Relevant bibliographies by topics / Sensors and systems (excl. communications)

Academic literature on the topic 'Sensors and systems (excl. communications)'

Author: Grafiati
Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Sensors and systems (excl. communications)"

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Li-Ling Hung, Li-Ling Hung. "Intelligent Sensing for Internet of Things Systems." 網際網路技術學刊 23, no. 1 (January 2022): 187–93. http://dx.doi.org/10.53106/160792642022012301019.

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<p>The Internet of things (IoT) has been used for many applications. These applications are accomplished by numerous sensors that detect and share information. When people use the detected information in an IoT system to improve the performance of services, also called the intelligence of the system, this type of IoT is named artificial intelligence of things. This paper proposes a model for improving the flexibility of sensors to enhance the intelligence of IoT. The model defines the quality levels of events and monitoring data for all types of monitoring. In the model, the data or events with different levels have different transmission priority. To reduce energy consumption of detection and transmission, the detecting period of sensors can be set to be longer when the monitored status is normal. In the model application, the sensors shorten the event detection and reaction times. Therefore, the efficiency of monitoring is enhanced. The evaluation demonstrates that the event detection and response times of the proposed mechanism are better than those of other mechanisms. </p> <p>&nbsp;</p>
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Shang, Yi, Hongchi Shi, Ying Zhang, and Christophe Guettier. "Distributed systems of sensors and actuators." Wireless Communications and Mobile Computing 9, no. 3 (March 2009): 283–85. http://dx.doi.org/10.1002/wcm.752.

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Everard, J. K. A., and M. A. Page-Jones. "All-optical remote switching for multiplexed optical fiber sensors and communications systems." Journal of Lightwave Technology 13, no. 7 (July 1995): 1277–81. http://dx.doi.org/10.1109/50.400687.

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Briso-Rodríguez, César, Ke Guan, Yin Xuefeng, and Thomas Kürner. "Wireless Communications in Smart Rail Transportation Systems." Wireless Communications and Mobile Computing 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/6802027.

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Railway, subway, airplane, and other transportation systems have drawn an increasing interest on the use of wireless communications for critical and noncritical services to improve performance, reliability, and passengers experience. Smart transportation systems require the use of critical communications for operation and control, and wideband services can be provided using noncritical communications. High speed train (HST) is one of the best test cases for the analysis of communication links and specification of the general requirements for train control and supervision, passenger communications, and onboard and infrastructure wireless sensors. In this paper, we analyze in detail critical and noncritical networks mainly using the HST as a test case. First, the different types of links for smart rail transportation are described, specifying the main requirements of the transportation systems, communications, and their applications for different services. Then, we propose a network architecture and requirements of the communication technologies for critical and noncritical data. Finally, an analysis is made for the future technologies, including the fifth-generation (5G) communications, millimeter wave (mmWave), terahertz (THz), and satellites for critical and high-capacity communications in transportation.
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Carramiñana, David, Iván Campaña, Luca Bergesio, Ana M. Bernardos, and Juan A. Besada. "Sensors and Communication Simulation for Unmanned Traffic Management." Sensors 21, no. 3 (January 30, 2021): 927. http://dx.doi.org/10.3390/s21030927.

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Unmanned traffic management (UTM) systems will become a key enabler to the future drone market ecosystem, enabling the safe concurrent operation of both manned and unmanned aircrafts. Currently, these systems are usually tested by performing real scenarios that are costly, limited, hardly scalable, and poorly repeatable. As a solution, in this paper we propose an agent-based simulation platform, implemented through a micro service architecture, which may simulate UTM information sources, such as flight plans, telemetry messages, or tracks from a surveillance network. The final objective of this simulator is to use these information streams to perform a system-level evaluation of UTM systems both in the pre-flight and in-flight stages. The proposed platform, with a focus on simulation of communications and sensors, allows to model UTM actors’ behaviors and their interactions. In addition, it also considers the manual definition of events to simulate unexpected behaviors/events (contingencies), such as communications failures or pilots’ actions. In order to validate our architecture, we implemented a simulator that considers the following actors: drones, pilots, ground control stations, surveillance networks, and communications networks. This platform enables the simulation of the drone trajectory and control, the C2 (command and control) link, drone detection by surveillance sensors, and the communication of all agents by means of a mobile communications network. Our results show that it is possible to truthfully recreate complex scenarios using this simulator, mitigating the disadvantages of real testbeds.
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Tzoumas, Vasileios, Yuankun Xue, Sergio Pequito, Paul Bogdan, and George J. Pappas. "Selecting Sensors in Biological Fractional-Order Systems." IEEE Transactions on Control of Network Systems 5, no. 2 (June 2018): 709–21. http://dx.doi.org/10.1109/tcns.2018.2809959.

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REYNERI, L. M., M. CHIABERGE, and D. DEL CORSO. "USING COHERENT PULSE WIDTH AND EDGE MODULATIONS IN ARTIFICIAL NEURAL SYSTEMS." International Journal of Neural Systems 04, no. 04 (December 1993): 407–18. http://dx.doi.org/10.1142/s012906579300033x.

