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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Skocz do pozycji: 16.

Tytuł:: Differentiated Service Model-Supported Cluster-Based Routing in Wireless Sensor Networks
Autorzy:: Agarkhed, Jayashree
Dattatraya, Patil Yogita
Patil, Siddarama
Powiązania:: https://bibliotekanauki.pl/articles/307674.pdf
Data publikacji:: 2020
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: clustering
energy efficiency
proxy server
TDMA
wireless sensor networks
Opis:: Wireless Sensor Network ﬁnds its extensive use in healthcare applications for the transfer of time-critical data through wireless connectivity. The primary cause of network failure is the transfer of time-critical multimedia data. The article presents a new dfferentiated service modelsupported (DSM) cluster-based routing in wireless sensor networks (WSNs) that overcomes the above issue. DSM prioritizes the transfer of dfferent ﬂow types based on packet type and packet size. The employment of computational offlading minimizes delay for critical and small-sized data packets and by carrying out data reduction of large-sized packets at proxy server. It outperforms the existing protocols in terms of energy efficiency, throughput, and reliability by prioritizing the transfer of time-critical health application data.
Źródło:: Journal of Telecommunications and Information Technology; 2020, 3; 1-9
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: EARPC – Energy Aware Routing Protocol for Cooperative MIMO Scheme in WSNs
Autorzy:: Reddy, Kummathi Chenna
Devanagavi, Geetha D.
Thippeswamy, M. N.
Powiązania:: https://bibliotekanauki.pl/articles/309128.pdf
Data publikacji:: 2020
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: cluster head
cooperative MIMO
virtual MIMO
wireless sensor networks
Opis:: Wireless sensor networks are typically operated on batteries. Therefore, in order to prolong network lifetime, an energy eﬃcient routing algorithm is required. In this paper, an energy-aware routing protocol for the co-operative MIMO scheme in WSNs (EARPC) is presented. It is based on an improved cluster head selection method that considers the remaining energy level of a node and recent energy consumption of all nodes. This means that sensor nodes with lower energy levels are less likely to be chosen as cluster heads. Next, based on the cooperative node selection in each cluster, a virtual MIMO array is created, reducing uneven distribution of clusters. Simulation results show that the proposed routing protocol may reduce energy consumption and improve network lifetime compared with the LEACH protocol.
Źródło:: Journal of Telecommunications and Information Technology; 2020, 3; 22-27
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Telemaco: a language oriented tool for graph-based models layout optimization
Autorzy:: Iacono, M.
Marrone, S.
Powiązania:: https://bibliotekanauki.pl/articles/309420.pdf
Data publikacji:: 2013
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: graph optimization
modelling language
wireless sensor networks
WSN deployment
Opis:: Progress of ICT is shifting the paradigm of systems organization towards a distributed approach, in which physical deployment of components influences the evaluation of systems properties. This contribution can be considered as a problem of graph layout optimization, well-known in literature where several approaches have been exploited in different application fields with different solving techniques. Then again, complex systems can be only studied by means of different formalisms which codification is the aim of language engineering. Telemaco is a tool that supports a novel approach for the application of graph layout optimizations to heterogeneous models, based on the OsMoSys framework and on the language engineering principles. It can cope with different graph-based formalisms by exploiting either their core graph nature or their different specialized features by means of language hierarchies. In this paper Telemaco is introduced together with its foundations and an example of application to Wireless Sensor Networks (WSN) deployment.
Źródło:: Journal of Telecommunications and Information Technology; 2013, 4; 41-50
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Protocols for Wireless Sensor Networks: A Survey
Autorzy:: Kochhar, A.
Kaur, P.
Singh, P.
Sharma, S.
Powiązania:: https://bibliotekanauki.pl/articles/958098.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: cross-layer
Medium Access Control
protocols
Wireless Sensor Networks
Opis:: This paper presents a survey on the MAC and network layer of Wireless Sensor Networks. Performance requirements of the MAC layer are explored. MAC layer protocols for battery-powered networks and energy harvesting-based networks are discussed and compared. A detailed discussion on design constraints and classification of routing protocols is presented. Several routing protocols are compared in terms of such parameters as: energy consumption, scalability, network lifetime and mobility. Problems that require future research are presented. The cross-layer approach for WSNs is also surveyed.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 1; 77-87
