DEVELOPMENT OF INFORMATION-MEASURING DIAGNOSIS SYSTEM WORKING CHARACTERISTICS OF ELECTRIC MOTORS

Abstract

The article explores a method for constructing an information-measuring system for diagnosing the performance characteristics of electric motors. The structure of such systems, features of signal transmission and methods of its transformation, as well as software for visualization and data processing are considered. Algorithmic and software developments are highlighted that provide a full cycle of processing the information parliaments of electric motors, from the transformation of a physical quantity into a unified signal, to data visualization. The structure of microcontrollers, which were used in the development of the measuring system, is investigated. In particular, the performance of the ESP8266 microcontroller, which was used to transfer data received from measuring sensors to a server application. The method of visualization of the obtained data using web-server technologies is highlighted. The proposed system was tested using a DC electric motor of the RS-775 series. The error of the measuring sensors used in the proposed system is determined by calculating the sample standard deviation from the expected results. Particular attention is paid to the development of server software in terms of processing signal parameters and visualizing its changes, the possibility of archiving arrays of received data, the possibility of changing the operating modes of the electric motor and ways of displaying information. The performance characteristics of a prototype device for measuring the torque of an electric motor based on an inductive sensor used as part of the proposed measuring system have been studied. The article presents the possibilities of using an information-measuring system in combination with additional measuring devices that can be connected to it using a local network, thus forming a distributed sensor network of measuring devices interconnected via a radio channel. The expediency of building such networks for remote objects, where unified (WI-FI, WI-MAX, GSM) data transmission technologies can be used, is substantiated.