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VALENTINA DI MATTIA

Pubblicazioni

VALENTINA DI MATTIA

 

27 pubblicazioni classificate nel seguente modo:

Nr. doc. Classificazioni
12 4 Contributo in Atti di Convegno (Proceeding)
8 2 Contributo in Volume
6 1 Contributo su Rivista
1 8 Tesi di dottorato
Anno Risorsa
2018 IoT-Enabled Smart Gas and Water Grids: from Communication Protocols to Data Analysis
Internet of Things: Challenges, Advances, and Applications
Autore/i: Susanna, Spinsante; Stefano, Squartini; Paola, Russo; Adelmo De Santis, ; Marco, Severini; Marco, Fagiani; Valentina Di Mattia, ; Roberto, Minerva
Editore: Chapman and Hall / CRC Computer and Information Science Series
Classificazione: 2 Contributo in Volume
Abstract: Internet of Things (IoT) has become an enabling technology in a huge number of diverse domains, including smart manufacturing, health, and cities. The latter encompasses cyber-physical infrastructures able to improve the citizens’ quality of life in a broader sense, including so-called smart grids (for water, natural gas, energy delivery). This chapter highlights the challenges and possible solutions related to the IoT-oriented design and deployment of smart water and gas grids, and unveils the potentially disruptive impact data analytics and machine learning could have in their management, and in consumption forecasting. The chapter reviews both capillary networks, and future opportunities provided by cellular IoT, as communication infrastructures. Open issues in network planning for smart metering applications, from an electromagnetic perspective, are also discussed, and supported by experimental evaluations. A thorough review of the state-of-the-art literature in the field of machine learning for leakage detection and consumption forecasting concludes the chapter.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/252825 Collegamento a IRIS

2018 An Electromagnetic Sensor Prototype to Assist Visually Impaired and Blind People in Autonomous Walking
IEEE SENSORS JOURNAL
Autore/i: Cardillo, E.; Di Mattia, V.; Manfredi, G.; Russo, P.; De Leo, A.; Caddemi, A.; Cerri, G.
Classificazione: 1 Contributo su Rivista
Abstract: The feasibility of an electromagnetic sensor to assist the autonomous walking of visually impaired and blind users is demonstrated in this paper. It is known that people affected by visual diseases usually walk assisted by some supports, among which the white cane is the most common. Our idea consists in applying a microwave radar on the traditional white cane making aware the user about the presence of an obstacle in a wider and safer range. Compared to the already existing Electronic Travel Aids devices, the proposed system exhibits better performance, noise tolerance and reduced dimensions. In the following, the latest developments of this research activity are presented, with special concern for the miniaturization of circuit board and antennas. A laboratory prototype has been designed and realized and the first test results of obstacle detection are hereby shown to demonstrate the effectiveness of the system
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/252607 Collegamento a IRIS

2018 The Human Body Modelled by Canonical Geometric Shapes for the Analysis of Scattered E-fields
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
Autore/i: Manfredi, G.; Di Mattia, V.; Russo, P.; De Leo, A.; Cerri, G.
Classificazione: 1 Contributo su Rivista
Abstract: The objective of this paper is to propose a simplified model of a human body to be used in electromagnetic problems involving high frequency field scattering. Canonical geometric shapes, analytically described, represent the body. The accuracy of the model was tested comparing the field scattered by the simplified body representation with the one scattered by a more realistic phantom. At first, the influence of anatomical details of the body was analysed, comparing the electromagnetic field reflected by a realistic human head with the backscattering of spheres and of an ellipsoid. A second test concerns the human body, modelled by sphere, parallelepiped and cylinders. In this case, the possibility of reconstructing a wideband pulse scattered by the whole body with the superposition of pulses scattered by its separated parts was demonstrated. Both analyses were carried out in the frequency range 3- 5 GHz using a full wave numerical simulator.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/259473 Collegamento a IRIS

