未来教室：HarmonyOS5.0与HarmonyOS SDK AI赋能多设备协同打造沉浸式AR教学空间 原创

+-------------------------+
| 教学空间AI决策引擎       | ← HarmonyOS SDK AI
+------------+------------+
             | 空间指令
+------------+------------+
| 多设备协同控制中枢        | ← HarmonyOS分布式软总线
+---+-----+----+----+-----+
    |     |    |    |
+---+---+ | +--+--+ | +---+---+
| AR眼镜 | | 平板  | | 智慧屏 | ← 终端设备
+-------+ +-------+ +-------+

import ohos.distributedschedule.interwork.DeviceInfo;
import ohos.distributedschedule.interwork.DeviceManager;
import ohos.distributedschedule.interwork.TaskManager;
import ohos.rpc.RemoteException;

public class ClassroomOrchestrator {
    private static final String TEACHING_GROUP = "classroom_ar_session";
    
    public void startARTeachingSession(Context context, String lessonId) {
        // 创建教学设备组
        createDeviceGroup(lessonId);
        
        // 分配设备角色
        assignDeviceRoles();
        
        // 初始化教学内容同步
        syncEducationalContent(lessonId);
        
        // 启动空间追踪
        startSpatialTracking();
    }
    
    private void createDeviceGroup(String sessionId) {
        List<DeviceInfo> classroomDevices = DeviceManager.getDeviceList(DeviceInfo.FLAG_SUPPORT_AR);
        TaskManager.createDeviceGroup(TEACHING_GROUP + "_" + sessionId, 
                                    classroomDevices,
                                    GroupType.CLASSROOM_AR_GROUP);
    }
    
    private void assignDeviceRoles() {
        for (DeviceInfo device : getGroupDevices()) {
            String role = determineDeviceRole(device);
            TaskManager.setDeviceRole(device.getDeviceId(), role);
            
            // 根据角色部署不同组件
            deployComponentsBasedOnRole(role, device);
        }
    }
    
    private String determineDeviceRole(DeviceInfo device) {
        // 使用AI分析设备特性
        DeviceCapability capability = DeviceProfiler.getCapability(device);
        
        if (capability.hasARDisplay()) {
            return "AR_RENDERER";
        } else if (capability.getComputePower() > 80) {
            return "CONTENT_SERVER";
        } else if (capability.getDisplaySize() > 10) {
            return "CONTENT_DISPLAY";
        } else {
            return "CONTENT_CONTROLLER";
        }
    }
    
    private void deployComponentsBasedOnRole(String role, DeviceInfo device) {
        switch(role) {
            case "AR_RENDERER":
                deployARComponents(device);
                break;
            case "CONTENT_SERVER":
                deployAIEngine(device);
                break;
            case "CONTENT_DISPLAY":
                deployDisplayAdapter(device);
                break;
            case "CONTENT_CONTROLLER":
                deployInteractionController(device);
                break;
        }
    }
}

import ohos.location.Location;
import ohos.sensors.bean.SensorEvent;
import ohos.agp.render3D.Scene;
import ohos.agp.render3D.scene.Node;
import ohos.agp.render3D.views.RenderView;
import ohos.arkui.arengine.ARController;
import ohos.arkui.arengine.ARFrame;
import ohos.arkui.arengine.ARSession;

public class EducationalARSpace {
    private ARSession arSession;
    private Scene educationalScene;
    
    public void initARSpace(Context context) {
        // 初始化AR核心
        arSession = ARController.createSession(context, ARType.SPACE_MAPPING);
        educationalScene = new Scene(context);
        
        // 配置空间映射参数
        ARConfig config = new ARConfig.Builder()
                .setTrackingMode(ARConfig.TRACKING_SPACE)
                .enableCloudAnchor(true)
                .setSceneUnderstandingLevel(ARConfig.SCENE_UNDERSTANDING_FULL)
                .build();
        
        arSession.configure(config);
        
        // 启动空间映射
        arSession.start(new ARSession.Callback() {
            @Override
            public void onFrame(ARFrame frame) {
                updateSceneBasedOnEnvironment(frame);
            }
        });
    }
    
    private void updateSceneBasedOnEnvironment(ARFrame frame) {
        // 获取环境数据
        SpaceInfo spaceInfo = frame.getSpaceInfo();
        
        // 更新场景布局
        educationalScene.updateLayout(spaceInfo);
        
        // 放置教学模型
        placeEducationalObjects(spaceInfo);
        
