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托福听力练习-科学美国人60秒:飞机黑匣子信息

2017-04-20 08:38:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：飞机黑匣子信息

　　科学美国人60秒听力练习：飞机黑匣子信息

　　科学美国人60秒英文文本

　　飞机失事造成的灾难一直在继续，有效地利用黑匣子的信息，提高飞行的安全性。

　　The little black boxes in airplanes provide useful information after a crash has taken place. Now researchers have devised a way to use black box info from planes that do not crash—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 operations of a now-defunct European airline. They filtered the data into clusters, groupings of flights with similar patterns. 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 takeoff.

　　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.

　　—Cynthia Graber

　　中文翻译请点击下一页

本文关键字: 托福听力 科学美国人 科学60秒sss

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