鸿蒙跨设备呼吸训练系统：分布式语音引导与多终端协同训练方案原创

进修的泡芙

发布于 2025-6-22 17:03

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鸿蒙跨设备呼吸训练系统：分布式语音引导与多终端协同训练方案

一、系统架构设计

!https://example.com/harmonyos-breathing-arch.png

采用三层架构：
感知层：多设备麦克风阵列采集呼吸音频

处理层：分布式呼吸模式分析与语音合成

展示层：跨终端呼吸波形可视化与训练数据同步

二、核心模块实现
呼吸音频分析模块

// BreathAnalyzer.ts
import audio from ‘@ohos.multimedia.audio’;
import voiceAnalysis from ‘@ohos.ai.voiceAnalysis’;

interface BreathCycle {
startTime: number;
endTime: number;
type: ‘inhale’ ‘exhale’
‘hold’;
volume: number;
duration: number;
export class BreathAnalyzer {

private audioCapturer?: audio.AudioCapturer;
private voiceAnalyzer: voiceAnalysis.VoiceAnalyzer;
private readonly SAMPLE_RATE = 16000;

async init() {
this.voiceAnalyzer = await voiceAnalysis.createAnalyzer({
model: ‘breath_pattern’,
sampleRate: this.SAMPLE_RATE
});

const capturerConfig = {
  sampleRate: audio.AudioSamplingRate.SAMPLE_RATE_16000,
  channelCount: 1,
  format: audio.AudioFormat.FORMAT_PCM_16BIT,
  encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW
};

this.audioCapturer = await audio.createCapturer(capturerConfig);

async startMonitoring(): Promise<AsyncIterable<BreathCycle>> {

this.audioCapturer?.start();

return {
  [Symbol.asyncIterator]: async function* () {
    while (this.isMonitoring) {
      const audioData = await this.audioCapturer?.read();
      if (audioData) {
        const result = await this.voiceAnalyzer.analyze(audioData);
        yield this.parseBreathCycle(result);

}

  }.bind(this)
};

private parseBreathCycle(result: voiceAnalysis.AnalysisResult): BreathCycle {

return {
  startTime: Date.now() - result.duration,
  endTime: Date.now(),
  type: result.type as BreathCycle['type'],
  volume: result.amplitude,
  duration: result.duration
};

// 其他方法…

分布式训练管理

// TrainingManager.ts
import distributedData from ‘@ohos.data.distributedData’;

interface TrainingSession {
sessionId: string;
participants: string[];
currentPattern: BreathPattern;
progress: Record<string, ParticipantProgress>;
interface BreathPattern {

inhale: number; // 吸气时长(秒)
exhale: number; // 呼气时长
hold?: number; // 屏息时长
export class TrainingManager {

private kvManager: distributedData.KVManager;
private kvStore: distributedData.KVStore;

async init() {
const context = getContext(this);
this.kvManager = distributedData.createKVManager({ context });

const options = {
  createIfMissing: true,
  encrypt: true,
  autoSync: true,
  kvStoreType: distributedData.KVStoreType.SINGLE_VERSION
};

this.kvStore = await this.kvManager.getKVStore('breath_training', options);
this.setupListeners();

async createSession(pattern: BreathPattern, devices: string[]): Promise<string> {

const sessionId = session_${Date.now()};
const session: TrainingSession = {
  sessionId,
  participants: devices,
  currentPattern: pattern,
  progress: {}
};

await this.kvStore.put(sessionId, session);
return sessionId;

async updateProgress(sessionId: string, deviceId: string, cycles: BreathCycle[]) {

const session = await this.kvStore.get(sessionId);
if (!session) return;

session.progress[deviceId] = {
  lastUpdate: Date.now(),
  cycles: [...(session.progress[deviceId]?.cycles || []), ...cycles]
};

await this.kvStore.put(sessionId, session);