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: Enriching WSN environment with context information
Autorzy:: Konieczny, M.
Powiązania:: https://bibliotekanauki.pl/articles/305246.pdf
Data publikacji:: 2012
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: wireless sensor networks
context-aware systems
data-centric architectures
Opis:: Currently the Internet of Things environment suffer from a variety of unique problems such as low throughput, inadequate support for mobility and notcompatible (and often close) application environments. However, characteristic of physical environment often provides opportunities to address these problems. This paper explores concepts of enriching the WNS environment with context-based information. By context we consider all data available in sensors environment, not only data processed by them. Currently this data are not utilized by sensors, but we think that they can improve overall functionality of the sensor network. We also discuss the practical challenges facing the integration of such an approach into the sensor application stack.
Źródło:: Computer Science; 2012, 13 (4); 101-114
1508-2806
2300-7036
Pojawia się w:: Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: The correlation of water quality parameters over wireless sensors generated dataset in the Sitnica River in Kosovo
Autorzy:: Ahmedi, Figene
Makolli, Shkumbin
Powiązania:: https://bibliotekanauki.pl/articles/28411654.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: monitoring
parameters’ pair
regression analysis
water quality
wireless sensor
Opis:: In this paper, the regression analysis technique is applied to a large water quality dataset for the Sitnica River in Kosovo. It has been done to assess the correlation between water quality parameters. The data are generated by a wireless sensors network deployed in Sitnica. A regression analysis is applied to four water quality parameters: temperature, dissolved oxygen, pH, and electrical conductivity. The correlation between each pair of parameters has been assessed by using the WEKA software package, which is a popular time-saving tool for data analysis in distinct domains. The data are pre-processed to exclude out-of-range values and then the assessment of correlation for the pairs of parameters is applied. In comparison to other pairs of water quality parameters, the results show that dissolved oxygen and electrical conductivity correlate particularly closely with temperature. Regression equations of these two pairs of parameters may provide inferred information on dissolved oxygen and electrical conductivity about the Sitnica River. Such information may otherwise not be available to resource managers in Kosovo. Moreover, due to its easy to use and availability as an open-source software, WEKA may aid decision-makers on the management providing almost real-time information about surface water quality within the basin. This can be particularly useful especially in the case of continuous observation of water quality and a huge dataset gathered by using wireless sensors.
Źródło:: Journal of Water and Land Development; 2023, 59; 8--12
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: K-Means and Fuzzy based Hybrid Clustering Algorithm for WSN
Autorzy:: Angadi, Basavaraj M.
Kakkasageri, Mahabaleshwar S.
Powiązania:: https://bibliotekanauki.pl/articles/27311955.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: wireless sensor networks
cluster
K-Means algorithm
fuzzy logic
Opis:: Wireless Sensor Networks (WSN) acquired a lot of attention due to their widespread use in monitoring hostile environments, critical surveillance and security applications. In these applications, usage of wireless terminals also has grown significantly. Grouping of Sensor Nodes (SN) is called clustering and these sensor nodes are burdened by the exchange of messages caused due to successive and recurring re-clustering, which results in power loss. Since most of the SNs are fitted with nonrechargeable batteries, currently researchers have been concentrating their efforts on enhancing the longevity of these nodes. For battery constrained WSN concerns, the clustering mechanism has emerged as a desirable subject since it is predominantly good at conserving the resources especially energy for network activities. This proposed work addresses the problem of load balancing and Cluster Head (CH) selection in cluster with minimum energy expenditure. So here, we propose hybrid method in which cluster formation is done using unsupervised machine learning based kmeans algorithm and Fuzzy-logic approach for CH selection.
Źródło:: International Journal of Electronics and Telecommunications; 2023, 69, 4; 793--801
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

