Search results for "Models"

showing 10 items of 8211 documents

A blockchain platform for Demand Response in Mediterranean islands: a smart contract for remuneration

2022

The Blorin project started at the end of 2019 to support the implementation of a blockchain platform to support the energy services provision from end users by means of Demand Response and Vehicle to Grid programs. The experimental part of the project is being carried out on two Mediterranean islands and inside the University campus in Palermo. Customized smart contracts have been designed to support the active participation of end users to regulation services for the two weak electrical grids of the islands in the view of a deep penetration of renewable energy in the two energy systems. In particular, the smart contract for remuneration accounts for the very special energy situation of isl…

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaEnergy blockchainSmart ContractSettore ING-INF/03 - TelecomunicazioniDemand-ResponseBusiness modelsIECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society
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Towards a business model for second-life batteries: Barriers, opportunities, uncertainties, and technologies

2023

Electric vehicles (EVs) and the recent pandemic outbreak give cities a new trend to primarily private and shared mobility with low noise and less air pollution. Crucial factors for the widespread of EVs are the electrical charging infrastructure, driving range, and the reduction of the cost of battery packets. For this reason, there is a massive effort from manufacturers, governments, and the scientific community to reduce battery costs and boost sustainable electrical production and distribution. Battery reuse is an alternative to reduce batteries’ costs and environmental impacts. Second-life batteries can be used in a wide variety of secondary applications. Second-life batteries can be co…

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniFuel TechnologyElectrochemistryEnergy Engineering and Power TechnologyBusiness models Batteries Sustainability Electric vehicles Challenges Opportunities Lithium-ion batteries ReuseEnergy (miscellaneous)Journal of Energy Chemistry
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A Remuneration Model of Energy Community Members in Italy

2022

The Directive (EU) 2018/2001 (RED II) requires Member States to authorize the constitution of consumers as self-consumers of renewable electricity by ensuring them non-discriminatory and disproportionate treatment. Member States must establish a favorable framework for promoting and facilitating the development of self-consumption, including in collective form (art. 21). According to the Directive, the granting of rights to renewable energy self-consumers who act collectively allows to increase the energy efficiency of households and helps to combat energy poverty by reducing consumption and supply tariffs. In Italy, the decree n. 162/2019 and then amended with Decree 199/2021 has partially…

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniRemunerationEnergy CommunityBusiness models
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Rateless Codes Performance Analysis in Correlated Channel Model for GEO Free Space Optics Downlinks

2012

Settore ING-INF/03 - TelecomunicazioniFree Space Optics (FSO) technologies for satellite communications offer several advantages: wide bandwidth high rate capability immunity to electromagnetic interference and small equipment size. Thus they are suitable for inter-satellite links deep space communications and also for high data rate ground-to-satellite/satellite-to-ground communications. Nevertheless FSO links suffer impairments that cause power signal degradation at the receiver. Scattering and absorption cause power signal attenuations predictable by suitable deterministic models. Optical turbulence causes random irradiance fluctuations which can generate signal fading events and can thereby only be predicted by statistical models. Attenuation and fading events can corrupt FSO links and so it would be recommended to add mitigation error codes on the communication link. FSO channel can be described as an erasure channel: fading events can cause erasure errors. We have identified in rateless codes (RCs) a suitable solution to be employed in FSO links. RCs do not need feedback and they add a redundant coding on the source data that allows the receiver to recover the whole payload despite erasure errors. We implemented two different of rateless codes: Luby Transform (LT) and Raptor. We analyzed their performances on a simulated turbulent GEO FSO downlink (1 Gbps - OOK modulation) at a 106 μm wavelength and for different values of zenith angles. Assuming a plane-wave propagation and employing Hufnagel-Valley we modeled the downlink using: 1) a temporal correlated channel model based on Gamma-Gamma probability distribution and 2) an irradiance covariance function that we converted on a time function using Taylor frozen eddies hypothesis. Our new channel model is able to simulate irradiance fluctuations at different turbulence conditions as it will be shown in the full paper. We will also report performance results of LT and Raptor codes at overhead range varying between 0 and 50% and for different values of source packets.Settore ING-INF/01 - Elettronica
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Robust Discrete-Time Lateral Control of Racecars by Unknown Input Observers

2023

This brief addresses the robust lateral control problem for self-driving racecars. It proposes a discrete-time estimation and control solution consisting of a delayed unknown input-state observer (UIO) and a robust tracking controller. Based on a nominal vehicle model, describing its motion with respect to a generic desired trajectory and requiring no information about the surrounding environment, the observer reconstructs the total force disturbance signal, resulting from imperfect knowledge of the time-varying tire-road interface characteristics, presence of other vehicles nearby, wind gusts, and other model uncertainty. Then, the controller actively compensates the estimated force and as…

Settore ING-INF/04 - AutomaticaControl and Systems EngineeringAutonomous vehicles Estimation extended state observer (ESO) Force input-state estimation Mathematical models Observers racecars robust vehicle control self-driving Trajectory Uncertainty Vehicle dynamicsElectrical and Electronic EngineeringIEEE Transactions on Control Systems Technology
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Reduced Complexity Models in the Identifi cation of Dynamical Networks: links with sparsi cation problems.