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This paper describes an existing silicon implementation of an artificial neural system based on coherent pulse width and edge modulation techniques. A chip set with different neural functions has been conceived, manufactured and tested. Neural circuits have been optimized for lowest computation energy and highest reconfigurability. The main device is a 32 × 32 synaptic array consuming 10 mW of power at 140 MCPS. Synapsis size is about 7.200 μ m 2 using a standard 1.5 μm CMOS technology. The problem of interfacing robotic sensors and actuators is addressed: voltage, current and resistance-based sensors are considered for the measurement of physical quantities such as temperature, pressure, strain, etc. Low resolution imaging sensors for robotic vision are also considered.
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Faye, Sébastien, Walter Bronzi, Ibrahim Tahirou, and Thomas Engel. "Characterizing user mobility using mobile sensing systems." International Journal of Distributed Sensor Networks 13, no. 8 (August 2017): 155014771772631. http://dx.doi.org/10.1177/1550147717726310.

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Recent technological advances and the ever-greater developments in sensing and computing continue to provide new ways of understanding our daily mobility. Smart devices such as smartphones or smartwatches can, for instance, provide an enhanced user experience based on different sets of built-in sensors that follow every user action and identify its environment. Monitoring solutions such as these, which are becoming more and more common, allows us to assess human behavior and movement at different levels. In this article, extended from previous work, we focus on the concept of human mobility and explore how we can exploit a dataset collected opportunistically from multiple participants. In particular, we study how the different sensor groups present in most commercial smart devices can be used to deliver mobility information and patterns. In addition to traditional motion sensors that are obviously important in this field, we are also exploring data from physiological and environmental sensors, including new ways of displaying, understanding, and analyzing data. Furthermore, we detail the need to use methods that respect the privacy of users and investigate the possibilities offered by network traces, including Wi-Fi and Bluetooth communication technologies. We finally offer a mobility assistant that can represent different user characteristics anonymously, based on a combination of Wi-Fi, activity data, and graph theory.
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He, Liang, Linghe Kong, Jun Tao, Jingdong Xu, and Jianping Pan. "On-Demand Mobile Data Collection in Cyber-Physical Systems." Wireless Communications and Mobile Computing 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/5913981.

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The collection of sensory data is crucial for cyber-physical systems. Employing mobile agents (MAs) to collect data from sensors offers a new dimension to reduce and balance their energy consumption but leads to large data collection latency due to MAs’ limited velocity. Most existing research effort focuses on the offline mobile data collection (MDC), where the MAs collect data from sensors based on preoptimized tours. However, the efficiency of these offline MDC solutions degrades when the data generation of sensors varies. In this paper, we investigate the on-demand MDC; that is, MAs collect data based on the real-time data collection requests from sensors. Specifically, we construct queuing models to describe the First-Come-First-Serve-based MDC with a single MA and multiple MAs, respectively, laying a theoretical foundation. We also use three examples to show how such analysis guides online MDC in practice.
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Al-Lawati, Ali, and Hadj Bourdoucen. "Integration of FBG Strain Sensors in WDM Networks, Effects on Quality Factor." Journal of Engineering Research [TJER] 6, no. 1 (June 1, 2009): 46. http://dx.doi.org/10.24200/tjer.vol6iss1pp46-50.

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A study of the effect of integrating an FBG sensor in a four wavelength WDM communications system operating at 1550 nm is presented. The simulations considered focus on the mutual effects of both the sensing and the communications systems. The effect of power levels of the interrogating optical source on the performance of the two systems is also investigated under excitation levels of up to 10 dBm. The network layout used in the simulations is based on an actual optical link in Oman having a variety of spans. The results obtained at data rates of 2.5 and 10 Gbps with variable strains up to ±600 μs show a good tolerance in terms of quality of transmission for the two systems. However, the greater the strain values, the more noticeable are the degradations of transmission quality parameters of the communications system.
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Dissertations / Theses on the topic "Sensors and systems (excl. communications)"

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Gonçalves, João Miguel Ribeiro. "Context-awareness privacy in data communications." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15760.

