SOFTWARE FOR CONTROL SYSTEMS FOR «SMART» RESIDENTIAL BUILDING

2021 ◽  
Vol 14 (1) ◽  
pp. 58-67
Author(s):  
Sergey Polyakov ◽  
V. Akimov ◽  
A. Polukazakov ◽  
Vladimir Zolnikov ◽  
P. Enin
Keyword(s):  
Structural Changes ◽  
Life Support ◽  
Assembly Language ◽  
Experimental Studies ◽  
Residential Building ◽  
Heating System ◽  
Liquid Level ◽  
Virtual Object ◽  
Level Control ◽  
The Relationship

The article deals with the issues of modeling and management of life support systems of a residential building. The resulting model of the liquid level in the tank allows you to establish the relationship between the level and the flow rate of the liquid. The results of the selection and justification of the fluid level control structure are presented. An algorithm that implements the operation of a virtual object is given. The structure of the automatic control system (ACS) of the liquid level is technically implemented in an open type. The results confirming the achievability of the proposed structural changes are obtained. The results of experimental studies are presented. The choice and justification of the method of controlling the heating system and the liquid level in the tank are considered. Programs for managing subsystems of a residential building in Assembly language, C++, and ladder diagrams are presented. A model for controlling the liquid level in a Multisim environment is proposed.

SIMULATION OF THE HEATING CONTROL SYSTEM OF A SMART APARTMENT BUILDING

2020 ◽  
Vol 13 (1) ◽  
pp. 68-76
Author(s):  
Sergey Polyakov ◽  
V. Akimov ◽  
A. Polukazakov
Keyword(s):  
Control System ◽  
Structural Changes ◽  
Life Support ◽  
Experimental Studies ◽  
Residential Building ◽  
Control Program ◽  
Heating System ◽  
Virtual Object ◽  
Modeling And Control ◽  
Automation Systems

The article considers the issues of modeling and control of heating systems in a residential building. The results of analysis, selection of control system parameters are presented. An algorithm is presented that implements the operation of a virtual object. The modeling of typical life support structures in the CX-Programmer environment was carried out. A virtual object control program has been developed in the language of ladder diagrams (relay-contact circuits). The principle of autonomy of managing residential infrastructure facilities in the light of the requirements of “Smart City” is proposed. A heating system stand has been created to test the proposed automation systems. The description of the hydraulic, electrical and software parts of the stand. To control the operation of the stand, a controller is proposed, implemented on the Arduino platform. The results confirming the attainability of the proposed structural changes. The results of experimental studies are presented. The presence of cross-links in the regulatory object and their influence on each other are considered.

Cascade control of «smart home» heating

2022 ◽  
Vol 14 (4) ◽  
pp. 82-89
Author(s):  
Sergey Polyakov ◽  
V. Akimov ◽  
A. Polukazakov
Keyword(s):  
Structural Changes ◽  
Experimental Studies ◽  
Residential Building ◽  
Heating System ◽  
Cascade Control ◽  
Virtual Object ◽  
Coolant Temperature ◽  
Home Heating ◽  
Input Signals ◽  
Selection Of

The article discusses the issues of implementing the conversion of input signals of «smart» sensors for automation of the heating system, an algorithm for calculating the parameters of measuring circuits with a nonlinear element and an operational amplifier is developed. The issues of modeling cascade control of residential building heating systems are investigated. The results of the analysis and selection of parameters of the cascade control system are presented. An algorithm implementing the operation of a virtual object is given. The structures of management of residential building objects are proposed. The method of calculating the adjustment of the controller for cascade control is given. For the heating system stand, the procedure for setting the parameters of the process of PID control of the coolant temperature is considered. The results confirming the achievability of the proposed structural changes are obtained. The results of experimental studies are presented.

scholarly journals CASCADE CONTROL OF THE HEATING SYSTEM «SMART HOME»

2021 ◽  
Author(s):  
Sergey Polyakov
Keyword(s):  
Temperature Control ◽  
Smart Home ◽  
Structural Changes ◽  
Experimental Studies ◽  
Residential Building ◽  
Heating System ◽  
Cascade Control ◽  
Heating Systems

The article deals with the issues of modeling and management of residential building heating systems. The choice and justification of the method of controlling the heating system with cascade temperature control is considered. The results confirming the achievability of the proposed structural changes are obtained. The results of experimental studies are presented.

scholarly journals Two-tier integral indicator system for controlling the material flow heat-power engineering objects.

