No. 1 (2021)

Published: 2021-04-04

SECTION I. PROSPECTS FOR THE USE OF ROBOTIC SYSTEMS

  • CONTACT AND VISUAL BASED ENVIRONMENT CLASSIFICATION FOR MOBILE ROBOTS

    V.P. Noskov, I.V. Rubtsov, K.Y. Mashkov, A.V. Vazaev
    Abstract

    To increase the capabilities and expand possible applications of robotic systems for special
    purposes, switching from the currently being adopted remote control systems to semi-autonomous
    systems that monitor operator actions and perform part of his functions is proposed. Moving to
    autonomous control systems capable of functioning in the "silent" mode, in shielded areas andbeyond the range of radio communications is proposed as a next step. Such intellectualization of
    on-board control systems will allow to eliminate fundamental limitations and disadvantages
    caused by the communication channel and ensures the implementation of robot group control. It is
    shown that the basis for robot autonomy increasing of on-board control systems, both for movement
    and tool control, is onboard environment model generation and determining the coordinates
    of the control object. External environment model and current coordinates makes it possible to
    automate the trajectory planning and movement, which ensures the autonomous functioning of
    robotic systems. The complex problem of environment segmentation according to geometric and
    ground passability is considered, taking into account the characteristics of the chassis, the geometry
    of the relief and the supporting properties of the ground. The existing methods are described
    and the results of experimental studies are given to solve the following main tasks: – classification
    of the operation zone according to geometric passability based data from the onboard technical
    vision system; – ground types recognition according to the integrated technical vision system; –
    using the apparatus of neural networks to improve the reliability of ground types recognition; –
    determination of ground reference characteristics by measuring the reactions of the chassis during
    movement. The promising directions for further research in integrating tactile and visual information
    to improve the reliability of the classification of operation zone according to the complex
    criterion of geometric and support passability are formulated.

  • WIRELESS SENSOR NETWORKS IN PROTECTED AREAS

    G.P. Vinogradov, A.S. Emtsev, I.S. Fedotov
    Abstract

    For military purposes, wireless sensor networks allow you to "link autonomous systems" into a
    complex that has the property of self-organization, when objects "know" how to find each other and
    form a network, and in the event of a failure of any of the nodes can establish new routes for transmitting
    messages. It is possible to achieve the desired efficiency of such complexes, mainly by improving
    the intellectual component of their control system in general and individual node in particular.
    However, it should be noted that the vast majority of research in this area remains at the theoretical
    level. The goal is to: 1) the study and development of algorithms for network design with mobile
    nodes and their possible failures due to the combat mission; 2) the study and development of site use
    sensor network to collect, analyze, and transmit data about the situation and decision-making in the
    area of responsibility; 3) to offer relatively simple algorithms for giving the network node the property of intelligent behavior under the conditions of restrictions on power consumption and speed.
    It is shown that the required algorithms can be developed if the classes of typical situations and
    successful methods of action in real conditions are identified. On this basis, it becomes possible to
    develop formal models (patterns) for implementation in the node management system. A two-level
    structure of an intelligent network management system is proposed. The upper level, implemented
    by the operator, corresponds to such properties as survival, security, fulfillment of mission obligations,
    accumulation and adjustment of the knowledge base in the form of effective behavior patterns.
    The object of control for it is the network, considered as a functional system.

  • DEVELOPMENT OF A HYBRID METHOD FOR PLANNING THE MOVEMENT OF A GROUP OF MARINE ROBOTIC COMPLEXES IN AN A PRIORI UNKNOWN ENVIRONMENT WITH OBSTACLES

    А.М. Maevsky, R.O. Morozov, А. Е. Gorely, V.A. Ryzhov
    Abstract

    The article discusses the problem of organizing the group movement of marine robotics
    (MRS), in particular, unmanned autonomous underwater vehicles (AUV), in an a priori unknown
    environment with obstacles. A brief analysis of existing projects on the subject of MRS group control,
    and path-planning algorithms have been carried out. The presence of numerous studies in
    this area confirms the relevance of the indicated problem. The formal statement of the problem of
    the movement of four robots in formation is presented. The proposed method for a group path
    planning is based on a combined approach that organizes a multi-level solution to organizing the
    movement of MRS. At the upper level, a system for global path planning and mission control was
    developed based on the random tree method, which provides the general movement of the group
    based on a priori information about the state of the environment. The lower-level planning system
    adjusts the global path, allowing objects at the local level to carry out the group agents’ movement
    and interaction, including ensuring their collision-free movement in environment and exit from the
    areas of local minima. The article provides a detailed analytical description of the developed algorithm
    and a block diagram of its functioning. Numerical simulation of the movement of a group
    of 4 AUVs in a non-deterministic environment with fixed obstacles is carried out. The simulation
    was carried out taking into account obstacles of various shapes and complexity. The results of
    mathematical modeling demonstrated the solution to the problem of the exit of the AUV group
    from the area of the local minimum. Full-scale tests are presented on the example of a group of
    three unmanned boats: a group of mobile objects formed a formation and carried out a movement
    in a given formation to target positions and returned to the final zone. In addition, the local planning
    module developed within the framework of this article was integrated into the software of the
    "Shadow" underwater glider control system. In the conclusion, the results of the proposed method
    and its further development, in particular, its application in 3D environment, are considered.