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Doutoramento em Informática
Internet users consume online targeted advertising based on information collected about them and voluntarily share personal information in social networks. Sensor information and data from smart-phones is collected and used by applications, sometimes in unclear ways. As it happens today with smartphones, in the near future sensors will be shipped in all types of connected devices, enabling ubiquitous information gathering from the physical environment, enabling the vision of Ambient Intelligence. The value of gathered data, if not obvious, can be harnessed through data mining techniques and put to use by enabling personalized and tailored services as well as business intelligence practices, fueling the digital economy. However, the ever-expanding information gathering and use undermines the privacy conceptions of the past. Natural social practices of managing privacy in daily relations are overridden by socially-awkward communication tools, service providers struggle with security issues resulting in harmful data leaks, governments use mass surveillance techniques, the incentives of the digital economy threaten consumer privacy, and the advancement of consumergrade data-gathering technology enables new inter-personal abuses. A wide range of fields attempts to address technology-related privacy problems, however they vary immensely in terms of assumptions, scope and approach. Privacy of future use cases is typically handled vertically, instead of building upon previous work that can be re-contextualized, while current privacy problems are typically addressed per type in a more focused way. Because significant effort was required to make sense of the relations and structure of privacy-related work, this thesis attempts to transmit a structured view of it. It is multi-disciplinary - from cryptography to economics, including distributed systems and information theory - and addresses privacy issues of different natures. As existing work is framed and discussed, the contributions to the state-of-theart done in the scope of this thesis are presented. The contributions add to five distinct areas: 1) identity in distributed systems; 2) future context-aware services; 3) event-based context management; 4) low-latency information flow control; 5) high-dimensional dataset anonymity. Finally, having laid out such landscape of the privacy-preserving work, the current and future privacy challenges are discussed, considering not only technical but also socio-economic perspectives.
Quem usa a Internet vê publicidade direccionada com base nos seus hábitos de navegação, e provavelmente partilha voluntariamente informação pessoal em redes sociais. A informação disponível nos novos telemóveis é amplamente acedida e utilizada por aplicações móveis, por vezes sem razões claras para isso. Tal como acontece hoje com os telemóveis, no futuro muitos tipos de dispositivos elecónicos incluirão sensores que permitirão captar dados do ambiente, possibilitando o surgimento de ambientes inteligentes. O valor dos dados captados, se não for óbvio, pode ser derivado através de técnicas de análise de dados e usado para fornecer serviços personalizados e definir estratégias de negócio, fomentando a economia digital. No entanto estas práticas de recolha de informação criam novas questões de privacidade. As práticas naturais de relações inter-pessoais são dificultadas por novos meios de comunicação que não as contemplam, os problemas de segurança de informação sucedem-se, os estados vigiam os seus cidadãos, a economia digital leva á monitorização dos consumidores, e as capacidades de captação e gravação dos novos dispositivos eletrónicos podem ser usadas abusivamente pelos próprios utilizadores contra outras pessoas. Um grande número de áreas científicas focam problemas de privacidade relacionados com tecnologia, no entanto fazem-no de maneiras diferentes e assumindo pontos de partida distintos. A privacidade de novos cenários é tipicamente tratada verticalmente, em vez de re-contextualizar trabalho existente, enquanto os problemas actuais são tratados de uma forma mais focada. Devido a este fraccionamento no trabalho existente, um exercício muito relevante foi a sua estruturação no âmbito desta tese. O trabalho identificado é multi-disciplinar - da criptografia à economia, incluindo sistemas distribuídos e teoria da informação - e trata de problemas de privacidade de naturezas diferentes. À medida que o trabalho existente é apresentado, as contribuições feitas por esta tese são discutidas. Estas enquadram-se em cinco áreas distintas: 1) identidade em sistemas distribuídos; 2) serviços contextualizados; 3) gestão orientada a eventos de informação de contexto; 4) controlo de fluxo de informação com latência baixa; 5) bases de dados de recomendação anónimas. Tendo descrito o trabalho existente em privacidade, os desafios actuais e futuros da privacidade são discutidos considerando também perspectivas socio-económicas.
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Lebreton, Jean Mickaël. "Systèmes et protocoles de télé-réveil appliqués à l’optimisation énergétique des réseaux de capteurs sans fil." Thesis, La Réunion, 2017. http://www.theses.fr/2017LARE0014/document.

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De nos jours, une forte croissance des objets connectés est constatée, dépassant même la population mondiale. Devant l'ampleur de ce phénoméne, l'efficacité énergétique des objets communicants est une sérieuse problématique. La maximisation de leur durée de vie est requise pour assurer une qualité de service. Dans cette optique, les travaux de cette thèse visent à optimiser la consommation énergétique des communications sans fil dans un réseau de capteurs. Le télé-réveil, un concept imaginé depuis une dizaine d'années, consiste au déclenchement du réveil du noeud communicant par un signal radio à distance. Par défaut, le noeud reste en mode veille de façon permanente à très basse consommation. Au besoin, il peut être réveillé à la demande par un signal radio spécifique. Ainsi, la consommation énergétique du module radio est grandement réduite par l'écoute passive du canal en mode veille. Ce principe de télé-réveil nécessite toutefois le développement de nouvelles architectures matérielles associées à des protocoles de communication adaptés et innovants. Malgré les propositions récentes, le niveau de maturité technologique n'a pas encore été atteint sur ce sujet. Par conséquent, un système de télé-réveil est proposé dans cette thèse, en incluant une caractérisation théorique de ses performances. Le récepteur de télé-réveil consomme 363 nW en mode veille contre 49,8 µW en mode de réception. De plus, deux nouveaux protocoles de télé-réveil DoRa et DC-DoRa sont proposés avec une évaluation de leurs performances par simulation. Les résultats obtenus montrent que ces protocoles de télé-réveil diminuent fortement l'énergie consommée par le module radio, en comparaison des protocoles MAC actuellement utilisés dans les réseaux de capteur. Enfin, la mise en œuvre expérimentale du système et des protocoles de télé-réveil a permis de mesurer les performances réelles de notre approche dans un environnement de surécoute et d'interférence
Nowadays, a significant growth of connected things is observed, exceeding even the worldpopulation. Given the magnitude of this phenomenon, the energy efficiency of communicatingobjects is a crucial issue. Maximizing their lifetime is necessary to ensure a qualityof service. In this regard, the aim of this thesis is to optimize the energy consumption ofwireless communications in a wireless sensor network.The concept of wake-up radio was created a decade ago, which consists of waking up thecommunicating node by a remote radio signal. By default, the node remains in sleepingmode at a very low power consumption. If needed, the node can be woken up on demandthrough a specific radio signal. Thus, the energy consumption of the radio module is greatlyreduced by idle listening to the channel in sleeping mode. However, this wake-up radioprinciple requires the development of new hardware architectures associated with adaptedand innovative communication protocols. Despite recent proposals, the level of technologymaturity has not yet been reached on this subject.Therefore, a wake-up radio system is proposed in this thesis, including a theoreticalcharacterization of its performances. The wake-up receiver consumes 363 nW in sleepingmode and 49.8 µW in receiving mode. Moreover, two new protocols called DoRa and DC-DoRaare proposed with an evaluation of their performances by simulation. The resultsshow that these wake-up radio protocols greatly reduce the energy consumed by the radiomodule, compared to the MAC protocols currently used in wireless sensor networks. Finally,the experimental implementation of the wake-up radio system and protocols enabled thereal performance measurement of our approach in an environment with overhearing andinterference
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Kelso, Ross. "Open access to next generation broadband." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/12663/1/12663a.pdf.

