n***l
发帖数: 143 | 1 应该是有的,看来是失效了。Big bless.
http://en.wikipedia.org/wiki/GPS_Aircraft_Tracking
GPS Aircraft Tracking
From Wikipedia, the free encyclopedia
Contents [hide]
1 How it works
2 Benefits
3 Manufacturers of GPS aircraft tracking devices for general aviation
4 References
How it works[edit]
GPS aircraft tracking solution needs a device embedded in the aircraft and
made of a GPS sensor. It transmits in real time or not the GPS position
received on board to a server on ground via a communication network. The
... 阅读全帖 |
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d*****u
发帖数: 17243 | 2 可能是南宁
http://malaysiandigest.com/frontpage/282-main-tile/492200-mas-k
UNOFFICIAL) AFTER Malaysia Airlines released its statement at 9.05am, we
were alerted at 9.45am that Flight MH370 had resurfaced and landed safely in
Nanming, China. Early reports indicated that the aircraft had experienced a
cockpit electronics malfunction, a reliable source told Malaysian Digest.
It was said that the flight crew and all 239 passengers onboard were
believed to be unharmed as some of the crew had already infor... 阅读全帖 |
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r**********g
发帖数: 22734 | 3 据说飞机在浦东发生过刮蹭。记得有一次事故，飞机行李仓有裂缝，空中爆炸把几个乘
客吸出机外。如果是cockpit爆炸就无法通信了。
还有一次是挡风玻璃破裂把正驾驶吸出机外。 |
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o*****D
发帖数: 1563 | 4 (CNN) -- As mystery surrounds the disappearance of Malaysia Airlines Flight
MH 370, which was en route from Kuala Lumpur to Beijing early Saturday, CNN'
s aviation expert Richard Quest said the airliner would have been at the
safest point in the flight.
"It was two hours into the flight -- this would have been classed as the '
cruise portion of the flight,'" he said. "You break down the flight into
taxi, take-off, climb out and then cruise.
"So in that particular point of the flight, this is the... 阅读全帖 |
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g**1
发帖数: 10330 | 5 Malaysia Airlines has one of Asia's best safety records
BY SIVA GOVINDASAMY AND ALWYN SCOTT
MUMBAI Sat Mar 8, 2014 5:14am EST
(Reuters) - Malaysia Airlines, the operator of Flight MH370 that went
missing en route from Kuala Lumpur to Beijing on Saturday, has established a
record as one of the Asia-Pacific's best full-service carriers in terms of
safety and service despite some recent financial problems.
The Kuala Lumpur-based carrier competes with AirAsia domestically, and with
the likes of AirA... 阅读全帖 |
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n***s
发帖数: 10056 | 6 There is no other explaination. it has to be. Unlike US airplane where
cockpit door is locked during flight, they can break in and kill/control
pilots easily. |
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n***s
发帖数: 10056 | 7 There is no other explaination. it has to be. Unlike US airplane where
cockpit door is locked during flight, they can break in and kill/control
pilots easily. |
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c*********n
发帖数: 115 | 8 http://news.yahoo.com/oil-slicks-spotted-hunt-jet-239-aboard-19
KUALA LUMPUR, Malaysia (AP) — Vietnamese air force planes on Saturday
spotted two large oil slicks close to where a Malaysia Airlines Boeing 777
went missing earlier in the day, the first sign that the aircraft carrying
239 people had crashed.
