2019 International Siberian Conference on Control and Communications (SIBCON). Proceedings
2019 International Siberian Conference on Control and Communications (SIBCON). Proceedings
The paper reviewed and analyzed protocols, technologies for transferring and presenting IoT data, developed a model of a heterogeneous IoT network for hard-to-reach areas, proposed a method to improve the efficiency of data transfer in a heterogeneous IoT network. As a result of the work, a model of using the Internet of Things technology (LPWAN) in hard-to-reach areas was developed, information presentation methods were identified that allow solving the problem of collecting information from remote sensors located in the absence of traditional communication channels and a practical check of the results obtained. The paper uses simulation modeling to study the applicability of different methods of presenting information in the case of transmitting IoT data over low-speed satellite communications channels. The method proposed in the paper allowed the use of the Internet of things technology in remote areas using the SBD satellite short message service. The proposed method allowed reducing the volume and number of SBD messages during data transmission via low-speed satellite communication channels, which made it possible to reduce the cost of communication data transmission by 4.82 times.
This paper describes a model for processing IoT traffic with Gaussian distribution by decentralized routing devices. As a decentralized routing device, we chose a parallel spatial switching system and appropriate model. However, our model can also be used for other routing devices that have decentralized control and implement parallel processing of information packets on their ports. We obtained results that show the dependence of the queue lengths of information packets (transactions, agents etc.) on the time between arrival of these packets. We assumed that the service time of each packet is fixed.
2019 International Siberian Conference on Control and Communications (SIBCON) 978-1-5386-5142-1/19/$31.00 © 2019 IEEE Welcome message from the Technical Program Committee Chair Dear colleagues, On behalf of the Tomsk IEEE Chapter & Student Branch it is my honor to invite you to the IEEE International Siberian Conference on Control and Communications SIBCON- 2019. It is aimed to offers opportunities to exchange ideas, present results of ongoing researches and share information on the latest advance in communication and control system. All the traditional SIBCON topics are very well covered. It is Communications, Control Systems, Internet of Things, Methods of Measurement, Networking Control, Process Control, The Computer Measurements, Theory of Control. Since 1995 SIBCON represents significant achievements in allied control and communications design and application area. The Conference provides unique opportunities for experts as well as leaders in technology, application, and business areas to gather in Tomsk and to exchange ideas and information. Number of papers in all of those areas seems to be well balanced, which can be treated as a sign of maturity of the conference. A noticeable feature of this year's submissions is the large number of papers addressing 5G communications and related high frequency applications, reflecting the enormous significance of this sector. This year papers are distributed over eight tracks all scheduled for two days. Different levels and characters of presentations are accepted: presentation of research and scientific results, new ideas, valuable conclusions from experience, state of the art and instructive survey communications. The organizers expect this conference provided participants with an excellent opportunity to exchange ideas and information about their research findings, and to refresh personal contacts and establish new ones. Tomsk is an education and research center of Siberia, where many high level universities and research institutions are located. We are convinced that if SIBCON is held in Tomsk, it will be an impetus to the development of electronics in Siberia, and there will be further increase of academic exchanges and cooperation between the Siberian radioengineers and their colleagues in other countries and regions. The SIBCON application has won active support from various foundations, and our conference will be able to raise enough funds. Gratitude is also deserved for RFBR, and the IEEE ED-S as a technical co-sponsors. Please accept my highest salutation. I hope that you will enjoy the technical and cultural events prepared for you. Looking forward with the hope that you will accept our invitation, I remain friendly and sincerely yours, Program Co-Chair Oleg V. Stukach
The problem of regulators (controllers) design is extremely relevant in connection with the penetration into all technological areas of the methods of precise control of objects with feedback. Such devices are being more and more used, which increases the variety of controlled objects. This list includes all new objects of robotics and technological setups, which have much more complex mathematical models. One of the most urgent problems in this area is control of nonstationary objects. Parameters of mathematical model of these objects are given with some uncertainty, but not in fixed values, i.e. by only intervals of their possible changes. If the intervals are too wide, adaptive systems have to be designed, but if they are not too wide, then one can try to find a universal regulator setting that will be sufficiently effective for all ratios of the model parameters within the acceptable intervals of their changes. The paper proposes a new method of the numerical optimization of regulator for finding such a setting for the worst object model that is for the worst combination of all variable parameters. Finding the worst model is also carried out by a numerical optimization method, in which a combination of model parameters is found where the best regulator gives the worst result. The problem is proposed to solve in several optimization cycles with alternation of objective functions. The technique has been well illustrated by a numerical example.
We investigate the problem of image segmentation based on the color difference of regions. The aim of the research is to increase the processing speed of the image segmentation and improve the segmentation quality on textured images. We study the aspects of effective implementation of the image segmentation algorithm based on the minimum spanning tree graph, in particular, the use of different data structures for displaying segments. It is shown the dependence of the segmentation result on the color difference metrics. It is suggested the modification algorithm with the use of an array of singly linked list and with the sorting of the graph edges over linear time, which has resulted in 4 times speed gain. We propose the modification algorithm with the use of superpixelization, which avoids the resegmentation on the textured areas of the image achieved through the superpixel construction and its use as the graph nodes.
Most publications on the theory and practice of creating control systems are devoted to deterministic problems, when the input quantities and output characteristics have deterministic values or functions. In the article, the authors draw attention to the fact that all input and output signals, as well as the internal parameters of control systems, always have random variations. Technological random deviations have parameters for construction materials and electronic components and devices. In addition, the ambient temperature randomly influences the control systems, mechanical effects from the installation object, as well as temporary aging, wear and other factors. The authors draw attention to the insufficient number of publications devoted to the system discussion of probabilistic methods for studying control systems. In this article, the authors not only systematized the methods for studying random variations in the parameters of control systems, but also set forth their unified approach to solving the most frequently encountered problems of studying accuracy, stability, serial seriality and parametric reliability in the case of gradual failure of control systems. The necessary mathematical apparatus is given.
The modern level of technological advance allows the use of CAD systems at all the stages of the electronic communication modules development, which allows the designers to discard the time-consuming process of manufacturing and testing an experimental prototype. To organize the interaction of various CADs the design techniques are used. The report discusses the integrated cross-cutting design technique implemented using National Instruments software products. Their advantages and disadvantages are evaluated. The use of the NI LabView made it possible to implement a dynamic calculation of reliability indicators through the use of NI LabView Multisim Connectivity Toolkit, which confirmed the possibility of realization an integrated cross-cutting design technique.
The report discusses the use of National Instruments tools for dependability prediction of electronic devices by simulation modeling. The description of the laboratory bench allowing to develop formal models based on reliability block diagrams, to carry out simulation experiment and to process statistical modeling results, is given as well as an example of this bench usage for reliability prediction of power supply of the lightweight spacecraft.