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Design And Simulation Of The Ground Control System Of AGVS For The Production Line Of Foamed Ceramic Partition Wall

Posted on:2021-02-16Degree:MasterType:Thesis
Country:ChinaCandidate:J X LuFull Text:PDF
GTID:2431330611954098Subject:Mechanical Manufacturing and Automation
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The ceramic industry is China's traditional superior industry.With the continuous development of production and the increasing degree of automation,the production system of the ceramic industry is becoming more and more complex and more intelligent,this puts forward higher requirements for the automation,flexibility and punctuality of the material transportation system.However,the research on the material transportation system in the ceramics industry is relatively weak,and AGV,as a flexible logistics transportation tool that integrates automation,information and intelligence,can provide effective support for the material transportation system and reduce the resource loss in th e process of material transportation and improve the production efficiency of the manufacturing system.and the effective combination of AGVS and ceramic production lines is an important research field in the development of the ceramic industry.Research on the operation scheduling strategy of the ground control system,analyze the production process,task allocation strategy,path planning strategy of the production line,and establish the scheduling mathematical model;The parameters of production scheduling and production line are optimized based on genetic algorithm;The design of the ground control system is completed based on the three-tier architecture;The whole AGVS system is simulated based on Plant Simulation software to verify the correctness and feasibility of the above research.Firstly,the thesis conducts task analysis and circuit analysis on the production process of the foamed ceramic partition board production line.In order to further study the operation scheduling strategy of the ground control system,and the task allocation strategy and path planning strategy are studied respectively;First propose a random service system strategy for task allocation,optimize task allocation according to scheduling principles and methods,also include charging and temporary parking point tasks.improve the efficiency and stability of the production line;Then analyze possible conflicts in the path and classify conflicts.develop different solutions for different types of conflicts and analyze the conflicts between production areas and non-production areas;According to the above research,analyze the AGVS scheduling problem and establish the AGVS scheduling mathematical model.Secondly,the production scheduling and production line parameter optimization problems of the ground control system are studied.A brief description of the genetic algorithm is made.Based on the basic genetic algorithm,a hybrid genetic algorithm suitable for solving production scheduling and production line parameter optimization problems is designed;The complex characteristics of the production scheduling and production line parameter optimization problems.This algorithm uses the dual chromosome natural number coding method and the accumulation method to generate the initial population.At the same time,it uses genetic operations such as proportional selection,partial mapping cross PMX,and reverse mutation;Through adaptive parameters to adjust the crossover probability and mutation probability to avoid immature convergence;Adopt the weighting method to the three objective functions,and use this to establish the fitness function;The proposed algorithm can quickly search and converge to the optimal solution within a limited evolutionary algebra And can maintain the diversity of the group,greatly save the running time,improve the operating efficiency;the paper applies the proposed algorithm to the actual foamed ceramic partition board production line to achieve production scheduling optimization.Thirdly,the design of the ground control system is completed based on the three-tier architecture,the functional structure of the system and the data flow of the system's data interaction are analyzed;The interface design of the ground control system is based on the C # language;The attribute structure of the vehicle and the order object are designed and the state transition process is analyzed.complete the management of orders and vehicles by establishing queue containers in various states;Establish a communication protocol between the ground control system and AGV;Establish a traditional database that stores AGV information and an XML database that stores electronic maps.At the end of the thesis,the system simulation of the foamed ceramic partition board production line is carried out,and the Plant Simulation software is used to model and simulate the AGVS system;By analyzing the algorithm optimization scheduling simulation results and the actual production results after optimization,we can know the mathematical model and the proposed The feasibility and effectiveness of hybrid genetic algorithm in practical application avoids the "bottleneck" phenomenon in the transportation process,thereby improving the transportation efficiency and optimizing the material transportation system of the foamed ceramic production line.
Keywords/Search Tags:AGVS, Ground control system, Genetic algorithm, Production schedule, Simulation
PDF Full Text Request
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