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Intel Readies for Internet of Things Invasion with Linux

Last month, Intel announced a new family of Internet of Things (IoT) gateways, as well as new Quark and Atom E3800 processors that will run them. Now the chipmaker has unveiled a new IoT Solutions Group that combines its Intelligent Systems Group with resources from subsidiary Wind River. Led by Intel VP and GM Doug Davis, the division will report directly to CEO Brian Krzanich.

The IoT Solutions Group will integrate "intelligent systems hardware, software, services and platform elements" into one organization, says Intel. Despite the growing IoT focus, Wind River's business of selling embedded Linux, Android, and VxWorks development platforms will continue as usual, says Wind River SVP Jim Douglas. So will its cross-architecture support, he adds. Although Wind River's Linux-based Intelligent Device Platform, which incorporates security software from its sister subsidiary McAfee, will be bundled with Intel's upcoming gateway hardware, it will also be available separately for ARM and other platforms.

AtomE3800Most of the Big Data cloud applications required to process Internet of Things data are already in place, says Douglas. What's needed now is what Wind River and its owner Intel are developing with their new IoT gateways: a "fog" platform that sits closer to where the action is. "We need edge management that aggregates data from embedded devices and connects them to the cloud," says Douglas.

The new division will give the embedded team the prominence to make that happen, says Douglas. Embedded has often been an afterthought at Intel, but as the desktop PC business shrinks, Intel is looking to expand into the field, as well as to embedded mobile devices running Android. IoT is attractive since it involves oversight of connected devices running Intel's embedded processors with cloud-based software running on Intel-based servers.

"Embedded has become a very substantial and profitable part of Intel's business, but Intel hasn't done a great job telling that story," says Douglas. "This announcement is an endorsement of the growing role of embedded and IoT."

IoT has been a buzzword for years, but the concept has reached a tipping point in recent months. Earlier this year, Cisco announced a major IoT initiative focused primarily on the enterprise side. Meanwhile, other tech firms have begun rolling out frameworks and software aimed at the IoT market. A few that involve Linux or Android include Ayla Networks' Android focused Ayla Platform and Echelon's Izot stack, which will initially run on a Raspberry Pi.

In many ways, IoT is just another name for low-cost Internet-ready embedded devices. These power-efficient devices are often used to aggegate sensor data on the network's edge. They're increasingly configured for machine-to-machine (M2M) applications, communicating with other IoT devices without human interaction.

IoT is progressing as more devices gain IP addresses and communications capability – typically using wireless technologies like WiFi or ZigBee. IDC projects that by 2020 there will be 26 times more Internet-connected "things" than connected people. Meanwhile, Gartner says IoT will represent $1.9 trillion dollars in economic value by 2020.

The most compelling IoT applications are factory automation, transportation, energy, and smart buildings, says Douglas. Here, IoT gateways connected with Big Data software can "unlock current assets, turn data into information, and help make better decisions," he says. "The idea is to observe the performance of sensors and other embedded devices, then predict that performance, and potentially change it. It should lead to less downtime, more sustainable and efficient operations, and optimized performance."

Wearables, medical devices, and connected refrigerators are coming, but first there are "huge economic gains" to be found in more basic infrastructure. "IoT is the next big shiny thing, and there's a lot of excitement about sexy areas like wearables, but for now the big opportunities are found in the old boring industries," Douglas says.

Intel's two-tier IoT Push: Quark and Atom e3800

Intel's IoT initiative took off in early September with the unveiling of the Quark processor. Each single-core, single-thread Quark measures one-fifth the size and is claimed to use one-tenth of the power of the new "Silvermont" based "Bay Trail" Atom cores. Aimed squarely at IoT, the first of these Pentium ISA compatible chips -- the Quark X1000 -- will begin sampling soon and reach production in early 2014.

Quark's Linux support was clarified in early October when Intel announced an Arduino-compatible, Quark X1000-based single-board computer called the Galileo. The board is supported with an open source Linux OS that includes Arduino software libraries. A lightweight version of Linux is standard, but there's also a more robust flavor available for SD-ready devices.

In October, Intel also announced the embedded version of its latest Atom chips. Intel's Atom E3800 (Bay Trail-I) processors are fabricated with the same 22nm, Tri-Gate Silvermont architecture as the tablet-focused Atom Z3000, but offers even lower 5-10 Watt consumption. Intel is promoting the E3800 and Quark as the two-tier foundation for its new IoT gateways.

