The Research For Timely Recovery Technology Of Monitoring Data In Deep Sea Subsurface Buoy

Our country is a coastal country, ocean development technology for the improvement of the comprehensive national strength and military strength, has a very important position. Deep ocean environment information acquisition and prediction is the base for a naval military oceanography research, development becomes more and more important. At present, the subsurface buoy and the surface buoy is matched in the deep ocean long-term access to the main equipment of marine environmental data, however, these two kinds of marine environmental data acquisition equipment there are different degrees of risk. Surface buoy is vulnerable to the strong typhoon attack or sabotage, and the work does not with concealment, therefore not suitable for special sea cloth. Subsurface buoy need to long-term lay a certain depth in seawater. If subsurface buoy equipment once could not be safe recovery, the long-term acquisition environmental data will be lost.The topic for the problem of the current in the deep ocean is not easy laying buoys, only placed the subsurface buoy, and the subsurface buoy with a monitoring device is more, a large amount of data, not easy to timely recovery of monitoring data. During the synthesis of the existing technology, hardware devices based on existing standard in deep sea subsurface buoy and increase some small volume data storage device with multi sensor centralized data storage device, and transmits the data controlled unified release underwater buoy. When we need to recycle the monitoring data, we use auxiliary ship sailing to the subsurface buoy’s position, through the remote control buoy floating underwater acoustic communication mode, recovery data by recycling the buoy or wireless communication.Firstly, we discuss the overall system design of the topic. Secondly, we design the hardware system design, including sensor selection, underwater acoustic communication device selection, controller selection, Beidou/GPS modules selection, wireless communication module selection, inter-module interface design, data storage circuit design, real-time clock design, power conversion circuit and release mechanism circuit design, production circuit board design and embedded control software design for each module. Finally, combined with the performance and reliability of the pool and sea experiment system with the field test data and the subsurface buoy, storage test in the standard state, remote control instruction corresponding to each other, which verifies the deep sea subsurface buoy monitoring data timely recovery of system data storage and data transmission function, proved the data recovery system meets the design requirements.