2018 ◽  
Vol 2 (4) ◽  
pp. 80-87
Author(s):  
Petrо Kulikov ◽  
Alla Bielova ◽  
Nataliia Zhuravska
Keyword(s):  
Control System ◽  
Heating System ◽  
Indicator System ◽  
Heat Energy ◽  
Building Industry ◽  
Material Flows ◽  
Level Control ◽  
Heating Systems ◽  
Scientific Principles ◽  
The Relationship

The essence and the possibility of creation and application of a compliant two-level integrated indicator control on the technology of non-reagent water preparation in the heating systems of heat energy objects of the building industry is substantiated. Proposed scientific principles concerning development of indicator control system. It is established that quantitative characterization of components of material flows of heat systems as a measure of their additive functions and response to changes in catalytic activity is determined by their subordinated indicator control mechanism. Two-level control involves: 1) the relationship between the device for receiving magnetized water (parameters) and the heating system (specific indicators and their indices); 2) the relationship between the specific indicators characterizing the state of material flows of the heating systems and the trends of changes in material flows under the conditions of the action of electromagnetic fields on them - the hydrochemical, electrophysical and thermophysical potentials. Indicator control system provides engineering-ecological aspects of non-reagent water preparation of systems of heat energy objects of the building industry.

scholarly journals DEVELOPMENT OF A HEATING CONTROL SYSTEM «SMART RESIDENTIAL BUILDING»

2021 ◽  
Author(s):  
Sergey Polyakov
Keyword(s):  
Control System ◽  
Smart City ◽  
Structural Changes ◽  
Residential Building ◽  
Heating System ◽  
Heating Systems ◽  
System Parameters ◽  
Selection Of

The article deals with the issues of modeling and management of residential building heating systems. The results of the analysis and selection of control system parameters are presented. A vir-tual object of the heating system of the residential building infrastructure is proposed in the light of the requirements of the «Smart City». The results confirming the achievability of the proposed structural changes are obtained.

Simulation of a heating automation system for a «smart» residential building

2021 ◽  
Vol 14 (2) ◽  
pp. 35-44
Author(s):  
Sergey Polyakov
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Experimental Studies ◽  
Residential Building ◽  
Heating System ◽  
Structural Modeling ◽  
Temperature Control System ◽  
Automation System ◽  
Technical Structure ◽  
Dynamic Errors

The article deals with the issues of constructive, structural modeling and automatic control of room heating. The dynamics of the object-the heating system of a residential building-is obtained. Dynamic errors are determined by the dynamic characteristics of the temperature sensor. The design scheme of the object is presented. The heating control system contains three temperature controllers. Using structural modeling, various methods of automatic control of the heating system are evaluated. The technical structure of the automatic temperature control system (ACS) in a residential building is implemented by a cascade three-circuit control with two executive elements. Experimental studies of transients in a closed ACS with three types of regulators are presented. The results obtained make it possible to implement adaptive control of the heating system on a real object.

Analysis of the results of medium-energy electrons on the protective and thermoregulatory coatings of high-orbit satellites

2018 ◽  
pp. 156-171
Author(s):  
A. M. Shamayev ◽  
M. D. Ozersky
Keyword(s):  
Structural Changes ◽  
Protective Coatings ◽  
Experimental Studies ◽  
Thermal Control ◽  
Space Vehicles ◽  
Medium Energy ◽  
Electrostatic Discharges ◽  
High Orbit ◽  
Thermal Control Coatings ◽  
Solar Batteries

The results of experimental studies of the effect of electron irradiation on K-208 and CMG glasses used for manufacturing protective coatings of solar batteries and thermal control coatings of space vehicles are analyzed. It is shown that the caused electrostatic discharges lead to structural changes in the surfaces of the glasses studied. The goals of further studies of the influence of proton and electronproton effects on the properties of such coatings are outlined. 

Potential Role of Inflammation in Associations between Particulate Matter and Heart Failure

2018 ◽  
Vol 24 (3) ◽  
pp. 341-358 ◽  
Author(s):  
Xiaotong Ji ◽  
Yingying Zhang ◽  
Guangke Li ◽  
Nan Sang
Keyword(s):  
Heart Failure ◽  
Particulate Matter ◽  
Inflammatory Response ◽  
Heart Diseases ◽  
Experimental Studies ◽  
Epidemiological Studies ◽  
Inflammatory Mechanism ◽  
High Concentrations ◽  
Future Work ◽  
The Relationship

