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Wyświetlanie 1-6 z 6
Tytuł:
The importance of prediction methods in industry 4.0 on the example of steel industry
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/2064839.pdf
Data publikacji:
2019
Wydawca:
STE GROUP
Tematy:
steel production
Industry 4.0
prediction
forecasts
Opis:
This paper presents the importance of the prediction of steel production in industry 4.0 along with forecasts for steel production in the world until 2022. In the last two decades, the virtual world has been increasingly entering production. Today’s manufacturing systems are becoming faster and more flexible – easily adaptable to new products. Steel is the basic structural material (base material) for many industrial sectors. Industries such as automotive, mechanical engineering, construction and transport use steel in their production processes. Prediction methods in cyber-physical production systems are gaining in importance. The task of prediction is to reduce risk in the decision-making process. In autonomous manufacturing systems in industry 4.0 the role of prediction is more active than passive. Forecasts have the following functions: warning, reaction, prevention, normative, etc. The growing number of customized solutions in industry 4.0 translates into new challenges in the production process. Manufacturers must respond to individual customer needs more quickly, be able to personalize products while reducing energy and resource costs (saving energy and resources can increase the product competitiveness). The modern market becomes increasingly unpredictable. Production prediction under such conditions should be carried out continuously, which is possible because there is more empirical data and access to data. Information from the ongoing monitoring of the company’s production is directly transferred to the prospective evaluation. In view of the contemporary reciprocal use of automation, data processing, data exchange and manufacturing techniques, there is greater access to external data, e.g. on production in different target markets and with global, international, national, regional coverage. Companies can forecast in real time, and the forecasts obtained give the possibility to quickly change their production. Industry 4.0 (from the business objective point of view) aims to provide companies with concrete economic benefits – primarily by reducing manufacturing costs, standardizing and stabilizing quality, increasing productivity. Industry 4.0 aims to create a given autonomous smart factory system in which machines, factory components and services communicate and cooperate with each other, producing a personalized product. The aim of this paper is to present new challenges in the production processes in relation to steel production, as well as to prepare and present forecasts of (quantitative) steel production of territorial, global and temporary range until 2022, taking into account the applied production technologies (BOF and EAF). For forecasting purposes, classic trend models and adaptive trend models were used. This methodology was used to build separate forecasts for: total steel production, BOF steel and EAF steel. Empirical data is world steel production in 2000-2017 (annual production volume in Mt).
Źródło:
Multidisciplinary Aspects of Production Engineering; 2019, 2, 1; 283--295
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Post-pandemic steel production scenarios for Poland based on forecasts of annual steel production volume
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/27315574.pdf
Data publikacji:
2023
Wydawca:
STE GROUP
Tematy:
steel production
Polish steel industry
forecasting
COVID-19
Opis:
The paper presents the results of forecasts made for the volume of steel production in Poland based on actual data for the period from 2006 to 2021 with forecasting until 2026. The actual data used for the forecasts included annual steel production volumes in Poland (crude steel) in millions of tons. Basic adaptive methods were used to forecast the volume of steel production for the next five years. When selecting the methods, the course of the trend of the studied phenomenon was taken into account. In order to estimate the level of admissibility of the adopted forecasting methods, as well as to select the best forecasts, the errors of apparent forecasts (ex post) were calculated. Errors were calculated in the work: RMSE Root Mean Square Error being the square root of the mean square error of the ex-post forecasts yt for the period 2006-2021; as the mean value of the relative error of expired forecasts y*t (2006-2021) – this error informs about the part of the absolute error per unit of the real value of the variable yt. Optimization of the forecast values was based on the search for the minimum value of one of the above-mentioned errors, treated as an optimization criterion. In addition, the value of the point forecast (for 2022) obtained on the basis of the models used was compared with the steel production volume obtained for 3 quarters of 2022 in Poland with the forecast for the last quarter. Forecasting results obtained on the basis of the forecasting methods used, taking into account the permissible forecast errors, were considered as the basis for determining steel production scenarios for Poland until 2026. To determine the scenarios, forecast aggregation was used, and so the central forecasts were determined separately for decreasing trends and for increasing trends, based on the average values of the forecasts obtained for the period 2022-2026. The central forecasts were considered the baseline scenarios for steel production in Poland in 2022-2026 and the projected production volumes above the baseline forecasts with upward trends were considered an optimistic scenario, while the forecasted production volumes below the central scenario for downward trends were considered a pessimistic scenario for the Polish steel industry.