2018 Radar Doppler technique to estimate the energy expenditure of human physical activities
IET Conference Publications
Autore/i: Russo, P.; Di Mattia, V.; Manfredi, G.; De Leo, A.; Cerri, G.
Editore: Institution of Engineering and Technology
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The estimation of activity-related energy expenditure during a day is an important parameter to be calculated and monitored, especially in Ambient Assisted Living application for elders. In fact, scientific evidences exist that a sedentary life has serious physiological and heart implications. Many are the compact and wearable measuring devices currently available, such as pedometers and accelerometers. Anyway, in the view of Ambient Assisted Living application, contactless and no-collaborative systems are to be preferred. For this reason, in this paper an alternative approach for activity-related energy expenditure calculation based on an electromagnetic contactless motion sensor is proposed. The velocity and kinetic energy associated to a moving target are calculated from the elaboration of spectrogram intensity. The method has been firstly validated with a well-known movement, i.e. the swinging of a physical pendulum, and then tested with a human subject moving his arm, with very promising results. © Institution of Engineering and Technology.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263930 Collegamento a IRIS

2017 An electromagnetic sensor for the autonomous running of visually impaired and blind athletes (Part II: The wearable device)
SENSORS
Autore/i: Pieralisi, Marco; Di Mattia, Valentina; Petrini, Valerio; De Leo, Alfredo; Manfredi, Giovanni; Russo, Paola; Scalise, Lorenzo; Cerri, Graziano
Classificazione: 1 Contributo su Rivista
Abstract: Currently, the availability of technology developed to increase the autonomy of visually impaired athletes during sports is limited. The research proposed in this paper (Part I and Part II) focuses on the realization of an electromagnetic system that can guide a blind runner along a race track without the need for a sighted guide. In general, the system is composed of a transmitting unit (widely described in Part I) and a receiving unit, whose components and main features are described in this paper. Special attention is paid to the definition of an electromagnetic model able to faithfully represent the physical mechanisms of interaction between the two units, as well as between the receiving magnetic sensor and the body of the user wearing the device. This theoretical approach allows for an estimation of the signals to be detected, and guides the design of a suitable signal processing board. This technology has been realized, patented, and tested with a blind volunteer with successful results and this paper presents interesting suggestions for further improvements.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/245870 Collegamento a IRIS

2017 An electromagnetic contactless system for respiration monitoring: a survey of research activity in Ancona
Proceedings of the International Workshop on Analysis of Biometric parameters to detect relationship between stress and sleep quality (AnBiPa 2016)
Autore/i: Di Mattia, Valentina; Petrini, Valerio; Manfredi, Giovanni; alfredo De Leo; Russo, Paola; Cerri, Graziano; Scalise, Lorenzo
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/249527 Collegamento a IRIS

2017 Theoretical model for remote heartbeat detection using radiofrequency waves
Lecture Notes in Electrical Engineering
Autore/i: Di Mattia, V; Manfredi, G.; Baldini, M.; Petrini, V.; Scalise, L.; Russo, P.; De Leo, A.; Cerri, G.
Editore: Springer Verlag
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/248212 Collegamento a IRIS

