科學60秒:黑匣子為安全降落保駕護航
來源：滬江聽寫酷
2011-09-28 10:00
The little black boxes in airplanes provide useful information after a crash has taken place. Now researchers have___1___a way to use black box info from planes that do not___2___—to help prevent accidents from ever happening.
Some airlines already use a program that checks 88 flight parameters in the black box. But a Boeing 787 can record 2,000 flight parameters. So the researchers employed what’s called cluster analysis. They took data from 365 flights of Boeing 777s in a month of___3___of a now-defunct European airline. They filtered the data into clusters, groupings of flights with similar___4___. Any data points outside of normal operations appeared as an anomaly.
The information generated identified three problematic flights. In one, for instance, the data showed that the pilot had trouble rotating the plane during___5___.
The system can identify anomalies that suggest both physical and operational issues—such as those that caused a runway accident in Chicago in December 2005.
The researchers from M.I.T. and Spain will present their paper in October at the 30th Digital Avionics Systems Conference in Seattle. Because，to prevent future accidents, you might have to think inside the box.
【視聽版科學小組榮譽出品】
Some airlines already use a program that checks 88 flight parameters in the black box. But a Boeing 787 can record 2,000 flight parameters. So the researchers employed what’s called cluster analysis. They took data from 365 flights of Boeing 777s in a month of___3___of a now-defunct European airline. They filtered the data into clusters, groupings of flights with similar___4___. Any data points outside of normal operations appeared as an anomaly.
The information generated identified three problematic flights. In one, for instance, the data showed that the pilot had trouble rotating the plane during___5___.
The system can identify anomalies that suggest both physical and operational issues—such as those that caused a runway accident in Chicago in December 2005.
The researchers from M.I.T. and Spain will present their paper in October at the 30th Digital Avionics Systems Conference in Seattle. Because，to prevent future accidents, you might have to think inside the box.
【視聽版科學小組榮譽出品】
devised
crash
operations
patterns
take off
飛機上的小黑匣子可以在飛機事故后提供有用信息?，F(xiàn)在，研究者們利用從沒出事的飛機上黑匣子里面的信息來阻止事故的發(fā)生。
有些航線已經(jīng)利用一種軟件，這種軟件可以檢查88次飛行信息。但是一架波音787飛機可以記錄2000次飛行信息。因此，研究人員使用了一種集中分析技術。他們能夠收集到現(xiàn)在已經(jīng)不在使用在歐洲航線的波音777的在一個月中的365次飛行。他們過濾了數(shù)據(jù)庫中的信息，集中那些有相似點的飛行。任何被排除在外的普通飛行會被認為是異常。
這些信息中出現(xiàn)了3個明顯的問題航線。挑其中一個來說，數(shù)據(jù)顯示這架飛機在起飛時不能正常轉動。
這個系統(tǒng)能識別異常的情況，通常是物理和機械問題。例如在2005年12月份引起的跑道事故。
麻省理工和西班牙的研究者在10月30號在西雅圖召開的的“電子航空系統(tǒng)會議”上，發(fā)表了文章。因為，如果要避免事故，我們必須認真研究黑匣子。