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Tytuł:
A COLREGs-compliant decision support tool to prevent collisions at sea
Autorzy:
Martelli, M.
Žuškin, S.
Zaccone, R.
Rudan, I.
Powiązania:
https://bibliotekanauki.pl/articles/24201449.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
analysis of ship collision
collision avoidance
collision avoidance decision making
collision avoidance system
anti-collision maneuvering
autonomous control unit
autonomous ship
autonomous navigation system
Opis:
Groundings and collisions still represent the highest percentage of marine accidents despite the current attention on Maritime Education and Training and the improvement of sensor capability. Most of the time, a collision is caused by a human error with consequences ranging from moderate to severe, with a substantial impact on both environment and life safeguarded at sea. In this paper, a brief statistical data regarding human element as a root cause of marine incidents together with collision regulations misunderstanding is presented as a background chapter. Furthermore, the present work discusses a decision support system architecture to suggest an appropriate action when the risk of a potential collision is detected. The proposed architecture system is based on various modules integrated with proper sensor input data regarding the surrounding navigation area. As a result, the tool can support the Officers of Watch in the decision-making process providing an early suggestion in compliance with the COLlision REGulations. The proposed system is intended to be used onboard independently from the degree of automation of the ship, and it is based on AIS, which is mandatory, making it widely applicable. The proper use of the system can considerably reduce the number of collisions, as demonstrated by the obtained results.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 2; 347--353
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A neural network for monitoring and characterization of buildings
Autorzy:
Romańska-Zapała, Anna
Dudzik, Marek
Kuc, Sabina
Powiązania:
https://bibliotekanauki.pl/articles/27323684.pdf
Data publikacji:
2023
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
estimator design procedure
estimation
intelligent construction
intelligent building
control system
procedura projektowania estymatorów
oszacowanie
system sterowania
konstrukcja inteligentna
budynek inteligentny
Opis:
This paper continues work from part 1 where a high precision estimator for energy efficiency and indoor environment based on artificial neural networks (ANN) was examined. Part 1 demonstrated that creating a precise representation of a mathematical relationship one must evaluate the stability and fitness under randomly changing initial conditions. Now, we extend our requirements for the model to be rapid and precise. At the end of this work we obtain a road map for the design and evaluation of ANN-based estimators of the given performance aspect in a complex interacting environment. This paper also shows that ANN system designed may have a high precision in characterizing the response of the building exposed to variable outdoor climatic conditions. The absolute value of the relative errors, MaxAR, is less than 2%. It proves that monitoring and ANN-based characterization approach can be used for different buildings, including those with the best environmental performance.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2023, 4; 134--143
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new automatic intelligence-based solar load control system
Nowy,automatyczny system kontroli obciążenia słonecznegooparty na sztucznej inteligencji
Autorzy:
Rao, Kudithi Nageswara
Ganesamoorthy, Rajkumar
Powiązania:
https://bibliotekanauki.pl/articles/27315446.pdf
Data publikacji:
2023
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
load control system
solar PV
system kontroli obciążenia
panel słoneczny
Opis:
In modern times, solar panels have become a common sight in many households as they provide electricity for various purposes. Typically, the solar panel's charges a battery, and any excess energy generated is usually wasted once the battery is fully charged. However, by utilizing this extra energy, heavy loads can be powered as well. This is where a solar power controller comes into play, which measures the parameters of the solar cell through multiple sensor and adjusts the load accordingly. When the power output of the PV cell is high, the load runs on solar power, and if the power is not sufficient, the load switches to the main supply. The load switches back to solar power when it becomes high again. Monitoring the solar cell parameters allows for real-time identification of the power produced by the solar panel.
