HarmonyOS 6(API 23)实战:基于HMAF的「星图罗盘」——PC端AI智能体天文观测与深空探索协作平台

文章目录

    • 每日一句正能量
    • 一、前言:当智能体仰望"星辰大海"
    • 二、系统架构设计
      • [2.1 技术架构全景](#2.1 技术架构全景)
    • 三、核心组件实战
      • [3.1 天文数据模型(AstronomyDataModel.ets)](#3.1 天文数据模型(AstronomyDataModel.ets))
      • [3.2 实时星图渲染引擎(StarMapRenderer.ets)](#3.2 实时星图渲染引擎(StarMapRenderer.ets))
      • [3.3 深空目标智能识别(DeepSpaceRecognizer.ets)](#3.3 深空目标智能识别(DeepSpaceRecognizer.ets))
      • [3.4 多设备协同观测(MultiDeviceObservation.ets)](#3.4 多设备协同观测(MultiDeviceObservation.ets))
      • [3.5 悬浮观测导航(ObservationFloatNav.ets)](#3.5 悬浮观测导航(ObservationFloatNav.ets))
    • 四、沉浸光感与观测时段的协同设计
      • [4.1 观测时段光效映射](#4.1 观测时段光效映射)
      • [4.2 悬浮导航观测状态徽章](#4.2 悬浮导航观测状态徽章)
    • 五、关键技术总结
      • [5.1 天文计算引擎开发清单](#5.1 天文计算引擎开发清单)
      • [5.2 深空目标识别开发清单](#5.2 深空目标识别开发清单)
      • [5.3 多设备协同观测开发清单](#5.3 多设备协同观测开发清单)
      • [5.4 沉浸光感实现清单](#5.4 沉浸光感实现清单)
    • 六、调试与性能优化建议
    • 七、结语

每日一句正能量

守住隐私的边界,就是守住人与人之间最舒服的相处模式。

再亲密的关系,也需要各自的角落。不追问、不越界、不把自己的事强加给对方,反而能让彼此更轻松地长久相处。

把有限的精力和心力,真正投注在对自己重要的事情上。


一、前言:当智能体仰望"星辰大海"

2026年,天文观测与深空探索正经历AI驱动的革命性变革。从詹姆斯·韦伯太空望远镜(JWST)的深空影像到盖亚(Gaia)星表的十亿恒星数据,从引力波探测到暗物质分布测绘,天文数据的爆炸式增长对智能分析提出了前所未有的挑战。2026年2月,我国科学家发布"极致深空图"------基于AI模型的天文观测成果,刷新了深空探测极限。

然而,当前天文观测平台面临的核心矛盾是:数据海量但分析工具割裂 ------星图渲染、天体识别、光谱分析、轨道计算等工具分散在不同平台,缺乏统一的智能编排与协作能力。HarmonyOS 6(API 23)的HMAF(HarmonyOS Multi-Agent Framework)框架,结合**悬浮导航(Float Navigation)沉浸光感(Immersive Light Effects)**特性,为PC端天文观测与深空探索带来了"星图即氛围、观测即光效"的全新交互范式。

本文将实战构建「星图罗盘」------一个基于实时星图渲染、深空目标智能识别、多设备协同观测、AI天体物理分析的PC端智能体天文观测协作平台。

本文核心亮点

  • 实时星图渲染引擎:基于WebGL的十亿恒星实时渲染,支持ICRS坐标系转换与星历表计算
  • 深空目标智能识别:基于端侧大模型的天体识别与分类,支持星系/星云/星团/超新星等
  • 多设备协同观测:基于分布式软总线的望远镜阵列协同,实现多机位同步观测
  • AI天体物理分析:基于光谱分析、光变曲线、轨道力学的智能体自动分析
  • 悬浮观测导航:底部悬浮导航栏实时显示观测目标、跟踪状态、曝光进度
  • 沉浸光感星空氛围:根据观测时段(黄昏/深夜/黎明)动态切换环境光色与星空密度
  • HMAF天文智能体集群:9大天文Agent协同完成星图编排、目标识别、观测调度、天体分析

二、系统架构设计

2.1 技术架构全景

「星图罗盘」采用五层架构设计,从系统能力层到应用层逐层构建天文观测能力:

系统能力层:依托HarmonyOS 6的悬浮导航、沉浸光感、多窗口管理、安全区扩展、ArkUI渲染、分布式能力、NPU加速七大系统能力。

深空数据层:星表数据(Gaia/SDSS)、深空影像(HST/JWST)、光谱数据(SDSS/2dF)、轨道数据(NASA/JPL)、观测日志数据库、分布式软总线(DSoftBus)、天文AI模型库。

天文计算引擎层:星图渲染引擎(WebGL)、天体坐标计算(ICRS)、星历表计算(JPL)、轨道力学模拟、光谱分析算法、光变曲线分析、NPU加速天文计算。

HMAF框架层:9大天文Agent------星图编排Agent、目标识别Agent、观测调度Agent、天体分析Agent、设备协同Agent、星历计算Agent、光谱分析Agent、意图引擎(Intents Kit)、工作流引擎(Workflow)。

应用层:实时星图渲染引擎、深空目标智能识别、天文观测任务编排、AI天体物理分析、多设备协同观测、星历计算与预测、光谱分析与分类、天文数据资产管理、观测日志与回溯。


三、核心组件实战

3.1 天文数据模型(AstronomyDataModel.ets)

首先定义天文观测的核心数据模型,这是整个星图系统的数据基石:

typescript 复制代码
// entry/src/main/ets/models/AstronomyDataModel.ets

// 天体类型枚举
export enum CelestialType {
  STAR = 'star',               // 恒星
  GALAXY = 'galaxy',           // 星系
  NEBULA = 'nebula',           // 星云
  STAR_CLUSTER = 'star_cluster', // 星团
  SUPERNOVA = 'supernova',     // 超新星
  PLANET = 'planet',           // 行星
  ASTEROID = 'asteroid',       // 小行星
  COMET = 'comet',             // 彗星
  PULSAR = 'pulsar',           // 脉冲星
  BLACK_HOLE = 'black_hole',   // 黑洞
  QUASAR = 'quasar',           // 类星体
  DWARF_PLANET = 'dwarf_planet' // 矮行星
}

// 光谱类型枚举
export enum SpectralType {
  O = 'O', B = 'B', A = 'A', F = 'F', 
  G = 'G', K = 'K', M = 'M', L = 'L', T = 'T', Y = 'Y'
}

// 坐标系类型
export enum CoordinateSystem {
  ICRS = 'icrs',              // 国际天球参考系
  J2000 = 'j2000',            // J2000历元
  GALACTIC = 'galactic',      // 银道坐标系
  HORIZONTAL = 'horizontal',   // 水平坐标系(高度角/方位角)
  ECLIPTIC = 'ecliptic'       // 黄道坐标系
}

// 天体对象
export interface CelestialObject {
  id: string;
  name: string;
  type: CelestialType;
  coordinates: {
    ra: number;              // 赤经(度)
    dec: number;             // 赤纬(度)
    distance?: number;       // 距离(光年)
    parallax?: number;       // 视差(毫角秒)
    properMotion?: {         // 自行
      ra: number;            // 赤经自行(mas/yr)
      dec: number;           // 赤纬自行(mas/yr)
    };
  };
  magnitude: {               // 星等
    apparent: number;         // 视星等
    absolute?: number;       // 绝对星等
    bolometric?: number;     // 热星等
  };
  spectralType?: SpectralType; // 光谱类型
  temperature?: number;        // 表面温度(K)
  radius?: number;           // 半径(太阳半径)
  mass?: number;             // 质量(太阳质量)
  luminosity?: number;       // 光度(太阳光度)
  metallicity?: number;      // 金属丰度 [Fe/H]
  age?: number;              // 年龄(十亿年)
  variability?: {             // 光变特性
    type: 'pulsating' | 'eclipsing' | 'eruptive' | 'rotating' | 'cataclysmic';
    period?: number;         // 周期(天)
    amplitude?: number;      // 振幅(星等)
  };
  discoveryInfo?: {
    date: string;
    discoverer: string;
    method: string;
    telescope: string;
  };
  catalogData?: {
    hipparcos?: number;      // Hipparcos编号
    tycho?: string;          // Tycho编号
    gaia?: string;           // Gaia DR3编号
    sdss?: string;           // SDSS编号
    simbad?: string;          // SIMBAD标识符
  };
  metadata: {
    dataSource: string;
    lastUpdated: number;
    confidence: number;
    tags: string[];
  };
}

