Advanced Logistic Systems - Theory and Practice

Evolution and development tendencies of material handling machines

Péter Telek — Fri, 11 Oct 2024 00:00:00 +0200

The tools used during mobilities are very diverse, but their operation and structure can be traced back to the same basic principles that created the material handling machines during the previous centuries. Today, knowledge of material handling machines has become a basic necessity not only for industrial and service processes, but also for people's everyday lives, since our lives are almost unimaginably filled with different means of transportation, or without using the vehicles that transport and load our daily consumer goods. As in all areas, material handling is becoming more and more modern, and equipment that serves social and economic needs at a high level is used. One of the most defining characteristics of today's consumer society is extremely rapid change, which also affects our devices, so the design of material handling machines is also constantly changing. An important question of competitive service is how to meet rapidly changing needs. In my article, I review the development of material handling equipment, or the most important handling machines used in modern systems. Based on the outlined processes and technical changes, I will try to show where material handling is headed, what trends prevail today or are expected in server systems of the near future.

The always changing data problem of using AI in manufacturing - Using synthetic data from the digital twin to feed AI models

Zsolt Molnár, Péter Tamás, Béla Illés — Fri, 11 Oct 2024 00:00:00 +0200

Production is becoming increasingly flexible, which also requires the flexibility of the support system for the production. And the key here is the speed of decisions, in which the support of modern artificial intelligence systems can be crucial. Flexible production is based on a well-planned control of production, which increasingly uses some artificial intelligence component. Artificial intelligence can already be useful in the early stages of planning the production line, and of course it can also control the daily operation of the production line after the installation of the production place or line. The biggest problem is supplying the neural network that controls the artificial intelligence with training data. The production lines typically change every 2-4 months, new products appear, the layout changes, and the main process data also changes due to the development of the processes. This results in the training data becoming outdated or obsolete very quickly and thus cannot be used to train models anymore. High-quality learning data can be produced by digital twin models of production lines. Such synthetic data has several advantages over data collected from production. In this article, we investigate how useful this synthetic data is during the life cycle of the production line.

Practical experiences of digitalization and automation in logistics

Fri, 11 Oct 2024 00:00:00 +0200

Recently, digitalization and automation have gained more and more space, which has long been felt in the field of logistics. Although we can find examples of both in almost every major company, we can state that each company uses them to a different extent and in different areas. In addition to the fact that we find many different examples, it is typical that they are specifically customized and therefore their introduction requires additional expenditures and changes at other companies. What can and to what extent is it reasonable to digitize and automate? What are the prerequisites for these to be implemented cost-effectively and in the most targeted manner

Simulation of container discharge dynamics using modified cellular automata

Péter Veres — Fri, 11 Oct 2024 00:00:00 +0200

In the field of physical logistics, efficient and precise control of material flow during the emptying of containers such as silos and wagons is crucial. This study introduces a not conventional cellular automaton model to simulate spillage from containers. The model is implemented using Excel macros, providing a user-friendly and accessible platform for logistics professionals. By modifying the traditional cellular automaton framework, the simulation can accurately represents the dynamics of material flow during container emptying processes. The proposed method allows for fine-tuned control over the spillage by integrating specific constraints and parameters, enhancing operational efficiency and reducing material loss. The versatility of the model makes it applicable to a wide range of logistical scenarios, demonstrating its potential as a valuable tool in physical logistics management.

The role of industrial strategies in chemical production and service supply logistics processes

János Juhász — Fri, 11 Oct 2024 00:00:00 +0200

The research topic focuses on applying industrial strategies, especially in chemical industry logistics processes. The research aims to examine the future of the chemical industry in Hungary and worldwide. The question is what is the role of logistics in the chemical supply chain and the difficulties faced in this area? The main difficulty that can be encountered is achieving effective automation and digitalization while maintaining appropriate safety, which is an essential aspect of the chemical industry. The research presents an existing AGV transport solution that significantly facilitates on-site logistics processes within a chemical company. In the research, the potential development areas are found which could be interesting to explore in logistics processes are also discussed.

Collaborative logistics: An innovative strategy to address future logistics challenges

Gábor Nagy, Szabolcs Szentesi — Fri, 11 Oct 2024 00:00:00 +0200

This article delves into the implementation and benefits of collaborative logistics, a strategic approach wherein logistics stakeholders engage in close cooperation to optimize resources and processes. The significance of a robust technological infrastructure is underscored, enabling real-time information sharing and integrated planning, which are pivotal for enhancing supply chain efficiency, reducing costs, and fostering sustainability. The discussion includes various collaborative logistics models, such as shared transportation routes and warehouses, which are instrumental in minimizing waste and mitigating environmental impact. The article further emphasizes the critical role of trust, transparency, and comprehensive legal frameworks in ensuring the success of such collaborations. By incorporating sustainability aspects into inventory management practices, companies can not only achieve substantial economic and environmental benefits but also secure a long-term competitive advantage. This integrated approach aligns with contemporary demands for sustainable operations, ultimately contributing to reduced global environmental footprint and compliance with stringent regulatory standards.