2017 Contactless monitoring of respiratory activity using electromagnetic waves for ambient assisted living framework: feasibility study and prototype realization.
Human Monitoring, Smart Health and Assisted Living: Techniques and technologies
Autore/i: Petrini, V.; Di Mattia, V.; De Leo, A.; Scalise, L.; Russo, P.; Manfredi, G.; Cerri, G
Editore: Healthcare Technologies
Classificazione: 2 Contributo in Volume
Abstract: Respiratory rate is a vital parameter of primary importance in medicine, sport/fitness and wellness in general, especially for most vulnerable categories of people like children and elderly people. Contactless determination of breathing activity provides a powerful and essential mean for evaluating this parameter in subjects who cannot accommodate physical sensors on their bodies. In hospital such subjects may be intensive care patients, prematurely born children and hosts of burn units. Moreover, also for long-term measurements of healthy people, for example, an elder living in home alone or in a care centre, invasive systems prove to be uncomfortable and annoying. Even for a night-time diagnosis of respiratory sleep disorders, like apnoea and hypopnoea, they demonstrate to interfere with the sleep regularity. Therefore, in the last decades many electronic devices have been conceived and realized to detect such an important parameter along with different branches of physics: strain gauges, ultrasounds, optics, thermometry, etc. This chapter presents the theoretical studies, the design and realization of a standalone Electromagnetic (EM) system for contactless determination of breathing frequency and subject's activity. Two major EM solutions are already known in the literature, continuous wave (CW) systems, and ultra-wideband (UWB) systems. The first evaluates the Doppler effect caused by the chest displacement during breathing at a single frequency, and the other one is a radar that detects the body motion by measuring the time shifts of sequential pulses.An intermediate solution thatjoins the advantages ofboth and overcomes their drawbacks is proposed. Through the use of a frequency sweep, in fact, it is possible to retrieve the equivalent information that UWB pulses are able to give, yet keeping the same contained hardware complexity of a CW system. At the same time, the proposed system proves to be robust and insensible to environmental changes. The theoretical studies have aimed at the demonstration that the solution under study helps in avoiding the blind frequencies that affect CW systems, because of sensitivity issues that depend on the variability of the reflection coefficient from the frequency and, as proved, from the harmonic content of the monitored motion. Supported by such theoretical studies, the preliminary tests are performed using laboratory instrumentation (a VNA and a commercial double ridge antenna) for a thorough campaign of measurements on assorted frequency bands, both in a controlled environment (anechoic angle) and in a concrete house, that inherently clutter the received signal. The second step involves the design and realization of a custom antenna, to be used in place of the double ridge and operating in a narrower band, which has demonstrated the same reliability of the commercial one. It has been verified in different conditions that the proposed system is able to detect both the position of the subject (i.e. distance from the antenna) and his breathing frequency, without any need for collaboration from the subject under measure. The final activity is the realization of a prototype of the device that implements the algorithms that have been studied. It is worth to highlight that the proposed system can be profitably adopted for Ambient Assisted Living framework, since it is not invasive and does not infringe the privacy of the end user, and yet it provides many valuable information about the subject's health status.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/255908 Collegamento a IRIS

2017 An Electromagnetic Sensor for the Autonomous Running of Visually Impaired and Blind Athletes (Part I: The Fixed Infrastructure)
SENSORS
Autore/i: Pieralisi, Marco; DI MATTIA, Valentina; Petrini, Valerio; DE LEO, Alfredo; Manfredi, Giovanni; Russo, Paola; Scalise, Lorenzo; Cerri, Graziano
Classificazione: 1 Contributo su Rivista
Abstract: Sport is one of the best ways to promote the social integration of people affected by physical disability, because it helps them to increase their self-esteem by facing difficulties and overcoming their disabilities. Nowadays, a large number of sports can be easily played by visually impaired and blind athletes without any special supports, but, there are some disciplines that require the presence of a sighted guide. In this work, the attention will be focused on marathons, during which athletes with visual disorders have to be linked to the sighted guide by means of a non-stretchable elbow tether, with an evident reduction of their performance and autonomy. In this context, this paper presents a fixed electromagnetic infrastructure to equip a standard running racetrack in order to help a blind athlete to safely run without the presence of a sighted guide. The athlete runs inside an invisible hallway, just wearing a light and a comfortable sensor unit. The patented system has been homemade, designed, realized and finally tested by a blind Paralympic marathon champion with encouraging results and interesting suggestions for technical improvements. In this paper (Part I), the transmitting unit, whose main task is to generate the two magnetic fields that delimit the safe hallway, is presented and discussed.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/245627 Collegamento a IRIS

