The analysis of statistical parameters for the production of agricultural machinery and parameters characterizing the reliability and quality of domestic tractors is carried out. It is shown that the organization of a system for collecting and processing information on the reliability of products is important from the point of view of quality and reliability of tractors. The experience of creating such a system is considered as exemplified by PJSC “Promtractor”.

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The implementation of the concepts of a smart home - smart city implies a high level of automation using control and measuring devices and equipment, as well as computer and informational technologies. One of the effective trends of automation is the widespread use of computer measuring systems Article presents the model of operation of a computer measuring system with digital data processing is proposed. The presented model is based on the semi-Markov model of operation of an analog-to-digital converter, on the semi-Markov model of an embedded personal computer, on the analytical formula for calculating the availability factor of computer measuring system. The analytical expression for the availability factor of a computer measuring system includes both the technical and operational characteristics of the computer, as well as the metrological and technical characteristics of the analog-to-digital converter. The specified expression allows to find the optimal value of calibration and verification interval. Determination of the optimal calibration interval required to control the metrological characteristics during long-term operation of the computer measuring system. The developed model can be used to set requirements for the metrological support of instruments and de-vices used in the framework of the automation trend in the sphere of housing and communal services.

The paper presents an example of mathematical modeling of the process of reproducing units of physical quantities by installations of the highest accuracy and their transfer to measuring instruments in the form of a non-stationary service system. The use of non-stationary service systems makes it possible to evaluate the efficiency of the process under overload conditions at the directive interval, as well as to evaluate the most important characteristics of the functioning process, for example, such as the probability of failure to perform reproduction and transmission of units of values by installations of the highest accuracy in a timely manner, etc.