Danúbia Espíndola

A model-based approach for data integration to improve maintenance management by mixed reality

Facilitating interaction with maintenance systems through intuitive interfaces is a competitive advantage in terms of time and costs for industry. This work presents the CARMMI approach, which aims to integrate information coming from CAx tools, mixed/augmented reality tools and embedded intelligent maintenance systems. CARMMI aims to provide support to operators/technicians during maintenance tasks through mixed reality, providing an easier access, understanding and comprehension of information from different systems. Information about where, when and which data will be presented in interface are defined by CARMMI. The paper presents three test cases that were performed using the proposed concepts and infrastructure. The main benefit of the approach is to provide an extensive and generic model for the integration and management of maintenance data through the use of CARMMI.

Visualization tool for cyber-physical maintenance systems

Intelligent Maintenance Systems (IMS) are data acquisition/analysis systems for predictive maintenance. The IMS provide autonomously (or semi-autonomously) diagnoses, prognostics and health assessment of components. In these systems, factors such as data acquisition and visualization from equipments are very important. In this context, this study has used a Cyber-Physical Systems (or CPS) approach to consider the various aspects present into a maintenance environment. The CPS is a new paradigm that seeks to combine and coordinate physical and computational elements. In this paper, we propose a 2D/3D visualization tool for cyber-physical maintenance environments. This tool works under HTTP protocol and makes possible the real-time visualization and remotely access, allowing users to view, to edit and to access the maintenance data via web browser.

Innovating Product-Service Systems Through Augmented Reality: a Selection Model

Within PSS context, after-sale services, including technical services play a key role. To improve the performances of these services, due to the increasing installed base and product complexity, companies must provide dispersed field workers with information needed to perform tasks. However, to transfer information, the display mode that can affect tasks efficiency, up to now is scarcely considered. In this context, Augmented Reality technology, in its several aspects, gives its contribution, facilitating information display and collaboration with remote users. This paper proposes a selection model with the aim of guiding managers in selecting the AR solution most suitable for their field service context.

Using Mixed Reality in the Visualization of Maintenance Processes

Abstract The integration of the maintenance systems and mixed reality techniques discussed here focuses on the development of data visualization. The mixed visualization will allow assist the operator during maintenance tasks through the overlap of virtual components in real scene, making possible the operator to work in safe and accurately way in the mixed environment of industrial maintenance.

Technical and Organizational Issues about the Introduction of Augmented Reality in Maintenance and Technical Assistance Services

Augmented Reality (AR) is an emerging technology that can provide support to the provision of maintenance and technical assistance services by dispersed technicians, who are not convenient skilled to deal with the increasing complexity of modern products. This paper, through a case study in an industrial context, presents the main technical and organizational challenges that have to be faced in order to introduce AR in the delivery process of maintenance services.

Visualising the digital twin using web services and augmented reality

As the number of network connected devices in an industrial system increases, the management and handling of all the information generated become a challenge. In this work we explore concepts of Cyber-Physical System model the virtual part of industrial devices (sensor, machines, CLPs) using the Digital Twin concept and propose an architecture based on web services for accessing their data. We present a case study where an Augmented Reality system access the Twin Model data via web services and display real-time information to the user. Moreover, we present a review of how the involved concepts, which have a strong computational background, relate to industrial applications and how they can expand the possibility of services and business models.

Including operator's skill and environment conditions in IMS

This study intends to consider the operator skill and the environment conditions as variables of Intelligent Maintenance Systems (IMS). In this sense maintenance operations associated with the technical skills and environment factors through sensory perception can represent important strategy to improve the IMS. This approach considers the Cyber-Physical Systems (or CPS) paradigm to acquire human and context factors once that CPS system combines coordinates physical and computational elements. Thus this study proposes the CPS use for taking account the operators skill and environment conditions for maintenance strategies. This proposal aims the developing of Advanced Human Computer Interface for Intelligent Maintenance Systems that consider the operators skill and environment. The validation will be accomplished by interface named Toogle where two case studies will be tested.

IM:MR - A tool for integration of data from different formats

The tool IM:MR is a system for integration of data originating from Intelligent Maintenance (IM) and Mixed Reality(MR) systems. The motivation for the development of this solution is to facilitate the predictive data visualization in order to contribute with the downtime reduction in critical equipments of the industry. Through of IM:MR tool use, the operator can be guided during maintenance task. In this sense are integrated CAD data, virtual components (MR data) and several signs from IM systems. This study presents an introduction, contextualization and related works supplying subsidies to the understanding of this proposal. Finally, the tool, the experiments, conclusions and future perspectives are presented.

Human Computer Interface (HCI) for Intelligent Maintenance Systems (IMS): The Role of Human and Context

This paper deals with advanced computational techniques for taking account the human factors in Intelligent Manufacture Systems. A Cyber-Physical Systems (or CPS) is a system that combines and coordinates physical and computational elements. The CPS incorporates the ability to act in the physical world with the intelligence of cyber world to add new features to real-world physical systems [1]. Among the various fields of activity of the CPS, can cite security systems, robotics, education, among others. Industrial environments are characterized by being favorable places for the introduction of technologies aimed to facilitate the interaction/mediation between human and machines. In this paper, we propose to use CPS for taking account human factors in Maintenance Estrategies. The proposal, called TOOGLE-IMS, aims at developing a Human Computer Interface (HCI) for Intelligent Maintenance Systems (IMS).

Proposta de um Arcabouço Metodológico para a Autoria de Conteúdo em Ambientes Imersivos de Ensino

O presente artigo tem como objetivo a busca de metodos que facilitem e difundam o uso de ambientes imersivos atraves da convergencia de tres conceitos: mundos virtuais tridimensionais, imersao e a representacao do aluno por meio de um avatar digital. O levantamento acerca do ferramental utilizado na autoria de conteudos para ambientes imersivos de ensino levaram ao reconhecimento das etapas para a criacao destes ambientes e culminaram na proposta de um arcabouco metodologico de carater generico para a autoria. Esta proposta foi aplicada a um desenvolvimento experimental como forma de reconhecimento de suas possibilidades e abrangencia.