Criteria-Based Approach to Solving the Problem of Technological Regulation Rotary Combine

Don State Technical University, Gagarin Square, 1, Rostov-on-Don, 344000, Russian Federation

^* Corresponding author: kaf-qm@donstu.ru

Abstract

The task of technological adjustment of the working bodies of a rotary combine harvester is not trivial. The complexity of the task is due to the need to take into account a large number of signs (environmental factors and parameters of the technical condition of the machine), and the level of uncertainty of the values of these signs is quite high. Therefore, when searching for optimal values of the regulated parameters of the combine harvester, ensuring that the values of the work quality indicators do not exceed the permissible ones, it is advisable to use an intelligent information system. The use of this system will allow using various methods and algorithms for finding the desired solutions. In the conditions of uncertainty characteristic of the problem under consideration of adjusting the adjustable parameters of the machine, it is advisable to use a game-theoretic approach when creating an intelligent system for setting up a combine harvester. This approach will provide variability of methods for choosing the optimal strategy for finding a rational solution.Based on the analysis of the subject area, the concepts of performance indicator matrices and the risk of making an ineffective decision are introduced. The choice of a strategy for finding the reason for the deviation of the harvester’s performance indicator is considered based on three criteria: Laplace, mathematical expectation and Savage, widely used in decision-making tasks in the so-called “games with nature”. An example of choosing a strategy for finding the cause of a violation of the technological process of grain harvesting and an adequate response to eliminate it is given. The analysis of the calculation results is carried out, the conditions and scope of the proposed approach are presented.