// 定义GPS数据的结构体
struct GPSData {
    double latitude;   // 纬度
    double longitude;  // 经度
    double altitude;   // 海拔高度
    double timestamp;  // 时间戳，用于记录接收信号的时间
    double speed;      // 速度
    double heading;    // 方向，表示运动方向的角度
    double hdop;       // 水平精度因子 (Horizontal Dilution of Precision)
    double vdop;       // 垂直精度因子 (Vertical Dilution of Precision)
    int satellite_count;  // 可见卫星的数量
};

// GPS设备类，用于模拟或记录GPS的操作
class GPSDevice {
public:
    // 构造函数
    GPSDevice() : latitude(0.0), longitude(0.0), altitude(0.0), timestamp(0.0), speed(0.0), heading(0.0), hdop(0.0), vdop(0.0), satellite_count(0) {}

    // 更新GPS数据
    void updateGPSData(double lat, double lon, double alt, double time, double spd, double head, double h_dp, double v_dp, int sat_count) {
        data.latitude = lat;
        data.longitude = lon;
        data.altitude = alt;
        data.timestamp = time;
        data.speed = spd;
        data.heading = head;
        data.hdop = h_dp;
        data.vdop = v_dp;
        data.satellite_count = sat_count;
    }

    // 获取当前GPS数据
    GPSData getGPSData() {
        return data;
    }

    // 打印GPS数据
    void printGPSData() {
        std::cout << "Latitude: " << data.latitude << "\n";
        std::cout << "Longitude: " << data.longitude << "\n";
        std::cout << "Altitude: " << data.altitude << " meters\n";
        std::cout << "Timestamp: " << data.timestamp << " seconds\n";
        std::cout << "Speed: " << data.speed << " m/s\n";
        std::cout << "Heading: " << data.heading << " degrees\n";
        std::cout << "HDOP: " << data.hdop << "\n";
        std::cout << "VDOP: " << data.vdop << "\n";
        std::cout << "Satellite Count: " << data.satellite_count << "\n";
    }

private:
    GPSData data;  // GPS数据
};