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Wireline telecommunications infrastructure in the customer access network or CAN is undergoing a veritable technological and commercial revolution. The paired-copper CAN is being modernised with optical fibre deployed ever closer to customers, culminating soon with fibre-to-the-home networks or some variant thereof. Although bandwidth ceases to be a scarce commodity, the underlying natural monopoly will most likely be strengthened. National competition policy desires open access to multiple service providers yet commercial pressure calls for closure. This has been the recent experience with the hybrid fibre coaxial networks delivering pay television and Internet access. This research asks the question: What are the factors that prevent open access to the broadband services of next generation wireline infrastructure? How can these obstacles be overcome? A particular focus is given to non-price considerations which come to the fore due to the unique strategic and technological characteristics of optical fibre in the access network. The methodological approach involves data gathering via three case studies - that of the Telstra/Foxtel pay television network, the TransACT broadband network and fibre-to-the-home networks in general. Although the ultimate focus is on the research question above, these cases are discussed in a holistic way with consideration of a number of contextual factors. The research also examines the relationship between the concepts of ‘open access’ and ‘network neutrality’, visiting the concept of ‘common carriage’ in doing so. Several findings are reached that illuminate the field of telecommunications access regulation as applied to infrastructure capable of delivering truly next generation broadband services. Since 1993, our politicians have only paid lip service to the importance of competition and have deferred to the demands of the dominant builder of telecommunications infrastructure. From the viewpoints of end-users and access seekers, the access regime is found to be incapable of dealing with the technical and commercial bottlenecks arising from optical fibre in the CAN. It is concluded that communication between users should be recognised as the prime purpose of telecommunications and that the regulatory regime should not reward discriminatory practices detracting from the development of a networked information economy. It is also concluded that dominant players should never be rewarded with access holidays which could otherwise entrench market dominance through the creation of new bottlenecks. Access regulation is ill-equipped to cope with optical fibre in the CAN until it also recognizes the strategic potential of such infrastructure.
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Sandberg, Henrik, Maben Rabi, Mikael Skoglund, and Karl Henrik Johansson. "Estimation over heterogeneous sensor networks." KTH, ACCESS Linnaeus Centre, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-30325.

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Design trade-offs between estimation performance, processing delay and communication cost for a sensor scheduling problem is discussed. We consider a heterogeneous sensor network with two types of sensors: the first type has low-quality measurements, small processing delay and a light communication cost, while the second type is of high quality, but imposes a large processing delay and a high communication cost. Such a heterogeneous sensor network is common in applications, where for instance in a localization system the poor sensor can be an ultrasound sensor while the more powerful sensor can be a camera. Using a time-periodic Kalman filter, we show how one can find an optimal schedule of the sensor communication. One can significantly improve estimation quality by only using the expensive sensor rarely. We also demonstrate how simple sensor switching rules based on the Riccati equation drives the filter into a stable time-periodic Kalman filter. ￜ 2008 IEEE.

QC 20110224

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(11037774), Shitij Tushar Avlani. "Design of Intelligent Internet of Things and Internet of Bodies Sensor Nodes." Thesis, 2021.

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Energy-efficient communication has remained the primary bottleneck in achieving fully energy-autonomous IoT nodes. Several scenarios including In-Sensor-Analytics (ISA), Collaborative Intelligence (CI) and Context-Aware-Switching (CAS) of the cluster-head during CI have been explored to trade-off the energies required for communication and computation in a wireless sensor network deployed in a mesh for multi-sensor measurement. A real-time co-optimization algorithm was developed for minimizing the energy consumption in the network for maximizing the overall battery lifetime of individual nodes.