W dzisiejszych czasach panele słoneczne stały się powszechnym widokiem w wielu gospodarstwach domowych, ponieważ zapewniają energię elektryczną do różnych celów. Zazwyczaj panele słoneczne ładują akumulator, a nadmiar wytworzonej energii jest zwykle marnowany po pełnym naładowaniu akumulatora. Jednakże, wykorzystując tę dodatkową energię, można również zasilać duże obciążenia. W tym miejscu do gry wkracza kontroler energii słonecznej, który mierzy parametry ogniwa słonecznego za pomocą wielu czujników i odpowiednio dostosowuje obciążenie. Gdy moc wyjściowa ogniwa fotowoltaicznego jest wysoka, obciążenie jest zasilane energią słoneczną, a jeśli moc nie jest wystarczająca, obciążenie przełącza się na główne źródło zasilania. Obciążenie przełącza się z powrotem na zasilanie energią słoneczną, gdy jej moc ponownie staje się wysoka. Monitorowanie parametrów ogniwa fotowoltaicznego pozwala na identyfikację mocy wytwarzanej przez panel fotowoltaiczny w czasie rzeczywistym.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2023, 13, 3; 86--89
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Robust Control Strategy for Microgrid Energy Using Fuzzy Logic
Autorzy:
Meliani, Meryem
El Barkany, Abdellah
El Abbassi, Ikram
Absi, Rafik
Jeffali, Faouaz
Powiązania:
https://bibliotekanauki.pl/articles/2201185.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy control
renewable energy sources
fuzzy logic system
microgrid
storage system
smart grid
Opis:
This paper highlights the storage charging and discharging issue. The study objective is to manage the energy inputs and outputs of the principal grid at the same time in order to maximize profit while decreasing costs, as well as to ensure the availability of energy according to demand and the decisions to either save or search for energy. A fuzzy logic control model is applied in MATLAB Simulink to deal with the system’s uncertainties in scheduling the storage battery technology and the charging- discharging. The results proved that the fuzzy logic model has the potential to efficiently lower fluctuations and prolong the lifecycle.
Źródło:
Management and Production Engineering Review; 2023, 14, 1; 127--136
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of landslide body control of black bovine cave copper ore mining and beneficiation project
Autorzy:
Wu, Hanhui
Powiązania:
https://bibliotekanauki.pl/articles/27312086.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
jaskinia
ruda miedzi
korpus osuwiska
analiza stabilności
system kontroli
cave
copper ore
landslide body
stability analysis
control scheme
Opis:
Landslide is a common geological disaster which causes huge losses to people’s properties and national economic development. How to prevent and control landslides has become an important issue. This article introduces the geological and geographical environment of the landslide body, analyzes the basic characteristics of the landslide, calculates the landslide stability based on the ultimate equilibrium theory-based transfer coefficient method, discusses the development trend of the landslide and comes up with corresponding control schemes by taking the landslide body of Black Bovine Cave Copper Ore Mining & Beneficiation Project as example. It is found that the control scheme - “anti-slide pile + retraining wall + baffle + anchor cable” can be used to effectively prevent and control the geological disaster according to calculation. The study results can provide a reference for landslide body control.
Źródło:
Archives of Civil Engineering; 2023, 69, 2; 291--309
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive Automatic System of Controlling Acceleration Characteristics of Electromechanical Converters with an Observing Identification Tool
Autorzy:
Kalabayeva, Aidana
Wójcik, Waldemar
Kashaganova, Gulzhan
Togzhanova, Kulzhan
Sarybayeva, Zhaksygu
Powiązania:
https://bibliotekanauki.pl/articles/27311924.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
electromechanical converters
adaptive system
control systems
identification
Opis:
The operating modes of the automatic control system for electromechanical converters for synchronization of rotor speeds have been developed and investigated. The proposed automatic speed control system allows adjusting the slave engine to the master one in a wide range from 0 to 6000 rpm. To improve the synchronization accuracy an adaptive algorithm is proposed that allows to increase the synchronization accuracy by 3-4 times. The proposed model of an adaptive automatic control system with an observing identification tool makes it possible to minimize the error in the asynchrony of the rotation of the rotors of two electromechanical converters.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 3; 615--620
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agents and Multi-agent Systems in the Management of Electric Energy Systems
Autorzy:
Bitimanova, Saltanat
Shukirova, Aliya
Powiązania:
https://bibliotekanauki.pl/articles/24200526.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
communication protocol
electricity consumption
control system
planning
system modeling
Opis:
Electric energy systems need constant modernization and updating to solve such problems as distributed management, self-sealing, improving the quality of electricity, demand management, and integration of renewable energy systems. Currently, energy systems need advanced and intelligent technologies to perform various system-level tasks. The purpose of this research is to analyze the existing control systems of electric energy systems, as well as to consider the possibility of using multi-agent systems to control electric energy systems. To achieve the aim of the research, the following scientific approaches were implemented: method of direct research, experimental method, questioning, comparative method, analysis method, and method of observation. The primary value of the research is in the novelty of the work and the fact, that functional components in multi-agent systems act as independent agents, which can interact with each other through a message communication system. This provides a simple connection between the components, which can benefit complex systems designed for an intelligent network. The intelligent network provides an efficient energy management system, and the modernization of the existing power system using a multi-agent system provides solutions to many problems. The best implementation of a multi-agent system can be achieved through the employment of fast and protected communication protocols. The authors of the research have conducted research and presented key statistical data on electricity usage in Kazakhstan over the past few years. The practical significance of the research is determined by the applied results, and their scientific significance, which is conditioned upon the use of deep, modern mathematical results and the development of an optimal control system. This research is a part of a universal model and optimal system of emergency quick response, conducting a quick preliminary prognosis as well as ensuring more lasting planning in electricity consumption.