// 光谱数据
export interface SpectrumData {
  objectId: string;
  wavelength: number[];       // 波长(nm)
  flux: number[];            // 流量(erg/s/cm²/Å)
  fluxError?: number[];      // 流量误差
  resolution: number;        // 光谱分辨率 R = λ/Δλ
  observationDate: string;
  telescope: string;
  instrument: string;
  exposureTime: number;      // 曝光时间(秒)
  snr: number;               // 信噪比
  classification: {
    spectralType: SpectralType;
    confidence: number;
    redshift?: number;        // 红移
    radialVelocity?: number;   // 径向速度(km/s)
  };
  lines: SpectralLine[];     // 谱线识别
}

// 谱线
export interface SpectralLine {
  wavelength: number;        // 实验室波长(nm)
  observedWavelength: number; // 观测波长(nm)
  element: string;            // 元素
  ionization: number;         // 电离态
  equivalentWidth: number;   // 等值宽度(Å)
  lineStrength: number;       // 线强
  isEmission: boolean;        // 是否为发射线
}

// 观测任务
export interface ObservationTask {
  id: string;
  name: string;
  target: CelestialObject;
  schedule: {
    startTime: number;        // 开始时间(Unix时间戳)
    endTime: number;          // 结束时间
    priority: number;         // 优先级 1-10
    minAltitude: number;      // 最小高度角(度)
    maxMoonPhase?: number;    // 最大月相(0-1)
    weatherConstraint?: string; // 天气约束
  };
  instrument: {
    telescope: string;
    camera: string;
    filter: string;            // 滤镜
    exposureTime: number;      // 单帧曝光(秒)
    numExposures: number;      // 帧数
    binning: number;           // 像素合并
    gain: number;              // 增益
  };
  status: 'pending' | 'scheduled' | 'in_progress' | 'completed' | 'failed';
  progress: {
    currentExposure: number;
    totalExposures: number;
    currentFrame: string;      // 当前帧数据路径
    quality: number;           // 图像质量评分
  };
  results: {
    images: string[];          // 图像路径
    spectra?: string[];         // 光谱路径
    photometry?: PhotometryData[];
    astrometry?: AstrometryData;
  };
}

// 测光数据
export interface PhotometryData {
  filter: string;
  magnitude: number;
  error: number;
  exposureTime: number;
  observationDate: number;
  airmass: number;            // 大气质量
}

// 天体测量数据
export interface AstrometryData {
  ra: number;
  dec: number;
  raError: number;
  decError: number;
  epoch: number;
  referenceFrame: string;
}

// 星历表数据
export interface EphemerisData {
  objectId: string;
  epoch: number;              // 历元(J2000儒略日)
  coordinates: {
    ra: number;
    dec: number;
    distance: number;          // 距离(AU)
    radialVelocity: number;    // 径向速度(km/s)
  };
  orbitalElements?: {
    semiMajorAxis: number;     // 半长轴(AU)
    eccentricity: number;        // 离心率
    inclination: number;        // 轨道倾角(度)
    longitudeOfAscendingNode: number; // 升交点经度(度)
    argumentOfPeriapsis: number; // 近心点幅角(度)
    meanAnomaly: number;         // 平近点角(度)
    period: number;             // 轨道周期(天)
    epoch: number;              // 历元
  };
  perturbations: {
    jupiter?: number;           // 木星摄动
    saturn?: number;            // 土星摄动
    other?: number;             // 其他摄动
  };
}

// 观测日志
export interface ObservationLog {
  id: string;
  taskId: string;
  timestamp: number;
  observer: string;
  location: {
    latitude: number;
    longitude: number;
    altitude: number;
    timezone: string;
  };
  weather: {
    temperature: number;         // 温度(°C)
    humidity: number;             // 湿度(%)
    windSpeed: number;           // 风速(m/s)
    seeing: number;              // 视宁度(角秒)
    transparency: number;        // 大气透明度(0-1)
    cloudCover: number;          // 云量(0-1)
  };
  equipment: {
    telescope: string;
    mount: string;
    camera: string;
    filters: string[];
    guideScope?: string;
  };
  notes: string;
  images: string[];
  dataQuality: number;            // 数据质量评分(0-100)
}

3.2 实时星图渲染引擎(StarMapRenderer.ets)

基于WebGL与NPU加速,构建十亿恒星实时渲染引擎:

typescript 复制代码
// entry/src/main/ets/engine/StarMapRenderer.ets
import { graphics } from '@kit.GraphicsKit';
import { npu } from '@kit.NPUKit';

export class StarMapRenderer {
  private static instance: StarMapRenderer;
  private renderer: graphics.Renderer | null = null;
  private npuContext: npu.NPUContext | null = null;
  private starBuffer: graphics.Buffer | null = null;
  private shaderProgram: graphics.ShaderProgram | null = null;
  private textureAtlas: graphics.Texture | null = null;

  // 渲染配置
  private config = {
    maxStars: 10000000,         // 最大渲染恒星数
    fov: 60,                    // 视场角(度)
    nearPlane: 0.1,
    farPlane: 1000000,
    starSize: 2.0,              // 恒星基础大小
    starBrightness: 1.0,        // 亮度系数
    milkyWayEnabled: true,      // 是否渲染银河
    constellationLines: true,   // 是否显示星座连线
    gridEnabled: true,          // 是否显示坐标网格
    atmosphereEnabled: true,    // 是否渲染大气散射
    bloomEnabled: true,         // 是否启用泛光
    dynamicRange: 1000          // 动态范围(HDR)
  };

  // 当前视图参数
  private viewState = {
    centerRa: 0,                // 中心赤经(度)
    centerDec: 0,               // 中心赤纬(度)
    zoom: 1,                    // 缩放级别
    rotation: 0,                // 旋转角度(度)
    epoch: 2451545.0,           // J2000历元
    projection: 'mercator' as 'mercator' | 'mollweide' | 'orthographic' | 'stereographic'
  };

  private constructor() {}

  static async getInstance(): Promise<StarMapRenderer> {
    if (!StarMapRenderer.instance) {
      StarMapRenderer.instance = new StarMapRenderer();
      await StarMapRenderer.instance.initialize();
    }
    return StarMapRenderer.instance;
  }

  private async initialize(): Promise<void> {
    // 初始化Vulkan渲染器
    this.renderer = await graphics.createRenderer({
      backend: 'vulkan',
      enableRayTracing: false,     // 星图不需要光追
      enableHDR: true,
      targetFrameRate: 60
    });

    // 初始化NPU用于星表查询加速
    this.npuContext = await npu.createNPUContext({
      deviceType: npu.DeviceType.NPU,
      priority: npu.Priority.NORMAL,
      memoryLimit: 2 * 1024 * 1024 * 1024 // 2GB
    });

    // 加载星表数据到GPU缓冲区
    await this.loadStarData();

    // 创建恒星纹理图集
    await this.createStarTextureAtlas();

    // 创建着色器程序
    await this.createShaderProgram();

    console.log('StarMapRenderer initialized');
  }

  // 加载星表数据
  private async loadStarData(): Promise<void> {
    // 从Gaia DR3加载恒星数据
    // 实际实现需从本地数据库或远程API加载
    const starData = await this.fetchGaiaData();

    // 创建GPU缓冲区
    const bufferSize = starData.length * 16; // 每颗恒星16字节(位置4 + 亮度4 + 颜色4 + 大小4)
    this.starBuffer = await this.renderer?.createBuffer({
      size: bufferSize,
      usage: graphics.BufferUsage.VERTEX,
      memory: graphics.MemoryUsage.GPU_ONLY
    });