2016 A feasibility study of a compact radar system for autonomous walking of blind people
Proceedings 2016 IEEE 2nd International Forum on Research and Technologies for Society and Industry Leveraging a better tomorrow (RTSI),
Autore/i: Di Mattia, Valentina; Manfredi, Giovanni; De Leo, Alfredo; Russo, Paola; Scalise, Lorenzo; Cerri, Graziano; Caddemi, Alina; Cardillo, Emanuele
Editore: IEEE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: In this contribution, recent developments in the design and development of a novel compact smart radar for visually impaired and blind users are described. Starting from previous studies and according to the specific user requirements, a new antenna (dimensions: 54mm × 8.4mm × 1.44mm) and an integrated Tx/Rx circuit board, working in the 24–26 GHz frequency band, have been designed; the aim of these improvements is twofold: the miniaturization of the whole system allowing its integration onto a traditional white cane and a drastic reduction of the dimensions, weight and final costs of the system by using existing and available technologies.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/240752 Collegamento a IRIS

2016 Electromagnetic Technology for a New Class of Electronic Travel Aids Supporting the Autonomous Mobility of Visually Impaired People
Visually Impaired: Assistive Technologies, Challenges and Coping Strategies
Autore/i: DI MATTIA, Valentina; Scalise, Lorenzo; Petrini, Valerio; Russo, Paola; DE LEO, Alfredo; Pallotta, Emanuele; Mancini, Adriano; Zingaretti, Primo; Cerri, Graziano
Editore: Nova Science Publishers
Classificazione: 2 Contributo in Volume
Abstract: It is well known that the most common and largely used assistive technology among the visually impaired community is the white cane. Despite it is a passive technology with a very limited range of work, its easiness of use and low cost make still prevalent its use. Many technologies have been proposed as alternative assistive devices (in literature and on the market) to improve the autonomous mobility of people affected by eye diseases. Nevertheless, whatever is the physical quantity used by these active assistive technologies - mainly ultrasonic or optical sensors - they present many limitations and none of them adequately meets the international guidelines defined for the electronic travel aids and the specific requests coming from the visually impaired community. This chapter aims to provide an overview of the existing travel aids for people affected by visual disorders, discussing pros and cons of available technologies, and to describe the design and the characterization of a novel class of electronic travel aids based on electromagnetic fields, whose advantages, with respect to the traditional ultrasonic and optic devices, will be explained. Starting from a laboratory prototype, the aspects relative to the miniaturization of the device will be discussed, with a particular attention to the realization of a small radiating element to be attached onto the cane. Operative tests with a blind end user will be reported, demonstrating several potentialities of the electromagnetic technology: detecting in advance (few meters from the user) dangerous objects of different shape and material, detecting the presence of obstacles located at chest or head levels, providing the position of the obstacle respect to the user, easiness of use, etc.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/235219 Collegamento a IRIS

2016 An electromagnetic contactless system for apnea monitoring
IEEE 2nd International Smart Cities Conference: Improving the Citizens Quality of Life, ISC2 2016 - Proceedings
Autore/i: Petrini, Valerio; Di Mattia, Valentina; Manfredi, Giovanni; De Leo, Alfredo; Russo, Paola; Cerri, Graziano; Scalise, Lorenzo
Editore: IEEE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The respiratory rate is one of the main vital parameters to be monitored in order to record the physiological and psychological status of a human being. In particular, apnea events represent a serious problem that affect adults and infants and can lead to irreversible brain damages and even to death. Despite these evidences, respiratory rate remains the less monitored parameter because of shortcomings of obstructive measurement techniques. For these reasons during last years we focused our research activity on the development of a smart electromagnetic sensing that allows remote and contactless breathing monitoring and reduces the request of collaboration of the monitored target. In this contribution we want to demonstrate that the electromagnetic approach proposed is also able to record long-time sleep breathing activity highlighting the presence of apnea events. To this aim a campaign of measurements have been conducted in a real domestic scenario and first interesting results will be shown together with some suggestions for future developments.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/239903 Collegamento a IRIS