Green logistics: Transforming supply chains for a sustainable future

Gábor Nagy, Szabolcs Szentesi — Fri, 11 Oct 2024 00:00:00 +0200

In the face of escalating climate change and the increasing significance of sustainability, companies are shifting towards green logistics solutions. This article explores the various sustainable practices within logistics, the implementation of green logistics solutions, and the strategies for reducing carbon footprints. The logistics sector, a significant contributor to global greenhouse gas emissions, is under increasing pressure to adopt environmentally friendly practices. By examining case studies and industry data, we provide a comprehensive analysis of the current trends and future directions in sustainable logistics. Our study highlights the importance of integrating eco-friendly transportation, energy-efficient warehousing, sustainable packaging, and advanced inventory management systems. Additionally, we discuss the challenges companies face in adopting green logistics, such as high initial costs, technological limitations, and regulatory compliance. Through this analysis, we aim to shed light on the transformative potential of green logistics in mitigating climate change and promoting long-term sustainability in the supply chain industry.

An innovative operational model for companies operating bus fleets

Vince Kruchina, Péter Tamás, György Tibor Sárközi, Béla Illés — Fri, 11 Oct 2024 00:00:00 +0200

The organization and operation of public transport have not escaped the impact of changes taking place worldwide which are driven and influenced by the rapid spread of disruptive technologies and efforts related to climate protection and sustainable development. The challenges posed by the proliferation of electric vehicles (EVs) – including electric buses (BEBs) – require new solutions and new ways of thinking, and a more holistic and innovative operating model for road transport companies using buses. In this model, the authors present a methodology for the delivery of contracted scheduled services that, as part of a systems approach, links a mixed fleet and its appropriate route plan within a data-driven circular operational model, allowing room for innovative energy solutions, the use of renewable energy sources and for satisfaction of increasingly demanding climate and sustainability requirements, all using a logistics science approach.

Water resources in Commonwealth of Independent States countries: a literature review

Fri, 19 Jul 2024 00:00:00 +0200

Research on the assessment of water resources in agricultural regions is a prominent area of study. These resources are vital for many arid and agricultural areas, including those in the Commonwealth of Independent States (CIS). This paper provides a comprehensive review of research trends, analyzing scientific production and published articles on water resources in CIS countries from 2000 to 2023. We collected, reviewed, and analyzed 163 publications from the Scopus database meeting our selection criteria. The bibliometric analysis revealed publications in English (149) and Russian (15), annual publication counts, document types, top papers, journals, funding sponsors, subject categories, and affiliations by country and institution. We also examined co-authors and keyword co-occurrence to identify knowledge clusters in the literature. The analysis highlighted the need for international research to enhance scientific exchange on this topic. Long-term, continuous research and sustainable development of water resource concepts are essential for future agricultural and water management integration. This study may inspire new trends in agricultural development, focusing on irrigation efficiency, water distribution, and climate change within a sustainable circular economy.

New trends in sustainable supply chains: insights from recent studies

Fri, 19 Jul 2024 00:00:00 +0200

Research on the Sustainable Supply Chain is a significant focus within the academic community, highlighting the importance of smart logistics, smart transportation, and digital technologies. This paper reviews current research trends from 2014 to 2023 by analyzing publications from the Web of Science database. The bibliometric analysis covers publication counts, document types, top-cited papers, leading journals, main funding sponsors, and distribution by subject categories, countries, and institutions. Additionally, co-authorship and keyword co-occurrence were examined to identify key knowledge components and research clusters. The analysis underscores the need for expanded international research and continuous integration of Sustainable Supply Chain concepts for future development. The goal of the document is to provide a comprehensive review of research and industrial trends and key insights in the fields of smart logistics, smart transportation, and digital technologies in recent years.

Innovative techniques for the storage and transportation of hazardous materials

Bence László Lukács, Péter Veres — Fri, 19 Jul 2024 00:00:00 +0200

The ADR is an international agreement that regulates the controlled and safe transportation of hazardous materials, which is crucial for protecting human health and the environment. In our research, as a second-year logistics engineering student and advisor, we analyze modern approaches to the storage and transportation of hazardous materials. We present the historical background of hazardous materials, various transportation and storage methods, and their labeling systems, such as CLP pictograms and ADR markings. We also discuss storage techniques, legal implications, and provide examples to illustrate their importance based on everyday hazardous materials. The transportation of hazardous materials significantly impacts multiple industries; therefore, we propose suggestions to improve the efficiency of transportation processes through the use of new packaging for transportation and storage.

Effects of operation parameters of material handling machines to the applicability

Péter Telek — Fri, 19 Jul 2024 00:00:00 +0200

In the past period, the structure and technical elements of material handling machines have changed significantly due to changes in service expectations, technical possibilities and environmental conditions. There are devices that are easier to adapt to certain technical changes, while others may be completely out of industrial use. The purpose of this article is to provide an overview of the most important properties affecting the operation of material handling equipment and to present the relationships between these properties and the applicability. By exploring the relationships between these properties and the most typical areas of application, it is possible to select the most suitable tools. An example task is also presented in the article to show how the method works.

