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During the last years, the installation of Distributed Energy Resources (DERs) and the expected diffusion of Electrical Vehicles (EVs), is increasing the complexity of the distribution grid, making the management of the grid operated by Distribution System Operators (DSOs) more difficult. The Smart Grid approach tries to provide a response to these troubles, by means of a strong interaction between...
Internet of Things (loT) aims at collecting data from billions of devices connected altogether. Despite there is no one technology able to cope with all possible scenarios, LPWAN solutions are emerging as viable technologies for implementing private, low-cost cellular like wireless networks. Distributed systems could leverage this approach as a driving technology for services as smart environment...
Causal relationship between physical activity and prevention of several diseases has been known for some time. Recently, attempts to quantify dose-response relationship between physical activity and health show that automatic tracking and quantification of the exercise efforts not only help in motivating people but improve health conditions as well. However, no commercial devices are available for...
Traditional healthcare solutions oblige patients to stay in hospital; bio-signal monitoring and treatment dosing require the presence of specialized personnel. In turn, this scenario implies high-cost, especially for chronic diseases or fragile people surveillance. Wearable sensor-based healthcare solutions may be an effective approach for lowering costs, since they offer good performance and can...
Detection of R-peaks in an electrocardiogram (ECG) acquisition is the primary goal of any algorithm for the automatic processing of ECG signals. Several methods have been proposed in the past to accomplish this task, but usually they are designed for the use in clinical situations, where strict real-time requirements are not always needed and availability of devices with high computational resources...
The monitoring of vital parameters for athletes of all disciplines is becoming more and more essential, to improve performances and to ensure a constant control of athletes' physical conditions, thus preventing health risks and injuries. However, especially in amatorial competitions, the low available budget limits leads to the use of inexpensive and thus ineffective instrumentation. In this paper,...
Smart Grids require a pervasive communication network to interconnect their intelligent devices (e.g. generators, protections, and meters) that are usually distributed over a wide area. Recently, the Long Term Evolution (LTE) wireless cellular network communication technology has been introduced and its diffusion is rapidly increasing. As a consequence, LTE may be considered as a viable opportunity...
LF and VLF (very low frequency) wireless links have long been used to perform time and frequency dissemination. Indeed, several standard time services exploiting (V)LF signaling are continuously transmitting in many locations around the world, despite they face the competition from the Global Positioning System (GPS), which offers an higher clock synchronization accuracy. In fact, (V)LF signaling...
Wireless Sensor Networks (WSNs) are increasingly deployed in office blocks, residential areas and also industrial locations, thanks to advantages in terms of flexibility and scalability. Nowadays available wireless fieldbuses are widely adopted for process monitoring and offer performance comparable with the wired counterparts, despite they still are more sensitive to interference from external sources...
This paper proposes the use of Synchronous Ethernet in networks with multiple paths for the synthesis of a precise frequency reference for distributed measurement systems. The paper presents novel approach based on a Kalman filter with outlier identification and removal followed by a linear quadratic regulator (LQR). The algorithm, to be implemented within a network element, is able to synthetize...
The wider and wider availability of powerful, low-cost mobile devices (e.g., smartphones or tablets) is deeply changing healthcare, so that the mHealth term has been coined. The announcement of healthcare projects by market big players as Apple and Samsung confirms this trend. In particular, the opportunity to collect reliable patient data automatically allows to enhance patient/user self-management...
Despite the increasing adoption of smart meters, especially for electrical power measurements, a very large number of utility inspectors manually execute readings of legacy analog meters (e.g., for gas or water utilities). Unfortunately, manual data collection generates a lot of paperworks and is clearly error prone. In this work, authors suggest the adoption of smartglasses to automatize this process...
The joint use of clock synchronization and syntonization can provide extremely high accuracy in industrial and telecom applications. However, in typical implementations of Synchronous Ethernet , only one frequency source at a time is selected for node syntonization (even in the presence of redundant networks with multiple paths), thus losing useful information. In this paper, an algorithm able to...
The continuous monitoring of patients' vital parameters during recovery, essential in critical situations, is usually performed by dedicated supervision equipments and specialized personnel. For non-critical situations, to reduce the hospitalization and personnel expenses, patient rehabilitation can take place at home, supported by portable devices for vital parameter monitoring. Usually, such devices...
Machine Condition Monitoring (MCM) is become crucial in all industrial processes to achieve high reliability, reduced man power and scheduled maintenance. The cost reduction of diagnostic tool allows for on line testing, and user-friendly interfaces minimize requirements about technician expertise. For all these reasons, the use of smartdevices (including smartphone, tablets, PDA…) has been suggested...
Currently, there is a growing demand for energy efficient solutions in different areas. The improvement of the quality of service and the reduction of resource waste is the goal of new solutions. Smart grids, smart metering systems and smart distributed control systems are the most interesting results of the last years, going to the direction of a new concept: the Smart City. The smartness of these...
Advantages of smart metering are well known: more control of resource usage, accurate bills and better budgeting. For this reason roll out plans have been created not only for electricity, but also for gas distribution. In such a scenario, some additional difficulties arise due to the need of a wireless and autonomous functioning of meters. In particular, measurement techniques and communication protocols...
Today, the broad proliferation of Smartphones and Tablets has determined a wide availability of software applications for numerous purposes. Thanks to this, Smartphones are now essential devices for many aspects of everyday life and not just advanced mobile phone terminals. The presence of powerful processing units, embedded sensors as well as the availability of many standard communication interfaces...
In the last years, the increasing focus on energy savings is the key factor in the transformation of the legacy distribution grid toward the so called smart grid. One of the most evident, it is the wide diffusion, in some countries, of smart metering technologies for monitoring of customer electrical consumption. The proven benefits of this technology suggested to the Italian regulative agency the...
The adoption of IEC 61850 in the deployment of Substation Automation System opens new scenarios to system design. The presence of a communication infrastructure connecting Intelligent Electronic Device (IED), sensors and protections may suggest the development of distribute measurement devices, where the sampling of the physical quantities and the elaboration of the sampled value could be performed...
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