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Internet of things

internet of things, internet of things stocks
The Internet of things stylised Internet of Things or IoT is the internetworking of physical devices, vehicles also referred to as "connected devices" and "smart devices", buildings, and other items—embedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data123 In 2013 the Global Standards Initiative on Internet of Things IoT-GSI defined the IoT as "the infrastructure of the information society"3 The IoT allows objects to be sensed and/or controlled remotely across existing network infrastructure,4 creating opportunities for more direct integration of the physical world into computer-based systems, and resulting in improved efficiency, accuracy and economic benefit in addition to reduced human intervention5678910 When IoT is augmented with sensors and actuators, the technology becomes an instance of the more general class of cyber-physical systems, which also encompasses technologies such as smart grids, smart homes, intelligent transportation and smart cities Each thing is uniquely identifiable through its embedded computing system but is able to interoperate within the existing Internet infrastructure Experts estimate that the IoT will consist of almost 50 billion objects by 202011

Typically, IoT is expected to offer advanced connectivity of devices, systems, and services that goes beyond machine-to-machine M2M communications and covers a variety of protocols, domains, and applications12 The interconnection of these embedded devices including smart objects, is expected to usher in automation in nearly all fields, while also enabling advanced applications like a smart grid,13 and expanding to the areas such as smart cities1415

"Things," in the IoT sense, can refer to a wide variety of devices such as heart monitoring implants, biochip transponders on farm animals, electric clams in coastal waters,16 automobiles with built-in sensors, DNA analysis devices for environmental/food/pathogen monitoring17 or field operation devices that assist firefighters in search and rescue operations18 Legal scholars suggest to look at "Things" as an "inextricable mixture of hardware, software, data and service"19 These devices collect useful data with the help of various existing technologies and then autonomously flow the data between other devices20 Current market examples include home automation also known as smart home devices such as the control and automation of lighting, heating like smart thermostat, ventilation, air conditioning HVAC systems, and appliances such as washer/dryers, robotic vacuums, air purifiers, ovens or refrigerators/freezers that use Wi-Fi for remote monitoring

As well as the expansion of Internet-connected automation into a plethora of new application areas, IoT is also expected to generate large amounts of data from diverse locations, with the consequent necessity for quick aggregation of the data, and an increase in the need to index, store, and process such data more effectively IoT is one of the platforms of today's Smart City, and Smart Energy Management Systems2122

The concept of the Internet of Things was invented by and term coined by Peter T Lewis in September 1985 in a speech he delivered at a US Federal Communications Commission FCC supported session at the Congressional Black Caucus 15th Legislative Weekend Conference23better source needed

Contents

  • 1 History
  • 2 Applications
    • 21 Media
    • 22 Environmental monitoring
    • 23 Infrastructure management
    • 24 Manufacturing
    • 25 Energy management
    • 26 Medical and healthcare
    • 27 Building and home automation
    • 28 Transportation
    • 29 Metropolitan scale deployments
    • 210 Consumer application
  • 3 Unique addressability of things
  • 4 Trends and characteristics
    • 41 Intelligence
    • 42 Architecture
      • 421 Network architecture
    • 43 Complexity
    • 44 Size considerations
    • 45 Space considerations
    • 46 Sectors
    • 47 A Solution to "basket of remotes"
  • 5 Frameworks
  • 6 Standards and standards organizations
  • 7 Enabling technologies for IoT
    • 71 Short-range wireless
    • 72 Medium-range wireless
    • 73 Long-range wireless
    • 74 Wired
  • 8 Simulation
  • 9 Politics and civic engagement
  • 10 Government regulation on IoT
  • 11 Criticism and controversies
    • 111 Platform fragmentation
    • 112 Privacy, autonomy and control
    • 113 Data storage and analytics
    • 114 Security
    • 115 Design
    • 116 Environmental sustainability impact
    • 117 Intentional obsolescence of devices
  • 12 See also
  • 13 References
  • 14 Further reading
  • 15 External links

Historyedit

As of 2016update, the vision of the Internet of things has evolved due to a convergence of multiple technologies, including ubiquitous wireless communication, real-time analytics, machine learning, commodity sensors, and embedded systems18 This means that the traditional fields of embedded systems, wireless sensor networks, control systems, automation including home and building automation, and others all contribute to enabling the Internet of things24 IoT

The concept of a network of smart devices was discussed as early as 1982, with a modified Coke machine at Carnegie Mellon University becoming the first Internet-connected appliance,25 able to report its inventory and whether newly loaded drinks were cold26 Mark Weiser's seminal 1991 paper on ubiquitous computing, "The Computer of the 21st Century", as well as academic venues such as UbiComp and PerCom produced the contemporary vision of IoT2728 In 1994 Reza Raji described the concept in IEEE Spectrum as "moving small packets of data to a large set of nodes, so as to integrate and automate everything from home appliances to entire factories"29 Between 1993 and 1996 several companies proposed solutions like Microsoft's at Work or Novell's NEST However, only in 1999 did the field start gathering momentum Bill Joy envisioned Device to Device D2D communication as part of his "Six Webs" framework, presented at the World Economic Forum at Davos in 199930

The term "Internet of Things" was coined by Peter T Lewis in a 1985 speech given at a US Federal Communications Commission FCC supported wireless session at the Congressional Black Caucus 15th Legislative Weekend Conference In his speech he states that "The Internet of Things, or IoT, is the integration of people, processes and technology with connectable devices and sensors to enable remote monitoring, status, manipulation and evaluation of trends of such devices"23better source needed

