Energy Efficient Lighting

TAG | internet of things

Jul/17

11

Sainsbury’s adds IoT capability in plan to go all-LED

The plan will make the company the first grocery retailer in the UK to power all its supermarkets entirely by LED lighting.

Some 250,000 luminaires will be retrofitted in 250 superstores in the next three years in addition to those already installed during the company’s ongoing roll-out.

The new fixtures are part of a deal with Current, GE’s low-energy technology supplier, which will see energy used by the lighting reduced by 58 per cent.

Sainsbury’s sustainability chief Paul Crewe says  customers expect the retailer to do the right thing on their behalf. ‘They can be reassured that, day or night, when they visit a Sainsbury’s supermarket, we’ve made a significant in-road into creating a greener supermarket for them.’

The lighting retrofit also opens the door to future digital collaboration between the two companies.

The lighting could also be used as a platform for sensors and beacons, allowing interaction with customers. GE’s Predix Internet-of-Things network can transform the lighting into a smart digital infrastructure that uses data and analytics to optimise energy usage, employee productivity and customer interaction.

Sainsbury’s sustainability chief Paul Crewe told Lux: ‘We’ve almost halved the carbon emissions of our stores since 2005, and in the last 12 months we’ve reduced our electricity use by 11.6 per cent despite growing our operation by 54 per cent’.

‘Our customers expect us to do the right thing on their behalf, and they can be reassured that, day or night, when they visit a Sainsbury’s supermarket, we’ve made a significant in-road into creating a greener supermarket for them.’

The project will support Sainsbury’s Sustainability Plan, which calls for carbon emissions by be cut by 30 per cent from 2005 levels. The target has spurred numerous energy efficiency and renewable energy initiatives across its many UK stores, from LED retrofits to solar panels, biomass boilers and ground source heat pumps.  To date, Sainsbury’s has already cut absolute carbon emissions by more than 20 percent and is on track to achieve its 2020 target.

Current is delivering the massive lighting retrofit as a turnkey service, embedding financing with lighting design, product supply, installation and project management services.

LUX VIDEO REPORT: THE BIG SAINSBURY’S LED ROLL-OUT

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Jun/17

6

Top US lighting firm bets the house on IoT

Acuity Brands is placing its faith in the Internet of Things as the future of lighting, by making a major investment in the technology.

The company is hoping to expand its catalogue of IoT offerings, by bringing luminaires and building management controls together.

IoT sensors implanted in LEDs have the ability to collect analytical information on the behaviour of the people that use a building, offering information on how long people stay in a room, for example, and during what hours of the day.

Acuity has devised software that  will offer an array of capabilities, including indoor positioning, asset tracking, space utilisation, spatial analytics and energy management.

The company unveiled its new product, Atrius, at Lightfair in Philadelphia, which, the firm hopes will advance Acuity’s IoT products, making them much more sensory.

‘Lights are installed throughout most of our indoor and outdoor spaces. In addition, lights are powered and connected, and with the emergence of LED lighting, they now feature onboard intelligence.’

Greg Carter, vice president and general manager of Atrius

The product can help employees find available meeting rooms, empower travelers to navigate busy airports, guide shoppers to a specific product on a store shelf or permit a retailer to receive an alert that a customer needs sales assistance.

‘Lights are installed throughout most of our indoor and outdoor spaces. In addition, lights are powered and connected, and with the emergence of LED lighting, they now feature onboard intelligence,’ commented Greg Carter, vice president and general manager of Atrius.

‘That’s why we believe LED lighting is the best and least expensive infrastructure for delivering a sensory network that feeds IoT platforms to connect systems, spaces and people.’

Atrius IoT applications utilise LED lighting infrastructure rather than requiring additional equipment like stand-alone beacons or dedicated IoT networks, bringing a faster return-on-investment.

As IoT technology improves, upgrades are simple and cost effective. Further, the conversion of conventional lighting to LED lighting can provide the energy savings to help fund evolving IoT capabilities.

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Apr/17

10

Has Amazon conquered lighting control by stealth?

Amazon’s voice technology ‘Alexa’ forms the backbone of the firm’s Echo platform, but Alexa is also finding its way into a string of third party innovations.

The Amazon Fund have invested in a number of start-ups that aim to improve voice technology used in the home. The Fund  has already invested  in firms such as Musaic, a smart HiFi that allows users to integrate lighting with their playlists.

Amazon has launched a $100 million strong fund to fuel voice technology innovation, with the intention of ensuring it becomes the key tool used in home lighting control.

Named the Alexa Fund after the voice that assists users on the company’s Amazon Echo platform, the venture capital stream aims to fundamentally improve the way that people use voice technology, including to control lighting.

The Alexa Fund will offer financial help to independent developers and device-makers who wish to advance voice technology, be that through creating new Alexa capabilities, or by expanding the boundaries of voice technology through development and research.

As part of the Fund, Amazon has launched the Alexa Accelerator, which aims to encourage start-ups to bring their voice technology aspirations into a concrete reality.

