Structure And Power Source Design Of Fishing Buoy

The fishery buoy is a floating automatic monitoring device that integrates self-supply,self-monitoring,and self-transmission functions.Because the fishery buoy needs to work independently for a long time and may be vulnerable to damage in an extreme marine environment,at the same time,the internal space of the buoy Due to the limitation,the battery contained in it is small and the buoy’s endurance is weak.Frequent recovery,charging and maintenance of the buoy requires a lot of financial resources and time,which is impractical.Therefore,it is very necessary to improve the endurance and device durability of the buoy.The main research contents of this paper include:(1)Design an eccentric pendulum wave power generation device suitable for a variety of complex sea environments and applied to fishery buoys.First,design the buoy as a whole.The upper part of the buoy is cylindrical,and the lower body is hemispherical,which can make the buoy itself obtain more wave energy.Secondly,the wave energy power generation device is designed to be composed of three parts: energy storage device,control device,and power generation device.The energy storage device can convert the wave energy into the potential energy storage of the torsion spring,the control device adopts an escapement control device to limit the potential energy output of the torsion spring,and the power generation device converts the potential energy into electrical energy output.(2)Establish the buoy and eccentric pendulum motion models for the free and mooring states of the buoy respectively,and use Nemoh software to build the model to obtain the corresponding wave forces,and then compile the buoy and eccentric pendulum motion models in the free state into Matlab for numerical calculation.The effects of wave period,amplitude,length and quality of eccentric pendulum,and overall mass of the buoy on the movement of the buoy and eccentric pendulum are studied respectively.The research shows that the movement of the pendulum is chaotic and does not produce rules with the linear changes of wave factors and the buoy’s own parameters.Variety.After that,the three-dimensional model established in Solidworks was substituted into Adams software for simulation to study the influence of the rising amplitude and frequency of the buoy on the eccentric pendulum.The research shows that the rising amplitude has little effect on the eccentric pendulum,and the actual rotation angle of the pendulum will change in a small scale within a certain range.,But with the gradual increase of the rising frequency,the actual rotation angle of the pendulum changes irregularly.When the frequency is 3rad/s,the actual rotation angle reaches the maximum value.(3)The simulation analysis of the buoy and the eccentric pendulum in the mooring state shows that the eccentric pendulum basically maintains the same law in the two states,and the movement of the pendulum is still chaotic.However,the eccentric pendulum in the free state of the buoy can work under the same conditions.Get more actual corners.After that,the mooring model was substituted into the Adams model for simulation to study the influence of the swing amplitude and frequency of the buoy on the eccentric pendulum.As the rotation frequency increases,the actual angle of the eccentric pendulum will gradually increase to a certain value and then basically remain unchanged.change.As the rotation amplitude increases,the actual rotation angle of the eccentric pendulum will gradually increase.(4)Design the control device,determine its parameters to meet the speed requirements of the small generator,and then calculate the power generation.The power generation of the power generation device can be 1.9 times that of the solar power generation device under the ideal state.