The Internet of Things is the three-dimensional Internet. If the Internet is a one-dimensional interconnection, and the mobile Internet is a two-dimensional interconnection, then the Internet of Things is a three-dimensional interconnection. It connects people, machines, and things, and can realize the interconnection of people, machines, and things at any time and in any place.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
The Internet of Things is the three-dimensional Internet. If the Internet is one-dimensional interconnection, the mobile Internet is two-dimensional interconnection, and the Internet of Things is three-dimensional interconnection.
The Internet of Things connects people, machines and things.
The Internet of Things (IoT, Internet of things) is the "Internet where everything is connected". It is an extended and expanded network based on the Internet. It combines various information sensing devices with the network to form a huge The network enables the interconnection of people, machines and things at any time and anywhere.
Features:
Basic features of the Internet of Things From the perspective of communication objects and processes, the information interaction between things and people and things is the core of the Internet of Things . The basic characteristics of the Internet of Things can be summarized as overall perception, reliable transmission and intelligent processing.
Overall perception—You can use radio frequency identification, QR codes, smart sensors and other sensing devices to perceive and obtain various types of information about objects.
Reliable transmission—Through the integration of the Internet and wireless networks, object information is transmitted in real time and accurately to facilitate information exchange and sharing.
Intelligent processing - using various intelligent technologies to analyze and process the data and information sensed and transmitted to achieve intelligent monitoring and control. Based on the above characteristics of the Internet of Things, combined with the perspective of information science, and focusing on the flow process of information, the functions of the Internet of Things in processing information can be summarized:
(1) The function of obtaining information. It is mainly the perception and identification of information. The perception of information refers to the perception and sensitivity of the attribute state of things and the way they change; the identification of information refers to the ability to express the felt state of things in a certain way. (2) The function of transmitting information. It is mainly the process of information sending, transmission, reception, etc., and finally the task of transmitting the acquired state of things information and the way it changes from one point in time (or space) to another point. This is what is often referred to as the communication process. (3) The function of processing information. It refers to the process of information processing, using existing information or perceived information to generate new information, which is actually the process of making decisions. (4) Function of effect information. It refers to the process in which information finally exerts its effect. It has many forms of expression. The more important thing is to always keep the object in a pre-designed state by adjusting the state of the object and its transformation method.
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