Companies are chosen after a rigorous selection process and are then invited to take part in a 13-week program in Seattle, where they get the opportunity to work with leading technologists and product leaders from Amazon and Techstars.

The Alexa Fund has already helped a number of start-ups, including Musaic, a voice activated, wireless HiFi system that allows users to integrate smart lighting to react to a particular playlist or song.

Amazon were not present at the Consumer Electronics Show in the US last year, but Alexa could be found in numerous third party innovations that the company has invested in.

The Fund has also invested $35 million in the smart thermostat system Echobee, £5.6 million in the Alexa powered video intercom Nucleus and has made a further million-dollar investment in Rachio, a smart sprinkler system.

The Alexa Fund has been labelled as a ‘stealth takeover’ of the smart home market by Amazon and it is possible that future smart lighting apps and devices may be developed with Amazon money.

At major technology shows, such as the Consumer Electronics Show in the United States, Amazon were not obviously present. However, Alexa technology could be found in numerous third party devices from lighting systems, to home security cameras and cars.

Nevertheless, despite Amazon’s surreptitious attempts to conquer the smart lighting market, the company does face stringent opposition from the likes of Apple’s Homeworks, Google’s upcoming Brillo and Samsung’s SmartThings.

But for now, Amazon is the logical choice for third party Internet of Things start-ups looking for investment and that doesn’t look likely to change any time soon.

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Jan/17

12

Lighting industry needs to ‘wake up’ to IoT hack threat

Ken Munro, the UK’s leading ‘ethical hacker’ speaking at this year’s LuxLive

Companies are simply not doing enough to improve IoT security, security experts are warning.
The UK’s leading ethical hacker has warned that the lighting industry needs to ‘wake up’ when it comes to Internet of Things (IoT) security, or risk the technology being turned into a Trojan Horse for hackers.
‘Lighting venders need to wake up and realise that what they are doing could be very insecure,’ Ken Munro, the UK’s leading ethical hacker told Lux in an interview that you can view below.
IoT is viewed by many as being the lighting industry’s savior as revenues from luminaires start to decline. However, as companies rush to get IoT products to market, Munro fears that cyber security is being rushed for the sake of making a quick buck.
‘We’re opening Pandora’s Box, we are starting to see huge amounts of IoT devices being developed that are vulnerable and I don’t think it will be too long before we see another big story about IoT devices being hacked. We are turning the internet against us,’ Munro continued.
In October last year hackers hijacked thousands of IoT devices, including smart lights, in a denial of service attack that crashed some of the world’s biggest websites including Spotify, PayPal and Twitter. This was just one of a number of high profile hacks that was seen in 2016.
The security expert advised that lighting manufactures should ensure that the mobile application that controls an IoT lighting product is written securely.
‘Don’t forget that when you are making an IoT product, you are selling it to consumers and to hackers. A hacker will take apart your device, look at your chip set and try to extract the firmware, which is the software that runs on the chips. If that is not written securely the product can be easily hijacked,’ Munro told Lux.
IoT is expected to grow significantly over the next decade. A survey carried out by Accenture, the global professional services firm, found that thirteen percent of consumers currently own an IoT device, by 2019, this expected to rise to 70 percent.
Watch Lux’s full interview with Ken Munro below:

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Nov/16

8

Limp IoT security crashes world’s leading websites

Earlier in the month internet provider OVH was targeted in an attack that involved the manipulation of 150,000 IoT devices

Some of the world’s top websites were taken offline due to a recent DDoS attack that was carried out by hijacking IoT devices.

Hackers harnessing Internet of Things (IoT) devices, including smart lights, have crashed some of the world’s biggest websites including Spotify, PayPal and Twitter.

It is no secret, as revenues from LEDs fade, that the lighting industry is placing a big pile of gambling chips on the success of the Internet of Things, but the hack marks the second major security breach in as many months, suggesting IoT is not yet ready for the big leagues.

A handful of the world’s top websites were targeted during the attack, including The New York Times, CNN and Amazon, making this the most high profile attack to date and one aimed at disrupting the very fabric of the internet in the United States.

The attack was carried by hijacking thousands of IoT devices, which had previously been infected with malicious code allowing attackers to take control of them. The attackers were then able to perform a denial of service (DDoS) by getting the enslaved devices to flood the chosen websites with messages, causing them to crash.

While a claim of responsibility is yet to be made for the attacks, it has been claimed on Twitter that WikiLeaks were responsible.

A tweet issued by WikiLeaks after the DDoS attack on some of the world’s leading websites.

Earlier in the month American internet provider OVH was targeted in an attack that involved the manipulation of 150,000 IoT devices.

‘Companies are simply not doing enough to improve IoT security and there is a lack of awareness and a certain laziness in their attitude towards the issue,’ Ken Munro of ethical hacking firm Penetration testing and security services, which identifies weaknesses in internet security, told Lux.

‘Companies are simply not doing enough to improve IoT security and there is a lack of awareness and a certain laziness in their attitude towards the issue.’

