Research On Manned Submersible-underwater Multi-platform Information Interaction Technology

Deep sea submersibles are a very important equipment platform in marine exploration.They can be equipped with various types of detection and sampling equipment to dive into the deep ocean or the ocean floor to complete detection and sampling tasks.At this stage,China’s deep-sea exploration equipment is numerous and developed by multiple units.These units have no uniform rules when selecting interfaces for energy,signals,and data.There is nothing wrong with a single operation of the equipment,however,there are some problems during centralized operation,such as mismatched interfaces,inability to maximize energy efficiency,and even mutual interference in certain frequency bands.Whether deep-sea resource survey and research or deep-sea rescue and other national security protection tasks,there is an urgent need for manned and unmanned different types of underwater mobile platforms to work together,so multi-target underwater general information transmission technology research needs to be carried out as soon as possible.In this thesis,the research of manned submersible-underwater unmanned platform information interaction system is carried out based on the above phenomena.The main work is as follows:Introduce the basic characteristics of manned submersibles and their information interaction technology,and lay the foundation for the design of the acoustic system in the manned submersible-underwater unmanned platform information interaction system;introduce the underwater unmanned platform and its information interaction technology,for manned The foundation of the optical and electromagnetic underwater connection system design in the submersible-underwater unmanned platform information interaction system;through the above research,it is found that the existing interactive technologies are all information transmission technologies for submersibles and mother ships or shore-based information.The information interaction technology between the unmanned platform and the manned submersible is relatively rare.Carry out the design of the manned submersible-underwater unmanned platform information interaction system platform,and carry a variety of communicators on the manned submersible,including underwater acoustic communicators,optical signal transmitters and receivers,and electromagnetic communicators,which can achieve communication between manned submersibles and underwater unmanned platforms;Develop acoustic information interaction system design,optical information interaction system design and electromagnetic information interaction system design.,integrating three underwater communication methods to facilitate the information interaction between the manned submersible and the underwater unmanned platform;Carry out software design of information interaction system to simplify the operation of multi-source information interaction system.Conduct ground test and underwater test of the optical information interactive system to verify the communication effect of the optical communication system.The test measured that the LED optical communication system can communicate at a speed of 120 kbit/s in the turbid waters,and the maximum transmission distance is 1.9 m.Ground test and underwater test of the information interactive system.The test results show that the transmission speed of the system in seawater is 2200 kbit / s and the transmission distance is 31 cm.The results show that the communication systems have good communication performance indicators,which satisfies the communication requirements based on the manned submersible and the underwater unmanned platform.