Temat: wireless sensor - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Multicast Connections in Wireless Sensor Networks with Topology Control
Autorzy:: Piechowiak, M.
Stachowiak, K.
Bartczak, T.
Powiązania:: https://bibliotekanauki.pl/articles/307684.pdf
Data publikacji:: 2016
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: multicasting
routing
wireless sensor networks
Opis:: The article explores the quality of multicast trees constructed by heuristic routing algorithms in wireless sensor networks where topology control protocols operate. Network topology planning and performance analysis are crucial challenges for wire and wireless network designers. They are also involved in the research on routing algorithms, and protocols for these networks. In addition, it is worth to emphasize that the generation of realistic network topologies makes it possible to construct and study routing algorithms, protocols and traffic characteristics for WSN networks.
Źródło:: Journal of Telecommunications and Information Technology; 2016, 1; 61-67
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Bi-criteria Gateway Placement Problem in Wireless Sensor Networks
Autorzy:: Czajko, M. M.
Wojciechowski, J. M.
Powiązania:: https://bibliotekanauki.pl/articles/226778.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wireless sensor network
bi-criteria optimization
heuristics
Opis:: Over the last few years, wireless sensor networks (WSNs) have started to play more and more important role in civil and military applications. A typical sensor network consists of resource-constrained sensing nodes, which monitor environment and send the data to more powerful gateway nodes. The goal of gateway nodes is to aggregate, process and send the data to other gateways or directly to sink nodes. The proper placement of nodes is needed to provide good network operation. Sensing nodes are often placed in a random manner unlike gateways. Gateways, due to their role and cost, are installed rather in a controlled way. In this paper, a bi-criteria gateway placement problem is introduced. The problem is shown to be NP-hard. We formulate it as a linear programming problem, then we develop the Multi-criteria Simulated Allocation (MSAL) heuristic algorithm, for the purpose of cost-effective gateway deployment and power-effective wireless connection management. Finally, we evaluate the efficiency of the algorithm by comparison with the exact method.
Źródło:: International Journal of Electronics and Telecommunications; 2010, 56, 3; 215-221
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: A Survey of Multi-Objective Deployment in Wireless Sensor Networks
Autorzy:: Marks, M.
Powiązania:: https://bibliotekanauki.pl/articles/308483.pdf
Data publikacji:: 2010
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: coverage
lifetime
placement
positioning
wireless sensor network
Opis:: The major challenge in designing wireless sensor networks (WSNs) is to find tradeoff between the desired and contrary requirements for the lifetime, coverage or cost while coping with the computation, energy and communication constraints. This paper examines the optimal placement of nodes for a WSN. It is impossible to consider the deployment of the nodes separately from WSNs applications. We highlight the properties of WSNs applications that determine the placement problem. We identify and enumerate the various objectives that should be considered. The paper provides an overview and concentrates on multi-objective strategies, their assumptions, optimization problem formulation and results.
Źródło:: Journal of Telecommunications and Information Technology; 2010, 3; 36-41
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Leach and heed clustering algorithms in wireless sensor networks: a qualitative study
Autorzy:: Kazerooni, A A
Jelodar, H
Aramideh, J
Powiązania:: https://bibliotekanauki.pl/articles/958002.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: wireless sensor networks
clustering algorithm
HEED
LEACH
Opis:: Wireless sensor network consists of numerous small and low cost sensors which collect and transmit environmental data. These nodes are spatially distributed and capable of measuring their ambient. Sensor node is responsible for collecting data in regular intervals, converting the obtained data into electronic signals and transmitting data to sink node or base station through reliable wireless communications. Moreover, these nodes are supplied by non-rechargeable batteries with limited energy. Lifetime and network coverage are crucial factors in WSNs. Thus, particular algorithms must be employed so that energy consumption is reduced. In this paper two clustering algorithms LEACH and HEED are investigated.
Źródło:: Advances in Science and Technology. Research Journal; 2015, 9, 25; 7-11
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: A study on routing problems and different routing protocols in wireless sensor networks
Autorzy:: Venkatesakumar, V.
Ragasudha, R.
