Development Of Precise Feeding And Equipment For Cage Farming Based On Fuzzy Control

Aiming at the current cage farming: high labor intensity of manual feeding,low feeding accuracy,more feed waste,and high farming cost,etc.a set of fuzzy control precision feeding system based on fish growth model and the influence of the breeding environment is proposed.Completed the design of the mechanical device of the feeding machine,fish growth model analysis,fuzzy controller and the control interface of aquaculture equipment,and developed a set of precision feeding system for large yellow croaker cage culture in the waters of Zhoushan,Zhejiang.First,understand that the fish growth model is a mathematical expression of the fish growth process,and analyze the role of the fish growth model.By zhejiang zhoushan local farming collected large yellow croaker data and expert personnel research and analysis of experimental data,Sorting out relevant data such as month age,body length,and weight of large yellow croaker,using Origin drawing software to perform scatter plot fitting,obtain the growth model of local large yellow croaker in Zhoushan,and do the preliminary work for the next step of fuzzy controller design.Secondly,analyze the technical requirements of the equipment in this subject,design the composition and working principle of the precise feeding system,and adopt the principle of low-pressure pneumatic conveying for feeding and conveying.It consists of five parts:power system,distribution mechanism,bait conveying system,control mechanism and silo composition.The shape of the silo adopts a rectangular parallelepiped design,the size is1700mm×1700mm×700mm,the bottom adopts a funnel shape with an inclination angle of30°,and the conveying air volume is 20 m/s.The sensor for water quality detection is selected,and the overall prototype of the equipment is obtained and carried out on site.run.Thirdly,Using fuzzy control theory and MATLAB software to establish a fuzzy controller,taking large yellow croaker moon age,temperature and dissolved oxygen as input variables,feeding rate and feeding amount adjustment coefficient as output,establishing the membership function and fuzzy relationship between the relationship variables Control rules.according to the bait amount = body mass × bait rate × bait amount adjustment coefficient,to achieve precise control of the bait amount,and compared with manual bait feeding,the results show that the precision bait feeding equipment is greatly improved The use rate of bait.Finally,the LabVIEW software is used to design the monitoring interface of the control system to monitor the working process and data of the bait in real time.The operator can also operate on the interface to modify and adjust the parameters according to different requirements.The design of the whole set of systems and equipment can solve the problem of inability to accurately feed bait and delay in feeding bait in the process of cage breeding,thereby improving the precision and intelligence of breeding.breeding.