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

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Skocz do pozycji: 24.

Tytuł:: Energy-aware key management in mobile wireless sensor networks
Autorzy:: He, X.
Szalachowski, P.
Kotulski, Z.
Fotiou, N.
Marias, G. F.
Polyzos, G. C.
Meer de, H.
Powiązania:: https://bibliotekanauki.pl/articles/106190.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: wireless sensor networks
Diffie-Hellman key agreement
key management
Opis:: Wireless sensor networks have received wide attention recently across the indoor and outdoor applications. On the other hand, more and more application scenarios require sensor nodes to be mobile, which imposes new technological challenges for security. Key management is the core for secure data communications among the resource-constrained sensor nodes. In this paper, based on the Group Diffie-Hellman key agreement protocols and the energy level of each node in the network, we propose Energy Aware Group Diffie-Hellman key management protocol for mobile wireless sensor networks. The simulation results show that the proposed key management protocol provide significant improvement in maximizing the lifetime of networks.
Źródło:: Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2012, 12, 4; 83-96
1732-1360
2083-3628
Pojawia się w:: Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

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

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Skocz do pozycji: 26.

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

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Skocz do pozycji: 27.

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

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Skocz do pozycji: 28.

Tytuł:: Optimization of channel access in wireless sensor networks
Autorzy:: Holecko, P.
Pirnik, R.
Bubenikova, E.
Powiązania:: https://bibliotekanauki.pl/articles/393455.pdf
Data publikacji:: 2012
Wydawca:: Polskie Stowarzyszenie Telematyki Transportu
Tematy:: TDMA
optymalizacja
bezprzewodowe sieci sensorowe
optimization
wireless sensor networks
Opis:: The objective of the work presented in this paper is to analyse the problem of deployment of TDMA wireless sensor networks in the area of transport telematics from the communication subsystem optimization perspective. The problem of broadcast scheduling has been outlined and a heuristic algorithm has been designed for the optimization of radio channel access control using the TDMA method. The channel utilization was the main optimization goal while eliminating primary and secondary conflicts between the broadcasting stations.
Źródło:: Archives of Transport System Telematics; 2012, 5, 3; 31-34
1899-8208
Pojawia się w:: Archives of Transport System Telematics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:: Transformatorowe generatory energii do bezprzewodowych sieci samozasilających się czujników w budynkach inteligentnych
Transformer power generators for wireless networks of self-powered sensors in intelligent buildings
Autorzy:: Łuczak, K.
Kozielski, L.
Powiązania:: https://bibliotekanauki.pl/articles/115219.pdf
Data publikacji:: 2014
Wydawca:: Wyższa Szkoła Techniczna w Katowicach
Tematy:: budynek inteligentny
sensor bezprzewodowy
kompozyt polimerowy
smart building
wireless sensor
polimer material
Opis:: W nowoczesnych budynkach bezprzewodowe sensory są stosowane nie tylko do wykrywania dymu, detekcji ruchu i kontroli dostępu ale również do systemów monitorowania bezpieczeństwa strukturalnego budynku w zakresie bezstykowego pomiaru przemieszczeń liniowych i kątowych oraz drgań ich konstrukcji. Ten niezwykle ważny obszar zastosowań wymusza poszukiwania nowych lepszych technologii pozwalających na ich miniaturyzację, co związane jest z eliminacją tradycyjnego bateryjnego zasilania tych urządzeń. Ten aspekt jest w szczególności istotny do monitorowania wibracji zabetonowanych elementów konstrukcyjnych w warunkach środowiskowych uniemożliwiających wymianę zużytych baterii. Polimerowy kompozyt tworzący strukturę transformatora magnetoelektrycznego (ME) składający się z mieszaniny ceramiki piezoelektrycznej i magnetostrykcyjnej w osnowie z materiału polimerowego (Poliamid) został wytworzony z przeznaczeniem d o tego typu aplikacji. Na wskutek oddziaływania pola magnetycznego następuje zmiana ukierunkowania domen ferromagnetycznych w materiale magnetostrykcyjnym powiązana z wytworzeniem naprężeń mechanicznych. Powstałe naprężenia zostają przeniesione przez poliamidową osnowę na materiał piezoelektryczny, gdzie na zasadzie efektu piezoelektrycznego następuje generacja napięcia oraz zmiana jego parametrów elektrycznych. Pomiary współczynników transformacji energii pola magnetycznego na elektryczną przeprowadzano metodą mostkową na podstawie analizy fazowej i amplitudowej impedancji. Wykazano, że praktycznym zastosowaniem otrzymanego transformatora magnetoelektrycznego mogą być generatory energii elektrycznej wykorzystujące w swej zasadzie działania konwersję energii drgań i pola magnetycznego na elektryczną w opisywanym materiale kompozytowym.
In modern smart building wireless sensors applications are used not only for direct smoke and intruder detection but mainly for structural safety of buildings in non-contact measurement of linear and angular displacement as well as construction vibrations. This very important area of applications enforces the search for new and better technologies to their miniaturization, in a first place with elimination of batteries. This aspect is extremely significant in harsh environmental conditions for vibration monitoring of concreted structure. Polymer composite material for magnetoelectric (ME) transformer consisting of a mixture of piezoelectric and the magnetostrictive material in a polyamide matrix (polymer with amid bond) was manufactured for this application and has been tested in an AC magnetic field. The mechanical tensions created from reoriented ferromagnetic domains generate a voltage at the electrodes surfaces due to the piezoelectric effect via tensions transmitted by polyamide matrix. Measurements of these transformation coefficients is carried out by a bridge technique on the basis of the amplitude and phase impedance characteristics. Finally it was demonstrated that the practical application of the created composite can be ME Transformer for voltage generations in wireless sensor network systems.
Źródło:: Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach; 2014, 6; 65-71
2082-7016
2450-5552
Pojawia się w:: Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 30.

