2014年6月8日 星期日

Internet of Things: it's all coming together for a tech revolution

Internet of Things: it's all coming together for a tech revolution

Imagine if your kitchen scales could advise you about nutrition or if your lavatory could tell you to see a doctor. The Internet of Things is making these ideas possible, but at what price?
Jawbone
Fitness trackers : Jawbone recently filed a patent for a method of measuring body fat percentage using smartphones. By sending impulses from the phone using its vibrate feature, the device would wobble your fat, measure the frequency of the wobbles and so allow it to determine your body fat percentage. This could then be used to create a more tailored fitness regime.
The Internet of Things may be one of the clumsier neologisms to have emerged in recent times, but that has seemingly done nothing to slow its growth. For those unfamiliar with it, the Internet of Things (also known as M2M or machine to machine) refers to an expanding network of interconnected internet-enabled devices. Driven by miniaturisation, the affordability of components such as cheap Bluetooth sensors, and the growing ubiquity of technologies such as Wi-Fi, it is now possible to connect devices in a way that would never have previously been thought possible. While still in its "early adopter" infancy, some estimates suggest that by 2020 there will be in the region of 50bn IoT devices – all talking with one another on a constant basis.
"Consumers are beginning to realise that this technology isn't an outlandish, futurist concept coming to life from The Jetsons but in fact can be used efficiently and effectively to solve everyday problems," says Alex Hawkinson, CEO of home automation company SmartThings. "The top-use cases have to do with security, peace of mind and savings. For example, consumers can be notified when a door is opened or there is motion while they're away. They can be notified when there is moisture in the basement and they can programme the lights and heat to turn off when no one is present in the house, which can mean huge energy savings."
Already tech giants are getting involved, viewing this as a logical progression from the personal computer and smartphone races of previous decades. At its Worldwide Developers conference (WWDC)event last Monday, Apple introduced Homekit, an Internet of Things platform that will co-ordinate various third-party home automation accessories, allowing you to unlock your doors or turn on and off your lights via your iPhone.
Google, too, demonstrated its interest by paying $3.2bn (£1.9bn) earlier this year to buy Nest Labs, a home automation company co-founded by the creator of the iPod. Already well known for its connected thermostats and smoke detectors, Nest is currently investigating a slew of other applications related to the home – everything from health tracking to security systems.
ToothbrushThis Bluetooth-enabled, Kickstarter-funded toothbrush made by French startup Kolibree will calculate and rate your brushing style, keep track that you’ve found all the right places and provide you with real-time feedback. The firm suggests you can transform otherwise boring dental hygiene activities into a competitive family game.
What unites products as seemingly disparate as driverless cars and fitness-tracking wearables such as the Jawbone UP is their ability to collect data from, and on behalf of, their users.
"When people talk about the Internet of Things, they tend to get hung up on the 'things' themselves," says Ian Foddering, chief technology officer and technical director at Cisco UK and Ireland. "Actually, the real value and insight comes from the data that these devices provide. We're just at the tip of the iceberg when it comes to what is possible in terms of data extraction. It's a very exciting time."
"Data empowers us," says Renee Blodgett, vice president of marketing and strategy at Kolibree, the world's first connected electric toothbrush(yes, really!). "For the first time, we have data on how we brush our teeth, where we brush our teeth and where we need to improve. Before now, we would only get that feedback from our dentist once a year when we have our annual cleaning. Now, we can get that feedback in real time."
While marginal gains in toothbrushing might not sound like much, the overall point about the power of big data is certainly valid.
Entrepreneur and former Apple employee Mike Grothaus agrees. Earlier this year, Grothaus successfully used a Kickstarter campaign to create SITU, a set of kitchen scales that relays data about nutrition to your iPad. Such was the demand for SITU that the project received almost 30% of its funding in the first day alone.
"It's a revolution," Grothaus says of the burgeoning connectivity. "It won't be as flash or obvious as the smartphone revolution, but it will be more profound because it connects everything together."
But if the Internet of Things is revolutionary, it is also, in a sense, evolutionary.
"In the early 20th century, all sorts of devices and objects became electrical," says Rafi Haladjian, founder of Sen.se and an IoT pioneer. "Irons, kettles and washing machines all used to be mechanical; then suddenly this great new technology came along. The same thing is happening today."
Nest thermostat Smart thermostat : the Nest thermostat in your home learns your preferences and automatically adjusts itself to the correct temperature, enabling users to save money and energy. Connected to a smartphone app, it also lets users control the thermostat when on the go.
What differentiates Internet of Things devices from the PCs, tablets and smartphones that came before them is their invisibility. The likes of Kolibree or SITU come with no screen or traditional input device such as a keyboard. "The most profound technologies are those that disappear," wrote Mark Weiser, the chief technology officer of Xerox PARC, in the early 1990s. "They weave themselves into the fabric of everyday life until they are indistinguishable from it."
Sometimes, these devices are indistinguishable from the world around them on account of their sheer scale. Fritz Lang's 1927 silent movie Metropolis depicted the city as one giant organism, and that is now a possibility in the world of hyper-connected cities, in which even the pipes that carry our water and the roads we drive on contain smart components.
In other cases, it might be that the technologies are so small that we do not readily see them. The dream of those working in the biotech field today is for physical augmentations that constantly monitor our wellbeing – with sensors and microscopic robots in the circulatory system, tracking blood pressure and scanning for early-stage cancers. While we don't yet have all the details about Apple's work in this area, it seems clear that this is the domain innovations such as the just-announced HealthKit (and possibly the forthcoming iWatch) will focus on.
At the moment, people who choose to track and share their data still represent a minority. But while no one is going to force you to wear a connected device (in most jobs), those who do will become increasingly common – and will be incentivised for it. The car insurance companyDrive Like a Girl, for instance, installs on-board car computers that monitor your driving and offers cheaper premiums to those drivers who prove less likely to have an accident. "We use the latest telematics technology to give girls the fair price they deserve, not because they are female, but because they are safer drivers," the company's website states. "With telematics, they can prove it."
Perhaps more intrusive is the idea of an Internet of Things-enabled lavatory, which uses sensors inside the bowl to sample your stool and provide health-related insights. By testing urine, these sensors might be able to detect hormone changes in a woman and advise if she is pregnant. It could similarly look for bacterial infections and suggest whether you can stick to Pepto-Bismol or should seek medical advice. If neither of these sounds enough of an incentive to ditch your lavatory for one with its own Twitter account, you may be in the minority: a recent survey suggested that 70% of people would be willing to share data from their lavatory if this could lead to healthcare savings.
In a post-Edward Snowden world, the Internet of Things will raise questions about privacy. Freedom through surveillance is a remnant of George W Bush's America. Now, however, that same ideological stance extends to our gadgets. As always, this isn't a straightforward equation – a panopticon effect in which we are monitored by a faceless watchman and receive nothing in return.
IoT devices offer new ways for us to take control of our lives, but also paradoxically cede that same control. It is here that a techno-sceptic likeEvgeny Morozov enters the frame. In his latest book, To Save Everything, Click Here, Morozov takes issue with what he terms "solutionism": the idea that everything from obesity to global warming can be solved with the aid of a few interconnected devices. Viewing self-tracking as the epitome of the "modern narcissistic quest for uniqueness and exceptionalism," Morozov pointedly asks why anyone would want to turn every aspect of their lives into a "temple of surveillance."
Will these concerns be enough to put people off using such devices? Concerns have already been raised about the implications of Google's expansion into the IoT field since its purchase of Nest Labs – a byproduct of which would be that the Silicon Valley giant would hold ever more granular data about its users.
Beyond this are issues about security – such as what would happen in the event that our devices were hacked by someone with the ability to shut off our water supply, or take control of our cars, or unlock the doors of our houses from thousands of miles away. For those working in the field, however, these are temporary concerns, which can be addressed with the right amount of planning.
"There is no reason why organisations today should not have a robust end-to-end security policy," says Cisco's Ian Foddering. "It is something that needs to be considered, but I think these are all concerns that can also be addressed today."

