Remain true to our original aspiration! This is the most impressive sentence in the communication between the author and general manager Xu Chengbin of Changyuan Shenrui.

When it comes to the digital transformation of the whole power system today, with the vigorous promotion of the power Internet of things and Digital South power grid, what are the problems for the enterprises themselves, Mr. Xu said, “it’s the most difficult not to forget the original intention! At present, the construction of ubiquitous power Internet of things should not innovate for the sake of innovation, intelligence for the sake of intelligence and Digitalization for the sake of digitalization, but should insist that innovation and value creation should start from demand. “

In recent years, with the deep integration of new technologies such as “big data”, “cloud computing” and “Internet of things” with smart grid, the development of power equipment manufacturing towards digitization and intelligence continues to deepen. How to make the distribution network have strong data perception ability, efficient data transmission and processing ability is the key to the construction of distribution Internet of things. Xu Chengbin, general manager of Changyuan Shenrui, said, “in the early stage of industrial development, we should lay a good foundation for future long-term development. The key lies in two aspects, one is platform technology, the other is application technology.”

Build ecological platform and deeply lay out ubiquitous power Internet of things

The construction of ubiquitous power Internet of things is closely related to the continuous promotion and development of “Yunda mobile intelligence”. It has higher requirements for the cooperation among various subsystems of intelligent power distribution. Integration and intellectualization will become the future development trend. At present, with the development of ubiquitous Internet of things, manufacturers are facing a series of problems, such as the fragmentation of multi system and multi standard, the lack of supporting development environment tools, the weak security protection of terminal equipment, and the difficulty of interconnection of multiple communication protocols.

At the 12th Shanghai international power equipment and technology exhibition, Changyuan Shenrui brought a product that attracted countless people’s attention – hantanos. As a lightweight embedded operating system of Internet of things, it will provide a new solution for users to build cloud integration“ Hanteng operating system is a lightweight kernel based on which functions and components suitable for different scenarios are developed. The modular architecture design features “low coupling and strong cohesion” between kernel and components Duan junhuan, manager of IOT group of Changyuan Shenrui R & D center, introduced to Polaris power grid that “for different application scenarios and different applications, developers can independently choose the operating system and different components to realize the required product design, which is also an original intention of lightweight design of operating system.”

How to make the distribution network have the ability of data perception

Hanteng operating system

The combination of sensing (sensing) and “data, intelligence” (knowing) is an important feature of ubiquitous power Internet of things. Multi sensor management, lightweight data processing and intelligent algorithm are integrated into the sensing terminal to make full use of the terminal edge computing ability to realize cloud end interactive collaborative computing. Intelligent sensing terminal is the smallest sensing unit of ubiquitous power Internet of things, which is actually like the original embedded device. The application of embedded devices in the power industry is generally divided into two situations. One is that the manufacturer writes the code directly on the CPU, which is also called “naked” system by President Xu. The other is that the general operating system of foreign manufacturers is used. However, these two situations obviously can not meet the overall requirements of equipment localization in China. We need to have our own operating system and chips to support the ubiquitous power Internet of things platform.

Focus on demand, solve difficult problems, enable ubiquitous power Internet of things from bottom to top

“Distribution Internet of things is an important application practice of ubiquitous power Internet of things in the field of distribution.” Du Dongwei, deputy chief engineer of the primary and secondary Integration Department of Changyuan Shenrui distribution network, said: “the ubiquitous power Internet of things is to create an ecological system of smart power. The traditional power grid has some problems, such as insufficient customer perception ability, equipment intelligence level to be improved, resource sharing and service opening ability to be strengthened.” Therefore, the State Grid Corporation of China (SGCC) has proposed the world-class strategic goal of three types and two networks, and proposed the construction plan of ubiquitous power Internet of things based on “cloud management side end”, so as to create a complete industrial chain ecosystem with top-down, cloud technology, communication, edge intelligence and intelligent sensing.