  • OPERATIONAL AND TACTICAL REQUIREMENTS FOR THE SYSTEM OF COUNTERING GROUND-BASED RTK VN MEANS OF ELECTRONIC DESTRUCTION (SUPPRESSION) OF THE ENEMY

    A.I. Nagovitsin, B.B. Molotkova
    Abstract

    The analysis of vulnerable systems and elements of a typical robotic complex is carried out. It
    is concluded that the greatest danger is represented by the vulnerabilities of the control channels of
    the RTK HV from the means of electronic suppression. The classification of the main threats for the
    RTK control channels, as well as the results of the analysis of possible effects from the impact of the
    threats described above on each of the channels are presented. The evaluation of the effectiveness of
    the radio control channel when using active masking interference stations (SAP) and the evaluation
    of the effectiveness of the data transmission channel when using SAP. Based on the evaluation of the
    effectiveness of the radio control channel and the data transmission channel when the enemy uses
    active masking interference (SAP) stations, a possible effective control zone is determined, which is a
    circle of different radii with the center at the location of the PU. Taking into account the general
    technical requirements for types of weapons and military equipment, the main operational and tactical
    requirements for the RTC VN counteraction system in terms of radio-electronic protection are
    formulated, such as electromagnetic compatibility( EMC), noise immunity and noise immunity, radiotechnical
    masking of radio-electronic means (RES), protection of RES from enemy radio-electronic
    counteraction, protection of RES from electromagnetic and ionizing radiation of a nuclear explosion,
    reduction in the effectiveness of enemy radio-electronic reconnaissance, the security of computer
    means of PPDU and samples of NRTS VN from destructive information influences and others. Taking
    into account the general technical requirements for types of weapons and military equipment, the
    main operational and tactical requirements for the anti-RTK VN system in terms of electronic protection
    are formulated. The requirements for the RES of the PPDU and the samples of the NRTC of the
    HV for limiting the power flux density of the electromagnetic field created by the radiation of the
    heterodyne of the transceiver device in order to exclude the recognition by the equipment of direct
    reconnaissance (detection) of the enemy's REP and SNO means are defined. In conclusion, the conclusion
    is formulated that the proposed list of operational and tactical requirements for the system of
    countering the RTC VN means of electronic destruction (suppression) of the enemy and recommendations
    for limiting the power flux density of the electromagnetic field created by the radiation of radio
    transmitting devices of the control systems of the RTC VN should be fully taken into account when
    developing and creating control systems for ground-based robotic complexes for military use. In
    addition, when developing military robotic systems, it is necessary to take into account the everincreasing
    capabilities of promising means of electronic destruction (suppression).

  • INCREASING THE SEARCH CAPABILITIES OF AUTONOMOUS UNINHABITED UNDERWATER VEHICLES THROUGH THE USE OF MULTI-CHANNEL MAGNETOMETRIC SYSTEMS

    N.A. Sokolov, A.V. Rychkov
    Abstract

    The article substantiates the relevance of solving the problems of searching for unexploded
    ordnance, as well as archaeological and geological surveys in the waters of inland waters and
    coastal zones of the Russian Federation. Using examples of mine clearance operations in the Baltic
    Sea and a detailed magnetometric survey of the Phanagoria water area, the extensive capabilities
    of modern equipment for localization of objects covered by bottom sediments and visually
    invisible on the bottom surface are shown. The advantages of using autonomous uninhabited underwater
    vehicles for the method of searching for ferromagnetic objects based on the registration
    of spatially distributed magnetic anomalies are considered. The directions of development of multichannel
    magnetometric search tools are shown. The potential capabilities of multichannel
    magnetometric systems for identifying search objects are revealed. Using the example of the existing
    technology of diving search, it is shown that the rate of exploration provided in this way is
    extremely low even under the most favorable conditions: the best visibility, a gentle slope of the
    bottom with a solid base. At the same time, the time for exploration of a section of the water area
    by diving along one shore will be about 5 hours in favorable conditions, and, therefore, this method
    cannot be used when examining large water areas. Taking into account the level of technology
    achieved at the present stage, it is proposed to use autonomous uninhabited underwater vehicles
    with a multi-channel magnetometric system installed as a target load for automating underwater
    operations. In addition to automating the process of performing tasks, the use of uninhabited underwater
    vehicles will either completely eliminate or significantly reduce the dangerous impact on
    humans of measures to search for unexploded ordnance and harmful factors of deep-sea operations,
    as well as reduce material and time costs by reducing operations for servicing diving
    equipment. Processing the survey results and creating a map of magnetic anomalies will allow you
    to identify structures whose geomagnetic properties are markedly different from the natural magnetic
    background. Such a technique can significantly increase the information content and reliability
    of the results of the survey of water areas, providing the identification of visually invisible
    objects that have their own magnetic field. Based on the theory of the electromagnetic field and
    magnetostatics, a method for calculating the parameters and efficiency of the multichannel
    magnetometric system for uninhabited underwater vehicles has been developed. The method is
    designed to evaluate the parameters and capabilities for detecting ferromagnetic objects and to
    make a preliminary assessment of the search efficiency. As a criterion (achieving a positive result
    of evaluating the parameters and efficiency of the multi-channel magnetometric system), in accordance
    with the IMAS Mine Action Standards, the following condition is accepted: detection of
    an object of a certain type at a given depth. The influence of the above data on the solution of the
    problem was evaluated as a result of computer simulation in the software environment of the computer-
    aided design system MathCAD with further visualization of the results.