The concept of the Internet of things became popular in 1999, through the Auto-ID Center at MIT and related market-analysis publications31 Radio-frequency identification RFID was seen by Kevin Ashton one of the founders of the original Auto-ID Center as a prerequisite for the Internet of things at that point32 Ashton prefers the phrase "Internet for Things"33 If all objects and people in daily life were equipped with identifiers, computers could manage and inventory them343536 Besides using RFID, the tagging of things may be achieved through such technologies as near field communication, barcodes, QR codes and digital watermarking3738

In its original interpretation,when one of the first consequences of implementing the Internet of things by equipping all objects in the world with minuscule identifying devices or machine-readable identifiers would be to transform daily life3940 For instance, instant and ceaseless inventory control would become ubiquitous40 A person's ability to interact with objects could be altered remotely based on immediate or present needs, in accordance with existing end-user agreements32 For example, such technology could grant motion-picture publishers much more control over end-user private devices by remotely enforcing copyright restrictions and digital rights management, so the ability of a customer who bought a Blu-ray disc to watch the movie could become dependent on the copyright holder's decision, similar to Circuit City's failed DIVX

Applicationsedit

A Nest learning thermostat reporting on energy usage and local weather A 2012 Internet refrigerator from LG

According to Gartner, Inc a technology research and advisory corporation, there will be nearly 208 billion devices on the Internet of things by 202041 ABI Research estimates that more than 30 billion devices will be wirelessly connected to the Internet of things by 202042 As per a 2014 survey and study done by Pew Research Internet Project, a large majority of the technology experts and engaged Internet users who responded—83 percent—agreed with the notion that the Internet/Cloud of Things, embedded and wearable computing and the corresponding dynamic systems43 will have widespread and beneficial effects by 202544 As such, it is clear that the IoT will consist of a very large number of devices being connected to the Internet45 In an active move to accommodate new and emerging technological innovation, the UK Government, in their 2015 budget, allocated £40,000,000 towards research into the Internet of things The former British Chancellor of the Exchequer George Osborne, posited that the Internet of things is the next stage of the information revolution and referenced the inter-connectivity of everything from urban transport to medical devices to household appliances46

Integration with the Internet implies that devices will use an IP address as a unique identifier However, due to the limited address space of IPv4 which allows for 43 billion unique addresses, objects in the IoT will have to use IPv6 to accommodate the extremely large address space required4748495051 Objects in the IoT will not only be devices with sensory capabilities, but also provide actuation capabilities eg, bulbs or locks controlled over the Internet52 To a large extent, the future of the Internet of things will not be possible without the support of IPv6; and consequently the global adoption of IPv6 in the coming years will be critical for the successful development of the IoT in the future48495051

The ability to network embedded devices with limited CPU, memory and power resources means that IoT finds applications in nearly every field53 Such systems could be in charge of collecting information in settings ranging from natural ecosystems to buildings and factories,52 thereby finding applications in fields of environmental sensing and urban planning54

On the other hand, IoT systems could also be responsible for performing actions, not just sensing things Intelligent shopping systems, for example, could monitor specific users' purchasing habits in a store by tracking their specific mobile phones These users could then be provided with special offers on their favorite products, or even location of items that they need, which their fridge has automatically conveyed to the phone5556 Additional examples of sensing and actuating are reflected in applications that deal with heat, electricity and energy management, as well as cruise-assisting transportation systems57 Other applications that the Internet of things can provide is enabling extended home security features and home automation58 The concept of an "Internet of living things" has been proposed to describe networks of biological sensors that could use cloud-based analyses to allow users to study DNA or other molecules5960

However, the application of the IoT is not only restricted to these areas Other specialized use cases of the IoT may also exist An overview of some of the most prominent application areas is provided here Based on the application domain, IoT products can be classified broadly into five different categories: smart wearable, smart home, smart city, smart environment, and smart enterprise The IoT products and solutions in each of these markets have different characteristics61

Mediaedit

In order to hone the manner in which things, media and big data are interconnected, it is first necessary to provide some context into the mechanism used for media process It has been suggested by Nick Couldry and Joseph Turow that practitioners in media approach big data as many actionable points of information about millions of individuals The industry appears to be moving away from the traditional approach of using specific media environments such as newspapers, magazines, or television shows and instead tap into consumers with technologies that reach targeted people at optimal times in optimal locations The ultimate aim is of course to serve, or convey, a message or content that is statistically speaking in line with the consumer's mindset For example, publishing environments are increasingly tailoring the messages advertisements and content articles to appeal to consumers that have been exclusively gleaned through various data-mining activities62

The media industries process big data in a dual, interconnected manner:

  • Targeting of consumers for advertising by marketers
  • Data-capture

Thus, the Internet of things creates an opportunity to measure, collect and analyse an ever-increasing variety of behavioural statistics Cross-correlation of this data could revolutionise the targeted marketing of products and services63 For example, as noted by Danny Meadows-Klue, the combination of analytics for conversion tracking with behavioural targeting has unlocked a new level of precision that enables display advertising to be focused on the devices of people with relevant interests64 Big data and the IoT work in conjunction From a media perspective, data is the key derivative of device interconnectivity, whilst being pivotal in allowing clearer accuracy in targeting The Internet of things therefore transforms the media industry, companies and even governments, opening up a new era of economic growth and competitiveness65 The wealth of data generated by this industry ie big data will allow practitioners in advertising and media to gain an elaborate layer on the present targeting mechanisms used by the industry

Environmental monitoringedit

Environmental monitoring applications of the IoT typically use sensors to assist in environmental protection66 by monitoring air or water quality,16 atmospheric or soil conditions,67 and can even include areas like monitoring the movements of wildlife and their habitats68 Development of resource constrained devices connected to the Internet also means that other applications like earthquake or tsunami early-warning systems can also be used by emergency services to provide more effective aid IoT devices in this application typically span a large geographic area and can also be mobile52 It has been argued that the standardization IoT brings to wireless sensing will revolutionize this area69

