Many of us dream of owning intelligent homes where all gadgets link and exchange data. From the alarm bell to a cup of coffee are all ready for a new day. The lights automatically light up when you arrive and the smart devices respond to your voice commands to read the schedule as well as the message you need, then turn on the TV. Smart cars will automatically drive and avoid congested roads, which will help you arrive at the company on time and have time to prepare for a morning meeting.
You probably think these things only happen in science fiction movies. But now we can or are very close to that perspective. And all this new technology is laying the foundations of what people call “Internet of Things”.
What is IoT and what is IoT good for?
The term “Internet of Things” (IoT) was first used in 1999 by British pioneer Kevin Ashton. IoT describes a system in which objects in the physical world can be connected to the internet by sensors. Or as defined on Wikipedia, IoT is a world scenario, where each object or person is provided with a unique identifier, and all are capable of transmitting, exchanging information through a single network without direct human-to-human interaction, or human and computers to connect everything centrally and to exchange data with each other.
Imagine that everything you consider invisible is connected into the same network. For example, the wallet you are using is intergrated IoT technology. They have to check the amount of money in your wallet, the expiration date of papers such as: medical insurance, tuition deadline … and state us these paper status through SMS, facebook, skype, zalo …
More specifically, when combined with some medical monitoring devices, such as the current health monitoring braces or the electronic scales, refrigerator will show a warning message about weight, or blood glucose levels every time “a patient” opens the cabinet for the third of the day. At first, these electronic braces or scales may not have been designed to send information to the fridge. However, a software on a mobile, or on a home server, or on a cloud service, even software written on the same OS of that fridge, can be designed to aggregate information from all sources and ask the refrigerator to send a warning to the user. If we think as the old directions, in the world where DVD players must be connected to the TV with cable, and must be the correct cable type, plugged in the correct position, etc. The connection between medical equipment, electronic scales and … the above refrigerator sounds impossible. But in IoT world, developers will be able to connect nearly all devices produced towards this ecosystem, thereby creating completely new functions that we have never thought of before.
Is it great? Everything is in control, which helps you save a lot of time as well as avoid difficult situations of not mastering and managing everything around us.
How IoT work?
The miracle here is the sensor. Devices that need to be connected must be equipped with a sensor chip to switch, detect phenomena in the natural environment and turn it into data in Internet environment to process data and execute navigations in this Internet network in the way that the user wishes.
A typical scenario will happen as followings: when we get closer to the door, automated mechanisms integrated in our keys (or even our phones, credit cards, smartwatches) will automatically open the door remotely. The door lock sends wireless signals to the intranet in the house, first of all enabling the door and the hallway to activate. The air conditioning system, which has been put on hold when we leave, will continue to operate again. According to some pre-installed settings, even a coffee maker will be automatically activated to prepare a cup of fragrant coffee as soon as you step into the living room. Every device in a smart house communicates and works in harmony, which brings us to the simplest definition for IoT: “An IoT ecosystem is truly a world in which every device can work together. “
How do IoT devices communicate?
Most devices considered “smart” today mean that they are manufactured with wireless communication. Wireless communication protocols in the world of IoT are designed to meet the basic requirements: consume less power for receiving / broadcasting, less bandwidth (to reduce the burden on the wireless router and the system),… Some devices will communicate over Wi-Fi or Bluetooth, but most of them will take advantage of the connections using below the Zigbee GHz band.
Future development of IoT
According to Gartner, a research and technology consulting firm based in the United States, there will be more than 24 billion IoT devices that will be installed globally by 2020, which means that each person will own more than 4 devices connected to the Internet in the future. These devices are not just smartphones, tablets or laptops but also include all gadgets and means people use everyday to connect with each other or connect to the Internet. Through the connection and exchange of data, all appliances can become “more intelligent”.
Why go to IoT?
In terms of materiality, how can our quality of life raised? That is when our needs are met more than before. The demand here may be full of food, nice clothes, no traffic jam, less anxiety, no more miscellaneous stuff in mind … These demands will all be met by IoT. Currently, IoT has the greatest impact on five aspects of life:
The traffic apps will make you take the road more pleasantly. Thanks to road data, vehicles are constantly being updated to our mobile devices, avoiding the traffic jam at peak hours.
Popular apps nowadays are tracking your body condition, heart rate, or your sleep and giving you sensible advice.
– Apartment Management:
Intergrated and equipped with a variety of sensors and quick-turn algorithms, even homes become smart and able to ‘sense’ external effects in real time.
– Business Development:
The most obvious thing is that IoT helps businesses collect a lot of data from machines and consumers through sensors or digital tags for research and business development.
Current production and testing equipments are often attached sensors to monitor machine’s activities to detect early abnormalities and correct them immediately before the machine breaks down. In this way companies can avoid work delays and a lot of money due to broken machines.
– Environment Management:
The deployment of sensors to measure factors such as water or air quality, radiation or sensor to detect toxic chemicals, can help monitor the environment changes.
Internet of Things today is growing extremely strong. Everything around us is no longer inanimate objects. They will partly become our companions and help us in current life as well as in the future. Because life is creativity and non-stop development!