The difficulty of achieving the design goals of lifetime, information accuracy, transmission distance, and cost, using traditional battery powered devices has driven significant research in energy-harvested wireless sensor nodes. This challenge is further amplified by the inherent power intensive nature of long-range communication when sensor networks are required to span vast areas such as agricultural fields and remote terrain. Solar power is a common energy source is wireless sensor nodes, however, it is not reliable due to fluctuations in power stemming from the changing seasons and weather conditions. This paper tackles these issues by presenting a perpetually-powered, energy-harvesting sensor node which utilizes a minimally sized solar cell and is capable of long range communication by dynamically co-optimizing energy consumption and information transfer, termed as Energy-Information Dynamic Co-Optimization (EICO). This energy-information intelligence is achieved by adaptive duty cycling of information transfer based on the total amount of energy available from the harvester and charge storage element to optimize the energy consumption of the sensor node, while employing event driven communication to minimize loss of information. We show results of continuous monitoring across 1Km without replacing the battery and maintaining an information accuracy of at least 95%.

Decades of continuous scaling in semiconductor technology has resulted in a drastic reduction in the cost and size of unit computing. This has enabled the design and development of small form factor wearable devices which communicate with each other to form a network around the body, commonly known as the Wireless Body Area Network (WBAN). These devices have found significant application for medical purposes such as reading surface bio-potential signals for monitoring, diagnosis, and therapy. One such device for the management of oropharyngeal swallowing disorders is described in this thesis. Radio wave transmission over air is the commonly used method of communication among these devices, but in recent years Human Body Communication has shown great promise to replace wireless communication for information exchange in a WBAN. However, there are very few studies in literature, that systematically study the channel loss of capacitive HBC for wearable devices over a wide frequency range with different terminations at the receiver, partly due to the need for miniaturized wearable devices for an accurate study. This thesis also measures and explores the channel loss of capacitive HBC from 100KHz to 1GHz for both high-impedance and 50Ohm terminations using wearable, battery powered devices; which is mandatory for accurate measurement of the HBC channel-loss, due to ground coupling effects. The measured results provide a consistent wearable, wide-frequency HBC channel loss data and could serve as a backbone for the emerging field of HBC by aiding in the selection of an appropriate operation frequency and termination.

Lastly, the power and security benefits of human body communication is demonstrated by extending it to animals (animal body communication). A sub-inch^3, custom-designed sensor node is built using off the shelf components which is capable of sensing and transmitting biopotential signals, through the body of the rat at significantly lower powers compared to traditional wireless transmissions. In-vivo experimental analysis proves that ABC successfully transmits acquired electrocardiogram (EKG) signals through the body with correlation accuracy >99% when compared to traditional wireless communication modalities, with a 50x reduction in power consumption.
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(9805406), Md Rahat Hossain. "A novel hybrid method for solar power prediction." Thesis, 2013. https://figshare.com/articles/thesis/A_novel_hybrid_method_for_solar_power_prediction/13432601.

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Renewable energy sources, particularly solar energy, play a vital role for generating environment-friendly electricity. Foremost advantages of solar energy sources are: nonpolluting, free in terms of availability and renewable. The renewable green-energy sources are becoming more cost-effective and sustainable substitutes to conventional fossil fuels. Nonetheless, power generation from Photovoltaic (PV) systems is unpredictable due to its reliance on meteorological conditions. The effective use of this fluctuating solar energy source obliges reliable and robust forecast information for management and operation of a contemporary power grid. Due to the remarkable proliferation of solar power generation, the prediction of solar power yields becomes more and more imperative. Large-scale penetration of solar power in the electricity grid provides numerous challenges to the grid operator, mainly due to the intermittency of the sun. Since the power produced by a PV depends decisively on the unpredictability of the sun, unexpected variations of a PV output may increase operating costs for the electricity system as well as set potential threats to the reliability of electricity supply. Nevertheless, the prediction accuracy level of the existing prediction methods for solar power is not up to the mark that is very much required to deal with the forthcoming sophisticated and advanced power grid like Smart Grid. Therefore, accurate solar power prediction methods become very substantial. The main goal of this thesis is to produce a novel hybrid prediction method for more accurate, reliable and robust solar power prediction using modern Computational Intelligence (CI). The hybrid prediction method which is mainly composed of multiple regressive machine learning techniques will be as accurate and reliable as possible, to accommodate the needs of any future systems that depend upon it for generator or load scheduling, or grid stability control applications. In this thesis, research on the experimental analysis and development of hybrid machine learning for solar power prediction has been presented. The thesis makes the following major contributions: 1) It investigates heterogeneous machine learning techniques for hybrid prediction methods for solar power 2) It applies feature selection methods to individually improve the prediction accuracy of previous machine learning techniques 3) It investigates possible parameter optimisation of computational intelligence techniques to make sure that individual predictions are as accurate as possible 4) It proposes hybrid prediction by non-linearly integrating the discrete prediction results from various machine-learning techniques. Performance characteristics of the hybrid machine learning over individuals was carried out through experimental analysis and the results are justified by various statistical tests and error validation metrics which confirmed the maximum achievable accuracy of the developed hybrid method for solar power prediction. It is expected that the outcome of the research will provide noteworthy contribution to the relevant research field as well as to Australian power industries in the near future.
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(9798128), David Gay. "Investigation of the applicability of power line communications for smart SWER." Thesis, 2013. https://figshare.com/articles/thesis/Investigation_of_the_applicability_of_power_line_communications_for_smart_SWER/13465160.

