The digital twin (DT) is a virtual representation of physical object, which has been proposed as one the key concepts for Industry 4.0. DT provides products along their lifecycle that enables prediction and optimization behavior production system its components. A methodology design using model-driven engineering (MDE) strives toward being both flexible generic. This approach presented at two levels: first, modeled composition basic components provide functionalities, such identification,...

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

Multimodal biometric systems have consistently presented better recognition rates when compared to the unimodal that compose them. A common claim is they also provide higher security since an intruder would successfully break into more than one biometrical system. We argue this may not be true due two main reasons: a multimodal system has number of vulnerable points explored by intruder, and attacking only subset systems. In particular, we investigate composed face fingerprint under...

A multitude of factors, including accidents, chronic illnesses, and conflicts, contribute to rising global amputation rates. The World Health Organization (WHO) estimates that 57.7 million people lived with traumatic limb amputations in 2017, many lacking access affordable prostheses. This study presents a preliminary framework for low-cost, electromyography (EMG)-controlled upper prosthesis, integrating 3D printing EMG sensors enhance accessibility functionality. Surface electrodes capture...

Welding is a process recognized by the laborious work and hazardous environment it takes place, but an important in different industrial scenarios, like shipbuilding industry. The use of robots has been increasing recent years, reducing human interference necessary for process. This paper proposes system automated seam tracking geometric welding bead analysis systems based on passive monocular vision. Using vision attached to linear robot, images gap between two plates are acquired, during...

Challenging ground truth and standardized metrics are a mandatory requirement for the development evaluation of computer vision algorithms. Despite significant amount publications on video based fire detection research it remains difficult to compare different algorithms due lack common schemes datasets. We address both these issues by presenting new dataset videos containing frame annotations which may be used non-stationary evaluation. The includes hand-held, robot attached drone footages...

Machine Vision applied in the area of Instrumentation and Measurement is known as Based Measurement. Its application industry steadily increasing principally due to recent developments computer hardware vision algorithms. In this article we discuss possibilities combining industrial local sensors with a camera computer, thus obtaining new type transmitter based Vision. The possibility transforming visual information into digital data, which can be readily available an network, opens variety...

Digital technologies are changing the way people interact with world. The Twin (DT) is one of key enablers Industry 4.0. It provides a virtual representation an observable element real These elements can be both physical objects such as devices or non-physical interactions and processes. Digitalization world enables new business models, transforming traditional products into services, for instance, Car-as-a-Service (CaaS). To integrate all components that will part systems like CaaS Smart...

Welding is an important process in several industries and it required precision attention during the execution. In addition unhealthy work for operator who direct contact with sparks, smoke electricity. Thus, increasingly common to use robots this type of task, reducing human intervention process. This proposes automated system verify discontinuities weld beads, which may invalidate them. Through a linear welding robot vision system, images pre-welding post-welding metal plates are captured...

The use of robots is increasing in different industries, as the case large metal structures. mobile meets needs these industries: it can be easily moved production line, with gains repeatability and process efficiency, reducing rework costs. poor configuration robotic welding system generates problems internal structure surface weld, thus compromising final quality piece. Visual inspections are common to identify that may have occurred during processes. Inspections x-rays, ultrasound, or...

This paper proposes an automatic fire detection system that is able to work with both stationary and non-stationary video achieving a 91.90% accuracy using color, texture shape information. As extension prior approaches in the video-based field, proposed replaces use of threshold-driven color spectroscopy trained classifier, resulting better segmentation. From color-classified regions, non-temporal features are extracted used as input Random Forests classifier. Using standardized metrics...

─Smart City is one area of application for the Internet Things (IoT) and it has been attracting attention from both academia industry. Cities will be composed by autonomous parts that communicate provide services to each other. For instance, cars (autonomous or not) may seen as a service transports people point another. Interactions between users these kinds grow, making necessary have digitization all Smart City. The Digital Twin (DT) concept proposes real-world assets virtual...

Digital Twin (DT) is one of the key concepts in industry 4.0. Through Internet Things (IoT), it brings ability having a virtual representation real-world element which enables many possibilities such as saving and tracking its life-cycle, perform simulations, learning based on all this data so on. However, still an ongoing concept that continuously being evolved. Therefore, well defined topology how DT can be build needed. In context, paper specifies six ways different kind applications....

In this paper, we explore new methods to improve the modeling of facial images under different types variations like pose, ambient illumination and expression. We investigate intuitive assumption that parameters for distribution change smoothly with respect in face pose angle. A Markov Random Field is defined model a smooth prior over parameter space maximum posteriori solution computed. also propose extensions view-based recognition method by learning how traverse between subspaces so can...

In highly scaled nano-CMOS devices, soft errors and aging defects are a design concern. Online detection of is necessary to address such errors. For online error in microprocessors, redundant execution the entire pipeline has been studied. Software solutions for re-execution impose significant performance penalty due competition resources between main threads, while hardware implementations incur large area overhead. Previously, researchers have proposed alternative low-cost mechanisms...

The generation of handwriting is a complex task. In order to accommodate for the large variations involved in handwritten words deformable templates need be used. this paper we propose model, based on Active shape modeling (ASM). two-step process, template-based ASM generates characters and Gaussian mixture regression (GMR) model concatenates generated characters. For real time cursive an adaptation Global local approximation (GLA) methodology used fit models.

The paper presents an infrastructure to test the functionality of specific architectures output by a highlevel compiler targeting dynamically reconfigurable hardware. It results in suitable scheme verify generated compiler, each time new optimization techniques are included or changes performed. We believe this kind is important verify, functional simulation, further research techniques, as far compilation field-programmable gate array (FPGA) platforms concerned.