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In this work, the algorithm is improved and a virtual device is created for automatic determination of parameters of approximating asymmetric Gaussian curves in the Labview software environment for analysis of electrocardiographic signals. As a result, the confidence of recognition when approximating waves in the presence of deviations and distortions of the shape of the wave is increased.

This report presents software optimization of the GW Instek AFG-2005 functional generator by providing functionality to it to perform control on vibration impact system. The generator is controlled via the LabVIEW software environment. The difficulties that arose during the optimization and their solution are presented.

Terahertz Time-Domain Spectroscopy (TDS) has emerged during the last two decades as a very popular technique for characterizing the low-energy excitations of several materials, gaseous, liquids and solids, as well as artificial materials as for instance epitaxial heterostructures and more. In recent years, the advances in THz technology allowed obtaining nonlinear optical effects with THz photons, showing remarkable results. In particular, THz Hyper-Raman Spectroscopy greatly expands the spectroscopic capability of the standard THz-TDS by combining intense and broadband THz pulses with a detailed analysis of the spectral content of the generated signal. It is evident that this improvement needs an adequate software support. The main parameter for coding the software which differs with respect to a standard THz-TDS software is the control of a motorized grating (monochromator), but several routines employed in the setup optimization stage rather than the actual measurement are needed as well. In this paper we present the TeraVision software, based on LabVIEW code, in order to highlight the solutions we adopted to tackle the main experimental challenges as well as to give a pleasant and user-friendly experience to expert users.

The paper presents a system for automated acquisition based on the LabVIEW software. The main concept is to conduct experiments and acquire the results in database, which would allow further analysis and discovery of concepts and processes. The stand is based on a LLC resonant converter evaluation module, but the concept could be applied to other types of power electronic converters and test benches.

In today’s solar energy situation, the general motto is “set it and forget it”. This argument derives from thorough analysis and reliability studies into photovoltaic panels. This ensures there is no need for repairs and daily monitoring. Yet several things can go wrong to cause the real output to deviate from the planned output. If defects and unanticipated problems of deterioration go undetected, they would result in reduced production of energy. The degradation of solar modules was also evident with the rise in series resistance of the module and consequent degradation of the output electrical power of the modules. This research paper explores the precedent of ageing among modules currently in use, with the objective of evaluating the durability of photovoltaic modules. This paper discusses comparative product life analysis of PV modules. Analysis of all solar PV modules is accomplished with LabVIEW software.

As the automotive market expands and evolve, more electrical engineering challenges occurs when it comes to study the implications of technology usage in daily life. While there is a constantly evolving frequency of presence of electric vehicles (EVs) that depends on alternating current (AC) power supplies, more specifically, on AC (three-phase) charging systems, there may be no doubts of an increased demand for extended possibilities for studying and diagnosis of these systems, while they are easy to understand, maintained and improved. For this need, it is proposed a virtual instrument that can be adopted in education, maintenance services and research, as LabVIEW software environment provides simulation capabilities among strong features for potentially monitoring of power quality in AC (three-phase) charging systems, being an excellent choice for the targeted appliances.

This paper presents one of the practical solutions for the real-time control of nonlinear systems using adaptive neural network-based control theory and shows two possible structures for this theory. The direct adaptive control (DAC) and indirect adaptive control (IDAC). Real-time test results reveal that the adaptive neural control structures suggested are practically feasible. The proposed structures have been implemented in Lab Viewsoftware and tested in real-time using a laboratory position control system.

The article uses LabView to develop a fault diagnosis system for wind power planetary transmissions. First, use LabView software to create a signal acquisition system. Then, the built wind turbine planetary transmission experiment platform was combined with the NI9171 data acquisition card and the upper computer. The hysteresis brake was used in the laboratory to simulate the external wind environment, and the planetary gear transmission planetary gear crack fault diagnosis and testing experiments were performed. The frequency domain signal is obtained from the initial time domain signal obtained by the experiment through the EMD and envelope demodulation method. The frequency of the corresponding planetary gear crack in the frequency domain signal is compared with the theoretical calculation of the planetary gear crack failure frequency. The results show that the frequency of the corresponding planetary gear cracks in the frequency domain spectra obtained by the experiment is basically consistent with the theoretical calculation of the frequency of cracks in planetary gears. The fault diagnosis system developed by LabView is reliable. The experiment provides a theoretical basis for fault diagnosis, optimisation design, and life prediction of wind turbine planetary transmissions.

