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Study On The Expert System Of Water And Fertilizer Rationing For Sesame Planting

Posted on:2020-09-19Degree:MasterType:Thesis
Country:ChinaCandidate:R C ZhangFull Text:PDF
GTID:2393330611981427Subject:Computer technology
Abstract/Summary:PDF Full Text Request
With the rapid development of agricultural technology,the use and development of new information technology will become more and more important.In this paper,an effective and controllable expert system is designed and developed for the water and fertilizer allocation of sesame planting in agriculture.The focus of the research is to realize the real-time control of water and fertilizer allocation by the expert system,so as to improve the utilization efficiency of water and fertilizer resources.For this reason,based on the investigation and analysis,an expert system model of water and fertilizer distribution for sesame planting is constructed,and the system use case database and the initial knowledge base for reasoning are established.By adopting the method of fuzzy control,the input,control rules,decision-making and decision-making modules are all fuzzy,and the corresponding membership degree is obtained,which simplifies the complicated reasoning in the past.The efficiency of expert system is improved.Then,according to the fuzzy rules in the knowledge base and the fuzzy condition statements in the reasoning machine,the fuzzy decision-making is obtained.After the inverse fuzzy operation,the output is accurate,and finally the effective control instructions are obtained to realize the efficient water and fertilizerdistribution of sesame planting.Based on the expert system model,this thesis develops and implements the expert system of water and fertilizer allocation for sesame planting.According to the knowledge data obtained from the investigation and analysis,and according to the monitored soil moisture and the fertilizer demand law of crop species,the periodic water and fertilizer plan are set to implement the rotation irrigation.The fertilizer applicator will automatically realize the regular and quantitative control of irrigation and fertilization according to the formula and irrigation process parameters set by the user or expert.By combining the basic irrigation theory research and information processing technology,the system solves the problem of the integration of soil water and fertilizer monitoring and intelligent control.Under the simulation environment,the developed expert system of water and fertilizer distribution can make better decision of water and fertilizer distribution irrigation for different parameter problems.The system has high efficiency,and can acquire knowledge from human-computer interaction and optimize itself.It has good performance and better decision-making ability.
Keywords/Search Tags:Expert system, fuzzy control, degree of membership, integration of water and fertilizer
PDF Full Text Request
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