An Integrated Cyber-Physical System for Cloud Manufacturing

2014 ◽  
Author(s):  
Lihui Wang ◽  
Robert Gao ◽  
Ihab Ragai
Keyword(s):  
Physical System ◽  
3D Models ◽  
Cloud Manufacturing ◽  
Sensor Data ◽  
Robotic Assembly ◽  
Cyber Physical System ◽  
Network Bandwidth ◽  
Assembly Cell ◽  
Monitoring Process

This paper presents an integrated cyber-physical system for remote accessibility and controllability of factory equipment, e.g. CNC machines and robots. It is enabled by combining 3D models, sensor data and camera images in real-time. The aim of this research is to significantly reduce network traffic for much improved accessibility and controllability of any cyber-physical systems over the Internet. The ultimate goal is to build cloud-based services of monitoring, process planning, machining and assembly in decentralised environment. This paper covers the basis of the approach, system architecture and implementation, and a case study of remote control of a robotic assembly cell. Compared with camera-based systems, our approach consumes less than 1% of its network bandwidth, feasible and practical as a future cloud-based solution.

scholarly journals An Agent-Based System for Automated Configuration and Coordination of Robotic Operations in Real Time—A Case Study on a Car Floor Welding Process

2020 ◽  
Vol 4 (3) ◽  
pp. 95
Author(s):  
Sotiris Makris ◽  
Kosmas Alexopoulos ◽  
George Michalos ◽  
Andreas Sardelis
Keyword(s):  
Real Time ◽  
Welding Process ◽  
Real Data ◽  
Robotic Assembly ◽  
Production Environment ◽  
Agent Based ◽  
Manufacturing Operations ◽  
Assembly Cell ◽  
Production Automation

This paper investigates the feasibility of using an agent-based framework to configure, control and coordinate dynamic, real-time robotic operations with the use of ontology manufacturing principles. Production automation agents use ontology models that represent the knowledge in a manufacturing environment for control and configuration purposes. The ontological representation of the production environment is discussed. Using this framework, the manufacturing resources are capable of autonomously embedding themselves into the existing manufacturing enterprise with minimal human intervention, while, at the same time, the coordination of manufacturing operations is achieved without extensive human involvement. The specific framework was implemented, tested and validated in a feasibility study upon a laboratory robotic assembly cell with typical industrial components, using real data derived from a car-floor welding process.

scholarly journals Determinism in Cyber-Physical Systems Specified by Interpreted Petri Nets

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5565 ◽  
Author(s):  
Remigiusz Wisniewski ◽  
Iwona Grobelna ◽  
Andrei Karatkevich
Keyword(s):  
Petri Nets ◽  
Physical System ◽  
Real Life ◽  
Cyber Physical System ◽  
Deterministic System ◽  
Sensors And Actuators ◽  
Formal Definitions ◽  
Modelling Methodology ◽  
Control Part

In this paper, we study selected aspects of determinism in the control part of a cyber-physical system (CPS) that is specified by a Petri net-based model. In particular, the control interpreted Petri nets (CIPNs) are applied, which are an extension of the ordinary Petri nets, supplemented by signals (related to sensors and actuators) that permit communication with the environment. The notions of weak and strong determinism in a system described by a CIPN are introduced in the paper. The proposed concepts are supported by formal definitions and theorems. Moreover, a novel modelling methodology for a deterministic system specified by a CIPN is proposed. The presented solutions are illustrated by a case study example of a real-life cyber-physical system. Finally, the results of experimental verification of the proposed determinism-based techniques are demonstrated and discussed.

Model-based documentation of dynamicity constraints for collaborative cyber-physical system architectures: Findings from an industrial case study

2019 ◽  
Vol 97 ◽  
pp. 153-167 ◽  
Author(s):  
Jennifer Brings ◽  
Marian Daun ◽  
Torsten Bandyszak ◽  
Vanessa Stricker ◽  
Thorsten Weyer ◽  
...  
Keyword(s):  
Physical System ◽  
Cyber Physical System ◽  
Industrial Case Study ◽  
System Architectures ◽  
Model Based

Framework, Design and Simulation of a Cyber-Physical System for Public Security Applications

2013 ◽  
Vol 664 ◽  
pp. 1035-1040
Author(s):  
Wei Meng ◽  
Zu De Zhou ◽  
Qing Song Ai ◽  
Quan Liu ◽  
Ling Chen
Keyword(s):  
Physical System ◽  
Hybrid Approach ◽  
Physical World ◽  
Public Security ◽  
Cyber Physical System ◽  
Simulation Experiments ◽  
Security Applications ◽  
Framework Design ◽  
Environment Perception

Cyber-physical system (CPS) is a multiple system where physical world operations are monitored and controlled by communication and computing components. This paper focuses on the framework, design and simulation of a CPS for public security applications. A framework of the CPS is presented, and its compositions are analyzed in detail. To meet the requirements of cyber-physical control, the design features of environment perception and communication are investigated. An improved task allocation method and a hybrid approach for path planning are introduced for robots coordination and optimization. Finally, the CPS is demonstrated with a case study in a public security scenario, where robots equipped with sensors cooperate with each other to extinguish fires arising due to a disaster. The simulation experiments are conducted to show the feasibility of such system.

scholarly journals Human-centred Assembly: A Case Study for an Anthropocentric Cyber-physical System

2014 ◽  
Vol 15 ◽  
pp. 90-98 ◽  
Author(s):  
Constantin-Bala Zamfirescu ◽  
Bogdan-Constantin Pirvu ◽  
Dominic Gorecky ◽  
Harish Chakravarthy
Keyword(s):  
Physical System ◽  
Cyber Physical System
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