Ken Munro – ethical hacking firm – Penetration

The IoT powered onslaughts are worsening because of the release of the Mirai botnet source code into the public domain. The code contains the necessary information needed to hack into IoT devices and ultilise them for use in DDoS attacks.

Security experts are worried that IoT devices are being built upon outdated operating systems using code that has not been properly tested for security loopholes, which hackers will exploit. The devices are then being rushed to market.

Munro believes that IoT manufacturers need to act now to prevent much more serious security breeches in the future.

‘Governments are becoming more and more concerned about the security risks that IoT poses, and the UK, US and EU governments are even considering legislation to compel firms to act,’ Munroe concluded.

The US Congress, for example, is currently mulling installing some kind of consumer protection into law to protect IoT consumer’s privacy, although talks are still at a very early stage, calls to act though are likely to speed up after this latest attack.

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Oct/16

6

Aurora, British Gas push smart lighting into the home

A familiar face: One of the latest entrants in the residential IoT lighting market already has already been on the premises of over 14 million homes. It’s the UK’s leading power utility, British Gas. [Pic: Nissan]

British Gas, the UK power utility that is blazing smart home trails with its Hive connected heating system, is now staking a claim to the residential smart lighting market by adding LED lamps to the system, a move that could signal the arrival of other major utilities into the home smart lighting arena.

Through a partnership with LED company Aurora Group, British Gas in June began offering intelligent Hive-branded LED bulbs that tie into the Hive home internet hub, allowing users to wirelessly turn lights on and off and brighten and dim them from anywhere via an app. Last week, it beefed up the offering with bulbs that will change colours and colour temperature.

The LED lamps, supplied by Aurora, are the latest addition to the ever-expanding Hive ecosystem. British Gas – the largest power utility in Britain – launched Hive Active Heating in July 2015 to allow customers to control heating and hot water from computers and gadgets either at home or from around the world. Early this year it added ‘smart plug’ and ‘smart sensor’ products; the plug lets nervous users switch off an outlet if they fear they’ve left the iron on, and the sensors send alerts if they detect motion through a door or window.

Lighting – called Hive Active Light – now fits neatly into the same scheme. Traveling users can, for example, schedule lights to switch on and change brightness as a burglar deterrent. Or they can do the same for their own mood and comfort when they’re at home. A new Hive bulb from Aurora now lets users change colours. Another lets customers tune the colour temperature of white light, in line with the emerging field of ‘circadian lighting’ in which blue-tinged white light can help stimulate people, and red-tinged white light can foster relaxation.

The new products follow on the heels of Hive allowing users to control the Aurora lights with verbal commands using Amazon’s Echo hardware and Alexa software. Hive also works with the ‘if this then that’ tool from service company IFTTT, which lets users program lights to trigger or respond to other things. Clearly, Hive has move beyond its heating roots.

‘Although we started out by launching our smart thermostat, we are more than a central heating business,’ Hive product and commercial director Tom Guy told Lux. ‘For some, the benefits of smart lighting will be about the peace of mind that, while you’re away on business or holiday, you’ve scheduled your lights to come on. For others, it will be about setting the perfect ambience to unwind after a stressful day. For these reasons, smart lighting has the ability to transform people’s experience of the space they live in.’

Guy added that Hive will continue to add functions, and to innovate ways for users to engage with the system. For instance, users can express vocal requests to Amazon’s Alexa in about 80 different phrases germane to the UK , including ‘Alexa, bosh my lights on,’ Guy said.

Internet of Things

It’s all part of the fledging Internet of Things (IoT) in which anything that can be digitised will be for the purposes of improving controls and operations, and of gathering and analysing data.

It is also key to the general beyond illumination movement that is driving the lighting industry in the modern era in which LED lamps are expected to

House calls: Smart lighting has yet to make huge inroads into the home, but that could change with the arrival of the Hive smart bulbs from British Gas and Aurora. (Pic: Hive)

last for a couple of decades and thus deprive vendors of revenue from replacement sales, long their financial bread-and-butter in the days of traditional incandescent lighting.

Although many LED lighting vendors are touting smart lighting, the concept has been slow to catch on in the home, where it has had something of a limited, upmarket niche appeal. One reason is that in many instances users have to purchase expensive starter kits.

Still, smart home lighting appears poised for a breakthrough. In a recent survey, consulting giant Deloitte said that 40 percent of consumers identified lights as an appliance they would most likely replace with a connected device – tying for the lead with thermostats, which also weighed in at 40 percent. Next came security cameras, at 33 percent, followed by security alarms and fridges, at 30 percent each.

And in its recent annual ‘socket survey,’ Sylvania reported that 76 percent of people agree that ‘smart lighting will eventually replace regular lighting.’

Aurora believes that associating with a utility like British Gas, which has direct access to over 14 million homes in the UK, will help kick-start consumers into deploying Internet-connected lighting.

At your service

The partnership also moves Aurora into the realm of a service industry, which is where many modern lighting companies are trying to position themselves in the face of waning replacement hardware sales.

