Hierarchical Varying Receding-Horizon Policy: A New Production Control Policy for Hybrid Stochastic Production Systems

2006 ◽  
Author(s):  
Chunyue Song
Keyword(s):  
Production Control ◽  
Production Systems ◽  
Control Policy ◽  
Receding Horizon ◽  
New Production ◽  
Stochastic Production

scholarly journals Evaluation of Manufacturing Process Performance by CONWIP Hybridization of Pull Controlled Production Systems

2018 ◽  
Vol 144 ◽  
pp. 05006
Author(s):  
O. Srikanth ◽  
A. V. Sita Rama Raju ◽  
B. V. Ramana Murty
Keyword(s):  
Control System ◽  
Production Control ◽  
Production Systems ◽  
Control Policy ◽  
Line Production ◽  
Event Simulation ◽  
Work In Process ◽  
Multi Stage ◽  
Modeling Analysis ◽  
Kanban Control

The main objective of this paper is pioneering an innovative tactic for the synchronization of multi-stage, multi-line, production system. This tactic is mainly depends on the optimization policy, by means of distinct event simulation process for modeling, analysis and distinction of the execution of two alternatives of Kanban control mechanism namely SEKCS (Simultaneous Extended Kanban Control System) and IEKCS (Independent Extended Kanban Control System). At this juncture the authors putting forward the two variants of Extended Kanban control system with the hybridization of CONWIP control policy to incite HSEKCS (Hybrid Simultaneous Extended Kanban Control System) and HIEKCS (Hybrid Independent Extended Kanban Control System) to make use of pooled benefits of a representative production situation in addition to improve the outcome. Therefore in this study the comparison in between different systems of proposed HEKCS specifically are HSEKCS and HIEKCS compared with the Extended Kanban Control Systems variants SEKCS and IEKCS. Simulation studies were conducted for all the five control policies considered and modeled on a multi-line, multi-stage assembly production control system. The relative performance parameters like Throughput or Production rate, Average Waiting Time and Average Work-in-Process, were assessed by means of exponentially varying demands.

scholarly journals Decentralized Multi-Agent Production Control through Economic Model Bidding for Matrix Production Systems

Procedia CIRP ◽  
2021 ◽  
Vol 96 ◽  
pp. 3-8
Author(s):  
Marvin Carl May ◽  
Lars Kiefer ◽  
Andreas Kuhnle ◽  
Nicole Stricker ◽  
Gisela Lanza
Keyword(s):  
Economic Model ◽  
Production Control ◽  
Production Systems ◽  
Multi Agent ◽  
Matrix Production

scholarly journals Simulation von Cyber-Physischen Produktionssystemen in einer Forschungsinfrastruktur

2020 ◽  
Author(s):  
Iris Gräßler
Keyword(s):  
Communication Technology ◽  
Information Acquisition ◽  
Industry 4.0 ◽  
Production Control ◽  
Production Systems ◽  
General Concept ◽  
Radio Network ◽  
Systems Research ◽  
Digital Twins ◽  
Cyber Physical Production Systems

The article describes the setup of an experimentation and validation environment by extending a production laboratory: All relevant elements of the production laboratory were equipped with computer systems, so-called "industry 4.0 boxes", and interconnected via a peer-to-peer radio network. The "industry 4.0 boxes" are used to upgrade dedicated sensors for recording machine behaviour and communication technology to be integrated into decentralized production control. In addition, digital twins were implemented to map machine and user behaviour, enable control and support information acquisition and processing. Thereby, a research infrastructure is created for research on potentials of cyber-physical production systems. Research outcomes will be used as a decision basis for companies and for validation of production optimizations. This paper describes the concept and implementation of industry 4.0 functionalities and derives a general concept of simulation platforms for CPPS.

scholarly journals Building the fashion’s future: How turn textiles’ wastes into ecological building products

2020 ◽  
Vol 13 (2) ◽  
pp. 284-293
Author(s):  
Roberto Giordano ◽  
Elena Piera Montacchini ◽  
Silvia Tedesco
Keyword(s):  
Production Systems ◽  
Point Of View ◽  
New Production ◽  
Working Paper ◽  
Research Activities ◽  
Upstream Process ◽  
Physical Performances ◽  
Materials Used ◽  
Ecological Building ◽  
Systemic Design

The textile system is one of the most influential production activities at a global level from an environmental point of view, both in relation to the processes that characterize the supply chain and in relation to pre and post-consumer waste. It produces million tons of global greenhouse gas emissions per year and it consumes millions of litres of water; it uses million tons of chemical products. Furthermore, millions of tons of special textile wastes are yearly landfilled in upstream process as well as in downstream process. Less of 1% of materials used to produce clothes becomes part of a closed-loop recycling and less of 2% are recycled in other industrial activities. Changing the textile industrial linear model in a circular one according to Systemic Design principles is advisable, starting from wastes and by-products. As proved in the working paper wastes, due to their properties, can assumed as inputs of new production systems. Particularly the scientific contribution deals with some research activities carried out within a project titled EDILTEX - Innovation for reusing in textile companies. The achievements are described, showing that construction and fashion are fields only apparently far from each other. They can - on the contrary - developing powerful synergies and products with interesting technological and physical performances.

Digitale Produktion und intelligente Steuerung/Digital Production and Intelligent Production Control – Integrating digital and real-world production for adaptive and automated control

2020 ◽  
Vol 110 (04) ◽  
pp. 255-260
Author(s):  
Marvin Carl May ◽  
Andreas Kuhnle ◽  
Gisela Lanza
Keyword(s):  
Production Control ◽  
Production Systems ◽  
Industrie 4.0 ◽  
World Production ◽  
Production Planning And Control ◽  
Automated Control ◽  
Planning And Control ◽  
Digital Production ◽  
Digitale Modelle ◽  
And Control

Im Rahmen der stufenweisen Umsetzung von Industrie 4.0 erreicht die Vernetzung und Digitalisierung die gesamte Produktion. Den physischen Produktionsprozess nicht nur cyber-physisch zu begleiten, sondern durch eine virtuelle, digitale Kopie zu erfassen und zu optimieren, stellt ein enormes Potenzial für die Produktionssystemplanung und -steuerung dar. Zudem erlauben digitale Modelle die Anwendung intelligenter Produktionssteuerungsverfahren und leisten damit einen Beitrag zur Verbreitung optimierender adaptiver Systeme.   In the wake of implementing Industrie 4.0 both integration and digitalization affect the entire production. Physical production systems offer enormous potential for production planning and control through virtual, digital copies and their optimization, well beyond purely cyber-physical production system extensions. Furthermore, digital models enable the application of intelligent production control and hence contribute to the dissemination of adaptively optimizing systems.

scholarly journals Approach for an event-driven production control for cyber-physical production systems

Procedia CIRP ◽  
2019 ◽  
Vol 79 ◽  
pp. 349-354 ◽  
Author(s):  
Christoph Berger ◽  
Alexander Zipfel ◽  
Stefan Braunreuther ◽  
Gunther Reinhart
Keyword(s):  
Production Control ◽  
Production Systems ◽  
Event Driven ◽  
Cyber Physical Production Systems
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