Research On Signal Transmission Method Of Underwater Near-field Non-contact Equipment

In recent years,the inductive coupling power transmission technology has made a great progress in various industrial fields with its advantages of flexibility,high efficiency,safety and easy implementation.However,at present,the research of ICPT technology is mostly focused on the application of the land and air medium,while the research progress of underwater equipment is slow.With the further development of ocean development in China,a large number of underwater rescue and detection devices are necessary.The Underwater Non-contact energy transmission technology will have a very important application value and have a far-reaching impact because of its small and compact structure,flexibility,safety and low cost.With the improvement of concealment and convenience of underwater information transmission,it is an important trend to find a new underwater information transmission channel.Synchronous transmission technology of electric energy and signal is a better way of communication.Through the strong penetration and anti-interference of the magnetic field,the signal and energy can be transmitted synchronously through the magnetic coupling channel,which can realize the concealment of underwater information transmission.It ensures the miniaturization and simplification of underwater communication equipment.Help the underwater equipment to complete the task better.Based on this background,aiming at the construction of underwater information transmission channel,this paper designs a non-contact energy and signal synchronous transmission system for underwater.In this paper,the inverter,compensation and rectification of the underwater energy transmission system are analyzed.At the same time,the appropriate loose coupling transformer is designed to ensure that the underwater signal and energy transmission do not interfere with each other according to the requirements of the underwater system environment.At the same time,the adaptive signal demodulation algorithm is added to improve the anti-interference ability of the signal transmission.The synchronous transmission system of underwater power and signal is designed to realize the transmission and reception of signal.Then,aiming at the problems of underwater signal and energy transmission efficiency,the loose coupling transformer core is improved.The appropriate core is selected to improve the overall transmission efficiency of the system and optimize the parameters of the underwater coupling system.Finally,a simulation model is built to verify the synchronous transmission of signals,and the ideal results are achieved.