Tytuł:: Design and Implementation of Intrusion Detection Systems using RPL and AOVD Protocols-based Wireless Sensor Networks
Autorzy:: Kipongo, Joseph
Swart, Theo G.
Esenogho, Ebenezer
Powiązania:: https://bibliotekanauki.pl/articles/27311845.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: Intrusion Detection Systems
wireless sensor networks
Cooja simulator
sensor nodes
NS2
Opis:: Wireless Sensor Network (WSN) technology has grown in importance in recent years. All WSN implementations need secure data transmission between sensor nodes and base stations. Sensor node attacks introduce new threats to the WSN. As a result, an appropriate Intrusion Detection System (IDS) is required in WSN for defending against security attacks and detecting attacks on sensor nodes. In this study, we use the Routing Protocol for Low Power and Lossy Networks (RPL) for addressing security services in WSN by identifying IDS with a network size of more or less 20 nodes and introducing 10% malicious nodes. The method described above is used on Cooja in the VMware virtual machine Workstation with the InstantContiki2.7 operating system. To track the movement of nodes, find network attacks, and spot dropped packets during IDS in WSN, an algorithm is implemented in the Network Simulator (NS2) using the Ad-hoc On-Demand Distance Vector (AODV) protocol in the Linux operating system.
Źródło:: International Journal of Electronics and Telecommunications; 2023, 69, 2; 309--318
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 31.

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

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Skocz do pozycji: 32.

Tytuł:: Secure Data Aggregation Mechanism based on Constrained Supervision for Wireless Sensor Network
Autorzy:: Wang, Yubo
Li, Liang
Ao, Chen
Zhang, Puning
Wang, Zheng
Zhao, Xinyang
Powiązania:: https://bibliotekanauki.pl/articles/226140.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Wireless Sensor Network
security data aggregation
trust management
constrained supervision
Opis:: The data aggregation process of wireless sensor networks faces serious security problems. In order to defend the internal attacks launched by captured nodes and ensure the reliability of data aggregation, a secure data aggregation mechanism based on constrained supervision is proposed for wireless sensor network, which uses the advanced LEACH clustering method to select cluster heads. Then the cluster heads supervise the behaviors of cluster members and evaluate the trust values of nodes according to the communication behavior, data quality and residual energy. Then the node with the highest trust value is selected as the supervisor node to audit the cluster head and reject nodes with low trust values. Results show that the proposed mechanism can effectively identify the unreliable nodes, guarantee the system security and prolong the network life time.
Źródło:: International Journal of Electronics and Telecommunications; 2019, 65, 2; 259-266
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 33.

Tytuł:: Swarm Intelligence-based Partitioned Recovery in Wireless Sensor Networks
Autorzy:: Kumar, G.
Ranga, V.
Powiązania:: https://bibliotekanauki.pl/articles/307759.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: connectivity restoration
meta-heuristics
relay node placement
wireless sensor networks
Opis:: The failure rate of sensor nodes in Heterogeneous Wireless Sensor Networks is high due to the use of low battery-powered sensor nodes in a hostile environment. Networks of this kind become non-operational and turn into disjoint segmented networks due to large-scale failures of sensor nodes. This may require the placement of additional highpower relay nodes. In this paper, we propose a network partition recovery solution called Grey Wolf, which is an optimizer algorithm for repairing segmented heterogeneous wireless sensor networks. The proposed solution provides not only strong bi-connectivity in the damaged area, but also distributes traﬃc load among the multiple deployed nodes to enhance the repaired network’s lifetime. The experiment results show that the Grey Wolf algorithm oﬀers a considerable performance advantage over other state-of-the-art approaches.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 3; 70-81
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 34.

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

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Skocz do pozycji: 35.

