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A three-phase AC-DC converter is proposed to charge the battery or DC-link of Wireless Electric Vehicles (WEVs). The topology uses a current-feed, single-output matrix converter and a high frequency (HF) transformer together with an H bridge to obtain regulated DC output voltage, such that the galvanic isolation of the transformer may be used as the wireless link. The converter uses a variant of a...
Model Predictive Control (MPC) becomes more prevalent in power converters due to its faster response in tracking the reference values of the controlled variables. In this paper, the MPC is applied on the Switched-Inductor quasi Z-Source Inverter (SL-qZSI) topology. The MPC modeling for the capacitor voltage, inductor current, and output load current of the topology are designed to predict their values...
This paper presents an efficient monitoring solution for greenhouses. The solution implements the Wireless Sensor Network (WSN) monitoring system and then expands the monitoring concept to an Internet of Things (IoT) solution, by employing 3G access, web services, database and a web interface for user interaction. The main advantage of this modular monitoring system relies on the fact that the End-Devices...
Wireless communication is currently the trend in industrial environments, reducing costs and allowing the creation of applications that were impossible with legacy technologies. In this respect, the WirelessHART specification is emerging as a standard solution. Despite the direct benefits, a WirelessHART network exhibits a series of technical (reliability, energy consumption, tolerance to failures,...
Wireless Sensor Network (WSN) is an emerging technology which has been employed recently in various applications such as healthcare systems, environmental monitoring, military and industrial applications. This is due to the easy deployment and (re)configuration of the sensor nodes in the environment. It also has the potential of being integrated into the distributed manufacturing systems particularly...
The application of Wireless Sensor Networks (WSN) in industrial environments, with strict requirements of latency and data integrity, is a challenging topic for which IEEE 802.15.4e provides some MAC layers targeted to fulfill these requirements. While much work has been done to reduce the worst-case latency, little effort has been put in analyzing the setup procedures of the network, which can be...
The digital current control method of switching converters studied in this work is based on taking more than one sample per switching period of the instantaneous current error waveform. To correctly regulate the average current value, as well as to simplify the system model, the controller must include a ripple filter. The proposed system includes a new low-phase-lag ripple filter. The whole system...
Ethernet field bus has been designated as CAN successor both in automotive and agricultural applications by many international councils because of its high throughput and of the possibility to reuse standard technologies like the TCP/IP stack for a better integration with Internet of Things paradigm. This paper would like to present an essential element for the coexistence of this nets, necessary...
Networked medical devices and health information services are becoming increasingly widespread. The requirements for assuring the system's suitability, safety and security are discussed and an example is presented for a networked medical sensor application and the assurance aspects it illustrates. In a workshop that was based on the example, key issues such as distribution of responsibilities, multiple...
Wireless Sensor and Actuator Networks has become an important area of research. They can provide flexibility, low operational and maintenance costs and they are inherently scalable. In the realm of Internet of Things the majority of devices is able to communicate with one another, and in some cases they can be deployed with an IP address. This feature is undoubtedly very beneficial in wireless sensor...
This work presents the conclusions of an experimental study that intends to find the best procedure for reducing the noise of medium resolution infrared images. The goal is to find a good scheme for an image database suitable for use in developing a system to aid breast disease diagnostics. In particular, to use infrared images in the screening and postoperative follow-up in the UFF university hospital,...
In this paper, an industrial Wireless Local Area Network (iWLAN) solution applied to control industrial robots (iRBs) in the factory automation (FA) environment is addressed. The fast and safety are the goals of our proposed system. The first proposal is an advanced round-robin iWLAN transmission protocol whose operation is strictly controlled by a precise synchronous scheduling mechanism. The second...
This paper proposes a fuzzy logic based algorithm which decides the best telescope, within a heterogeneous network, taking into account user constraints, weather forecast, visibility and statistical information from every telescope. The main objective of this algorithm is to serve the maximum number of observations as soon as possible, minimizing the reallocation process and improving the selection...
In this paper, automatic separation of hybrid system models for industrial automation systems is considered. The proposed method facilitates efficient separation of systemlevel models into component-level models. Such component-level models allow for model-based diagnosis, since a close relation exists between anomalies on a component-level and fault causes. The approach is based on the concept of...
The Internet of Things (IoT) paradigm envisions an interconnected world where things can communicate with each other, transmit state information and execute smart tasks. The number of devices connected in Internet has been growing exponentially in the past years and the Machine-to-Machine (M2M) plays a major role in enabling IoT paradigm while it is expected that in the near future billion of devices...
Adaptive rood pattern search (ARPS) algorithm is a famous block matching motion estimation algorithm with a good performance. ARPS compared to diamond search (DS) algorithm is faster with almost similar quality (PSNR). ARPS in addition to four blocks that form arms of the rood pattern, searches the block that is predicted by the motion vector of left neighboring block as initial points. In order to...
Future manufacturing systems are required to be adaptable and react quickly on changes in markets and demands. Additionally, they should be able to support individualized products that are tailored to customer needs. Flexibility can be increased through decoupling product descriptions from manufacturing systems. Production processes are no longer described based on available resources. Instead, a...
The article deals with an assumption that application of advanced technologies in manufacturing firms brings them higher ability to face up to problems linked with economic crises. It means that manufacturing firms-users of advanced technologies should have the better economic results than manufacturing firms, non-users of advanced technologies. The assumption was tested on the base of results of...
Multivariate Statistical Process Control (MSPC) techniques require process stationarity as a main rule for design and monitoring. However, a critical process such as Boiler and Turbine-Generator units of Thermoelectric Power Plants, which is a multivariable complex system, features different types of non-stationary behavior and operational modes with constant changes of set points of key performance...
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