Q&A: Chip designer Ian Ferguson

How is the Internet of Things going to change the world?
We're going to see more technology that's woven into the fabric of the planet – whether it's intelligent lighting systems or microcontrollers in parking spaces so you can detect whether the space is available using your smartphone.
How has this affected ARM's business?
Our business works by licensing technology, primarily processors [including to Apple], meaning the intelligence that is in a smartphone or the braking system of a car, for example. We want to provide the technology that makes it as easy as possible for companies to get connected products into the marketplace.
What's been responsible for the recent surge of interest in this area?
First, there are so many smartphones, companies can think about providing technology that uses that technology as a way of connecting – whether that's a fitness band or Google Glass or a smartwatch. Second, we've seen innovative groups such as the "maker" community come together to connect things to the internet in innovative ways. Crowdfunding platforms such as Kickstarter have helped build and test all kinds of connected devices.
Apple has its new HomeKit platform for co-ordinating home automation accessories using the iPhone. What does this mean for a company such as Apple?
If you look at what Apple does very well, it has an App Store that gets software developed for iOS. When I consider what is going to be important in the consumer space, it's about getting Internet of Things applications developed for various devices. Just having something connected to a phone doesn't really help – it's all about what you do with the data. You need a means of connecting all these devices together.
What do you see being the big ethical questions involved with this?
Security is a big one. For us as ARM, better security means more CPU intelligence, which potentially increases the cost of a device – or else lowers how long it might last on a single battery charge. We need to continue to look at how we evolve to let people still build compelling technology within cost, energy and security expectations. LD
Ian Ferguson is vice president at ARM

2014年6月4日 星期三

忘記雲計算吧 霧計算 Fog Computing是未來

 

Fog Computing, Ecosystem, Architecture and Applications ...

www.cisco.com/web/about/ac50/ac207/crc_new/.../rfp13078.html
Fog Computing is a paradigm that extends Cloud computing and services to the edge of the network. Similar to Cloud, Fog provides data, compute, storage, and ...
 
