Network Resource Management For Cyber-Physical Production Systems Based On Quality of Experience

In today's industrial challenges, it can be observed that the trends point in the direction of agile, wireless connected robots where elements of intelligence and control are implemented in the edge cloud. This paper outlines the roles of three key participants in the value chain of an industrial process: the network provider, the robot operator, and the customer. It proposes a scheme where the Quality of Service (QoS) parameters of the robot are fed into the network to inform network resource management. A sanding process use case is simulated to demonstrate the relationship between QoS and Quality of Experience (QoE) for each participant, quantitatively

FATHER: FActory on THE Road

In most factories today the robotic cells are deployed on well enforced bases to avoid any external impact on the accuracy of production. In contrast to that, we evaluate a futuristic concept where the whole robotic cell could work in a moving platform. Imagine a trailer of a truck moving along the motorway while exposed to heavy physical impacts due to maneuvering. The key question here is how the robotic cell behaves and how the productivity is affected. We propose a system architecture (FATHER) and show some solutions including network related information and artificial intelligence to make the proposed futuristic concept feasible to implement.Comment: In Proc., 35th European Simulation and Modelling Conference, Oct 27-29, 202

Information and Communication Technologies: 18th EUNICE/ IFIP WG 6.2, 6.6 International Conference, EUNICE 2012, Budapest, Hungary, August 29-31, 2012. Proceedings

International audienceBook Front Matter of LNCS 747

Optimizing Camera Stream Transport in Cloud-Based Industrial Robotic Systems

Combining visual-guided robotics with cloud networking brought a new era into industrial robotic research and development. New challenges have to be tackled with a focus on providing proper communication and data processing setup: sensor data processing as well as the control software should be decoupled from the local robot hardware and should move into the cloud. In the emerging field of cloud robotics, there are trade-offs that have to be handled. More and more sensors such as cameras are being integrated but it comes with a cost. All sensory data have to be sent through often limited networking resources, while latency must be kept as low as possible. In this paper we propose a general solution for efficient camera stream transportation in cloud robotic systems. After introducing our test scenario with the used hardware and software elements, a detailed overview of the architecture is presented with describing each task of the components. The goal of this paper is to examine the current stream transportation implementations in ROS environment and implement a more efficient method. The performance of the proposed method is investigated and compared with other solutions evidenced by measurements

Game Theoretic Analysis of Network Dimensioning Strategies in Differentiated Services Networks

Abstract—In the future Internet, introducing service differentiation the quality guarantees seem to have more importance. Beyond the basic performance parameters such as loss probability, delay, jitter, etc., the QoS network dimensioning problem requires the knowledge of the total utility experienced by the users. Considering the users as players competing for the network resources, the Game Theory seems to be a useful tool for describing the behavior of the system. Applying the rules of the noncooperative games where the players are selfish and act individually, Nash equilibria can be used to determine the “rest points ” of the system. Analyzing these points by calculating the overall utility gained by the users and the overall income of the network operator, different network dimensioning strategies can be evaluated. This paper introduces evaluation of typical dimensioning strategies in different domain control setups with diverse user expectations in terms of QoS and price

Absolute QoS Guarantees in a Relative Differentiated Services Architecture

Abstract. In this paper we propose a new architecture that provides absolute QoS guarantees for the users, requires only per-class state at the edges of the network, generates only a small amount of overhead, and uses relative differentiated services architecture inside the domain. In our proposal the service provider offers a smaller number of classes for the end-users (or for other ISP-s) with absolute quality of service guarantees. Inside the domain relative service differentiation is used with a larger number of inner classes. The main idea is that the edge nodes assign a new inner class to the incoming packets considering the actual load of the domain in order to provide absolute QoS guarantees. The performance analysis of this architecture is carried out by simulation.