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Sensors and sensitivity

机译：传感器和灵敏度

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If your mobile phone could talk, it could reveal a great deal. Obviously it would know many of your innermost secrets, being privy to your calls and text messages, and possibly your e-mail and diary, too. It also knows where you have been, how you get to work, where you like to go for lunch, what time you got home, and where you like to go at the weekend. Now imagine being able to aggregate this sort of information from large numbers of phones. It would be possible to determine and analyse how people move around cities, how social groups interact, how quickly traffic is moving and even how diseases might spread. The world's 4 billion mobile phones could be turned into sensors on a global data-collection network.rnThey could also be used to gather data in more direct ways. Sensors inside phones, or attached to them, could gather information about temperature, humidity, noise level and so on. More straightforwardly, people can send information from their phones, by voice or text message, to a central repository. This can be a useful way to gather data quickly during a disaster-relief operation, for example, or when tracking the outbreak of a disease. Engineers, biologists, sociologists and aid-workers are now building systems that use handsets to sense, monitor and even predict population movements, environmental hazards and public-health threats.
机译：如果您的手机可以通话，则可以显示很多内容。显然，它会知道您的许多最内在的秘密，对您的电话和短信的保密性，甚至对您的电子邮件和日记的保密性。它还知道您去过哪里，如何上班，喜欢在哪里吃午餐，什么时候回家以及周末想去哪里。现在想象一下，能够从大量电话中收集此类信息。可以确定和分析人们如何在城市中四处走动，社会群体如何互动，交通如何快速移动，甚至疾病如何传播。全球40亿部移动电话可以变成全球数据收集网络上的传感器。它们还可以用于更直接地收集数据。手机内部或与之连接的传感器可以收集有关温度，湿度，噪音水平等的信息。更直接的是，人们可以通过语音或文本消息将电话中的信息发送到中央存储库。例如，这是在灾难救援操作期间或在跟踪疾病爆发时快速收集数据的有用方法。工程师，生物学家，社会学家和援助人员现在正在构建使用手机来感应，监视甚至预测人口流动，环境危害和公共卫生威胁的系统。

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    《The economist》 |2009年第8634期|50-2550-26|共2页
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