// 其他方法…

语音引导引擎

// VoiceGuide.ts
import tts from ‘@ohos.multimedia.tts’;

export class VoiceGuide {
private ttsEngine?: tts.TtsEngine;
private readonly GUIDES = {
inhale: [‘吸气’, ‘深深吸气’, ‘用鼻子吸气’],
exhale: [‘呼气’, ‘缓慢呼气’, ‘用嘴呼气’],
hold: [‘屏住呼吸’, ‘保持’]
};

async init() {
this.ttsEngine = await tts.createEngine();
await this.ttsEngine.init({
volume: 0.8,
speed: 1.0
});
async guideBreathCycle(type: BreathCycle[‘type’], remaining: number) {

const phrases = this.GUIDES[type];
const phrase = phrases[Math.floor(Math.random() * phrases.length)];
await this.ttsEngine.speak({phrase}...{remaining}秒);

async guidePattern(pattern: BreathPattern) {

await this.ttsEngine.speak(
  请跟随节奏：吸气{pattern.inhale}秒，{pattern.hold ? 屏息{pattern.hold}秒， : ''}呼气{pattern.exhale}秒
);

}

三、主页面实现（ArkUI）

// BreathingApp.ets
import { BreathAnalyzer } from ‘./BreathAnalyzer’;
import { TrainingManager } from ‘./TrainingManager’;
import { VoiceGuide } from ‘./VoiceGuide’;

@Entry
@Component
struct BreathingApp {
@State currentCycle?: BreathCycle;
@State session?: TrainingSession;
@State pattern: BreathPattern = { inhale: 4, exhale: 6 };

private analyzer = new BreathAnalyzer();
private manager = new TrainingManager();
private guide = new VoiceGuide();
private monitoring = false;

async aboutToAppear() {
await this.analyzer.init();
await this.manager.init();
await this.guide.init();
async startTraining() {

this.monitoring = true;
const sessionId = await this.manager.createSession(this.pattern, ['device1', 'device2']);
this.session = await this.manager.getSession(sessionId);

// 开始语音引导
this.guide.guidePattern(this.pattern);

// 开始呼吸监测
for await (const cycle of this.analyzer.startMonitoring()) {
  if (!this.monitoring) break;
  
  this.currentCycle = cycle;
  await this.manager.updateProgress(sessionId, 'local_device', [cycle]);
  
  // 实时语音提示
  const remaining = this.calculateRemainingTime(cycle);
  if (remaining > 0) {
    this.guide.guideBreathCycle(cycle.type, remaining);

}

build() {

Column() {
  // 呼吸波形可视化
  BreathVisualizer({
    cycle: this.currentCycle,
    pattern: this.pattern
  })
  
  // 训练模式选择
  PatternSelector({
    current: this.pattern,
    onSelect: (pattern) => { this.pattern = pattern; }
  })
  
  // 控制按钮
  Button(this.monitoring ? '结束训练' : '开始训练')
    .onClick(() => this.monitoring ? this.stopTraining() : this.startTraining())

}

// 其他方法…
@Component

struct BreathVisualizer {
@Prop cycle?: BreathCycle;
@Prop pattern: BreathPattern;

build() {
Stack() {
// 背景节奏指示器
RhythmGuide(this.pattern)

  // 实时呼吸波形
  if (this.cycle) {
    BreathWave(this.cycle)

}

.height('60%')
.width('100%')

}

@Component
struct PatternSelector {
@Prop current: BreathPattern;
@Param onSelect: (pattern: BreathPattern) => void;

private readonly PRESETS = [
label: ‘4-7-8呼吸’, pattern: { inhale: 4, hold: 7, exhale: 8 } },

label: ‘平衡呼吸’, pattern: { inhale: 4, exhale: 4 } },

label: ‘放松呼吸’, pattern: { inhale: 4, exhale: 6 } }

];

build() {
Row() {
ForEach(this.PRESETS, (preset) => {
Button(preset.label)
.stateEffect(this.isActive(preset.pattern))
.onClick(() => this.onSelect(preset.pattern))
})
}

private isActive(pattern: BreathPattern): ButtonStateEffect {
return this.current.inhale === pattern.inhale &&
this.current.exhale === pattern.exhale &&
this.current.hold === pattern.hold ?
ButtonStateEffect.Active : ButtonStateEffect.Normal;
}