Powiązania:: https://bibliotekanauki.pl/articles/1182939.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: wireless sensor networks
routing protocols
routing problems
Opis:: Extensive utilization of WSN is the reason of advancement of numerous routing protocols. The Late advances in WSN now witness the expanded enthusiasm for the potential use in applications like Environmental, Military, Space Exploration, Health (Scanning), Vehicular Movement, disaster management, Mechanical anxiety levels of appended objects, battle field observation and so forth. Sensors are required to be remotely conveyed in unattended situations. Propels in WSN innovation has given the accessibility of little and minimal effort sensor hubs with a capacity of sensing different sorts of physical and natural environment conditions, wireless communication and data processing. Assortment of sensing capacities results in bounty of application areas. However, the attributes of WSN require more powerful strategies for data forwarding. The sensor hubs in WSN have a constrained transmission range, and their handling and capacity abilities and as well as their energy assets are also restricted. Routing protocols for WSN are in charge of keeping up the routes in the network system and need to guarantee dependable multi-hop communication under these conditions. Routing as one key innovations of wireless sensor systems has now turned into a hot examination on the grounds that the uses of WSN are all over the place, it is unthinkable that there is a routing protocol suitable for all applications. In this paper, we give an overview of routing issues routing protocols for Wireless Sensor Network.
Źródło:: World Scientific News; 2016, 49, 2; 236-248
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: A wireless data acquisition and processing system
Autorzy:: Matuszewski, Ł.
Woźniak, W.
Stołowski, P.
Jessa, M.
Powiązania:: https://bibliotekanauki.pl/articles/114722.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: metrology
wireless sensor network
microcomputers
radio transmission
Opis:: The paper describes an idea and realization of a system for collecting and processing data from different types of wireless distributed sensors. The system consists of wireless sensor networks. Each network consists of a server connected to the Internet and theoretically unlimited number of clients. The described server has been built with two types of microcomputers. It provides tools for data collecting and processing. A client, described in Section 5, can be implemented on any PC (Personal Computer) with Windows or Linux including the Raspberry PI and any other microcomputer with HDMI joint. It allows providing an interactive signboard. The data coming from a wireless measuring unit is stored in the server. Two versions of the measuring unit (Section 6) were developed. They differ in wireless modules (compared in Section 2). The first solution uses XBee-PRO 868. The second one uses CC-2530 working in ISM 2.4GHz band. The coverage comparison of both solutions is presented in Section 7. The system can be adjusted to measure any environmental value starting with temperature, humidity and ending with more advanced like the chemical composition of air. There is also included comparison with existing commercial solutions.
Źródło:: Measurement Automation Monitoring; 2015, 61, 7; 330-332
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Survey of Energy Harvesting Systems for Wireless Sensor Networks in Environmental Monitoring
Autorzy:: Dziadak, B.
Makowski, Ł.
Michalski, A.
Powiązania:: https://bibliotekanauki.pl/articles/220866.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: environmental monitoring
wireless sensor networks
energy harvesting
Opis:: Wireless Sensor Networks (WSNs) have existed for many years and had assimilated many interesting innovations. Advances in electronics, radio transceivers, processes of IC manufacturing and development of algorithms for operation of such networks now enable creating energy-efficient devices that provide practical levels of performance and a sufficient number of features. Environmental monitoring is one of the areas in which WSNs can be successfully used. At the same time this is a field where devices must either bring their own power reservoir, such as a battery, or scavenge energy locally from some natural phenomena. Improving the efficiency of energy harvesting methods reduces complexity of WSN structures. This survey is based on practical examples from the real world and provides an overview of state-of-the-art methods and techniques that are used to create energyefficient WSNs with energy harvesting.
Źródło:: Metrology and Measurement Systems; 2016, 23, 4; 495-512
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Measurement data acquisition system with mobile server
Autorzy:: Matuszewski, Ł.
Woźniak, W.
Stołowski, P.
Jessa, M.
Powiązania:: https://bibliotekanauki.pl/articles/114426.pdf
Data publikacji:: 2017
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: metrology
wireless sensor network
radio transmission
water meter
Opis:: The paper describes an idea and the realization of a remote reading water meters system with wireless pictures transmission to the mobile server. The system consists of various water meters with installed electronic devices for measurement capturing. The measurements are read by taking a picture of the analog number indicators from the front panel. The pictures are send wirelessly to the mobile server which stores them until the acknowledgement from the main server is received. The mobile server is constructed of the microcomputer Raspberry Pi 3 connected with the XBee_PRO through adapter. The pictures transmission from the mobile server to the main server is realized by the Internet connection. The main server application allows recognizing the numbers from received pictures. The measurement data is available as digital numbers in a data base of the main server. The designed system is dedicated to the work in a low population density area.
Źródło:: Measurement Automation Monitoring; 2017, 63, 5; 174-176
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Simultaneity Analysis In A Wireless Sensor Network
Autorzy:: Malović, M.