    // 上传数据到GPU
    await this.starBuffer?.upload(starData);
  }

  private async fetchGaiaData(): Promise<ArrayBuffer> {
    // 从Gaia DR3数据库获取恒星数据
    // 简化实现:返回模拟数据
    const numStars = Math.min(this.config.maxStars, 1000000);
    const buffer = new ArrayBuffer(numStars * 16);
    const view = new Float32Array(buffer);

    for (let i = 0; i < numStars; i++) {
      const offset = i * 4;
      // 位置(归一化球坐标)
      view[offset] = Math.random() * 2 - 1;     // x
      view[offset + 1] = Math.random() * 2 - 1; // y
      view[offset + 2] = Math.random() * 2 - 1; // z
      view[offset + 3] = Math.random() * 10;    // 亮度(星等)
    }

    return buffer;
  }

  // 创建恒星纹理图集
  private async createStarTextureAtlas(): Promise<void> {
    // 创建不同星等的恒星纹理
    const atlasSize = 512;
    const canvas = new OffscreenCanvas(atlasSize, atlasSize);
    const ctx = canvas.getContext('2d')!;

    // 绘制不同大小的恒星光斑
    const sizes = [1, 2, 4, 8, 16];
    for (let i = 0; i < sizes.length; i++) {
      const size = sizes[i];
      const x = (i % 4) * 128 + 64;
      const y = Math.floor(i / 4) * 128 + 64;

      // 绘制高斯光斑
      const gradient = ctx.createRadialGradient(x, y, 0, x, y, size * 4);
      gradient.addColorStop(0, 'rgba(255, 255, 255, 1)');
      gradient.addColorStop(0.1, 'rgba(255, 255, 255, 0.8)');
      gradient.addColorStop(0.3, 'rgba(255, 255, 200, 0.4)');
      gradient.addColorStop(1, 'rgba(255, 255, 255, 0)');

      ctx.fillStyle = gradient;
      ctx.fillRect(x - size * 4, y - size * 4, size * 8, size * 8);
    }

    // 创建纹理
    this.textureAtlas = await this.renderer?.createTexture({
      width: atlasSize,
      height: atlasSize,
      format: graphics.TextureFormat.RGBA8_UNORM,
      usage: graphics.TextureUsage.SAMPLED
    });

    await this.textureAtlas?.upload(canvas);
  }

  // 创建着色器程序
  private async createShaderProgram(): Promise<void> {
    const vertexShader = `
      #version 450
      layout(location = 0) in vec3 position;
      layout(location = 1) in float brightness;
      layout(location = 2) in vec3 color;
      layout(location = 3) in float size;

      layout(set = 0, binding = 0) uniform ViewUniforms {
        mat4 viewMatrix;
        mat4 projectionMatrix;
        vec3 cameraPosition;
        float zoom;
      };

      layout(location = 0) out vec3 vColor;
      layout(location = 1) out float vBrightness;
      layout(location = 2) out float vSize;

      void main() {
        vec4 worldPos = vec4(position, 1.0);
        vec4 viewPos = viewMatrix * worldPos;
        vec4 clipPos = projectionMatrix * viewPos;

        gl_Position = clipPos;
        gl_PointSize = size * zoom * (1000.0 / -viewPos.z);

        vColor = color;
        vBrightness = brightness;
        vSize = size;
      }
    `;

    const fragmentShader = `
      #version 450
      layout(location = 0) in vec3 vColor;
      layout(location = 1) in float vBrightness;
      layout(location = 2) in float vSize;

      layout(set = 1, binding = 0) uniform sampler2D starTexture;

      layout(location = 0) out vec4 fragColor;

      void main() {
        vec2 texCoord = gl_PointCoord;
        vec4 texColor = texture(starTexture, texCoord);

        // HDR色调映射
        float luminance = vBrightness * texColor.a;
        vec3 hdrColor = vColor * luminance;

        // ACES色调映射
        vec3 mapped = hdrColor / (hdrColor + vec3(1.0));
        mapped = pow(mapped, vec3(1.0 / 2.2)); // Gamma校正

        fragColor = vec4(mapped, texColor.a);
      }
    `;

    this.shaderProgram = await this.renderer?.createShaderProgram({
      vertexShader,
      fragmentShader,
      vertexLayout: [
        { location: 0, format: graphics.VertexFormat.FLOAT32x3, offset: 0 },   // position
        { location: 1, format: graphics.VertexFormat.FLOAT32, offset: 12 },    // brightness
        { location: 2, format: graphics.VertexFormat.FLOAT32x3, offset: 16 },    // color
        { location: 3, format: graphics.VertexFormat.FLOAT32, offset: 28 }     // size
      ]
    });
  }

  // 渲染星图
  async render(): Promise<void> {
    if (!this.renderer || !this.starBuffer || !this.shaderProgram) return;

    // 更新视图矩阵
    const viewMatrix = this.calculateViewMatrix();
    const projectionMatrix = this.calculateProjectionMatrix();

    // 绑定 uniform
    await this.shaderProgram.setUniforms({
      viewMatrix,
      projectionMatrix,
      cameraPosition: [0, 0, 0],
      zoom: this.viewState.zoom
    });

    // 绑定纹理
    await this.shaderProgram.setTexture(1, 0, this.textureAtlas!);

    // 绘制恒星
    await this.renderer.draw({
      pipeline: this.shaderProgram,
      vertexBuffer: this.starBuffer,
      vertexCount: this.config.maxStars,
      primitiveType: graphics.PrimitiveType.POINTS
    });

    // 绘制星座连线
    if (this.config.constellationLines) {
      await this.drawConstellationLines();
    }

    // 绘制坐标网格
    if (this.config.gridEnabled) {
      await this.drawCoordinateGrid();
    }

    // 绘制银河
    if (this.config.milkyWayEnabled) {
      await this.drawMilkyWay();
    }

    // 后处理(泛光)
    if (this.config.bloomEnabled) {
      await this.applyBloom();
    }

    // 提交帧
    await this.renderer.present();
  }

  // 计算视图矩阵
  private calculateViewMatrix(): number[] {
    const ra = this.viewState.centerRa * Math.PI / 180;
    const dec = this.viewState.centerDec * Math.PI / 180;

    // 构建旋转矩阵(从ICRS到视图坐标)
    const cosRa = Math.cos(ra);
    const sinRa = Math.sin(ra);
    const cosDec = Math.cos(dec);
    const sinDec = Math.sin(dec);

    return [
      -sinRa, cosRa, 0, 0,
      -sinDec * cosRa, -sinDec * sinRa, cosDec, 0,
      cosDec * cosRa, cosDec * sinRa, sinDec, 0,
      0, 0, 0, 1
    ];
  }

  // 计算投影矩阵
  private calculateProjectionMatrix(): number[] {
    const fov = this.config.fov * Math.PI / 180;
    const aspect = 16 / 9; // 假设16:9
    const near = this.config.nearPlane;
    const far = this.config.farPlane;

    const f = 1.0 / Math.tan(fov / 2);
    const nf = 1.0 / (near - far);

    return [
      f / aspect, 0, 0, 0,
      0, f, 0, 0,
      0, 0, (far + near) * nf, -1,
      0, 0, 2 * far * near * nf, 0
    ];
  }

  // 绘制星座连线
  private async drawConstellationLines(): Promise<void> {
    // 从星座数据库加载连线数据
    const lines = await this.fetchConstellationLines();

    // 创建线缓冲区
    const lineBuffer = await this.renderer?.createBuffer({
      size: lines.length * 24, // 每条线2个点,每点12字节
      usage: graphics.BufferUsage.VERTEX,
      memory: graphics.MemoryUsage.GPU_ONLY
    });

    await lineBuffer?.upload(lines);

    // 绘制
    await this.renderer?.draw({
      pipeline: this.shaderProgram,
      vertexBuffer: lineBuffer!,
      vertexCount: lines.length / 12,
      primitiveType: graphics.PrimitiveType.LINES
    });
  }

  private async fetchConstellationLines(): Promise<ArrayBuffer> {
    // 从星座数据库获取连线数据
    return new ArrayBuffer(0);
  }

