DEVELOPMENT OF A VIRTUAL DEVICE FOR CONTROLLING THE CONDITION OF INDUSTRIAL UNITS NODES USING LABVIEW TOOLS

Abstract

This article is devoted to the research, construction, configuration and implementation of a virtual device for monitoring the condition of nodes ofcomplex industrial units. Modern units used in heavy engineering require no less modern means of management, control and diagnostics of damage tosuch units and their components. The development of the structure of control tools is based on multi-level or multi-stage procedures of transformationsof incoming measuring signals from aggregates. As the structure of the control device, a structure with a two-stage implementation of the spectraltransformation of measurement signals – with a primary static transformation and a secondary static transformation – was chosen. The basis of theprimary static transformation is the spectral transformation procedure based on the wavelet transformation. The basis of the secondary statictransformation is the procedure of linear discrimination with the indication of the decisive rule. The article demonstrates and implements approaches tobuilding a virtual device in terms of creating a block diagram, developing software, organizing the front panel of the device, setting up and carryingout simulation modeling for blocks of primary and secondary static transformations. The research uses the LabView platform. To prepare incomingmeasurement signals from nodes of industrial units, in the first block, the procedures of graduation, calibration and normalization of the target functionare carried out. To receive input measuring signals from units of industrial nodes, the COM port of the computer is used which, according to thedeveloped program, polls the COM port and inputs measuring signals to the primary static transformation procedure. The article describes a completevirtual control device that is formed and tested, which structurally contains all the blocks for achieving the control result and indicating the controlresult on the graphic interpretation of the computer.