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Features of using the energy of electromagnetic radiation for modern electronics are considered. The structure of the sensor with a receiver of radio emission energy, the methods of use and the field of application of radio emission energy receiverst.
Respiration rate plays an important role in human health monitoring. Traditional respiration rate monitoring techniques usually require users to wear some special equipment, which is not convenient for the elderly and the baby. Recently, Wi-Fi based respiration detection technique has attracted much attention due to its device-free and low-deployment-cost. However, most existing studies focus on respiration...
Wireless communication technology is spreading rapidly to all areas of our lives. The technology, which has a wide range of applications from radios, intelligent home systems, automation applications to GPS units, was used in monitoring the workers working in mines in this study. Most of the mining area underground mining is risky and the possibility of accident (gas jams, the explosion and dents,...
In this paper, we propose a full optical wireless bidirectional communication system based on infrared (IR) and Visible Light Communication (VLC) for indoor health monitoring assuming patient mobility inside the indoor environment. Based on ray tracing methods and statistical approach for evaluating channel gain of both links, we determine a global performance in terms of outage probability. Our main...
In our previous study, we proposed a landslide monitoring system using a phase difference in the 920-MHz-band radio waves and experimentally confirmed that the positioning accuracy is of the order of millimeters. However, the experiments were not carried out on a real slope. In this paper, we report the experimental results of landside monitoring on a slope with tall vegetation.
The paper is devoted to modular digital filters including their use in hydroacoustic monitoring tasks. We describe software-defined technology. We provide the description of hydroacoustic monitoring tasks where modular filter application proves to be efficient and improves filter performance. The efficiency of digital filter application can be improved by taking account of the features of their impulse...
Accurate and reliable positioning of vehicles is a decisive factor for many Intelligent Transportation System (ITS) applications. Under the cooperative environment, the eco-driving at specific scenarios, like intersections, requires vehicle motion state information, which can be provided by Global Navigation Satellite System (GNSS) with an integrity monitoring capability. In order to provide effective...
Museum environmental monitoring is an important issue for the artifact conservation. Many solutions have been proposed to tackle this problem, but the museum constraints prevent an easy application in several cases, especially if the monitoring has to be performed in museums where an environmental control system has been already installed. This paper describes a simple though powerful solution, which...
The paper introduces a design of radio spectrography receiver that shall serve as equipment for reception, monitoring, and processing of solar radio bursts. These burst can affect operation of many radio communication and navigation services as is presented on example of GPS satellites signal degradation. The concept and design of the spectrography receiver is presented together with discussion of...
Monitoring the displacements of structures caused by slight or big seismic shakings and landslides the irrespective of observation points by simply taking the data using a single equipment is useful. GNSS antennas and receivers on the roof of a steel tower to monitor the displacement of the structure caused by the wind etc. has already been reported, but ours is the first study on a low-cost GNSS...
This paper describes recent developments at JIVE and the European VLBI Network (EVN), aimed at fostering the seamless interaction of VLBI networks around the globe, and eventually the inclusion of the SKA and its precursors as VLBI elements.
Rate of road accidents is increasing day by day. Fatal road accidents can be easily avoided by understanding the psychological state of a driver. Majority of road accidents occur during night driving due to the drowsiness state of a vehicle driver. The paper provides mechanism to reduce accidents to a large extend by monitoring eye blinking of the driver which indicates the drowsiness, obstacles located...
In this paper, Bluetooth is used as the data transmission mode to achieve the connection between the power transmitter and the mobile phone in the wireless charging system. A Bluetooth module is added to the power transmitter to send the relevant data to the mobile phone in the process of wireless power transfer. Both the power transmitter and the power receiver are designed based on the Qi standard...
In this paper we present the first results of a project aiming at the mitigation of one of the most pressing problems for observational radio astronomy in Italy and the cm-wavelength telescopes world-wide: the ever-deteriorating situation of Radio Frequency Interference (RFI). We illustrate the campaigns conducted at the Noto 32m radio telescope and the Sardinia Radio Telescope (SRT) observing sites...
Mobile devices have been increasing in both number and power. While devices such as smartphones gain capabilities, an increasing number of users rely on them to complete more and more tasks. One of the most significant constraints of mobile devices is the necessary reliance on battery power. This limitation can be circumvented by operating the device while it is charging; however, this approach has...
This paper presents ionospheric scintillation data recorded at SANAE in Antarctica during a moderate geomagnetic storm on 20–21 January 2016 which gives evidence of the advantages of the new generation of instrumentation for monitoring ionospheric scintillation. The data was collected as part of the DemoGRAPE project aimed at the demonstration of cutting edge technology for the empirical assessment...
The ionosphere behaviour over Mexico was studied. We analysed variations of Total Electron Content (TEC) and critical frequency of F2-layer of the ionosphere (foF2). TEC values were extracted from data of local GNSS receivers and if missed then from global ionospheric maps. foF2 values were reconstructed using TEC measured over Mexico and equivalent slab thickness of the ionosphere measured in the...
Due to the widespread deployment and low cost, WiFi has become one of the most attractive research fields in indoor environments, for example, almost every smart mobile device can be a WiFi signal receiver and transmitter. Various WiFi based indoor localization approaches have been proposed under different circumstances. However, most of them are only suitable for relatively small indoor environments,...
Networked Music Performance (NMP) constitutes a class of ultra-low delay sensitive applications, allowing geographically separate musicians to perform seamlessly as a tele-orchestra. For this application type, the QoS indicator is the mouth-to-ear delay, which should be kept under 25 milliseconds. The mouth-to-ear delay comprises signal processing latency and network delay. We propose a strong collaboration...
The Authorities that are responsible for the design and management of infrastructures have an increasing need of information and support in order to optimize their work, save money, time, and, sometimes (e.g., in case of disastrous events), lives. Technological development is leading to new possibilities, in terms of new technologies increasingly available, widespread, reliable and inexpensive and...
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