Related Stories
Oil slicks found in hunt for missing Malaysia jet Associated Press
Vietnam spots oil slicks in hunt for missing jet Associated Press
China-bound Malaysian jet vanis... 阅读全帖 |
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b********6
发帖数: 35437 | 9 你太弱了，飞机上有两个黑匣子
一个叫cockpit voice recorder，记录飞行员对话
一个叫flight data recorder, 记录飞机所有参数
有这两个东西就能在模拟器上完全重现事故过程 |
|
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P*A
发帖数: 7996 | 11 怎么不行？现在国内的长途大客都有实时视频监控，站里的人看到司机昏昏欲睡马上一
个电话打过去 |
|
b********6
发帖数: 35437 | 12 你不知道飞机上还有flight data recorder吗？ |
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o*****D
发帖数: 1563 | 13 别当别人是文盲
你那个记录的是机械、电子参数
人家这边说的是，add one more dimension：
客舱的情况 |
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s**********d
发帖数: 36899 | 14 每个飞机上黑匣子都是两个，一个是飞机的数据，另一个是驾驶舱录音。 |
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b********6
发帖数: 35437 | 15 调查具体哪位乘客制造恐怖事件是FBI的事情。NTSB只需要知道飞机参数和飞行员对话
信息就知道飞机是怎么坠毁的 |
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o*****D
发帖数: 1563 | 16 是啊，但是有没有客舱的视频？
没有的话，就加上咯
按照24Mbit/s （1080p的画质）的bitrate，录24小时
也就126G bytes |
|
o*****D
发帖数: 1563 | 17 这年头叫做什么：无图无真相
虽然这话有点夸张， 但是视频是很重要的信息
如果符合成本效益、各国法律
那么应该考虑加上 |
|
l*******g
发帖数: 27064 | 18 别说了，飞机这块更新是极其慢的
就拿搜救来说，尼玛还需要专人用眼睛盯着窗口往下看 |
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g*******a
发帖数: 903 | 19 一般人稱的黑盒子是兩個裝置合在一起的俗稱，航空術語應該分開為兩個，一個是
Cockpit Voice Recorder，記錄正副駕駛間與塔台的一切對話，有四個頻道周而復始的
記錄最新兩個小時的對話。其實就是個防火防水防震性能極好的錄音機。另一個裝置是
Flight Data Recorder，接收飛機上另一個裝置Flight Data Acquisition Units所收
集的一切電子訊號，這玩藝其實就是個硬碟機。最新的是用Solid State Hard Drive，
防護性能設計和CVR差不多。
這兩個裝置通常裝在機尾附近，外面塗橘紅色的醒目顏色，最外層是鑄鐵做的外殼，裡
面是CVR和FDR的機件外還有一個Emergency Location Transmitter，也就是俗稱的
Beacon，就是個小發報機，有好幾個Sensors，一遇到撞擊，高溫或海水就會自動啟動
。每隔五十秒會持續發出Distress Signal Burst，電池壽命則按航空公司保養的好壞
而定，按保養規定最少該撐36小時，一般會稍長。這段時間之內就是找到黑盒子的黃金
時間，超過兩三天就很難靠ELT找到殘... 阅读全帖 |
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i****a
发帖数: 36252 | 20 http://en.wikipedia.org/wiki/Helios_Airways_Flight_522
11:49 Fighters see an individual in the cockpit, apparently trying to
regain control of aircraft
11:50 Left (#1) engine stops operating, presumably due to fuel starvation
11:54 CVR records two MAYDAY messages
12:00 Right (#2) engine stops operating
12:04 Aircraft crashes in mountains near Grammatikos, Greece |
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O*******d
发帖数: 20343 | 21 Actual Air Traffic Control Audio Tape of the Valujet Crash
http://www.hazmat-news.com/archives/valujettranscri.html
Here are some of the radio transmissions, without some of the comments made
by other planes traveling in the area at the same time:
Flight 592: Afternoon departure. Critter 592 is out of 500 going to 5,000.
Miami Departure (MD): Critter 592 departure, good afternoon, radar contact,
climb and maintain 7,000.
F592: 7,000, 592.
MD: Critter 592 turn left heading three-six-zero.
F592: t... 阅读全帖 |
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c*****g
发帖数: 21627 | 22 "let me in, cock, pit..." |
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K*****2
发帖数: 9308 | 23 这就很容易解释劫持了，几个美女特工靠着大波波进了cockpit，撂倒所有驾驶员，劫
持飞机随便开，最后直接和美帝谈判。
我现在觉得光马猴自己可能没有卵搞什么秘密的军事行动，这次出马的应该就是大boss
，美帝。 |
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o*****D
发帖数: 1563 | 24 The aviation officials said MH370's last heard words were made in response
after Malaysian air traffic controllers told the cockpit that they were
entering Vietnamese airspace and that air traffic controllers from Ho Chi
Minh city were taking over.