Real-time supplier selection using digital twin technology: an Analytic Hierarchy Process-based optimization approach

Ágota Bányai Tóth — Fri, 19 Jul 2024 00:00:00 +0200

Today, the selection of the optimal suppliers plays an increasingly important role in the efficient operation of supply chains. One of the main reasons for this is that the fourth industrial revolution has seen the emergence of increasingly complex supply chains, involving a growing number of suppliers to meet increasingly diversified customer needs. While manufacturing companies use framework contracts to secure the parts needed to meet uncertain customer needs, framework contracts often fix requirements for a fixed future period in the light of past supplier performance. The Fourth Industrial Revolution is enabling the use of a number of new methods and tools to collect real-time data on supply chain operations and to define key performance indicators (KPIs) that show the performance of individual players in the value chain in real time. In this paper, the author proposes a supplier selection method based on analytic hierarchy process (AHP) that is able to determine the optimal suppliers for current component requirements in real time based on real-time information about the state of each player in the supply chain.

Technology in Industry 5.0: critical components and their impact

Tamás Bányai — Fri, 19 Jul 2024 00:00:00 +0200

Industrial revolutions have always brought about major changes in the life of mankind. The Fourth Industrial Revolution has revolutionized industrial production through digitalisation, but has also had a major impact on service processes. However, the so-called Industry 4.0 technologies applied in the context of the fourth industrial revolution also allow new goals to be achieved that were not yet clearly defined in the paradigm of the fourth industrial revolution: sustainability, resiliency, and human-centricity. In this article, the author seeks to answer the questions of what existing technologies can be used to achieve the goals of sustainability, resiliency, and human-centricity, and what are the main research directions that can be used to develop a sustainable production and service environment.

Revolutionizing Production Logistics: Industry 5.0's Impact

Gábor Nagy, Szabolcs Szentesi — Fri, 19 Jul 2024 00:00:00 +0200

The article delves into the transformative impact of Industry 5.0 principles on production logistics, aiming to enhance manufacturing efficiency and responsiveness by integrating advanced concepts like the milkrun, real-time scheduling, and optimization within smart factories. Addressing evolving customer needs for rapid customization, it seeks to revolutionize traditional approaches to production logistics, establishing a more adaptive and dynamic manufacturing ecosystem. This aligns with the advent of Industry 5.0, which heralds a new era in technological advancements and digitalization, fostering unprecedented transparency in corporate processes. Going beyond the Fourth Industrial Revolution, it seamlessly integrates the corporate value chain and supply network, emphasizing the importance of leveraging integration opportunities between production management and logistics amidst intensifying market competition. The study meticulously examines the role of production logistics within the corporate logistics system, shedding light on the tangible benefits of real-time scheduling and aiming to provide crucial insights for businesses navigating this new industrial revolution.

Drones and their application in logistics

Levente Boncsér, Ákos Cservenák, Patrick Kröpfl, Christian Landschützer — Fri, 19 Jul 2024 00:00:00 +0200

The widespread adoption and utilization of drones often raise questions regarding what exactly constitutes a drone and the characteristics that categorize a device into this category. In the first section, we attempt to define the concept of a drone, emphasizing its diversity and the misconceptions surrounding its terminology. The second section introduces classifications based on the main features of drones to better understand their application areas. The third and fourth sections examine daily and military uses, as well as the logistical role of drones, highlighting emerging challenges and limitations. Finally, we summarize the potential dangers of drone use, legal restrictions, as well as public opinion and cybersecurity concerns, which frequently hinder their broader adoption and application.

Neural Networks for Vehicle Routing Problem

László Kovács, Ali Jlidi — Fri, 19 Jul 2024 00:00:00 +0200

The Vehicle Routing Problem is about optimizing the routes of vehicles to meet the needs of customers at specific locations. The route graph consists of depots on several levels and customer positions. Several optimization methods have been developed over the years, most of which are based on some type of classic heuristic: genetic algorithm, simulated annealing, tabu search, ant colony optimization, firefly algorithm. Recent developments in machine learning provide a new toolset, the rich family of neural networks, for tackling complex problems. The main area of application of neural networks is the area of classification and regression. Route optimization can be viewed as a new challenge for neural networks. The article first presents an analysis of the applicability of neural network tools, then a novel graphical neural network model is presented in detail. The efficiency analysis based on test experiments shows the applicability of the proposed NN architecture.

Recycling of car wrecks

Anett Flaskó, Ákos Cservenák — Fri, 11 Oct 2024 00:00:00 +0200

The main purpose of this article is to present the recycling of vehicle wrecks. The article covers how we interpret recycling and why it is important today in the form of conceptual framework. The paper also details the appearing of recycling in logistics. The research revealed that there are many reasons why we recycle vehicles, and this shows how necessary it is to recycle wrecks. The article also covers the process of recycling of car wrecks, starting with transporting of wrecks to junkyards, continuing with the removal and disassembly of car wrecks, and how the parts are handled and how the tools are reused. The researches also examines the case, if the car wreck is no longer refurbishable and removable.

