Research And Design Of Electronic Data Sheet Technology In Space Data System

With the continuous development of the aerospace field and space data systems,the complexity of aerospace systems is also increasing,and the demand for interconnection and interoperability of heterogeneous systems has also increased,mainly in the information interaction of space data systems.In order to realize the interconnection and intercommunication between heterogeneous systems in the space data system,electronic data sheet technology can be used to describe relevant information.The electronic data sheet technology uses a unified standard to describe the information of the space data system,and can standardize the information interaction of the system in the design,development,integration,testing,and operation phases,especially for the information between satellites and ground,different systems and equipment interactive.Among the existing electronic data sheet standards,the XTCE standard is used to describe the telemetry and remote control data in the spacecraft,and the SEDS standard is used to describe the equipment interface of the spacecraft.Based on the XTCE standard and the SEDS standard,this subject has designed and developed an electronic data sheet tool.The electronic data sheet tool chain is a set of tools designed and developed based on different standards and application scenarios.The toolkit can be a combination of multiple toolchains to manage the commonality and support the expansion of the toolchain.At the same time,the tool chain can also be used separately in specific scenarios.The main research work of this subject is as follows:Firstly,the basic structure of the XTCE standard and the SEDS standard and the functions that should be available in the actual use scenario are studied,and the data stream conversion relationship,function division and application scenarios of each functional module in the electronic data sheet tool chain are analyzed.Based on the three-level architecture software method,a universal electronic data sheet tool chain architecture model is constructed,and functional modules can be selected and combined according to needs.The above design ideas can be adopted to design the related electronic data sheet tool chain.Secondly,it analyzes the remote control commands in the spacecraft and the data information,data format and other characteristics of the 1553 B data bus equipment.According to the structure of XTCE standard and SEDS standard,compile the corresponding electronic data sheet template file.Based on the universal electronic data sheet tool chain architecture model,the electronic data sheet tool chain based on the XTCE standard and the electronic data sheet tool chain based on the SEDS standard have been designed and implemented,and the results of the generated data files have been analyzed.Finally,the characteristics of the business information exchange and recognition between spacecraft equipment and the content of the exchange are analyzed.On the basis of the SEDS standard,the concept of S-SEDS used to describe business interface information is proposed,and its element structure is designed,and the data flow conversion relationship and function division method of the S-SEDS electronic data sheet tool chain are analyzed,with certain rationality and feasibility,the design and development of the electronic data sheet tool chain can be carried out accordingly.The design ideas and model architecture of the electronic data sheet tool chain proposed in this topic provide a method for the design and development of subsequent electronic data sheet tools,which can apply electronic data sheet technology,improve the efficiency of data exchange,and help to realize the interconnection and intercommunication between heterogeneous systems in the space data system and the plug-and-play of equipment.The development of an electronic data sheet tool chain on the basis of the S-SEDS proposed in this subject is helpful to realize the business-level information exchange and plug-and-play functions of the spacecraft system.