Tytuł:: A simple and affordable powering circuit for IoT sensor nodes with energy harvesting
Autorzy:: Bouřa, Adam
Powiązania:: https://bibliotekanauki.pl/articles/1849152.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: energy harvesting
energy management
Internet of Things
wireless sensor networks
Opis:: The paper presents a circuit structure that can be used for powering an IoT (Internet of Things) sensor node and that can use energy just from its surroundings. The main advantage of the presented solution is its very low cost that allows mass applicability e.g. in the IoT smart grids and ubiquitous sensors. It is intended for energy sources that can provide enough voltage but that can provide only low currents such as piezoelectric transducers or small photovoltaic panels (PV) under indoor light conditions. The circuit is able to accumulate energy in a capacitor until a certain level and then to pass it to the load. The presented circuit exhibits similar functionality to a commercially available EH300 energy harvester (EH). The paper compares electrical properties of the presented circuit and the EH300 device, their form factors and costs. The EH circuit’s performance is tested together with an LTC3531 buck-boost DC/DC converter which can provide constant voltage for the following electronics. The paper provides guidelines for selecting an optimal capacity of the storage capacitor. The functionality of the solution presented is demonstrated in a sensor node that periodically transmits measured data to the base station using just the power from the PV panel or the piezoelectric generator. The presented harvester and powering circuit are compact part of the sensor node’s electronics but they can be also realized as an external powering module to be added to existing solutions.
Źródło:: Metrology and Measurement Systems; 2020, 27, 4; 575-587
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 36.

Tytuł:: Nowa koncepcja w pełni adaptacyjnego protokołu rutowania dla bezprzewodowych sieci sensorycznych (2)
A novel idea of fully adaptable routing protocol for wireless sensor networks (2)
Autorzy:: Czapski, P. P.
Powiązania:: https://bibliotekanauki.pl/articles/275135.pdf
Data publikacji:: 2010
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: bezprzewodowe sieci sensoryczne
protokoły rutowania
wireless sensor networks
routing protocols
Opis:: Na wstępie przedstawiono ogólne założenia do w pełni adaptacyjnego protokołu rutowania. Następnie zamieszczono opis badań (ilościowych i jakościowych) nad nowym protokołem a potrzebnych do zbudowania algorytmu rutowania. Artykuł zakończony jest wnioskami (w odniesieniu do obu części) i wskazane zostały potencjalne kierunki dalszych badań nad protokołami adaptacyjnymi. Bezprzewodowe sieci sensoryczne - BSS (ang. wireless sensor network - WSN) są coraz częściej stosowane do obserwowania czynników środowiskowych (zastosowania militarne i cywilne). Rozwój technologii pozwala obecnie na wytwarzanie węzłów o wymiarach rzędu centymetrów i w cenie poniżej kilku USD za sztukę, a co za tym idzie, na stosowanie ich w dużych ilościach. Odczyty z sensorów są zazwyczaj agregowane lub przekazywane (w surowej formie lub poddane niezbędnej redukcji objętości) do obserwatora. Mimo to nadal brakuje wydajnych protokołów rutowania, zarówno z punktu widzenia energooszczędności, jak i pełnej adaptacyjności do zmieniających się warunków pracy. W dwuczęściowym artykule przedstawiono nowatorską koncepcję w pełni adaptacyjnego protokołu rutowania, którego funkcjonowanie będzie zależne tylko i wyłącznie od odczytów sensorycznych (tj. od jakości i ilości zdarzeń). W drugiej części artykułu zamieszczono założenia do takiego protokołu oraz do badań proponowanego rozwiązania.
First, we introduce to general assumptions to fully adaptive routing protocol for wireless sensor network. Then, we give experiment description required to conduct analysis on our proposed novel routing algorithm. Finally, we conclude our analysis on fully adaptive routing protocol and propose other feasible directions of development of such routing algorithms.
Źródło:: Pomiary Automatyka Robotyka; 2010, 14, 1; 5-9
1427-9126
Pojawia się w:: Pomiary Automatyka Robotyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:: How the Role-Based Trust Management Can Be Applied to Wireless Sensor Networks
Autorzy:: Felkner, A.
Powiązania:: https://bibliotekanauki.pl/articles/307588.pdf
Data publikacji:: 2012
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: access control
role-based trust management
trust
wireless sensor networks
Opis:: Trust plays an important role in human life environments. That is why the researchers has been focusing on it for a long time. It allows us to delegate tasks and decisions to an appropriate person. In social sciences trust between humans was studied, but it also was analyzed in economic transactions. A lot of computer scientists from different areas, like security, semantic web, electronic commerce, social networks tried to transfer this concept to their domains. Trust is an essential factor in any kind of network, whether social or computer. Wireless sensor networks (WSN) are characterized by severely constrained resources, they have limited power supplies, low transmission bandwidth, small memory sizes and limited energy, therefore security techniques used in traditional wired networks cannot be adopted directly. Some effort has been expended in this fields, but the concept of trust is defined in slightly different ways by different researchers. In this paper we will show how the family of Role-based Trust management languages (RT) can be used in WSN. RT is used for representing security policies and credentials in decentralized, distributed access control systems. A credential provides information about the privileges of users and the security policies issued by one or more trusted authorities.
Źródło:: Journal of Telecommunications and Information Technology; 2012, 4; 70-77
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 38.