Infrastructure managementedit

Monitoring and controlling operations of urban and rural infrastructures like bridges, railway tracks, on- and offshore- wind-farms is a key application of the IoT70 The IoT infrastructure can be used for monitoring any events or changes in structural conditions that can compromise safety and increase risk It can also be used for scheduling repair and maintenance activities in an efficient manner, by coordinating tasks between different service providers and users of these facilities52 IoT devices can also be used to control critical infrastructure like bridges to provide access to ships Usage of IoT devices for monitoring and operating infrastructure is likely to improve incident management and emergency response coordination, and quality of service, up-times and reduce costs of operation in all infrastructure related areas71 Even areas such as waste management can benefit from automation and optimization that could be brought in by the IoT72

Manufacturingedit

Network control and management of manufacturing equipment, asset and situation management, or manufacturing process control bring the IoT within the realm on industrial applications and smart manufacturing as well73 The IoT intelligent systems enable rapid manufacturing of new products, dynamic response to product demands, and real-time optimization of manufacturing production and supply chain networks, by networking machinery, sensors and control systems together52

Digital control systems to automate process controls, operator tools and service information systems to optimize plant safety and security are within the purview of the IoT70 But it also extends itself to asset management via predictive maintenance, statistical evaluation, and measurements to maximize reliability74 Smart industrial management systems can also be integrated with the Smart Grid, thereby enabling real-time energy optimization Measurements, automated controls, plant optimization, health and safety management, and other functions are provided by a large number of networked sensors52

National Science Foundation established an Industry/University Cooperative Research Center on intelligent maintenance systems IMS in 2001 with a research focus to use IoT-based predictive analytics technologies to monitor connected machines and to predict machine degradation, and further to prevent potential failures75 The vision to achieve near-zero breakdown using IoT-based predictive analytics led the future development of e-manufacturing and e-maintenance activities76

The term IIoT Industrial Internet of Things is often encountered in the manufacturing industries, referring to the industrial subset of the IoT IIoT in manufacturing would probably generate so much business value that it will eventually lead to the fourth industrial revolution, so the so-called Industry 40 It is estimated that in the future, successful companies will be able to increase their revenue through Internet of things by creating new business models and improve productivity, exploit analytics for innovation, and transform workforce77 The potential of growth by implementing IIoT will generate $12 trillion of global GDP by 203077

Design architecture of cyber-physical systems-enabled manufacturing system78

While connectivity and data acquisition are imperative for IIoT, they should not be the purpose, rather the foundation and path to something bigger Among all the technologies, predictive maintenance is probably a relatively "easier win" since it is applicable to existing assets and management systems The objective of intelligent maintenance systems is to reduce unexpected downtime and increase productivity And to realize that alone would generate around up to 30% over total maintenance costs77 Industrial big data analytics will play a vital role in manufacturing asset predictive maintenance, although that is not the only capability of industrial big data7980 Cyber-physical systems CPS is the core technology of industrial big data and it will be an interface between human and the cyber world Cyber-physical systems can be designed by following the 5C connection, conversion, cyber, cognition, configuration architecture,78 and it will transform the collected data into actionable information, and eventually interfere with the physical assets to optimize processes

An IoT-enabled intelligent system of such cases has been demonstrated by the NSF Industry/University Collaborative Research Center for Intelligent Maintenance Systems IMS at University of Cincinnati on a band saw machine in IMTS 2014 in Chicago81 Band saw machines are not necessarily expensive, but the band saw belt expenses are enormous since they degrade much faster However, without sensing and intelligent analytics, it can be only determined by experience when the band saw belt will actually break The developed prognostics system will be able to recognize and monitor the degradation of band saw belts even if the condition is changing, so that users will know in near real time when is the best time to replace band saw This will significantly improve user experience and operator safety, and save costs on replacing band saw belts before they actually break The developed analytical algorithms were realized on a cloud server, and was made accessible via the Internet and on mobile devices81

Energy managementedit

Integration of sensing and actuation systems, connected to the Internet, is likely to optimize energy consumption as a whole52 It is expected that IoT devices will be integrated into all forms of energy consuming devices switches, power outlets, bulbs, televisions, etc and be able to communicate with the utility supply company in order to effectively balance power generation and energy usage82 Such devices would also offer the opportunity for users to remotely control their devices, or centrally manage them via a cloud based interface, and enable advanced functions like scheduling eg, remotely powering on or off heating systems, controlling ovens, changing lighting conditions etc52

Besides home based energy management, the IoT is especially relevant to the Smart Grid since it provides systems to gather and act on energy and power-related information in an automated fashion with the goal to improve the efficiency, reliability, economics, and sustainability of the production and distribution of electricity82 Using advanced metering infrastructure AMI devices connected to the Internet backbone, electric utilities can not only collect data from end-user connections, but also manage other distribution automation devices like transformers and reclosers52

Medical and healthcareedit

IoT devices can be used to enable remote health monitoring and emergency notification systems These health monitoring devices can range from blood pressure and heart rate monitors to advanced devices capable of monitoring specialized implants, such as pacemakers Fitbit electronic wristbands or advanced hearing aids52 Some hospitals have begun implementing "smart beds" that can detect when they are occupied and when a patient is attempting to get up It can also adjust itself to ensure appropriate pressure and support is applied to the patient without the manual interaction of nurses83 Specialized sensors can also be equipped within living spaces to monitor the health and general well-being of senior citizens, while also ensuring that proper treatment is being administered and assisting people regain lost mobility via therapy as well84 Other consumer devices to encourage healthy living, such as, connected scales or wearable heart monitors, are also a possibility with the IoT85 More and more end-to-end health monitoring IoT platforms are coming up for antenatal and chronic patients, helping one manage health vitals and recurring medication requirementscitation needed

