www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
Business / Technology

Smells are smart sensors' last frontier

(Agencies) Updated: 2016-07-04 07:25

Smells are smart sensors' last frontier

Staff from Midea Group show how its smart kitchen works at an international electric home appliance expo in Berlin, Germany. [Photo/Xinhua]

Phones or watches may be smart enough to detect sound, light, motion, touch, direction, acceleration and even the weather, but they can't smell.

That's created a technology bottleneck that companies have spent more than a decade trying to fill. Most have failed.

A powerful portable electronic nose, said Redg Snodgrass, a venture capitalist funding hardware start-ups, would open up new horizons for health, food, personal hygiene and even security.

Imagine, he said, being able to analyse what someone has eaten or drunk based on the chemicals they emit; detect disease early via an app; or smell the fear in a potential terrorist. "Smell," he said, "is an important piece" of the puzzle.

It's not through lack of trying. Aborted projects and failed companies litter the aroma-sensing landscape. But that's not stopping newcomers from trying.

Like Tristan Rousselle's Grenoble-based Aryballe Technologies, which recently showed off a prototype of NeOse, a hand-held device he says will initially detect up to 50 common odors. "It's a risky project. There are simpler things to do in life," he said candidly.

The problem, said David Edwards, a chemical engineer at Harvard University, is that unlike light and sound, scent is not energy, but mass. "It's a very different kind of signal," he said.

That means each smell requires a different kind of sensor, making devices bulky and limited in what they can do. The aroma of coffee, for example, consists of more than 600 components.

France's Alpha MOS was first to build electronic noses for limited industrial use, but its foray into developing a smaller model that would do more has run aground. Within a year of unveiling a prototype for a device that would allow smartphones to detect and analyse smells, the website of its US-based arm Boyd Sense has gone dark. Neither company responded to emails requesting comment.

The website of Adamant Technologies, which in 2013 promised a device that would wirelessly connect to smartphones and measure a user's health from their breath, has also gone quiet. Its founder didn't respond to emails seeking comment.

For now, startups focus on narrower goals or on industries that don't care about portability.

California-based Aromyx, for example, is working with major food companies to help them capture a digital profile for every odor, using its EssenceChip. Wave some food across the device and it captures a digital signature that can be manipulated as if it were a sound or image file.

But, despite its name, this is not being done on silicon, says CEO Chris Hanson. Nor is the device something you could carry or wear. "Mobile and wearable are a decade away at least," he said.

Partly, the problem is that we still don't understand well how humans and animals detect and interpret smells. The Nobel prize for understanding the principles of olfaction, or smell, was awarded only 12 years ago.

"The biology of olfaction is still a frontier of science, very connected to the frontier of neuroscience," said Edwards, the Harvard chemical engineer.

That leaves startups reaching for lower-hanging fruit.

Snodgrass is funding a startup called Tzoa, a wearable that measures air quality. He said interest in this from China is particularly strong. Another, Nima, raised $9 million last month to build devices that can test food for proteins and substances, including gluten, peanuts and milk. Its first product will be available shortly, the company said.

For now, mobile phones are more likely to deliver smells than detect them. Edwards' Vapor Communications, for example, in April launched Cyrano, a tub-sized cylinder that users can direct to emit scents from a mobile app-in the same way iTunes or Spotify directs a speaker to emit sounds.

Japanese startup Scentee is revamping its scent-emitting smartphone module, said co-founder Koki Tsubouchi, shifting focus from sending scent messages to controlling the fragrance of a room.

There may be scepticism-history and cinemas are littered with the residue of failed attempts to introduce smell into our lives going back to the 1930s-but companies sniff a revival.

Dutch group Philips filed a recent patent for a device that would influence, or prime, users' behaviour by stimulating their senses, including through smell. Nike filed something similar, pumping scents through a user's headphones or glasses to improve performance.

One day these devices will be commonplace, said Avery Gilbert, an expert on scent and author of a book on the science behind it, gradually embedding specialised applications into our lives.

"I don't think you're going to solve it all at once," he said.

Hot Topics

Editor's Picks
...
主站蜘蛛池模板: 深夜爽爽爽gif福利免费 | 免看一级一片一在线看 | 欧美三级在线观看不卡视频 | 日韩毛片高清在线看 | 一品道一本香蕉视频 | 一区二区网站在线观看 | 亚洲成人看片 | 久久99一区 | 欧美一级高清在线观看 | 99久久久免费精品免费 | 欧美大片无尺码在线观看 | 亚洲国产精品综合久久 | 99在线精品免费视频九九视 | 欧美一及片 | 免费99热在线观看 | 中文字幕在线观看一区二区 | 久久久国产一区二区三区丝袜 | 亚洲欧美日韩中文字幕在线一区 | 亚洲国产欧美在线不卡中文 | 操美女大逼视频 | 国产成人黄网址在线视频 | 久久99精品九九九久久婷婷 | 国产午夜免费不卡精品理论片 | 精品9e精品视频在线观看 | 欧美一级毛片在线观看 | 久久院线 | japanese色系国产在线高清 | 2022年国产精品久久久久 | 俺来也欧美亚洲a∨在线 | 99精品视频在线观看re | 欧美一级精品高清在线观看 | 国产在线精品一区二区三区不卡 | 综合亚洲精品一区二区三区 | 日本s色大片在线观看 | 亚洲国产成人久久综合碰 | 久久99亚洲精品久久久久 | 三级a黄 | 特级一级毛片免费看 | 国产免费久久精品99re丫y | 欧美一级视频在线高清观看 | 996热这里有精品青青草原 |