Research And Application Of Intelligent Speech Processing Technology In Space Environment Forecast Service

Space environment is closely related to human production and life style.The state of space environment has an important impact on space activities,communication,satellite navigation system and ground technology system.In order to reduce and avoid the loss of space environment disasters to human beings,space environment prediction has an unshakable position.The space environment forecast can give early warning to the events that may cause the space environment effect,and provide guarantee service for the space environment safety of different missions.With the continuous development of space science,the role of space environment prediction is increasing.More and more software is needed to complete different tasks in the field of space environment.However,the programming is gradually carried out.The implementation sequence of the prediction work and the traditional graphical operation such as mouse and keyboard have put forward new requirements for human-computer interaction,and the pursuit of simple,fast and higher efficiency human-computer interaction is a good direction for innovation in the field of space environment.Speech recognition studies how to use computer to extract useful information from human speech signal and determine its language meaning.With the help of speech recognition technology,it can realize the automatic execution of function command from speech input to command,which has the advantages of freeing hands,improving efficiency,natural and convenient.With the continuous development of speech recognition technology,mobile devices,e-commerce,vehicle systems and other fields generally realize the application of speech recognition technology,but there is no speech recognition application in the field of space environment.The application of speech recognition technology to space environment software system is a new and necessary means to improve the efficiency of human-computer interaction in the field of software system.By analyzing the working mode of space environment prediction and the operation mode of space environment software system,this paper puts forward the idea of establishing an intelligent space environment system based on voice processing interaction technology.In order to meet the needs of high-efficiency interactive mode of space environment prediction,an intelligent space environment prediction technology system architecture is proposed,which applies speech recognition,semantic processing and process communication technology to space environment prediction.By building the prototype system of space environment prediction based on i FLYTEK speech recognition,the application of speech interaction technology in space environment prediction business is realized,and the effectiveness of speech processing technology in improving the efficiency of human-computer interaction in space environment prediction is proved.The main research contents and results of the paper are as follows:(1)Research and implementation of speech recognition technology in space environment prediction.On the basis of fully comparing different open interfaces of speech recognition,i FLYTEK speech recognition open platform is adopted as the basis of speech recognition in this paper,which is expanded and improved.The syntax rules of user speech input in space environment prediction business are established,and the text error correction function of prediction instruction is added,so as to improve the applicability of i FLYTEK speech recognition in space environment prediction business and the accuracy of the results.(2)The research and implementation of semantic processing technology in space environment forecast business.Based on the research of the relevant technologies of text semantic processing,the paper uses the Chinese word segmentation system of Python to extract the words and keywords of the recognition text.The semantic matching association analysis method of three kinds of user instructions in the spatial environment prediction is proposed.The calculation formula of Kd value of keyword matching degree used for association matching in semantic processing is defined.The establishment of communication parameters and the implementation of prediction work have laid a foundation for the continuous process.(3)Research and implementation of process communication technology in space environment forecast operation.Based on the process communication mode in Win32,according to the characteristics of space environment forecast command,a mapping method between space environment forecast user command and corresponding function function is proposed.(4)Design and implementation of space environment prediction prototype system.An intelligent space environment prediction prototype system is built,which combines speech recognition,semantic processing and process communication technology to realize the whole process of automatic command execution and result display.Taking the data query and statistical analysis of geomagnetic AP index,geomagnetic KP index and high-energy electron flux of synchronous orbit as examples,the voice interaction and prediction prototype system of space environment is verified.