  • DETERMINATION OF THE COORDINATES OF RADIATION SOURCES IN PASSIVE RADARS BY THE AMPLITUDE METHOD

    V.D. Syten'kij, I.I. Markovich, Е. Е. Zavtur
    Abstract

    An amplitude method for determining the radiation sources coordinates in passive radar is
    considered. An algorithm for calculating the coordinates of radiation sources in the passive mode
    of radar stations based on the reception of electromagnetic oscillations regularly damped in space
    by antennas in a collinear arrangement is synthesized. The mathematical relationships necessary
    to determine the coordinates of the target are obtained by solving the corresponding triangles
    formed by the antenna bases and the target. This made it possible to determine the location of the
    radiation source (target) by the point of intersection of the hyperbolas with the foci at the locations
    of the receiving antennas. Analytical expressions are given for determining the coordinates
    of targets in Cartesian and polar coordinate systems. The error analysis of the proposed algorithm
    was carried out taking into account the method of indirect measurements. The case of uniform
    distribution of noise over space, additively related to the signal and uncorrelated with it, is investigated.
    The formula for the root-mean-square deviation of the target range is obtained. The results
    of calculations of estimates of the absolute errors in determining the location of the radiation
    source, which depend on its location on the plane and show that the absolute error in determining
    the location of the radiation source, is minimal near the origin and increases with distance from it,
    are presented. Synthesized and investigated algorithm, due to the simplicity of the hardware implementation,
    can be used in passive location systems both independently and in addition to the
    widely used differential rangefinder method based on measuring the mutual time delays of the
    received signals.

  • DIGITAL PLATFORM FOR THE CREATION OF DISTRIBUTED CONTROL AND NAVIGATION SYSTEMS FOR UNDERWATER VEHICLES

    V.F. Filaretov, D.A. Yukhimets, A.V. Zuev, A.S. Gubankov, D.D. Minaev
    Abstract

    The paper proposes the architecture of a digital platform for the implementation of distributed
    control and navigation systems of underwater vehicles (UV), that perform technological operations
    in an uncertain environment. The proposed digital platform is designed to automate the
    following activities: monitoring the state of underwater infrastructure objects (communication
    lines, pipelines, mining equipment, etc.), cartographic and geodesic works, determining the parameters
    and boundaries of physical fields, zones of distribution of chemical compounds (pollution
    zones) and bioresources, protection of underwater and surface infrastructure objects (underwater
    mariculture farms, borders of water reserves, etc.), tracking moving objects, searching for objects
    of a given type (biological, man-made, etc.), performing underwater technological operations
    (welding, cutting, cleaning, etc.). For this platform, a command system has been developed that
    provides flexible assignment of various types and purposes of UV missions. There are five types of
    digital platform messages: mission order management commands, mission load management
    commands, information messages, mission and group control commands. The concept of building
    distributed control systems of the UV is proposed, which ensures the compatibility of existing onboard
    UV systems with the proposed solution based on the combined hydroacoustic systems of
    global hydroacoustic navigation developed in PAO "Dalpribor" (Vladivostok). These control systems
    consist of two main parts. The first part is the initial on-board information and control system
    of the UV, which ensures its movement to a given point in space at a given speed, receiving
    data from on-board sensors, as well as controlling the operation of on-board equipment. The second
    part – the high level control system, provides the possibility of interaction of the control system
    through an acoustic communication channel with the global hydro-acoustic navigation system
    and the operator's automated workplace. Simulation of the data transfer in CoppeliaSim between
    the operator and the UV within the proposed digital platform have shown that reliable mission
    loading and receiving information about the state of the UV is provided at different speeds and
    under different operating conditions of the acoustic communication channel.

  • ALGORITHM FOR MANEUVERING AN AUTONOMOUS UNDERWATER VEHICLE WHEN NAVIGATING A SHIP THROUGH A MINED AREA

    V.S. Bykova, A.I. Mashoshin, I.V. Pashkevich
    Abstract

    One of the tasks assigned to the autonomous underwater vehicles (AUV) is the fight
    against mine danger, which includes: 1) search for and destroy mines in the mined area;
    2) ensure their own safety when passing through the mined area or when working in this area;
    3) ensure the navigation of ships (including submarines) through the mined area. AUV can be
    considered as a further development of mine-fighting equipment, since they have a number of
    advantages over mine-fighting ships: 1) exclude the loss of life in the event of a mine explosion;
    2) have a lower level of physical fields to which the fuses of sea mines react; 3) are able to maneuver
    at the optimal depth for searching and classifying mines. In view of this, the creation of
    specialized AUV to combat the mine danger is very important. The search for mines with the
    help of AUV can be carried out either in the interests of their destruction (clearing the area) or
    for the purpose of guiding ships through the mined area. This article deals with the second
    problem. The description of the maneuvering algorithm of the AUV when ensuring the passage
    of a vessel through a mined area is given. The task is solved by detecting different types of
    mines using hydroacoustic and magnetometric means of searching and classifying underwater
    objects and bypassing of the mines at a safe distance. To reduce the time required to solve the
    task, the detected underwater objects are classified into the "mine-like object" and "other objects"
    classes. The use of the "mine-like object" class, which includes both the actual mines and
    objects that are indistinguishable from mines at the distances of their detection by means of
    mine search, allows you to avoid approaching detected underwater objects at a distance of their
    confident classification using high-frequency sonar and television equipment, and thereby increase
    the safety of the AUV and reduce the time of passage through the mined area. The algorithm
    takes into account the fact that the minimum safe distance between vessel and mine greatly
    exceeds the range of detection of mines of different types that does not allow AUV to find a
    safe vessel passage through the mined area by a single crossing and requires complex maneuvering
    of the AUV. Algorithm is intended for implementation in the AUV control system.