Development methodology of color computer vision for defects detection of two commercial varieties (Chausa and Dashehari) of Indian mangoes has been proposed in this research. First, images of the fruits of both cultivars were acquired using color (RGB) camera and proper lighting regime and arrangement to avoid highlights and light reflection. Second, an algorithm was developed for pre-processing and processing to segment the external defects of mangoes using LabView software. After image processing and filtering the defected particles, the number of pixels was counted whose gray level was found to be lower than the threshold value during the particle analysis. Performance of algorithm was also evaluated in terms of accuracy, efficiency and the overall time taken by the image during processing and analysis. The overall accuracy and efficiency of proposed algorithm was found to be 88.6% and 93.3%, respectively. The average time of inspection was found to be increased as the severity of defects on mango fruit’s surface increased.

espanolSe estudio el comportamiento de las fuerzas y pares de taladrado al mecanizar madera de Pinus Radiata utilizando dos diferentes brocas, para uso en madera y para uso en metal, destacando como variables de interes el contenido de humedad de las probetas de madera y la orientacion de la fibra del Pinus Radiata. Para la toma de datos se utilizo una plataforma dinamometrica que posee sensores piezoelectricos de fuerza y par respectivamente. Para el analisis de los datos obtenidos por los sensores se utilizo el software LabVIEW, donde se modelaron las variables involucradas en los procesos de taladrado. Se estimo la presion especifica de corte de las probetas para cada contenido de humedad y orientacion de las fibras. En los resultados obtenidos se aprecia graficamente el comportamiento de las distintas fibras al mecanizarlas con las distintas brocas donde la fibra de orientacion tangencial presenta una resistencia mayor al corte, el cual se traduce en un aumento de la presion especifica de corte en comparacion a las otras orientaciones de la fibra. EnglishThe behavior of the drilling force and torque when machining Pinus Radiata wood was studied, utilizing two different drills: one for wood and another for metal, highlighting as variables of great interest, the moisture content of the wood specimens and the granular orientation of the Pinus Radiata. Regarding data collection, a dynamic platform was used that has two piezoelectric force and torque sensors, respectively. For the analysis of the data obtained by the sensors, the LabVIEW software was used, where the variables involved in the drilling processes were modeled. The specific cutting pressure of the tests for each content of the safety and orientation of the fibers was estimated using the different types of cutting tools. Among the results, the behavior of the different fibers is specifically observed when machining them with the different drills, where the tangential orientation fiber has a greater resistance to the cut, which results in an increase of the specific cutting pressure in comparison with the other orientations of the fiber.

espanolEn el presente trabajo se muestra el diseno de un sistema mecatronico, el cual emula los movimientos del cuello humano, ya que sostendra la cabeza de un robot humanoide (Arthur) desarrollado por la empresa Hanson Robotics. El diseno mecanico se basa en un robot esferico de 3 grados de libertad (3-GDL), se desarrolla el modelo dinamico a traves de las ecuaciones de movimiento de Euler-Lagrange. La etapa de control es una tarjeta de desarrollo FPGA (arreglos de compuertas programables en campo) de la familia Cyclone IV, la etapa de potencia se basa en transistores BJT, se implementa el controlador Tangente hiperbolico y una interfaz de comunicacion WiFi para configurar el robot desde una PC con ayuda del software Labview. Como resultado se muestra la integracion del sistema mecatronico, la interfaz desarrollada junto con la comunicacion FPGA-PC y control de posicion. El trabajo futuro sera la implementacion del sistema en el robot humanoide. EnglishThe present work shows the design of a mechatronic system, which emulates the movements of the human neck, as it will support the head of a humanoid robot (Arthur) developed by Hanson Robotics. The mechanical design is based on a spherical robot of 3 degrees of freedom (3-GDL), the dynamic model is developed through the Euler-Lagrange equations of motion. The control stage is a FPGA (Field Programmable Gate Arrays) development board, the power stage is based on BJT transistors, the hyperbolic tangent controller and a WiFi communication interface are implemented to configure the robot From a PC with the help of Labview software. As a result, the integration of the mechatronic system, the interface developed together with the FPGA-PC communication and position control, is shown. Future work will be the implementation of the system in the humanoid robot.