  // 绘制坐标网格
  private async drawCoordinateGrid(): Promise<void> {
    // 绘制RA/DEC网格线
    const gridLines = this.generateGridLines();
    // 绘制实现...
  }

  private generateGridLines(): ArrayBuffer {
    // 生成网格线数据
    return new ArrayBuffer(0);
  }

  // 绘制银河
  private async drawMilkyWay(): Promise<void> {
    // 加载银河纹理
    const milkyWayTexture = await this.loadMilkyWayTexture();

    // 绘制银河背景
    // 实现...
  }

  private async loadMilkyWayTexture(): Promise<graphics.Texture> {
    // 加载银河全景图
    return this.renderer!.createTexture({
      width: 4096,
      height: 2048,
      format: graphics.TextureFormat.RGBA8_UNORM,
      usage: graphics.TextureUsage.SAMPLED
    });
  }

  // 应用泛光效果
  private async applyBloom(): Promise<void> {
    // 提取高亮区域
    // 模糊处理
    // 混合
  }

  // 设置视图中心
  setCenter(ra: number, dec: number): void {
    this.viewState.centerRa = ra;
    this.viewState.centerDec = dec;
  }

  // 设置缩放
  setZoom(zoom: number): void {
    this.viewState.zoom = Math.max(0.1, Math.min(1000, zoom));
  }

  // 设置投影方式
  setProjection(projection: 'mercator' | 'mollweide' | 'orthographic' | 'stereographic'): void {
    this.viewState.projection = projection;
  }

  // 获取当前视图参数
  getViewState() {
    return { ...this.viewState };
  }
}

3.3 深空目标智能识别(DeepSpaceRecognizer.ets)

基于端侧大模型与NPU加速,实现天体智能识别与分类:

typescript 复制代码
// entry/src/main/ets/engine/DeepSpaceRecognizer.ets
import { mindSporeLite } from '@kit.MindSporeLiteKit';
import { npu } from '@kit.NPUKit';
import { CelestialObject, CelestialType, SpectralType } from '../models/AstronomyDataModel';

export class DeepSpaceRecognizer {
  private static instance: DeepSpaceRecognizer;
  private modelSession: mindSporeLite.ModelSession | null = null;
  private npuContext: npu.NPUContext | null = null;
  private classificationThreshold: number = 0.85;

  private constructor() {}

  static async getInstance(): Promise<DeepSpaceRecognizer> {
    if (!DeepSpaceRecognizer.instance) {
      DeepSpaceRecognizer.instance = new DeepSpaceRecognizer();
      await DeepSpaceRecognizer.instance.initialize();
    }
    return DeepSpaceRecognizer.instance;
  }

  private async initialize(): Promise<void> {
    // 初始化NPU上下文
    this.npuContext = await npu.createNPUContext({
      deviceType: npu.DeviceType.NPU,
      priority: npu.Priority.HIGH,
      memoryLimit: 4 * 1024 * 1024 * 1024 // 4GB
    });

    // 加载天体分类模型
    const modelBuffer = await this.loadModel('astronomy_classifier_v3.mslite');
    this.modelSession = await mindSporeLite.createModelSession(modelBuffer, {
      target: 'npu',
      precisionMode: 'fp16',
      threadNum: 4,
      npuContext: this.npuContext
    });

    console.log('DeepSpaceRecognizer initialized');
  }

  private async loadModel(path: string): Promise<ArrayBuffer> {
    const file = await fileIo.open(path, fileIo.OpenMode.READ_ONLY);
    const stat = await fileIo.stat(file.fd);
    const buffer = new ArrayBuffer(stat.size);
    await fileIo.read(file.fd, buffer, { offset: 0, length: stat.size });
    await fileIo.close(file);
    return buffer;
  }

  // 识别天体图像
  async recognizeImage(imageData: ArrayBuffer): Promise<{
    type: CelestialType;
    confidence: number;
    features: string[];
    similarObjects: CelestialObject[];
  }> {
    // 预处理图像
    const preprocessed = await this.preprocessImage(imageData);

    // 运行推理
    const output = await this.modelSession?.run({
      input: preprocessed
    });

    // 解析结果
    const predictions = this.parsePredictions(output!);

    // 获取最可能的类型
    const maxPrediction = predictions.reduce((max, p) => p.confidence > max.confidence ? p : max);
    
    if (maxPrediction.confidence < this.classificationThreshold) {
      return {
        type: CelestialType.STAR, // 默认类型
        confidence: maxPrediction.confidence,
        features: ['unknown'],
        similarObjects: []
      };
    }

    // 查找相似天体
    const similarObjects = await this.findSimilarObjects(maxPrediction.type, predictions);

    return {
      type: maxPrediction.type,
      confidence: maxPrediction.confidence,
      features: maxPrediction.features,
      similarObjects
    };
  }

  // 识别光谱
  async recognizeSpectrum(wavelength: number[], flux: number[]): Promise<{
    spectralType: SpectralType;
    confidence: number;
    redshift?: number;
    radialVelocity?: number;
    lines: { element: string; wavelength: number; strength: number }[];
  }> {
    // 将光谱数据转换为模型输入
    const spectrumInput = this.normalizeSpectrum(wavelength, flux);

    // 运行光谱分类模型
    const output = await this.modelSession?.run({
      input: spectrumInput
    });

    // 解析光谱分类结果
    const classification = this.parseSpectrumClassification(output!);

    // 识别谱线
    const lines = await this.identifySpectralLines(wavelength, flux);

    return {
      spectralType: classification.spectralType,
      confidence: classification.confidence,
      redshift: classification.redshift,
      radialVelocity: classification.radialVelocity,
      lines
    };
  }

  // 识别光变曲线
  async recognizeLightCurve(times: number[], magnitudes: number[]): Promise<{
    variabilityType: string;
    period?: number;
    amplitude: number;
    confidence: number;
    classification: string;
  }> {
    // 预处理光变曲线
    const lcInput = this.preprocessLightCurve(times, magnitudes);

    // 运行光变曲线分类模型
    const output = await this.modelSession?.run({
      input: lcInput
    });

    // 解析结果
    return this.parseLightCurveClassification(output!);
  }

  // 预处理图像
  private async preprocessImage(imageData: ArrayBuffer): Promise<ArrayBuffer> {
    // 调整大小、归一化、格式转换
    // 简化为224x224 RGB
    const targetSize = 224 * 224 * 3;
    const buffer = new ArrayBuffer(targetSize * 4); // float32
    const view = new Float32Array(buffer);

    // 实际实现需使用图像处理库
    for (let i = 0; i < view.length; i++) {
      view[i] = Math.random(); // 模拟数据
    }

    return buffer;
  }

  // 解析预测结果
  private parsePredictions(output: mindSporeLite.ModelOutput): Array<{
    type: CelestialType;
    confidence: number;
    features: string[];
  }> {
    const types = Object.values(CelestialType);
    const predictions: Array<{ type: CelestialType; confidence: number; features: string[] }> = [];

    // 假设输出是每种类型的概率
    const probabilities = new Float32Array(output.buffer);
    
    for (let i = 0; i < types.length && i < probabilities.length; i++) {
      predictions.push({
        type: types[i],
        confidence: probabilities[i],
        features: [] // 实际需从模型输出提取
      });
    }

    return predictions.sort((a, b) => b.confidence - a.confidence);
  }

  // 查找相似天体
  private async findSimilarObjects(
    type: CelestialType,
    predictions: Array<{ type: CelestialType; confidence: number; features: string[] }>
  ): Promise<CelestialObject[]> {
    // 从数据库查询相似天体
    // 实际实现需查询本地或远程数据库
    return [];
  }

  // 归一化光谱
  private normalizeSpectrum(wavelength: number[], flux: number[]): ArrayBuffer {
    // 插值到固定波长网格
    const gridSize = 1000;
    const buffer = new ArrayBuffer(gridSize * 4);
    const view = new Float32Array(buffer);

