System Design And Implementation Of Intelligent Distribution Terminal

With the rapid development of Internet of Things technology and embedded technology,the traditional distribution network management mode couldn't meet the development needs of the distribution network in the new era.Therefore,it is particularly important to accelerate the realization of the comprehensive perception,data fusion and intelligent application of the distribution network.As the core equipment in the automation construction of low-voltage distribution network,the intelligent distribution terminal will directly affect the monitoring and management level of the distribution network.After fully studying the design requirements of the distribution terminal,this paper adopted the ARM&Linux system architecture.With "hardware platforming" as the design guideline,the high-performance processor AM3358 was used as the core of the system,and a variety of interfaces were extended to meet the communication requirements between the distribution terminal and the equipment in the station area.Then the power information collection unit of the station area was designed as the cornerstone of the system function,which satisfied the requirement of the real-time monitoring of the power parameters of the station area by the distribution terminal.With "software-defined terminal" as the design concept,the Linux operating system was used as the system software platform to solve the problem of software and hardware coupling that occurred during the business iteration.For the purpose of enhancing the data management capability of the distribution terminal,the embedded database SQLite was used as the data management container.The system software adopted the multi-process design structure and formulated the inter-process communication protocol for each process to cooperate with each other.The process is used as the execution unit to realize the functions of station area monitoring,power meter reading,and master station remote communication.Finally,through the board level function test and system function test,it can be verified that the design realized extensive interconnection with the equipment in the station area,monitored the power parameters of the station area,and collected user power consumption information;on the other hand,the status of the station area could be considered and controlled by the main station server,which can meet the demand of the new generation distribution network for the intelligent distribution terminal.