Study On Control Model And Simulation Of Agricultural Machinery System Based On Multi-Agent

Agricultural mechanization is the main driving force to promote the development of agricultural modernization, agricultural machinery system is an important part of agricultural mechanization. In the development of agricultural mechanization, the research of agricultural machinery system is the emphasis inevitably, fully grasp the internal characteristics, structure and operation rules of agricultural machinery system, for optimizing of agricultural machinery in agricultural production practice in the use of and improve the technical and econo mic benefits of the agriculture is very essential. However, agricultural machinery system is a very complex system. This paper based on control theory, complex system theory, complex adaptive s ystem theory and Multi-agent theory, combined with actual situation of agricultural production, with Simulink and Repast simulation platform, launched a research and analysis of the agricultural machinery system, in order to reveal the internal composition, structural characteristics and operation rules of agricultural machinery system.On the basis of analyzing the present situation of domestic and foreign research, this paper made a deep research on the agricultural machinery system from the following asp ects:Firstly, according to the control theory from the perspective of complex system, and combined with the actual situation of agricultural production, put forward reasonable modeling assumptions, to build a control model of agricultural machinery subsys tem under discrete state space. Based on the judgment of the system properties, the observability and controllability of the system model are analyzed in order to reveal the inherent rules of the agricultural machinery system. To build the control simulation model of agricultural machinery subsystems, this paper used the MATLAB / Simulink software as research platform, made a simulation of the system model, so as to realize the quantitative research about changes of agricultural machine categories, quantity, age structure and age distribution in agricultural machinery system.Secondly, in order to grasp the interior closely linked of agricultural machinery system, based on complex adaptive system, starting from the perspective of Multi-agent determined composition of agriculture machinery system, agricultural machinery system is divided into a plurality of interconnected subsystems. Defined and described individual behavior and interactive behavior of agricultural machinery subsystems, analysed of the properties and structure of agricultural machinery subsystems, researched update process of agricultural machine, and combined with the actual needs of agricultural production to establish the structure o f agriculture machinery system based on Multi-Agent System.Thirdly, analysed individual behavior and interaction behavior of agricultural machinery subsystems, and focused on the analysis of influence of the interaction between the subsystems of agricultural machinery system, and based on the Multi-Agent System theory explained the operation of agricultural machinery system, analysed the behavior of agricultural machinery subsystems impact the changes of agricultural machine categories, quantity, age state distribution and age structure distribution in agricultural machinery system, and proposed mathematical formula for the evolution of agricultural machinery system.Finally, according to Multi-Agent theory, combined with the control model of agricultural machinery subsystem, through the Repast platform to study modeling and simulation of agricultural machinery system. Combined with the actual situation of agricultural production to study requirement analysis and design development framework of agricultural machinery system, studied based on Multi-agent system of the modeling method and steps of agricultural machinery system, studied the composed of simulation model of agricultural machinery system, and presented the simulation process of agricultural machinery system model.The results of this paper will provide an effective theoretical reference for the future research of agricultural machinery system, and will play a guiding role in managing and optimizing the agricultural machinery system for farms or agricultural enterprises.