Źródło:
Management and Production Engineering Review; 2023, 14, 2; 99--110
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aircraft Bleed Air System Fault Prediction based on Encoder-Decoder with Attention Mechanism
Autorzy:
Su, Siyu
Sun, Youchao
Peng, Chong
Wang, Yifan
Powiązania:
https://bibliotekanauki.pl/articles/27312776.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
bleed air system
fault prediction
attention mechanism
deep learning
EWMA control chart
Opis:
The engine bleed air system (BAS) is one of the important systems for civil aircraft, and fault prediction of BAS is necessary to improve aircraft safety and the operator's profit. A dual-stage two-phase attention-based encoder-decoder (DSTP-ED) prediction model is proposed for BAS normal state estimation. Unlike traditional ED networks, the DSTP-ED combines spatial and temporal attention to better capture the spatiotemporal relationships to achieve higher prediction accuracy. Five data-driven algorithms, autoregressive integrated moving average (ARIMA), support vector regression (SVR), long short-term memory (LSTM), ED, and DSTP-ED, are applied to build prediction models for BAS. The comparison experiments show that the DSTP-ED model outperforms the other four data-driven models. An exponentially weighted moving average (EWMA) control chart is used as the evaluation criterion for the BAS failure warning. An empirical study based on Quick Access Recorder (QAR) data from Airbus A320 series aircraft demonstrates that the proposed method can effectively predict failures.
Źródło:
Eksploatacja i Niezawodność; 2023, 25, 3; art. no. 167792
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bifurcation analysis, circuit design and sliding mode control of a new multistable chaotic population model with one prey and two predators
Autorzy:
Vaidyanathan, Sundarapandian
Benkouider, Khaled
Sambas, Aceng
Darwin, P.
Powiązania:
https://bibliotekanauki.pl/articles/27312005.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
population biology system
chaos
chaotic systems
synchronization
sliding mode control
Multisim
circuit simulation
Opis:
In this work, we report a new chaotic population biology system with one prey and two predators. Our new chaotic population model is derived by introducing two nonlinear interaction terms between the prey and predator-2 to the Samardzija-Greller population biology system (1988). We show that the new chaotic population biology system has a greater value of Maximal Lyapunov Exponent (MLE) than the Maximal Lyapunov Exponent (MLE) of the Samardzija-Greller population biology system (1988). We carry out a detailed bifurcation analysis of the new chaotic population biology system with one prey and two predators. We also show that the new chaotic population biology model exhibits multistability with coexisting chaotic attractors. Next, we use the integral sliding mode control (ISMC) for the complete synchronization of the new chaotic population biology system with itself, taken as the master and slave chaotic population biology systems. Finally, for practical use of the new chaotic population biology system, we design an electronic circuit design using Multisim (Version 14.0).
Źródło:
Archives of Control Sciences; 2023, 33, 1; 127--153
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Common errors in machine safety-related control systems and methods of their elimination
Często występujące błędy w układach sterowania związanych z bezpieczeństwem maszyn oraz metody ich eliminacji
Autorzy:
Kasprzyczak, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/38933511.pdf
Data publikacji:
2023
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
safety control system
machine safety
safety requirements
machinery directive
improvement of safety
system kontroli bezepieczeństwa
bezpieczeństwo maszyn
wymagania bezpieczeństwa
dyrektywa maszynowa
poprawa bezpieczeństwa
Opis:
The article focuses on the description of non-conformities occurring in safety-related control systems of machines collected by the author during safety audits of machines and production lines. The aim of the article is to familiarise machine designers with safety requirements and ways of eliminating common mistakes made during design, while at the same time indicating to investors buying machines which requirements to take into account when placing an order.
W artykule skupiono się na opisie niezgodności występujących w związanych z bezpieczeństwem systemach sterowania maszyn zebranych przez autora podczas audytów bezpieczeństwa maszyn i linii produkcyjnych. Celem artykułu jest zapoznanie projektantów maszyn z wymaganiami bezpieczeństwa i sposobami eliminowania często popełnianych błędów podczas projektowania, a jednocześnie wskazanie inwestorom kupującym maszyny, jakie wymagania należy wziąć pod uwagę przy składaniu zamówienia.