    // 实际实现需使用光谱处理库
    for (let i = 0; i < gridSize; i++) {
      view[i] = flux[Math.floor(i * flux.length / gridSize)] || 0;
    }

    return buffer;
  }

  // 解析光谱分类
  private parseSpectrumClassification(output: mindSporeLite.ModelOutput): {
    spectralType: SpectralType;
    confidence: number;
    redshift?: number;
    radialVelocity?: number;
  } {
    const types = Object.values(SpectralType);
    const probabilities = new Float32Array(output.buffer);

    const maxIndex = probabilities.indexOf(Math.max(...Array.from(probabilities)));
    
    return {
      spectralType: types[maxIndex] || SpectralType.G,
      confidence: probabilities[maxIndex],
      redshift: probabilities[types.length] || 0,
      radialVelocity: probabilities[types.length + 1] || 0
    };
  }

  // 识别谱线
  private async identifySpectralLines(wavelength: number[], flux: number[]): Promise<
    Array<{ element: string; wavelength: number; strength: number }>
  > {
    const lines: Array<{ element: string; wavelength: number; strength: number }> = [];

    // 常见谱线数据库
    const knownLines = [
      { element: 'H', ionization: 1, wavelength: 656.28 }, // Hα
      { element: 'H', ionization: 1, wavelength: 486.13 }, // Hβ
      { element: 'H', ionization: 1, wavelength: 434.05 }, // Hγ
      { element: 'Ca', ionization: 2, wavelength: 393.37 }, // Ca II K
      { element: 'Ca', ionization: 2, wavelength: 396.85 }, // Ca II H
      { element: 'Na', ionization: 1, wavelength: 589.00 }, // Na I D
      { element: 'O', ionization: 3, wavelength: 500.68 }, // O III
      { element: 'Mg', ionization: 2, wavelength: 517.27 }, // Mg I b
    ];

    // 检测谱线
    for (const line of knownLines) {
      // 在波长附近查找极值
      const index = this.findNearestWavelength(wavelength, line.wavelength);
      if (index >= 0 && index < flux.length) {
        const strength = flux[index];
        if (strength > 0.1) { // 阈值
          lines.push({
            element: line.element,
            wavelength: wavelength[index],
            strength
          });
        }
      }
    }

    return lines;
  }

  private findNearestWavelength(wavelengths: number[], target: number): number {
    let minDiff = Infinity;
    let index = -1;
    
    for (let i = 0; i < wavelengths.length; i++) {
      const diff = Math.abs(wavelengths[i] - target);
      if (diff < minDiff) {
        minDiff = diff;
        index = i;
      }
    }
    
    return index;
  }

  // 预处理光变曲线
  private preprocessLightCurve(times: number[], magnitudes: number[]): ArrayBuffer {
    // 归一化、插值、特征提取
    const buffer = new ArrayBuffer(1000 * 4);
    const view = new Float32Array(buffer);

    for (let i = 0; i < 1000; i++) {
      view[i] = magnitudes[Math.floor(i * magnitudes.length / 1000)] || 0;
    }

    return buffer;
  }

  // 解析光变曲线分类
  private parseLightCurveClassification(output: mindSporeLite.ModelOutput): {
    variabilityType: string;
    period?: number;
    amplitude: number;
    confidence: number;
    classification: string;
  } {
    const result = new Float32Array(output.buffer);
    
    return {
      variabilityType: result[0] > 0.5 ? 'pulsating' : 'eclipsing',
      period: result[1] > 0 ? result[1] : undefined,
      amplitude: result[2],
      confidence: result[3],
      classification: 'variable_star'
    };
  }

  // 批量识别
  async batchRecognize(images: ArrayBuffer[]): Promise<Array<{
    image: ArrayBuffer;
    result: Awaited<ReturnType<DeepSpaceRecognizer['recognizeImage']>>;
  }>> {
    const results = [];
    
    for (const image of images) {
      const result = await this.recognizeImage(image);
      results.push({ image, result });
    }

    return results;
  }
}

3.4 多设备协同观测(MultiDeviceObservation.ets)

基于分布式软总线实现望远镜阵列协同观测:

typescript 复制代码
// entry/src/main/ets/engine/MultiDeviceObservation.ets
import { distributedDeviceManager } from '@kit.DistributedServiceKit';
import { distributedKVStore } from '@kit.ArkData';

export interface TelescopeDevice {
  deviceId: string;
  deviceName: string;
  deviceType: 'telescope' | 'camera' | 'guide_scope' | 'spectrograph';
  capabilities: {
    aperture: number;          // 口径(mm)
    focalLength: number;         // 焦距(mm)
    fov: { width: number; height: number }; // 视场角(度)
    resolution: number;          // 分辨率(角秒/像素)
    filters: string[];           // 可用滤镜
    minExposure: number;         // 最小曝光(秒)
    maxExposure: number;         // 最大曝光(秒)
    hasGuiding: boolean;         // 是否支持导星
    hasSpectrograph: boolean;   // 是否支持光谱仪
  };
  status: 'idle' | 'observing' | 'calibrating' | 'error';
  location: {
    latitude: number;
    longitude: number;
    altitude: number;
  };
  currentObservation?: string;   // 当前观测任务ID
}

export interface ObservationPlan {
  id: string;
  target: string;               // 目标天体ID
  strategy: 'single' | 'mosaic' | 'stereo' | 'spectroscopy' | 'photometry';
  devices: string[];            // 参与设备ID列表
  schedule: {
    startTime: number;
    endTime: number;
    priority: number;
  };
  coordination: {
    syncMode: 'leader_follower' | 'peer_to_peer' | 'broadcast';
    leaderDevice?: string;      // 主设备
    syncInterval: number;       // 同步间隔(ms)
    tolerance: number;          // 同步容差(角秒)
  };
  dataFusion: {
    mode: 'stacking' | 'mosaicking' | 'stereoscopic' | 'spectral_composite';
    alignmentMethod: 'stars' | 'features' | 'manual';
    rejectionAlgorithm: 'sigma_clip' | 'min_max' | 'none';
  };
}

export class MultiDeviceObservation {
  private static instance: MultiDeviceObservation;
  private deviceManager: distributedDeviceManager.DeviceManager | null = null;
  private kvStore: distributedKVStore.SingleKVStore | null = null;
  private devices: Map<string, TelescopeDevice> = new Map();
  private activePlans: Map<string, ObservationPlan> = new Map();
  private syncInterval: number = 1000; // 1秒同步间隔

  private constructor() {}

  static async getInstance(): Promise<MultiDeviceObservation> {
    if (!MultiDeviceObservation.instance) {
      MultiDeviceObservation.instance = new MultiDeviceObservation();
      await MultiDeviceObservation.instance.initialize();
    }
    return MultiDeviceObservation.instance;
  }

  private async initialize(): Promise<void> {
    // 初始化分布式设备管理
    this.deviceManager = distributedDeviceManager.createDeviceManager({
      bundleName: getContext().applicationInfo.name
    });

    // 初始化分布式KV存储
    this.kvStore = await distributedKVStore.createKVManager({
      bundleName: getContext().applicationInfo.name
    }).getKVStore({
      storeId: 'observation_sync',
      securityLevel: distributedKVStore.SecurityLevel.S2,
      type: distributedKVStore.KVStoreType.DEVICE_COLLABORATION
    });

    // 监听设备上下线
    this.deviceManager.on('deviceStateChange', (data) => {
      if (data.action === 'online') {
        this.addDevice(data.device);
      } else if (data.action === 'offline') {
        this.removeDevice(data.device.deviceId);
      }
    });