‘They’ve got 10,000 engineers on the road, so in terms of how they engage with their customers, its’ very, very direct,’ said Neil Salt, managing director of Aurora’s IoT division. ‘We’ve always been excited about what the opportunities would be beyond the bulb and the opportunity came along with Hive. They have real opportunity in terms of their scale and the reach into residential. You can’t ignore they’re a significant player in that space. With men on the ground it makes a significant difference in how the adoption curve will be because you have the face-to-face interaction with people.’

The ‘men on the ground’ aren’t selling Hive Active Light per se. But as service and support engineers who install the smart Hive thermostat, they put a human face to the system, and can help warm up users to the notion of adding smart products such as LED lamps. Customers can purchase the Hive-branded, Aurora-supplied bulbs through the Hive website or from a number of UK retailers including John Lewis, Curry’s, Amazon, Maplin and Screwfix. One original, dimmable bulb costs £19, a set of three costs £49, and five costs £79. The bulbs are rated at 806 lumens, nine watts, 25,000 hours and 2700K. Users control them via Apple or Android devices. Signals travel via ZigBee wireless connections.

The new nine-watt ‘cool-to-warm’ colour temperature bulb is priced at £29, £79 and £119 for one, three or five. The bulbs can range from a warm 2700K to a cool 6500K (in the counterintuitive numbers of the Kelvin scale, higher is cooler). Prices for the 9.5-watt full RGB colour bulb are £44, £119 and £179 for quantities of one, three or five.

Hive makes the bulbs available with either of the UK’s standard socket fitting – ‘screw’ or ‘bayonet.’ The bulbs do not require a Hive Active Heating system, but they do require a hub.

It takes two: British Gas supplies ’em, Aurora makes ’em, as the Hive packaging shows. (Pic: Auroa)

The hub is a small square device that looks like a broadband modem. Hive sells a starter kit including one hub and three bulbs for £89, £119 and £159 for the dimmable white, cool-to-warm, and colour bulbs, respectively.

Existing Hive Active Heating users can tie bulbs into their hubs. New users who want heating, lighting and the other Hive products including smart plugs and sensors can buy kits starting at £299 for a hub and heating, one bulb, an indoor motion sensor and either a door or window sensors; £349 includes an extra lamp plus a smart plug.

Customer retention

Although the Hive deal helps cast Aurora as more of a services company, Aurora’s revenues will come strictly from the conventional modus operandi of selling bulbs. Aurora sells them to Hive, which resells them to customers of its energy services.

The alliance with British Gas should help boost Aurora’s push into smart lighting. The Welwyn Garden City, England-based company is a big champion of IoT lighting. CEO Andrew Johnson is also founder and CEO of St. Petersburg, Florida-based IoT lighting start-up Gooee, which makes technology for companies like Aurora to embed in LED bulbs and luminaires. The Hive bulbs do not use Gooee technology, which is currently more geared to the commercial market, and which is not due out until early 2017

For British Gas, if Hive Active Light helps engage customers, it could help offset a decline in its customer base. The company – which claims to be the world’s oldest power utility with roots going back to 1812 – has about 14.5 million accounts, but it has been losing accounts. In the first quarter of this year alone, 224,000 customers bolted to competitors offering incentives for switching suppliers.

While lighting companies morph more into service entities, the Aurora partnership helps turn British Gas – traditionally a services outfit – into one more reliant on hardware sales. That corollary could help offset the monetary hit that utilities stand to take as people increasingly try to conserve energy and become more energy-efficient.

Hubba Hubba: The lights require a hub as pictured above.  (Pic: Hive)

‘They’re in a bit of a dichotomy at the minute as an industry,’ noted Salt. ‘Everyone wants to buy less of what they’re selling – energy. It’s interesting to see when you look globally at energy and utility companies and how they are looking at creating value beyond energy. The lighting industry has its ‘value beyond illumination’ statement. I think every business as a whole, as things get commoditised, as markets change, it’s interesting to see how they adapt. Energy companies are well-placed. They’ve got their reach, they’ve got their scale, they’ve got customer connectivity. I think it’s great if they’re able to offer products in this ‘smart’ space. It can only be good for all of us to create awareness and serve as a catalyst.’

Of course there are other factors that could help rev up the market. Mass market retailer Ikea, for instance, recently said that it plans to launch an affordable smart lighting line by April.

It’s not clear that Hive Active Light has yet turned into a runaway success. Guy declined to say how many users have gone for it, other than noting that “demand has greatly exceed our expectations.” The broader Hive in general has signed up over 360,000 homes since launching as a heating offering in July 2015, and is the UK’s leading smart thermostat brand, according to Guy.

‘The number of people interested in smart home tech is growing all the time,’ he said. ‘We’re definitely reaching a tipping point.’

It’s still early days. If the market for Hive products and services does indeed heat up in lighting, then watch for more hook-ups between utilities and lighting companies like Aurora.

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Sep/16

23

The week the lighting industry changed forever

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George Washington crossing the Delaware River during the American Revolution. Don’t be lulled into inaction like the British in Boston Harbour in 1773….IoT will be the next revolution in the lighting industry and you need to be prepared.