Jim DouglasThe intelligent gateways, which incorporate Wind River Intelligent Device Platform software, are designed to aggregate, filter, and share data “from the edge to the cloud,” says Intel. Early customers include smart grid vendor Westfalen Weser Energie, and HVAC vendor Daikin Applied. Daikin is using both Quark and Atom E3800 based gateways for remote HVAC diagnostics, monitoring and control, and energy management.  

Wind River's Intelligent Device Platform, based on its Yocto Project compliant Wind River Linux, includes gateway security and support for wireless and remote device management protocols, including the MQTT M2M protocol. It also provides support for Lua, Java, and OSGi application environments.

The Intel gateways running the software will mostly run on Quark processors at the edge, as well as on Atom E3800 for gateways with more substantial processing requirements. The Atom models, as well as future Intel Core based models, will aggregate data from edge gateways before communicating with cloud-based software. The initial push will be for so-called "Brownfield" deployments where legacy devices running Linux or VxWorks are fitted with wireless capability, but still need help in aggregating data for the cloud, says Douglas.

"That's why we launched on Linux first," he adds. "The higher end devices that can feed into the gateway tend to run Linux, where you have the benefits of open source software and connectivity elements."

IoT can pay off by reducing the cost of remote device monitoring while improving the analytics around that data, says Douglas. In an offshore wind farm, for example, gateways on each row of windmills could aggregate data and send it to the cloud without the cost of sending out a boat or a helicopter, he adds.

ARM wakes up to IoT

Douglas sees a mid-range gap in the current IoT market that Intel can exploit. Companies like Cisco, GE, and IBM are leaders on the high-end enterprise side of IoT, while ARM microcontrollers tend to dominate on the low end. With the Quark and Atom, "You can have more processing at the edge, so you can capture an aggregate of the data and push it to the cloud," says Douglas.

ARM has yet to unveil a comprehensive IoT strategy, but it recently released an IoT white paper [PDF] with The Economist featuring results from a global survey of business executives. Some 75 percent of businesses were said to be actively looking into IoT, and 94 percent of respondents said IoT would have a major impact within three years. Linux-ready ARM processors that might be described as IoT ready include ARM9 cores, such as those found in Atmel's SAM9 processors. Lately, ARM is increasingly pushing Cortex-A5 at the higher end of the IoT spectrum.

ARM's biggest IoT play, however, is with its popular Cortex-M microcontrollers, and to a lesser extent, its Cortex-R chips. These typically run real-time operating systems (RTOSes), or no OS at all. Yet, as the demand for more intelligence and Internet support seeps down into low-power edge devices, Linux is in increasing demand as well.

In late October, ARM announced an embedded version of its ARMv8 architecture that will add virtualization and Linux support to a new generation of Cortex-R processors. The ARMv8-R architecture is 32-bit, yet it borrows features such as hardware virtualization from the 64-bit ARMv8-A found in new Cortex-A53 and -57 processors.

ARMv8-R provides a more sophisticated memory processor unit than found on today's Cortex-R chips. Together with virtualization and other enhancements, this should enable devices like automotive computers to run safety-critical embedded applications that combine RTOSes, bare metal code, and Linux and Android runtimes on a single processor. As with Cortex-M, Cortex-R currently supports only the very minimalist uClinux, but the next generation should support Linux and Android distros with full GUIs, albeit in lightweight versions.

While Linux may still play second fiddle to RTOSes on the Cortex-R, it appears to be the primary OS for Quark, which should also support other RTOSes like VxWorks. Intel has a long way to catch up with ARM on the low end, but its Quark may well fulfill a Linux-ready sweet spot for embedded IoT devices between ARM's microcontrollers and its Cortex-A processors. 



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  • Chris Said:

    Soooooo many buzzwords... My brain hurts...

  • Rod Said:

    Isn't 'fog' just a synonym for a router?

  • IOT enthusiast Said:

    IoT is like teenage sex- everyone is talking about it, but nobody really knows how to do it.

  • rasz_pl Said:

    Poor intel. slept over Android just like Microsoft slept over Internet revolution with early windows. Its too late. Nobody wants $20 x84 400MHz Quark when you can buy $0.3 ARM M0 or $2-5 ARM7 cores.

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