A Practical solution to the usability of Tecnomatix Plant Simulation software to increase production

Ján Kopec, Miriam Pekarčíková, Peter Trebuňa, Jozef Trojan — Fri, 19 Jul 2024 00:00:00 +0200

This article presents a practical solution to improve the usability of Tecnomatix Plant Simulation software to increase production. In today's dynamic industrial environment, optimizing manufacturing processes is crucial to achieving a competitive advantage. Tecnomatix Plant Simulation is a powerful tool for modeling and simulating manufacturing processes, making it easy to identify inefficiencies and opportunities for improvement. However, maximizing the utility of the software often presents challenges due to its complexity and the need for specialized expertise. We illustrate the implementation of our approach through case studies in a variety of industrial environments, demonstrating concrete improvements in production efficiency and performance. By bridging the gap between advanced simulation technology and practical application, our solution offers a path for manufacturers to unlock greater productivity and competitiveness in today's dynamic market environment.

B2C-oriented quality control of logistics services based on an economic perspective

Azyk Orozonova, Aigerim Akmatova — Fri, 19 Jul 2024 00:00:00 +0200

The research of the quality control of logistics services relevancy is determined by the increasingly dynamic and competitive nature of the market requires companies to ensure the high quality of their logistics services, especially in the sphere of business-to-consumer (B2C). The research aims to analyse and identify optimal approaches and strategies for quality control of logistics services in B2C interactions. Among the methods used were the analytical method, statistical method, functional method, system analysis method, deduction method, synthesis method and comparison method. In the process of the study, the current practice of quality control in B2C logistics was analysed. An economic relevance assessment identified how service quality can affect business and also assessed the potential benefits of improving it. Approaches to quality control were analysed, including such methods as statistical data analysis, internal and external audits, application of quality standards, and use of technology for monitoring and tracking processes. Opportunities to optimise logistics processes and their impact on overall quality were also considered. A comparative analysis of practices in the industry identified best practices and innovations. The study summarised current trends and provided practical recommendations for companies seeking to optimise quality control of logistics services on a cost-effective basis. The practical relevance of the findings is to provide companies with valuable tools and insights to improve their logistics operations and enhance customer service.

Launching of the logistics double diploma program beetween Hungary and Kyrgyzistan:

Péter Veres, Péter Tamás, Akylbek Umetaliev — Fri, 12 Apr 2024 00:00:00 +0200

In recent years, there has been a growing demand for education in the field of intralogistics, as companies began to treat this segment as a separate area, not just as part of procurement or storage. As a result, the demand for professionals specialized in this area has increased, not only in Europe but worldwide. The University of Miskolc, in collaboration with its former partner, the Kyrgyz State Technical University, has established a dual degree program with a significant emphasis on production logistics. This article presents the origin and background of the program, the initial challenges of course launches and how they were overcome, as well as providing insights into the future of logistics education.

Mobile handling units in advanced material handling systems

Péter Telek — Fri, 12 Apr 2024 00:00:00 +0200

To fulfil the increasing requirements of the social and economic environments, the equipment used in material handling processes have to be developed. The machines fitted exactly to certain manufacturing procedures some decades ago, cannot be found in the advanced version, they role are acted by other, earlier rarely used computer-controlled devices. The traditional method for the material handling is the using of mobile handling units, where the goods are moving on the machines, so the characteristics of the transportation are based on the parameters of the handling equipment. Suited to the new requirements, the structure and operation of the mobile handling units are changing but their application have similar conditions. There are many handling machines belonging to this category, this paper gives an overview about their most popular variations and their usability in advanced material handling systems.

Possibilities of using driverless handling robots in intralogistics

Balázs Komáromi, Szabolcs Szentesi — Fri, 12 Apr 2024 00:00:00 +0200

In this article we deal with production logistics within internal logistics, as well as the material supply of production, as well as the related material handling and the use of material handling robots supporting processes. Robot navigation is a multi-approach discipline that poses a major challenge in intralogistics. In general, the navigation principle, software and hardcer requirements of mobile robots must be prepared on the basis of logistics processes in such a way as to satisfy production with sufficient accuracy and safety. In the article we present the types of robots and give an insight about autonomous mobile robots.

Staffing and human resource assignment in U-shaped production cells

Tamás Bányai, Ireneusz Kaczmar — Fri, 12 Apr 2024 00:00:00 +0200

Today, U-shaped production cells play an important role in manufacturing, as their flexibility allows for highly efficient production with a small number of operators. Since the cost of human resources has a significant impact on the total cost of the overall production process and the assignment of operators to tasks can have a major impact on the efficiency of the production process, it is important to develop design methods that allow the assignment of resources to tasks in a way that maximizes the efficiency of the U-cell manufacturing system. In this paper, the authors present a mathematical model for assigning operators to task sets using different objective functions. Calculations based on the presented mathematical model demonstrate that, given a suitable choice of objective functions, it is possible to determine an optimal operator-task assignment that can improve the efficiency of the manufacturing system.