Building and home automationedit

IoT devices can be used to monitor and control the mechanical, electrical and electronic systems used in various types of buildings eg, public and private, industrial, institutions, or residential52 in home automation and building automation systems

Transportationedit

Digital variable speed-limit sign

The IoT can assist in integration of communications, control, and information processing across various transportation systems Application of the IoT extends to all aspects of transportation systems ie the vehicle, the infrastructure, and the driver or user Dynamic interaction between these components of a transport system enables inter and intra vehicular communication, smart traffic control, smart parking, electronic toll collection systems, logistic and fleet management, vehicle control, and safety and road assistance52

Metropolitan scale deploymentsedit

There are several planned or ongoing large-scale deployments of the IoT, to enable better management of cities and systems For example, Songdo, South Korea, the first of its kind fully equipped and wired smart city, is near completion Nearly everything in this city is planned to be wired, connected and turned into a constant stream of data that would be monitored and analyzed by an array of computers with little, or no human interventioncitation needed

Another application is a currently undergoing project in Santander, Spain For this deployment, two approaches have been adopted This city of 180,000 inhabitants, has already seen 18,000 city application downloads for their smartphones This application is connected to 10,000 sensors that enable services like parking search, environmental monitoring, digital city agenda among others City context information is used in this deployment so as to benefit merchants through a spark deals mechanism based on city behavior that aims at maximizing the impact of each notification86

Other examples of large-scale deployments underway include the Sino-Singapore Guangzhou Knowledge City;87 work on improving air and water quality, reducing noise pollution, and increasing transportation efficiency in San Jose, California;88 and smart traffic management in western Singapore89 French company, Sigfox, commenced building an ultra-narrowband wireless data network in the San Francisco Bay Area in 2014, the first business to achieve such a deployment in the US9091 It subsequently announced it would set up a total of 4000 base stations to cover a total of 30 cities in the US by the end of 2016, making it the largest IoT network coverage provider in the country thus far9293

Another example of a large deployment is the one completed by New York Waterways in New York City to connect all the city's vessels and be able to monitor them live 24/7 The network was designed and engineered by Fluidmesh Networks, a Chicago-based company developing wireless networks for critical applications The NYWW network is currently providing coverage on the Hudson River, East River, and Upper New York Bay With the wireless network in place, NY Waterway is able to take control of its fleet and passengers in a way that was not previously possible New applications can include security, energy and fleet management, digital signage, public Wi-Fi, paperless ticketing and others94

Consumer applicationedit

A growing portion of IoT devices are created for consumer use Examples of consumer applications include connected car, entertainment, residences and smart homes, wearable technology, quantified self, connected health, and smart retail Consumer IoT provides new opportunities for user experience and interfaces

Some consumer applications have been criticized for their lack of redundancy and their inconsistency, leading to a popular parody known as the “Internet of Shit”95 Companies have been criticized for their rush into IoT, creating devices of questionable value,96 and not setting up stringent security standards97

Unique addressability of thingsedit

The original idea of the Auto-ID Center is based on RFID-tags and unique identification through the Electronic Product Code however this has evolved into objects having an IP address or URI

An alternative view, from the world of the Semantic Web98 focuses instead on making all things not just those electronic, smart, or RFID-enabled addressable by the existing naming protocols, such as URI The objects themselves do not converse, but they may now be referred to by other agents, such as powerful centralized servers acting for their human owners

The next generation of Internet applications using Internet Protocol version 6 IPv6 would be able to communicate with devices attached to virtually all human-made objects because of the extremely large address space of the IPv6 protocol This system would therefore be able to scale to the large numbers of objects envisaged99

A combination of these ideas can be found in the current GS1/EPCglobal EPC Information Services100 EPCIS specifications This system is being used to identify objects in industries ranging from aerospace to fast moving consumer products and transportation logistics101

Trends and characteristicsedit

Technology roadmap: Internet of things

Intelligenceedit

Ambient intelligence and autonomous control are not part of the original concept of the Internet of things Ambient intelligence and autonomous control do not necessarily require Internet structures, either However, there is a shift in research to integrate the concepts of the Internet of things and autonomous control, with initial outcomes towards this direction considering objects as the driving force for autonomous IoT

In the future the Internet of things may be a non-deterministic and open network in which auto-organized or intelligent entities Web services, SOA components, virtual objects avatars will be interoperable and able to act independently pursuing their own objectives or shared ones depending on the context, circumstances or environments Autonomous behavior through the collection and reasoning of context information as well as the objects ability to detect changes in the environment, faults affecting sensors and introduce suitable mitigation measures constitute a major research trend,102 clearly needed to provide credibility to the IoT technology Modern IoT products and solutions in the marketplace use a variety of different technologies to support such context-aware automation but more sophisticated forms of intelligence are requested to permit sensor units to be deployed in real environments

Architectureedit

The system will likely be an example of event-driven architecture,103 bottom-up made based on the context of processes and operations, in real-time and will consider any subsidiary level Therefore, model driven and functional approaches will coexist with new ones able to treat exceptions and unusual evolution of processes multi-agent systems, B-ADSc, etc

In an Internet of things, the meaning of an event will not necessarily be based on a deterministic or syntactic model but would instead be based on the context of the event itself: this will also be a semantic web104 Consequently, it will not necessarily need common standards that would not be able to address every context or use: some actors services, components, avatars will accordingly be self-referenced and, if ever needed, adaptive to existing common standards predicting everything would be no more than defining a "global finality" for everything that is just not possible with any of the current top-down approaches and standardizations Some researchers argue that sensor networks are the most essential components of the Internet of things105