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"As demand for power increases in rural areas serviced by Single Wire Earth Return (SWER) networks, distribution issues are becoming increasingly evident. Voltage regulation and system capacity concerns are driving utilities toward using smarter compensation devices for network control in an attempt to provide longevity for aging SWER infrastructure. To date, despite increasing complexity in power delivery over SWER, no effective network monitoring solutions have been proposed.This paper examines the case for network monitoring and centralised management of smart compensation devices via PowerLine Communications (PLC). After establishing advantages in network monitoring, regulation and maintenance for SWER networks, narrowband and broadband PLC issues are reviewed. The channel capacity of typical SWER conductors is then evaluated and compared to data throughput requirements derived from existing infrastructure to validate the applicability of developing PLC over SWER infrastructureIn building a more efficient, smarter network, a degree of device autonomy will be eroded to facilitate a more holistically managed system. This can only be accomplished through communication between smart devices themselves and reporting to utilities, which in turn will require a communications medium. This thesis looks at the possibility of using the power distribution system as the communication medium."--Abstract.
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(8817131), Samuel Denton. "OPTICAL COMMUNICATIONS TESTBED FOR THE EXPLOITATION OF LUMINESCENCE EMISSIONS OF SOLAR CELLS FOR OPTICAL FREQUENCY IDENTIFICATION (OFID)." Thesis, 2020.

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The purpose of this thesis was to investigate the possibility of Optical Frequency Identification (OFID) technology being used as a communication pathway for devices in LiFi systems that serve to open alternative transmission paths for Internet-of-Things infrastructure. LiFi or light-fidelity, plays off the concept of wireless-fidelity, commonly known as WiFi, and follows the trend of moving to higher frequencies within the electromagnetic spectrum. LiFi lies within the visual light and infrared wavelength range, which can be referred to as the nanometer wave range. The developed optical communication testbed is a proof of concept showing that OFID technology, enabled by Gallium Arsenide solar cell emission, can communicate with Visual Light Communication (VLC) systems. The scope of the work entails the development of a testbed for a custom optical communications testbed for OFID linked to VLC communication by sending transmissions via powerline modulation. An optical receiver circuit was developed and tested, and integration and testing for powerline communication and LED luminaire were successful. Manchester encoded data was sent at 4800 bit rate optically from an infrared light source, received by the developed receivers and was decoded. Information was successfully transmitted over powerline from computer terminal to LED luminaire output at 2400, 3600, 4800, 7200, and 9600 bit rate. Integration of these communication links did not occur due to Purdue University closure of campus related activities from COVID-19.
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Mustapha, Baharuddin. "Automated Obstacle Detection System for Safe Locomotion." Thesis, 2016. https://vuir.vu.edu.au/34339/.

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The dramatic growth in aging population has opened up the opportunity for engineers and scientists to develop sophisticated devices, especially in supporting the elderly for safety navigation. Mobility assistive device is a supportive tool which can assist the elderly during walking either indoor or outdoor environment. The number of fall-related diseases among the elderly could be reduced using sensor based mobility assistive devices. These machines will grow further as new supportive tools of electronic devices for daily locomotion, and become more feasible and pervasive. Sensor embedded mobility assistive devices with wireless technology compatibilities are the solution to accommodate the elderly’s safety in navigation. The newly designed system must be highly reliable, efficient, hands-free, cheap and most importantly, practical for use in real life activities. These technologies are said to bring a number of significant improvements into the next generation of mobility assistive devices, including miniaturization, low power consumption, full integration of system capability and low cost of production. Miniaturization is a great advantage as it means that the devices or systems should require only small volumes of space and suitability to embed insole of shoes. With low power consumption, only small batteries might be needed as power supply or even energy scavenging can be sufficient to power them, if not a combination of these. As full system integration on a single chip is also possible, signal processing and computation can be performed on the same chip with greatly improved overall system performance. Most interestingly, the low per-unit cost is what business and consumers are looking for in every product and this has been a significant trend.
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(5930402), Justin C. Wirth. "Engineering Sensitivity: An Optical Optimization of Ring Resonator Arrays for Label-Free Whole Bacterial Sensing." Thesis, 2019.

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The quick, reliable, and sensitive detection of bacterial contamination is desired in areas such as counter bioterrorism, medicine, and food/water safety as pathogens such as E. coli can cause harmful effects with the presence of just a few cells. However, standard high sensitivity techniques require laboratories and trained technicians, requiring significant time and expense. More desirable would be a sensitive point-of-care device that could detect an array of pathogens without sample pre-treatment, or a continuous monitoring device operating without the need for frequent operator intervention.