Brajović, L.
Mišković, Z.
Šekara, T.
Powiązania:: https://bibliotekanauki.pl/articles/220479.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: time
frequency
simultaneity
synchronization
temperature
wireless sensor networks
Opis:: An original wireless sensor network for vibration measurements was designed. Its primary purpose is modal analysis of vibrations of large structures. A number of experiments have been performed to evaluate the system, with special emphasis on the influence of different effects on simultaneity of data acquired from remote nodes, which is essential for modal analysis. One of the issues is that quartz crystal oscillators, which provide time reading on the devices, are optimized for use in the room temperature and exhibit significant frequency variations if operated outside the 20–30°C range. Although much research was performed to optimize algorithms of synchronization in wireless networks, the subject of temperature fluctuations was not investigated and discussed in proportion to its significance. This paper describes methods used to evaluate data simultaneity and some algorithms suitable for its improvement in small to intermediate size ad-hoc wireless sensor networks exposed to varying temperatures often present in on-site civil engineering measurements.
Źródło:: Metrology and Measurement Systems; 2015, 22, 2; 275-288
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Configurable Secured Adaptive Routing Protocol for Mobile Wireless Sensor Networks
Autorzy:: Alnaser, Ahmed
Al-Junaid, Hessa
Almesaeed, Reham
Powiązania:: https://bibliotekanauki.pl/articles/2134047.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: routing protocol
mobile wireless sensor networks
WSN
security
Opis:: This paper aims at designing, building, and simulating a secured routing protocol to defend against packet dropping attacks in mobile WSNs (MWSNs). This research addresses the gap in the literature by proposing Configurable Secured Adaptive Routing Protocol (CSARP). CSARP has four levels of protection to allow suitability for different types of network applications. The protocol allows the network admin to configure the required protection level and the ratio of cluster heads to all nodes. The protocol has an adaptive feature, which allows for better protection and preventing the spread of the threats in the network. The conducted CSARP simulations with different conditions showed the ability of CSARP to identify all malicious nodes and remove them from the network. CSARP provided more than 99.97% packets delivery rate with 0% data packet loss in the existence of 3 malicious nodes in comparison with 3.17% data packet loss without using CSARP. When compared with LEACH, CSARP showed an improvement in extending the lifetime of the network by up to 39.5%. The proposed protocol has proven to be better than the available security solutions in terms of configurability, adaptability, optimization for MWSNs, energy consumption optimization, and the suitability for different MWSNs applications and conditions.
Źródło:: International Journal of Electronics and Telecommunications; 2022, 68, 3; 577--586
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Coverage control of mobile wireless sensor networks with distributed locations of high interest
Autorzy:: Hanindito, Rudy
Cahyadi, Adha Imam
Nugroho, Prapto
Powiązania:: https://bibliotekanauki.pl/articles/27314197.pdf
Data publikacji:: 2022
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mobile wireless sensor network
coverage control
interest function
Opis:: Formation control is an important part of any system that utilizes multiple mobile agents to achieve its parti‐ cular goals. One of those applications is the mobile wi‐ reless network sensor. This field has become increasingly more popular in recent times due to the advancement of technology, especially in the fields of miniaturization and telecommunications. The main problem of this research is the relatively untested sensing capability of a mobile wireless sensor network in an operating area that has dis‐ tributed and/or multiple locations of high interest. The purpose of this research is to discover the compatibility of a multiple‐agent coverage control system with several examples of interest functions that have multiple and/or distributed points of global maximum value in order to explore more thoroughly the performance of a given sy‐ stem in a varying environments.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2022, 16, 2; 74--80
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Experimental investigation on the piezoelectric energy harvester as a self-powered vibration sensor
Autorzy:: Grzybek, D.
Micek, P.
Powiązania:: https://bibliotekanauki.pl/articles/949300.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: piezoelectric energy harvesting
piezoelectric composite
wireless sensor
vibration
Opis:: The article presents an experimental study of a system consisting of a piezoelectric energy harvesting device, Graetz bridge rectiﬁer, capacitor, voltage comparator and radio transmitter. In the presented experimental study, the recovered electrical energy is accumulated in the capacitor and is used to send signals by a radio transmitter. In the ﬁrst part, the application of piezoelectric energy harvesting devices based on the cantilever beam in wireless monitoring systems is discussed. In the second part, the mathematical model of energy conversion in the piezoelectric energy harvesting devices is presented. In the third part, the characteristics obtained during laboratory research are presented.