Gordon Routledge of Revo reports: The next revolution in lighting has arrived in the form of IoT (Internet of Things) and it’s going to change everything.

I’ve been talking about the technological leap forward that IoT represents with a lot of people in the lighting industry, but mostly I am met with blank looks whenever I raise the topic. IoT is even dismissed by some as something that won’t be coming to fruition any time soon.

Ironically, I used to get exactly the same response when I spoke about LEDs some 15 years ago. Change takes time as Bill Gates once said:

I tend to be an early adopter of technology but sometimes I fail to spot the trend. I could not, at first, for example, understand YouTube. Why would you want to make your own video and share it on the Internet? Why would you want to watch that video on a tiny screen on a mobile phone, while sitting on a bus? Yet 11 years on Lux has its own YouTube channel, which has clocked up over 1.4 million views. This is, of course, quite pathetic, when placed in comparison with the multi-millions of views that funny cat videos attract.

The birth of YouTube came well before smartphones and high speed mobile connectivity, it needed some other megatrends to develop for it to rise to its full potential

Now, let’s get one thing clear, the term ‘smart’ is not a replacement for dimmable. Just because you can dim your lights with a smart phone does not mean that you are at the forefront of the IoT revolution. Instead IoT hides in various overused and sometimes difficult to understand terms, Connected LightingSmart CitiesLiFi and PoE, being just a few. These are the trends that are helping IoT to take off.

Verizon, the American communications company have bought Sensity in order to widen their IoT offering.

So why has the world changed this week?  For starters Verizon, one of the world’s largest mobile phone operators, purchased Sensity Systems. Hugh Martin the CEO spoke at one of our conferences two years ago, his vision was simple, all lights are going to be replaced with LED over the next ten years, so, he said, when we do the conversion let’s pack them full of sensors, cameras and wireless networking devices and use the network to build new business apps.

It was jaw dropping for our audience at the time, but Hugh was right on the money. While Sensity’s gun shot detection app may not find a ready use in Europe, Verizon clearly see value in some of their products that they can offer to their millions of subscribers, leveraging the data collected by millions of lighting points.

The Amazon Echo, which allows users to switch on their lights with the sound of their own voice.

Next up, Amazon. The multi-billion-dollar corporation has added the ability to control lighting to its Alexa digital assistant. If you haven’t had cause to buy one yet, Alexa is part of the Amazon Echo, which is a smart speaker that is able to respond to voice commands.

For years we have talked about the death of the light switch and the reason given to prevent this is that people don’t want to reach for a smart phone in the middle of the night to turn the lights on, even though your smart phone is surely going to be closer to your bed than the nearest light switch.

The giving of verbal instructions could well be the true intuitive lighting control, but it won’t work for me, as my wife says I have a habit of talking in my sleep, and lighting is frequently the subject.

The Yellow Dot program allows manufacturers to develop LEDs that work with Philips’ indoor positioning technology.

Of course, Amazon won’t be making lights, although they do have their own brand, Amazon Essentials, so rule nothing out when it comes to anticipating the next move of this cunning company.

Amazon currently relies upon other manufacturers to make devices compatible with Alexa, such as LiFx smart lamps. If I made residential lighting controls I would be very concerned about this move. Lighting control is moving from the cupboard to being in the lamp, and the user interface is migrating from the wall plate to an Amazon owned device.

Finally, Philips has open sourced their light based indoor location system, which is perhaps a canny move for the future. Many smaller OEM’s can’t play in the IoT space and clients and designers will not want to be held to ransom in order to buy Philips fixtures to implement a system.

It also gets Philips away from the dirty business of having to sell rapidly commoditising fixtures. Instead they simply collect data from lighting and sell it on to the end user. Thus data starts to replace lamps as a continuous revenue stream.

These are, of course, just announcements from the last week. But if you throw into the mix Cisco and Acuity Brands buying tech companies with gusto and huge, but lesser known, companies such as Delta Electronics who snapped up Loytec Electronics earlier in the year, you start to realise that the stage is being set for a revolution.

Big technology companies want to use the installation of LEDs to harvest as much data as they can.

It’s becoming clear that big technology companies want to be active on the lighting scene. They don’t want to join in our fun debates about standards, colour quality, lamp bases, glare and flicker though. All they want to do is gain access to the billions of lighting fixtures in the word and harvest the data they collect, enabling new business models to be built that don’t exist today.

You may not believe me, and I’m sure you can find hundreds of reasons as to why it just will not happen…but, read my lips, in ten years time IoT will be on everyone’s mind.

www.novelenergylighting.com

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Jul/16

18

Smart LEDs could join the dots of Internet of Things

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LEDs could be used to link appliances into the ‘Internet of Things’.

LEDs can do double duty and illuminate a room whilst joining together the Internet of Things.

Experts at Disney Research and ETH Zurich believe that it is possible to create a network of luminaires that can send messages to each other, while having no effect on the level of lighting they emit. The experts have designed a Visible Light Communications system that is able to connect to appliances and wearable devices.