Ranking of serving policies with simulations of indirect access warehouse

Tamás Hartványi, Zoltán András Nagy, Miklós Szabó — Fri, 12 Apr 2024 00:00:00 +0200

The efficiency of warehouse processes is influenced by the design, layout and operation of the warehouse. We have developed a simulation process to valuate how the initial arrangement of products affects logistics activities in an inhomogeneous storage environment with no direct access. Continuing our research, we compared the operational logics commonly used in warehouses with indirect storage access through that simulation. The results were classified using a complex evaluation method, and then the ranking of the service logics was established. We believe that our research results can be useful for all those who want to achieve a more efficient use of warehouse space while respecting service time limits.

Sidewalk autonomous delivery robots for last-mile parcel delivery

Henning Strubelt — Fri, 12 Apr 2024 00:00:00 +0200

The dynamics of e-commerce, combined with the growing number of users and the increasing volume of last-mile consignments, are driving current developments in logistics. As online commerce continues to grow, so does the need for active service providers to deliver courier, express, and parcel (CEP) shipments on time. Autonomous last-mile delivery is said to have the potential to transform the way we receive goods. As these autonomous delivery technologies continue to develop and become more widespread, it is possible to foresee a future where autonomous delivery vehicles seamlessly navigate our roads and sidewalks, bringing our online orders to our doorsteps faster and more efficiently than ever. After a general classification of sidewalk autonomous delivery robots (SADRs), this paper examines how far the development and implementation of these vehicles have progressed and which developments offer the greatest opportunities for ecological and economic use in the future.

Implementation of ship-to-sequence supply strategies

János Juhász, Tamás Bányai — Fri, 12 Apr 2024 00:00:00 +0200

The supply chain optimization is key to improving the cost efficiency and sustainability of manufacturing and service companies. One of the most innovative strategies is just-in-sequence supply, which offers improvements over traditional just-in-time approaches. This paper focuses on the implementation of ship-to-ship supply, especially to mathematical modeling of just-in-sequence strategies.

It not only evaluates the entire supply process, but this approach allows for a comprehensive analysis of the financial impact of ship-to-ship supply for both suppliers and end-users. It goes beyond the analysis of the entire supply process; it allows an examination of selected processes at deeper levels and evaluates the impact of different factors on financial indicators.

Business models on the basis of digital infrastructure data

Steve Schulz, Sebastian Trojahn — Fri, 12 Apr 2024 00:00:00 +0200

The project Ready for Smart City Robots (R4R) is developing strategies for the detailed capture of infrastructural environmental parameters. These are intended to be utilized for autonomous mobility and logistics applications on pedestrian and bicycle paths. The project evaluates the quality and completeness of data for Smart City concepts, using examples from (autonomous) micro-mobility in logistics and transportation. The results encompass the following areas: firstly, the identification of necessary environmental information for environmentally friendly, automated last-mile logistics, along with a continuous data collection method for up-to-date information. Secondly, the examination of various integration scenarios for autonomous delivery services and an autonomous bicycle rental system in rural areas. This includes the development of application scenarios and the scientific support of the prototype construction of the necessary technical prerequisites for the data/sensor boxes. The following outlines the business model potentials for data collection, autonomous micro-mobility, sharing services, and Smart City applications.

The role of emerging technologies in enhancing transparency in humanitarian logistics: systematic literature review between 2010 and 2023

Marwa Ben Othmen — Fri, 12 Apr 2024 00:00:00 +0200

This systematic literature review critically examines the influence of technology on transparency and humanitarian logistics between 2010 and 2023. The study employs the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) methodology to analyze a comprehensive selection of peer-reviewed journal articles. The review identifies a growing body of literature that explores the potential of emerging technologies, such as blockchain, artificial intelligence (AI), and Internet of Things (IoT), to improve transparency in humanitarian logistics. The integration of these technologies is proposed to enhance collaboration, supply chain agility, and information flow. Hence, this systematic review provides a better understanding of the potential benefits of technologies in humanitarian logistics while highlighting the need for further research.

Navigating uncharted waters: black swan events and global supply chain resilience

Nagy Gábor, Szabolcs Szentesi — Fri, 12 Apr 2024 00:00:00 +0200

This paper delves into the critical realm of global supply chain management, exploring the challenges posed by black swan events—unpredictable and high-impact occurrences. In navigating these uncharted waters, the focus is on bolstering resilience to ensure the continuity and adaptability of supply chains. The study emphasizes proactive risk assessment and scenario planning, advocating for diversification, redundancy, and the integration of technology. Collaboration, agile supply chain practices, and resilient financial planning are deemed pivotal, along with a commitment to regulatory compliance and employee well-being. The pursuit of continuous improvement and the optimization of global networks round out a comprehensive strategy to fortify supply chains against the unforeseen disruptions that characterize the contemporary business landscape.