        // AI驱动内容适应
        adaptContentBasedOnTeachingProgress();
    }
    
    private void placeEducationalObjects(SpaceInfo spaceInfo) {
        // 找到适合放置模型的位置
        AnchorPoint placePoint = spaceInfo.findBestPlacePoint();
        
        // 创建模型加载器
        ModelLoader loader = new EducationalModelLoader();
        
        // 加载当前教学模型
        Node modelNode = loader.loadModel(getCurrentTeachingModel());
        modelNode.setPosition(placePoint.getPosition());
        
        // 添加到场景
        educationalScene.addNode(modelNode);
        
        // 添加教学注释
        addEducationalAnnotations(modelNode);
    }
    
    private void addEducationalAnnotations(Node modelNode) {
        // 使用HarmonyOS AI生成教学内容
        String explanation = EducationalAI.generateExplanation(
                modelNode.getModelId(), 
                getStudentLevel()
        );
        
        // 创建AR教学标注
        ARAnnotation annotation = new ARAnnotation.Builder()
                .setContent(explanation)
                .setPosition(modelNode.getPosition())
                .setVisibilityMode(ARAnnotation.FOLLOW_MODEL)
                .build();
        
        educationalScene.addAnnotation(annotation);
    }
}

import ohos.ai.education.assistant.EducationalAIEngine;
import ohos.ai.education.assistant.TeachingStrategy;
import ohos.ai.education.model.StudentProfile;

public class TeachingAIOrchestrator {
    private EducationalAIEngine aiEngine;
    
    public void initTeachingAI(Context context) {
        aiEngine = new EducationalAIEngine.Builder(context)
                .setModelPackage("edu_ai_suite")
                .setTeachingDomain("STEM")
                .setMaxLatency(100) // 毫秒级响应
                .build();
        
        // 加载学生数据
        loadStudentProfiles();
    }
    
    public void handleTeachingScenario(String scenarioType) {
        TeachingStrategy strategy = aiEngine.decideStrategy(scenarioType, 
                                   getClassLearningProgress(), 
                                   getTeachingGoals());
        
        executeTeachingStrategy(strategy);
    }
    
    private void executeTeachingStrategy(TeachingStrategy strategy) {
        // 根据AI决策协调教学资源
        switch(strategy.getStrategyType()) {
            case VISUALIZATION_HEAVY:
                enhanceVisualization(strategy.getFocusConcepts());
                break;
            case HANDS_ON_EXPERIMENT:
                setupLabEnvironment(strategy.getRequiredEquipment());
                break;
            case COLLABORATIVE_LEARNING:
                formStudentGroups(strategy.getGroupingLogic());
                break;
        }
        
        // 更新多设备内容
        distributeContent(strategy.getContentAdjustments());
        
        // 生成教师提示
        generateTeacherPrompt(strategy);
    }
    
    private void generateTeacherPrompt(TeachingStrategy strategy) {
        TeacherPromptGenerator generator = new TeacherPromptGenerator();
        String prompt = generator.generate(strategy, 
                                  getClassAttentionLevel(), 
                                  getCommonMisconceptions());
        
        // 通过智能手表传递给教师
        sendToTeacherDevice(prompt);
    }
}

import ohos.arkui.ar3d.EarthModel;
import ohos.arkui.ar3d.GeographyRenderer;
import ohos.arkui.ar3d.WeatherSystem;

public class GeographyARClass {
    private EarthModel earthModel;
    private GeographyRenderer renderer;
    
    public void createWorldEnvironment(Context context) {
        // 创建真实比例地球模型
        earthModel = new EarthModel(context)
                .setScale(1.0f) // 真实比例
                .enableDetailTextures(true);
        
        // 添加天气模拟系统
        WeatherSystem weatherSystem = new WeatherSystem();
        weatherSystem.setGlobalWeather(WeatherSystem.WEATHER_REAL_TIME);
        
        // 连接真实气象数据
        connectToWeatherAPI();
        
        // 创建交互式渲染器
        renderer = new GeographyRenderer.Builder(context)
                .setEarthModel(earthModel)
                .setWeatherSystem(weatherSystem)
                .setInteractionMode(GeographyRenderer.GESTURE_FREE_MOVE)
                .build();
        
        // 添加教学图层
        addEducationalLayers();
    }
    
    private void addEducationalLayers() {
        // 地形地貌图层
        renderer.addLayer(new TopographyLayer());
        
        // 气候区域图层
        renderer.addLayer(new ClimateZoneLayer());
        
        // 生态系统图层
        renderer.addLayer(new EcosystemLayer());
        