‘LED light bulbs mounted on the ceiling or in free-standing floor lamps easily cover a room, serving as illumination while at the same time creating a room-area network that allows data exchange between light-emitting devices’

Markus Gross – vice president Disney Research

‘LED light bulbs mounted on the ceiling or in free-standing floor lamps easily cover a room, serving as illumination while at the same time creating a room-area network that allows data exchange between light-emitting devices,’ commented Markus Gross, vice president at Disney Research.

‘Even if a bulb is not needed for lighting and is switched off, it can still serve as a receiver of signals from those devices,’ he added.

The research team used commercially available, off-the-shelf LED light bulbs to create the system. The fixtures were then modified and a System-on-a-Chip, or SoC, running an embedded version of Linux was added to each luminaire, as well as photodiodes to enhance the sensing of incoming signals.

The team’s completed prototype is able to create stable networks that can support the low bandwidth applications typical of most ‘Internet of Things’ devices.

‘Interconnecting appliances, sensors and a wide variety of devices into the Internet of Things has many potential benefits, but using radio links to do so threatens to make the radio spectrum an even scarcer resource,’ commented Markus Gross, vice president at Disney Research. ‘Visible light communication networks act to conserve the radio spectrum.’

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The IoT, in which every device can communicate with every other device – even a smart bedcover can ‘talk’ with devices such as Philips’ Hue LED lighting system – is fast becoming a fact of life, like it or not. But how are the IoT technologies evolving, what are the benefits and how about the risks? And how about a wider context? James Hunt explains:

Internet and device growth…and the IoT could represent 200 billion devices by 2020. Some say even this is conservative! 

Mario Morales, IDC

The IoT is as of countless ‘things’ that are fitted with uniquely identifiable embedded devices that are wirelessly connected to the Net.  These ‘nodes’, as the ‘things’ are called, can send or receive information without human intervention. The nodes can even be fitted to animals (to track or find them), and indeed to people and their clothes – for a variety of reasons we may or may not like.


To achieve this, every ‘thing’ – which could be an LED light source or luminaire, or thermostat, or an industrial controller, for example – must be uniquely identifiable through its embedded computing system, yet it must also be able to interoperate within the existing Internet infrastructure. Such devices are proliferating fast.

With its myriad such devices, including sensors and actuators that ‘talk’ to each other wirelessly and on the Internet, the IoT brings with it an astonishing ability to measure, monitor, and analyse data. This includes, for example, consumer behaviours and buying habits – and not just consumers either, as all businesses can benefit.

Such monitoring and analyses can be used to determine future product developments that will revolutionise the ways in which we live and do business. For the vast majority of homes – made ‘smart’ by IoT devices – everyday life will be enhanced by technology, particularly in terms of entertainment and comfort.

To take just one example – Google and Philips Lighting have got together for Nest Lab’s intelligent wireless thermostat and home automation devices to work with Philips’ Hue IP-connected LED lamps – OSRAM is in on the act too.

 

Connectivity is the word

When the IoT is augmented with devices such as sensors and actuators, it can then encompass increasingly important technologies such as smart homes, buildings, grids and cities, as well as intelligent transportation. These devices collect useful data with the help of various existing technologies and then autonomously flow the data between other devices – such as those that use Wi-Fi for remote monitoring. But how, in brief, does such connectivity work?

Firstly, there are several types of connectivity used by the IoT. These are:

* Personal Area Networks (PAN)
* Local Area Networks (LAN)
* Neighbourhood Area Networks (NAN)
* Wide Area Networks (WAN).

PANs and LANs are those that most domestic and small business IoT installations are likely to use directly and these are also the ones that the majority of electrical contractors and installers will be involved with.

 

Those IoT devices that use a PAN with a smartphone will use the smartphone as the gateway to the Internet (WAN). Devices in a smart home or automated building can connect to a LAN and find their way to the Internet too.

So IoT devices use, as the name implies, Internet connectivity, but smart devices that are part of an overall IoT can also use other enabling technologies, such as RFID and near-field communication (NFC), optical tags and quick response codes (a now common example is the QR Code) and a whole range of wireless (Wi-Fi) topologies. The latter include Bluetooth Low Energy, low energy wireless IP networks, ZigBee, Z-Wave, LTE-Advanced (high-speed communication specification for mobile networks) and Wi-Fi Direct (Wi-Fi for peer-to-peer communication without needing to have an access point (AP).

It remains to be seen if any one of these becomes pre-eminent.

Important IoT issues

Away from IoT issues that will affect electrical wholesalers, contractors and installers directly – as opposed to regulators, data centre developers and owners, specifiers and IoT / network device manufacturers – there are a number of problems that will need to be addressed to ensure successful wide-scale take-up.

For example, thousands of IoT devices signaling and sending data to each another take both CPU consumption and a surprising amount of energy. This costs money and has carbon emission implications, so IoT devices should use the minimum energy possible. Though this will not normally affect electrical distributors, contractors and installers, ultra-low-power wireless chipsets should be used in IoT devices and low power networks – such as Bluetooth low-energy, ANT, ANT+, ZigBee, ZigBee RF4CE, Wi-Fi, Nike+, IrDA and the near-field communications (NFC) standard.

