Design Of Software For Display And Control Of Inertial Navigation System And Research Of Data Transmission Security

The fiber optic gyroscope is one of the most attractive research objects in the strapdown inertial navigation system because of its simple process,long life,fast start speed and high precision.In addition to the research of the device itself and the navigation algorithm,it is especially important for the accurate acquisition of the system data and the necessary display control for the development of the fiber optic gyro strapdown inertial navigation system with the fiber optic gyroscope as the core.Based on the analysis of the software requirements and the background of control software,which is developed by our laboratory,this paper presents a realization scheme,and tests the corresponding results,and finally achieves the intended design goals.This paper first elaborates the development of inertial navigation system and data encryption standard at home and abroad,and then makes a detailed analysis of the demand of the control software.Firstly,it needs to analyze the function of the control software itself,including the requirement analysis of the initial parameter setting of the system,the requirement analysis of the temperature error compensation parameter setting of the inertial device,and the analysis of the requirement of the arm compensation parameter setting.Then it analysised the requirements of external control interface,and finally analysised the requirements of navigation data security transmission.At the same time it proposed to use AES encryption algorithm to encrypt the data.Secondly,this paper makes a careful analysis of the mathematical principles used in the AES encryption algorithm,and studies the concept of the domain.Then,the AES encryption algorithm is analyzed carefully.Finally,the AES encryption algorithm is successfully applied to the display and control software,achieving the encryption of navigation data and ensuing the security of the data.In this paper,the design of the control software is designed in detail.Firstly,the overall function of the control software is designed.Then,the human-computer interface is designed,including the overall structure of the human-computer interaction interface,the design of drawing and refreshing of the window session module The control module are designed.Secondly,the data processing module of the multi-thread data communication module and the AES encryption algorithm are designed.Finally,the performance of the inertial navigation system after compensating the arm effect is analyzed and analyzed.The validity of the compensation.At the end of this paper,the full function of the control software is tested and analyzed.First select the test platform,the control software and the next crew to connect and give a specific physical map;then the actual function of software is tested,including the main control interface test,the start command function test,the next machine parameter setting function test,and the drawing function test of software.Finlly,the AES encryption function of the control software is tested.The test is completed and the test results are given,which proves that the control software meets the design requirements.