2016 The use of the Electromagnetic Technology in Support to Visually Impaired Athletes Runners
Visually Impaired: Assistive Technologies, Challenges and Coping Strategies
Autore/i: Pieralisi, Marco; DI MATTIA, Valentina; Petrini, Valerio; Manfredi, Giovanni; Russo, Paola; DE LEO, Alfredo; Scalise, Lorenzo; Cerri, Graziano
Editore: Nova Science Publishers
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/235220 Collegamento a IRIS

2015 Design and Realization of an Electromagnetic Guiding System for Blind Running Athletes
SENSORS
Autore/i: Pieralisi, Marco; Petrini, Valerio; DI MATTIA, Valentina; Manfredi, Giovanni; DE LEO, Alfredo; Scalise, Lorenzo; Russo, Paola; Cerri, Graziano
Classificazione: 1 Contributo su Rivista
Abstract: Nowadays the technologies aimed at improving the quality of life of people affected by visual diseases are quite common; e.g., devices to support walking or reading. Surprisingly; there is a lack of innovative technologies aimed at helping visually impaired athletes during physical activities. An example is represented by blind runners who need to be physically linked to a sighted guide by means of non-stretchable tethers during races; with consequent limitations in terms of performance and independence. This paper wants to investigate the possibility of realizing a system able to guide blind runners along a complex path; paving the way for the realization of an innovative device designed to improve their independence during training or competitions. The system consists of: (1) A mobile unit; which is placed before the runner and generates two “electromagnetic walls” delimiting the way; (2) a receiving unit (worn by the athlete) that provides vibro-tactile warnings every time the user is going outside the safe area so as to encourage him to move toward the central position. The feasibility and the utility of the system proposed are demonstrated by means of tests carried out thanks to the collaboration of a blind volunteer.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/227312 Collegamento a IRIS

2015 Electromagnetic Technologies as Travel Aids for Visually Impaired Subjects
Ambient Assisted Living Italian Forum 2014
Autore/i: Cerri, G.; De Leo, A.; Di Mattia, V.; Manfredi, G.; Mariani Primiani, V.; Petrini, V.; Pieralisi, M.; Russo, P.; Scalise, L.
Editore: Springer International Publishing
Classificazione: 2 Contributo in Volume
Abstract: The aim of this paper is to present the electromagnetic (EM) technology as possible assistive technology for the mobility tasks of visually impaired subjects. The paper will present their characteristics, discussing pros and cons of their use with respect to the existing traditional technologies and electronic travel aids, in terms of performances, miniaturization and wearing comfort. In particular, two applications of EM technologies will be presented more in detail: a first example consists in the design and realization of a laboratory prototype of an EM system able to detect the presence of obstacles along the walking path of visually impaired users and hence to assist them during their mobility tasks, possibly allowing them to walk safely and independently. The second example is the theoretical and experimental study of feasibility of an EM system specifically addressed to visually impaired runners. In conclusion, some hints for discussion will be presented; the user interaction with the sensing system, the signal analysis and possible features extraction will be reviewed addressing issues requiring a multidisciplinary approach.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/227772 Collegamento a IRIS

2015 A K-band miniaturized antenna for safe mobility of visually impaired people
Proceedings of 15th IEEE Mediterranean Microwave Symposium, MMS 2015
Autore/i: Di Mattia, Valentina; Petrini, Valerio; Pieralisi, Marco; Manfredi, Giovanni; De Leo, Alfredo; Russo, Paola; Cerri, Graziano; Scalise, Lorenzo
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: This contribution regards the design and realization of an electromagnetic system to support the autonomous mobility of visually impaired and blind people. The system works like a radar that transmits a short pulse and analyzes the echo coming from the surrounding. Operative tests carried out with the collaboration of a blind end user demonstrated several potentialities of the electromagnetic technology: detecting in advance (few meters from the user) dangerous objects of different shape and material, detecting the presence of obstacles located at chest or head levels, providing the position of the obstacles respect to the user, easiness of use, etc. In this context, a special attention has been paid to the miniaturization of the transmitting element, which is a k-band slot antenna to be integrated on a small circuit board to be attached onto a white cane.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/234421 Collegamento a IRIS

