Application of Dempster-Shafer Theory for Drying Process Control

摘要

Developing a control system for heat-technological devices according to manufactured products quality losses minimizing criteria, great attention should be paid to the experts’ accumulated experience. The article provides possible situations classification procedural model application example for pasty material drying process control in a five-section roller-belt drying unit. The absolute value of the moisture content of the material at the drying plant outlet is less than 1%. The proposed possible situations classification procedural model is based on the Dempster-Shafer method, which allows, on the numerical estimates basis experts’ confidence-building measures, to determine at the beginning of the process whether the required quality indicator could be achieved for the desired control parameters. Proposed drying process control procedural model usage made it possible to increase the probability of a high-quality product output up to ninety-eight percent.