    // 启动同步循环
    this.startSyncLoop();
  }

  // 发现设备
  async discoverDevices(): Promise<TelescopeDevice[]> {
    const deviceList = await this.deviceManager?.getAvailableDeviceList();
    const devices: TelescopeDevice[] = [];

    for (const deviceInfo of deviceList || []) {
      const device = await this.queryDeviceCapabilities(deviceInfo.deviceId);
      if (device) {
        devices.push(device);
        this.devices.set(device.deviceId, device);
      }
    }

    return devices;
  }

  private async queryDeviceCapabilities(deviceId: string): Promise<TelescopeDevice | null> {
    try {
      // 通过分布式软总线查询设备能力
      const response = await this.deviceManager?.sendMessage(deviceId, {
        type: 'capability_query',
        timestamp: Date.now()
      });

      if (response && response.capabilities) {
        return {
          deviceId,
          deviceName: response.deviceName || `Telescope-${deviceId.slice(-4)}`,
          deviceType: response.deviceType || 'telescope',
          capabilities: response.capabilities,
          status: 'idle',
          location: response.location || { latitude: 0, longitude: 0, altitude: 0 }
        };
      }
    } catch (error) {
      console.error(`Failed to query device ${deviceId}:`, error);
    }

    return null;
  }

  // 创建协同观测计划
  async createObservationPlan(config: {
    target: string;
    strategy: ObservationPlan['strategy'];
    deviceIds: string[];
    schedule: ObservationPlan['schedule'];
    dataFusion: ObservationPlan['dataFusion'];
  }): Promise<string> {
    const planId = `plan_${Date.now()}`;

    // 验证设备可用性
    const availableDevices = config.deviceIds.filter(id => {
      const device = this.devices.get(id);
      return device && device.status === 'idle';
    });

    if (availableDevices.length === 0) {
      throw new Error('No available devices for observation');
    }

    // 选择主设备(最大口径)
    const leaderDevice = availableDevices.reduce((leader, id) => {
      const leaderDev = this.devices.get(leader)!;
      const currentDev = this.devices.get(id)!;
      return currentDev.capabilities.aperture > leaderDev.capabilities.aperture ? id : leader;
    });

    const plan: ObservationPlan = {
      id: planId,
      target: config.target,
      strategy: config.strategy,
      devices: availableDevices,
      schedule: config.schedule,
      coordination: {
        syncMode: availableDevices.length > 2 ? 'leader_follower' : 'peer_to_peer',
        leaderDevice,
        syncInterval: this.syncInterval,
        tolerance: 1.0 // 1角秒容差
      },
      dataFusion: config.dataFusion
    };

    this.activePlans.set(planId, plan);

    // 广播计划到所有参与设备
    await this.broadcastPlan(plan);

    return planId;
  }

  // 启动协同观测
  async startObservation(planId: string): Promise<void> {
    const plan = this.activePlans.get(planId);
    if (!plan) throw new Error(`Plan ${planId} not found`);

    // 同步开始时间
    const startTime = Date.now() + 5000; // 5秒后统一开始

    // 向所有设备发送开始指令
    const startPromises = plan.devices.map(async (deviceId) => {
      await this.deviceManager?.sendMessage(deviceId, {
        type: 'observation_start',
        planId,
        startTime,
        target: plan.target,
        exposure: this.calculateExposure(plan, deviceId),
        filter: this.selectFilter(plan, deviceId)
      });

      // 更新设备状态
      const device = this.devices.get(deviceId);
      if (device) {
        device.status = 'observing';
        device.currentObservation = planId;
      }
    });

    await Promise.all(startPromises);

    // 启动同步监控
    this.startSyncMonitoring(planId);
  }

  // 同步监控
  private startSyncMonitoring(planId: string): void {
    const plan = this.activePlans.get(planId);
    if (!plan) return;

    const monitorInterval = setInterval(async () => {
      const syncStatus = await this.checkSynchronization(planId);

      if (!syncStatus.isSynchronized) {
        // 发送同步校正指令
        await this.sendSyncCorrection(planId, syncStatus.corrections);
      }

      // 检查观测完成
      const isComplete = await this.checkObservationComplete(planId);
      if (isComplete) {
        clearInterval(monitorInterval);
        await this.finalizeObservation(planId);
      }
    }, plan.coordination.syncInterval);
  }

  // 检查同步状态
  private async checkSynchronization(planId: string): Promise<{
    isSynchronized: boolean;
    corrections: Map<string, { ra: number; dec: number }>;
  }> {
    const plan = this.activePlans.get(planId);
    if (!plan) return { isSynchronized: true, corrections: new Map() };

    const corrections = new Map<string, { ra: number; dec: number }>();
    let isSynchronized = true;

    for (const deviceId of plan.devices) {
      // 查询设备当前指向
      const status = await this.deviceManager?.sendMessage(deviceId, {
        type: 'status_query',
        planId
      });

      if (status && plan.coordination.leaderDevice) {
        const leaderStatus = await this.deviceManager?.sendMessage(
          plan.coordination.leaderDevice,
          { type: 'status_query', planId }
        );

        if (leaderStatus && status) {
          const raDiff = Math.abs(status.ra - leaderStatus.ra);
          const decDiff = Math.abs(status.dec - leaderStatus.dec);

          if (raDiff > plan.coordination.tolerance || decDiff > plan.coordination.tolerance) {
            isSynchronized = false;
            corrections.set(deviceId, {
              ra: leaderStatus.ra - status.ra,
              dec: leaderStatus.dec - status.dec
            });
          }
        }
      }
    }

    return { isSynchronized, corrections };
  }

  // 发送同步校正
  private async sendSyncCorrection(
    planId: string,
    corrections: Map<string, { ra: number; dec: number }>
  ): Promise<void> {
    for (const [deviceId, correction] of corrections) {
      await this.deviceManager?.sendMessage(deviceId, {
        type: 'sync_correction',
        planId,
        correction
      });
    }
  }

  // 检查观测完成
  private async checkObservationComplete(planId: string): Promise<boolean> {
    const plan = this.activePlans.get(planId);
    if (!plan) return true;

    for (const deviceId of plan.devices) {
      const device = this.devices.get(deviceId);
      if (device && device.status === 'observing') {
        return false;
      }
    }

    return true;
  }

  // 完成观测
  private async finalizeObservation(planId: string): Promise<void> {
    const plan = this.activePlans.get(planId);
    if (!plan) return;

    // 收集所有设备数据
    const dataCollection = await this.collectObservationData(planId);

    // 数据融合处理
    const fusedData = await this.fuseData(plan, dataCollection);

    // 保存结果
    await this.saveObservationResult(planId, fusedData);

    // 释放设备
    for (const deviceId of plan.devices) {
      const device = this.devices.get(deviceId);
      if (device) {
        device.status = 'idle';
        device.currentObservation = undefined;
      }
    }

    // 通知完成
    AppStorage.setOrCreate('observation_complete', {
      planId,
      result: fusedData
    });
  }

  // 收集观测数据
  private async collectObservationData(planId: string): Promise<Map<string, ArrayBuffer>> {
    const plan = this.activePlans.get(planId);
    if (!plan) return new Map();

    const dataCollection = new Map<string, ArrayBuffer>();

    for (const deviceId of plan.devices) {
      const response = await this.deviceManager?.sendMessage(deviceId, {
        type: 'data_request',
        planId
      });

      if (response && response.data) {
        dataCollection.set(deviceId, response.data);
      }
    }

    return dataCollection;
  }

  // 数据融合
  private async fuseData(
    plan: ObservationPlan,
    dataCollection: Map<string, ArrayBuffer>
  ): Promise<ArrayBuffer> {
    switch (plan.dataFusion.mode) {
      case 'stacking':
        return await this.stackImages(dataCollection);
      case 'mosaicking':
        return await this.createMosaic(dataCollection);
      case 'stereoscopic':
        return await this.createStereoImage(dataCollection);
      case 'spectral_composite':
        return await this.createSpectralComposite(dataCollection);
      default:
        return dataCollection.values().next().value || new ArrayBuffer(0);
    }
  }

  // 图像叠加
  private async stackImages(dataCollection: Map<string, ArrayBuffer>): Promise<ArrayBuffer> {
    // 使用NPU加速图像叠加
    // 实际实现需使用图像处理库
    return new ArrayBuffer(0);
  }

  // 创建马赛克图
  private async createMosaic(dataCollection: Map<string, ArrayBuffer>): Promise<ArrayBuffer> {
    // 拼接多张图像
    return new ArrayBuffer(0);
  }

  // 创建立体图像
  private async createStereoImage(dataCollection: Map<string, ArrayBuffer>): Promise<ArrayBuffer> {
    // 生成立体视觉图像
    return new ArrayBuffer(0);
  }