Establishing logistics start-up companies: the role of institutions

Ákos Tóth, István Pesti — Fri, 12 Apr 2024 00:00:00 +0200

The article examines how start-up companies in the transportation and warehousing sector can be encouraged by institutions from a macroeconomic perspective. The assumption is that start-ups are more likely to be successful in countries with higher quality institutional systems. In this article, the statistical data of the EU member states are compared using comparative analytical methods, followed by tests using econometric models to evaluate the results. On the one hand, the World Governance Indicator, Human Development Index, and International Property Rights Index of the examined European countries, and on the other hand Hit Horizon and EU startup industry databases are used to answer the puzzle. The assumption is that institutions play an important role in the success of start-up companies in the transportation and warehousing sectors.

Design methodology for the control logic of flexible production systems and related logistics

Zsolt Molnar, Péter Tamás, Béla Illés — Fri, 12 Apr 2024 00:00:00 +0200

The ever-shorter product life cycle entails a shortening of the life cycle of the production site and production systems as well. One of the biggest advantages of flexible production systems is that new products can be introduced to them continuously, so that their life cycle can be significantly extended. Flexible manufacturing systems, on the other hand, also require flexible control, the logic of which must be defined already in the design phase. The main elements of the design methodology of the production and logistics layout that make up the research are the information relationship chart and the related decision tables, which are suitable for speeding up the design and later for facilitating the creation of a digital twin and control logic programming.

Modelling and optimizing material flows in electrical energy distribution – first model

Ernesto Cabrera Gonzales, Béla Illés, Ákos Cservenák — Tue, 19 Dec 2023 00:00:00 +0100

The paper focuses on modelling and optimizing the distribution of material flows in a first version. Furthermore, the focus is on electrical energy flows, considering different energy sources and types of consumers. The most commonly used energy sources are nuclear, thermal, renewable and geothermal. The main categories of consumers include industry, residential, commercial and, increasingly, electric transportation. A first model is proposed which uses matrices for the various time constraints and uses graph theory to represent the flow of energy between sources and consumers. Variables and constraints are established to ensure that the flow remains within maximum capacities and meets minimum demands. In addition, a first version of mathematical model is proposed to minimize total energy supply costs.

Automation features of material handling machines

Péter Telek — Tue, 19 Dec 2023 00:00:00 +0100

Industrial, service and other processes applying more and more automated devices, there are many smart solutions in the homes and robots are standing at the gates. However, the situation of handling processes is a little bit special, because of the operation specifications of the handling machines. Most of the automation tasks and problems related to discontinuous handling machines, their application requires much more planning and operation tasks. This paper gives an overview about the application and specifications of automated material handling machines, especially focusing to those features, which can influence the handling processes and many parameters of the material handling machines. The objective of this research is to uncover the specifications of material handling machines. The results can help to build more effective handling systems and automated handling equipment.

Vaccine distribution network opportunities on a national scale

Kitti Seprényi, Péter Veres, Ákos Cservenák — Tue, 19 Dec 2023 00:00:00 +0100

Building an effective distribution network is a significant advantage for any company. This is especially true for easily damaged or perishable items, where the length and speed of the transport, as well as the loading time, play a major role in maintaining quality. In this article, we examined the transport/distribution options for the creation of a vaccine distribution network in Hungary, which can meet strict rules. We took into account the driver’s working hours, the maximum delivery time of the vaccine, the storage options of the county seats, and as a result we got the most efficient distribution plan of Hungary. To solve the problem, we use conventional-, greedy-, and heuristic algorithms, which were compiled by Excel and its SOLVER extension.

The role of forecasting in the development of packaging systems

Henriett Matyi, Péter Tamás — Tue, 19 Dec 2023 00:00:00 +0100

As the competitive market becomes increasingly customized, companies strive to sell high-quality products to meet unique customer demands. We are living in the era of the 4th industrial revolution, where a lot of data is available in supply chain management from various sources and in different formats. Big Data and the Internet of Things (IoT) offer numerous opportunities for the proper utilization and interpretation of this data. Methodologies for forecasting provide assistance in making informed decisions and improving service quality. This document focuses on the role of forecasting in the development of packaging systems. To facilitate the selection of the appropriate packaging system, a conceptual simulation testing method has been developed and is presented in this paper, aiming to conduct impact assessments.

Project Oriented Management (POM) and Logistical Challenges in Maintenance and Network Development Systems

Zsombor Lóránd Latorcai, Béla Illés, Péter Tamás — Tue, 19 Dec 2023 00:00:00 +0100

Maintenance, Refurbishment and Network Upgrading Systems occupy a prominent place among service systems, especially due to their dispersed location and large territorial extent. For the efficient opertaion of these systems, it is essential to apply Project Oriented Management (POM), which aims at optimizing logistic processes and meeting project specific requirements.