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

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Skocz do pozycji: 39.

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

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Skocz do pozycji: 40.

Tytuł:: Analysis and Design of Colpitts Oscillator for Short-range WSN
Autorzy:: Yousefi, M.
Powiązania:: https://bibliotekanauki.pl/articles/227218.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: short-range wireless sensor networks
Colpitts oscillator
high efficiency
transmitter
Opis:: In this paper, analysis and design of colpitts oscillator with ability to transmit data at low output power with application in short-range wireless sensor networks such as MICS is described. Reducing the area required to implement the transmitter, on-chip implementation and appropriate energy efficiency are the advantages of this structure that makes it suitable for the design of short-range transmitter in biomedical applications. The proposed OOK transmitter works at 405MHz with 10 Mbps data rate. Output power and total power consumption are 25 μW and 726 μW, respectively. Energy efficiency is 72.6 pJ/bit. The transmitter has been designed and simulated in 0.18 μm CMOS technology.
Źródło:: International Journal of Electronics and Telecommunications; 2016, 62, 3; 279-282
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:: Wykorzystanie standardu LoRaWAN do budowy bezprzewodowych sieci sensorowych w inteligentnych budynkach
Creating wireless sensor networks in intelligent buildings using LoRaWAN standard
Autorzy:: Koperski, B.
Nowak, M.
Szymborska, A.
Powiązania:: https://bibliotekanauki.pl/articles/302970.pdf
Data publikacji:: 2016
Wydawca:: Wydawnictwo Druk-Art
Tematy:: inteligentny budynek
bezprzewodowa sieć sensorowa
komunikacja bezprzewodowa
intelligent building
wireless sensor
wireless communication
Opis:: W artykule opisano nowy standard komunikacji bezprzewodowej LoRaWAN. Przedstawiono możliwości wykorzystania sieci LoRa oraz korzyści wynikające z zastosowania standardu w zakresie komunikacji bezprzewodowej, dedykowanej między innymi dla IoT (Internet of Things). Dokonano porównania LoRaWAN z istniejącymi i wykorzystywanymi obecnie standardami komunikacji bezprzewodowej. Przedstawiono jedno z możliwych zastosowań sieci LoRaWAN do budowy bezprzewodowych sieci sensorowych instalowanych w inteligentnych budynkach.
In this article new wireless communication standard called LoRaWAN was characterised. Possibilities of usage and benefits of wireless communication using LoRa for IoT (Internet of Things) were presented. The LoRaWAN was compared to other wireless communication standards currently used. An example usage of LoRaWAN in intelligent buildings was described.
Źródło:: Napędy i Sterowanie; 2016, 18, 6; 120-123
1507-7764
Pojawia się w:: Napędy i Sterowanie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:: A new method for localization of wireless sensor networks based on path planning of mobile robots
Autorzy:: Ashoori, E
Babagoli, I
Alipour, S
Powiązania:: https://bibliotekanauki.pl/articles/102577.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: sensor nodes
localization
global positioning system (GPS)
wireless sensor network (WSN)
graph theory
Opis:: With an explosive growth of wireless sensor networks (WSN), many of their features and applications have become important. Localization of sensor nodes is one of the most important problems in WSN whose accuracy has a very large impact on its performance. Global positioning system (GPS) is a well-known and powerful way which differentiates methods of its use on each node individually. But, because of high energy consuming and processing GPS, it is inappropriate for WSNs. Different algorithms are suggested to overcome the consumed cost of GPS by putting GPS on only some nodes instead of all nodes in the network for localization. So, for nodes localization, just a number of nodes exploit GPS and, they can help other nodes of network in localization via distribution of their coordinates. The use of a mobile robot to send signals to coordinate the target node localization is a good idea. The mobile robot should move in the right path and can localize node more accurately at lower cost. This paper proposes a new method to localize all nodes through some localized nodes based on graph theory in a tree and network topology. The proposed method provides better performance at the cost of accuracy and the number of nodes that can be made up of local consumption.
Źródło:: Advances in Science and Technology. Research Journal; 2015, 9, 28; 10-17
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 43.

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

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Skocz do pozycji: 44.