Optical microring resonators in silicon photonic platforms are particularly promising as scalable, multiplexed refractive index sensors for an integrated biosensing array. However, no systematic effort has been made to optimize the sensitivity of microrings for the detection of relatively large discrete analytes such as bacteria, which differs from the commonly considered cases of fluid or molecular sensitivity. This work demonstrates the feasibility of using high finesse microrings to detect whole bacterial cells with single cell resolution over a full range of potential analyte-to-sensor binding scenarios. Sensitivity parameters describing the case of discrete analyte detection are derived and used to guide computational optimization of microrings and their constituent waveguides, after considering a range of parameters such as waveguide dimension, material, modal polarization, and ring radius. The sensitivity of the optimized 2.5 µm radius silicon TM O-band ring is experimentally demonstrated with photoresist cellular simulants. A multiplexed optimized ring array is then shown to detect E. Coli cells in an experimental proof of concept.

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Books on the topic "Sensors and systems (excl. communications)"

1

Fundamentals of programmable logic controllers, sensors, and communications. 3rd ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2004.

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Fundamentals of programmable logic controllers, sensors, and communications. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 1999.

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Fundamentals of programmable logic controllers, sensors, and communications. Englewood Cliffs, N.J: Regents/Prentice/Hall, 1993.

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Karmakar, Nemai Chandra. Chipless RFID sensors. Hoboken: Wiley, 2016.

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Carapezza, Edward M. Sensors, and command, control, communications, and intelligence (C3I) technologies for homeland security and homeland defense VII: 17-20 March 2008, Orlando, Florida, USA. Edited by Society of Photo-optical Instrumentation Engineers. Bellingham, Wash: SPIE, 2008.

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IEEE Workshop on Micro Electro Mechanical Systems (11th 1998 Heidelberg, Germany). IEEE, the Eleventh Annual International Workshop on Micro Electro Mechanical Systems: Proceedings : an investigation of micro structures, sensors, actuators, machines and systems, January 25-29, 1998, Heidelberg, Germany. [New York, N.Y.]: Institute of Electrical and Electronics Engineers, 1998.

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Carapezza, Edward M. Sensors, and command, control, communications, and intelligence (C3I) technologies for homeland security and homeland defense VIII: 15-17 April 2009, Orlando, Florida, United States. Edited by SPIE (Society). Bellingham, Wash: SPIE, 2009.

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Karmakar, Nemai Chandra, Emran Amin, and Jhantu Kumar Saha. Chipless RFID Sensors. Wiley & Sons, Incorporated, John, 2016.

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Karmakar, Nemai Chandra, Emran Amin, and Jhantu Kumar Saha. Chipless RFID Sensors. Wiley & Sons, Limited, John, 2016.

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Karmakar, Nemai Chandra, Emran Amin, and Jhantu Kumar Saha. Chipless RFID Sensors. Wiley & Sons, Incorporated, John, 2015.

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Book chapters on the topic "Sensors and systems (excl. communications)"

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Cecílio, José, and Pedro Furtado. "Planning for Distributed Control Systems with Wired and Wireless Sensors." In Computer Communications and Networks, 67–82. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-02889-7_7.

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Misra, Mohit, Prashant Mani, and Shailesh Tiwari. "Early Detection of Road Abnormalities to Ensure Road Safety Using Mobile Sensors." In Ambient Communications and Computer Systems, 69–78. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7952-0_7.

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Cecílio, José, and Pedro Furtado. "Latency Modeling for Distributed Control Systems with Wired and Wireless Sensors." In Computer Communications and Networks, 51–66. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-02889-7_6.

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Ferro, Roberto, Gabriel Alzate, and Helmer Muñoz. "Early Warning Systems, Recurrent Risks and Location of Sensors in Bogotá." In Communications in Computer and Information Science, 615–24. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66963-2_54.

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Benegui, Cezara, and Radu Tudor Ionescu. "Adversarial Attacks on Deep Learning Systems for User Identification Based on Motion Sensors." In Communications in Computer and Information Science, 752–61. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-63823-8_85.

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Sallem, Soumaya, Ousama Osman, Laurent Sommervogel, Marc Olivas, Arnaud Peltier, Françoise Paladian, and Pierre Bonnet. "Wired Network Distributed Diagnosis and Sensors Communications by Multi-carrier Time Domain Reflectometry." In Advances in Intelligent Systems and Computing, 1038–46. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01057-7_77.

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Li, Xinghua, Jingmei Zhang, and Peifen Chen. "A Novel Global Calibration Method for Multi-vision Sensors." In The Proceedings of the Second International Conference on Communications, Signal Processing, and Systems, 91–98. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00536-2_11.

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Wang, Shaochu, Kaihua Liu, Yu Liu, and Xiaokang Sun. "Analysis for Low Cost Inertial Sensors Based Pedestrian Dead Reckoning." In The Proceedings of the Second International Conference on Communications, Signal Processing, and Systems, 1029–37. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00536-2_119.

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Huang, Min, Huiguo Lu, Baoqiang Wang, and Yong Lu. "Research on Testing the Ultrasonic Wind Sensors in Circuit Wind Tunnel." In Proceedings of the 2015 International Conference on Communications, Signal Processing, and Systems, 859–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49831-6_89.

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Noje, Dan, Radu Catalin Tarca, Nicolae Pop, Alin Octavian Moldovan, and Ovidiu Gheorghe Moldovan. "Automatic System Based on Riesz MV-algebras, for Predictive Maintenance of Bearings of Industrial Equipment Using Temperature Sensors." In Intelligent Methods Systems and Applications in Computing, Communications and Control, 3–19. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16684-6_1.

