Under the background of "carbon peak and carbon neutrality", the scale of the power grid is increasingly expanding, the intelligence level of the power grid is continually improving, and the dependence of the power system on the communication network is increasingly increasing. The existing power communication network has numerous problems, such as network architecture, upper business support, network operation and maintenance management. This paper first introduces the development status and conceptual principles of SDN (Software Defined Network), based on the advantages and disadvantages of SDN architecture, the common attack types and defense methods are introduced. By combining the advantages of SDN architecture and traditional power communication network, a new security defense framework of power communication network is designed. Finally, a new power communication scheme with open, numerical control separation and controller centralized management is constructed, and the new power communication scheme is summarized and prospected.
In recent years, the world has set off a wave of manufacturing upgrading, and various enterprises have begun to transform into intelligent manufacturing. Through the analysis of the enterprise production process, to improve the efficiency and production efficiency of enterprises. In the process of research, the design algorithm of enterprise production scheduling process is one of the core of enterprise intelligent manufacturing research, it is also the focus of this paper. This paper first introduces the common production scheduling problems and the research status at home and abroad, then summarizes the scheduling rules and algorithms classification, and additionally explains the necessity of research on production scheduling problems, and then analyzes the advantages and disadvantages of related algorithms, and introduces the common methods to solve practical problems. Finally, the advantages of production scheduling algorithm in the process of enterprise transformation are described, and the future research plan is also explained.
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