The evolution of multipurpose sensors over the last decades has been investigated with aim developing innovative devices applications in several fields technology, including food industry. integration such packaging technology paved way for intelligent packaging. These integrated systems are capable providing reliable information about quality packed products during their storage period. To accomplish this goal, packs use a variety suited monitoring and safety by recording parameters like...

Many fields of human activity benefit from the ability to create images obscured objects placed behind walls and map their displacement in a noninvasive way. Usually, imaging devices like Synthetic Aperture Radars (SARs) Ground-Penetrating (GPRs) use expensive dedicated electronics which results prohibitive prices. This paper presents experimental implementation obtained an system capable performing SAR interferometric mapping targets located walls, as well 3D GPR using low-cost...

This paper presents two methods applied in the context of surveilling and localizing electrical arcs which usually occur photovoltaic power systems. The wavelet analysis has proved to be very powerful transient signal detection, namely multiscale edge thereby we use this method detect localize them time. Secondly, recurrence plot (RPA) presented succesful results partial discharge time localization. In order obtain space localization arc, used time-of-arrival arc at acoustic sensor system....

Water is of major interest and especially nowadays, due to increasing pollution, the problem its quality becoming more important. One main areas affected by low water are agricultural crops which represent beginning supply chain. This paper aims create a monitoring system based on IoT technology that can assess in real time. Thus, data will be taken with help sensors located basins as well land. Devices have Wi-Fi connectivity received from sent via MQTT protocol (using TCP/IP) Cloud...

Nowadays, smart farming technology is evolving very rapidly. Plant disease monitoring and controlling methods for agriculture are studied in many research laboratories worldwide. In this paper a novel IoT (Internet of Thing) system architecture based on intelligent sensors environment parameters presented. The connected two nodes which send data through radio waves using LoRa. A gateway to the Fog receives then sends it Cloud. characteristics multi-connectivity detailed paper. aim prevent...

This paper presents a system for identifying the travel route using mobile phones. The uses acceleration and tilt sensors from two phones to help navigate on familiar path. purpose of is correct course subject while traveling. In order provide better monitoring elderly or patients, can be used in spaces that lack satellite signal helps people with disabilities such as blind scuba divers. simple use are universally available. distance, azimuth data analysis. Data collected by processed MATLAB...

Human posture can provide important information through non-verbal communication. In recent years, studies of human recognition are becoming more and numerous in the areas personal healthcare, environmental awareness, human-computer interaction surveillance systems. This paper proposes a simple method during walking using leg inclination. The developed system uses mobile phone tilt sensors deflection sensor. Mobile phones positioned on back foot above below knee Flex sensor is foot. purpose...

This paper presents a Software Radio implementation for system capable of locating unintentional ozone-generating sources. Arc discharges produced by electric equipment are major ozone generator in industrial-related environments. There is evidence that long term exposure to serious health threat. The novelty this work resides the application telecommunication specific signal processing methods field prophylactic and occupational medicine.

The paper is an exploratory research regarding the identification of some basic ideas used to conceive solutions general-defined problems. In this way, there firstly presented set choose type model be developed. general problem solver and related problems are also in paper. case a greedy approach which may lead large run time values according software. To significantly decrease computer solve such problem, method minimize search space candidate solutions, being intelligent solver, that more...

Protected wetlands such as deltas, lakes or rivers provide a sanctuary for many endangered species. In order to protect these areas from illegal human interventions, it is necessary monitor the unauthorized entrance of motor boats. mitigate an impact, we have developed network floating beacons underwater acoustic monitoring, using LoRa communication modules operating at 433 MHz. Such should be equipped with compact antennas. this paper, use genetic algorithm approach design compact, monopole...

Different IoT systems based on small devices, controllers and smart networks were developed in recent years. The need to transmit data as far possible required the introduction of new types that use specific communication protocols, such LoRa (Long Range Wide Area) LoRaWan protocol. power supplies needed for these are low power, which allows autonomous systems, charged from renewable energy sources. This study proposes description supply system an consisting two sensors networks. collect...

Many fields of human activity benefit from the ability to create images obscured objects placed behind walls and map their displacement in a noninvasive way. Usually, imaging devices like Synthetic Aperture Radars (SAR) Ground Penetrating (GPR) use expensive dedicated electronics which results prohibitive prices. This paper presents experimental implementation obtained an system capable performing SAR interferometric mapping targets located walls, as well 3D GPR using low-cost...

This paper presents an application of antenna arrays and MUSIC algorithm for estimating the location electric arc source. The proposed technique can be used to localize faults in photovoltaic their associated transformation stations. was implemented tested laboratory. For this purpose, experimental setup consisting 4 antennas, a digital storage oscilloscope with computer connectivity PC (Personal Computer) data processing built. results proved that method is able estimate direction source...

For search and rescue scenarios [1,2], radio devices with precision comparable to laboratory instruments are needed. More than that, the modules have be small enough integrated on autonomous robotic platforms [3] or drones, for activities. Power consumption sustain a reasonable time of autonomy. this purpose, we imagined two modules, fixed frequency receiver wideband transceiver.

This paper presents the characterization of wireless channel affecting radio communication between an unmanned surface vehicle (USV) and its shore-based control center. After experimentally extracting transfer function we present computed responses for typical UWB impulses determine maximum achievable data rate.

This paper presents a method for improving Angle-of-Arrival estimation accuracy in multipath environments using sliding antenna array consisting of only two antennas. The proposed is then experimentally validated by means dual channel Software-Defined Radio receiver and wireless microphone.

In this paper we present a Software-Defined Radio approach for an Electric Arc locator system. The core of the proposed hardware implementation is USRP (Universal Software Peripheral) development platform. novelty work lies in application telecommunication specific advanced signal processing methods field energy generation and transmission. main advantage solution compared to other similar implementations its flexibility adaptability variable working conditions provided by architecture.

Antenna gain is usually evaluated under far-field conditions. Furthermore, Friis transmission formula can solely be applied when antenna size neglected with respect to the distance between measuring and test. In this paper, we show that by applying averaging technique constraints overcome. Our method was validated a monopole Vivaldi in an open area test site (OATS).

This paper deals with the use of autonomous robotic platforms able to locate radio signal sources such as mobile phones, buried under collapsed buildings a result earthquakes, natural disasters, terrorism, war, etc. technique relies on averaging position data resulting from propagation model implemented platform and acquired by at disaster site. That allows us calculate approximate rubble. Based measurements, map site is made, very useful for locating victims guiding specific rubble lifting...

In this paper we propose a new method for detection and localization of electric arcs by using two ultra-wide band (UWB) antennas together with data processing in the time-domain. The source is localized computing an average on inter-correlation functions signals received channels. By calculating path length difference to antennas, direction then found. novelty consists spatial averaging order reduce incertitude caused finite sampling rate.

This paper presents an experimental implementation of ground-based interferometric synthetic aperture radar based on the low cost USRP platform and a computer. The purpose proposed system is to measure small displacements monitored targets over long time period. These types measurements are particularly useful in field civil engineering ecology. Common applications landslide monitoring or bridge building deformation analysis, as well glacier movement monitoring. implements stepped-frequency...

This paper presents an experimental wireless sensor network for monitoring underwater acoustic noises. Each node consists of a floating platform anchored in the location interest, powered by solar panel and storing excess electricity Li-Ion batteries uninterrupted operation. The communication between nodes central (gateway) will be made radio link operating with LoRa standard on frequency 433 MHz, that allows minimizing consumption maximizing distance (several km). implements star topology....