({ initial: this.currentState.mode })
.onChange((mode: ‘auto’ ‘manual’
‘timer’) => {
this.setMode(mode);
})
.width(‘100%’)
.margin({ bottom: 20 })
.direction(RadioGroupDirection.Vertical) {
Radio({ value: ‘auto’ })
.fontSize(16)
.margin({ bottom: 10 });
Text(‘自动模式 (根据光照调节)’)
.fontSize(16)
.margin({ left: 10, bottom: 15 });
Radio({ value: 'manual' })
.fontSize(16)
.margin({ bottom: 10 });
Text('手动模式')
.fontSize(16)
.margin({ left: 10, bottom: 15 });
Radio({ value: 'timer' })
.fontSize(16)
.margin({ bottom: 10 });
Text('定时模式')
.fontSize(16)
.margin({ left: 10 });
}
.width('100%')
.padding(10)
private async setPosition(position: number): Promise<void> {
await this.curtainService.setCurtainPosition(position);
this.currentState = await this.curtainService.getCurrentState();
private async setMode(mode: ‘auto’ ‘manual’
‘timer’): Promise<void> {
await this.curtainService.setMode(mode);
this.currentState = await this.curtainService.getCurrentState();
private getModeText(mode: string): string {
switch (mode) {
case 'auto': return '自动模式';
case 'manual': return '手动模式';
case 'timer': return '定时模式';
default: return mode;
}
private getModeColor(mode: string): string {
switch (mode) {
case ‘auto’: return ‘#4CAF50’;
case ‘manual’: return ‘#2196F3’;
case ‘timer’: return ‘#FF9800’;
default: return ‘#000000’;
}
主界面实现
// src/main/ets/pages/CurtainPage.ets
import { CurtainService } from ‘…/service/CurtainService’;
import { CurtainControl } from ‘…/components/CurtainControl’;
@Entry
@Component
struct CurtainPage {
@State activeTab: number = 0;
@State deviceList: string[] = [];
private curtainService = CurtainService.getInstance();
build() {
Column() {
// 标题
Text(‘智能窗帘控制’)
.fontSize(24)
.fontWeight(FontWeight.Bold)
.margin({ bottom: 20 });
// 标签页
Tabs({ barPosition: BarPosition.Start }) {
TabContent() {
// 窗帘控制标签页
CurtainControl()
.tabBar(‘窗帘控制’);
TabContent() {
// 设备管理标签页
this.buildDevicesTab()
.tabBar(‘设备管理’);
TabContent() {
// 设置标签页
this.buildSettingsTab()
.tabBar(‘设置’);
.barWidth(‘100%’)
.barHeight(50)
.width('100%')
.height('80%')
.width(‘100%’)
.height('100%')
.padding(20)
.onAppear(() => {
// 模拟获取设备列表
setTimeout(() => {
this.deviceList = ['客厅窗帘', '卧室窗帘', '阳台窗帘'];
}, 1000);
});
@Builder
private buildDevicesTab() {
Column() {
Text(‘已连接设备’)
.fontSize(18)
.fontWeight(FontWeight.Bold)
.margin({ bottom: 20 });
if (this.deviceList.length > 0) {
List({ space: 15 }) {
ForEach(this.deviceList, (device) => {
ListItem() {
Row() {
Image($r('app.media.ic_curtain'))
.width(40)
.height(40)
.margin({ right: 15 });
Text(device)
.fontSize(16)
.layoutWeight(1);
if (device === '客厅窗帘') {
Text('主设备')
.fontSize(14)
.fontColor('#4CAF50');
}
.width('100%')
.padding(15)
.backgroundColor('#FFFFFF')
.borderRadius(10)
})
.width(‘100%’)
.layoutWeight(1);
else {
Text('没有连接的设备')
.fontSize(16)
.fontColor('#666666')
.margin({ top: 50 });
Button(‘添加设备’)
.type(ButtonType.Capsule)
.width('80%')
.margin({ top: 30 })
.backgroundColor('#2196F3')
.fontColor('#FFFFFF');
.width(‘100%’)
.height('100%')
.padding(10);
@Builder
private buildSettingsTab() {
Column() {
Text(‘自动调节设置’)
.fontSize(18)
