无人驾驶汽车 - 科幻变现实(1/2)

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Defense Advanced Research Projects Agency
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Rand Corporation
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口语节目地址：http://bulo.hujiang.com/menu/11921/item/707454/The high-tech company Google has a fleet of self-driving cars. By August they had logged 480,000 kilometers. Major auto manufacturers in the United States and Europe are also working on the technology for autonomous vehicles. Volvo is doing road tests and says it plans to sell driverless cars by 2020.
In September, California Governor Jerry Brown signed a bill to allow autonomous vehicles on the roads in his state. "Today we're looking at science fiction becoming tomorrow's reality - the self-driving car."
The technology for these cars includes cameras, radar and motion sensors. The systems have been improved through competitions sponsored by the U.S. government agency DARPA, the Defense Advanced Research Projects Agency. Richard Mason, an engineer with the Rand Corporation helped design vehicles for DARPA's challenge races between 2004 and 2007.
"And every two years, the cars came back and they took in ten times as much data as they did before, so after four years, in 100 times more data. Now, they also constantly cost more, but there's just this exponential increase in capability."高科技公司谷歌有一个无人驾驶车队，截至8月，这些车已经行驶了480,000公里。美国和欧洲的主要汽车制造商也正致力于研究无人驾驶车的技术。沃尔沃正在进行车辆的实地试验，称计划在2020年销售无人驾驶汽车。
九月，加州州长杰里•布朗签署了一项批准无人驾驶车在加州上路的法案。“我们将见证科幻小说在明日成为现实——无人驾驶的汽车。”
无人驾驶汽车的技术包括摄像机、雷达和动作传感器。这个系统在由美国政府机关DARPA（美国国防部高级研究计划局）赞助的竞赛中得到改善。理查德•梅森是兰德公司的工程师，他在2004年到2007年间的DARPA挑战赛中帮忙设计了无人驾驶汽车。
“无人驾驶汽车每两年被送回厂家一次，存入原有数据的10倍数据。这样，四年后，它存有的数据量是原有数据量的100倍。如今，无人驾驶汽车的成本也更高了。但是它的性能也呈指数型增长。”