Network Security Of Embedded Internet Of Things Terminal

In response to the relevant standards and requirements of the State Grid Corporation for accelerating the construction of a power monitoring system network security management platform,this article needs to expand to realize the network security functions of two important types of embedded terminals in the ubiquitous power Internet of Things,so as to achieve the purpose of real-time monitoring and closed-loop management.In order to achieve the rationality and feasibility of the design plan,and the goal of the project research,firstly,the hardware platform,software architecture and working principle of the studied RTU and e RTU are analyzed and researched,and grasp the operating status,mechanical structure and specific implementation technology of the software and hardware platform of the research object;Secondly,it analyzes and studies the functional requirements of the equipment and the construction goals and principles of power system network security management to ensure that the products designed and implemented in this article meet the relevant standards and specifications;On this basis,combined with the conditions of the two devices,specific solutions are designed to realize their network security functions separately.After completing the preliminary research work and the overall plan design of the project,the implementation of the specific plan is carried out.Firstly,a solution for self-awareness of embedded terminal network security is proposed,that is,a network security probe module is designed to realize the detection function of network security events;Secondly,according to requirements,the collected network security event information needs to be reported using a special network interface.In this regard,it is proposed to use a serial terminal server to extend the network security communication interface,and design a network security communication protocol package to realize the communication between the terminal and the network security management platform,and achieve the goal of reporting security incident information;Thirdly,aiming at the problem of difficult expansion of network communication interface of RTU,a network security agent device is designed by using embedded ARM processor,which is connected to the outside of RTU,works in parallel with RTU,collects security event information of RTU and uploads it to network security management center,so that it can also meet the requirements of network security management of State Grid Corporation.Finally,the equipment assembly and simulation software debugging were carried out in the laboratory,and the errors that appeared were adjusted.After the results were correct,they were jointly adjusted with the network security management device of NARI.The results show that the functions of the designed scheme have reached the expected plan,and all the software and hardware modules can work normally and stably,which proves the rationality and correctness of the solution proposed by the project research institute.In order to solve practical problems in industrial production,this project adopts certain new ideas and new methods.The key to the project is the design of self-aware modules,the expansion of network security communication interfaces,the design of communication protocols,and the design and implementation of network security agent devices,it has high practical value and technological innovation.