四、跨设备协同关键实现
呼吸节奏同步

// 在TrainingManager中添加
async syncBreathPattern(sessionId: string, pattern: BreathPattern) {
const session = await this.kvStore.get(sessionId);
if (!session) return;

session.currentPattern = pattern;
await this.kvStore.put(sessionId, session);

// 通知所有设备
await this.broadcastUpdate(sessionId, {
type: ‘pattern_change’,
pattern
});
private async broadcastUpdate(sessionId: string, message: any) {

const session = await this.kvStore.get(sessionId);
if (!session) return;

await Promise.all(session.participants.map(deviceId =>
this.sendToDevice(deviceId, message)
));

多设备数据聚合

// 在TrainingManager中添加
async getGroupProgress(sessionId: string): Promise<GroupProgress> {
const session = await this.kvStore.get(sessionId);
if (!session) return { averageInhale: 0, averageExhale: 0 };

let totalInhale = 0, totalExhale = 0, count = 0;

Object.values(session.progress).forEach(progress => {
progress.cycles.forEach(cycle => {
if (cycle.type === ‘inhale’) totalInhale += cycle.duration;
if (cycle.type === ‘exhale’) totalExhale += cycle.duration;
count++;
});
});

return {
averageInhale: totalInhale / (count / 2),
averageExhale: totalExhale / (count / 2),
participantCount: Object.keys(session.progress).length
};

设备间语音协作

// CollaborativeGuide.ts
export class CollaborativeGuide {
private sessions = new Map<string, VoiceGuide>();

async addDevice(sessionId: string, deviceId: string) {
const guide = new VoiceGuide();
await guide.init();
this.sessions.set({sessionId}_{deviceId}, guide);
async guideDevice(sessionId: string, deviceId: string, message: string) {

const guide = this.sessions.get({sessionId}_{deviceId});
if (guide) {
  await guide.speak(message);

}

// 其他方法…

五、性能优化方案
音频流处理优化

// 在BreathAnalyzer中添加
private audioBuffer: Int16Array = new Int16Array(0);
private readonly CHUNK_SIZE = 1024;

private async processAudioChunk(): Promise<BreathCycle | undefined> {
if (this.audioBuffer.length < this.CHUNK_SIZE * 4) return;

const chunk = this.audioBuffer.slice(0, this.CHUNK_SIZE);
this.audioBuffer = this.audioBuffer.slice(this.CHUNK_SIZE);

const result = await this.voiceAnalyzer.analyze(chunk);
return this.parseBreathCycle(result);

分布式数据压缩

// 在TrainingManager中添加
private compressProgress(progress: ParticipantProgress): CompressedProgress {
return {
t: progress.lastUpdate,
c: progress.cycles.map(c => ({
s: c.startTime,
e: c.endTime,
y: c.type[0], // ‘i’‘e’
‘h’
v: Math.round(c.volume * 100),
d: Math.round(c.duration * 10) / 10
}))
};

本地缓存策略

const sessionCache = new Map<string, TrainingSession>();

async getCachedSession(sessionId: string): Promise<TrainingSession | undefined> {
if (sessionCache.has(sessionId)) {
return sessionCache.get(sessionId);
const session = await this.kvStore.get(sessionId);

if (session) {
sessionCache.set(sessionId, session);
return session;

六、应用场景扩展
冥想辅助模式

class MeditationMode {
async startMeditation(duration: number) {
// 结合呼吸训练的冥想引导
}

运动恢复训练

class RecoveryTraining {
async postWorkoutCooldown() {
// 运动后恢复呼吸训练
}

睡眠引导模式

class SleepGuide {
async prepareForSleep() {
// 睡前呼吸放松训练
}

医疗康复训练

class Rehabilitation {
async pulmonaryExercise() {
// 肺部康复呼吸训练
}

本系统充分利用HarmonyOS分布式能力，实现了：
多设备呼吸同步：跨终端实时节奏协调

智能语音协作：设备间分工语音引导

集体训练分析：综合多用户数据优化训练方案