Research And Development Of Management And Control System Of Large Concrete Mixing Plant

As the expansion of the scale of RMC(Ready-Mix Concrete) production, higher requirement is proposed to the management and control system of large concrete mixing plant. But nowadays,many management and control incorporated systems of large concrete mixing plant are lagging behind in informatization and intellectualization, which affect the production efficiency and quality very much.In order to change this situation,this thesis proposes a collocation method of the management and control system of large concrete mixing plant which bases on "Server+IPC+PLC".The framework of the system consists of tow layers which are the master station and the substations, and between which by using mixed model of C/S and B/S to access both outside and inside.By using distributed centralized control technology, the master station can manage the substations and transfer informations like content of the indents, details of formula and so on. The substations can visit the master station by C/S way and transfer informations like stocks of materials, accomplishment of indents and so on.The substations transfer orders and parameters to its PLC by using serial port and other ways.Customers can place an order and do other things on the web sites on internet by B/S way.Directing to the problem of dispatch plan for several RMC plants supplying several job sites, this thesis uses method of using Genetic Algorithms to optimize the dispatch plan, and improves the relevant theories, and propose the simple method to get Pareto Front solutions.At the same time, testing the performance of subfunction of dispatching system by using actual examples.