As an important energy supply facility of the country, power security is the top priority. As a powerful assistant to ensure the safe operation of the power industry, security products have always acted as guardians in the field of power. From the perspective of the application of traditional security products, security applications in the power industry mainly focus on unattended substations, transmission lines, and safe production. Among them, unattended substations are the focus of application. With the emphasis of the National Development and Reform Commission on power emergency management and the popularization of various video technologies, traditional security applications are quietly undergoing new changes. Smart grid development is accelerating. What is a smart grid? What is the status of development in China? Through informatization, all aspects of the power grid system of energy resource development, conversion (generation), transmission, distribution, power supply, electricity sales and power consumption can be intelligently exchanged to achieve accurate power supply, complementary power supply, and improved energy utilization Power supply is safe and the goal of saving electricity cost. Such a power network is called a smart grid. The research on smart grid in China started relatively late, starting from two angles of large grid and medium and low voltage grid at the same time. It has been fully mature and relatively few industrialization achievements. But the research results in many aspects have laid a certain foundation for the development of smart grid. In 2009, State Grid's investment reached 350 billion yuan, with the focus still on extra-high voltage power grids and cross-region power transmission projects. Since 2009, the State Grid has invested 5 to 60 billion yuan in 3 to 5 years, with 60-80% invested in remote control and interactive intelligence. There are two prominent contradictions in the current construction of China's power grid: a. With the rapid development of China's social economy, power consumption has grown rapidly, and the task of meeting power demand is arduous. b. The extremely uneven distribution of China's energy resources and economic development. At the same time, the existing power grid structure is not strong enough, which has a great impact on economic development. 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 formulate practical routes and plans to build a strong smart grid. High-definition development helps the power industry Due to technical limitations, analog cameras have insufficient grasping of details, and there are often situations where people see things being stolen but cannot see their faces. At the same time, the dispatch center introduces the fifth remote-remote for real-time monitoring of the on-site operation of the substation. Depending on the situation, "remote viewing" requires that the duty personnel in the remote dispatching center see through the video monitoring system whether the meters, switches are closed, and the appearance of the substation equipment is abnormal. The standard definition images provided by traditional analog cameras simply cannot meet the above requirements. Therefore, the introduction of high-definition monitoring technology will become the development trend of the power industry monitoring system. The value that HD brings to customers in the power industry: â— The image details are more vivid HD has obvious advantages over standard definition in detail performance. From the resolution point of view, the resolution of 720p is 9 times that of CIF, and the resolution of 1080i / 1080p is 20 times that of CIF. Under the same display environment , HD will be much clearer. â— Image color reproduction is more realistic In the field of video surveillance, analog surveillance cameras usually use composite video streams for transmission. Although compared with other analog transmission methods, the transmission distance of composite video streams is farther, but because the luminance and chrominance signals in the composite video signal are mixed transmission , So the mutual interference between the two will be inevitable. Bright color interference will cause a lot of noise and noise in the picture, making the picture blurry, especially when shooting small and large patterns with the same area, such as leaves, brick walls, roof tiles, etc. This phenomenon is more obvious. Because the digital high-definition monitoring adopts the technology of bright color separation, the brightness signal and the chrominance signal are separately encoded, which can effectively prevent the bright color from interfering with each other and make the image restoration more realistic. The application of high-definition in the power industry can display the colors of some indicator lights more accurately. â— Get a wider perspective The HD camera adopts a 16: 9 wide-angle video capture specification. Compared with an analog camera, the angle of view is wider under the same focal length. The objects of high-definition monitoring in the power industry mainly include: remote monitoring and monitoring of the environment in the substation area; the operating status of important equipment such as transformers and circuit breakers; the appearance status of high-voltage equipment such as CT, PT, cable joints and insulators in the substation; isolation switches and The status of the grounding knife switch; the main indoor control room, high voltage room, capacitor room, independent communication room and other main indoor environment temperature and humidity alarms, thermometer images; other oil-filled equipment, flammable equipment appearance status; busbar area, The condition of the cable layer, etc. Based on the above three points, digital high-definition monitoring using network technology transmission has obvious advantages in the application of the power industry. It will definitely replace standard-definition monitoring in the near future and occupy a dominant position. The Internet of Things opens up new application prospects for the development of the power industry Researchers in China on the Internet of Things information service [4-6] are a little later than developed countries, and have gradually developed their own innovations while following the research in developed countries. Research institutes such as China Article Coding Center, China Standards Association, AIMChina, Fudan University Auto.ID China Laboratory, Beijing University of Aeronautics and Astronautics and some other enterprises have participated in this research, and some preliminary results have been achieved. At the same time, some well-known domestic enterprises engaged in RFID R & D submitted proposals for "Adapting to Social and Economic Development Needs and Establishing China's Logistics Internet Project" during the two sessions in 2005, and put forward proposals to carry out research and planning on the Chinese Internet of Things. The proposal was investigated and demonstrated. Some publications and websites have become discussion sites for Internet of Things information services. On January 7, 2010, at the "Information and Communication Technology Support Smart Grid Seminar", General Manager Liu Jianming 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 has made full preparations for the application of Internet of Things technology in the smart grid. The smart grid WSN perception layer includes two-dimensional code tags and readers, RFID tags and readers, cameras, various sensors, and sensor networks (refers to an autonomous network composed of a large number of various sensor nodes, with self-organization and self-healing Characteristics), the main role of the WSN perception layer is to sense and identify objects, collect and capture information. The optical network layer of the smart grid includes an optical network composed of optical cables and optical terminals, an Internet of Things management center, and an information center 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 network capabilities, but also improve information processing capabilities. At the same time, analyze and process the data and information provided by the massive Internet of Things to enhance the insight into the smart grid and realize the true intelligence of the grid. The application layer of the smart grid is a solution that combines the Internet of Things technology with the needs of the smart grid to realize the intelligent application of the grid. Through the application layer, the smart grid finally realizes the deep integration of information technology and smart grid, which has a wide impact on the development of smart grid. The key of the application layer is that in the process of informatization, each information element that can meet all links of the power grid system, communicate intelligently, achieve accurate power supply, complementary power supply, improve energy utilization, power supply security, and save electricity costs Requirements analysis and internal sharing of information. 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