  • AIRCRAFT FLIGHT PATH PREDICTION UNDER COMPLETE PARAMETRIC UNCERTAINTY

    V.V. Kosyanchuk, V.V. Glasov, E.Y. Zybin, Liguo Tan
    Abstract

    Most of the methods for predicting the behavior of dynamic systems are based on the information
    about the parameters of their mathematical models. However, the problems of
    nonstationarity, nonlinearity and nonidentifiability of models of real complex systems lead to the
    fact that traditional parametric methods are applicable in practice only when the parameters and
    structure of models of systems are reliably known, and the uncertainties in the formulation of the
    problem are significantly limited. The article describes an original nonparametric method for
    predicting the aircraft flight path under absence of a priori information about the parameters of its
    mathematical flight dynamics model. The proposed method, unlike similar widely known ones,
    does not use logical or statistical calculations and does not require its preliminary training or
    long-term tuning. It is based only on the basis of a retrospective analysis of several sequential
    values of the spatial coordinates of the aircraft and its control signals, therefore it is not subject to
    model errors and can be used to predict the flight path of the aircraft under complete parametric
    uncertainty, even in the case of non-identifiability of its flight dynamics model. The results of numerical
    simulation of the solution to the problem of predicting the flight path of an unmanned
    aerial vehicle of the most common type of quadrocopter under complete uncertainty in parameters
    of its mathematical model are presented. The results obtained confirm the efficiency of the developed
    method and show high performances of the accuracy of solving the problem and the speed of
    tuning the algorithm. The described approach can be used to predict the motion path of any other
    vehicle (car, ship, etc.), if its model is linearizable over the observed time interval and there is
    information about its control signals. Practical implementation of the described nonparametric
    method together with traditional parametric ones will improve the accuracy of flight path predicting
    and solve the problem of high-precision landing of an unmanned aerial vehicle on an actively
    maneuvering ship, and specifically in the event of various critical situations.

  • INVESTIGATION OF THE IMPACT OF COMPLEX FIRE CONDITIONS ON THE QUALITY OF SURVEILLANCE AND FLIGHT SAFETY OF UAVS

    M.I. Mokrova
    Abstract

    Aviation monitoring of fires with the help of unmanned aerial vehicles (UAVs), in particular,
    forest ones, during which the search for various objects of interest is carried out: people, cars,
    etc., is one of the most effective measures to reduce the level of possible losses. In this paper, we
    consider approaches to the formation of algorithms for processing and improving images obtained
    in the process of monitoring the fire situation, based on the use of neural networks, as well as
    image filtering algorithms, in order to search for various objects of interest. Fire monitoring using
    an UAV is a two-criteria task: there is a need to protect the device from the thermal effects of the
    fire as much as possible, as well as to maximize the observability, which can be achieved by reducing
    the altitude of the flight. This paper presents the empirical models developed by the authors for
    the flight safety of an unmanned aerial vehicle and the observability of objects of interest in the
    process of monitoring the fire situation. The proposed models allow us to take into account the
    features of the monitoring conditions, such as the priority of detecting the object of interest to the
    security of the reconnaissance vehicle itself, air humidity, terrain and type of terrain, time of day,
    and so on. An example of the application of the contrast model is considered on the example of the
    search and detection of the "letter"label. On the basis of the conducted experiment on the recognition
    of the mark in the smoke, the analysis of the proposed models is carried out, the quantitative
    results are given. The paper describes the criteria for the optimal choice of the altitude of the
    flight of the device over the observed scene, which are formed on the basis of the base of expert
    assessments, as well as the proposed models of the observability and safety of the UAV flight. Depending
    on the target search task, the optimality criterion for choosing the UAV flight altitude
    over the observed scene may vary.

  • COMMUNICATION AND DATA TRANSFER IN DISTRIBUTED ROBOTICS SYSTEMS

    I.O. Shalnev
    Abstract

    The robotic systems building approaches is analyzed in this paper. Robotics systems can be
    considered as a distributed system which interacted between individual components of the robotic
    system and interacted between robotic systems within a single complex. In first case a robotic
    system can be a collection of individual modules within a single robot. For example, individual
    motors, servo drives for camera control, and the camera itself control of the unmanned aerial
    vehicle (UAV) can be considered as separate modules of the entire UAV within a distributed robotic
    system. In second case robotic system devoted to a massive of connected robotic system. Forexample, each UAV is a robotic system which is a part of whole robotic system that define UAV
    group interaction. An approach that allows a unified way to describe such robotic systems hierarchy
    is needed. In the field of robotics systems, there are many approaches to building it, which defines
    the means of communication and data transfer. This paper describes the existing approaches,
    their advantages and disadvantages, and suggests another approach for creating distributed robotic
    systems. Each nodes network connection in the existing approaches is provided by transferring data
    with their subsequent processing The article describes an approach based on the encapsulation of
    executable code in transmitted network packets. The object interaction is carried out through the
    control data transfer that interpreted by a distributed virtual machine. The object-oriented programming
    (OOP) paradigm extension by the concept of a complementary object, allows to create a distributed
    system that abstracted from the network programming difficulty. An object-oriented approach
    based on complementary object usage allows to develop a distributed system as a single program,
    concentrating on the implementation of logic. So we passing from the distributed system as an
    implementation of separate modules concept to the single distributed program concept without a
    “syntax breaking”.The proposed approach allows to represent a distributed robotic system in the
    OOP paradigm as a set of objects interacting over a communication network.

