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VOA慢速[农业报道]法国农民使用小型无人机监控庄稼

2015-03-20    来源:普特英语听力    【      美国外教 在线口语培训
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It used to be mostly the military that used small, unpiloted aircraft, called “drones.” The little planes were very costly. But as they have dropped in price more people have begun to use them. Rescue workers and farmers are among the new users.

A company in France is using drones to help farmers examine their crops and limit the amount of fertilizer they use.

The fast rate of development of computer technology, image sensing devices, satellite navigation and smartphones has led to lower-priced drones. Researchers and developers have learned how to build smaller and less-costly drones sought by individuals, companies and governments.

Moviemakers are using drones to film from the sky. Historians use them when they explore ancient buildings. Rescue workers use them to look for people. And now farmers are using them to monitor their crops.

Romain Faroux is a French businessman who starts companies. His father was a farmer. He believed drones could help farmers. He helped create a company that developed a small drone that could be controlled by people on the ground. They called it “Agridrone.” It uses a special “optical sensor” to examine crops.

He says the technology used is similar to that used by smartphones -- except it has wings. He says the industrialization of electronic parts for smartphones and tablets lets them get the technology -- including GPS -- at a very low price.

A computer program directs the drone to fly over the crops. The sensor on the drone records four different-colored “bands” of sunlight that are reflected off the crops.

Jean-Baptiste Bruggeman is a farmer. He says the drone flies over his crops at different times of the season. He says this provides a lot of information about his crops.

He says the drone pictures show him the exact amount of fertilizer the crops need. He says it also shows exactly where the fertilizer is needed. Some areas of a field may need more than others.

As a result, Mr. Bruggeman says there is reduced nitrogen from the fertilizer after the harvest. This helps nature.

Romain Faroux says farmers use information gathered by the Agridrone to place fertilizer only in areas where it was needed. This saves money and reduces pollution. Before they used the drones, farmers would put the same amount of fertilizer everywhere.

Drones also save time because farmers can examine up to three hectares in about a minute.

I’m Marsha James.


从前军事上最使用的一种小型的,无人驾驶的“无人飞机”。这种小型飞机很昂贵。但是随着价格的下降,越来越多的人开始使用这种飞机。抢救工人和农民是该产品的新使用者。

在法国,一家公司用无人机帮助农民检测他们的庄稼,限制肥料使用的数量。计算机技术,图像传感设备,卫星导航和智能手机的迅速发展,这些因素导致无人机价格下降。研究人员和开发者已经掌握如何制造满足个人,公司和政府所需求的更小,成本更低的无人机。

电影制片人使用无人机在天空里拍电影。历史学家用无人机探测古建筑。搜救人员用无人机搜救。如今农民用无人机来检测他们的作物。
 
Romain Faroux是法国的一个商人,他经营者一家小公司。他的父亲是一位农民。他相信无人机可以帮助农民。他船板了一家公司,该公司是研发能被地面人员控制的小型无人机。他们称之为“农业无人机”。该飞机采用一种特殊的“光学传感器”来检测作物。

他表示无人机技术就类似于智能手机技术--除了无人机有翅膀。他说,智能手机和平板电脑的电子部件产业化让他们以一种低廉的价格获得包括GPS定为系统技术。电脑程序操控无人机在作物上的空中飞行。无人机上的传感器记录阳光照射,作物反应的四种不同颜色状态。

Jean-Baptiste Bruggeman是一位农民。他说无人机在不同是季节不同的时间,飞跃作物上空。他表示这种方法向他提供了很多关于其作物的信息。

他说无人机的图像告诉了他作物所需肥料的精确数量。还能让他清楚哪一部分需要化肥。一些地区也许比其他地区更需要化肥。
 
Mr. Bruggeman表示,收获后的肥料中含氮量减少,有助于土壤恢复。

Romain Faroux说农民根据无人机检测,验收的信息来想所需区域投放化肥。这样既能节省钱还能减少污染。在使用无人机之前,农民会在每一个地方使用同样多的化肥。

无人机还可以节省时间,因为农民可以一分钟左右检测三公顷作物。

我是Marsha James



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