Źródło:
Journal of KONBiN; 2023, 53, 3; 141-151
1895-8281
2083-4608
Pojawia się w:
Journal of KONBiN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of Joint Functioning of Access Control Systems
Autorzy:
Strelbitskyi, Mykhailo
Mazur, Valentyn
Prokopenko, Evgenii
Rachok, Roman
Mul, Dmytro
Powiązania:
https://bibliotekanauki.pl/articles/2200963.pdf
Data publikacji:
2023
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
access control model
concept
information system
telecommunication system
modernization
Opis:
Modern integrated information and telecommunication systems are upgraded on a continuous basis. Such systems contain both new and old components. The approaches to developing individual components of access control systems are different in the majority of cases. As a rule, modernization of outdated but efficient systems that have been operating without any failures for long periods of time is economically unfeasible. Such an approach requires that different subsystems function based on shared data. This necessitates the coordination of various access control systems in order to ensure proper information security levels. This article examines how joint functioning of various versions of access control systems deployed in IT and telecommunication spheres may be achieved at the stage of their modernization. Potential ways in which information flows may bypass the security policies of one of the access control systems concerned are determined. The authors discuss traditional access control models. For role-based and thematic access control models, specific hypotheses are formulated to comply with security policies when different versions of access control systems work together. The structure of the model assuming that different versions of access control systems operate jointly has been developed. Based on the model, the necessary and sufficient conditions are determined under which unauthorized information flows are prevented. The security theorem for the joint functioning of different versions of access control systems is presented and proved. The results of the study showed that the methodological basis for coordinating access control models applicable to information and telecommunication systems undergoing modernization consists in observing, separately, the equality of information flows between shared objects in each of the versions of the access control systems. The approaches developed in this article can be extended to combined access control systems.
Źródło:
Journal of Telecommunications and Information Technology; 2023, 1; 30--36
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Control and optimization of abstract continuous time evolution inclusions
Autorzy:
Mokhtar-Kharroubi, Hocine
Powiązania:
https://bibliotekanauki.pl/articles/31342761.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
evolution inclusion
well-posedness
optimal control
strong duality
system of optimality
Fenchel duality
convex process of evolution
integrodifferential inclusions
Opis:
Abstract controlled evolution inclusions are revisited in the Banach spaces setting. The existence of solution is established for each selected control. Then, the input–output (or, control-states) multimap is examined and the Lipschitz continuous well posedness is derived. The optimal control of such inclusions handled in terms of a Bolza problem is investigated by means of the so-called PF format of optimization. A strong duality is provided, the existence of an optimal pair is given and the system of optimalty is derived. A Fenchel duality is built and applied to optimal control of convex process of evolution. Finally, it will be shown how the general theory we provided can be applied to a wide class of controled integrodifferental inclusions.
Źródło:
Control and Cybernetics; 2023, 52, 1; 5-34
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of robust multi-loop PI controller for improved disturbance rejection with constraint on minimum singular value
Autorzy:
Arun, Pathiran
Muniraj, Rathinam
Boselin Prabhu, S.R.
Jarin, T.
Willjuice Iruthayarajan, M.
Powiązania:
https://bibliotekanauki.pl/articles/27324013.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
multi-loop PI controller
multivariable system
decentralized control
disturbance rejection
robust stability
Opis:
Disturbance rejection performance optimization with constraints on robustness for a multivariable process is commonly encountered in industrial control applications. This paper presents the tuning of a multi-loop Proportional Integral (PI) controller method to enhance the performance of load disturbance rejection using evolutionary optimization. The proposed design methodology is formulated to minimize the load disturbance rejection response and the input control energy under the constraints of robust stability. The minimum singular value of multiplicative uncertainty is considered a multi-loop system robust stability indicator. Optimization is performed to achieve the same, or higher level than the most-explored Direct Synthesis (DS) based multi-loop PI controller, which is derived from a conventional criterion. Simulation analysis clearly proved that the proposed multi-loop PI controller tuning method gives better disturbance rejection, and either, the same or a higher level of robust stability when compared to the DS-based multi-loop PI controller.
