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能读心会走路还能打官司

2017-08-24 14:41:10   中国青年网

能打字就能发信息,由此还能衍生出更多与生活相关的应用。“比如与智能家居的结合,我们可以把ABCD这些键分别改成开灯、关灯、开电视、调音量等提示词,使用者用眼睛看提示词时,家里的电器就可以收到信号作出反应。”杨晨介绍说。

“脑控机器人”虽然不用动手,但对于大脑灵敏度仍有一定要求,受过脑损伤的患者在使用这种机器人时会遇到一定困难。最适合使用这种系统的,是类似渐冻人这样身体机能缺失但大脑功能完好的患者。患者只要眼睛能动,就能在屏幕上完成操作。

会读心思

感知“主人”脑电波操控轮椅

在脑控打字的实验场景中,信号反应、传输等后续步骤都建立在“看清屏幕按键”的前提之上。先不说屏幕看久了眼睛会累,那些本身眼神就不好的人该怎么办?

在华南理工大学脑机接口与脑信息处理研究中心展位,这个问题得到了解答。该中心的成果展示中,测试员戴着黑色脑电帽坐在电动轮椅上,无需任何操作,只凭意念就可以完成轮椅的行进、转弯操控。

“坐轮椅的人是通过想象某种行为来激活大脑的一部分区域,系统再根据这片区域发出的脑电波来指挥轮椅,以此完成动作。整个过程只靠自己去想,没有任何外界提示和刺激。”研究员黄骐云解释道。

原理并不复杂,但真要只凭想象来操控机器并不容易。目前来说,人们只有在想象“活动四肢”时,大脑才可以发出可识别的脑电波信号。这其中,“活动左手”和“活动右手”的脑电波区别较大,可以当作两种信号;而对于“活动左腿”和“活动右腿”,系统很难在脑电波上进行区分,因此只能当作同一种信号。总共算下来,三种信号只能完成三个动作。

虽然目前能发出的控制命令数量有限,成果从实验室走向市场也有一定距离,但黄骐云对于这种“主动想象式”脑控机器人的发展前景还是很有信心。“如果大脑研究领域能有新的突破,可识别的信号种类进一步增加,我们操控机器人可做的动作自然也会越来越多了。”

会双足走

蹒跚“学徒”有望大步追赶世界

机器人是怎么“走路”的?你可能想象不到,在现实生活中,绝大多数机器人都是“轮式”,直立行走对于机器人来说,仍是一个技术难题。

北京钢铁侠科技有限公司是国内首家研发双足仿人机器人的企业,在他们的展台上,充满科技感的仿人机器人用两根绳子固定在架子上。“钢铁侠”联合创始人庄园道出了一个无奈的原因:在双足仿人机器人领域,我国和国际先进水平有着二三十年的差距。国际顶尖的双足仿人机器人不但可以走,甚至能“跑”,而国产机器人却还在蹒跚学步。

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