You can connect a lot more to smart devices than just coffee machines. There are several personal and business application scenarios where IoT can enhance existing solutions or even create new approaches. In this section, we will discuss the most important applications of IoT – and look at how the opportunities offered by IoT are continuing to expand. Please note, some of these examples are more like a concept today, while others are existing products.
Smart homes
A studio, flat, or even an entire house can be equipped with IoT technology according to our needs, habits and daily routines. When building up an IoT system by yourself, you are the integrator who puts together these smart "things", connects them to the internet, and designs and describes your needs. Building up an IoT system to make a flat or house smart and able to respond to our needs requires basic IT skills and general self-knowledge as well. Several companies sell IoT devices to owners to set up an IoT-based solution so they can have a customised home that responds to their habits and needs.
In most IoT systems, as well as in IoT-enabled homes, sensors and actuators form the complete local IoT solution. To supervise and interact with the system, dedicated controllers or specific applications on smartphones and tablets can be used.
Considering the complete network of IoT sensors, our home can become even smarter in many ways, like security and energy efficiency.
These and further sensors and actuators can be involved in an IoT enabled smart home. The user, as the integrator, decides which components to include to meet their specific needs.
Healthcare
If we can equip our houses with IoT devices, what about ourselves? Can we have an IoT-enabled body? Of course we can! But don't worry – this doesn't mean that you necessarily need implants. There are many IoT sensors that you can wear without any hassle – smartwatches, smart shoes, or a blood oxygen monitor, for example – and IoT devices like smart pillows and smart medicine cabinets you can use.
With the help of these sensors, a large amount of data about the user can be collected. This can then be analysed, by the user, by professionals or by computer programs in order to have a healthier life or better performance in sports.
Even if just the currently available IoT devices were used in sports and healthcare, people would have a significant improvement in their overall health status. And we are only at the beginning of the IoT revolution!
Agriculture
We saw in the previous two case studies how IoT can improve personal well-being, life at home and health. What else do we need? Food! Let's see how IoT can help us to consistently produce better quality food – and more of it – at lower costs.
As the population grows, food production levels must keep pace without a degradation in quality. IoT may bring a true revolution in agriculture.
For most of humankind's history, data was not collected by machines, but farmers shared their experiences with their family and neighbours. Based on their own and shared experiences, they developed a strategy for growing plants and breeding animals. And this strategy was always upgraded with the latest experiences and adapted to environmental and weather changes.
But now, the needs of society have changed and increased, and production has adapted to it. The utilisation of data is the biggest success factor in production planning. Data collection is not a manual process anymore – it's automatic and can operate worldwide. If a data-based strategy works in the USA, it would probably work in Europe too so long as all the important aspects are considered, like temperature, humidity, seed/animal types, minerals in water, and so on.
When sensors are used to collect data in agriculture, and the data is used to make decisions, we already have smart agriculture. In a completely IoT-based smart agriculture system, sensors not only collect data, but an automated strategy adapts the process according to the collected information to improve production.
In agriculture, almost every nuance of production can be monitored by sensors: temperature, humidity, soil moisture, nutrient content, weights, hours of sunlight, etc. The collected data is sent to a central computer, where farmers and applications analyse it to make smarter decisions about the next steps.
What about animals? Indeed, we would like to have healthy animals. An animal's daily activities can also be monitored with sensors on their collars or legs, for instance. Based on the movement patterns collected by the collar, the animals' location and activity type (resting, moving, eating) are known. Based on this data, a consistent daily routine can be developed which optimises the production of milk, eggs, and so on. Animals may also have IoT sensors inside their body. By helping to ensure that animals are healthier, the result can be an improvement in quality and quantity for products like milk – which also means humans will be healthier too.
Manufacturing
After understanding how IoT can improve our life (home, health and food), let's think about the other sectors where IoT can achieve significant enhancements.
With manufacturing, the story is similar to agriculture – without collected data the experience (and feedback from customers) determined the strategy of the next production cycle. By making a factory IoT enabled, data can be collected from several sources, which helps to optimise production in terms of quality, quantity, consistency and cost efficiency.
After the previous examples, you should have many ideas about the types of sensors that can be applied in manufacturing. In manufacturing, IoT sensors can be used to measure parameters of:
the environment, like humidity, temperature, air quality, seismic activities, noise levels and sounds
the production process, with camera images, current and voltage, torque and angle measurements, to name just a few
Machine diagnostics
In production the data collected from IoT sensors can not only be used for optimised production performance, but for predictive maintenance as well. To do this we collect data from the production process when we are sure that everything works well. Later, if some machines in the production line have a minor issue (such as gears becoming worn), which doesn't have a negative effect on the products produced, the collected data can still indicate the early symptoms of later failures. This means the required maintenance can be scheduled with the least downtime – which saves time and costs.
Education
Smart schools can be equipped with IoT-enabled sensors, including in the building, the classrooms, the gym and the canteen. The building can be equipped with IoT devices in a similar way to smart homes to optimise costs and improve security.
Transport
Autonomous driving will probably change the world. However, in 2020, the best approaches are mostly so-called “Level 2” solutions – which means partial automation, including steering, acceleration and braking while the driver is holding both hands on the steering wheel to intervene if needed. However, it is likely that humanity will be able to achieve a higher level of autonomous driving in the future. As self-driving vehicles are connected to the internet, these machines involve many IoT-enabled components.
Smart cities
If all or most of the techniques discussed so far are used, then cities can be transformed into IoT-enabled smart cites. In smart cities, sensors and actuators are used on both a micro and macro scale. Microscale means within the different sectors where IoT is applied – examples of which were discussed in this section. Macroscale refers to connecting these individual sectors with each other to build a city-wide network of IoT devices. Smart cities involve IoT-enabled devices on many levels, like smart homes, smart hospitals, smart schools, autonomous driving, smart bikes, smart transportation, smart waste management, smart streetlights, and the internet everywhere, amongst other things.
As the number and types of connected devices increase, there will certainly be more sectors and scenarios that are improved by IoT. That’s why it’s important to know and follow the latest news about IoT and to use these technologies in your personal and professional life.