Facebook Aquila无人机再次试飞
2898
外闻 2020-03-18 11:18:03 字数:984

Facebook Aquila无人机在第二次试飞时很成功,没有发生撞机事件。5月22日,Aquila无人机第二次升空试飞。Aquila的尺寸和波音737差不多,重量与汽车相当,它可以为地面提供互联网连接服务。在将近2个小时的飞行过程中,Aquila在美国亚利桑(Arizona)上空展翅翱翔,拂晓之后安全返回地面。



2015年Facebook首次披露了Aquila项目,有些地区没有宽带基础设施,无人机可以为地面提供速度高达10Gbps的互联网服务。


Aquila于2016年6月28日第一次试飞,在随后几天里,人们认为试飞是成功的。不过Facebook发布的博文告诉我们,试飞时出现了问题,Aquila在硬着陆时受伤。几个月后才出现了撞机新闻,媒体披露说美国国家运输安全委员会对事件进行了调查。


今天Facebook披露第二次试飞消息时首先指出无人机着陆很成功。博文称:“无人机飞行了1小时46分钟,完美降落在我们预先准备的着陆位置。”


在博文中,Facebook航空平台总监马丁·戈麦斯(Martin Luis Gomez)介绍称,Aquila从第一次试飞中学到了经验,对无人机做了许多的修改,然后才进行第二次测试。


例如,团队为无人机的机翼增加了扰流板,这样着陆时可以增加阻力、减少升力。很明显,Facebook这样设计是为了防止撞机,去年Facebook曾说过,之所以撞机主要是无人机着陆时速度太快。另外,团队还增加了水平螺旋桨阻止装置,为成功着陆提供支持。还有,无人机增加了几百个新的数据收集传感器,对嵌入式自动驾驶软件进行优化,为Aquila通信子系统增加新的无线电技术。


第二次试飞的主要目的是收集数据。Aquila无人机的设计有一个地方很有趣,它没有传统的着陆装置。第一次之所以着陆失败,没有着陆装置无疑是原因之一。无人机靠Kevlar垫片降落,它附着在电动机吊舱的底部,没有着陆装置可以减少无人机的重量,降低助力。正是因为这样设计,无人机必须完美降落,这样才不会重重撞在地面上。


5月22日测试时,无人机开始降落时挑战很大。首先,自动驾驶软件关闭螺旋桨,这样螺旋桨才可以锁定水平位置,确保螺旋桨不会在触地时受损。可惜的是只有一个螺旋桨对准了。还好,Aquila成功降落在碎石停机坪上,滑行10米后停了下来。


