2023 № 1 Гідравлічні машини та гідроагрегати
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/69634
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Документ Development of a virtual device for controlling the condition of industrial units nodes using LabView tools(Національний технічний університет "Харківський політехнічний інститут", 2023) Korzhov, I. M.; Mygushchenko, K. R.This article is devoted to the research, construction, configuration and implementation of a virtual device for monitoring the condition of nodes of complex industrial units. Modern units used in heavy engineering require no less modern means of management, control and diagnostics of damage to such units and their components. The development of the structure of control tools is based on multi-level or multi-stage procedures of transformations of incoming measuring signals from aggregates. As the structure of the control device, a structure with a two-stage implementation of the spectral transformation of measurement signals – with a primary static transformation and a secondary static transformation – was chosen. The basis of the primary static transformation is the spectral transformation procedure based on the wavelet transformation. The basis of the secondary static transformation is the procedure of linear discrimination with the indication of the decisive rule. The article demonstrates and implements approaches to building a virtual device in terms of creating a block diagram, developing software, organizing the front panel of the device, setting up and carrying out simulation modeling for blocks of primary and secondary static transformations. The research uses the LabView platform. To prepare incoming measurement signals from nodes of industrial units, in the first block, the procedures of graduation, calibration and normalization of the target function are carried out. To receive input measuring signals from units of industrial nodes, the COM port of the computer is used which, according to the developed program, polls the COM port and inputs measuring signals to the primary static transformation procedure. The article describes a complete virtual control device that is formed and tested, which structurally contains all the blocks for achieving the control result and indicating the control result on the graphic interpretation of the computer.