Design And Implementation Of Precision Evaluation System For Rocket Engine Knowledge Learning

Building space science-technology innovation platform is to meet the basic requirements of its "industrialization,scale expansion,internationalization" development.It is also fundamental to serve the national strategy of upgrading state power with space technology.With the development of deep space exploration,rocket engine presents the development trends of large diameter,strong carrying capacity,fewer stages,lower cost,higher reliability,pollution-free and easy operation.The existing aerospace training and examination system cannot meet the needs of the professional research team for the heavy task of aerospace engine scientific research and production in the aspects of professional skills matching,accurate knowledge acquisition,security and secrecy of system,and professional quality evaluation.Based on learning behavior analysis,this paper designs and develops an accurate evaluation system for aerospace engine knowledge acquisition,which realizes differentiated learning mode,professional knowledge promotion,accurate knowledge recommendation and effect evaluation,and provides platform support for building professional team of aerospace engine.In view of the matching requirements between aerospace engine knowledge and refined specialty,the paper analyzes different professionals’ learning behavior logs,puts forward the accurate knowledge push algorithm suitable for rocket engine knowledge system based on the utilization of the system development idea,and realizes the accurate knowledge push list for different technicians.This paper analyzes the classification of rocket engine knowledge system and elements of professional ability demand,taking accurate learning,accurate answering,accurate interaction and system management as the core to apply the accurate push algorithm to the rocket engine knowledge accurate evaluation system.This study finally realizes the close combination of classified professional knowledge and rocket engine designing and manufacturing,and constructs the rocket engine knowledge accurate evaluation system.In response to the security requirements of military information system,the security support system of rocket engine knowledge learning accurate evaluation is designed.According to the requirements of user identity authentication,the integration of CAKey login is designed and implemented to ensure the security and reliability of system login.Aiming at solving the problem of data security level identification control,the method of personnel and data security level identification is designed.The relationship between personnel and data security level is given,and the data is encrypted.Aiming at dealing with the hidden danger of data embezzlement in the process of data access,the security verification mechanism of anti-theft chain is designed.Combined with the requirements of three-member audit management,the system administrator,security administrator and security design administrator are mutually restricted and independent,and the authority division function is completed.With regards to the protection requirements of data security and data integrity,all information and data files are encrypted and stored in the server to achieve the confidentiality requirements of data.Through the design and implementation of this system,an accurate evaluation system with rocket engine knowledge specific characteristics is constructed.Through good user interaction page and efficient push function,users can get the required knowledge information.This research realizes the accuracy,personalization and instantaneity of on-the-job training,which is conducive to the design and development of rocket engine,the knowledge of on-the-job experience,the dominance of on-the-job knowledge and the publicity of employees’ personal knowledge.