Особенности разработки макромоделей надежности сложных электронных систем
Collection of theses of reports. XXI Scientific and technical conference of young scientists and experts. In 2 Volumes.
In sixteen sections 327 reports on scientific research, design and methodical developments, experimental works and also works on creation and introduction have been presented to improvement of methods of management and the organization of developments to production of progressive technological processes, materials. About a half of the submitted reports are prepared by the staff of RCC Energia.
As mobile communications technology is completing its fifth-generation (5G) cycle, it becomes increasingly capable of supporting novel usage scenarios with stringent performance requirements. Beyond seamless broadband connectivity for humans, 5G systems are preparing to enable a wide range of machine-type applications, thus advancing the vision of the Internet of Things (IoT). Facilitated by the rapidly converging 5G-IoT ecosystem, next-generation industrial IoT services, however, pose unprecedented research problems, primarily along the lines of providing wireless connectivity with ubiquitous availability, extreme reliability, and ultra-low latency. To this end, the first part of this paper presents a concise update on the novel requirements and challenges in the context of the emerging Industrial Internet infrastructure. In the second part, we introduce and solve a new optimization problem formulation aimed at improving performance reliability for advanced IoT devices equipped with several radio access technologies. We argue that by intelligently leveraging such heterogeneous multi-connectivity, future 5Ggrade IoT applications will be able to improve their levels of operational reliability. Our conclusions are corroborated by rigorous mathematical derivations as well as several realistic numerical examples.
In this work we considered the problem of reducing the recovery time of the electronic means in general. It is revealed that the key role in the evaluation of this parameter is the time of trouble-shooting. A solution to this problem was proposed, by using automation tools to monitor the parameters of secondary power supplies.
The German Justice Sensitivity Inventory was validated in a Russian sample (N = 1002, Mage = 22.3, SD = 6.3; 769 female). Justice sensitivity is a trait describing the extent to which a person is tolerant or sensitive to cases of injustice in everyday life and, as a result, is ready to act in order to restore justice. The four-factor structure of the Russian version of the inventory was confirmed, in line with the original version. The four scales were as follows: victim sensitivity, observer sensitivity, beneficiary sensitivity, and perpetrator sensitivity. Internal consistency reliability coefficients of scales ranged from 0.89 to 0.91. Gender differences were found: all justice sensitivity scores were higher in females. The age trend was also shown: the older respondents the higher perpetrator sensitivity and lower victim sensitivity and observer sensitivity. Discriminant validity was tested by means of Markers for the Big-Five Factor Structure, Basic World Assumptions, and Belief in a Just World scales. Convergent validity was examined by means of the Moral Motives Model scale. Validity of the Russian version of Justice Sensitivity Inventory was found satisfactory.
In the paper was solved the task of prediction of fiber cable operating life for automating of design study of reliability of optical-fiber transmission system. The paper offers generation method of mathematical models of complex coefficients, which brings out from the input models failure rates the coefficients, which considers the effects of regimes and conditions of usage of fiber cables on the durability indices.
The developed procedure does not require carrying out the experimental investigations and tests, based on the using of standardized models of failure rates and durability characteristics of fiber cables. Herewith for the prescribed modes and terms of usage of fiber cables automatically detected the right process of degradation, which determines values of operating life.
In contrast to the prediction technique of equipment operating life on the base of the probabilistic-physical failure patterns, the offered method operates with the dates, which are stated in the standard-technical documentation on the fiber cables, and allows to increase forecast precision of the operating life in comparison with the methods, which is recommended in the branch standards.
In the paper were developed software, which implements offered mathematical tool, by which were solved real-world forecasting problem of the operating live of the cable type ОК-ПН-01-5-60.
It is considered the distributed and centralized management systems by a supply of an onboard equipment to define and prove what indices of reliability are peculiar to the most widespread two types of topology of systems