The Embedded Internet lets us observe things about our world that we would otherwise miss. With these observations, we can start to understand the consequences of our actions, and ultimately, make sensible choices for ourselves and for the planet.
In early 1966, Stewart Brand was musing on a point made by Buckminster Fuller: “People act as if the earth is flat, when in reality it is spherical and extremely finite, and until we learn to treat it as a finite thing, we will never get civilization right.” NASA had been putting people in orbit since 1962, yet had not published any pictures of the earth from taken from space. So Brand started a viral campaign, distributing buttons and posters that demanded “Why haven’t we seen a photograph of the whole earth yet?”
His efforts bore fruit. Reports of his campaign was picked up by major newspapers, and in 1968 the Apollo 8 flight gave us the first photographs of the whole earth as seen from space—one of the most famous pictures is shown here.
In Brand’s words:
Those riveting Earth photos reframed everything. For the first time humanity saw itself from outside. The visible features from space were living blue ocean, living green–brown continents, dazzling polar ice and a busy atmosphere, all set like a delicate jewel in vast immensities of hard–vacuum space. Humanity’s habitat looked tiny, fragile and rare. Suddenly humans had a planet to tend to. The photograph of the whole earth from space helped to generate a lot of behavior—the ecology movement, the sense of global politics, the rise of the global economy, and so on.
And yet.
Out of sight, out of mind
As much as I revere Brand’s work, we really haven’t seen the whole earth yet. We are told that the hole in the ozone layer has been getting progressively worse since it was first reported in 1984. Carbon dioxide levels in the atmosphere have been on the rise since 1759. We know these things are happening, but since we can’t “see” them on a daily basis we haven’t done enough to take appropriate action.
It’s human nature: we tend to change our behavior only when we can see the consequences of our actions.
There’s hope. One of the powerful facets of Device Networks is that they let us observe things in our physical world that have been previously invisible. Southern California Edison ran a simple pilot program that used networked Energy Orbs from Ambient Devices that glowed blue when power was inexpensive, green during peak hours, and red during “super peak” periods. The result? Customers cut back on their peak period usage by 40%.
The broad view
Device Networks can act as a “macroscope” over a large geographical area to observe phenomena that would otherwise go undetected. We can construct network sensors that monitor radon levels in thousands of homes in real time and analyze that data to predict earthquakes. We can build a giant distributed weather station by linking rooftop solar panels into the Embedded Internet and deduce the wind speed and direction as clouds’ shadows progressively occlude one panel and the next.
The long view
And sometimes “slow time” is just as important as “real time”. The Embedded Internet’s ability to record and analyze historical data lets us observe changes that occur too slowly for us to notice otherwise. Long term recording and analysis of global temperature data and CO2 levels can tell us much about our impact on our very finite planet. It’s not a coincidence that Stewart Brand was one of the creators of the Long Now Foundation.
By making manifest that which was previously invisible, the Embedded Internet can help us become better stewards of our small and precious planet.
copyright © 2008 nbt ventures, all rights reserved
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May 26, 2008
Nearly every post in this Embedded Internet blog is implicitly or explicitly about Device Networks, so we offer this definition:
Device Networks are communication networks that link unattended physical objects to each other and to other networks and allow us to sense, control, identify or locate those objects.
It is easier to discuss Device Networks after describing two other familiar networks: Computer Networks and Voice Networks.

Computer Networks
Nearly everyone understands what we mean by computer networks — these are the high-speed digital networks that link our laptops, desktop computers and file servers. Computer Networks carry the massive torrents of data that serve us our e-mail, web pages, streaming audio and YouTube posts of chihuahuas on skateboards. In computer networks, TCP/IP and UDP are the dominant communication protocols and speed is the most important figure of merit: faster is always better.
Voice Networks
We are all equally familiar with voice networks, which link everything that starts or ends at a telephone handset. Back in the 20th century, most voice networks were made of copper wires carrying circuit-switched analog signals, but those have largely been replaced by packet-switched digital signals carried over wires and fiber optic cables or, increasingly, carried over wireless cellular networks.
We are seeing a wonderful blurring of voice networks and computer networks: Office buildings are now outfitted with telephone systems that use VOIP (Voice Over Internet Protocol), in which voice traffic is stuffed into TCP/IP packets and shunted over standard computer networks. And content originating from file servers — such as web pages, digital music, satellite radio — is being delivered directly to our mobile handsets The dominant figure of merit for voice networks is availability — you want your handset to be connected no matter where you are.
Device Networks
Which brings us to our definition of device networks: Device Networks are communication networks that link unattended physical objects to each other and to other networks, allowing us to sense, control, identify or locate those objects. Device networks are often wireless, but there are many examples of wired device networks.
Device networks have gone by many names including: Wireless Sensor Networks; Active RFID; Machine-to-Machine (M2M); the “X-Internet”; Real-Time Location Systems (RTLS); Supervisory Control And Data Acquisition (SCADA); Real-Time Process Control and a host of others. The label of choice depends upon the application or upon market researcher discussing it.
Device Networks normally have neither the high-bandwidth requirements of Computer Networks nor the low-latency requirements of Voice Networks. But all Device Networks, regardless of application or underlying technology, must be unimpeachably autonomous and able to function dependably under a broad range of conditions without human intervention. Device Networks must either never break, or if they do break, they must have the means to repair themselves.
copyright © 2008 nbt ventures, all rights reserved
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May 14, 2008
Moore’s “Law” – which predicts a halving of the cost per transistor every 18 months – has remained remarkably accurate over the last four decades, yet there are those who claim that it is about to come to an end.
Proclaiming the demise of Moore’s Law is nothing new – it has been a perennial pastime of pundits. But they were wrong before, and they’re still wrong.
To write an obituary for Moore’s Law either indicates a lack of understanding of Gordon Moore’s original claims or a needlessly narrow view of its implications. A broader interpretation – predicting an exponential reduction in the cost of computing over time – is as robust as ever and shows no signs of abating. (more…)
May 12, 2008
We started this journey over ten years ago at the MIT Media Lab, when a bunch of us started marrying microcontrollers with short-range radios and inventing networking algorithms that allowed them to talk to each other.
We built stuffed penguins that recognized where they were and would talk to you about it. We built meshed wireless sensor networks for measuring microclimatology on Hawaiian islands. We built colorful glowing orbs that communicated with their neighbors and all changed colors when any one was touched. We even built a digital whoopee cushion into the chair of the department head that caused his computer to do “interesting” things when he sat down.
These were all early examples of Device Networking — giving everyday, autonomous objects (toy penguins, weather stations, orbs, Steelcase chairs) a link to each other and a voice on the internet. And though some people thought we were a little crazy to talk about networking streetlamps and making wireless light switches, our reasoning was clear: microcontrollers would continue to become more powerful and cheaper, and the imperative to network these small islands of computation would become only stronger.
Today, our reasoning appears to have been exactly on target. There has been a proliferation of wireless protocols designed to link “things” rather than high-speed computers, and you can even purchase processors with on-board radio links that run these protocols from Digikey, the mecca of all things electronic.
We’re here to “give voice to a billion things”, to foment the ongoing development of Device Networking and to catalyze the growth of the Embedded Internet. Considering that the number of microcontrollers manufactured each year exceeds the world human population, it’s a good place to be.
Welcome.
Note: The author gratefully acknowledges Elizabeth Corcoran of Forbes Magazine for the title of this blog entry, appropriated without permission from http://www.forbes.com/forbes/2004/0906/144d.html.
copyright © 2008 nbt ventures, all rights reserved
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May 5, 2008