Nov 11, 2020
Internet of Things in China
The Internet of Things is an important part of the new generation of information technology and an important development stage in the "informatization" era. Its English name is: "Internet of things (IoT)". As the name suggests, the Internet of Things is the Internet of things connected. This has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet; Second, its user end extends and extends to any item and item for information Exchange and communication, that is, the interaction between things. The Internet of Things is widely used in the integration of networks through communication perception technologies such as intelligent perception, recognition technology and pervasive computing. Therefore, it is called the third wave of the development of the world's information industry after computers and the Internet. The Internet of Things is the application expansion of the Internet. The Internet of Things is not so much a network as it is a business and an application. Therefore, application innovation is the core of the development of the Internet of Things, and innovation 2.0 with user experience as the core is the soul of the development of the Internet of Things.
Active point definition: use local network or Internet and other communication technologies to connect sensors, controllers, machines, people and things together in new ways to form a connection between people and things, things and things, and realize informatization and remote management and control And an intelligent network. The Internet of Things is an extension of the Internet. It includes the Internet and all the resources on the Internet. It is compatible with all applications of the Internet. However, all the elements (all equipment, resources and communications, etc.) in the Internet of Things are personalized and privatized.
The Internet of Things is moving forward rapidly, and capital, market, government, and scientific research are all trying to "weave the Internet". It can be said that "the world is booming, all for profit; the world is bustling, all for the Internet of things." The Internet of Things has begun to be heavily documented in the development plans of local governments, and in the fields of electricity, transportation, logistics, etc., relying on some pre-existing prototypes of the Internet of Things, the Internet of Things has been included in the key category in the 12th Five-Year Plan. .
The China Internet of Things Research and Development Center predicts that the market size of China’s Internet of Things industry will reach 200 billion yuan in 2010. By 2020, the overall market size of China’s Internet of Things will reach trillions of yuan, with a compound annual growth rate of over 30%. The market investment prospects are huge .
Adjust the pace Top level layout
The Internet of Things is different from the vertical division of general fields. The Internet of Things is a horizontally spread field with the characteristics of strong discipline integration, long industrial chain, and wide penetration. The needs of my country's Internet of Things mainly exist in the smart grid, transportation energy logistics, home furnishing, environment and safety testing, medical health, precision agriculture and animal husbandry, industrial and automated control, national defense and military, finance and service industries. Although the application of the Internet of Things can be ubiquitous, it is still dominated by partial closed-loop applications and government-led project applications, and there are relatively few applications across industries, departments, and application chains.
At present, the development of the Internet of Things lacks top-level design and overall planning at the national level. There are obvious differences in the definition, connotation, and industry scope of the Internet of Things in various regions and departments. The situation of blindly following the trend and rushing forward is more prominent. System obstacles such as industry monopoly, segmentation, and self-contained systems restrict the integration and benign interaction of IoT technologies, industries, and applications; the segmentation caused by administrative decentralization weakens the ability to collaborate on strategic emerging industries.
Some cities lack a clear judgment on the law and nature of the development of the Internet of Things, and entrust system solutions such as urban informatization to multinational companies to take full responsibility, squeezing the space for independent innovation and development of the Internet of Things industry in my country and the market share of local enterprises, and also bring The issue of information security. The development of the Internet of Things is not only a technical issue, but also involves political, legal and national security issues. Only when laws, regulations and policies are perfect can the Internet of Things develop in depth.
When swarms, what is easy to lose is the adjustment of long-term planning and strategic direction. Some experts suggest that a high-level government-industry-university-research alliance should be established to organize and guide; to achieve overall control over the development of the Internet of Things under the principle of maximizing national interests, use regional and industry characteristics to guide differentiated development.
Until now, there are still many supporters of the "bubble theory" of the Internet of Things. It is not important to discuss whether it is a bubble or not, because the concept of the Internet of Things is still in the process of development, and its development period will take 10 or even 20 years. Therefore, during the warm-up period of 3 to 5 years, it is even more necessary to adjust the pace and deploy with foresight.
Hardware has to say "hard words"
In terms of technology, the foundation and core technologies of the Internet of Things are still very lacking. The convenience of introducing technology has to a certain extent caused the lack of accumulation of core basic technology in our country. Our sensor design and manufacturing industry is almost blank, and it is likely to become the dumping target of foreign businessmen who control almost the entire sensor market. Take the embedded system as an example. Its hardware relies on foreign technology, and there is a big gap between chips, platform software, and development tools. 95% of embedded CPUs rely on imports. In platform software such as embedded operating systems, databases and development tools, foreign brands have an absolute advantage.
The three-layer architecture of the Internet of Things is divided into perception, transmission, and application. The first to break out will be the demand for the perception layer, and some of the requirements for hardware on this layer cannot be met by domestic manufacturers. Although the RFID industry chain has been initially formed, there is still a gap in technology and corporate strength with developed countries. UHF and active RFID have not formed overall industrial capabilities, and the independent intellectual property rights of tag chips are poor.
In addition, the factor restricting the development of the Internet of Things industry is the lack of a unified standard system and mature business model. At present, standards are still fragmented, lacking, and inconsistent. Standard formulation is not sufficiently integrated with market applications, and integration with international standards is not enough. Only by finding a suitable business model and guiding civilian demand can we achieve a benign transition from government investment to social investment.
Inverter is an extremely widely used product. Based on the Internet of Things technology, it can collide with huge sparks.
A new energy inverter based on the Internet of Things. It includes a power inverter main circuit, a main control circuit, and a data transmission circuit. The power inverter main circuit includes a pre-stage boost circuit, a post-stage inverter circuit and a filter that are connected in sequence. The front-end isolation drive module, the back-end full-bridge drive module, the voltage and current detection module, the power supply circuit and wireless module and the single-chip unit, the front-end isolation drive module, the back-end full-bridge drive module, and the voltage and current detection module are connected in turn by the control circuit. It is connected to the front stage boost circuit, the rear stage inverter circuit, and the output terminal. The new energy inverter converts different specifications of DC into 220V, 50HZ AC to meet people's electricity needs. It has high performance and low cost. , Low power consumption. Realize intelligent identification, monitoring, and management. Remote monitoring through GPRS and WiFi enables faster data transmission, smarter and safer. It can analyze various indicators in time, and make correct judgments and guidance.