更多可关注2898站长资源平台资讯栏目:waiwen/

0人参与回答
  • 未添加任何数据~~


提示信息

联系电话:
1585150508*
QQ交谈:
小编
站长微信:
站长邮箱: service@qingjiuzhubei.com
537.46msRequest Duration2MBMemory UsageGET zixun/detail/{id?}.htmlRouteAuth status
    • Booting (18.42ms)
    • Application (522.92ms)
      6 templates were rendered
      • site.zixun.detail (resources/views/site/zixun/detail.blade.php)8blade
        Params
        0
        prevArticle
        1
        nextArticle
        2
        newDetail
        3
        comment
        4
        hotnews
        5
        t
        6
        d
        7
        k
      • layouts.site.layout (resources/views/layouts/site/layout.blade.php)18blade
        Params
        0
        obLevel
        1
        __env
        2
        app
        3
        device
        4
        isMobile
        5
        errors
        6
        prevArticle
        7
        nextArticle
        8
        newDetail
        9
        comment
        10
        hotnews
        11
        t
        12
        d
        13
        k
        14
        __empty_1
        15
        __currentLoopData
        16
        loop
        17
        hotnewsVal
      • layouts.site.top (resources/views/layouts/site/top.blade.php)18blade
        Params
        0
        obLevel
        1
        __env
        2
        app
        3
        device
        4
        isMobile
        5
        errors
        6
        prevArticle
        7
        nextArticle
        8
        newDetail
        9
        comment
        10
        hotnews
        11
        t
        12
        d
        13
        k
        14
        __empty_1
        15
        __currentLoopData
        16
        loop
        17
        hotnewsVal
      • layouts.site.bottom (resources/views/layouts/site/bottom.blade.php)18blade
        Params
        0
        obLevel
        1
        __env
        2
        app
        3
        device
        4
        isMobile
        5
        errors
        6
        prevArticle
        7
        nextArticle
        8
        newDetail
        9
        comment
        10
        hotnews
        11
        t
        12
        d
        13
        k
        14
        __empty_1
        15
        __currentLoopData
        16
        loop
        17
        hotnewsVal
      • common.upgrade_vip (resources/views/common/upgrade_vip.blade.php)18blade
        Params
        0
        obLevel
        1
        __env
        2
        app
        3
        device
        4
        isMobile
        5
        errors
        6
        prevArticle
        7
        nextArticle
        8
        newDetail
        9
        comment
        10
        hotnews
        11
        t
        12
        d
        13
        k
        14
        __empty_1
        15
        __currentLoopData
        16
        loop
        17
        hotnewsVal
      • kefu.kefu (resources/views/kefu/kefu.blade.php)18blade
        Params
        0
        obLevel
        1
        __env
        2
        app
        3
        device
        4
        isMobile
        5
        errors
        6
        prevArticle
        7
        nextArticle
        8
        newDetail
        9
        comment
        10
        hotnews
        11
        t
        12
        d
        13
        k
        14
        __empty_1
        15
        __currentLoopData
        16
        loop
        17
        hotnewsVal
      uri
      GET zixun/detail/{id?}.html
      middleware
      web
      controller
      App\Http\Controllers\Site\ZixunController@detail
      namespace
      App\Http\Controllers
      prefix
      /zixun
      where
      as
      zixunDetail
      file
      app/Http/Controllers/Site/ZixunController.php:105-132
      7 statements were executed506.46ms
      • select * from `news` where `news`.`id` = '65356' and `news`.`deleted_at` is null limit 16.01ms/app/Http/Controllers/Site/ZixunController.php:109zzshuju
        Metadata
        Bindings
        • 0. 65356
        Hints
        • Use SELECT * only if you need all columns from table
        • LIMIT without ORDER BY causes non-deterministic results, depending on the query execution plan
        Backtrace
        • 14. /app/Http/Controllers/Site/ZixunController.php:109
        • 22. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 56. /public/index.php:53
      • select * from `new_cates` where `new_cates`.`id` in ('45') and `new_cates`.`deleted_at` is null530μs/app/Http/Controllers/Site/ZixunController.php:109zzshuju
        Metadata
        Bindings
        • 0. 45
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 19. /app/Http/Controllers/Site/ZixunController.php:109
        • 27. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 61. /public/index.php:53
      • select * from `news` where `news`.`deleted_at` is null order by `browse` desc limit 10492.81ms/app/Http/Controllers/Site/ZixunController.php:110zzshuju
        Metadata
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 12. /app/Http/Controllers/Site/ZixunController.php:110
        • 20. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 54. /public/index.php:53
      • update `news` set `browse` = `browse` + 1, `updated_at` = '2025-04-19 02:13:19' where `id` = '65356' and `news`.`deleted_at` is null3.65ms/app/Http/Model/News/News.php:170zzshuju
        Metadata
        Bindings
        • 0. 2025-04-19 02:13:19
        • 1. 65356
        Backtrace
        • 12. /app/Http/Model/News/News.php:170
        • 13. /app/Http/Controllers/Site/ZixunController.php:111
        • 21. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 55. /public/index.php:53
      • select * from `news` where `id` < '65356' and `newscate_id` = '45' and `news`.`deleted_at` is null order by `id` desc limit 1770μs/app/Http/Controllers/Site/ZixunController.php:115zzshuju
        Metadata
        Bindings
        • 0. 65356
        • 1. 45
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 13. /app/Http/Controllers/Site/ZixunController.php:115
        • 21. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 55. /public/index.php:53
      • select * from `news` where `id` > '65356' and `newscate_id` = '45' and `news`.`deleted_at` is null order by `id` asc limit 12.32ms/app/Http/Controllers/Site/ZixunController.php:116zzshuju
        Metadata
        Bindings
        • 0. 65356
        • 1. 45
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 13. /app/Http/Controllers/Site/ZixunController.php:116
        • 21. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 55. /public/index.php:53
      • select * from `comments` where `news_id` = '65356'370μs/app/Http/Controllers/Site/ZixunController.php:117zzshuju
        Metadata
        Bindings
        • 0. 65356
        Hints
        • Use SELECT * only if you need all columns from table
        Backtrace
        • 12. /app/Http/Controllers/Site/ZixunController.php:117
        • 20. /vendor/silber/page-cache/src/Middleware/CacheResponse.php:38
        • 54. /public/index.php:53
        web
        array:2 [ "name" => "Guest" "user" => array:1 [ "guest" => true ] ]
        api
        array:2 [ "name" => "Guest" "user" => array:1 [ "guest" => true ] ]
          _token
          60IpbYh5WaTu54qNmFHx9WyD1WLm4mUjpPgWcJHU
          _previous
          array:1 [ "url" => "http://data.winndoo.cn/zixun/detail/65356.html" ]
          PHPDEBUGBAR_STACK_DATA
          []
          format
          html
          content_type
          text/html; charset=UTF-8
          status_text
          OK
          status_code
          200
          request_query
          []
          request_request
          []
          request_headers
          array:10 [ "accept-encoding" => array:1 [ 0 => "gzip, deflate" ] "accept" => array:1 [ ...
          request_server
          array:33 [ "USER" => "apache" "HOME" => "/usr/share/httpd" "HTTP_ACCEPT_ENCODING" => "gzip, de...
          request_cookies
          []
          response_headers
          array:5 [ "cache-control" => array:1 [ 0 => "no-cache, private" ] "date" => array:1 [ ...
          path_info
          /zixun/detail/65356.html
          session_attributes
          array:3 [ "_token" => "60IpbYh5WaTu54qNmFHx9WyD1WLm4mUjpPgWcJHU" "_previous" => array:1 [ "u...