No abstract

In the context of digitalization of the most knowledge-intensive sectors of the domestic economy, the development of an industrial training system in the field of electronic instrumentation is of great importance. The key areas of its development with the use of information and communication technologies include the development and improvement of the technological basis for training and retraining of personnel in engineering educational programs. One of the elements of this basis is the service of multi-user remote access via the internet to a high-tech experimental equipment laboratory as a service based on internet of things (IoT) systems. Within the framework of this service, an urgent problem is to increase the functional saturation of automated stands/installations, which is currently characterized by a paucity of scientific research. The purpose of the research is to expand the areas of experimental research carried out in the mode of multiuser remote access based on specialized IoT systems. As a result, a method of multidisciplinary application of specialized IoT systems was developed. This consists of the technical implementation of possibilities for additional research: research into technologies underlying both multi-user distributed measuring and control systems and IoT systems in general; research into technologies used in their end-to-end computer-aided design; research into joint interaction of several geographically distributed automated stands/installations, implemented on the basis of a four level IoT reference architecture. A methodology for the design of multi-user distributed measuring and control systems as specialized IoT systems has also been developed, focused on solving multidisciplinary research problems in an interactive dialogue mode based on single sample of experimental equipment. The methodology mobilizes organizational, technical and methodological support for the process of creating such systems with specified target characteristics. In general, the method and methodology developed open up opportunities for systematically implementing the basic principles of the “Education 4.0” concept in the preparation and retraining of engineering personnel in the field of electronic instrumentation.

Introduction: The rapid development of the information society is expressed in the emergence of new models of economic activity, forms of providing educational and social services, scientific activities, etc. оn the basis of constantly improving digital technologies. This, in turn, leads to the emergence of new requirements for knowledge and skills of modern engineers whose preparation is based on various laboratory studies. The modern form of realization of such researches is multi-user remote access from digital educational environment to specialized experimental equipment (laboratory installations/stands/layouts), providing efficient use of this equipment. Purpose: Comparative analysis of methods for increasing the throughput of experimental equipment with multi-user remote access. Methods: Management of user request service procedure based on scheduling algorithms which take into account the functional and parametric content of the processed requests (configuration settings of the object of study, type of measurements taken, parameters of test signals, etc.), as well as the features of the hardware construction. Results: On the basis of the proposed approach for multi-user distributed measuring-control systems the following methods are developed: 1. A method of minimizing control operations which determines the sequence of retrieving jobs from the queue in accordance with the minimum of total control time for all the requests currently in the queue. 2. A method of temporary division of multiple measurements, providing distribution of operations of statistical processing of measurement results between the software on a measuring-control computer and the user terminal. 3. A method of parallelizing functional operations which reduces the time to service the requests by programmatically splitting and concurrently performing the management and measuring operations for queued queries related to different control objects. A comparative analysis of the applied approaches has shown that the most effective, in terms of the cost of equipping a single user workplace, are methods based on managing the process of servicing the user requests. Practical relevance: The developed methods have made it possible to create a number of samples of multi-user distributed measuring-control systems for the automation of educational and scientific experimental researches with a 16–40% lower cost of equipping a workplace and with throughput of 30–50 concurrent users on the basis of one set of specialized experimental equipment.

No abstract

As part of the digital transformation of various areas of human activity, the urgent task is to transform existing business processes (BP) in order to increase their variability according to the needs of the customer, to increase productivity, quality and competitiveness of products. The introduction of end-to-end digital technologies allows for this. The article examines the experience of transforming the BP of experimental research in solving a number of applied tasks in the field of electronic instrumentation, which is obtained as a result of the introduction of operation technology for test, research and laboratory equipment based on the concept of multitenancy. Developed on the basis of the experience of the authors, a number of industrial samples and prototype multiuser distributed measurement-control systems implementing this concept have allowed to transform the following processes: end-to-end BP of tests on-board electronic equipment of spacecraft (communications, relay, navigation, geodesy, remote sensing, etc.); BP of forming the operational load of the spacecraft's on-board relay complex; BP of conducting experimental laboratory research in the industry training system. The effectiveness of modernized BP was evaluated on the basis of their formalized models and a set of qualitative indicators. The key resulting effects of transformation: improving the quality of BP by improving the informativeness of individual business functions and the efficiency of the use of high-tech experimental equipment; reducing the number of gaps in BP by reducing the number of business roles involved in their implementation; reducing the duration of BP by significantly reducing material and time costs and improving the productivity of individual business functions; transition to a service model "Laboratory As Service" for access to high-tech equipment while performing experimental laboratory studies based on digital educational environments.