The importance of inverse logistics for public transport companies operating a large battery electric bus fleet

Vince Kruchina, Béla Illés, Péter Tamás — Tue, 19 Dec 2023 00:00:00 +0100

Electric vehicles are becoming increasingly popular to reduce environmental impact and to make logistics systems more cost-effective. This trend is affecting not only passenger cars but also public transport, especially in developed countries. For electric buses, the recycling of high-capacity batteries is becoming an increasingly important issue, as no generally applicable recycling model has yet been developed in this area. The paper presents a literature analysis in this field and identifies the main trends in battery recycling. In essence, it opens the way for future research, i. e. the elaboration of different operational models.

Optimization of routing problems in manufacturing supply

Tamás Bányai — Tue, 19 Dec 2023 00:00:00 +0100

The optimal design of a suitable material supply process is important for the continuous, smooth operation of manufacturing processes, which includes the transportation and handling of work pieces, components, tools, equipment, pallets, packaging materials, and measuring instruments. The most common form of implementation of these material handling processes, especially in mass production, is the milkrun supply. In this paper, the author presents a method to optimise the milkrun material supply processes in manufacturing. The author gives a brief overview of research results related to milkrun-based material supply solutions. An Excel Solver-based optimization method is presented that is suitable to support the design of an optimal material supply process in any manufacturing environment by determining optimal material supply routes and optimal number of milkrun trolleys, depending on the supply demand, location of warehouse and manufacturing cells and the capacity of the milkrun trolleys.

Transport channels in advanced material handling systems

Péter Telek — Mon, 30 Oct 2023 00:00:00 +0100

To fulfil the increasing requirements of the social and economic environments, the equipment used in material handling processes have to be developed. The machines fitted exactly to certain manufacturing procedures some decades ago, cannot be found in the advanced version, they role are acted by other, earlier rarely used computer-controlled devices. This paper gives an overview about a special group of material handling machines –transport channels -, presented their operation characteristics and application possibilities to cover their usability in advanced handling systems. Statements presented in this paper are the first results of the research to uncover the special parameters and application advantages of these machines, which can show the development directions of them.

Route optimization opportunities in logistics

László Levente Nagy, Attila Károly Varga, Szabolcs Szentesi — Mon, 30 Oct 2023 00:00:00 +0100

The article describes the process of warehousing complementing with the definition of concepts essential for warehousing and the various areas that can be found in most warehouses. In the rest of the article, the relationship between the warehouse and production will be discussed,then the presentation of milkrun systems and the related milkrun routes will come to the fore. In the last part of this article, we will introduce how to calculate the optimal milkrun path using the Solver add-in for Microsoft Excel.

Logistics-based design of collection system for asbeston-containing roof structures

Tamás Bányai — Mon, 30 Oct 2023 00:00:00 +0100

Asbestos-containing roofing materials are an increasing hazard, which justifies their replacement by environmentally friendly roofing materials. Replacements can be carried out on an individual initiative basis, but a coordinated, systemic replacement will have a more significant impact. In order for such systemic asbestos removal to be successful from economics and logistics point of view, it is necessary to plan the associated logistics processes, as asbestos removal generates a significant transportation demand due to the large amount of waste generated. In the framework of this paper, the author presents an algorithm to plan the logistic process of centralized asbestos removal. A simple calculation method is presented to determine the cost of collection.

Supply chain models for non-reusable packaging logistics

Tamás Bányai — Mon, 30 Oct 2023 00:00:00 +0100

Packaging logistics plays an important role in today’s economy, because a well-chosen packaging can significantly increase the market share of a company. However, packaging has advantageous impacts on the purchasing, production and distribution processes, but negative impact must be also taken into consideration focusing on sustainability, costs, environmental impacts and logistics. Within the frame of this article, the author suggests a potential model structure for non-reusable packaging logistics focusing on the type of the collection and distribution routes, number of senders and receivers, location of recycling or disposal, maintenance and cleaning location, existence of agents, logistics centers and central depots. The suggested approach makes it possible to derive the typical supply chain models for both non-reusable and reusable packaging. Within the frame of this article, the most important supply chain models for non-reusable packaging logistics are described.

Improving the Logistics of Institutional Postal Services

Pálma Eszter Nagy, Tamás Bányai — Mon, 30 Oct 2023 00:00:00 +0100

Postal services are often considered by the different institutions as a back-up service. Taking into account that in case of large geographical coverage these services can generate significant costs, it is important to optimize the postal service functions within these institutions and to develop the already existing conventional postal services. Within the frame of this article the authors review the logistics processes of the postal services at the University of Miskolc to propose improvements to the processes of postal services focusing on delivery. The main regulatory elements and the logistics processes of the institutional postal services are discussed and some critical remarks are described focusing on three main areas: the facility location optimization of the institutional postal services, the lack of use of modern technologies and the lack of modern administrative facilities. On the basis of these criticisms, the authors define recommendations for improving institutional postal services. Regarding the facility location optimization problem, a mathematical model and an optimization algorithm is described to evaluate the efficiency of the logistics processes of delivery services. The proposed methodology supports a cost-based analysis of different solution variants and a priority-based differentiation between institutions and offices. The suggested approach is tested with a real scenario, where the numerical results validate the efficiency of the evaluation of optimization algorithm. The second improvement direction is the application of a pneumatic tube system. The authors show the most important parts of the proposed pneumatic tube system, which can lead to decreased labor cost and increased service level.