Recently, numerous studies have found that particulate matter (PM) exposure is correlated with increased hospitalization and mortality from heart failure (HF). In addition to problems with circulation, HF patients often display high expression of cytokines in the failing heart. Thus, as a recurring heart problem, HF is thought to be a disorder characterized in part by the inflammatory response. In this review, we intend to discuss the relationship between PM exposure and HF that is based on inflammatory mechanism and to provide a comprehensive, updated evaluation of the related studies. Epidemiological studies on PM-induced heart diseases are focused on high concentrations of PM, high pollutant load exposure in winter, or susceptible groups with heart diseases, etc. Furthermore, it appears that the relationship between fine or ultrafine PM and HF is stronger than that between HF and coarse PM. However, fewer studies paid attention to PM components. As for experimental studies, it is worth noting that coarse PM may indirectly promote the inflammatory response in the heart through systematic circulation of cytokines produced primarily in the lungs, while ultrafine PM and its components can enter circulation and further induce inflammation directly in the heart. In terms of PM exposure and enhanced inflammation during the pathogenesis of HF, this article reviews the following mechanisms: hemodynamics, oxidative stress, Toll-like receptors (TLRs) and epigenetic regulation. However, many problems are still unsolved, and future work will be needed to clarify the complex biologic mechanisms and to identify the specific components of PM responsible for adverse effects on heart health.

scholarly journals Experimental studies on the transformation from firn to ice in the wet-snow zone of temperate glaciers

1997 ◽  
Vol 24 ◽  
pp. 181-185 ◽  
Author(s):  
Katsuhisa Kawashima ◽  
Tomomi Yamada
Keyword(s):  
Experimental Studies ◽  
Ice Formation ◽  
Compression Tests ◽  
Densification Rate ◽  
Overburden Pressure ◽  
Proportionality Constant ◽  
Wet Snow ◽  
Water Saturated ◽  
The Relationship ◽  
Good Agreement

The densification of water-saturated firn, which had formed just above the firn-ice transition in the wet-snow zone of temperate glaciers, was investigated by compression tests under pressures ranging from 0.036 to 0.173 MPa, with special reference to the relationship between densification rate, time and pressure. At each test, the logarithm of the densification rate was proportional to the logarithm of the time, and its proportionality constant increased exponentially with increasing pressure. The time necessary for ice formation in the firn aquifer was calculated using the empirical formula obtained from the tests. Consequently, the necessary time decreased exponentially as the pressure increased, which shows that the transformation from firn in ice can be completed within the period when the firn aquifer exists, if the overburden pressure acting on the water-saturated firn is above 0.12–0.14 MPa. This critical value of pressure was in good agreement with the overburden pressure obtained from depth–density curves of temperate glaciers. It was concluded that the depth of firn–ice transition was self-balanced by the overburden pressure to result in the concentration between 20 and 30 m.

scholarly journals Application of intelligent orienteering based on Internet of things

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Donghui Zhang ◽  
Ruijie Liu
Keyword(s):  
Internet Of Things ◽  
Network Architecture ◽  
Emergency Services ◽  
Simulation Experiment ◽  
Experimental Studies ◽  
Signal Stability ◽  
Anchor Nodes ◽  
Set Up ◽  
The Relationship ◽  
The Internet Of Things

Abstract Orienteering has gradually changed from a professional sport to a civilian sport. Especially in recent years, orienteering has been widely popularized. Many colleges and universities in China have also set up this course. With the improvement of people’s living conditions, orienteering has really become a leisure sport in modern people’s life. The reduced difficulty of sports enables more people to participate, but it also exposes a series of problems. As the existing positioning technology is relatively backward, the progress in personnel tracking, emergency services, and other aspects is slow. To solve these problems, a new intelligent orienteering application system is developed based on the Internet of things. ZigBee network architecture is adopted in the system. ZigBee is the mainstream scheme in the current wireless sensor network technology, which has many advantages such as convenient carrying, low power consumption, and signal stability. Due to the complex communication environment in mobile signal, the collected information is processed by signal amplification and signal anti-interference technology. By adding anti-interference devices, video isolators and other devices, the signal is guaranteed to the maximum extent. In order to verify the actual effect of this system, through a number of experimental studies including the relationship between error and traffic radius and the relationship between coverage and the number of anchor nodes, the data shows that the scheme studied in this paper has a greater improvement in comprehensive performance than the traditional scheme, significantly improving the accuracy and coverage. Especially the coverage is close to 100% in the simulation experiment. This research has achieved good results and can be widely used in orienteering training and competition.

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