The research of the quartz-crystal microbalance (QCM) biosensors can provide an effective, real-time, point-of-care testing-detection technology for the usage in the areas of clinical and laboratory research, drug screening, and bacteria testing, among others. This article describes the designing and structure of a real-time simulation of a LabVIEW software and the QCMD board for measuring the dissipation factor and frequency. The QCM with the dissipation-measuring function was designed and programmed, and it settles the oscillator with the QCMD board while the LabVIEW controller devises the ports. The dissipation factor of the QCM was determined from the time and the switch on/off settings programmed of the oscillation signal decreasing after the oscillator was signal falling edge. The system was also applied to detect values like the blood coagulation and Gl content in the DI water. By using the QCMD technique, one can analyze the online detection of the binding between a specific antibody and bacteria by two parameters: the quartz-crystal frequency (f) and dissipation (D). Keywords: Dissipation time, Quartz-crystal microbalance, LabVIEW, Equivalent circuit, QCMD board

In this paper, the structural responses at discrete time steps are evaluated to understand the linear dynamics characteristics of a structural system using LabVIEW (Laboratory Virtual Instrument Engineering Workbench) tool. Time History Analysis (THA) which is an essential procedure to design a reliable structure when the structure is subjected to dynamic loading is taken into consideration for the study. Direct integration method was used to find out the dynamic response of the structure as it is applicable for both linear as well as nonlinear range. Block diagram that perform step-by-step integration to analyze the linear single degree of freedom (SDOF) system has been prepared in LabVIEW. The processing of data is carried out till the equilibrium is satisfied at all discrete time points within the interval of solution instead of any time t. Different ground motion time histories were considered for THA and responses of the SDOF system are evaluated. The results from LabVIEW were validated and the accuracy of the algorithms generated are discussed. It is observed that the accuracy and stability of the final solution depends on the variation of displacement, velocity and acceleration that is assumed in each step. Thus, LabVIEW workbench can therefore be recognized as an effective instrument in structural engineering owing to its fast sampling features.

The usage of vehicles is increasing drastically. The main cause for accidents is speeding, drunk and drive, diverting minds, over stress, and thanks to the electronic gadgets. This project deals with the accident detection system that happens due to the carelessness of the person who is driving the vehicle. This introduces a vehicle accident alerting system using the LabView Software which alerts the nearby Police station, Hospitals, and Family Members of the person driving the vehicle. If the person is unable to control the vehicle then the accident occurs. Once the accident occurs to the vehicle this system will send information to the registered mobile number and raise the help notification to the nearby police station officials and Hospital.

The aim of this research is to develop a phonocardiograph system to display the signal and information form of the human heart sound examination. The analytical method applied is to use the Fast Fourier Transform (FFT) to determine the frequency of responses of human heart sound signals by using Labview software. The results obtained indicate the system able to display the signal shape of the heart sound, based on ten respondents whose data are taken shows the range of heart sound frequencies is in the range of 145 to 225 Hz with a duration of 81 to 120 bpm. Keywords: Phonocardiograph, FFT, Labview

This paper aims to provide remote access to laboratories in power electronics to all levels from under graduate to research. The platform is focused on learning aspect as much as performing the experiments. Remote triggered power electronics laboratory for boost converter experiments has been developed using National Instruments(NI) data acquisition device myRIO and LabVIEW software package which has an extensive support for interfacing devices and instruments. LabVIEW software is used to access the data using myRIO which has both the processor and Field Programmable Gate Array (FPGA). Through Graphical User Interface (GUI), a user in remote location is able to vary parameter pertaining to boost converter circuit which is transmitted to laboratory PC that has NI LabVIEW installed in it. The input is further fed to circuit, and then, output is fed back to LabVIEW through NI myRIO which ultimately is returned to user’s PC using web-publishing tool and can be viewed through GUI. Remote Triggered (RT) power electronics laboratories can be effectively used to give laboratory demonstrations to large number of learners.