.fontWeight(FontWeight.Bold)
.margin({ bottom: 20 });
// 光照阈值设置
Row() {
Text('光线暗阈值:')
.fontSize(16)
.layoutWeight(1);
TextInput({ text: '50' })
.type(InputType.Number)
.width(80)
.textAlign(TextAlign.End);
Text(' lux')
.fontSize(16)
.margin({ left: 5 });
.width(‘100%’)
.margin({ bottom: 15 });
Row() {
Text('光线亮阈值:')
.fontSize(16)
.layoutWeight(1);
TextInput({ text: '1000' })
.type(InputType.Number)
.width(80)
.textAlign(TextAlign.End);
Text(' lux')
.fontSize(16)
.margin({ left: 5 });
.width(‘100%’)
.margin({ bottom: 30 });
// 定时设置
Text('定时设置')
.fontSize(18)
.fontWeight(FontWeight.Bold)
.margin({ bottom: 20 });
Row() {
Text('早晨打开时间:')
.fontSize(16)
.layoutWeight(1);
TimePicker({})
.width(120);
.width(‘100%’)
.margin({ bottom: 15 });
Row() {
Text('晚上关闭时间:')
.fontSize(16)
.layoutWeight(1);
TimePicker({})
.width(120);
.width(‘100%’)
.margin({ bottom: 30 });
Button('保存设置')
.type(ButtonType.Capsule)
.width('80%')
.backgroundColor('#4CAF50')
.fontColor('#FFFFFF');
.width(‘100%’)
.height('100%')
.padding(20);
}
四、与游戏同步技术的结合点
分布式状态同步：借鉴游戏中多玩家状态同步机制，实现窗帘状态的跨设备同步
实时数据处理：类似游戏中的实时数据流，处理传感器数据和控制指令
设备角色分配：类似游戏中的主机/客户端角色，确定主控制设备和从属设备
时间同步机制：确保多设备间的时间戳一致，类似游戏中的时间同步
数据压缩传输：优化控制指令的传输效率，类似游戏中的网络优化
五、关键特性实现
光照检测与自动调节：
private adjustCurtainAuto(): void {
let targetPosition = 50; // 默认位置
if (this.currentState.lightLevel < 50) {
targetPosition = 0;
else if (this.currentState.lightLevel < 200) {
targetPosition = 25;
else if (this.currentState.lightLevel < 1000) {
targetPosition = 50;
else if (this.currentState.lightLevel < 5000) {
targetPosition = 75;
else {
targetPosition = 100;
this.setCurtainPosition(targetPosition);
多模式控制：
public async setMode(mode: 'auto' 'manual'
‘timer’): Promise<void> {
this.currentState.mode = mode;
this.currentState.timestamp = Date.now();
await this.syncState();
设备控制接口：
await this.iotController.setPosition(position);
状态同步机制：
private async syncState(): Promise<void> {
if (this.kvStore) {
await this.kvStore.put('curtain_state', { value: this.currentState });
}
六、性能优化策略
传感器采样间隔：
await this.lightSensor.setInterval(5000); // 5秒采样一次
批量状态更新：
private scheduleSync(): void {
if (this.syncTimer) clearTimeout(this.syncTimer);
this.syncTimer = setTimeout(() => {
this.syncState();
this.syncTimer = null;
}, 2000); // 2秒内多次更新只同步一次
本地缓存优先：
public async getCurrentState(): Promise<CurtainState> {
// 先返回本地缓存
const cachedState = this.currentState;
// 异步从分布式存储获取最新状态
if (this.kvStore) {
this.kvStore.get('curtain_state').then((entry) => {
if (entry?.value && entry.value.timestamp > cachedState.timestamp) {
this.currentState = entry.value;
});
return cachedState;
资源释放管理：
public async destroy(): Promise<void> {
if (this.lightSensor) {
this.lightSensor.off('change');
if (this.iotController) {
await this.iotController.release();
}
七、项目扩展方向
语音控制集成：支持语音指令控制窗帘
场景联动：与其他智能设备联动（如灯光、空调）
能耗统计：记录窗帘运行状态和能耗
安全模式：恶劣天气自动关闭窗帘
远程控制：通过互联网远程控制窗帘
八、总结
本智能窗帘控制系统实现了以下核心功能：
基于环境光照强度的自动窗帘调节
多控制模式（自动/手动/定时）
多设备间的状态同步与控制
直观的用户控制界面
通过借鉴游戏中的多设备同步技术，我们构建了一个实用的智能家居控制系统。该项目展示了HarmonyOS在传感器数据处理和分布式控制方面的强大能力，为开发者提供了智能家居应用开发的参考方案。
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