Design Of Seabed Beacon Positioning Hardware Platform Based On Single Hydrophone

The diving beacon system is widely used in ocean environment observation and marine resources development.However,due to such factors as fishing net dragging and marine storm,the beacon position and the initial placement of the beacon will greatly change.Based on this background,this paper designs A method of seafloor beacon positioning based on single hydrophone and a platform of beacon positioning for seafloor are designed.Firstly,the status quo of beacon development and the status quo of beacon positioning technology are discussed.At present,the main beacon positioning methods are discussed.Most of beacon positioning method is based on hydrophone array.Based on this idea,Hydrophone beacon positioning method is designed.Single hydrophone forms a virtual hydrophone array on the water surface through the movement of a carrier vessel,and uses the distance difference between the beacons arriving at different receiving points to construct a hyperboloid positioning equation to solve the beacon position.In this paper,a locating solution model suitable for such a beacon positioning method is established,and a solution algorithm of the locating equation is deduced.A simulation experiment is proposed for positioning of the ship during locating and the possible positioning accuracy of the locating method is achieved Simple evaluation.Then,the design of seabed beacon positioning platform is completed based on DSP(Digital Signal Processor)chip and FPGA(Field-Programmable Gate Array)chip.The details of analog signal receiver circuit,TMS320C6416 T minimum system circuit,EP4CE15I7 N minimum system circuit,embedded TCP / IP communication circuit,signal sampling circuit,UART communication circuit And power supply circuit design.The last part of the thesis has carried on the laboratory test to the localization platform,mainly including the test of the analog signal circuit,the basic function test of the digital circuit,and the comprehensive test of the positioning platform.Through hardware and software testing,the feasibility of platform design is verified.