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Wyszukujesz frazę "wireless sensor" wg kryterium: Temat


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
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
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
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
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
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
Tytuł:
The Concept and Security Analysis of Wireless Sensor Network for Gas Lift in Oilwells
Autorzy:
Bielecki, B.
Ksiezopolski, B.
Krajka, A.
Wierzbicki, A.
Powiązania:
https://bibliotekanauki.pl/articles/106180.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
wireless sensor network
WSN
Gas Lift Valves
security requirements
Opis:
Pipelines, wellbores and ground installations are permanently controlled by sensors spread across the crucial points in the whole area. One of the most popular techniques to support proper oil drive in a wellbore is a Gas Lift. In this paper we present the concept of using wireless sensornetwork (WSN) in the oil and gas industry installations. Assuming that Gas Lift Valves (GLVs) in a wellbore annulus are sensor controlled, the proper amount of injected gas should be provided. In aground installation, the optimized amount of loaded gas is a key factor in the effcient oil production.This paper considers the basic foundations and security requirements of WSN dedicated to Gas Lift Installations. Possible attack scenarios and their influence on the production results are shown aswell.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2014, 14, 2; 76-85
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Wireless Sensor Networks to Comprehend their Relevance to Different Applications
Autorzy:
Agarkhed, Jayashree
Dattatraya, Patil Yogita
Patil, Siddarama
Powiązania:
https://bibliotekanauki.pl/articles/308904.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
clustering
energy efficiency
multipath-based routing
wireless sensor network
Opis:
Wireless sensor networks (WSNs) have experienced enormous growth, both in terms of the technology used and their practical applications. In order to understand the features of WSNs that make the solution suitable for a specific purpose, one needs to be aware of the theoretical concepts behind and technological aspects of WSNs. In this paper, the significance of WSNs is illustrated, with a particular emphasis placed on their demands and on understanding researchrelated problems. A review of the literature available is presented as well. Detailed discussions concerning sensor node architecture, different types of sensors used and their relevance for various types of WSNs is presented, highlighting the need to achieve application-specific requirements without degrading service quality. Multipath and cluster-based routing protocols are compared in order to analyze QoS requirements they are capable of satisfying, and their suitability for different application areas is reviewed. This survey highlights the performance of different routing protocols, therefore providing guidelines enabling each of the routing techniques to be used, in an efficient manner, with factors such as specific network structure, protocol operation and routing path construction taken into consideration in order to achieve better performance.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 2; 3-13
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Residual Energy-Aware Clustering Transformation for LEACH Protocol
Autorzy:
Ullas, P.
Shivaprakasha, K. S.
Powiązania:
https://bibliotekanauki.pl/articles/1839356.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
cluster formation
cluster head
residual energy
wireless sensor network
Opis:
Energy is one of the crucial performance parameters in wireless sensor networks (WSNs). Enhancement of network lifetime is an important consideration as well. Low energy-aware clustering hierarchy (LEACH) is one of the protocols proposed for WSNs. In this paper, a residual energy-aware clustering transformation protocol for LEACH (REACT-LEACH), enhancing performance of LEACH by introducing a clustering mechanism, is proposed. The proposed cluster head (CH) rotation and cluster reformation processes are more effective in REACT-LEACH, as residual energy is considered to be one of the metrics. Performance of REACT-LEACH is validated based on simulations.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 2; 31-36
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combining fuzzy and cellular learning automata methods for clustering wireless sensor network to increase life of the network
Autorzy:
Aramideh, J
Jelodar, H
Powiązania:
https://bibliotekanauki.pl/articles/957968.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wireless sensor network
clustering
fuzzy logic
cellular learning automata
Opis:
Wireless sensor networks have attracted attention of researchers considering their abundant applications. One of the important issues in this network is limitation of energy consumption which is directly related to life of the network. One of the main works which have been done recently to confront with this problem is clustering. In this paper, an attempt has been made to present clustering method which performs clustering in two stages. In the first stage, it specifies candidate nodes for being head cluster with fuzzy method and in the next stage, the node of the head cluster is determined among the candidate nodes with cellular learning automata. Advantage of the clustering method is that clustering has been done based on three main parameters of the number of neighbors, energy level of nodes and distance between each node and sink node which results in selection of the best nodes as a candidate head of cluster nodes. Connectivity of network is also evaluated in the second part of head cluster determination. Therefore, more energy will be stored by determining suitable head clusters and creating balanced clusters in the network and consequently, life of the network increases.
Źródło:
Advances in Science and Technology. Research Journal; 2014, 8, 24; 1-8
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teoretyczne i praktyczne aspekty militarnego zastosowania sieci sensorów bezprzewodowych
Theoretical and practical aspects of military use of wireless sensor networks
Autorzy:
Łukasiewicz, H.
