RFID (Radio Frequency Identification) technology is a wireless automatic identification technology, also known as electronic label technology. RFID technology has many advantages, widely used in transportation, logistics, security, anti-counterfeiting and other fields, as an upgraded product of barcode and other identification technologies. The huge market demand in recent years has led to the rapid development of RFID. The connotation of "Internet of Things" originates from the concept that RFID represents the objective object and uses the network to exchange data, and is gradually formed by expanding, extending and perfecting. The concept of Smart Grid and Electronic Product Code Network (EPC Network) has been immediately recognized by governments, enterprises and academia, and it has rapidly spread around the world under the mutual promotion of demand and R&D. In this paper, while reviewing the status quo and key technologies of smart grid and Internet of Things, the application prospect of China's Internet of Things technology in smart grid is put forward, and the technology framework of IoT in smart grid is proposed under the application prospect. First, the concept of the Internet of Things, smart grid 1.1 The concept of the Internet of Things According to the research report released by the RFID and Internet of Things Research Projects Group under the EU's 7th Framework on September 15, 2009: The Internet of Things is an integral part of the future Internet and can be defined as a standards-based and interoperable communication protocol. . And a self-configuring, dynamic global network infrastructure. The "objects" in the Internet of Things have identification, physical attributes and substantial personality, using intelligent interfaces to achieve seamless integration with the information network. The organization's main research aims to facilitate networking between different RFID and IoT projects within Europe; to coordinate IoT research activities including RFID; to balance professional technology to maximize research results; and to coordinate resume mechanisms between projects . 1.2 The concept of smart grid Through information technology, intelligent communication will be carried out in all aspects of the power grid system for energy resource development, conversion (power generation), transmission, distribution, power supply, electricity sales and electricity consumption to achieve precise power supply, complementary power supply, and improved energy efficiency. Power supply security, saving the cost of electricity. Such a power network is called a smart grid. According to the US Energy Bureau's Modern Grid Development Report, the current seven characteristics of the general smart grid are discussed: 1) Ability to self-heal (self-healing) 2) Inspire users to actively participate in the operation of the grid (incentive) 3) Resist the attack (security) 4) Provide high quality power and reduce power loss (high quality) 5) Can accommodate various forms of power generation and storage (new energy participation) 6) Prosperity of the electricity market 7) Optimize equipment operation and reduce grid operation costs By creating an open system and building a shared information model, integrating data in the system, you can optimize the operation and management of the grid, make the grid smarter, and improve the reliability, management efficiency and service of the grid from three levels of the Internet of Things. Level. In order to achieve sustainable energy development, improve system stability and energy efficiency, smart grids urgently need to be closely integrated with IoT technology. Second, the development of the Internet of Things and smart grid 2.1 The development of the Internet of Things in China At present, China has become the world's manufacturing center, information technology is developing rapidly, and Internet of Things technology research is imminent. The Internet of Things can be divided into a three-tier system consisting of a perception layer, a network layer and an application layer. IoT Layer 3 Reference Architecture Comprehensive awareness, reliable delivery, and intelligent processing are the core capabilities of the Internet of Things. Comprehensive perception refers to the use of RFID, QR code, GPS, camera, sensor, sensor network and other means of sensing, capturing, and measuring to collect and acquire information from objects at any time and any place. Reliable transmission refers to the integration of various communication networks with the Internet, and the access of objects to the information network for reliable information interaction and sharing anytime and anywhere. Intelligent processing refers to the use of various intelligent computing technologies such as cloud computing and fuzzy recognition to analyze and process massive amounts of data and information across regions, industries and departments, and to enhance insights into various activities and changes in the physical world and economy. Force to achieve intelligent decision-making and control. 