Tytuł:: Energy Aware Location Based Routing Protocols in Wireless Sensor Networks
Autorzy:: Guleria, Kalpna
Kumar, Sushil
Verma, Anil Kumar
Powiązania:: https://bibliotekanauki.pl/articles/1063060.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Energy Efficiency
Location based Routing
Routing metrics
Wireless Sensor Networks
ing
Opis:: Wireless Sensor Networks have played a great role in various application domains like environmental tracking for precision agriculture, structural health monitoring, patient health monitoring, intrusion detection, earthquake or volcano prediction and industrial monitoring etc. The major design issues to be dealt in Wireless sensor networks (WSNs) are its resource constraint nature, limited network lifetime and scalability. The most stringent of all is energy consumption and battery life which actually limits the network lifetime. This paper presents various energy aware location based routing protocols and in depth comparison based on various characteristics such as routing selection method, data aggregation, routing metrics, periodic message type, scalability, energy efficiency, robustness, event/query based and strengths.
Źródło:: World Scientific News; 2019, 124, 2; 326-333
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:: Smart Agriculture Monitoring using Energy Harvesting Internet of Things (EH-IoT)
Autorzy:: Sharma, Himanshu
Haque, Ahteshamul
Jaffery, Zainul Abdin
Powiązania:: https://bibliotekanauki.pl/articles/1075545.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Agriculture monitoring
Internet of Things
Solar Energy Harvesting
Wireless Sensor Networks
Opis:: The internet of Things (IoT) are now a days being used for the smart agriculture monitoring and control applications. Small wireless sensor networks (WSN) are used as IoT nodes in agriculture monitoring which is very much similar to those used in Industries, Process control, Building Automation and Security Systems. In this paper, we propose IoT sensor nodes which are powered by solar energy are used for monitoring and control of agriculture fields. The monitoring and control in agriculture fileds include operations like crops managements, crops harvesting, water supply control, animal control, pesticide distribution, humidity and temperature measurement applications.
Źródło:: World Scientific News; 2019, 121; 17-21
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:: Developments on an IEEE 802.15.4-based wireless sensor network
Autorzy:: Scheers, B.
Mees, W.
Lauwens, B.
Powiązania:: https://bibliotekanauki.pl/articles/308225.pdf
Data publikacji:: 2008
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: wireless sensor networks
IEEE 802.15.4
effective data capacity
positioning
Opis:: In this paper a summary is given of the ongoing research at the Belgian Royal Military Academy in the field of mobile ad hoc networks in general and wireless sensor networks (WSNs) in particular. In this study, all wireless sensor networks are based on the physical and the medium access layer of the IEEE 802.15.4 low rate wireless personal area networks standard. The paper gives a short overview of the IEEE 802.15.4 standard in the beaconless mode together with a description of the sensor nodes and the software used throughout this work. The paper also reports on the development of a packet sniffer for IEEE 802.15.4 integrated in wireshark. This packet sniffer turns out to be indispensable for debugging purposes. In view of future applications on the wireless network, we made a theoretical study of the effective data capacity and compared this with measurements performed on a real sensor network. The differences between measurements and theory are explained. In case of geograph- ically meaningful sensor data, it is important to have a knowledge of the relative position of each node. In the last part of the paper we present some experimental results of positioning based on the received signal strength indicators (RSSI). As one could expect, the accuracy of such a method is poor, even in a well controlled environment. But the method has some potential.
Źródło:: Journal of Telecommunications and Information Technology; 2008, 2; 46-53
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 47.

