Investigación: Envíos recientes
Mostrando ítems 141-160 de 504
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Lithium-ion battery pack arrays for lifespan enhancement
(2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), 12/21/2017)Depending on the application, power and energy requirements may differ significantly and, most likely, a single lithium-ion cell will not suffice. Battery packs offer cell interconnections that allow to obtain several ... -
State-of-charge estimation to improve energy conservation and extend battery life of wireless sensor network nodes
(2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN)2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN), 07/27/2017)Wireless sensor networks are pervasive systems that continuously demonstrate increase in growth by branching into diverse applications. The state of charge is an indicator that conveys the amount of energy available in the ... -
Frame retransmission using a modified VST-TDMA access protocol in Picocell/WPAN
(2017 IEEE 9th Latin-American Conference on Communications (LATINCOM)2017 IEEE 9th Latin-American Conference on Communications (LATINCOM), 12/28/2017)The VST-TDMA access protocol has shown to have many advantages over existing protocols in centralized (star) wireless network architectures. As most data-link layer protocols, it does not have a recovery feature as data ... -
SoC control for improved battery life and throughput performance under VST-TDMA
(IETIET, 02/09/2017)Energy independence is a wireless device quality that demands the utmost exigency. Energy harvesting devices (EHD) alleviate the energy constraints demanded by these nodes and with the use of protocols, such as variable ... -
Lithium-Ion Battery End-of-Discharge Time Estimation and Prognosis based on Bayesian Algorithms and Outer Feedback Correction Loops: A Comparative Analysis
(A Comparative Analysis. In the Annual Conference of the Prognostics and Health Management Society 2015A Comparative Analysis. In the Annual Conference of the Prognostics and Health Management Society 2015, 2015-08-24)Battery energy systems are currently one of the most common power sources found in mobile electromechanical devices. In all these equipment, assuring the autonomy of the system requires to determine the battery state-of-charge ... -
Characterization of the degradation process of lithium-ion batteries when discharged at different current rates
(05/08/2018)The use of energy storage devices, such as lithium-ion batteries, has become popular in many different domains and applications. Hence, it is relatively easy to find literature associated with problems of battery state-of-charge ... -
State-of-charge estimation to improve decision making by MAC protocols used in WSNs
(IETIET, 02/07/2019)Energy conservation is a topic of great interest in wireless sensor networks (WSNs). Various techniques have been proposed to minimise the energy consumption. One approach is to design medium access control (MAC) protocols ... -
Improvements of Energy-Efficient Techniques in WSNs: A MAC-Protocol Approach
(IEEEIEEE, 10/12/2018)The pervasiveness of wireless sensor networks (WSNs) across different applications keeps increasing due to their versatility, although energy consumption is a huge constraint for these types of networks. Therefore, it is ... -
Particle-Filtering-Based State-of-Health Estimation and End-of-Life Prognosis for Lithium-Ion Batteries at Operation Temperature
(Annual Conference of the PHM Society 2016Annual Conference of the PHM Society 2016, 2016-08-15)We present the implementation of a particle-filtering-based framework that estimates the State-of-Health (SOH) and predicts the End-of-Life (EOL) of Lithium-Ion batteries, efficiently incorporating variations of ambient ... -
Electric Bicycle Energy Management Given an Elevation Traveling Profile
(Annual Conference of the Prognostics and Health Management Society 2017Annual Conference of the Prognostics and Health Management Society 2017, 2017-09-06)This research proposes a method for energy management in electric bicycles with Lithium-Ion batteries. This method optimizes the way energy is consumed to maximize the rider’s comfort, subject to constraints on the battery ... -
Spatio-temporal probabilistic modeling based on Gaussian mixture models and neural gas theory for prediction of criminal activity
(Annual Conference of the Prognostics and Health Management Society 2017Annual Conference of the Prognostics and Health Management Society 2017, 2017-08-18)Criminal risk models are used to assist security forces both in the identification of zones with high of criminal activity for better resource allocation and prediction of future criminal events for the prevention of new ... -
Characterizing the degradation process of Lithium-Ion Batteries using a Similarity-Based-Modeling Approach
(Fourth European Conference of the Prognostics and Health Management Society 2018Fourth European Conference of the Prognostics and Health Management Society 2018, 2018-07-01)This article proposes a Similarity-Based-Modeling (SBM) approach capable of characterizing the degradation process of a lithium-ion (Li-ion) battery when discharged under different current rates and different State-of-Charge ... -
Procedure for Selecting a Transmission Mode Dependent on the State-of-Charge and State-of-Health of a Lithium-ion Battery in Wireless Sensor Networks with Energy Harvesting Devices
(Proceedings of the Annual Conference of the PHM Society 2018Proceedings of the Annual Conference of the PHM Society 2018, 2018-09-24)Diverse methods and considerations have been proposed to manage the available energy in an efficient manner in Wireless Sensor Networks. By incorporating Energy Harvesting Devices in these type of networks it is possible ... -
Catálogo de Revistas de Panamá 2019
(Consejo de Rectores de PanamáConsejo de Rectores de Panamá, 2019-05-31)El Catálogo de Revistas de Panamá 2019, es una herramienta creada a través del Programa de Fortalecimiento de las Revistas Científicas de las Universidades de Panamá, para la difusión y promoción de las revistas; ésta es ... -
Robust lane marking detection based on multi-feature fusion
(07/06/2016)In the field of intelligent vehicle systems (IVS), color and edge of lane markings are important features for vision-based applications. This paper proposes a method to detect lane marking based on a fusion approach which ... -
Laser scanner based heading angle and distance estimation
(03/17/2013)Towards autonomous vehicle navigation the problem of guidance is a major difficulty faced by fully autonomous vehicle. This paper proposes a new method to estimate the heading angle for safe autonomous navigation purpose. ... -
Lane marking recognition based on laser scanning
(06/03/2015)Towards safe autonomous vehicle navigation the problem of lane detection and classification is highly important in the development of advanced driver assistance system (ADAS). This paper proposes a new method to detect the ... -
Crosswalk detection based on laser scanning from moving vehicle
(07/22/2015)The safety plays the most important role for both pedestrian and driver in autonomous, semi-autonomous or non-autonomous vehicle. To improve pedestrian safety, this paper presents a new type of laser feature extraction ... -
Real-time flood detection for video surveillance
(11/09/2015)This paper introduces the real-time flash flood detection method for stationary surveillance cameras. It can be applied for rural and urban areas and capable of working during day time. The background subtraction was used ... -
Real-Time Lane Region Detection Using a Combination of Geometrical and Image Features
(2016-11-17)Over the past few decades, pavement markings have played a key role in intelligent vehicle applications such as guidance, navigation, and control. However, there are still serious issues facing the problem of lane marking ...