The basics of Internet of Things

Hi! How are you today! I’m Kevin Ke from National Taipei University of Technology. This section is the basics of IOT. The purpose of this section is to establish the foundation for the course, internet of things for active aging. From this course, basically we learn some idea and definition of the IOT, the key components of IOT, and the application of the IOT. And also we will cover some problems people concern about which is the safety of the wireless. Okay so first we are going to give the definition, what is the IOT? Internet of things. Again, we start from internet. So we define internet, define things, then we combine both together, then we give the definition for the IOT.

Internet as you know it uses a worldwide interconnected networks. Here we talk about the computer networks is basically all devices possesses the computing capability is what to mean a computer. So cellular phone will be a computing devices. It will connect cellular phone to the internet, this is also called the computer networks. So this interconnected networks we talk to each other based on standard practical. Again this is unnecessary. By practical, we have lots of rules to governor the communication between devices. So this is internet, the protocol suite we applied for the internet is so called the TCP/IP. As you heard, the TCP/IP internet. We look at a few ideas about internet.

So basically, internet is the networking capability to link devices together is network of networks. Okay this is the example of internet backbone from Wikipedia. You see lots of dots in the figures. If we amplify the dots, basically 1 dot represents one networking devices we called a router. This is in charge of forwarding data package from one place to another. Basically if we have data generated from source to destination the data has been traversed to lots of nodes this is what we mean, a route or a path. Basically a backbone provide this kind of route and path for networks or subnetworks. So you see, from the internet backbone worldwide, there are lots of routers, networking devices in between.

So you can look at…you see we pick up bits, one small area it contains so much devices. You see for each devices, we can have a number associated. For example, you can see largest one we call it 207.285.240.183 something. Okay this is what you mean, the IP address. Remember in previous slides, we talk about the TCP/IP. So each devices we have to be traceable, so we can communicate to the devices, trace , and identify will be necessary. This IP address is what we need for the identification. So this is number for the IP address. Basically, you have the experience surfing the internet. You should have the idea about IP address.

So far we apply the IP view for practical internet connection. So for each IP address, we have four digits. This is one of the example, is the internet. We show this figure to indicate how complicated the internet is. Things, what is things? Basically, it can be referred to any kind of devices or objects. Those devices basically if only talk about the things. Is not precisely identifiable. It means you cannot address this. That means worldwide cannot be located. But if connected devices thinks together, we have to be addressable. We have to locate where the device is. So this is things. For internet of things. Those things will be addressable and can be connected together.

Now we can combine this two together to define what we mean by IOT. So IOT will be the combination of previous two ideas. It will be interconnection of uniquely identifiable devices. So identifiable, we already explained before. Uniquely means we should be addresses each devices individually without confusion. This device may include sensors, machines,  appliances, vehicles, buildings, from small, such as a toothbrush, to a big devices or to a buildings, they been connected together. This device all imbedded with network connectivity so we can identify objects, the devices. The devices can collect data, exchange data within each other and this data can be propagated through internet and to be used by the human beings.

The foreign figures indicates the possibility of internet of things. So you can see, as large as we have the airplanes, small as we have microphones that can all connected together. Through the internet, to share data, excute the data, and to provide certain kind of application for the users, the human being. In the slide you will see the URL, the uniform resource locator with a small font. This is the source of the figures. For you information, so we can refer to this webpages for more details. So this is the first part we talk about internet of things. Let that finish, formally. Then we look at the marketing situations.

So this is one of  the research done by the IEEE and the proposed published on the IEEE communication systems and tutorials. And although this paper was published one year ago, but the facts basically will be almost the same as we project in the future by 2025. The market share of the IOT can be categorized into different application areas. For example, like we have retail, security, agriculture, also can apply to the smart phone designs, military, and so forth. But if you look at the biggest part of the IOT market share, they will be in health. So this course we call IOT for active aging will be right for this parts. And then we will look at another information.

This is estimated by the IDC, the international data corporation, the Internet of things market will be growth, which is no doubt of it, and is projected by 2020. The market share, the value will be increased to $3 trillion. And also, a huge number of devices will be connected to the internet. This is projections from 2012 to 2020. You can see, almost 50 billion of devices will be connected together. This is the capacity of IOT in the future 50 years. To the right, you will see the penetration rate. That means among all devices, almost 5.3 percent of devices can be connected together to form as a component, as a part of IOT.

This is a projection, and we hope and we expected this will be in effect in the near future.