Tytuł:: Comparative Study of Wireless Sensor Networks Energy-Efficient Topologies and Power Save Protocols
Autorzy:: Niewiadomska-Szynkiewicz, E.
Kwaśniewski, P.
Windyga, I.
Powiązania:: https://bibliotekanauki.pl/articles/309032.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
energy conservation protocols
topology control
wireless sensor network
Opis:: Ad hoc networks are the ultimate technology in wireless communication that allow network nodes to communicate without the need for a fixed infrastructure. The paper addresses issues associated with control of data transmission in wireless sensor networks (WSN) - a popular type of ad hoc networks with stationary nodes. Since the WSN nodes are typically battery equipped, the primary design goal is to optimize the amount of energy used for transmission. The energy conservation techniques and algorithms for computing the optimal transmitting ranges in order to generate a network with desired properties while reducing sensors energy consumption are discussed and compared through simulations. We describe a new clustering based approach that utilizes the periodical coordination to reduce the overall energy usage by the network.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 3; 68-75
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:: Multiobjective Approach to Localization in Wireless Sensor Networks
Autorzy:: Marks, M.
Niewiadomska-Szynkiewicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/309060.pdf
Data publikacji:: 2009
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ad hoc networks
localization
simulated annealing
stochastic optimization
wireless sensor network
Opis:: Wireless sensor network localization is a complex problem that can be solved using different types of methods and algorithms. Nowadays, it is a popular research topic. What becomes obvious is that there are several criteria which are essential when we consider wireless sensor networks. Our objective is to determine accurate estimates of nodes location under the constraints for hardware cost, energy consumption and computation capabilities. In this paper the application of stochastic optimization for performing localization of nodes is discussed. We describe two phase scheme that uses a combination of the trilateration method, along with the simulated annealing optimization algorithm. We investigate two variants of our technique, i.e., centralized and distributed. The attention is paid to the convergence of our algorithm for different network topologies and trade-off between its efficiency and localization accuracy.
Źródło:: Journal of Telecommunications and Information Technology; 2009, 3; 59-67
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 49.

Tytuł:: NS2 - jako środowisko symulacyjne do badań nad bezprzewodowymi sieciami sensorowymi
NS2 - a simulation environment for research on wireless sensor networks
Autorzy:: Kowal, B.
Dymora, P.
Mazurek, M.
Powiązania:: https://bibliotekanauki.pl/articles/194252.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: sensory
WSN
NS2
bezprzewodowa sieć sensorowa
sensors
wireless sensor network
Opis:: Wraz z rozwojem bezprzewodowych systemów sensorowych rośnie zainteresowanie Internetem Rzeczy (ang. Internet of Things). Celem artykułu jest przybliżenie możliwości jakie dostarcza środowisko symulacyjne NS2 do badań nad bezprzewodowymi sieciami sensorowymi. W artykule opisano symulator sieci NS2, scharakteryzowano główne funkcje symulatora, przedstawiono i opisano przykładowy proces budowy skryptu sieci WSN oraz analizę wyników symulacji testowanej sieci.
Nowadays, with the growing interest in the Internet of Things, in most cases sensor network technology is used. The purpose of this article is to introduce the readers to the possibilities that provides the NS2 simulation environment for the study of wireless sensor networks. The article describes the network simulator NS2, characterized the most essential functions that it meets. In this article will be described a diagram of the WSN networks script, and how to correctly read the results obtained from the simulation.
Źródło:: Zeszyty Naukowe Politechniki Rzeszowskiej. Elektrotechnika; 2017, z. 36 [296], nr 3, 3; 19-29
0209-2662
2300-6358
Pojawia się w:: Zeszyty Naukowe Politechniki Rzeszowskiej. Elektrotechnika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:: Zastosowanie bezprzewodowych sieci sensorowych w lokalizacji zwarć doziemnych linii napowietrznych SN
The use of wireless sensor networks in ground fault location system for MV overhead power line
Autorzy:: Eljasz, D.
Urbański, P.
Powiązania:: https://bibliotekanauki.pl/articles/151994.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: lokalizator zwarć doziemnych
sieci sensorowe
ground fault location
wireless sensor networks
Opis:: Zwarcia w liniach SN są bardzo częstymi zjawiskami. Skutki związane ze zwarciami to zagrożenie dla sprzętu i personelu. W artykule przedstawiono ideę wykrywania i lokalizacji zwarć doziemnych z wykorzystaniem sieci sensorowych. Badania przeprowadzono z wykorzystaniem sensorów opracowanych w firmie Relpol S.A. zakład Polon.
Ground fault on MV overhead power line are very common phenomena. Effects associated with this kind of fault are overcurrent, overvoltage causing danger to equipment and personnel. Typical protection algorithms may not be effective for intermittent faults. In the article a prototype solution-based fault locator base on sensor networks arranged along a power line [2] (Fig 1, 2) are presented. The measurement data are transmitted via radio link to a central point (gateway), and then base of them, fault location is made. In chapter 3 a prototype node for ground fault detecting (Fig. 3) developed at RELPOL S.A. division Polon are presented. In this same chapter the results of tests wireless connectivity like transmission range (Tab. 1, Figure 4), communication delay contributed by node depending on the transmission speed and connection stability (Tab. 2, Fig. 6, 7) are describe. At the end of the article a brief summary of the developed system are made.
Źródło:: Pomiary Automatyka Kontrola; 2014, R. 60, nr 11, 11; 960-962
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Dostawca treści:: Biblioteka Nauki

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