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Conference papers on the topic "Sensors and systems (excl. communications)"

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Yang, Daquan. "Lab for Micro/Nanoscale Sensors and Systems." In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/acpc.2020.s3f.2.

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Camps, Adriano. "NanoSats: current trends in scientific and communications missions." In Sensors, Systems, and Next-Generation Satellites XXV, edited by Steven P. Neeck, Toshiyoshi Kimura, Sachidananda R. Babu, and Arnaud Hélière. SPIE, 2021. http://dx.doi.org/10.1117/12.2614782.

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Xiaoning, Xin, Yu Haibin, Cui Shuping, and Ma Haoning. "A Flexible Protocol Processing Accelerator for Networked Sensors." In 2006 International Conference on Communications, Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/icccas.2006.285193.

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Farrell, Thomas C. "Sources of background light on space based laser communications links." In Sensors and Systems for Space Applications XI, edited by Khanh D. Pham and Genshe Chen. SPIE, 2018. http://dx.doi.org/10.1117/12.2295745.

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Li, Yi, Xin Tian, Qi Zhao, Khanh D. Pham, James C. Lyke, Erik Blasch, and Genshe Chen. "Throughput modeling and analysis for TCP over TCP satellite communications." In Sensors and Systems for Space Applications XIII, edited by Khanh D. Pham and Genshe Chen. SPIE, 2020. http://dx.doi.org/10.1117/12.2560543.

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Wei, Sixiao, Xin Tian, Zhijiang Chen, Yi Li, Khanh Pham, James Lyke, Ken Foo, Nichole Sullivan, and Genshe Chen. "Toolchain based hybrid implementation for GPS satellite communications with optical crosslinks." In Sensors and Systems for Space Applications XII, edited by Khanh D. Pham and Genshe Chen. SPIE, 2019. http://dx.doi.org/10.1117/12.2520484.

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Powers, Michael, Shane Stuckey, Dwayne M. Banks, Festus Bett, Hongzhi Guo, and Kyo D. Song. "RF and microwave radiation safety for 5G communications." In Nano-, Bio-, Info-Tech Sensors, and Wearable Systems, edited by Jaehwan Kim, Kyo D. Song, Ilkwon Oh, and Maurizio Porfiri. SPIE, 2022. http://dx.doi.org/10.1117/12.2615048.

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Zhang, Chao, and Yaxin Zhang. "Short range magnetic communications for contactless sensors on aircraft." In 2016 IEEE/AIAA 35th Digital Avionics Systems Conference (DASC). IEEE, 2016. http://dx.doi.org/10.1109/dasc.2016.7777994.

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Foster, Amy C., Michael Kossey, Neil MacFarlane, Charbel Rizk, Tomek Kott, Robert Osiander, and Nelofar Mosavi. "Chip-scale optical phased arrays for inter-spacecraft communications." In Micro- and Nanotechnology Sensors, Systems, and Applications XI, edited by M. Saif Islam and Thomas George. SPIE, 2019. http://dx.doi.org/10.1117/12.2520305.

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Farrell, Thomas. "The effect of atmospheric optical turbulence on laser communications systems: Part 1, theory." In Sensors and Systems for Space Applications XII, edited by Khanh D. Pham and Genshe Chen. SPIE, 2019. http://dx.doi.org/10.1117/12.2520055.

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Reports on the topic "Sensors and systems (excl. communications)"

1

El-Rayes, Khaled, and Ernest-John Ignacio. Evaluating the Benefits of Implementing Mobile Road Weather Information Sensors. Illinois Center for Transportation, February 2022. http://dx.doi.org/10.36501/0197-9191/22-004.

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State departments of transportation (DOTs) have traditionally utilized fixed road weather information sensors (RWIS) to improve road safety during inclement weather; enhance the management of labor, equipment, and materials for winter road maintenance; and reduce adverse environmental impacts from road maintenance activities. Despite the benefits of these fixed RWIS sites, their coverage and effectiveness are limited because of their stationary locations. To overcome these limitations, recent advances in mobile road weather information sensing technology and cellular communications have enabled the development of mobile RWIS that can be deployed on vehicles to expand the limited coverage of fixed RWIS networks. Combining mobile RWIS, fixed RWIS networks, automatic vehicle location, and maintenance decision support systems (MDSS) provide DOTs with accurate georeferenced road and weather information that can be used by DOTs to optimize winter road maintenance operations and deicer applications. This report presents the findings of a research project funded by the Illinois Department of Transportation to investigate the effectiveness of mobile RWIS and MDSS in improving winter maintenance operations. This project had the following three objectives. First, conduct a literature review to gather and analyze current practices and latest research studies on mobile RWIS and their use for collecting real-time winter roadway conditions to optimize winter maintenance operations. Second, perform interviews with other state DOTs to gather and analyze their experiences and best management practices for the deployment and use of mobile RWIS and MDSS. Third, develop recommendations for a pilot study to evaluate the deployment and performance of mobile RWIS and MDSS in order to determine their effectiveness, implementation requirements, software/technology needs, operational challenges, and life-cycle costs.
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