        // 人口分布图层
        renderer.addLayer(new PopulationLayer());
    }
    
    // 动态创建教学任务
    public void createTeachingTask(String topic) {
        switch(topic) {
            case "plate_tectonics":
                createPlateMovementSimulation();
                break;
            case "ocean_currents":
                visualizeOceanCurrents();
                break;
            case "climate_change":
                showClimateChangeTimelapse();
                break;
        }
    }
    
    private void visualizeOceanCurrents() {
        OceanCurrentSimulation simulation = new OceanCurrentSimulation();
        
        // 设置模拟参数
        simulation.setTimeScale(100000); // 10万倍速
        simulation.setTemperatureVisualization(true);
        
        // 启动海洋流动模拟
        renderer.startSimulation(simulation);
        
        // 添加AI教学助手
        addAITeachingAssistant("oceanography_expert");
    }
}

import ohos.history.reconstruction.TimeSceneBuilder;
import ohos.history.reconstruction.HistoricalCharacter;
import ohos.history.reconstruction.CulturalContextRenderer;

public class HistoryReconstructionSystem {
    private String currentEra;
    private HistoricalScene activeScene;
    
    public void reconstructHistoricalPeriod(String eraId) {
        // 获取历史时期数据
        HistoricalEra era = HistoryDatabase.getEra(eraId);
        
        // 构建场景
        activeScene = TimeSceneBuilder.build(era);
        
        // 添加关键历史人物
        addHistoricalFigures(era.getKeyFigures());
        
        // 设置文化背景
        setCulturalContext(era.getCulturalContext());
        
        // 生成背景音效
        generateAmbientSounds();
    }
    
    private void addHistoricalFigures(List<String> figureIds) {
        HistoricalCharacterLoader loader = new HistoricalCharacterLoader();
        
        for (String figureId : figureIds) {
            HistoricalCharacter character = loader.loadCharacter(figureId);
            
            // 使用AI驱动的行为引擎
            character.setBehaviorEngine(new HistoricalBehaviorAI());
            
            // 添加到场景
            activeScene.addCharacter(character);
        }
    }
    
    // 启动历史事件重演
    public void enactHistoricalEvent(String eventId) {
        HistoricalEvent event = HistoryDatabase.getEvent(eventId);
        
        // 配置事件参数
        event.setTimeScale(1.0); // 实时
        event.setViewpoint(HistoricalEvent.VIEWPOINT_OMNISCIENT);
        
        // 准备参与者
        assignParticipantRoles();
        
        // 开始重演
        event.startEnactment(new EventCallback() {
            @Override
            public void onEventMilestone(String milestone) {
                // AI教学助手插入背景知识
                addHistoricalContext(milestone);
            }
        });
    }
}

import ohos.ai.interaction.MultimodalInput;
import ohos.ai.interaction.InputClassifier;
import ohos.ai.interaction.FusionEngine;

public class ClassInteractionSystem {
    private MultimodalInput multimodalInput;
    private FusionEngine fusionEngine;
    
    public void initInteractionSystem(Context context) {
        multimodalInput = new MultimodalInput.Builder(context)
                .enableVoice(true)
                .enableGesture(true)
                .enableGaze(true)
                .setGazeSensitivity(0.7f)
                .build();
        
        InputClassifier classifier = new InputClassifier.Builder()
                .setMode(InputClassifier.MODE_TEACHING)
                .setTeachingSubject(getCurrentSubject())
                .build();
        
        fusionEngine = new FusionEngine(classifier);
        
        // 注册输入处理器
        registerInputProcessors();
    }
    
    private void registerInputProcessors() {
        multimodalInput.registerVoiceProcessor(this::processVoiceCommand);
        multimodalInput.registerGestureProcessor(this::processGesture);
        multimodalInput.registerGazeProcessor(this::processEyeTracking);
    }
    
    // 智能命令路由
    private void routeCommand(InteractionCommand command) {
        switch(command.getType()) {
            case CONTENT_NAVIGATION:
                handleNavigation(command);
                break;
            case CONTENT_ZOOM:
                handleContentScaling(command);
                break;
            case ANNOTATION_REQUEST:
                generateAnnotation(command);
                break;
            case SCENE_TRANSITION:
                transitionScene(command);
                break;
        }
    }
    