Building on top of the Internet of things, the web of things is an architecture for the application layer of the Internet of things looking at the convergence of data from IoT devices into Web applications to create innovative use-cases In order to program and control the flow of information in the Internet of things, a predicted architectural direction is being called BPM Everywhere which is a blending of traditional process management with process mining and special capabilities to automate the control of large numbers of coordinated devices

Network architectureedit

106

The Internet of things requires huge scalability in the network space to handle the surge of devices IETF 6LoWPAN would be used to connect devices to IP networks With billions of devices41 being added to the Internet space, IPv6 will play a major role in handling the network layer scalability IETF's Constrained Application Protocol, MQTT and ZeroMQ would provide lightweight data transport

Fog computing is a viable alternative to prevent such large burst of data flow through Internet The edge devices' computation power can be used to analyse and process data, thus providing easy real time scalability

Complexityedit

In semi-open or closed loops ie value chains, whenever a global finality can be settled IoT will often be considered and studied as a complex system107 due to the huge number of different links, interactions between autonomous actors, and its capacity to integrate new actors At the overall stage full open loop it will likely be seen as a chaotic environment since systems always have finality As a practical approach, not all elements in the Internet of things run in a global, public space Subsystems are often implemented to mitigate the risks of privacy, control and reliability For example, Domestic Robotics Domotics running inside a smart home might only share data within and be available via a local network

Size considerationsedit

The Internet of things would encode 50 to 100 trillion objects, and be able to follow the movement of those objects Human beings in surveyed urban environments are each surrounded by 1000 to 5000 trackable objects108

Space considerationsedit

In the Internet of things, the precise geographic location of a thing—and also the precise geographic dimensions of a thing—will be critical109 Therefore, facts about a thing, such as its location in time and space, have been less critical to track because the person processing the information can decide whether or not that information was important to the action being taken, and if so, add the missing information or decide to not take the action Note that some things in the Internet of things will be sensors, and sensor location is usually important110 The GeoWeb and Digital Earth are promising applications that become possible when things can become organized and connected by location However, the challenges that remain include the constraints of variable spatial scales, the need to handle massive amounts of data, and an indexing for fast search and neighbor operations In the Internet of things, if things are able to take actions on their own initiative, this human-centric mediation role is eliminated Thus, the time-space context that we as humans take for granted must be given a central role in this information ecosystem Just as standards play a key role in the Internet and the Web, geospatial standards will play a key role in the Internet of thingscitation needed

Sectorsedit

There are three core sectors of the IoT: enterprise, home, and government, with the Enterprise Internet of Things EIoT being the largest of the three By 2019, the EIoT sector is estimated to account for nearly 40% or 91 billion devices111

A Solution to "basket of remotes"edit

According to the CEO of Cisco, the commercial opportunity for "connected products ranging from cars to household goods" is expected to be a $USD 19 trillion112 Many IoT devices have a potential to take a piece of this market Jean-Louis Gassée Apple initial alumni team, and BeOS co-founder has addressed this topic in an article on Monday Note,113 where he predicts that the most likely problem will be what he calls the "basket of remotes" problem, where we'll have hundreds of applications to interface with hundreds of devices that don't share protocols for speaking with one another

There are multiple approaches to solve this problem, one of them called the "predictive interaction",114 where cloud or fog based decision makers clarification needed will predict the user's next action and trigger some reaction

For user interaction, new technology leaders are joining forces to create standards for communication between devices While AllJoyn alliance is composed of the top 20 World technology leaders, there are also big companies that promote their own protocol like CCF from Intel

Manufacturers are becoming more conscious of this problem, and many companies have begun releasing their devices with open APIs Many of these APIs are used by smaller companies looking to take advantage of quick integrationcitation needed

Frameworksedit

IoT frameworks might help support the interaction between "things" and allow for more complex structures like distributed computing and the development of distributed applications Currently, some IoT frameworks seem to focus on real time data logging solutions like Jasper Technologies, Inc and Xively formerly Cosm and before that Pachube, offering some basis to work with many "things" and have them interact Future developments might lead to specific software-development environments to create the software to work with the hardware used in the Internet of things Companies are developing technology platforms to provide this type of functionality for the Internet of things Newer platforms are being developed, which add more intelligence Foremost, IBM has announced cognitive IoT, which combines traditional IoT with machine intelligence and learning, contextual information, industry-specific models and even natural language processing The XMPP Standards Foundation XSF is creating such a framework in a fully open standard that is neither tied to any company nor connected to any cloud services This XMPP initiative is called Chatty Things115 XMPP provides a set of needed building blocks and a proven distributed solution that can scale with high security levels

REST is a scalable architecture that allows things to communicate over Hypertext Transfer Protocol and is easily adopted for IoT applications to provide communication from a thing to a central web server

MQTT is a publish-subscribe architecture on top of TCP/IP which allows bi-directional communication between a thing and a MQTT broker

Standards and standards organizationsedit

This is a list of technical standards for the IoT, most of which are open standards, and the standards organizations that aspire to successfully setting them

Short name Long name Standards under development Other notes
Auto-ID Labs Networked RFID radiofrequency identification and emerging sensing technologies
EPCglobal Standards for adoption of EPC Electronic Product Code technology
FDA US Food and Drug Administration UDI Unique Device Identification system for unique identifiers for medical devices
GS1 Standards for UIDs unique identifiers and RFID of fast-moving consumer goods consumer packaged goods, health care supplies, and other things Parent organization comprises member organizations such as GS1 US
IETF Internet Engineering Task Force Standards that comprise TCP/IP the Internet protocol suite
MTConnect Institute MTConnect is a manufacturing industry standard for data exchange with machine tools and related industrial equipment It is important to the IIoT subset of the IoT
OCF Open Connectivity Foundation Standards for simple devices using CoAP Constrained Application Protocol OCF Open Connectivity Foundation supersedes OIC Open Interconnect Consortium
XSF XMPP Standards Foundation Protocol extensions of XMPP Extensible Messaging and Presence Protocol, the open standard of instant messaging