Źródło:: Journal of Theoretical and Applied Mechanics; 2018, 56, 3; 687-699
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Bezprzewodowe i mobilne sieci sensoryczne-stan wiedzy
Wireless sensor networks - state of the art
Autorzy:: Czapski, P. P.
Powiązania:: https://bibliotekanauki.pl/articles/213253.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: bezprzewodowe sieci sensoryczne
mobilne sieci sensoryczne
wireless sensor network
Opis:: Bezprzewodowe sieci sensoryczne (BSS, ang. WSN) są coraz częściej stosowane do obserwowania czynników środowiskowych (zastosowania militarne i cywilne). Dzięki postępowi technologicznemu możliwe jest obecnie wytwarzanie węzłów o wymiarach rzędu centymetrów i w cenie poniżej kilku USD za sztukę. Pozwala to na stosowanie węzłów sensorycznych na niespotykaną dotąd skalę i otwiera nowe możliwości dla tzw. wszechobecnej komputeryzacji życia (ang. pervasive/ubiquitous computing). Początkowo, sieci sensoryczne były rozwiazaniami przewodowymi. Rozwój technik bezprzewodowych i przetwarzania danych (procesory, algorytmy, etc.) pozwolił na objęcie przez węzły sensoryczne większego terenu badań. Kolejnym krokiem było zmotoryzowanie bezprzewodowych sieci sensorycznych poprzez montaż węzłów na poruszajacych się pojazdach, co pozwoliło na jeszcze większą rozdzielczość obrazowania przy praktycznie takich samych nakładach finansowych. Artykuł ten jest wprowadzeniem w obszar bezprzewodowych i mobilnych sieci sensorycznych.
Wireless sensor networks (WSN) are used to monitor strategic (from the public safety point of view) parameters of air pollutions. Technological progress in the area of sensor networks allows manufacturing centimetre-scale sensor nodes that may cost less than a few USD per piece. This enables using sensor nodes at such a scale allowing for ubiquitous computing. Initially, the sensor networks were wired solutions. Development of wireless data processing technologies (processors, algorithms, etc.) enables to monitor much larger area compared to wired solutions. The next natural step of sensor network development was to enable mobile monitoring by mounting sensor nodes on moving vehicles, i.e. allowing for much better sensor data resolution at virtually the same cost. This article is an introduction to issues of wireless and mobile sensor networks.
Źródło:: Prace Instytutu Lotnictwa; 2011, 12 (221); 26-46
0509-6669
2300-5408
Pojawia się w:: Prace Instytutu Lotnictwa
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Internet of Things – An Overview
Autorzy:: Sujithra, M.
Padmavathi, G.
Powiązania:: https://bibliotekanauki.pl/articles/1193571.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Common Operating Picture
Internet of Things
Wireless Sensor Network
Opis:: Ubiquitous sensing enabled by Wireless Sensor Network (WSN) technologies cuts across many areas of modern day living. This offers the ability to measure, infer and understand environmental indicators, from delicate ecologies and natural resources to urban environments. The proliferation of these devices in acommunicating – actuating network creates the Internet of Things (IoT), wherein sensors and actuators blend seamlessly with the environment around us, and the information is shared across platforms in order to develop a common operating picture (COP). Fuelled by the recent adaptation of a variety of enabling wireless technologies such as RFID tags and embedded sensor and actuator nodes, the IoT has stepped out of its infancy and is the next revolutionary technology in transforming the Internet into a fully integrated Future Internet.
Źródło:: World Scientific News; 2016, 41; 208-213
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: A Theoretical Review of Topological Organization for Wireless Sensor Network
Autorzy:: Patil, Sarang Dagajirao
Patil, Pravin Sahebrao
Powiązania:: https://bibliotekanauki.pl/articles/1844489.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: clustering algorithms
DEBC
heterogeneous networks
LEACH
wireless sensor network
Opis:: The recent decades have seen the growth in the fields of wireless communication technologies, which has made it possible to produce components with a rational cost of a few cubic millimeters of volume, called sensors. The collaboration of many of these wireless sensors with a basic base station gives birth to a network of wireless sensors. The latter faces numerous problems related to application requirements and the inadequate abilities of sensor nodes, particularly in terms of energy. In order to integrate the different models describing the characteristics of the nodes of a WSN, this paper presents the topological organization strategies to structure its communication. For large networks, partitioning into sub-networks (clusters) is a technique used to reduce consumption, improve network stability and facilitate scalability.
Źródło:: International Journal of Electronics and Telecommunications; 2021, 67, 3; 507-515
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "wireless sensor" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język