The use of modern innovative control systems for heat supply in the housing and communal services is the task of today. Within the framework of the program of energy-saving technologies, an automated system for monitoring and controlling the parameters of the coolant in the housing and communal services is proposed. The proposed system is based on industrial controllers with Ethernet 100 Base-T, RS-232 and RS-485 interfaces and software created in the freely distributed version of the Owen CoDeSys package.

Keywords: shut-off valve, shut-off and control valves, CoDeSys, proportional-integral-differentiating controller, pipeline fittings

The system analysis of the main directions of the fourth scientific and technological revolution, called "Industry 4.0" in the field of road transport, is conducted in the article. The essence of the industry 4.0 is the development of the digital economy using cyberphysical systems, the Internet of things and large data. Applicable to road transport can be identified three areas: the creation of an unmanned vehicle, the development of technological support for the movement of trucks in the convoy, the development and implementation of "automobile Internet". At the same time, there are a number of technological, legal and ethical problems that hamper the large-scale development of a new generation of transport.

Keywords: Industry 4.0, unmanned vehicle, Internet of Things, Cyberphysical systems, autonomous transport, cloud technologies

Stable operation of computer equipment is important for its effective use. A significant role in ensuring stability depends on the reliability of the software. The article analyzes the state of the problem to improve the reliability of the software based on the models of reliability assessment. The methods of increasing the software reliability using time and software redundancy are analyzed. It is concluded that there is no universal solution to the problem of software reliability in the presence of many private solutions.

Keywords: software reliability, software reliability evaluation models, classification of software reliability models, methods of software reliability improvement

An approach to real time modeling of automotive FMCW radar performance in autonomous driving applications is proposed. Simplified model of driving situation and model of reflected signal are developed on the basis of commercial automotive radar performance. Complex solution for radar sensing modeling was produced. Modeling results are represented.

Keywords: autonomous car, computer vision system, modeling, automotive radar, scattering centre, Fourier transform, radar image

The processes of extraction and processing of oil and oil products are accompanied by negative consequences at the level of the environment in the form of accidents. They act both on the water area and on land. This article is devoted to the liquidation of emergency oil and oil products spills with the help of natural sorbents. For the analysis, three readily available materials were taken in the national economy of the Russian Federation: wool, wheat straw and sawdust. The main indicative value for the sorbent is its oil capacity (sorption capacity) the amount of absorbed oil, which depends on the degree of specific surface of the material. The higher the specific surface area, the higher the sorption capacity. To determine the oil capacity, each of the materials was placed on a flat surface and artificially contaminated with oil for one hour. During the experiment, the absorbent capacity of the sorbents was determined, which for each proved to be different. Based on the data, graphs are constructed that clearly show the applicability of a material.

Keywords: Oil, oil products, extraction, oil consumption, material, sorbent, absorption, adsorption, accident, liquidation

In article the UAV three-dimensional mathematical model on the basis of the quadcopter as most the UAV widespread type at the moment is developed. The quadcopter is based on a frame of DJI F-450. The first part of article is devoted to the mathematical description of the quadrotor model, namely: to a kinematics and dynamics models; to forces and torques operating on the UAV; to rotation matrixes; to the assumptions simplifying mathematical expressions. For the description of location and movement of the quadrotor in space also the bound will be used inertial reference frame. Therefore transformation from one frame to another is necessary. The simulation of the operation of the motors 1-4, which are electric drives of direct current, has been performed. Rotation of engines is transferred to screws directly. Movement of the quadcopter in the bound frame is considered in the article by the accounting of the models of a kinematics and dynamics describing the vehicle movement.

Keywords: quadrotor, UAV, kinematics, dynamics, 3D environment, DJI F-450, engine, traction, rotation matrix, vehicle

The analysis of research on the separation of rice seeds on new types of polymeric sieves showed the absence of regularities that provide the studied processes. There are no dependencies describing the effect of the kinematic parameters of the operation of the sieves on the intensity of the separation processes of rice seeds. We performed a system analysis of the sieves with different types of holes. In the work, mathematical dependences between the amplitude and frequency of oscillations are determined for swinging polymer sieves.

Keywords: Rice seeds, polymer sieves, separation process, grating mill, kinematic parameters, mathematical dependencies

The relevance of modeling, design of digital devices and further synthesis of it on FPGA are substantiated in this article. This approach is demonstrated by example of microprocessor with famous architecture MIPS on the VHDL language. The further modeling, synthesis on FPGA by Altera and test on the specific example confirm the opportunity of prototyping real digital devices with the introduсed method.