Enabling technologies for IoTedit

There are many technologies that enable IoT Crucial to the field is the network used to communicate between devices of an IoT installation, a role that several wireless and/or wired technologies may fulfill:116117118119

Short-range wirelessedit

  • Bluetooth low energy BLE – Specification providing a low power variant to classic Bluetooth with a comparable communication range
  • Light-Fidelity Li-Fi – Wireless communication technology similar to the Wi-Fi standard, but using visible light communication for increased bandwidth
  • Near-field communication NFC – Communication protocols enabling two electronic devices to communicate within a 4 cm range
  • QR codes and barcodes – Machine-readable optical tags that store information about the item to which they are attached
  • Radio-frequency identification RFID – Technology using electromagnetic fields to read data stored in tags embedded in other items
  • Thread – Network protocol based on the IEEE 802154 standard, similar to ZigBee, providing IPv6 addressing
  • Wi-Fi – Widely-used technology for local area networking based on the IEEE 80211 standard, where devices may communicate through a shared access point
  • Wi-Fi Direct – Variant of the Wi-Fi standard for peer-to-peer communication, eliminating the need for an access point
  • Z-Wave – Communication protocol providing short-range, low-latency data transfer at rates and power consumption lower than Wi-Fi Used primarily for home automation
  • ZigBee – Communication protocols for personal area networking based on the IEEE 802154 standard, providing low power consumption, low data rate, low cost, and high throughput

Medium-range wirelessedit

  • HaLow – Variant of the Wi-Fi standard providing extended range for low-power communication at a lower data rate
  • LTE-Advanced – High-speed communication specification for mobile networks Provides enhancements to the LTE standard with extended coverage, higher throughput, and lower latency

Long-range wirelessedit

  • Low-power wide-area networking LPWAN – Wireless networks designed to allow long-range communication at a low data rate, reducing power and cost for transmission
  • Very small aperture terminal VSAT – Satellite communication technology using small dish antennas for narrowband and broadband data

Wirededit

  • Ethernet – General purpose networking standard using twisted pair and fiber optic links in conjunction with hubs or switches
  • Multimedia over Coax Alliance MoCA – Specification enabling whole-home distribution of high definition video and content over existing coaxial cabling
  • Power-line communication PLC – Communication technology using electrical wiring to carry power and data Specifications such as HomePlug utilize PLC for networking IoT devices

Simulationedit

IoT modeling and simulation and emulation is typically carried out at the design stage before deployment of the network Network simulators like OPNET, NetSim and NS2 can be used to simulate IoT networks

Politics and civic engagementedit

Some scholars and activists argue that the IoT can be used to create new models of civic engagement if device networks can be open to user control and inter-operable platforms Philip N Howard, a professor and author, writes that political life in both democracies and authoritarian regimes will be shaped by the way the IoT will be used for civic engagement For that to happen, he argues that any connected device should be able to divulge a list of the "ultimate beneficiaries" of its sensor data and that individual citizens should be able to add new organizations to the beneficiary list In addition, he argues that civil society groups need to start developing their IoT strategy for making use of data and engaging with the public120

Government regulation on IoTedit

One of the key drivers of the IoT is data The success of the idea of connecting devices to make them more efficient is dependent upon access to and storage & processing of data For this purpose, companies working on IoT collect data from multiple sources and store it in their cloud network for further processing This leaves the door wide open for privacy and security dangers and single point vulnerability of multiple systems121 The other issues pertain to consumer choice and ownership of data122 and how it is used Presently the regulators have shown more interest in protecting the first three issues identified above

Current regulatory environment:

A report published by the Federal Trade Commission FTC in January 2015 made the following three recommendations:123

  • Data security – At the time of designing IoT companies should ensure that data collection, storage and processing would be secure at all times Companies should adopt a “defence in depth” approach and encrypt data at each stage124
  • Data consent – users should have a choice as to what data they share with IoT companies and the users must be informed if their data gets exposed
  • Data minimization – IoT companies should collect only the data they need and retain the collected information only for a limited time

However, the FTC stopped at just making recommendations for now According to an FTC analysis, the existing framework, consisting of the FTC Act, the Fair Credit Reporting Act, and the Children’s Online Privacy Protection Act, along with developing consumer education and business guidance, participation in multi-stakeholder efforts and advocacy to other agencies at the federal, state and local level, is sufficient to protect consumer rights125

A resolution passed by the Senate in March 2015, is already being considered by the Congress126 This resolution recognized the need for formulating a National Policy on IoT and the matter of privacy, security and spectrum Furthermore, to provide an impetus to the IoT ecosystem, in March 2016, a bipartisan group of four Senators proposed a bill, The Developing Innovation and Growing the Internet of Things DIGIT Act, to direct the Federal Communications Commission to assess the need for more spectrum to connect IoT devices

Several standards for the IoT industry are actually being established relating to automobiles because most concerns arising from use of connected cars apply to healthcare devices as well In fact, the National Highway Traffic Safety Administration NHTSA is preparing cybersecurity guidelines and a database of best practices to make automotive computer systems more secure127

Criticism and controversiesedit

Platform fragmentationedit

IoT suffers from platform fragmentation and lack of technical standards128129130131132133134 a situation where the variety of IoT devices, in terms of both hardware variations and differences in the software running on them, makes the task of developing applications that work consistently between different inconsistent technology ecosystems hard1 Customers may be hesitant to bet their IoT future on a proprietary software or hardware devices that uses proprietary protocols that may fade or become difficult to customize and interconnect2