2015 A 3-D body model for physical activity monitoring by microwave radiation
Proceedings of 15th IEEE Mediterranean Microwave Symposium, MMS 2015
Autore/i: Manfredi, Giovanni; Petrini, Valerio; Di Mattia, Valentina; Pieralisi, Marco; De Leo, Alfredo; Russo, Paola; Cerri, Graziano; Scalise, Lorenzo
Editore: IEEE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The human body is a very complex structure, which has not been studied explicitly, until today, for remote monitoring application or wireless communication. This paper presents a preliminary study in the will to demonstrate how the combination of primitive shapes such as spheres, cylinders and parallelepipeds allows creating a simplified 3-D body model sufficient to analyze the interaction mechanisms of electromagnetic waves and resulting more efficient than numerical tools in terms of computational requirements. A comparison between the electric field scattered from a simple geometrical shape and from the realistic face of a phantom will be presented to show the accuracy of the model. To conclude, some experimental results with simulated data will be compared in order to provide a preliminary validation of the method.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/234420 Collegamento a IRIS

2015 Domestic monitoring of respiration and movement by an electromagnetic sensor
Ambient Assisted Living
Autore/i: V. Petrini; V. Di Mattia; A. De Leo; P. Russo; V. Mariani Primiani; G. Manfredi; G. Cerri; L. Scalise;
Editore: Springer International Publishing
Classificazione: 2 Contributo in Volume
Abstract: The aim of this paper is to investigate the capabilities of a novel electromagnetic technique designed for contactless monitoring of breathing activity in Ambient Assisted Living applications. The method is based on the transmission of a frequency sweep and the measurement of the reflection coefficient to determine the respiration rate of a subject. To date, the method is under optimization, but it has already shown interesting capabilities of calculating not only the respiration rate, but also additional features, as the position of the subject inside a room and his/her movements. After a brief mathematical description of the algorithm, some preliminary tests will be described concerning the monitoring of a human target inside a room. These first results clearly show the capability of the method to detect the subject, his breathing rate, position and physical activity. Of course further signal processing is required in order to distinguish between different types of movements and to classify them.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/205324 Collegamento a IRIS

2015 An EM Modeling for Rescue System Design of Buried People
INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
Autore/i: DE LEO, Alfredo; Petrini, Valerio; Russo, Paola; Scalise, Lorenzo; DI MATTIA, Valentina; MARIANI PRIMIANI, Valter; Cerri, Graziano
Classificazione: 1 Contributo su Rivista
Abstract: The development of a rescue system for buried persons is a subject of growing importance in case of occurrence of natural disasters such as earthquake, landslides, or avalanches. In this paper a fully analytical model has been developed to get some fundamental a priori design characteristics. The proposed system is based on the detection of the victim movements due to its respiratory activity: in particular, when an electromagnetic (EM) wave impinges on a human body, the analysis of the reflected wave parameters such as amplitude, frequency, phase, or delay time allows for the detection of the breathing frequency. The model is simple on purpose because the great uncertainty concerning the characterization of many environmental parameters of a general situation makes a very detailed model useless. However, it is accurate enough to provide useful information about system design, filling the gap in the literature concerning the electromagnetic formulation of such kinds of problems. A system prototype was built using laboratory equipment to experimentally validate the model, and subsequently breathing frequency measurements were carried on, both in a lossless laboratory environment and in a lossy realistic scenario.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/226935 Collegamento a IRIS

2014 Design and realization of a wideband antenna for non-contact respiration monitoring in AAL application
MESA 2014 - 10th IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications, Conference Proceedings
Autore/i: V. Di Mattia; V. Petrini; E. Pallotta; A. De Leo; M. Pieralisi; G. Manfredi; P. Russo; V. Mariani Primiani; G. Cerri; L. Scalise;
Editore: IEEE / Institute of Electrical and Electronics Engineers
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: This contribution is part of a wider research project whose final aim is the realization of a small EM sensing system for non-contact monitoring of respiration activity in indoor environments. The paper presents the design of an optimized radiating element that satisfies challenging requirements: good impedance matching over a wide frequency bandwidth (3-5 GHz), directive radiation pattern, small dimensions (in order to reduce its invasiveness) and low cost for realization. In detail, an antenna model already existing in literature has been optimized and adapted to this specific application using a full wave numerical simulator. Finally a first antenna prototype has been realized and experimentally tested to compare the measured parameters with the simulated results.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/205718 Collegamento a IRIS