Źródło:
Management Systems in Production Engineering; 2023, 2 (31); 172--190
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steel industry 4.0 in the perspective of forecasted quantities of steel production in the world
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/326556.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
Industry 4.0
world steel production
forecasts of steel production
Przemysł 4.0
światowa produkcja stali
prognozy produkcji stali
Opis:
The development of new production systems during the fourth industrial revolution is called Industry 4.0. Production in industry 4.0 is carried out by industrial robots with intelligence computers using the Internet to control and communicate devices and man with devices and to integrate all processes inside and outside the enterprise within the supply chain using all possible technical solutions to connect the virtual world and the real world. Particular branches of industry in the world invest in new technology. New technology is implemented in the metallurgical industry, too. Managers in enterprises in the steel industry want to know how trends in steel production will be in the future. The key aim of this publication is to present forecasts of steel production quantities in the world until 2022.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2019, 134; 17-29
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of steel production and steel use in the national economy
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/1930246.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
steel industry
steel production
steel consumption
steel import
hutnictwo
produkcja stali
zużycie stali
import stali
Opis:
Purpose: The publication contains an analysis of steel production and consumption of steel in the national economy in the period from 2000 to 2018. Design/methodology/approach: The analysis is divided into three parts of the realized research. The first part is about trends of steel production; the second analysis is about average steel consumption; while the last part is about the influence of the volume of steel imports on the level of domestic consumption of steel. Assessed quantities of steel production and steel consumption are compared with basic macroeconomic indicators in Poland. Findings: The average annual dynamics of basic macroeconomic indicators in Poland from 2000 to 2018 were as follows: the largest decrease in the amount of steel produced and consumed in Poland was recorded in 2009, this was due to the effects of the global economic crisis; the average annual volume of steel production in Poland in the period from 2000 to 2018 was 9 million tonnes, in the same period, the average annual steel consumption in Poland was nearly 8.5 million tonnes, and the average annual steel import to Poland was 334 thousand tonnes; the average annual dynamics of the volume (quantity) of steel production in Poland in the period was almost +2% and was lower than the average annual dynamics of the amount of steel consumed in Poland by 0.2%; the average forecast of steel consumption in Poland in period from 2019 to 2023 will be 11.2 million tonnes. Originality/value: The result of the analysis can be used by market experts or managers to plan production in their enterprises.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2020, 143; 71-82
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scenarios of machine operation and maintenance in the cyber-physical production systems in Industry 4.0
Scenariusze eksploatacji i obsługi maszyn w cyber-fizycznych systemach produkcji w Przemyśle 4.0
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/949792.pdf
Data publikacji:
2020-04-30
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
machine
maintenance
cyber-physical production systems
Industry 4.0
maszyny przemysłowe
eksploatacja maszyn
cyber-fizyczne systemy produkcji
Przemysł 4.0
Opis:
The article presents scenarios of machine operation and maintenance in the cyber-physical production systems in Industry 4.0. The inspiration for the publication is the growing popularity of the concept of Industry 4.0. The integration of different technologies: electronics, computer technology, industrial robotics, artificial intelligence etc., have contributed to the change in the ways of machine operation and maintenance (we say about machine we think about robots). Cyber-physical production systems are built with different units, objects, and they are the fundamental pillars of Industry 4.0, completely change the robots service. Traditional technology required continuous supervision, maintenance and operation of machines. Employees were required both during the start-up of the machines and during their operation. Cyber-physical production systems, unlike homogeneous systems, are systems with different elements (components) and characteristics, and the participation of the operators (employees) in these systems is kept to a minimum or completely eliminated. Intangible components of the production system, e.g. computer programmes, data processing and transmission, controls the operation of devices. The goal of this publication is to initiate a discussion about scenarios of changes in the technical exploitation of machines in cyber-physical production systems in Industry 4.0.
