What is the Internet of Things?

What are the core technologies of the Internet of Things?

The Internet of Things (IoT, Internet of things) is the "Internet where everything is connected". It is an extension and expansion of the Internet based on the Internet. It combines various information sensing devices with the Internet to form a huge network that can realize at any time

, the interconnection of people, machines and things anywhere.

1. Radio Frequency Identification Technology Radio Frequency Identification (RFID).

RFID is a simple wireless system consisting of an interrogator (or reader) and many transponders (or tags).

The tag is composed of a coupling element and a chip, and each tag has an electronic code that only extends one entry.

The tag is attached to the object to identify the target object, and it transmits radio frequency information to the reader through the antenna. The reader is the device that reads the information.

RFID technology allows objects to "speak".

This gives the Internet of Things a characteristic that is traceability.

That is to say, people can grasp the exact location of objects and their surrounding environment at any time.

2. Sensor network MEMS is the English abbreviation of Micro-Electro-Mechanical Systems.

It is an integrated micro device system composed of micro sensors, micro actuators, signal processing and control circuits, communication interfaces and power supplies.

Its goal is to integrate the acquisition, processing and execution of information to form a multi-functional micro system and integrate it into a large-scale system, thereby greatly improving the automation, intelligence and reliability level of the system.

3. M2M system framework M2M is the abbreviation of Machine-to-Machine/Man. It is a networked application and service centered on intelligent interaction of machine terminals.

It will enable intelligent control of objects.

M2M technology involves five important technical parts: machine, M2M hardware, communication network, middleware, and application.

Based on the cloud computing platform and intelligent network, decisions can be made based on the data obtained by the sensor network, and the behavior of the object can be changed for control and feedback.

4. Cloud computing Cloud computing aims to integrate multiple relatively low-cost computing entities into a perfect system with powerful computing capabilities through the network, and with the help of advanced business models, end users can obtain services with these powerful computing capabilities.

If computing power is compared to power generation capacity, then the shift from the ancient single-machine power generation model to the centralized power supply model of modern power plants is like the shift from the single-machine computing model that everyone is accustomed to now to the cloud computing model, and the "cloud" is like a power plant, with the capabilities of a single machine.

Unparalleled powerful computing power.

Extended information: Internet of Things Function 1. The function of obtaining information 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 use the felt state of things.

expressed in a certain way.

2. The function of transmitting information is mainly the steps 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, which is often said.

communication process.

3. The function of processing information refers to the process of information processing, using existing information or perceived information to generate new information, which is actually the process of decision-making.