 
2014年 05月 29日 11:25

忘記雲計算吧 霧計算是未來


和
所有你遇到的人一樣,我也對云計算的變革力量深信不疑。智能手機不斷搜尋和取回數據,但沒有云就失去了意義;我還認為,如果企業不抓緊將數據和軟件推送到第三方數據中心的話,可能會面臨被未知競爭對手破壞的風險。

但云計算的倡導者一向津津樂道,未來某日一切計算都會轉移到云端。很多公司都是基于這個理念向你兜售云業務。

現實情況是:數據輸入導出云端的難度,要高于大多數工程師或至少他們的管理者所愿意承認的程度。

問題出在帶寬上。如果你的公司只想減少自己存儲數據的成本和麻煩,那么云端就是最佳選擇,你所需要做的就是通過高速網絡來回傳輸數據。

Brian Ajhar
但 在處處連接的的世界,人們需要通過大量移動設備獲取信息,帶寬就變得相當緩慢。任何需要向移動設備傳輸數據的業務,無論是用戶預訂機票的系統或是移動銷售 人員所用的業務數據,都會面臨著無線網速的難題。總體來說,按照世界經濟論壇(World Economic Forum)的統計,在每位用戶獲取的寬帶方面,美國僅排名全球第35名。

這也是現在移動應用成為人們上網做事首要途徑的一個原因,至少在智能手機上是如此。部分數據和處理性能是在你設備上完成的。

隨著越來越多的物體變得智能,或者能夠感應所在環境,接入互聯網,甚至遠程接受指令,我們在依賴云端的時候,如何完成我們需要處理的工作就變得日益突出。從飛機引擎到冰箱的一切物體都在加入無線網絡,組成了物聯網。

現在的3G與4G手機網絡速度不夠快,無法實時將設備生成的數據傳輸到云端。而隨著家庭和辦公室的所有普通用具都加入進來,情況只會越來越糟。

幸好還有明顯的解決之道:不再專注于云端,而開始尋找方案,由用具本身或者介于用具與網絡之間的設備來承擔存儲和處理物聯網生成數據流的任務。

思科系統(Cisco Systems)的市場營銷人員已經為這種現象取了一個名字:霧計算。

我喜歡這個詞。是的,這會讓你想效仿美國電視明星麗茲‧勒蒙(Liz Lemon)翻個白眼。但就像此前的云計算一樣,這也是對某種正在到來現象的營銷術語,這是一個不錯的視覺隱喻。

云在天空飄浮,高高在上,遙不可及,刻意抽象;但霧卻現實可及,就在眼前。它并不由性能強大的服務器組成,而是由性能較弱、更為分散的各類功能計算機組成,滲入到電器、工廠、汽車、街燈以及我們物質生活中的所有用品。

思 科銷售路由器,這或許是科技行業除了存儲之外最平淡無奇的業務。為了讓路由器變得更有吸引力,并在中國對手影響其當前營收流之前打開新市場,思科希望把他 們的路由器變成收集數據和進行決策的樞紐。按照思科的設想,其智能路由器永遠不會和云端對話,除非不得已為之;例如在一輛布滿傳感器的軌道車出現意外時, 及時提醒操作人員。而路由器則在軌道車上扮演著神經中心的作用。

IBM也有類似的項目,推動計算“邊緣化”。如同IBM高管保羅‧布羅迪 (Paul Brody)所說,推動傳統基于云的互聯網“由內而外”。(當人們討論邊緣計算時,從字面意思來看,這指的是網絡邊緣,即互聯網與現實世界的交界處。數據 中心是網絡的“中心”,而個人電腦、電話和監控攝像頭則處在邊緣。)

正如云端包括服務器集群,在IBM的研究中,霧包括了所有圍繞著我們、相互關聯的計算機。舉例來說,要求我們的智能設備彼此發送軟件更新,而不是通過云端中轉,這就可能讓霧直接替代云端的某些功能了。

最 主要的是,我們擁有太多的數據。而我們才剛剛起步。飛機就是一個最好的范例。新的波音(Boeing) 747飛機上,幾乎每個部件都與網絡相連,不斷記錄關于其狀態的數據流,或在某些情況下發送這些數據流。通用電氣(GE)表示,一架飛機的一個噴氣引擎就 可以生成512GB(1TB的一半)的數據。

廉價的傳感器生成大量“大”數據,而且這些數據的價值出乎人們的意料。通過所謂的預判分析,使通用電氣這樣的公司甚至在飛機著陸之前就可以知道,噴氣機引擎的哪個部分需要維護。

如果不是這樣,谷歌(Google)和Facebook為什么會討論利用氣球和無人機等等的替代上網方案?現在的運營商不能滿足需求。在美國擁有本該具備的高速無線和有線網絡之前,讓運算盡可能接近用戶,正成為讓物聯網反應迅速、實際有用的關鍵所在。

大部分企業運算的未來一部分仍會留在云端,但未來的真正變革性運算會在哪里?它將來就在這兒,在我們身邊的物體上——就在霧中。

Christopher Mims