Missing MH370: 'Alright, good night' were pilot's last heard words |
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c*****g
发帖数: 21627 | 25 不用，空乘安排外F。
找那种cockpit类似于战斗机的设计的飞机
如果没有就自行改装，
到时候驾驶的机长大副直接跳伞 |
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z********i
发帖数: 40 | 26 温习了一下Air crash investigation 的last hour of Flight 11, 发现这次失踪的
MH370的确有不少惊人的相似之处。
被劫持的Flight 11也是在劫机犯发动之前正常爬升到了巡航高度，MH370也是。
Flight 11在被劫持之后直到撞击世贸大厦之前都没有机会发出过SOS或者Mayday警告信
息，因为5名劫机犯先是刺伤了头等舱乘客并用瓦斯类似的东西让头等舱乘客和空乘陷
入混乱，进而撤入经济舱，导致没有时间也没有反应过来第一时间通知cockpit里的机
组人员，致使安全门没有来得及锁死，然后又用box cutter之类的刀具迅速瘫痪了驾驶
员，完全没有时间做出反应。MH370至始至终都没有发出警告信息，911的经验证明劫持
可以做到阻止SOS信号发出的。
Flight 11飞机被劫持后就基本一直保持无线电静默,transponder被关闭。不过美国的
air traffic controller水平很高，始终能知道哪个雷达信号点是Flight 11。他们甚
至还让紧随其后的UA195肉眼确认了飞机的确在飞。可惜不到6min后后者也被劫持。... 阅读全帖 |
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S**********b
发帖数: 3142 | 27 这个据说是美国的规矩
在美国以外国家飞机上的cockpit未必跟美国一样
这个好像昨天cnn 电视上也提到过了 |
|
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j*******7
发帖数: 6300 | 29 http://en.wikipedia.org/?title=9/11_conspiracy_theories
According to the 9/11 Commission Report, the cockpit voice recorders (CVR)
or flight data recorders (FDR), or "black boxes", from Flights 11 and 175
were not recovered from the remains of the WTC attack; however, two men,
Michael Bellone and Nicholas DeMasi, who worked extensively in the wreckage
of the World Trade Center, said in the book Behind-The-Scenes: Ground Zero[
178] that they helped federal agents find three of the four "black box... 阅读全帖 |
|
C******e
发帖数: 1850 | 30 KUALA LUMPUR (Reuters) - The last words from the cockpit of missing Malaysia
Airlines Flight MH370 - "all right, good night" - were uttered after
someone on board had already begun disabling one of the plane's automatic
tracking systems, a senior Malaysian official said.
Both the timing and informal nature of the phrase, spoken to air traffic
controllers as the plane with 239 people aboard was leaving Malaysian-run
airspace on a March 8 flight to Beijing, could further heighten suspicions
of hij... 阅读全帖 |
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c******n
发帖数: 5697 | 31 很恐怖的是：目的是要把这架飞机用在另外一个目标上
Each ping that came from the 777's SATCOM included GPS, altitude and speed
data
The transmissions, one person said, were comparable to the plane “saying I
’m here, I’m ready to send data.”
Unknown so far to investigators is what happened to the plane following the
final satellite ping, these people said. Questions remain about the plane’s
status, including what was happening in the cockpit.
But the huge uncertainty about where the plane was headed, and why it
apparently ... 阅读全帖 |
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g**1
发帖数: 10330 | 32 Missing Flight Left Data Trail
Jetliner 'Pinged' Satellites With Location, Altitude for Hours After
Disappearance
Communication satellites received intermittent data "pings" from a missing
Malaysia Airlines 3786.KU -4.08% jet, giving the plane's location, speed
and altitude for at least five hours after it disappeared from civilian
radar screens, people briefed on the investigation said Thursday.