SECTION II. CONTROL AND SIMULATION SYSTEMS

  • SPECIAL MODELS, ALGORITHMS AND SOFTWARE FOR PROACTIVE GROUP BEHAVIOR CONTROL OF ROBOTS

    O.V. Kofnov, S.A. Potriasaev, B.V. Sokolov, P.M. Trefilov
    Abstract

    The paper describes the proactive control of robots group behavior using Behavior-Based System
    models, where the intellect is formed by a physical entities behavior. The observed complex is an
    array of distributed agents functioning in real time under disturbances. John Boyd’s OODA loop
    model is used to describe the control system work cycle of such network object. The input data of the
    control task are a planning horizon, a group action scenario, an array of agents and their possible
    elementary operations, a set of scenarios using restrictions and a quality indicator of the controlproblem solution. The output data is the distribution plan of agents in space and time to realize the
    scenario under restrictions. The developed technology predicts the environmental disturbances. The
    complex predictive modeling methodology for a self-organized robots group control is used with
    logical-dynamic models. One of the key advantages of developed combined models, methods, algorithms
    and software is the possibility to coordinate analytical and simulation control models of complex
    dynamic objects and their logical-algebraic analogs and models based on intelligent information
    technology. This coordination is on the conceptual, model-algorithmic, information and software
    detailing levels. The special language for modeling, planning, proactive monitoring and control
    task description is also developed. This language can be used for dialog interaction, calculation
    planning and data mining too. The proposed method main advantage is the non-isolated, but integrated
    solving of robotics configuration (reconfiguration) modeling, planning and management with
    the structural dynamics proactive control common problem solution.

  • A NEW ALGORITHM FOR CONSTRUCTING THE SHORTEST TOUR OF A FINITE SET OF DISJOINT CONTOURS ON A PLANE

    А. А. Petunin, E.G. Polishchuk, S.S. Ukolov
    Abstract

    The problem of tool path routing for the CNC thermal cutting machines is considered.
    Pierce points are located at the parts bounding contours, consisting of straight-line segments and
    circular arcs. Continuous cutting technique is used, each contour is cut out entirely, and no presampling
    occurs, so cutting can start from any point on the contour. General problem of minimizing
    the route length is reduced to minimizing the air move length. It is shown to be equivalent to
    finding the shortest polyline with vertices on the contours. New algorithm for constructing such a
    broken line for fixed order of contour traversing is proposed. The resulting solution is shown to be
    a local minimum. Some sufficient conditions are described for the it to be also a global minimum,
    which can be easily verified numerically, and some even visually. A technique is described for
    automatically taking into account precedence constraints for the practically important case of
    nested contours. This also decreases the size of the problem, which has a positive effect on the
    optimization time. A heuristic routing algorithm based on the variable neighborhood search (VNS)
    is proposed. Alternative approaches to the use of other discrete optimization methods along with
    the proposed algorithm for constructing the shortest polyline for solving the complete problem of
    continuous cutting, and the resulting difficulties of both theoretical and practical nature are described.
    The generalization of the problem of continuous cutting to a wider class of problems of
    (generalized) segment cutting is described, which makes it possible to advance in solving the problem
    of intermittent cutting. The scheme of application of the proposed algorithm for solving problems
    of generalized segment cutting is described. The results of numerical experiments are considered
    in comparison with the exact solution of the GTSP problem.

  • CAPABILITIES OF VIBROACOUSTIC EXAMINATION AND DIAGNOSTICS OF VEHICLE SUSPENSION

    A.V. Logunov, A.L. Beresnev
    Abstract

    The work is devoted to the problem of diagnosing the suspension of vehicles. The problem of
    monitoring the condition of the suspension is now the most urgent due to the constant growth of
    the vehicle fleet and the tightening of requirements for their safe operation. Timely and accurate
    monitoring of the condition of the suspension can prevent the failure of entire vehicle components,
    as well as avoid such serious consequences as a road traffic accident. In the work, modern diagnostic
    tools are considered in detail, the principles of operation, advantages and disadvantages
    are highlighted, the rationale for choosing from the existing methods one that can help most accurately
    and quickly detect a malfunction is presented. With the advent of modern technologies, the
    well-known method for assessing the state of the suspension by sound can become the most advanced,
    since the human factor is excluded, computer technology is used to process the signal, the
    analysis of the sound spectrum in which is carried out using computer technology. The article
    discusses mechanisms that are capable of generating sound signals. The proposed diagnostic
    method makes it possible to single out "useful" sounds from the total number of suspension noises,
    after a comparative analysis, indicate the node whose sound differs from the standard, serviceable
    one. This solution in diagnostics can significantly reduce the overall labor intensity by eliminating
    partial or complete disassembly of the suspension, as a result, despite the simplification, the accuracy
    of fault detection will only increase. The aim of the work is to study the vibroacoustic signals
    emitted by the suspension units. With the help of sensors, the signals are read out, then mathematical
    processing takes place on a computer. As a result of the research, a diagnostic method has
    been developed that allows detecting hidden defects of suspension assemblies and determining the
    degree of wear. The scientific novelty lies in the fact that the diagnostic process becomes automated,
    all signals taken by the sensors are processed in a computer or a special scanner, information
    about the state of certain nodes is displayed on the display, in contrast to existing methods, where
    diagnostics is carried out visually or by ear. thus, it becomes possible to avoid mistakes.

