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Electroplating Production Line Design And Synthesis Of Intelligent Scheduling System

Posted on:2012-10-27Degree:MasterType:Thesis
Country:ChinaCandidate:J Y DingFull Text:PDF
GTID:2131330332491276Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
Plating crane scheduling problem is a kind of time constraints, sequence constraints and resource constraints of the combinatorial optimization problem. In theory have shown that plating crane scheduling problem is an NP problem, and solution to this problem lies in the good performance of research and application of optimal scheduling. At present, most studies on the automatic electroplating production line crane scheduling problem are concentrated in a single lane, single-product environment, and seek the best crane route in advanced planning methods. However, the actual electroplating production line is usually run with multiple vehicles to improve handling crane efficiency, and a production line not just processes a product. So, there are more and more limitations to take this path of crane travel path in advanced planning approach. The purpose of this study is to develop an intelligent scheduling to run the road traveling crane scheduling.This paper takes the window optimization thought, combining with the characteristics of the electroplating production process, and proposing the plating production scheduling model based on window optimization. The model is actually a production simulation model that can simulate the process of the production process. As long as given a production process, this model can show the production process. So, we can schedule the traveling crane according to process shown by the model easily. In each scan cycle, we can initialize the simulation model according to the actual detection line state. Although this method is difficult to guarantee the global optimal solution, it narrows the dimension of the problem, greatly reducing the time used in the calculation, so, it can be adapted to real needs.Finally, combining the actual project cases, electroplating production line for multi-process requirements, the design is completed based on multi-objective traveling crane scheduling electroplating lane configuration control and PLC control systems, and achieve practical application. PLC control production scheduling system meets the requirements of automation; control configuration system achieves a production environment in the complex field of industrial production in real-time monitoring; through the use of advanced scheduling control strategy, the flexibility and agility of the plating production system are improved.
Keywords/Search Tags:production scheduling, PLC, electroplating
PDF Full Text Request
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