The final satellite ping was sent from over water, at what one of these
people called a "normal" cr... 阅读全帖 |
|
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w***n
发帖数: 766 | 34 rest area is not cockpit, cannot control the plane from there. |
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o*****D
发帖数: 1563 | 35 发现Boeing真的太烂了
首先，每架飞机应该有一个卫星电话，地面可以随时打上去；甚至可以强行接通收听
cockpit的语音环境
其次，GPS应该不间断，发到地面server；
第三，transponder不应该可以手动关闭。如果不断发出错误信息，应该由地面的软件
，手动and/or自动暂停接受某驾飞机的信息。
最后，iphone的录音，都比黑匣子长！2个小时太tama烂了 |
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c***c
发帖数: 21374 | 36 发现自己整错了。黑匣子有两个，记录的时间也不同。两个小时的是后者。后者不会有
什么用。后面几个小时满飞机都是死人或者昏死的人。
飞行数据记录器（Flight Data Recorder，FDR）能记录飞机的系统工作状况和引擎工
作参数等飞行参数，内容包括：空中飞行速度、高度、航向、发动机推力资料、俯仰与
滚动资料、纵向加速度资料及许多参数资料，根据美国联邦航空局对飞行数据记录器的
最低要求，必须包括压力高度、空速、磁航向、加速度及经过时间等5项，除了上述五
项，美国联邦航空局另外再要求俯仰姿态、滚转姿态、发动机动力及襟翼的位置。计录
器是由马达带动的8条磁道，磁带全长约140米，可记录60多种资料25小时。
驾驶舱通话记录器（Cockpit Voice Recorder，CVR），又称座舱通话记录器，仪器上
的四条音轨分别记录飞行员与航空管制员的通话，正、副驾驶员之间的对话、驾驶员、
空服员对乘客的广播，以及驾驶舱内各种声音（引擎声、警报声）。记录的时间约2小
时，录完后，会自动倒带从头录起，若发生空难，之前的两个小时会被完整保留，并持
续发出讯号，直到断电为止（记录器所提供的电力足够... 阅读全帖 |
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F*********u
发帖数: 12190 | 37 使用radio是现在的航空管制的方式决定的，即使将来采用更先进点对点的数据通讯
也不可能是波音主导的，需要FAA来决定
卫星电话有些现在已经有了吧，是不是采用也不会是波音决定的，没有任何技术难度
监听cockpit,这个大概工会都不会同意
飞机上所有的电气设备都可能会产生干扰或者短路等故障，即使没有开关也会有fuse/
circuit breaker，飞行员都能想办法关掉，包括FDR和CVR
transponder除了前面说的故障以外，在gate和地面的时候是需要关掉的
CVR时间延长也没什么难度，只是没什么必要，如果真是飞行员动手脚，把CVR关掉就是
了，说到底我们必须得相信飞行员，否则这个行业的根基都不存在了，飞行员想自杀的
话那你真是一点办法都没有 |
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G*B
发帖数: 1380 | 38 飞向陆地着陆后又能怎么办？ 仓里还有200多号人，就凭2个人也控制不了，早被仓里
的人冲进cockpit拿下了，然后打开手机各种电子设备求救。 但是现在并没有。 |
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m****y
发帖数: 394 | 39 两个小时的那是cockpit voice recorder
flight data recorder长多了 |
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m*****n
发帖数: 1513 | 40 MH370 Malaysia plane: How maths helped find an earlier crash
Statisticians helped locate an Air France plane in 2011 which was missing
for two years. Could mathematical techniques inspired by an 18th Century
Presbyterian minister be used to locate the mysterious disappearance of
Malaysia Airlines Flight MH370?
In June 2009, Air France flight 447 went missing flying from Rio de Janeiro
in Brazil to Paris, France.