SECTION III. POWER ENGINEERING SYSTEMS, DRIVE AND SENSOR EQUIPMENT

  • THE METHOD OF ESTIMATION POSITIONS OF THE UAVS BY MEASURING THE DISTANCES BETWEEN ELEMENTS OF THE GROUP

    V.A. Kostjukov, M.Y. Medvedev, V.K. Pshikhopov, E.Y. Kosenko
    Abstract

    Currently, the active use of groups of robots has begun to solve a number of tasks for civil
    and military purposes. In this regard, problems arise associated with group management, the organization
    of reliable communication channels and ensuring the effective functioning of the group
    with limited energy resources. When solving the problem of optimizing energy consumption, the
    problem of increasing the efficiency of interaction of the elements of the group with stationary
    charging stations arises. This problem can only be solved by considering an integrated system,
    which includes robots and charging stations. Centralized management of such a system is justified
    in the case of a small number of its elements. However, with an increase in the number of elements
    in a group, the complexity of management increases, so a combination of centralized and decentralized
    management methods becomes a higher priority solution. The complex of problems of
    decentralized management of such a group includes the task of organizing the optimal interaction
    of its elements in order to achieve the goal of its functioning. When organizing energy exchange
    between robots and charging stations, solving this problem plays a key role in optimizing energy
    consumption. In this article, the concept of the interaction of mobile and stationary objects is developed,
    which implies the possibility of each agent choosing an appropriate companion for interaction.
    This choice is made taking into account the current state of the system and the assessment
    of the history of interaction results. The developed concept is detailed for a system that includes
    UAVs and their recharging stations. An algorithm is proposed for the decentralized selection of
    pairs of interacting elements "UAV - charging station" based on two indicators - the energy efficiency
    of the charging process, and the time spent by the UAV to reach the target point. Both indicators
    are taken into account when choosing the weights assigned to each charging station as its
    degrees of efficiency. Also, these indicators are included in the optimized quality criterion. An
    optimization procedure has been developed, the result of which is the number of the charging station
    that is most suitable for a given mobile object for interaction.

  • ORGANIZATION OF THE ELECTRIC NETWORK OF THE HYBRID POWER SUPPLY SYSTEM OF AUTONOMOUS UNDERWATER VEHICLE

    N.K. Kiselev, L.A. Martynova, I.V. Pashkevich
    Abstract

    The aim of the study is to organize the power grid of a hybrid power supply system for an autonomous
    underwater vehicle capable of moving in a wide range of speeds. The need to move the
    autonomous underwater vehicle in a wide range of speeds requires the use of heterogeneous sources
    of electricity operating on different physical principles - storage batteries and electrochemical generators
    using reagents from the reagent storage. In addition, in order to provide consumers with
    electricity with the required parameters (currents, voltages, volumes of electricity), it is necessary to
    use additional switchboards, voltage converters, protective switching equipment, keys. The use of
    additional equipment in the power grid allows you to flexibly configure the power grid in order to
    generate energy in an amount consistent with the amount of electricity consumed. On the other hand,
    additional equipment causes losses of electricity in the network, and, accordingly, additional electricity.
    In this regard, the task of determining the option for organizing the power grid, at which the loss
    of electricity would be minimal, is relevant. To solve this problem, the features of the use of additional
    equipment in the power grid were analyzed, the consumption of electricity by an autonomous underwater
    vehicle at different stages of a route assignment was analyzed, the minimum and maximum
    volumes of consumption were determined when an autonomous underwater vehicle moved in different
    speed modes. This made it possible to determine the degree of involvement of heterogeneous
    sources of electricity in the process of performing a route assignment. Based on the results of the
    analysis, alternative options for the power grid were formed. To select the option of the organization
    that ensures the minimum losses of electricity, a target graph of the effect of losses on individual
    devices of the power grid was formed - on the losses of the entire power grid, and using the method of
    distributing tags, quantitative estimates of each of the alternative options were obtained. Teaching
    quantitative assessments made it possible to determine the option of organizing an electrical network
    that minimizes losses. This allows, in turn, to formulate the requirements for the functioning of the
    elements of the hybrid power supply system, to develop control algorithms. In general, the result
    obtained makes it possible to minimize the consumption of energy resources during the movement of
    an autonomous underwater vehicle throughout the entire duration of the route assignment.

SECTION IV. COMMUNICATION, NAVIGATION, AND HOVER

  • THE METHOD OF ESTIMATION POSITIONS OF THE UAVS BY MEASURING THE DISTANCES BETWEEN ELEMENTS OF THE GROUP

    V.A. Kostjukov, E.Y. Kosenko, M.Y. Medvedev, V.K. Pshikhopov, M.V. Mamchenko
    Abstract