    // AI增强手势理解
    private void processGesture(GestureEvent event) {
        GestureInterpretation interpretation = fusionEngine.interpretGesture(event);
        
        if (interpretation.getConfidence() > 0.8) {
            routeCommand(interpretation.getCommand());
        } else {
            // 请求更多上下文
            requestContextForGesture(event);
        }
    }
}

import ohos.ai.rendering.AdaptiveRenderer;
import ohos.ai.rendering.DeviceProfile;
import ohos.ai.rendering.QualityScaler;

public class TeachingSceneRenderer {
    private AdaptiveRenderer renderer;
    
    public void initRenderer(Context context, Scene scene) {
        // 获取设备能力配置
        DeviceProfile profile = DeviceProfiler.getProfile();
        
        // 创建适应性渲染器
        renderer = new AdaptiveRenderer.Builder(context)
                .setTargetScene(scene)
                .setDeviceProfile(profile)
                .setMinFrameRate(30) // 教学场景最低帧率
                .enableFallbackMechanism(true)
                .build();
        
        // 设置教学场景优化策略
        setTeachingOptimizations();
    }
    
    private void setTeachingOptimizations() {
        // 教育内容优先加载策略
        renderer.setPrioritizationStrategy(new TeachingContentPrioritizer());
        
        // 教学焦点区域优化
        renderer.setFocusDetection(new TeachingFocusDetector());
        
        // 动态质量调整
        renderer.setQualityAdapter(new QualityScaler() {
            @Override
            public int adjustQuality(int currentQuality, PerformanceMetrics metrics) {
                if (isCriticalTeachingMoment()) {
                    return QUALITY_HIGH; // 关键时刻保证高质量
                } else {
                    return adaptBasedOnBatteryAndPerformance(metrics);
                }
            }
        });
    }
    
    private int adaptBasedOnBatteryAndPerformance(PerformanceMetrics metrics) {
        // 动态权衡性能和画质
        float frameRate = metrics.getFrameRate();
        float batteryLevel = metrics.getBatteryLevel();
        
        if (batteryLevel < 0.2) {
            return QUALITY_LOW;
        } else if (frameRate < 25) {
            return QUALITY_MEDIUM;
        } else {
            return QUALITY_HIGH;
        }
    }
}

import ohos.bci.neuro.EducationalBCI;
import ohos.bci.neuro.NeuroFeedback;

public class BrainAwareTeachingSystem {
    private EducationalBCI bciInterface;
    
    public void startCognitiveTracking() {
        bciInterface = new EducationalBCI();
        bciInterface.connect();
        
        // 注册认知状态监听
        bciInterface.registerStateListener(state -> {
            handleCognitiveStateChange(state);
        });
    }
    
    private void handleCognitiveStateChange(CognitiveState state) {
        switch(state.getFocusLevel()) {
            case HIGH_FOCUS:
                advanceTeachingPace(); // 加速教学节奏
                break;
            case MEDIUM_FOCUS:
                maintainCurrentPace();
                break;
            case LOW_FOCUS:
                triggerEngagementActivity(); // 激活参与活动
                break;
        }
        
        // 处理理解障碍
        if (state.hasConfusionFlag()) {
            addressConfusionPoint(state.getConfusionMetric());
        }
    }
    
    private void addressConfusionPoint(float confusionScore) {
        // AI自动定位理解瓶颈
        String confusedConcept = locateConfusedConcept(confusionScore);
        
        // 生成个性化解释
        String explanation = generatePersonalizedExplanation(confusedConcept);
        
        // 通过AR展示重点解释
        showFocusExplanation(explanation);
    }
}

import ohos.education.metadata.TeachingSpaceMetadata;
import ohos.education.metadata.LearningAnalyticsRecorder;

public class EducationalMetadataEngine {
    private TeachingSpaceMetadata metadata;
    private LearningAnalyticsRecorder recorder;
    
    public void initMetadataSystem(String spaceId) {
        metadata = TeachingSpaceManager.getMetadata(spaceId);
        recorder = new LearningAnalyticsRecorder();
        
        // 配置数据采集
        configureDataCollection();
        
        // 启动实时分析
        startRealTimeAnalytics();
    }
    
    private void configureDataCollection() {
        // 空间交互数据
        recorder.trackInteraction(new SpaceInteractionTracker());
        
        // 多设备协作数据
        recorder.trackCollaboration(new DeviceCollaborationTracker());
        
        // 学生认知表现数据
        recorder.trackPerformance(new CognitivePerformanceTracker());
    }
    
    public void generateSpaceReport() {
        // AI生成教学空间分析报告
        SpaceAnalysisReport report = new SpaceReportBuilder()
                .setMetadata(metadata)
                .setAnalyticsData(recorder.getData())
                .build();
        
        // 优化建议生成
        List<String> optimizations = report.generateOptimizations();
        
        // 自动应用空间优化
        applySpaceOptimizations(optimizations);
    }
}