Internet of things

Concept of a network of connected devices

Fire in a tunnel, illustrating IoT in safety systems

The Internet of Things (IoT) refers to the network of physical objects—"things"—that are embedded with sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the Internet. These devices range from ordinary household objects to sophisticated industrial tools. With more than 7 billion connected IoT devices today, experts are expecting this number to grow to 22 billion by 2025.

History

The concept of a network of smart devices was discussed as early as 1982, with a modified Coca-Cola vending machine at Carnegie Mellon University becoming the first Internet-connected device, able to report its inventory and whether newly loaded drinks were cold. The term "Internet of Things" was coined by Kevin Ashton of Procter & Gamble, later of MIT's Auto-ID Center, in 1999.

Applications

IoT has numerous applications across various domains:

Consumer Applications

IoT technology is most synonymous with products pertaining to the concept of the "smart home", including devices and appliances such as lighting fixtures, thermostats, home security systems, and cameras, that support one or more common ecosystems, and can be controlled via devices associated with that ecosystem, such as smartphones and smart speakers.

Industrial Applications

William Ruh discussing IoT at IEEE Tech Ignite 2017

In the industrial sector, IoT is key to the Industrial Internet of Things (IIoT), which is a critical component of Industry 4.0. It enables the collection and analysis of data from industrial equipment, leading to improved efficiency, productivity, and safety.

Healthcare

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 aids.

Transportation

IoT can assist in the integration of communications, control, and information processing across various transportation systems. Applications of IoT extend to all aspects of transportation systems (i.e., 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, logistics and fleet management, vehicle control, and safety and road assistance.

Challenges

Despite the many benefits of IoT, there are also significant challenges:

Security

The interconnection of devices and systems creates more entry points for potential cyber attacks. Ensuring the security of IoT devices and the networks they connect to is a major concern.

Privacy

IoT devices collect a vast amount of data, including personal information, which raises concerns about privacy and data protection.

Interoperability

The lack of standardization in IoT technology can lead to compatibility issues between devices from different manufacturers.

Future Trends

The future of IoT is expected to be shaped by advancements in artificial intelligence, machine learning, and 5G technology. These advancements will enable more sophisticated data analysis and faster, more reliable connectivity.

A town in Hangzhou showcasing IoT integration

Related pages

• Smart city
• Machine to machine
• Wireless sensor network
• Big data
• Cloud computing