2014 Ambient Assisted Living electromagnetic sensor for continuous breathing monitoring applied to movement analysis: a preliminary study
Proceedings of the IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications
Autore/i: V. Petrini; V. Di Mattia; A. De Leo; P. Russo; V. Mariani Primiani; G. Manfredi; L. Scalise; G. Cerri
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The aim of this paper is to investigate the capabilities of a novel electromagnetic technique designed for contactless monitoring of breathing activity in Ambient Assisted Living applications. The method is based on the transmission of a frequency sweep and the measurement of the reflection coefficient to determine the respiration rate of a subject. To date, the method is under optimization, but it has already shown interesting capabilities for calculating not only the respiration rate, but also additional features, as the position of the subject inside a room and his/her movements. After a brief mathematical introduction of the algorithm, some preliminary tests are presented concerning the monitoring of a human target inside a room. These first results clearly show the capability of the method to detect the subject, his breathing rate, position and physical activity. Of course further signal processing is required in order to distinguish between different types of movements and to classify them.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/172703 Collegamento a IRIS

2014 A Novel Measurement Method for Respiration Rate by Electromagnetic Frequency Sweep
Proceedings of the IEEE International Symposium on Medical Measurements and Applications,
Autore/i: L. Scalise; V. Petrini; P. Russo; V. Mariani Primiani; A. De Leo; V. Di Mattia; G. Cerri
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The non-contact measurement of the respiration rate of a subject offers several interesting applications in hospital as well as in domestic environments. The use of electromagnetic waves has been proved to be a feasible approach to this purpose. In this paper, authors present a novel measurement method, based on the transmission of a frequency sweep and the measurement of the reflection coefficient (S11), to determine the respiration rate of the monitored subject without contact. The proposed method places itself at the half-way between continuous wave (CW) and ultra wide band (UWB) techniques, offering some advantages of both methods and improving its feasibility. Experimental tests have been carried out on voluntary subjects simultaneously measured with two reference systems in order to compare respiration frequency values. Results show a good correlation between the data measured during tests, proving that the proposed method is a valid approach to the issue of the non-contact assessment of the respiration rate both in clinical and domestic environments.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/172702 Collegamento a IRIS

2014 The Electromagnetic Technology for Safe Mobility of Visually Impaired People
Proceedings of the 22nd Mediterranean Conference on Control and Automation
Autore/i: G. Cerri; A. De Leo; V. Di Mattia; G. Manfredi; V. Mariani Primiani; V. Petrini; M. Pieralisi; P. Russo; L. Scalise
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/172705 Collegamento a IRIS

