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A framework for hardware design and validation of face detection systems is discussed. The design begins at a high-level of abstraction by using a software library as the golden reference model. The golden reference model and the baseline model (model under validation) are converted to a transaction level (TLM) description or a register transfer level (RTL) description. The degree of similarity of...
Camera-enabled sensors deployed for visual monitoring will cover a region of the target field, providing information for many innovative applications based on wireless sensing. Actually, some areas of the monitored field may have more relevance than others, according to the characteristics of the applications, which may indicate that such areas need better coverage to avoid blind spots and achieve...
This paper presents the modeling, simulation of a double-stage evaporation process to obtain Bioethanol from sugarcane juice; the model was validated with data from a plant located in Peru. So is the calculation of a Nonlinear Control and optimization following the Extended Prediction Self-Adaptive Control approach, because it has less computational load. The results achieved the control of juice...
The sustained increase of energy demand imposes the need of a gradual and orderly adaptation of power systems, where the generation capacity expansion planning is the fundamental framework involved in making investment decisions. In this sense, the main challenge for planning methodologies is to apply adequate models in order to represent the electrical network in a more reliable way and involving...
The estimation of states it is a problem that although it has not been considered of great relevance in the distribution networks along the history, has taken importance because of the need to know the systems operational states by the great advances of the networks in terms of new technologies and a constant growth in the long term. This paper presents a work focused on the selection of the number...
During last period, the energy harvested from solar power cells have arisen exponentially, being every day more important, because it is a clean energy presented in almost all over the globe. However, in order to track the maximum power point to maximize the drained energy, different algorithms are implemented to impose certain current and voltage at the solar module output. The maximum power point...
This paper studies the dynamic performance of BLDC motor with MatLab/Simulink, and the results of torques and speeds are verified with Mathematica software. MatLab/Simulink provides suitable environment for control application and power electronic design, whereas Mathematica is better for symbolic part and therefore it could be preferred for design and control applications for electrical motors. By...
The interference attack or better known as jamming attacks are very easy to implement affecting the service of any wireless communication system given the vulnerability of data sent to the user. This attack by denying the normal operation of the service detracts from the purpose of these systems. In general, a jamming attack is difficult to detect given the little experimental data provided by the...
The use of sensing technologies in industrial environments has opened many possibilities for monitoring and control applications, driving much research efforts in the last years. Among the challenging issues related to industrial wireless sensor networks, efficient nodes deployment is a major concern since it can directly impact the way sensors operate, which has demanded proper solutions. When sensing...
In this study, we examine simulation models of shunt, separately excited and permanent magnet direct current motor dynamic behavior during starting, steady state and stopping time (electrical braking) for dynamic simulation of electromechanical energy conversion using MATHEMATICA 10 environment. It is surly important to control the speed; keep it constant and reduce it safely with desired time while...
With the huge develop of low consumption wireless devices both for industry and human wellness and comfort, such as Wireless Body Area Network for health active care and Wireless Sensors Networks for industry environments, new challenges are proposed for the both industry and scientific community. Security is one of this matters. Given the specific characteristics of the low consumptions modern devices,...
The liberalization of power markets has led to changes in the electricity pricing mechanism. Under this new paradigm, the introduction of competition in the generation segment entails a price determination according to an economic dispatch of generating units. However, transmission constraints usually imply a subsequent alteration of the supply costs, above those purely due to the power production...
This article introduces a dynamic model for dissolved oxygen content in an aquaculture system of whiteleg shrimp. Additionally, a non-linear controller has been designed for hourly control. This time frequency is necessary because of the time required to reach the predicted levels of oxygen. The dynamic model has incorporated a shrimp growth model calibrated with real data. The results show how the...
This paper contains a new alternative to control a pH neutralization process using a PID control with predictive characteristics. The structure uses a Wiener model of a pH simulator that corresponds to a bench-scale plant at University of California, Santa Barbara (UCSB). The study concluded in a new alternative, named WPIDp (Wiener PID predictive) with good performance. We compare the new algorithm...
Intrusion Detection Systems (IDSs) are signature-based software tools that provide mechanisms for detection and analysis of network intrusions. Using an experimental scenario and real traffic collected at a higher education institution in Brazil, we evaluate the performance of Snort and Suricata IDSs for detection of current Distributed Denial-of-Services attack (Slowloris). Our study has found the...
This paper proposes to investigate the energy efficiency and the economic impact provided by lighting retrofit in popular housing, verifying the qualitative analysis of light emitting diode lamps replacing compact fluorescents by the evaluation of electrical and lighting parameters. The study evaluated proposal by the Housing Agency of the State of Goiás, Brazil, which will replace conventional light...
A human-like mobile robotic system for humus production, from earthworms (Eisenia foetida), in urban areas, was developed, built up and tested. The system could be separated in two modules for a better understanding, Software and Hardware. The Software implements a fuzzy control algorithm aimed to keep the best environment conditions inside the humus production zone, an in this way maximize the humus...
Knowing the wind speed is an important factor that includes several scientific areas. For the types of existing anemometers, the ultrasonic model is what can be used in most applications. As part of the necessary calculus for wind speed acquisition, it is needed to find the correct ultrasonic echo emitted that has been corrupted by the environmental conditions imposed on it, and is the bigger challenge...
In this brief paper, experimental results of the generation of acoustic waves in a tilted silo during the discharge process of a granular material are presented. The silo used in the experiments possesses cylindrical geometry. Acoustic waves, produced by dynamic pulsations due to the stick-slip motion of the granular material inside the tilted silo, are captured and analyzed using signal processing...
This paper explores the feasibility of using a low-cost embedded ARM-based system for real-time vehicle recognition and identification through image processing. The main features of the system include: vehicle detection, speed measurement, and vehicle identification by license plate number recognition, the information obtained is then send to a database on a server in a local network. An ODROID-U3...
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