T.A. Aliev, N.F. Musaeva.
Technologies for analyzing the condition of transport system facilities based on noise characteristics
The article considers the causes of malfunctions, damage and failures of transport system facilities. It is noted that traditionally monitoring systems are created to control the technical condition of transport system facilities. However, the algorithms and software of the existing systems do not take into account the fact that the occurrence of damage to transport system facilities is accompanied by the emergence of additive noises, which are superimposed on the useful signals coming from the corresponding sensors and correlated with them. Technologies are developed for analyzing the technical condition of transport system facilities as a result of calculating the relay and normalized cross-correlation functions, as well as the correlation coefficient between the useful signal and the noise of the noisy signal. Algorithms for analyzing the rate of change in the technical condition of transport system facilities by constructing a confidence interval for the mathematical expectation of the noise are proposed. Technologies for analyzing the performance of transport system facilities based on the proposed characteristics of the noise are developed. The results of a computational experiment are given and a comparative analysis is conducted. It is noted that the application of the developed algorithms and technologies allows detecting the latent period of malfunction occurrence, reduces the risk of destruction of transport system facilities as a result of timely routine and overhaul repairs.
Keywords: Transport system, Noise, Noisy signal, Normalized cross-correlation function, Confidence interval
DOI: https://doi.org/10.54381/icp.2023.2.02
Technologies for analyzing the condition of transport system facilities based on noise characteristics
The article considers the causes of malfunctions, damage and failures of transport system facilities. It is noted that traditionally monitoring systems are created to control the technical condition of transport system facilities. However, the algorithms and software of the existing systems do not take into account the fact that the occurrence of damage to transport system facilities is accompanied by the emergence of additive noises, which are superimposed on the useful signals coming from the corresponding sensors and correlated with them. Technologies are developed for analyzing the technical condition of transport system facilities as a result of calculating the relay and normalized cross-correlation functions, as well as the correlation coefficient between the useful signal and the noise of the noisy signal. Algorithms for analyzing the rate of change in the technical condition of transport system facilities by constructing a confidence interval for the mathematical expectation of the noise are proposed. Technologies for analyzing the performance of transport system facilities based on the proposed characteristics of the noise are developed. The results of a computational experiment are given and a comparative analysis is conducted. It is noted that the application of the developed algorithms and technologies allows detecting the latent period of malfunction occurrence, reduces the risk of destruction of transport system facilities as a result of timely routine and overhaul repairs.
Keywords: Transport system, Noise, Noisy signal, Normalized cross-correlation function, Confidence interval
DOI: https://doi.org/10.54381/icp.2023.2.02