Bandwidth take-up is another IoT connectivity issue. Bandwidth on a cellular (mobile) network is expensive, especially with hundreds of thousands of IoT devices sending request/response signals to a server – the result is that the server farm will need to be large enough to handle all the data. With the potential for many billions of devices (possibly even trillions longer term), this will be a huge problem that must be addressed.

Another issue is presence detection of IoT devices. This provides the exact state of all IoT devices on a network and shows immediately when any device drops off the network – or when it comes back on. In this way, the IoT devices can be monitored (and fixed if a problem occurs).

And for those IoT devices that ‘live on their own’ – such as trackers – the connectivity to the wider Internet can be tricky.

Finally, it is important to note that the Internet is not simply one network, and heterogenous networks, proxy servers and security firewalls can all disrupt connectivity. So a fully functioning, all-encompassing IoT is not with us yet as many issues need to be sorted. Even so, the vast majority of Voltimum users will not need to confuse themselves with this level of granularity – most already available smart devices they install for domestic use as part of the IoT will be simple to install and commission. They are already.

At light speed!

Although Wi-Fi has not been in the public domain for too many years – apart from computer routers – it is now an established means of data communication. It is fast and increasingly reliable. Importantly, it is quick and easy to install because expensive and disruptive hard wiring is not needed.

However, there’s a new kid on the block that is even faster – far faster – and it has its own set of advantage and disadvantages. Let’s look at it briefly here:

This important newcomer is Li-Fi, which has as its analogue Wi-Fi, but being based upon light (which travels at 186,000 miles/s) is very much faster – many times faster than conventional Wi-Fi – and possibly up to 10 times cheaper.

Li-Fi (or Light Fidelity) is a form of visible light communication (it can also use infrared and near ultraviolet). It is bidirectional and fully networked and has been described as a ‘new era of wireless connections’. With claimed speeds of up to 224 GBps (though mostly lower), this new technology could enable a high-definition film to be downloaded in seconds.

The change to Li-Fi, when it comes, will be driven mainly by the electrical and lighting sectors through LED lighting. Li-Fi will turn every LED lamp into wireless access points (APs), which effectively allows any user to move between sources without losing the connection. The LED lamps act as the medium to deliver networked, mobile, high-speed communication in a similar manner to Wi-Fi (but much faster). All this then becomes another enabler and part of the IoT.

Li-Fi has the advantage of being suitable for use in areas sensitive to electromagnetic waves such as aircraft cabins, hospitals and nuclear power plants, because it does not cause electromagnetic interference. However, the light waves cannot penetrate walls, so reducing Li-Fi’s scope, and there may be problems in bright sunlight. Such difficulties will have to be addressed before there is widespread use of Li-Fi, but there’s no doubt that this new technology is creating great excitement.

Already there are examples of Li-Fi in the market. For instance, Philips Lighting has developed a system for shoppers in stores. They have to download an app on their smartphones, which then work with the lighting LEDs in the store. The LED light sources can pinpoint where the shoppers are located in the store and give them corresponding coupons and information based on which aisle they are on and what they are looking at.

Li-Fi is very likely, therefore, to change data communication; importantly for the electrical and lighting sectors, it will also generate much-needed new revenue.

Ethernet and Industrial Ethernet with the IoT

The IoT doesn’t only have domestic applications; it has a vast potential in commercial, retail, hospitality and public building sectors too. Then there’s industry – in particular, manufacturing and process plant. A connectivity protocol that is very widely used in IT is Ethernet and its industrial counterpart is the much more rigorous Industrial Ethernet. These, together with Wi-Fi are effectively enabling the Manufacturing Internet of Things – otherwise known more usually as the Industrial Internet of Things (IIoT).

The (IoT) has morphed from its RFID origins to one that encompasses all networked devices, both within and without a manufacturing operation. The big drive to adopt IoT in manufacturing has coincided – says Automation World – ‘with a concurrent enabling trend toward use of Industrial Ethernet and wireless (Wi-Fi) network technologies within the production environment’.

In addition to intelligent sensors and machines, the IIoT also takes in ‘Big Data’, cloud computing, analytics, mobility and what is termed universal visualisation. Manufacturers are aiming to implement the IoT or IIoT to optimise assets, increase production efficiencies and, therefore, improve business performance. This is achieved by gathering data from the many sensors, actuators, other devices, machines and controllers operating on the shop floor. This data is then made globally available via a cloud or similar infrastructure platform to those operators who have the authorisation (and for security’s sake, only them), so that they can monitor and analyse it – and act upon it if necessary.

The application of the IoT and IIoT to industry is really beyond the scope of this article, and relatively few Voltimum users are likely to be involved in the sector, but it is important to note, even so, how the IoT is having a crucial impact here already.

Security and safety will be crucially important

There’s that proverbial fly in the ointment, of course, and this is security, which will be of paramount importance if the future all-encompassing IoT is to work as intended, safely and securely. This is because just about everything (and everybody) will be connected together. The possibilities for hacking, denial of service, fraud and utility- and city-scale disruption are huge.

