This article explores a method for executing data collection systems based on the widely-used industrial protocol, Modbus TCP. In this configuration, the server is a program emulating the Modbus TCP protocol.To implement the client an algorithm and furnished a practical Python programming illustration that employs a lower-level socket library.

Keywords: python, socket, modbus

The article discusses the conducted studies of changes in the output signal from a measuring device to assess the quality of mixing natural and chemical fibers in semi-finished products of spinning production obtained on a belt machine at various transitions. The construction of polynomial models in data analysis makes it possible to interpret information about the uniformity of fiber distribution in the tape, without taking into account the effect on changes in its linear density.

Keywords: fiber mixing quality, linear density, infrared estimation method, data estimation, linear polynomial, polynomial function

The article discusses correlation methods of image identification. An algorithm of the "rare grid" method has been developed.

Keywords: image identification, algorithm, recognition, cutting, reference frame, element correlations, minimum search

The article discusses automatic selection of coefficients for PID controllers of quadcopter motors based on a 3D model. This selection became possible thanks to the method discussed in the article for exporting a 3D model of a quadcopter, created in the Solidworks CAD system, into the Matlab/Simulink environment, as well as with the further use of the SimMechanics library. To select the coefficients, a quadcopter control system is also implemented to the Simulink project, the signals from one sent to the motors in accordance with their physical location. The result of the article is a flight visualization of a 3D model of a quadcopter with a control system implemented in Simulink.

Keywords: solidworks, matlab, simulink, quadcopter, uav, pid, simmechanics

The article discusses the method of recognizing contours in the primary image. An algorithm has been developed for finding the absolute minimum of functionality in an image.

Keywords: contour, algorithm, defect, recognition, cut, reference frame, minimum search

The article presents the results of the calculation and analysis of the distribution of field strength in the area of the measuring ring of the capacitive transducer for various geometric dimensions of the electrodes. Also, the appropriate distance between the electrodes and their size in the primary converter system were determined to assess the quality of mixing natural and chemical fibers at the output of tape equipment.

Keywords: fiber mixing quality, electromagnetic field, capacitive estimation method, conformal transformations

The article presents the dependence of the change in the intensity of emission during the passage of an infrared flux through a two-component material, which allows for a fractional assessment of a mixture of natural and chemical fibers. On the basis of the obtained dependence on experimental data, a mathematical model has been constructed that makes it possible to quantify the distribution of dissimilar fibers in a mixture. The modelling results showed that after the second transition on the draw frame, the so-called "stretching" defect is observed, which characterizes the uneven distribution of fibers in the product cross section.

Keywords: emission intensity, infrared evaluation method, mixing of dissimilar fibers, fractional composition, measuring device