Research And Design Of Antenna Tracking Controller Detection System Based On Industrial Blockchain

As one of the important ways of satellite communication,mobile satellite communication has the characteristics of high flexibility,strong adaptability and large communication capacity,and plays an increasingly important role in modern communication transmission.In mobile satellite communications,the antenna controller(antenna tracking controller)drives the antenna turntable to make it always aim at the target satellite so as to establish stable and reliable communication.Therefore,it is of great importance to detect the working state of the antenna tracking controller quickly to ensure its stable operation.This thesis designs a portable automatic detection device for the antenna tracking controller based on embedded technology to facilitate the rapid detection of the working state of the antenna tracking controller and locate the fault information accurately.At the same time,it studies the blockchain Hyperledger Fabric technology,conducts distributed ledger management and consensus access to the detected data to ensure that the data is true and traceable,and designs a light encryption algorithm to make the data classified and protected.The main contents of this thesis will be listed as follows:(1)Antenna tracking controller data detection equipment and handheld display equipment are studied.Based on the working principle of antenna tracking controller,the data detection equipment simulates driving and data collection of the main working modules,and detects antennas through feedback data analysis to track the working status of the controller.The handheld display device controls the display screen to establish communication via the data detection device and wireless,performs targeted detection operations,and visually displays the detection results.(2)In terms of the error analysis of the rotary transformer,a mathematical model of Fourier series is adopted to compensate the errors.In terms of the interference of the AC voltage noise,kalman filter is employed.The two measures together help to improve the accuracy and stability of resolver angle measurement and AC voltage measurement.(3)Based on Hyperledger Fabric blockchain,the data management service platform is designed,which uses the Raft consensus algorithm to solve the data consistency problem in the distributed cluster system.The algorithm is fast and the consensus efficiency is high,which improves the real-time data processing of the Internet of Things devices.(4)A data encryption double protection scheme is studied and realized.Through mixed encryption,sensitive data and ordinary data are encrypted at different levels.Only the identity key of the system device and the sensitive data are stored on the blockchain.The ordinary data of the detection equipment is stored in the ordinary Sqlite3 database.It ensures that the data of the detection device is stored in cipher text,and the privacy of the data is protected.The implementation of the entire antenna tracking controller detection system and the test results show that the detection performance of the system has reached the expected index.For the data privacy protection of the antenna tracking controller system equipment,system operating efficiency,system availability and other issues,the encryption scheme mentioned above is realized on the Hyperledger Fabric platform and the data management platform is analyzed for both security and performance testing.This scheme guarantees the data security and improves the work efficiency of the system.