Monday, September 27, 2010

东京游戏展实录

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主馆
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看板姑娘
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试玩儿区不让拍照,可我必须给小梅梅留一张~必须滴
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留园首发,感谢关注
进入cosplay 的部分鸟~这部分在第4到第5展厅中间,好看的麻豆要排队才能拍到
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请大家忽略脸,谢谢~我发誓我是冲着胸去的
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谢谢欣赏~

Sunday, September 19, 2010

日本公司打造无线充电技术 无需电线也能充电

富士通演示无线充电技术如何点亮两个灯泡。 






在富士通的演示中,两部手机正进行无线充电。 






两个共振线圈的横截面。 






富士通的设计利用磁共振而不是更为传统的电磁感应。




北京时间9月19日消息,据国外媒体报道,最近,日本富士通公司揭开了一项充电技术的神秘面纱,可利用磁铁立即为一个以上的设备充电并且完全不借助电线。 这项技术允许设备在距离充电器最远可达几米远的地方进行无线充电,同时也将促使日本政府在2012年之前在公共场所设置无线充电网点。 

从理论上说,这一系统对处在充电场的人完全无害,因为电量只在以同一频率共振的线圈之间传输。但对于这种无线充电技术,很多人可能产生担忧,就像当初对Wi-Fi和手机天线杆一样。 

富士通的无线充电技术利用磁共振在充电器与设备之间的空气中传输电荷,线圈和电容器则在充电器与设备之间形成共振。富士通表示这一系统可以在未来得到广泛 应用,例如针对电动汽车的充电区以及针对电脑芯片的电量传输。采用这项技术研制的充电系统所需要的充电时间只有当前的一百五十分之一。 

最近几年,随着iPhone、iPad等对电量充满“饥渴”的设备迅速兴起,研发无线充电等突破性充电技术的需求日益提高。富士通在一份声明中说:“这项 技术将为手机集合紧凑型无线充电功能以及同时为多个便携式设备充电铺平道路。对多个设备充电时,设备相对于充电器的位置没有任何限制。” 

当前的很多无线充电系统依靠线圈之间的电磁感应,这种方式工作距离太短,设备需要放置在充电座上,同时也会消耗大量电量。富士通的充电系统立基于磁共振,电量可以在以同样频率发生共振的线圈之间进行无线传输。 

测试结果显示无线传输距离大约在15厘米左右,但富士通表示无线传输距离最终可实现几米远。需要指出的是,距离设备越远,传输中损耗的电量越多。富士通的 系统与美国Witricity公司研发的技术类似,后者同样利用磁共振传输电量,传输距离可达到几米远。在日本大阪举行的一场工程学会议上,富士通公布了 这项无线充电技术的细节。