2009

In many applicative scenarios it is important to derive information about the topology and the internal connections of more dynamical systems interacting together. Examples can be found in fields as diverse as Economics, Neuroscience and Biochemistry. The paper deals with the problem of deriving a descriptive model of a network, collecting the node outputs as time series with no use of a priori insight on the topology. We cast the problem as the optimization of a cost function operating a trade-off between accuracy and complexity in the final model. We address the problem of reducing the complexity by fixing a certain degree of sparsity, and trying to find the solution that ``better'' satis…

Settore ING-INF/04 - AutomaticaIdentification Sparsification Reduced Models Networks
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3D DATA INTEGRATION FOR WEB BASED OPEN SOURCE WebGL INTERACTIVE VISUALISATION

2022

Abstract. Recent advances in open-source geospatial technologies in WebGIS allowed the visualization of a 3D complex environment on the web, exploiting realistic Globe reproduction of the real territorial asset. At the same time, in the field of gaming technologies, the new possibilities offered by open-source WebGL JavaScript libraries allowed the creation of Virtual Reality navigation models on the web. The integration between 3D GIS globe navigation models and VR environment navigation is a solution that offers a further level of detail in web navigation, exploiting the capabilities of web browsers in the best way. This research further contributes to this field, showing a workflow to in…

Settore ING-INF/04 - AutomaticaWebGIS WebGL 3D models Virtual Reality JavaScript Open source Digital TwinsSettore ICAR/06 - Topografia E Cartografia
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A genome based vision of multi-agent systems

2011

A set of software agents can be programmed to provide a large but finite set of services, often defined during design phase. After an evolution of the external environment, the pre-defined services could be unable to satisfy the requested quality. In this work it is proposed an agent framework capable to adapt the agents in order to improve the quality of services provided by an agent society in correspondence with a modification of the external environment. These agents are based on a biologically inspired structure (genome), that de- fines all their behaviors and knowledges. The effectiveness of the approach is proved by a set of successful experimental results

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniAgent Models and ArchitecturesAdaptationAgent models and architectures Multi-agent systems adaptationMulti-Agent Systems
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Extracting Structured Knowledge From Sensor Data for Hybrid Simulation

2014

Obtaining continuous and detailed monitoring of indoor environments has today become viable, also thanks to the widespread availability of effective and flexible sensing technology; this paves the way for the design of practical Ambient Intelligence systems, and for their actual deployment in real-life contexts, which require advanced functionalities, such as for instance the automatic discovery of the activities carried on by users. Novel issues arise in this context; on one hand, it is important to reliably model the phenomena under observation even though, to this end, it is often necessary to craft a carefully designed prototype in order to test and fine-tune the theoretical models.

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniAmbient intelligenceComputer scienceTheoretical modelsinternet of things wireless sensor networks grammar inductionContext (language use)computer.file_formatData scienceSoftware deploymentHuman–computer interactionSensor nodeRDFWireless sensor networkcomputer
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An architecture for observational learning and decision making based on internal models

2013

We present a cognitive architecture whose main constituents are allowed to grow through a situated experience in the world. Such an architectural growth is bootstrapped from a minimal initial knowledge and the architecture itself is built around the biologically-inspired notion of internal models. The key idea, supported by findings in cognitive neuroscience, is that the same internal models used in overt goal-directed action execution can be covertly re-enacted in simulation to provide a unifying explanation to a number of apparently unrelated individual and social phenomena, such as state estimation, action and intention understanding, imitation learning and mindreading. Thus, rather than…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniCognitive scienceComputer scienceCognitive NeuroscienceAgency (philosophy)Experimental and Cognitive PsychologyCognitionCognitive architectureCognitive neuroscienceAction (philosophy)Artificial IntelligenceAnticipation (artificial intelligence)Situatedanticipationcognitive architectureimitation learninginternal modelssimulationObservational learningBiologically Inspired Cognitive Architectures
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