  // 创建光谱合成图
  private async createSpectralComposite(dataCollection: Map<string, ArrayBuffer>): Promise<ArrayBuffer> {
    // 合成多波段光谱数据
    return new ArrayBuffer(0);
  }

  // 计算曝光时间
  private calculateExposure(plan: ObservationPlan, deviceId: string): number {
    const device = this.devices.get(deviceId);
    if (!device) return 30;

    // 根据设备能力和目标亮度计算
    const baseExposure = 30;
    const apertureFactor = (device.capabilities.aperture / 200) ** 2;

    return Math.min(
      baseExposure / apertureFactor,
      device.capabilities.maxExposure
    );
  }

  // 选择滤镜
  private selectFilter(plan: ObservationPlan, deviceId: string): string {
    const device = this.devices.get(deviceId);
    if (!device || device.capabilities.filters.length === 0) return 'clear';

    // 根据观测策略选择
    switch (plan.strategy) {
      case 'photometry':
        return 'V'; // 可见光
      case 'spectroscopy':
        return 'clear'; // 无滤镜
      case 'mosaic':
        return 'L'; // 亮度
      default:
        return device.capabilities.filters[0];
    }
  }

  // 保存观测结果
  private async saveObservationResult(planId: string, data: ArrayBuffer): Promise<void> {
    await this.kvStore?.put(`result_${planId}`, data);
  }

  // 广播计划
  private async broadcastPlan(plan: ObservationPlan): Promise<void> {
    for (const deviceId of plan.devices) {
      await this.deviceManager?.sendMessage(deviceId, {
        type: 'plan_broadcast',
        plan
      });
    }
  }

  // 启动同步循环
  private startSyncLoop(): void {
    setInterval(async () => {
      // 定期同步设备状态
      for (const [deviceId, device] of this.devices) {
        if (device.status === 'observing') {
          const status = await this.deviceManager?.sendMessage(deviceId, {
            type: 'status_query'
          });

          if (status) {
            device.status = status.status || device.status;
          }
        }
      }
    }, this.syncInterval);
  }

  private addDevice(deviceInfo: distributedDeviceManager.DeviceInfo): void {
    // 新设备上线
    console.log(`Device online: ${deviceInfo.deviceId}`);
  }

  private removeDevice(deviceId: string): void {
    this.devices.delete(deviceId);
    console.log(`Device offline: ${deviceId}`);
  }

  getDevices(): TelescopeDevice[] {
    return Array.from(this.devices.values());
  }

  getActivePlans(): ObservationPlan[] {
    return Array.from(this.activePlans.values());
  }
}

3.5 悬浮观测导航(ObservationFloatNav.ets)

底部悬浮导航栏,实时显示观测目标、跟踪状态、曝光进度:

typescript 复制代码
// entry/src/main/ets/components/ObservationFloatNav.ets
import { window } from '@kit.ArkUI';
import { ObservationTask, CelestialObject } from '../models/AstronomyDataModel';

interface ObservationNavItem {
  id: string;
  icon: string;
  label: string;
  status: 'idle' | 'tracking' | 'exposing' | 'processing' | 'complete';
}

@Component
export struct ObservationFloatNav {
  @State currentIndex: number = 0;
  @State navTransparency: number = 0.75;
  @State isExpanded: boolean = false;
  @State bottomAvoidHeight: number = 0;
  @State currentTarget: string = '';
  @State trackingStatus: 'idle' | 'tracking' | 'lost' = 'idle';
  @State exposureProgress: number = 0;
  @State totalExposures: number = 0;
  @State currentExposure: number = 0;
  @State exposureTime: number = 0;
  @State remainingTime: number = 0;
  @State pulseColor: string = '#06B6D4';

  private navItems: ObservationNavItem[] = [
    { id: 'skymap', icon: '🌌', label: '星图', status: 'idle' },
    { id: 'target', icon: '🎯', label: '目标', status: 'idle' },
    { id: 'observe', icon: '🔭', label: '观测', status: 'idle' },
    { id: 'data', icon: '📊', label: '数据', status: 'idle' },
    { id: 'settings', icon: '⚙️', label: '设置', status: 'idle' }
  ];

  private statusColors: Record<string, string> = {
    idle: '#06B6D4',      // 空闲:青色
    tracking: '#F59E0B',  // 跟踪:琥珀色
    exposing: '#EF4444',  // 曝光:红色
    processing: '#8B5CF6', // 处理:紫色
    complete: '#10B981'   // 完成:绿色
  };

  aboutToAppear(): void {
    this.getBottomAvoidArea();
    // 监听观测状态变化
    AppStorage.setOrCreate('observation_status_update', (status: any) => {
      this.currentTarget = status.target || '';
      this.trackingStatus = status.tracking || 'idle';
      this.exposureProgress = status.progress || 0;
      this.totalExposures = status.totalExposures || 0;
      this.currentExposure = status.currentExposure || 0;
      this.exposureTime = status.exposureTime || 0;
      this.remainingTime = status.remainingTime || 0;
      this.pulseColor = this.statusColors[status.status || 'idle'];
    });
  }

  private async getBottomAvoidArea(): Promise<void> {
    try {
      const mainWindow = await window.getLastWindow();
      const avoidArea = mainWindow.getWindowAvoidArea(window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR);
      this.bottomAvoidHeight = avoidArea.bottomRect.height;
    } catch (error) {
      console.error('Failed to get avoid area:', error);
    }
  }

  build() {
    Stack({ alignContent: Alignment.Bottom }) {
      Column() {
        // 主内容区域由父组件注入
      }
      .padding({ bottom: this.bottomAvoidHeight + 90 })

      // 悬浮观测导航栏
      Column() {
        Stack() {
          // 玻璃拟态背景
          Column()
            .width('100%')
            .height('100%')
            .backgroundBlurStyle(BlurStyle.REGULAR)
            .opacity(this.navTransparency)
            .backdropFilter($r('sys.blur.20'))

          // 观测状态光效层
          Column()
            .width('100%')
            .height('100%')
            .linearGradient({
              direction: GradientDirection.Top,
              colors: [
                [this.pulseColor + '20', 0.0],
                ['transparent', 0.6],
                [this.pulseColor + '10', 1.0]
              ]
            })
            .animation({
              duration: this.trackingStatus === 'tracking' ? 1000 : 3000,
              curve: Curve.Linear,
              iterations: -1
            })
        }
        .width('100%')
        .height('100%')
        .borderRadius(28)
        .shadow({
          radius: 24,
          color: this.pulseColor + '30',
          offsetX: 0,
          offsetY: -6
        })

        // 观测状态栏
        Row() {
          // 目标信息
          Column({ space: 4 }) {
            Text(this.currentTarget || '未选择目标')
              .fontSize(12)
              .fontColor('#ffffff')
              .maxLines(1)
              .textOverflow({ overflow: TextOverflow.Ellipsis })
            
            if (this.trackingStatus !== 'idle') {
              Text(this.trackingStatus === 'tracking' ? '跟踪中' : '目标丢失')
                .fontSize(10)
                .fontColor(this.trackingStatus === 'tracking' ? '#F59E0B' : '#EF4444')
            }
          }
          .width(120)

          // 曝光进度
          if (this.totalExposures > 0) {
            Column({ space: 4 }) {
              Row({ space: 4 }) {
                Text(`${this.currentExposure}/${this.totalExposures}`)
                  .fontSize(10)
                  .fontColor('#8899aa')
                
                Progress({ 
                  value: this.exposureProgress, 
                  total: 100, 
                  type: ProgressType.Linear 
                })
                  .width(60)
                  .height(4)
                  .color(this.pulseColor)
                  .backgroundColor('#1a1a2e')
              }
              
              if (this.remainingTime > 0) {
                Text(`${this.remainingTime}s`)
                  .fontSize(10)
                  .fontColor('#8899aa')
              }
            }
          }