2014 Study for a novel electromagnetic travel aid for visually impaired people
Editore: Università Politecnica delle Marche
Classificazione: 8 Tesi di dottorato
Abstract: La mobilità autonoma per le persone ipovedenti e non vedenti può essere molto difficile e spesso richiede l'uso di dispositivi di supporto, come il bastone bianco. Nel corso degli ultimi decenni sono stati proposti numerosi dispositivi elettronici con lo scopo di fornire al non vedente delle informazioni sull’ambiente circostante utili alla deambulazione. Ad oggi nessuno di essi soddisfa appieno i requisiti delle linee guida internazionali definite per gli ETA. Si è pensato quindi di studiare un ausilio innovativo basato su impulsi elettromagnetici, ancora mai impiegati per questo scopo. L’attività di ricerca è iniziata con due studi preliminari, sperimentale e teorico, che hanno confermato le potenzialità dei campi EM sia nel rilevare la presenza di ostacoli che nel fornire informazioni aggiuntive riguardanti distanza, materiale e dimensione. E’ stato poi realizzato e testato da un volontario non vedente un prototipo capace di rilevare tramite un’antenna la presenza di un ostacolo e avvisare l'utente con allarmi acustici via via più intensi all’avvicinarsi dell’oggetto. Secondo i feedback dell’utente il sistema è facile da usare e in grado, a differenza del bastone bianco, di rilevare anche ostacoli sospesi; ha però bisogno di essere miniaturizzato, velocizzato per avere risposte in tempo reale e dotato d’interfaccia vibro-tattile. L'attenzione è stata focalizzata sulla progettazione di nuovi elementi radianti (un’antenna horn e un array di slot planari) caratterizzati da: -alte frequenze di lavoro e quindi dimensioni ridotte; -banda ultra larga e quindi alta risoluzione spaziale; -diagramma di radiazione largo sul piano verticale per proteggere l’utente dai piedi alla testa e stretto sul piano orizzontale per consentire una scansione manuale o elettronica dell'ambiente. L'array di slot planari risulta la soluzione migliore perché consente facile integrazione con altri circuiti e linee di alimentazione, è flessibile e quindi facilmente attaccabile sul bastone, e spiana la strada per la progettazione di un dispositivo indossabile.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/242743 Collegamento a IRIS

2014 Electromagnetic sensing of obstacles for Visually Impaired users
Ambient Assisted Living
Autore/i: Scalise, Lorenzo; DI MATTIA, Valentina; Russo, Paola; DE LEO, Alfredo; MARIANI PRIMIANI, Valter; Cerri, Graziano
Editore: Springer International Publishing Switzerland
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: Respiration activity is one of the fundamental functions of the human being (also known as vital signs) which is monitored for health purposes. Often it is required to operate the sensing of the respiration activity out of hospitals or clinical environments and without contact with the patient and possibly from a distance i.e. for the home monitoring of patients or for the ambient assisted living, AAL). Unfortunately, at present the sensing apparatus for respiration monitoring purposes are mainly based on the use of contact methods (chest belt, nasal temperature transducers, etc.) which appear to be not suited for such tasks. In this paper, the authors propose a novel approach based on the use of electromagnetic sensing of the respiration activity of subject. The proposed approach provide a remote, continuous measurement of the inspiration/expiration acts of a subject without requiring a contact; these features of the proposed system are suited for domestic monitoring and AAL.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/172706 Collegamento a IRIS

2014 Remote Measurement of the Respiration by Electromagnetic Sensing
Ambient Assisted Living
Autore/i: Scalise, Lorenzo; Petrini, Valerio; Russo, Paola; DE LEO, Alfredo; MARIANI PRIMIANI, Valter; DI MATTIA, Valentina; Cerri, Graziano
Editore: Springer International Publishing Switzerland
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/172707 Collegamento a IRIS

2012 Breath detection of humans buried in a homogeneous lossy medium: a simplified analytical model
Proceedings of the International Symposium on Electromagnetic compatibility- EMC Europe 2012
Autore/i: Alfredo De Leo; Valter Mariani Primiani; Paola Russo; Desar Shahu; Valentina Di Mattia; Graziano Cerri
Editore: IEEE
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: The aim of this work is to highlight the paramount importance of the availability of an electromagnetic model for the design of system based on electromagnetic radiation for search and rescue operation of humans buried under different materials as debris, and snowslide. In this contribution the monitoring of the breathing activity of a man buried into a homogeneous lossy medium has been analyzed. The geometry of the scenario and the body have been simplified in order to model the electromagnetic problem of the interaction of the body and impinging field in a closed-form. In spite of the simple formulation the results are satisfactory and show how some a priori important system requirements can be obtained, as for example the most suitable working frequency range. The model is able to predict the sensitiveness in terms of phase and module variations depending on the scenario.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/80215 Collegamento a IRIS


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