Mirkevych R. Automated production control of dairy products with the short-term scheduling subsystem

The dissertation is devoted to questions of increasing the technological complex of whole milk products production functioning efficiency. As the analysis result of the technological process, the equipment within the technological complex and the system's operation features as a whole, the need to supplement the control system with the short-term scheduling module with the aim of coordinating the work of equipment within the technological complex has been identified. To solve the set tasks, methods and approaches of mathematical programming and the theory of schedules, simulation modeling, modern information technologies and cloud computing services in automated production control systems were used. The principles of short-term scheduling for the whole milk products integrated production are developed, taking into account flexible production lines, changing product range and the possibility of operational change of the plan based on RTN methods (resource-task networks), which ensures the coordination of equipment within the technological complex, and ensures achievement of the delivered optimality criterion. The formulation and solving of the linear programming task for the creation of short-term scheduling mathematical model is carried out on the basis of which the calculation of the schedule of the production shop of whole milk products equipment work is carried out. The structure of the integrated automated milk production control system has been improved by including in it the developed short-term scheduling module taking into account modern standards of production control. Were further developed the use of the data from the recipe and equipment models in accordance with the standards of integrated production control IEC 61512 and IEC 62264 for calculating the parameters of operations, which allows you to automate the process of creating a model for short-term scheduling, as well as the principles of using the simulation models in the control program, which allows to check the effectiveness of calculated plans for various abnormal situations. The concept of using an interconnected set of recommendations, data structures and applications to the development of software applications for programmable devices such as industrial controllers, but not limited to them, taking into account typical requirements for control systems, current world standards and trends is developed further. As a result of theoretical and experimental researches, the structure, algorithmic and software implementations for the automated milk production control system with the short-term scheduling module were developed. The obtained results can be used in the design, development and implementation of new, or in improving existing automation systems of technological complexes for the production of whole milk products. The results of the work are used in the educational process of the Department of Integrated Automated Control Systems of the National University of Food Technologies and transferred for implementation on Superadded liability company «Yagotinskiy Dairy Plant», which is confirmed by the relevant certificates.