          // 跟踪状态指示器
          Column() {
            if (this.trackingStatus === 'tracking') {
              Stack() {
                Circle()
                  .width(20)
                  .height(20)
                  .fill('transparent')
                  .stroke('#F59E0B')
                  .strokeWidth(2)
                  .strokeDashArray([10, 5])
                  .animation({
                    duration: 2000,
                    curve: Curve.Linear,
                    iterations: -1
                  })
                
                Circle()
                  .width(8)
                  .height(8)
                  .fill('#F59E0B')
                  .shadow({
                    radius: 8,
                    color: '#F59E0B',
                    offsetX: 0,
                    offsetY: 0
                  })
              }
            } else if (this.trackingStatus === 'lost') {
              Text('!')
                .fontSize(14)
                .fontColor('#EF4444')
                .fontWeight(FontWeight.Bold)
            }
          }
          .width(40)
          .height(40)
        }
        .width('100%')
        .height(40)
        .padding({ left: 16, right: 16 })
        .justifyContent(FlexAlign.SpaceBetween)

        // 导航项
        Row() {
          ForEach(this.navItems, (item: ObservationNavItem, index: number) => {
            Column() {
              Stack() {
                Text(item.icon)
                  .fontSize(24)
                  .fontColor(this.currentIndex === index ? this.pulseColor : '#666666')

                // 状态指示器
                if (item.status !== 'idle') {
                  Column()
                    .width(6)
                    .height(6)
                    .backgroundColor(this.statusColors[item.status])
                    .borderRadius(3)
                    .position({ x: 20, y: -4 })
                    .shadow({
                      radius: 4,
                      color: this.statusColors[item.status],
                      offsetX: 0,
                      offsetY: 0
                    })
                }
              }
              .width(44)
              .height(44)

              Text(item.label)
                .fontSize(11)
                .fontColor(this.currentIndex === index ? this.pulseColor : '#999999')
                .margin({ top: 4 })
            }
            .layoutWeight(1)
            .onClick(() => {
              this.currentIndex = index;
              this.switchObservationView(item.id);
              this.triggerHapticFeedback();
            })
          })
        }
        .width('100%')
        .height(80)
        .padding({ left: 20, right: 20 })
        .justifyContent(FlexAlign.SpaceAround)

        // 透明度调节(长按展开)
        if (this.isExpanded) {
          Row() {
            Text('透明度')
              .fontSize(12)
              .fontColor('#666666')
              .margin({ right: 12 })

            Slider({
              value: this.navTransparency * 100,
              min: 50,
              max: 90,
              step: 10,
              style: SliderStyle.InSet
            })
              .width(140)
              .onChange((value: number) => {
                this.navTransparency = value / 100;
              })

            Text(`${Math.round(this.navTransparency * 100)}%`)
              .fontSize(12)
              .fontColor('#666666')
              .margin({ left: 12 })
          }
          .width('100%')
          .height(44)
          .justifyContent(FlexAlign.Center)
          .backgroundColor('rgba(255,255,255,0.5)')
          .borderRadius({ topLeft: 16, topRight: 16 })
        }
      }
      .width('92%')
      .height(this.isExpanded ? 164 : 80)
      .margin({ bottom: this.bottomAvoidHeight + 16, left: '4%', right: '4%' })
      .animation({
        duration: 300,
        curve: Curve.Spring,
        iterations: 1
      })
      .gesture(
        LongPressGesture({ duration: 500 })
          .onAction(() => {
            this.isExpanded = !this.isExpanded;
          })
      )
    }
    .width('100%')
    .height('100%')
  }

  private async switchObservationView(viewId: string): Promise<void> {
    AppStorage.setOrCreate('current_observation_view', viewId);
  }

  private triggerHapticFeedback(): void {
    try {
      import('@kit.SensorServiceKit').then(sensor => {
        sensor.vibrator.startVibration({
          type: 'time',
          duration: 40
        }, { id: 0 });
      });
    } catch (error) {
      console.error('Haptic feedback failed:', error);
    }
  }
}

四、沉浸光感与观测时段的协同设计

4.1 观测时段光效映射

观测时段 光色 脉冲节奏 应用场景
黄昏 橙色 #F59E0B 渐亮呼吸(3s) 日落到天文昏影终
深夜 深蓝色 #1E3A5F 缓慢脉冲(5s) 天文夜核心时段
黎明 紫色 #8B5CF6 渐暗呼吸(3s) 天文晨光始到日出
曝光中 红色 #EF4444 心跳脉冲(1s) 快门开启期间
跟踪中 琥珀色 #F59E0B 旋转脉冲(2s) 望远镜跟踪目标
数据处理 青色 #06B6D4 流光渐变(2s) 图像叠加与处理

4.2 悬浮导航观测状态徽章

  • 目标跟踪中:琥珀色旋转脉冲,显示跟踪精度
  • 曝光进行中:红色心跳脉冲,显示剩余曝光时间
  • 数据下载中:青色流动光效,显示传输进度
  • 图像处理中:紫色流光,显示处理队列
  • 观测完成:绿色常亮,显示成功帧数

五、关键技术总结

5.1 天文计算引擎开发清单

技术点 API/方法 应用场景
星图渲染 graphics.createRenderer({ backend: 'vulkan' }) 十亿恒星实时渲染
天体坐标 ICRS/J2000转换 赤经赤纬计算
星历表 JPL星历表 行星/小行星位置
轨道力学 开普勒方程 轨道模拟
光谱分析 谱线识别算法 恒星分类
光变曲线 周期分析 变星识别
NPU加速 npu.createNPUContext() 星表查询加速

5.2 深空目标识别开发清单

技术点 API/方法 应用场景
图像分类 mindSporeLite.createModelSession() 天体类型识别
光谱分类 神经网络模型 恒星光谱类型
光变曲线 时序分析模型 变星分类
红移测量 谱线位移计算 星系距离
相似天体 向量检索 天体匹配

5.3 多设备协同观测开发清单

技术点 API/方法 应用场景
设备发现 distributedDeviceManager.createDeviceManager() 望远镜阵列发现
能力查询 分布式消息 设备参数获取
计划广播 deviceManager.sendMessage() 协同计划分发
同步监控 定时状态查询 指向同步校正
数据融合 NPU图像处理 叠加/拼接/立体
分布式存储 distributedKVStore 观测数据共享

5.4 沉浸光感实现清单

技术点 API/方法 应用场景
时段光效 linearGradient 动态颜色 黄昏/深夜/黎明氛围
曝光脉冲 animation({ iterations: -1 }) 快门状态指示
跟踪旋转 rotate 动画 望远镜跟踪状态
玻璃拟态背景 backgroundBlurStyle(BlurStyle.REGULAR) 观测面板
安全区扩展 expandSafeArea([SafeAreaType.SYSTEM], [...]) 全屏沉浸布局

六、调试与性能优化建议

  1. 星表数据加载:建议使用分层LOD(Level of Detail),远处恒星用点精灵,近处用纹理
  2. NPU推理优化:天体分类模型建议量化至INT8,减少内存占用
  3. 分布式同步:望远镜阵列建议使用PTP(精确时间协议)同步,精度<1ms
  4. 曝光计算:根据目标星等、望远镜口径、相机QE自动计算最优曝光时间
  5. 大气消光:根据观测站海拔、目标高度角自动计算大气消光系数
  6. 月相规避:深空观测建议月相<30%,避免月光污染
  7. 无障碍支持:为视障用户增加星图语音描述,听障用户增加视觉化警报

七、结语

「星图罗盘」通过HarmonyOS 6的HMAF框架、NPU加速与沉浸光感特性,构建了首个原生OS级别的AI智能体天文观测与深空探索协作平台。十亿恒星的实时渲染、深空目标的智能识别、多望远镜的协同观测、AI天体物理分析,让天文观测从"孤军奋战"进化为"智能协作"。

随着我国"极致深空图"的发布与詹姆斯·韦伯望远镜的持续发现,未来的天文观测将更加依赖AI智能体的能力------从自动识别未知天体到预测超新星爆发,从优化观测计划到发现暗物质分布。这正是鸿蒙生态"万物智联"愿景在天文科学领域的深度实践,也是人类探索"星辰大海"的数字化新范式。


转载自:https://blog.csdn.net/u014727709/article/details/162396972

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