IoT's amorphous computing nature is also a problem for security, since patches to bugs found in the core operating system often do not reach users of older and lower-price devices135136137 One set of researchers say that the failure of vendors to support older devices with patches and updates leaves more than 87% of active devices vulnerable138139

Privacy, autonomy and controledit

Philip N Howard, a professor and author, writes that the Internet of things offers immense potential for empowering citizens, making government transparent, and broadening information access Howard cautions, however, that privacy threats are enormous, as is the potential for social control and political manipulation140

Concerns about privacy have led many to consider the possibility that big data infrastructures such as the Internet of things and Data Mining are inherently incompatible with privacy141 Writer Adam Greenfield claims that these technologies are not only an invasion of public space but are also being used to perpetuate normative behavior, citing an instance of billboards with hidden cameras that tracked the demographics of passersby who stopped to read the advertisement142

The Internet of Things Council compared the increased prevalence of digital surveillance due to the Internet of things to the conceptual panopticon described by Jeremy Bentham in the 18th Century143 The assertion was defended by the works of French philosophers Michel Foucault and Gilles Deleuze In Discipline and Punish: The Birth of the Prison Foucault asserts that the panopticon was a central element of the discipline society developed during the Industrial Era144 Foucault also argued that the discipline systems established in factories and school reflected Bentham's vision of panopticism144 In his 1992 paper "Postscripts on the Societies of Control," Deleuze wrote that the discipline society had transitioned into a control society, with the computer replacing the panopticon as an instrument of discipline and control while still maintaining the qualities similar to that of panopticism145

The privacy of households could be compromised by solely analyzing smart home network traffic patterns without dissecting the contents of encrypted application data, yet a synthetic packet injection scheme can be used to safely overcome such invasion of privacy146

Peter-Paul Verbeek, a professor of philosophy of technology at the University of Twente, Netherlands, writes that technology already influences our moral decision making, which in turn affects human agency, privacy and autonomy He cautions against viewing technology merely as a human tool and advocates instead to consider it as an active agent147

Justin Brookman, of the Center for Democracy and Technology, expressed concern regarding the impact of IoT on consumer privacy, saying that "There are some people in the commercial space who say, 'Oh, big data — well, let's collect everything, keep it around forever, we'll pay for somebody to think about security later' The question is whether we want to have some sort of policy framework in place to limit that"148

Tim O'Reilly believes that the way companies sell the IoT devices on consumers are misplaced, disputing the notion that the IoT is about gaining efficiency from putting all kinds of devices online and postulating that "IoT is really about human augmentation The applications are profoundly different when you have sensors and data driving the decision-making"149

Editorials at WIRED have also expressed concern, one stating "What you're about to lose is your privacy Actually, it's worse than that You aren't just going to lose your privacy, you're going to have to watch the very concept of privacy be rewritten under your nose"150

The American Civil Liberties Union ACLU expressed concern regarding the ability of IoT to erode people's control over their own lives The ACLU wrote that "There's simply no way to forecast how these immense powers – disproportionately accumulating in the hands of corporations seeking financial advantage and governments craving ever more control – will be used Chances are big data and the Internet of Things will make it harder for us to control our own lives, as we grow increasingly transparent to powerful corporations and government institutions that are becoming more opaque to us"151

Researchers have identified privacy challenges faced by all stakeholders in IoT domain, from the manufacturers and app developers to the consumers themselves, and examined the responsibility of each party in order to ensure user privacy at all times Problems highlighted by the report152 include:

  • User consent – somehow, the report says, users need to be able to give informed consent to data collection Users, however, have limited time and technical knowledge
  • Freedom of choice – both privacy protections and underlying standards should promote freedom of choice
  • Anonymity – IoT platforms pay scant attention to user anonymity when transmitting data, the researchers note Future platforms could, for example, use TOR or similar technologies so that users can't be too deeply profiled based on the behaviors of their "things"

In response to rising concerns about privacy and smart technology, in 2007 the British Government stated it would follow formal Privacy by Design principles when implementing their smart metering program The program would lead to replacement of traditional power meters with smart power meters, which could track and manage energy usage more accurately153 However the British Computer Society is doubtful these principles were ever actually implemented154 In 2009 the Dutch Parliament rejected a similar smart metering program, basing their decision on privacy concerns The Dutch program later revised and passed in 2011154

Data storage and analyticsedit

A challenge for producers of IoT applications is to process and interpret the vast amount of data which is gathered by the sensors There is a solution proposed for the analytics of the information referred to as Wireless Sensor Networks155 These networks share data among sensor nodes that are send to a distributed system for the analytics of the sensory data

Another challenge is the storage of this bulk data Depending on the application there could be high data acquisition requirements which in turn lead to high storage requirements Currently the internet is already responsible for 5% of the total energy generated155 and this consumption will increase significantly when we start utilizing applications with multiple embedded sensors

Securityedit

Concerns have been raised that the Internet of things is being developed rapidly without appropriate consideration of the profound security challenges involved156 and the regulatory changes that might be necessary157 According to the Business Insider Intelligence Survey conducted in the last quarter of 2014, 39% of the respondents said that security is the biggest concern in adopting Internet of things technology158 In particular, as the Internet of things spreads widely, cyber attacks are likely to become an increasingly physical rather than simply virtual threat159 In a January 2014 article in Forbes, cybersecurity columnist Joseph Steinberg listed many Internet-connected appliances that can already "spy on people in their own homes" including televisions, kitchen appliances,160 cameras, and thermostats161 Computer-controlled devices in automobiles such as brakes, engine, locks, hood and truck releases, horn, heat, and dashboard have been shown to be vulnerable to attackers who have access to the onboard network In some cases, vehicle computer systems are Internet-connected, allowing them to be exploited remotely162 By 2008 security researchers had shown the ability to remotely control pacemakers without authority Later hackers demonstrated remote control of insulin pumps 163 and implantable cardioverter defibrillators164 David Pogue wrote165 that some recently published reports about hackers remotely controlling certain functions of automobiles were not as serious as one might otherwise guess because of various mitigating circumstances; such as the bug that allowed the hack having been fixed before the report was published, or that the hack required security researchers having physical access to the car prior to the hack to prepare for it

