I believe that many people have heard the term " cloud management terminal ", and "cloud" refers to the equipment and software that provide services and support for the terminal in the cloud. "End" refers to those devices that can be connected to the cloud through the network (such as mobile phones, computers, sensors, actuators, home appliances and other end products). The "pipe" is the pipe connecting the cloud and the terminal, which is the Internet of Things communication technology mentioned in this article.
In the Internet of Things industry, in phone number list addition to "cloud management", the term "edge computing" is also well-known, but today we mainly talk about the communication technology of the Internet of Things, and we will talk about edge computing later when we have time.
An overview of communication technology
First of all, according to the application and characteristics of various communication technologies, I made a simple division, as shown below:
WIFI, UWB, Bluetooth, ZigBee, and RFID are all short-distance communication technologies, and they can be used to build private networks (the purpose of building private networks is to support the requirements of multi-device collaborative edge computing, which will be discussed in detail later) , among which WIFI, UWB and Bluetooth all belong to the technologies with high communication rate, which can be used for the transmission of audio, video or pictures. Compared with ZigBee and RFID, the communication rate is much lower, but they each have other advantages which we will describe in detail later.