Keywords: microprocessor, test, programmable logic integrated circuit, digital device, verification, model, hardware description language, field-programmable gate array,pipeline ,MIPS

To produce controlled radio frequency and microwave devices such as phased antenna arrays, delay lines, an affordable and inexpensive way of manufacturing varactors in large quantities should be found. One of the promising ways to produce such varactors is based on the use of a BST-paste with a low firing temperature, which allows it to be integrated into a substrate of low-temperature co-fired ceramics (LTCC).

Keywords: semiconductor, ferroelectric, BST-paste, ferroelectric condenser, LTCC technology

This article raises the problem of energy conservation of limited resources, provides an analysis of the most popular energy-efficient measures, presents examples of energy-efficient equipment, and discusses the problem of implementing energy-efficient solutions in the repair and construction industry in the Russian Federation at the present time.

Keywords: Energy saving, energy efficiency, energy resources, energy-efficient measures, energy-efficient technologies, energy-efficient

The parameters of the porous structure and the active surface of cobalt catalysts for the synthesis of liquid and solid hydrocarbons (Fischer-Tropsch synthesis) prepared by the method of impregnating a silicate carrier were studied. The effect of additives of oxide promoters on the specific surface, the volume and size of pores, the dispersion and size of crystallites of metallic cobalt on the surface of the Co / SiO2 catalyst was studied.

Keywords: Fischer-Tropsch synthesis, motor fuel, synthetic hydrocarbons, catalyst, promoter, carrier, specific surface, porous structure, catalytic activity, selectivity

In this paper the method of electrochemical oxidation/dispersion of zinc using pulse alternating current with average density of 0.2:1.2 A/cm2 was used. The mixture of ZnO and Zn5(OH)8Cl2·H2O (simonkolleite) was obtained. The application of this product as a photocatalyst provides a practically full removal of methylene blue dye under UV light. When the sample is calcined at 400 °С the decomposition of simonkolleite with a ZnO formation occurs. It is accompanied by decrease in surface area and photocatalytic activity of the material.

Keywords: zinc oxide, nanoparticle, simonkolleite, pulse alternating current, morphology, photocatalysis, methylene blue

The article presents a comprehensive analysis of emission indicators from stationary sources and emissions from motor vehicles in the Rostov region and the city of Rostov-on-Don, as well as a comparative analysis for the two regions of the Southern Federal District. The forecast of the ecological situation is made and the adequacy of the proposed mathematical model is checked.

Keywords: emissions of pollutants, toxicity, exhaust gases, stationary sources, auto transport, internal combustion engine

Article is devoted questions of road design taking into account its visual smoothness. In article questions of influence of visual smoothness on the providing by it of velocity of movement of vehicles are considered. In article the developed practice of roads design is analyzed. The given practice, in a due measure, does not consider requirements of landscape designing. Which, in turn, though are registered in the arch of rules, but have recommendatory character. Also in article questions of use of the minimum parameters of highways are mentioned at its designing. The necessary increase in the minimum parametres of norms of designing for maintenance of movement of vehicles with settlement speeds is recommended. The special attention in article is given transitive curves as their use at observance of principles of coordination of elements of the plan and a longitudinal profile provides visual smoothness and clearness of a line of a highway. It in turn raises traffic safety on these lines. The considerable attention is given the analysis of technical and psychological safety, as to the reasons of emergencies on roads. In article raising factors of values of radiuses for achievement of psychological comfort by the driver are offered at passage of curves to the plan.

Keywords: Road line, longitudinal profile, visual smoothness, landscape designing, radius of a horizontal curve, spiral curve, safety of traffic

The article is devoted to the task of searching for the design solution of the structural coating plate. Structural plates are widely used to cover single-storey structures and have a wide variety of structural and architectural forms. The choice of minimum weight design is based on the VAT control method. As the regulators adopted the location of the columns and the class of steel. Depending on the number and location of the columns on which the structural plate rests, the forces in the structural elements change and accordingly the cross-sectional area and mass of the structure change. Four variants of the arrangement of the columns and three versions of the class of steel were considered. For each design variant, the design was calculated numerically, the cross-section was selected, and the mass was determined. Based on the accepted criterion of the effectiveness of the design solution - metal consumption, the most effective design solution was adopted with the arrangement of columns along the perimeter of the coating in steps of one cell.

Keywords: space grid structures for roofs, regulation of stresses, optimization, metal consumption, criterion of optimality