Źródło:
Archives of Control Sciences; 2023, 33, 4; 839--859
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of control system of mobile robot with differential drive
Autorzy:
Božek, Pavol
Pivarčiová, Elena
Powiązania:
https://bibliotekanauki.pl/articles/27323751.pdf
Data publikacji:
2023
Wydawca:
STE GROUP
Tematy:
mobile robot
automation
control system
simulation
robot mobilny
automatyzacja
system sterowania
symulacja
Opis:
Currently, the topic of automation of logistic processes in warehouses is relevant. The article considers a control system of high level for a mobile robot with a differential drive with a maximum payload of 200 kg with motion simulation in the Matlab Simulink software product. Optimal control of drives based on brushless DC motors at the lower level has been developed. The transient time of low level control system is 1.067 seconds. The mobile robot control system in the minimum version consists of ten ultrasonic distance sensors located along the perimeter of the mobile robot body and of eight contrast band sensors.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2023, 12, 2; 50--56
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of the power supply and control system for the hemodialysis machine
Rozwój układu zasilania i sterowania urządzenia do hemodializy
Autorzy:
Yaskiv, Volodymyr
Yaskiv, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27315436.pdf
Data publikacji:
2023
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
hemodialysis
power supply and control system
rectangular hysteresis loop
high-frequency magnetic amplifier
hemodializa
układ zasilania i sterowania
prostokątna pętla histerezy
wzmacniacz magnetyczny wysokiej częstotliwości
Opis:
The article describes new approaches to creating an autonomous compact system with automatic control for hemodialysis. It is proposed to organize a closed circuit for cleaning the dialysis solution using an electrolytic regenerator as a function of the concentration of urea in it. The functional diagram of the created system is presented and described. To power the regenerator, ensure thermal stabilization of the solution, and power auxiliary electronic and electrical equipment, a multi-channel power supply and control system for the hemodialysis machine based on high-frequency magnetic amplifiers has been developed and researched. The advantages of power switches based on high-frequency magnetic amplifiers in comparison with transistor switches, including in the construction of controlled power sources, are given. The principle of operation of the voltage regulator on high-frequency magnetic amplifiers is described. Theoretical and experimental oscillograms are given. Photographs of the experimental unit as well as an industrial sample of the multi-channel power supply and control system of the hemodialysis machine are provided. Their main technical characteristics are given. Conclusions to the conducted work are formulated. Carrying out the regeneration of the dialysis solution significantly reduces its costs – 2 liters of solution, which is suitable for use for 6 months, is enough for the operation of the device. Existing hemodialysis machines are a stationary open system using a single-use dialysis solution at a rate of up to 35 l/h, which ties the machine to stationary clinical conditions. Introducing feedback on the concentration of urea in the dialysis solution allows you to automate the blood purification procedure, as well as automatically complete hemodialysis at the necessary time, and also eliminates the dependence of the device on the conditions of the hospital.
Do zasilania regeneratora, stabilizacji termicznej roztworu oraz zasilania pomocniczych urządzeń elektronicznych i elektrycznych opracowano i zbadano wielokanałowy układ zasilania i sterowania aparatu do hemodializy oparty na wzmacniaczach magnetycznych wysokiej częstotliwości. Przedstawiono zalety wyłączników mocy opartych na wzmacniaczach magnetycznych wysokiej częstotliwości w porównaniu z wyłącznikami tranzystorowymi, w tym w budowie sterowanych źródeł prądu. Opisano zasadę działania regulatora napięcia we wzmacniaczach magnetycznych wysokiej częstotliwości. Podano oscylogramy teoretyczne i eksperymentalne. Przedstawiono fotografie jednostki doświadczalnej oraz próbkę przemysłową wielokanałowego układu zasilania i sterowania aparatu do hemodializy. Podano ich główne parametry techniczne. Sformułowano wnioski z przeprowadzonej pracy. Przeprowadzenie regeneracji płynu do dializy znacząco obniża jego koszty – do pracy urządzenia wystarczają 2 litry płynu, który wystarcza na 6 miesięcy. Istniejące aparaty do hemodializy to stacjonarne systemy otwarte wykorzystujące roztwór do dializy jednorazowego użytku z szybkością do 35 l/h, co wiąże urządzenie ze stacjonarnymi warunkami klinicznymi. Wprowadzenie informacji zwrotnej o stężeniu mocznika w płynie dializacyjnym pozwala zautomatyzować procedurę oczyszczania krwi, a także automatycznie zakończyć hemodializę w wymaganym czasie, a także eliminuje zależność urządzenia od warunków panujących w szpitalu.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2023, 13, 3; 23--28
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 1252

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