2.2 The development of smart grid in China China's smart grid research started relatively late, and it has been fully matured and industrialized with relatively few results from the two perspectives of large power grid and medium and low voltage grid. However, research results in many aspects have laid a certain foundation for the development of smart grid. In 2009, the state grid investment reached 350 billion yuan, the focus remains on special, ultra-high voltage power grids and cross-region power transmission projects. Since 2009, the State Grid has invested 560 billion yuan in 3 to 5 years, 60-80% invested in remote control, interactive intelligence, etc. There are two prominent contradictions in the current status of China's power grid construction: a. With the rapid development of China's social economy, power consumption has grown very rapidly, and the task of meeting power demand is heavy. b. China's energy resources distribution and economic development are extremely unbalanced. At the same time, the existing power grid structure is not strong enough, and the impact on economic development is great. Considering the current situation of China's power grid construction, in the construction of power grids with Chinese characteristics, we should refer to the experience of European and American countries to develop practical and feasible routes and plans to build a strong smart grid. Third, the application prospect of the Internet of Things in the smart grid Researchers in China's research on IoT information services [4-6] Later in developed countries, they have gradually developed their own innovations while tracking research in developed countries. Chinese code centers and Chinese standards are involved in this research. Associations, AIM China, Fudan University Auto.ID China Lab, Beijing University of Aeronautics and Astronautics and other scientific research institutions and some enterprises have achieved some initial results. At the same time, some well-known enterprises engaged in RFID research and development in China submitted during the two sessions in 2005. The proposal of “Adapting to the Needs of Social and Economic Development, Establishing China's Logistics Internet Project†proposed the development of China Internet of Things research and planning. At present, the leaders of relevant ministries have conducted investigations and demonstrations on this proposal. Some publications and websites have become Internet of Things information services. Discussion position. On January 7, 2010, at the "Information and Communication Technology Support Smart Grid Seminar", Liu Jianming, the general manager of State Grid Information and Communication Co., Ltd., gave a report entitled "Application of Internet of Things Technology in Smart Grid" at the meeting. It is clear that ICT is fully prepared for the application of IoT technology in smart grid. This paper proposes the architecture of the smart grid IoT based on the research status of the domestic Internet of Things: Smart Grid IoT Service Information Architecture The smart grid WSN sensing layer includes two-dimensional code tags and readers, RFID tags and readers, cameras, various sensors, sensor networks (referring to an autonomous network composed of a large number of various sensor nodes, self-organizing, self-healing) The main function of the WSN sensing layer is to sense and recognize objects, collect and capture information. The smart grid optical network layer includes optical cables, optical networks composed of optical transceivers, and IoT management centers and information centers that use the capabilities of the network to intelligently process massive amounts of information. In other words, the optical network layer must not only have the ability of the network, but also improve the ability of information processing. At the same time, it analyzes and processes the data and information provided by the massive Internet of Things, enhances the insight into the smart grid, and realizes the real intelligence of the grid. The smart grid application layer is a solution that combines the needs of the Internet of Things technology with the smart grid to realize intelligent application of the grid. The smart grid finally realizes the deep integration of information technology and smart grid through the application layer, which has a wide impact on the development of smart grid. The key to the application layer lies in the informationization process, which can meet all the links of the power grid system, carry out intelligent communication, realize the precise power supply, complementary power supply, improve energy utilization, power supply security, and save the cost of electricity. Needs analysis and internal sharing of information. Fourth, the conclusion IoT technology has a large part of technology in the current digital substation to adapt to it, and the current national grid communication network is a private network is not connected with telecommunications and other networks, security has a strong guarantee. With the further development of smart grid and IoT technology, IoT technology will infiltrate into the development and construction of smart grid, which has important economic value and research significance. This paper provides the application of IoT technology in smart grid. Certain reference. This category includes the heavy duty rigid casters we produce, the brackets are heavy duty rigid brackets, and the single wheels are heavy duty single wheels made of various materials. Iron Core Rigid Casters,Heavy Duty Iron Core Casters,Heavy duty wheels,Heavy Duty Rigid Casters L&T CASTER WHEEL CO., LTD , https://www.lntsco.com