    Important problems in the development of mobile robotics are the task of autonomous navigation,
    automatic movement control and providing a reliable communication channel. For navigation,
    an unmanned aerial vehicle can use its own inertial navigation system and a satellite navigation
    system. The purpose of this article is to develop a method for reducing errors in the operation
    of the inertial navigation system of UAVs caused by the presence of random and systematic errors.
    In this case, we consider the situation of a monotonous increase in the systematic error over time.
    Usually, navigation data obtained from the satellite does not contain a significant systematic error
    in determining the coordinates. However, the satellite signal may be lost for a time significantly
    longer than the period of transmission of navigation data from the satellite in normal mode.
    As a result, there is a problem of increasing the accuracy of the data received from the inertial
    navigation system. This problem is particularly relevant for group application of UAVs. When
    solving group control tasks, it becomes necessary to prevent vehicle collisions and possible collisions
    already at the stage of traffic planning. In addition, to solve a number of group tasks, such as
    monitoring the terrain, conducting rescue operations, searching for objects in a given area, and
    joint cargo transportation, individual objects of the group must move smoothly in space with great
    accuracy. This imposes more stringent restrictions on the accuracy of the inertial navigation systems
    processing and the frequency of information exchange. In this paper, we propose a method
    that allows, based on data obtained from local systems that measure the mutual distances between
    objects in a group. This information allows correct the estimates of their own coordinates in such
    a way as to reduce the standard deviation of the corrected set of points from the true positions of
    objects at a given time. The method also reduces the maximum value of the corresponding deviation
    in comparison with the original set of estimates obtained from the navigation data of the INS.
    The method is demonstrated by the example of increasing the accuracy of determining global coordinates
    in a group of UAVs.

  • DEVELOPMENT OF A RELIABLE RTC COMMUNICATION METHOD BASED ON A GROUP DATA SEPARATION METHOD BASED ON A RESIDUAL CLASS SYSTEM

    Y.N. Kocherov, D.V. Samoilenko
    Abstract

    The paper considers a reliable method of data transmission in commu-nication systems and
    control of robotic complexes. Due to the fact that a change in part of the encoded information
    transmitted through com-munication channels can lead to partial or complete loss of data and, as
    a consequence, lead to loss of control over the robotic complex. There-fore, it is necessary to apply methods of protecting data transmitted over radio channels. The proposed method is intended
    to ensure the protection of information in the communication channels of robotic complexes from
    the access of unauthorized users and to confirm the reliability of the information received.
    The article examines data protection methods designed to protect in-formation circulating in systems
    formed by several interacting agents. The approach under consideration is based on the
    methods of infor-mation protection and error-correcting coding based on the system of residual
    classes. The applied methods of error-correcting coding, based on the system of residual classes,
    are based on the idea of threshold data separation, in which the original information can be restored
    from parts of the original information. This is due to the fact that redundant modular
    arithmetic, or redundant system of residual classes, has unique properties with re-spect to error
    detection and correction. In addition, the system of resid-ual classes has such an advantage as low
    computational complexity of data separation algorithms. To increase the reliability of communication
    between robotic complex-es in multichannel communication systems, the paper proposes a
    meth-od for information protection and noise-resistant coding, based on a multistage threshold
    data separation. As a result of the work, a system of noise-resistant information trans-mission was
    obtained, which provides comprehensive protection for robotic systems.

  • ORGANIZATION OF GOAL-DIRECTED MOVEMENTS OF VEHICLES USING VISUAL LANDMARKS

    S.M. Sokolov, N.D. Beklemishev, А. А. Boguslavsky
    Abstract

    The report considers the solution of the navigation problem with the help of a technical vision
    system that determines the position of the mobile vehicle relative to the landmarks indicated
    in the surrounding space. Navigation by landmarks is the most objective criterion for the location
    of a mobile vehicle in the surrounding space. The method of measuring the parameters of the ratios
    that characterize the location of the mobile vehicle relative to the landmarks is almost independent
    of other navigation measurements. Data input for correcting coordinates and other motion
    parameters can be performed not continuously, but at some discrete, and, in general, quite
    rare moments of time. The general scheme of the solution is considered: from setting up, to receiving
    navigation information. The integration of the obtained data with data from other navigation
    tools is briefly described, and the key problems and parameters of the VS that affect the accuracy
    of the obtained results are analyzed. The key point in this method is the solution of a system of
    equations describing the position of robotic complexes relative to the specified landmarks. This
    system is solved by a modified Gauss-Newton method for a nonlinear redefined system of equations.
    By replacing the left side of each equation with its differential at the point of initial approximation,
    linearization is performed. The values of the unknowns in the redefined system of linear
    equations for which the sum of the squared residuals in the equations is minimal can be obtained
    either by the SVD (singular value decomposition) method or by using the system's symmetrization.
    At the same time, SVD is more resistant to the accumulation of computational error, but it is
    somewhat more demanding on computer resources and more difficult to implement. We used the
    symmetrization solution as a simpler one. The resulting system is solved by the square root
    (Cholesky) method. To detect landmarks in the VS, two types of VS modules are used – panoramic,
    based on a camera with a fish-eye lens, and stereo. The proposed method allows us to solve the
    problem of clarifying the parameters of motion by separate, sparse measurements of the proper
    position and speed relative to landmarks in the surrounding space. Independently and in combination
    with other navigation tools, the described approach provides high-precision determination of
    navigation parameters in various driving conditions. The results of field experiments with the
    model of the proposed system in motion under various conditions are described. The ways of improvement
    and development of the considered approach are discussed.