Indeed, security concerns are developing faster than even the IoT itself. This is especially so when it is considered that IoT devices will be (and already are) connected to smart grids, smart cities, water and gas utilities, energy organisations, transport etc. And domestic smart meters will connect homes to power utilities. Knowing this, the potential for catastrophe is certainly clear, whether by accident, by virus intrusion or via hacking.

So among the many considerations will be to ensure that when sending or receiving data, the IoT device or server must have proper authorisation for that (and every such) action. Also, an IoT device is dangerously vulnerable when it is listening to an open port out to the Internet – ports should not be open, despite the need for bidirectionality. End-to-end encryption between devices and servers will be crucial.

But security doesn’t just mean ensuring that your IoT system is secure from hacking; it also involves privacy and whether you can be spied upon, because the IoT holds the possibility that organisations will be able to intensify personal surveillance. And if they can, you can be sure they will try.

Issues include when someone sells a house with a smart thermostat or garage door, how does the new owner ensure former users can no longer access these devices? And how do manufacturers protect against intrusions into smart TVs and theft of data collected from device cameras and microphones? Such issues have to be addressed to make the IoT safe and secure, now and in the future.

Standards

It is clear that IoT and connectivity standards are already a crucially important, though already divisive topic. After all, how will devices connect to others without interoperability standards? Yet, many devices so far conform to a wide range of often non-interoperable standards.

Cross-industry open source organisation, the AllSeen Alliance  (among others) believes that the IoT cannot meet its full potential without an open platform to ensure interoperability between devices from different manufacturers.

Then there’s research by ON World, which finds that the wireless standard ZigBee, already being used by many IoT devices, continues to increase its share of the IEEE 802.15.4 and smart home markets. By 2020, the study claims, ZigBee standards will be used in eight out of 10 of the 802.15.4 chipset shipments.

Furthermore, the Thread Group announced last year that it had completed the specification and documentation for its IP-based wireless networking protocol for low-power connected devices in the home.

These represent just a very few examples of potential interoperability clashes for connected and IoT devices. Therefore, organisations such as the Institute of Electrical and Electronics Engineers (IEEE), the Industrial Internet Consortium (IIC), and the European IoT-A (Internet of Things – Architecture) project, among others, are looking to provide architectural frameworks that define relationships between IoT domains and devices, as well as appropriate security schemes.

As these few examples show, it’s clear that there is much work to do as far as standards and interoperability are concerned.

And finally….

For the future? Well, the World Economic Forum makes five predictions for the IoT, bearing in mind that in the past year alone, IBM has invested £2 billion in its IoT business unit, and AT&T announced a record 1.6 million connected device net additions, including one million IoT-enabled cars, in Q3. Earlier in the year, Samsung declared its commitment to connecting everything it sells by 2020, and GM stated that its OnStar 4G capabilities will generate £242 million in profit over the next three years.

The predictions are:

– That the ‘security of things’ will take centre stage.

– We will stop counting the ‘things’ in favour of more important success metrics to put a premium on the quantifiable impact of new services.

– For the first time, more new cars will be connected than not.

– Low-power wireless area network (LPWAN) technologies will not go mainstream because the technologies are still in their infancy.

– The IoT market will align around a more precise lexicon, meaning that ‘business savvy enterprises will demand accuracy and accountability, resulting in clearer definitions from IoT solution providers’.

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Dubai Silicon Oasis Authority worked with telecoms provider du to integrate the streetlights into an Internet of Things network, where sensors are placed in everyday objects to become ‘smart’ and interact with their surroundings.

A series of street lights in Dubai are pioneering the way for the internet-connected future of the smart city.

In one of the first applications of its type in the world, the luminaires are fitted with motion sensors which detect traffic movements and react accordingly. If there’s no vehicles, the lights remain at 25 per cent output, but if cars approach the output is ramped up to full output.

Additional sensors can be added to the street lights – located at the Silicon Oasis in Dubai – to collect and share information and data on the surrounding environment, such as pollution and weather conditions – or even relay CCTV, advertising messages and safety warnings.

Dubai Silicon Oasis Authority worked with telecoms provider du to integrate the streetlights into an Internet of Things network, where sensors are placed in everyday objects to become ‘smart’ and interact with their surroundings.

The smart building technologies include high-tech sensors in the DSOA headquarters which use du software to allow energy and cost saving through managing the electricity consumption and allowing automatic regulation of temperature throughout the headquarters.

Engineer Muammar Khaled Al Katheeri of the DSOA told Lux Review: ‘Through these initiatives – great and small – DSOA is proud to contribute to achieving the vision of His Highness Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and Ruler of Dubai, of making Dubai the smartest city in the world. We have launched several smart initiatives in DSO that went through Proof of Concepts testing ahead of large scale implementation such as DSO smart waste management that proved to be very successful for reducing waste collection cost and environmental footprint.’

‘We look forward to increasing our collaboration with du on the installation of more smart street lights and smart building technologies around DSO.’

Visit www.novelenergylighting.com to explore our range of LED streetlights

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