Artykuł przedstawia scenariusze technicznej eksploatacji maszyn (obiektów technicznych) w perspektywie rozwoju cyber- fizycznych systemów produkcji w Przemyśle 4.0. Inspiracją do powstania pracy jest rosnąca popularność koncepcji Przemysłu 4.0. Integracja różnych technologii, m.in. elektroniki, techniki komputerowej, robotyki, sztucznej czy inteligencji, przyczyniła się do zmiany sposobów eksploatacji maszyn (robotów). Cyber-fizyczne systemy produkcji, będące podstawowym filarem Przemysłu 4.0, całkowicie zmieniają pracę służb utrzymania ruchu. Tradycyjna technologia wymagała ciągłego nadzoru, konserwacji i obsługi maszyn, a pracownicy potrzebni byli zarówno w trakcie uruchomienia maszyn, jak i podczas ich eksploatacji. Cyber-fizyczne systemy produkcji, w przeciwieństwie do układów jednorodnych, są układami o różnych charakterystykach i właściwościach, a uczestnictwo operatorów (pracowników) w tych systemach jest ograniczone do minimum lub całkowicie wyeliminowane. Niematerialne elementy systemu produkcyjnego, np. oprogramowanie, komputerowe przetwarzanie i przesyłanie danych, samodzielnie sterują pracą urządzeń. Celem niniejszej publikacji jest zainicjowanie dyskusji o scenariuszach zmian w technicznej obsłudze i eksploatacji maszyn (obiektów technicznych) w cyber-fizycznych systemach produkcji w Przemyśle 4.0.
Źródło:
Gospodarka Materiałowa i Logistyka; 2020, 4; 2-8
1231-2037
Pojawia się w:
Gospodarka Materiałowa i Logistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operator maszyn i urządzeń w Przemyśle 4.0 — wprowadzenie do tematu
Machine and equipment operator in Industry 4.0 — introduction to the topic
Autorzy:
Gajdzik, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/2085924.pdf
Data publikacji:
2021-05-31
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
przemysł 4.0
operator maszyn i urządzeń
cyberfizyczne systemy produkcji
industry 4.0
machines and equipment operator
cyber-physical production systems
Opis:
W artykule przedstawiono obraz operatora maszyn i urządzeń w kontekście rozwoju przemysłowych systemów cyberfizycznych i adaptacyjnej automatyzacji w przedsiębiorstwach produkcyjnych. Rozwój technologii sprawia, że pojawiają się nowe wyzwania wobec operatorów maszyn i urządzeń. Lansowana od dekady koncepcja Przemysłu 4.0 kształtuje nowe środowisko pracy operatorów obsługujących maszyny i urządzenia. Przemysł 4.0 jest pojęciem używanym do opisu technologii w czwartej rewolucji przemysłowej. Zastosowanie do sterowania produkcją nowoczesnych technologii informatycznych i komunikacyjnych, wspartych pełną automatyzacją i robotyzacją czynności, Internetem Rzeczy i przetwarzaniem danych w chmurze, zmienia dotychczasowe sposoby obsługi maszyn i urządzeń. W literaturze przedmiotu toczą się dyskusje wokół roli operatorów maszyn i urządzeń w nowoczesnych fabrykach. Wtórne źródła informacji były podstawą do nakreślenia ogólnych (ramowych) warunków pracy i cech operatora maszyn i urządzeń w Przemyśle 4.0. Celem niniejszego artykułu jest wprowadzenie do szerokiej tematyki zagadnień o roli operatorów maszyn i urządzeń w cyberfizycznych systemach produkcji.
This paper presents an image of the machine and equipment operator in the context of the development of industrial cyberphysical systems and adaptive automation in manufacturing companies. The development of technology makes new challenges for machine and equipment operators. The concept of Industry 4.0, which has been lashed for a decade, is shaping a new work environment for operators who operate machinery and equipment. Industry 4.0 is the term used for technological advances in the fourth industrial revolution. Advanced information and communication technologies, supported by full automation and robotization, the Internet of Things and cloud computing to control production, are changing the existing ways of operating machinery and equipment. There are discussions in the literature around the role of machine and equipment operators in modern factories. Secondary sources of information was the basis for outlining the general (framework) conditions of work and profile of the operator of machinery and equipment in Industry 4.0. The aim of this paper is an introduction to the broad topic of issues about the role of the operators of machinery and equipment in cyber-physical systems of production.
Źródło:
Gospodarka Materiałowa i Logistyka; 2021, 5; 2-7
1231-2037
Pojawia się w:
Gospodarka Materiałowa i Logistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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