The US National Intelligence Council in an unclassified report maintains that it would be hard to deny "access to networks of sensors and remotely-controlled objects by enemies of the United States, criminals, and mischief makers An open market for aggregated sensor data could serve the interests of commerce and security no less than it helps criminals and spies identify vulnerable targets Thus, massively parallel sensor fusion may undermine social cohesion, if it proves to be fundamentally incompatible with Fourth-Amendment guarantees against unreasonable search"166 In general, the intelligence community views the Internet of things as a rich source of data167

As a response to increasing concerns over security, the Internet of Things Security Foundation IoTSF was launched on 23 September 2015 IoTSF has a mission to secure the Internet of things by promoting knowledge and best practice Its founding board is made from technology providers and telecommunications companies including BT, Vodafone, Imagination Technologies and Pen Test Partners168169

In 2016, a distributed denial of service attack powered by Internet of things devices running the Mirai malware took down a DNS provider and major web sites

Designedit

Given widespread recognition of the evolving nature of the design and management of the Internet of things, sustainable and secure deployment of IoT solutions must design for "anarchic scalability"170 Application of the concept of anarchic scalability can be extended to physical systems ie controlled real-world objects, by virtue of those systems being designed to account for uncertain management futures This "hard anarchic scalability" thus provides a pathway forward to fully realize the potential of Internet of things solutions by selectively constraining physical systems to allow for all management regimes without risking physical failure

Brown University computer scientist Michael Littman has argued that successful execution of the Internet of things requires consideration of the interface's usability as well as the technology itself These interfaces need to be not only more user-friendly but also better integrated: "If users need to learn different interfaces for their vacuums, their locks, their sprinklers, their lights, and their coffeemakers, it's tough to say that their lives have been made any easier"171

Environmental sustainability impactedit

A concern regarding Internet of things technologies pertains to the environmental impacts of the manufacture, use, and eventual disposal of all these semiconductor-rich devices172 Modern electronics are replete with a wide variety of heavy metals and rare-earth metals, as well as highly toxic synthetic chemicals This makes them extremely difficult to properly recycle Electronic components are often incinerated or placed in regular landfills Furthermore, the human and environmental cost of mining the rare-earth metals that are integral to modern electronic components continues to grow With production of electronic equipment growing globally yet little of the metals from end-of-life equipment are being recovered for reuse, the environmental impacts can be expected to increase

Also, because the concept of Internet of things entails adding electronics to mundane devices for example, simple light switches, and because the major driver for replacement of electronic components is often technological obsolescence rather than actual failure to function, it is reasonable to expect that items that previously were kept in service for many decades would see an accelerated replacement cycle if they were part of the IoT For example, a traditional house built with 30 light switches and 30 electrical outlets might stand for 50 years, with all those components still original at the end of that period But a modern house built with the same number of switches and outlets set up for IoT might see each switch and outlet replaced at five-year intervals, in order to keep up to date with technological changes This translates into a ten-fold increase in waste requiring disposal

Intentional obsolescence of devicesedit

The Electronic Frontier Foundation has raised concerns that companies can use the technologies necessary to support connected devices to intentionally disable or "brick" their customers' devices via a remote software update or by disabling a service necessary to the operation of the device In one example, home automation devices sold with the promise of a "Lifetime Subscription" were rendered useless after Nest Labs acquired Revolv and made the decision to shut down the central servers the Revolv devices had used to operate173 As Nest is a company owned by Alphabet Google's parent company, the EFF argues this sets a "terrible precedent for a company with ambitions to sell self-driving cars, medical devices, and other high-end gadgets that may be essential to a person's livelihood or physical safety"174

Owners should be free to point their devices to a different server or collaborate on improved software But such action violates the United States DMCA section 1201, which only has an exemption for "local use" This forces tinkerers who want to keep using their own equipment into a legal grey area EFF thinks buyers should refuse electronics and software that prioritize the manufacturer's wishes above their own174

Examples of post-sale manipulations include Google Nest Revolv, disabled privacy settings on Android, Sony disabling GNU/Linux on PlayStation 3, enforced EULA on Wii U174

See alsoedit

  • Home automation
  • Web of Things
  • Smart grid
  • Algorithmic regulation
  • Cloud manufacturing
  • Data Distribution Service
  • Device ecology
  • MCU Micro Controller Unit
  • Digital object memory
  • Indoor positioning system
  • Open Interconnect Consortium
  • OpenWSN
  • 5G

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Further readingedit

  • Chaouchi, Hakima The Internet of Things London: Wiley-ISTE, 2010
  • Chabanne, Herve, Pascal Urien, and Jean-Ferdinand Susini RFID and the Internet of Things London: ISTE, 2011
  • Hersent, Olivier, David Boswarthick and Omar Elloumi The Internet of Things: Key Applications and Protocols Chichester, West Sussex: Wiley, 2012
  • Pfister, Cuno Getting Started with the Internet of Things Sebastapool, Calif: O'Reilly Media, Inc, 2011
  • Uckelmann, Dieter, Mark Harrison and Florian Michahelles Architecting the Internet of Things Berlin: Springer, 2011
  • Weber, Rolf H, and Romana Weber Internet of Things: Legal Perspectives Berlin: Springer, 2010
  • Zhou, Honbo The Internet of Things in the Cloud: A Middleware Perspective Boca Raton: CRC Press, Taylor & Francis Group, 2013

External linksedit

  • The IoT Council

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