Debris from the Airbus A330 was found floating on the surface of the
Atlantic five d... 阅读全帖 |
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g*****a
发帖数: 1112 | 41 from CNN
While all information so far indicates that someone inside the cockpit,
believed to be the co-pilot, made the last verbal communication with air
traffic controllers -- "All right, good night" -- at 1:19 a.m., a law
enforcement official told CNN that the plane's programmed change in
direction was entered at least 12 minutes before the plane's verbal signoff. |
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h**********e
发帖数: 2973 | 42 Cockpit voice recorder好像只能记录半个小时的驾驶舱录音。
Flight data recorder似乎也是半小时，也可能是全程。 |
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M**Q
发帖数: 477 | 43 one from cockpit voice recorder
the other from flight data recorder
there are two so called black boxes |
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t***o
发帖数: 4265 | 44 为什么探测到的信号不稳定？时断时续，还位置漂移？
中国船只和澳大利亚的船只分别在相隔600公里的地方听到声音，可能声音强度不一样
。对比一下信号强度，有助于定位。
为啥信号时有时无呢？
中国船只听到短暂的信号两次，澳大利亚船只一次听到俩小时，然后消失，然后换位置
又听到13分钟的信号。
水下的洋流导致声音信号的传播？建个海底超声信号传播的模型，会有助于这次搜索。
Two separate detections occurred, he said. The first was held for two hours
and 20 minutes before being lost.
The ship then turned around and on the return leg detected the signal again
for 13 minutes.
"On this occasion two distinct pinger returns were audible. Significantly
this would be consistent with transmissio... 阅读全帖 |
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T**********e
发帖数: 29576 | 45 X-37B在轨道呆了几百天，不知在干啥，据说偷偷搞别国卫星。
Secret Spaceplane, Mystery Mission
The Air Force’s secret space plane has been up in orbit for nearly 500 days
—a space endurance record. But nearly a year and a half into the mission,
the Pentagon still won’t say what the X-37B is doing up there, or when it
might come back.
The U.S. Air Force boosted the robotic X-37B atop the nose of an Atlas-5
rocket in December 2012. Since then it’s orbited the Earth thousands of
times, overflying such interesting places as No... 阅读全帖 |
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g***j
发帖数: 40861 | 46 【 以下文字转载自 History 讨论区 】
发信人: molen (molen), 信区: History
标 题: Re: 蒙古对印度文明是一次洗劫吗？
发信站: BBS 未名空间站 (Mon Jan 27 12:19:07 2014, 美东)
下面是从两本书抄录来:
1) India, art and culture 1300-1900, Stuart Cary Welch, the Metropolitan
Museum of Art, New York, 1985
2) (Lee, 1982): A history of Far Eastern art
这两本书，google都可以找到。
The Khyber and Bolan passes in India’s northwest corner during the second
millennium BC and continued to pour in until the end of 17th century. 从兴都
库什山脉(Hindu Kush)往南，过了开伯尔或者博兰山口，到了Punjab(旁遮普)，这里... 阅读全帖 |
|
g*****a
发帖数: 1112 | 47 http://www.nbcnews.com/storyline/missing-jet/missing-jet-record
Audio recordings of the final conversations between pilots of the missing
Malaysian jet and teams of air traffic controllers on the ground were "
edited" before they were made public, voice experts say.
The tapes also appear to be recorded by at least two different audio sources
, one of which may have been a digital recorder held up to a speaker, they
said.
The analysts cautioned that their observations don't necessarily imply
anyt... 阅读全帖 |
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y****i
发帖数: 2108 | 48 黑匣子不实时传输据说是机长们不同意，因为在cockpit里的打情骂俏会被听到，侵犯
了隐私权。。 |
|
x****u
发帖数: 12955 | 49
Very difficult to make everything match. You can't match the background
noise, time stamp on spoken words, and tones of voice in the cockpit voice
recorder, especially when the ground controller also have a copy of the
voice recording on their end.
The Flight data recorder has so many parameters recorded that it would be
almost impossible to create all the flight parameters to correspond to a
faked scenario. |
|
y***l
发帖数: 1371 | 50 The flight data recorder and cockpit voice recorder, known as the black
boxes, could provide key information about what happened to the plane,
analysts told CNN.
But is it possible the rebels tampered with them before handing them over?
"You can't go and fool around with the data. These are solid, secure devices
," said Peter Goelz, former National Transportation Safety Board managing
director. "If there was any kind of attempt to alter them, investigators
would know immediately."
黑匣子转给马方了，而且看起来... 阅读全帖 |
|
