Search results for "thing"

An Energy-Autonomous Wireless Sensor with Simultaneous Energy Harvesting and Ambient Light Sensing

2021

Wireless sensor nodes (WSNs) are generally powered by batteries, which results in a substantial limitation to the places where the nodes can be installed, to the maximum number of deployable devices, and to the node lifetime. To meet the demand for Internet-of-Things (IoT) applications that require a large number of maintenance-free, low cost, wireless sensor nodes, this paper proposes a wireless sensor platform with a single photovoltaic transducer that performs the dual role of harvesting energy and sensing ambient light. This dual use allows even smaller and cheaper nodes that do not require any form of supporting external power, with a reduced component count. The device implements off-…

A Battery-Free Wireless Smart Sensor platform with Bluetooth Low Energy Connectivity for Smart Agriculture

2022

Smart agriculture systems, which integrate sensors and data analysis into agricultural production processes, are increasingly proving an effective solution for reducing food production waste, yield production increase, and product quality improvement. In this context, this paper deals with a wireless sensors platform for humidity, temperature, and light detection that has the peculiarity to be self-powered and battery-free. The main advantage of the proposed solution is the elimination of maintenance interventions due to battery replacement. Therefore, the availability of install-and-forget sensors allows an easy diffusion for a capillary detection of plant health and growth parameters thro…

Speed detection of battery-free nodes based on RF Wireless Power Transfer

2020

In the Internet of Things (IoT) era, Wireless Sensor Networks (WSNs) are rapidly increasing in terms of relevance and pervasiveness thanks to their notable real-time monitoring performance across several fields, including industrial, domestic, military, biomedical, commercial, environmental, and other sectors. A highly attractive implementation of WSNs is asset tracking with accurate data regarding the location and transportation conditions of goods, equipment, and the like. One highly promising application of WSNs along these lines is the remote speed monitoring of goods, ideally with battery-free sensor nodes that do not require any maintenance. This, however, represents a major challenge…

INDUSTRY 4.0 AS SMART ENABLER FOR INNOVATIVE BUSINESS MODELS

2017

Master's thesis Business Administration BE501 - University of Agder 2017 Industry 4.0 is the upcoming 4th revolution within industrial setups across the world, mainly in manufacturing hubs. Industrial internet of Things (IIOT) will alter the dimensions of the way businesses used to be conducted and the way value was assessed and retrieved. IIOT tends to have a critical impact on the business models (BM) within various industrial sectors, either manufacturing or services. This study tries to observe IIOT related effects on the business models in regards to manufacturing industry from a Tech-based consultancy point of view. This study employs exploratory multiple case study approach to the to…

UAV-Aided Secure Short-Packet Data Collection and Transmission

2023

Benefiting from the deployment flexibility and the line-of-sight (LoS) channel conditions, unmanned aerial vehicle (UAV) has gained tremendous attention in data collection for wireless sensor networks. However, the high-quality air-ground channels also pose significant threats to the security of UAV aided wireless networks. In this paper, we propose a short-packet secure UAV-aided data collection and transmission scheme to guarantee the freshness and security of the transmission from the sensors to the remote ground base station (BS). First, during the data collection phase, the trajectory, the flight duration, and the user scheduling are jointly optimized with the objective of maximizing t…

Ar LoRaWAN raidītājiem aprīkotu objektu monitoringa sistēma

2022

Putnu migrācijas pētījumi palīdz uzzināt daudz jauna par putnu dzīvesveidu. Šiem pētījumiem bieži tiek izmantoti nelieli putni, jo tie ir vieglāk pieejami. Nelielu putnu migrācijas pētījumos šobrīd īsti nav iespēju noteikt putnu lokāciju migrācijas laikā. Izmantojot šā brīža modernākās ierīces, putnu migrācijā dati tiek iegūti, uzliekot vides uztveršanas ierīci putnam, noņemot to nākamajā ligzdošanas periodā (pēc gada). Migrācijas ceļi pēc šādas metodes tiek rēķināti no sensoru datiem pēc tam, kad putns ir atgriezies ligzdošanas vietā. Tā kā putna ķermenis ir viegls, tad arī ierīcei, kas lokācijas datus pārraidītu, ir jābūt nelielai, vieglai un ar zemu enerģijas patēriņu. Darbā apskatītais …

The effects of regular sauna bathing in conjunction with exercise on cardiovascular function : A multi-arm randomized controlled trial

2022

Regular exercise and sauna bathing have each been shown to improve cardiovascular function in clinical populations. However, experimental data on the cardiovascular adaptations to regular exercise in conjunction with sauna bathing in the general population is lacking. Therefore, we compared the effects of exercise and sauna bathing, to regular exercise using a multi-arm randomized controlled trial. Participants (n = 47) aged 49 ± 9 years with low physical activity levels, and at least one traditional CVD risk factor were randomly assigned (1:1:1) to guideline-based regular exercise and 15-minute post-exercise sauna (EXS), guideline-based regular exercise (EXE), or control (CON), for eight w…

Consensus document on the management of patients with obstructive sleep apnea and hypertension.

2010

Emotions toward cognitive enhancement technologies and the body – Attitudes and willingness to use

2020

While technological development is becoming more integrated into our surrounding environments, it is also moving closer towards the human body. In fact, numerous examples can be seen in which information technology (IT) is being designed not just for use on the body, but also inside it. Technologies dominating this domain can be described as ‘cognitive enhancement technologies’ (CETs). These technologies are intended to enhance people's cognitive capabilities, and can be viewed in the forms of implants, lens, drugs, and then moving outward, smart clothing, watches and physical environments to name some. The present study focused on measuring peoples’ (N=104) emotions towards and willingness…

Exclusive measurement of quasi-free η-photoproduction from deuterium

2003

Quasi-free photoproduction of eta-mesons from the deuteron has been measured at the tagged photon facility of the Mainz microtron MAMI with the photon spectrometer TAPS for incident photon energies from the production threshold at 630 MeV up to 820 MeV. In a fully exclusive measurement eta-mesons and recoil nucleons were detected in coincidence. At incident photon energies above the production threshold on the free nucleon, where final state interaction effects are negligible, an almost constant ratio of sigma(n)/sigma(p)=0.66+/-0.10 was found. At lower incident photon energies the ratio rises due to re-scattering effects. The average ratio agrees with the value extracted from a comparison …