Powiązania:
https://bibliotekanauki.pl/articles/348233.pdf
Data publikacji:
2011
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
sensory
sieć sensorów bezprzewodowych
wojsko
sensors
wireless sensor network
army
Opis:
Problematyka wykorzystania urządzeń technicznych do monitorowania miejsc trudnodostępnych oraz miejsc, bądź rejonów zajętych przez przeciwnika była i jest jak najbardziej aktualna. W ostatnich latach rola i znaczenie informacji zdobytej w czasie rzeczywistym bez narażania żołnierzy jest znacząca. Rozwój nowoczesnych technologii związanych z budową czujników dokonujących pomiaru określonych wielkości fizycznych oraz rozwój technologii komunikacyjnych stały się przyczyną, dla której firmy telekomunikacyjne rozpoczęły prace związane z zaimplementowaniem nowoczesnych technologii zastosowania sensorów nie tylko dla celów przemysłowych, ale też dla celów militarnych. Powyższa publikacja ma na celu przybliżenie czytelnikowi zagadnień związanych z zasadami funkcjonowania bezprzewodowych sieci sensorów do zastosowań militarnych. Przedstawiono aspekty teoretyczne i praktyczne możliwości rozpoznawczych oraz wykorzystania poszczególnych rodzajów sensorów w wieloczujnikowej sieci sensorów bezprzewodowych.
The aim of this publication is to introduce the issues connected with the work of sensors for military purposes. It explains the theoretical and practical aspects of the identification capabilities and the use of the different types of sensors in a multi-sensor wireless network. Very up-to-date is the use of technical devices to monitor the areas occupied by the enemy and which are hard to reach. Over the last few years, the possibility of gaining updated information without risking soldiers' lives has become very important. Numerous telecoms have been influenced by the development of new technologies. They have begun implementing technologies connected with communication and the construction of sensors for industrial and military purposes.
Źródło:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2011, 4; 7-27
1731-8157
Pojawia się w:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance analysis of multi-layered clustering network using fault tolerance multipath routing protocol (MRP-FT) in a wireless sensor network (WSN)
Autorzy:
Kaur, Gagandeep
Powiązania:
https://bibliotekanauki.pl/articles/2204100.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
scalability
fault tolerance
neural networks
Boltzmann learning
wireless sensor network
Opis:
Wireless sensor networks (WSNs) are ad hoc and self-configuring networks having the possibility that any sensor node can connect or leave the network. With no central controller in WSN, wireless sensor nodes are considered responsible for data routing in the networks. The wireless sensor nodes are very small in size and have limited resources, therefore, it becomes difficult to recharge or replace the battery of the sensor nodes at far places. The present study focused on reducing the battery consumption of the sensor nodes by the deployment of the newly proposed Fault Tolerance Multipath Routing Protocol (MRP-FT) as compared with the existing Low Energy Adaptive Clustering Hierarchy (LEACH) protocol under particle swarm optimisation based fault tolerant routing (PSO-FT) technique. The proposed algorithm of MRP-FT-based on the dynamic clustering technique using Boltzmann learning of the neural network and the weights were adjusted according to the area of networks, number of nodes and rounds, the initial energy of nodes (E0), transmission energy of nodes (d
Źródło:
Operations Research and Decisions; 2023, 33, 1; 75--92
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EEULA: an energy-aware event-driven unicast algorithm for wireless sensor network by learning automata
Autorzy:
Kashani, A. A. S.
Noori, A. M. M.
Powiązania:
https://bibliotekanauki.pl/articles/102180.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
network lifetime
wireless sensor network
learning automata
energy efficiency algorithm
Opis:
Energy consumption is one of the major challenges in wireless sensor networks, thus necessitating an approach for its minimization and for load balancing data. The network lifetime ends with the death of one of its nodes, which, in turn, causes energy depletion in and partition of the network. Furthermore, the total energy consumption of nodes depends on their location; that is, because of the loaded data, energy discharge in the nodes close to the base station occurs faster than other nodes, the model presented here, through using learning automata, selects the path appropriate for data transferring; the selected path is rewarded or penalized taking the reaction of surrounding paths into account. We have used learning automata for energy management in finding the path; the routing protocol was simulated by NS2 simulator; the lifetime, energy consumption and balance in an event-driven network in our proposed method were compared with other algorithms.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 9-18
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Building Energy Efficient Wireless Sensor Networks
Autorzy:
Cherepanov, A.
Tyshchenko, I.
Popova, M.
Vakhnin, D.
Powiązania:
https://bibliotekanauki.pl/articles/226609.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wireless sensor network
energy efficiency
signals
systems
automated control system
Opis:
This article provides an overview of the existing problems in the construction of wireless sensor networks (WSN), in particular the problem of energy efficiency of the system. In many cases, the WSN is set in places where the connection to the stationary power sources is difficult or impossible. Such situations require the use of autonomous energy sources: traditional (batteries) or alternative (solar panels, wind generators, etc.). Due to limitations in the available system power there is obvious need in efficient use of available energy resources.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 1; 45-49
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intrusion Detection in Heterogeneous Networks of Resource-Limited Things
Autorzy:
Kozakiewicz, A.
Lasota, K.
Marks, M.
Powiązania:
https://bibliotekanauki.pl/articles/307880.pdf
Data publikacji:
2015
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
client honeypot
internet of things (IoT)
intrusion detection
wireless sensor network
Opis:
The paper discusses the threats to networks of resource-limited things such as wireless sensors and the different mechanisms used to deal with them. A novel approach to threat detection is proposed. MOTHON is a movement-assisted threat detection system using mobility to enhance a global threat assessment and provide a separate physical secure channel to deliver collected information.
Źródło:
Journal of Telecommunications and Information Technology; 2015, 4; 10-14
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł

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