Design Of Multi-Parameter Surface Drifting Buoy Based On Multiple Communication Methods

Surface drifting buoy is a kind of equipment commonly used in marine surveys.It has the function of automatically collecting marine hydro-meteorological parameters,data transmission and positioning.With the continuous expansion of the scope of marine scientific research,the number of marine observation parameters is increasing,and drifting buoys are increasingly developing in the trend of multi-parameter,multi-functional,and comprehensive observation.Therefore,the development of a comprehensive ocean observation platform with high reliability,low power consumption,flexible software and hardware expansion,and suitable for the marine environment is of great significance for ocean observation.The main research content of this paper is to design and implement the data acquisition system based on multiple communication methods in a multi-parameter surface drifting buoy.The observation performance should meet the requirements of GB/T 12763-2007 "Specifications for oceanographic survey".The acquisition system has the characteristics of high reliability,good scalability and low power consumption.The design is according to the future development trend of drifting buoys and the current observational demand in China.Based on the previous structural and tethered technology research,the key technologies such as data acquisition and control,data transmission and communication,and energy supply are researched through the uses of high reliability,multi-parameter and multi-function sensors.Specifically,it includes research on the overall scheme,design based on communication methods of Beidou and Iridium systems,deployment and management of microcontroller resources,multi-parameter measurement,sensor plug-and-play and power supply technology.On the basis of the prior art,the choice of buoy body material,structural design,marine environment adaptive design,hardware and software anti-interference design and data quality control method are briefly described.The system test shows that the system can complete multi-parameter data acquisition and transmission,and the observation factors meet the requirements of "Specifications for oceanographic survey".The design meets the requirements of the low power consumption and the system specifications.The innovations are in two aspects of multi-parameter measurement and dual communication mode.Through the simultaneous observation of meteorological,hydrological and marine environmental noise in the relevant sea areas,it is helpful to study the correlation between marine environmental noise and hydro-meteorological parameters.The dual communication design of Beidou system and Iridium system greatly increases the data receiving rate and data transmission reliability.In addition,the selection of high-performance chips and the anti-interference design of hardware and software effectively improve data acquisition.Finally,power supply technology extends the working time of drifting buoys in an unattended state.