  • OBJECT DETECTION ALGORITHM FOR OPTOELECTRONIC SYSTEMS WITH ONLINE LEARNING

    V.A. Tupikov, V.A. Pavlova, V.A. Bondarenko, M.V. Sozinova, P.A. Gessen
    Abstract

    In order to create a new algorithm for automatic detection of objects with real-time training, a
    study of the world scientific groundwork in the field of general-purpose automatic tracking with the
    ability to recognize a tracked object with the potential for application in embedded computing systems
    of optoelectronic systems of promising robotic complexes was carried out. Based on the conducted
    research, methods and approaches were selected and tested that allow, with the greatest accuracy,
    while maintaining high computational efficiency, to provide training of classifiers on the fly
    (online learning) without a priori knowledge of the type of tracking object and to ensure the subsequent
    detection of the original object in the event of its short-term loss. Such methods include a histogram
    of oriented gradients – a descriptor of key features based on the analysis of the distribution of
    the brightness gradients of the object image. Its use allows you to reduce the amount of information
    used without losing key data about the object and to increase the speed of image processing. The
    article substantiates the choice of one of the real-time classification algorithms that allows solving
    the problem of binary classification – the support vector machine. Due to the high speed of data processing
    and the need for a small amount of initial training data to construct a separating hyperplane,
    on the basis of which the classification of objects is done, this method is chosen as the most suitable
    for solving the problem. For online training, a modification of the support vector machine method
    was chosen, which implements stochastic gradient descent at each step of the algorithm – Pegasos.
    The authors of the study carried out the development and semi-natural modeling of the selected algorithm,
    evaluated the effectiveness of its work in the tasks of detecting an object of interest in real time
    with preliminary online training in the process of tracking the object. The developed algorithm has
    shown high efficiency in solving the problem and is planned to be implemented as part of a special
    software for optoelectronic systems of advanced robotic systems. In the conclusion, proposals are
    presented to further improve the accuracy and probability of the object detection by the developed
    algorithm, as well as for improving its performance by optimizing calculations.

SECTION V. TECHNICAL VISION

  • PERFORMANCE OF THE ELBRUS-8SV MICROPROCESSOR FOR TECHNICAL VISION TASKS UNDER POWER CONSTRAINTS

    N.A. Bocharov, A.G. Zuev, О. А. Slavin
    Abstract

    Research in the field of creating specialized computing systems for robots is conducted in
    many world scientific centers, including our country. The development of capabilities of sensor
    systems, global navigation systems, growth of computing power and improvement of algorithms
    allow creating onboard computing systems with broad intellectual capabilities. An important, butunsolved problem remains the equipping of such computing systems with domestically produced
    microprocessors. The emergence of domestic computing systems and software of the new generation,
    such as microprocessor "Elbrus-8SV" and OS “Elbrus” opens up new opportunities for developers
    of robotic complexes. The peak performance of "Elbrus-8SV" microprocessor is more
    than 0.25 TFLOPS of double precision, which allows solving computationally complex tasks, such
    as technical vision tasks, on the microprocessor. Another important requirement of onboard computing
    technology, in addition to computational power, is low power consumption. As a rule, on
    general-purpose microprocessors, high performance is impossible with low power consumption,
    and specialized processors, such as vector or neuroprocessors, are used to solve computationally
    complex technical vision tasks. To reduce the power consumption of general-purpose microprocessors,
    there are special methods, among which the authors considered: switching off the physical
    cores, reducing the clock frequency, switching off the pipeline, switching off synchronous pulses
    in the idle state. The authors reviewed typical technical vision tasks solved by onboard computing
    systems. An experiment was conducted to estimate power consumption and execution time of
    vision algorithms when the clock frequency is reduced and the microprocessor cores are switched
    off. The experiments showed the possibility to decrease the power consumption of the Elbrus-8SV
    microprocessor cores by 36-46% with an increase in the program execution time. Based on the
    results of the experiment, conclusions were made about the applicability of the Elbrus-8SV microprocessor
    for creating advanced onboard computing systems with the ability to operate both in
    high performance mode and with reduced power consumption. The results obtained by the authors
    indicate the prospects of import substitution in the field of robotics.

  • PROSPECTS OF MALE-CLASS UAVS USING FOR THE HUGE TERRITORIES AERIAL SURVEY

    А. М. Fedulin, D.M. Driagin
    Abstract

    The aim of the study is to estimate the MALE-class (Medium Altitude Long Endurance) UAV
    (Unmanned Air Vehicles) using possibility to solve the problem of regular aerial survey of huge
    areas relative to other means used for this, such as: small-sized UAVs, satellite remote sensing
    and manned aircrafts. Considered is the issue of practical construction of onboard computer vision
    system based on a UAV “Orion” wit a ta eoff weig t of more t an a ton, w ic pro ides
    aerial photography in the visible and near infrared range and airborne laser scanning of the underlying
    surface with automatic processing of the received data on board in near real-time mode
    detecting the changes occurred since the previous survey. It has been determined the key components
    of the computer vision system both the hardware and software platform required highperformance
    computing and big-data storage. It has been presented a promising architecture,
    given estimates for its search performance, weight and power consumption, determined the typical
    flight altitude, which provides the input data spatial resolution, which is necessary for objectoriented
    change detection algorithms, based on a convolutional neural networks machine learning.
    It has been proposed organizational and technical solutions to speed up the data processing
    cycle, taking into account the requirements of the legislation regarding the declassification of
    aerial survey data. The results obtained confirm that after the issuance of the Orion UAV by the
    Federal Air Transport Agency of the aircraft type certificate, which gives the right to perform
    commercial flights in the shared airspace of the Russian Federation, it will be possible to implement
    an aerial survey complex of high productivity and degree of autonomy using cut of the edge
    CV & ML technologies. It seems the tactical, technical and economic capabilities of which proposed
    will be orders of magnitude superior to the currently existing solutions especially for hardto-
    reach regions.