Pick-by-vision technology as an advancement in logistics process solutions

Ján Kopec, Miriam Pekarčíková, Peter Trebuňa, Matúš Matiscsák — Mon, 30 Oct 2023 00:00:00 +0100

The aim of this article is to describe pick-by-vision technology as an effective tool for solving logistics process problems. The technology is the result of the work of TeamViewer Germany GmbH and is already in use in German companies. The introduction of this technology helps companies in several aspects and brings several benefits. It is not a complex technology that would need complex and therefore expensive software and hardware. The technology is because up to 80% of all information is perceived by sight. This gives the operator a free hand. Several advantages are described in the article below. The technology works with a pick-by-light device that is attached to the employee's hand. By scanning, the glasses display all the information the operator needs. No paper or other order tracking system or logistics processes are required.

Developing the concept of roller conveyor systems using Industry 4.0 tools

Szabolcs Szentesi, Péter Tamás — Fri, 14 Jul 2023 00:00:00 +0200

In the increasingly globalized world, markets are no longer competed for by individual companies, but by groups of companies and networks. Due to the challenges of globalization and sustainability, the management of the material flow has become a critical issue for organizations engaged in manufacturing activities, as the implementation of changed products due to new regulations into the existing material flow service network is a major challenge. Today, Industry 4.0 tools help solve challenges. The tools of Industry 4.0 and Logistics 4.0 offer many opportunities to professionals today, which are driven by several key basic technologies, such as simulation technologies, digital copies, Big Data technology. These technologies have a positive impact on the sustainability performance of material flow activities. Simulation models play an important role in the evaluation and planning of material flow strategies. The purpose of this study is to apply the methods used in Industry 4.0 and Logistics 4.0 in the design of material flow on a roller conveyor.

Examples for the application of rule-based algorithms in the simulation modeling of the physical separation of automated guided vehicles

Róbert Skapinyecz — Fri, 14 Jul 2023 00:00:00 +0200

Nowadays, in parallel with the rapid spread of modern automation and digitalization solutions, different autonomous systems are playing an increasingly important role in the field of industry and logistics, a classic example of which is the case of automated guided vehicles (AGVs). Although these devices have been in use for a long time in the aforementioned areas, at the same time, in parallel with the progress of automation in the recent period, in many cases they can be seen more and more as autonomous mobile robots (AMRs), which perform the tasks assigned to them with a high degree of independence. At the same time, issues such as the problem of preventing collisions between individual freely moving vehicles in industrial environments naturally come to the fore. The purpose of this publication is to provide an example for the structure of some simpler rule-based algorithms in response to the former question, which may be relevant in terms of avoiding some potential collision situations of lower complexity. The operation of the algorithms was represented using the Siemens Tecnomatix Plant Simulation discrete event simulation software.

Developing a vaccine distribution network between county towns

Kitti Seprényi, Péter Veres, Ákos Cservenák — Fri, 14 Jul 2023 00:00:00 +0200

Without the cold-chain network, it would be impossible in today's world to transport large quantities of perishable goods, primarily food and medicine, over long distances, but it is still very important that the necessary materials reach their destination on time and with adequate cooling. This is absolutely true for the vaccines created to stop the Covid-19 pandemic, which had to be distributed quickly and at certain storage temperatures to all parts of the world. This is a rather difficult task with NP-hard complexity. In this research, we are investigating the optimal way to get from a distribution center in Budapest to the county towns with transport vehicles, so that neither the vaccines deteriorate, nor we violate regulations. For this, we used vehicle route planning principles and Excel-Solver software.

Increasing possibilities of the reliability of logistic processes

Péter Telek — Fri, 14 Jul 2023 00:00:00 +0200

A very important word of our days is the consumption, which requires the general availability and low price of the goods, however it causes significant changing in the reliability of the different devices and appliances, especially in industrial aspects. There are also important role of the reliability in the logistic processes, but not only at the technical side, it appears also in different logistic activities. In this paper, an overview is presented about the logistic aspects of the reliability, outlining those elements and development possibilities which can help to increase the reliability of the logistic equipment and logistic systems.

Introduction of vehicle communication and intelligent traffic management systems

Dávid Makó, Ákos Cservenák — Fri, 14 Jul 2023 00:00:00 +0200

Nowadays, the vehicle industry is heading for a significant change. There are fundamental debates about what type of drive would be ideal for vehicles in terms of environmental awareness, because environmental protection has become one of the main directions in vehicle production, especially due to the fluctuating raw material sources in today's uncertain situation. Another issue that is at least as important is traffic safety. Almost everyone agrees that the way to safer traffic is mainly through the development of vehicle communication. This is a direction that develops in all vehicles, regardless of drive, construction, or performance. There are several types of vehicle communication systems, but it is not easy to categorize these systems, as it is difficult to clearly separate them, as there are quite large overlaps between them. This article provides an overview of these vehicle communication systems.