Intelligent power distribution solution

At present, the “bottom-up” practice of ubiquitous power Internet of things is mostly based on “point” breakthrough; The “top-down” theory of ubiquitous power Internet of things is mostly based on the “layer” decomposition. The theoretical layer includes a “four layer” architecture system including perception layer, network layer, platform layer and application layer. Relevant experts further expand the “four layer” architecture based on the above-mentioned “four layer” architecture. For example, Wang Jiye, President of State Grid Energy Internet Technology Research Institute, recently proposed on the “ubiquitous power Internet of things intelligent sensing technology forum”, including perception terminal layer, edge layer, network layer, cloud layer “Five layer” architecture including artificial intelligence layer. It can be seen that the theory and construction of ubiquitous power Internet of things are still being optimized and adjusted.

The solution of all Internet of things is ultimately oriented to application scenarios, which are ultimately driven and oriented. How to make the distribution network have more powerful data perception and acquisition ability, more efficient data transmission and processing ability, more flexible business response and implementation ability, is the key to the construction of distribution Internet of things. Xu Chengbin, general manager of Changyuan Shenrui, said: “in the past, power grid information monitoring was mainly used in the main network, while the lack of monitoring in the distribution network, most of them used blind tuning. Although with the improvement of the construction technology of distribution network automation, the depth of data terminal monitoring is insufficient, and the monitoring is only limited to each node. When the ubiquitous power Internet of things is put forward, all the problems originally encountered in the distribution side will be solved one by one. “

Changyuan Shenrui proposed the IOT platform solution based on the “cloud management side end” architecture, which is guided by the full-service ubiquitous power IOT strategic planning to realize the intelligent IOT construction of distribution room. Intelligent distribution transformer terminal is connected to the whole station perception terminal through local communication. Based on remote communication and security access, a “cloud management side end” architecture is formed to realize unified access of business data, high flexibility of data and regional edge intelligence.

The cloud platform is based on the basic conditions of State Grid cloud and full service data center. State Grid cloud provides computing resources, supports application construction, integrates with full-service data center, achieves “one-time storage, application everywhere”, and realizes “cloud and fog cooperation” with intelligent distribution and transformation terminal.

As an “edge” device, intelligent distribution transformer terminal has the functions of unified local communication access, edge computing and remote communication. It provides wireless private network / public network, optical fiber Ethernet and other remote communication interfaces for the upper part, and carrier, micro power wireless, RS232 / RS485 serial port, Ethernet and other local communication modes for the lower part.

The 0.4kV low-voltage side electrical quantity acquisition terminal, intelligent security system, environmental monitoring system, transformer monitoring system, equipment condition monitoring system, video monitoring system and other subsystems, charging pile, distributed photovoltaic and other intelligent devices outside the station are connected to the intelligent distribution transformer terminal through the local communication network, and through the intelligent distribution transformer terminal through the remote communication network, Unified access to the platform layer of power Internet of things.

Xu Chengbin, general manager of Changyuan Shenrui, believes that by endowing the distribution network equipment with sensitive and accurate perception ability and the functions of interconnection, interworking and interoperability between equipment, we can realize the comprehensive perception, data fusion and intelligent application of the distribution network, meet the demand of lean management of the distribution network, and support the rapid development of energy Internet, Finally, users can get intelligent and convenient response services in electricity and energy consumption.

Innovation begins with demand and technology realizes value!

Finally, general manager Xu Chengbin said that Changyuan Shenrui will always implement the digital and intelligent enterprise development route of deep farming industry and power system proposed by Changyuan group. Continue to deepen their own professional and technical, promote the implementation of the construction concept of power distribution Internet of things, and help the development of ubiquitous power Internet of things faster and better. At the same time, scientific and technological innovation is the core driving force for the sustainable development of Changyuan group. According to the industry and industry development trend, the company will continue to develop advanced products and technologies, and continue to create value and extend value for customers.

Responsible editor; zl

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