Although the embedded system has a history of more than 30 years, it has always been hidden behind it. Since the Internet of Things became a national strategy, the embedded system has gone from the backstage to the front. This article mainly introduces the relationship between embedded and Internet of Things. Secondly, it introduces the characteristics and features of embedded and Internet of Things. 1. The Internet of Things is an important part of a new generation of information technology. It is the integration of the Internet and embedded systems into advanced stages. 2. As an embedded system composed of important technologies of the Internet of Things, the perspective of the embedded system helps to profoundly and comprehensively understand the nature of the Internet of Things. 1. Both general-purpose computers and embedded systems can be traced to semiconductor integrated circuits. The birth of microprocessors provided a normalized intellectual kernel for human tools. 2. General-purpose microprocessors and embedded processors based on microprocessors form the two branches of the modern computer knowledge revolution, namely the era of independent development of general-purpose computers and embedded systems. 3. The general-purpose computer has experienced an independent development path from the smart platform to the Internet; the embedded system has experienced the independent development path from the smart thing to local intelligence. 4. The Internet of Things is the result of the convergence of the general-purpose computer's Internet and the embedded system's stand-alone or local physical property at the advanced stage. 5. In the Internet of Things, the infinite dispersion of microprocessors, in the form of "smart cells", gives the intellectual characteristics of the "wisdom planet" of the Internet of Things. An embedded system is a dedicated computer system that is part of a device or device. Typically, an embedded system is an embedded processor control board with control programs stored in ROM. In fact, all devices with digital interfaces, such as watches, microwave ovens, video recorders, and automobiles, all use embedded systems. Some embedded systems also include operating systems, but most embedded systems are controlled by a single program. logic. Defined from the application object, the embedded system is a combination of software and hardware, and can also cover attachments such as machinery. The domestically recognized embedded system is defined as an application-centric computer technology-based software and hardware that can be tailored to meet the strict requirements of the application system for functions, reliability, cost, size, and power consumption. 1, special hardware and software can be tailored and configurable (embedded system is application-oriented, and the difference between the general system is the system function specific) 2, low power consumption, high reliability and high stability 3, the software code is short compared with PC resources (hardware resources, memory, etc.) 4, the code can be cured in the memory chip or microcontroller instead of the presence of the disk 5, real-time 6, interactive (usually does not require keyboard and mouse interaction between the main simple) 7. It is a product that combines advanced computer technology, semiconductor technology, and electronic technology with the specific applications of various industries. The Internet of Things is an important part of a new generation of information technology, and it is also an important stage of development in the “informatization†era. Its English name is: "Internet of things (IoT)". As the name implies, the Internet of Things is the Internet that connects objects. This has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extension and expansion network based on the Internet; Second, its user end extends and expands to any item and item, and carries out information. Exchanges and communications, that is, objects rest. The IoT is widely used in the convergence of networks through intelligent sensing, recognition technology, and pervasive computing and other communication-aware technologies. It is therefore also known as the third wave of the development of the world's information industry following the computer and the Internet. The Internet of Things is an application extension of the Internet. It is not so much the Internet of Things as a network. It is better to say that the Internet of Things is a business and an application. Therefore, application innovation is the core of the development of the Internet of Things. Innovation 2.0, with user experience as the core, is the soul of the development of the Internet of Things. First of all, it is the wide application of various sensing technologies. Massive types of sensors are deployed on the Internet of Things. Each sensor is an information source. Different types of sensors capture different information content and information formats. The data obtained by the sensor has real-time nature, periodically collecting environmental information according to a certain frequency, and constantly updating the data. Second, it is a kind of ubiquitous network built on the Internet. The important foundation and core of the Internet of Things technology is still the Internet. Through the integration of various wired and wireless networks and the Internet, the information of objects is delivered in real time and accurately. The information collected by sensors on the Internet of Things needs to be transmitted through the network. Since the number is extremely large, massive information is formed. During the transmission process, in order to ensure the correctness and timeliness of the data, it is necessary to adapt to various heterogeneous networks and protocols. . Again, the Internet of Things does not only provide sensor connectivity, but it also has the intelligence to handle it, enabling intelligent control of objects. The Internet of Things combines sensors and intelligent processing, and utilizes various intelligent technologies such as cloud computing and pattern recognition to expand its application fields. 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