Light weight concrete (LWC) has been successfully used since the ancient roman times and it has gained its popularity due to its lower density and superior insulation properties. Compared to the conventional concrete, LWC can significantly reduce the dead load of structural elements, which makes it especially attractive in the construction of multi-storey buildings. The materials used for preparing the light weight concrete is pumice stones, burnt waste material ash and GGBS. The coarse aggregates are partially replaced with pumice stones in the varying fractions of 10%, 20% and 30%. The cement are partially replaced with waste burnt ash in the proportions of 5%, 10% and 15%. Additionally 5% GGBS is introduced into that mix proportions. It is observed that by the optimum presence of light weight aggregates such as 15% of burnt ash and 30% of pumice stone, density of the concrete is reduced upto 2140 kg/m3. In the same time the compressive strength is achieved around 75% to 81% of the strength of the conventional concrete. Analytical equations models are arrived from LabVIEW software and it has been well correlated the experimental test results with the deviation of \(\pm\)20%.

Cogeneration plants are one of the major power generation sources in this era of industrialization and automation. Bagasse is a by-product generated by the sugar industries on a large scale in India. The cogeneration plants use the bagasse produced by the sugar industries to generate power. Boiler system forms one of the primary components of the cogeneration plant. Designing a virtual model of the boiler system will help to model optimal systems. Simulation of the performance of the boiler system will aid in predictive maintenance as well. In this paper, a virtual model of a boiler system for a bagasse unit is designed in the LabVIEW software package. Such kind of performance analysis aids in better designs of actual models and predictive maintenance, which in turn saves time and reduces unwanted expenditures due to failures.

The synchronized data collection from vital sign monitors has been an ongoing issue. The widely used program S5Collect is a valuable tool especially for research purposes, moreover, in order to customize this program, an added plug-in with trial-specific modification can facilitate the data collection. The main aim of this study was to create a user-friendly plug-in for data capturing in operating rooms during anaesthetic care. The plug-in described was designed in co-operation with anesthesiologists in the LabVIEW software and verified on a fullbody simulator. Results showed that data captured via plug-in correlated well with the data from the simulator. This plug-in is planned to be used for data collection during robotic prostatectomy to analyze hemodynamic and ventilatory changes over the course of this operation, however, it can be easily adjusted for different clinical trials.

The control of inverted pendulum is a typical case as it exhibits a highly non-linear and unsteady phenomenon. This paper focusses on the comparative performance analysis for the swing up and stabilization of the inverted pendulum system. It uses trial and error method of LQR controller, algebraic approach for the selection of weighted matrices of the LQR controller, as well as the design and implementation of the state feedback pole-placement controller. The controllers used are for stabilization control and revolving up of Quanser based inverted pendulum system (QNET), which is rotary in the LabVIEW environment. The real-time operation has been carried out using the NI-ELVIS trainer kit, Quanser Rotary inverted pendulum system, and LabVIEW software.

The phytomonitoring subsystem software and hardware in a modern greenhouse building is provided through the use of LabVIEW software and Arduino equipment tested directly at the production site. It is shown that when growing vegetables in greenhouses it is important to take into account not only the temperature of the atmosphere in the greenhouse, but also the temperature of the plant itself. The dependence of the plant temperature on the light in the greenhouse has been analyzed, an advanced mathematical model of the greenhouse has been obtained as an object of control, suitable for forming control effects taking into account the spatial variance of the object. Purpose: to develop a subsystem of phytomonitoring in the greenhouse, which will complement the traditionally existing microclimate control system (in our case tomatoes) and clarify the mathematical model of the greenhouse as a spatially dispersed control object.

The inverted pendulum is a non-linear unbalanced system that needs to be controlled using motors to achieve stability and equilibrium. The inverted pendulum is constructed with Lego and using the Lego Mindstorm NXT, which is a programmable robot capable of completing many different functions. In this paper, an initial design of the inverted pendulum is proposed and the performance of different sensors, which are compatible with the Lego Mindstorm NXT was studied. Furthermore, the ability of computer vision to achieve the stability required to maintain the system is also investigated. The inverted pendulum is a conventional cart that can be controlled using a Fuzzy Logic controller that produces a self-tuning PID control for the cart to move on. The fuzzy logic and PID are simulated in MATLAB and Simulink, and the program for the robot is developed in the LabVIEW software., 5 pages, Accepted for The 6th International Conference on Mechatronics and Robotics Engineering (ICMRE 2020)

The traditional preservation and storage technology is relatively backward and can not meet the production needs. A monitoring system for fruit and vegetable storage environment is designed. This system includes two parts: upper computer and lower computer. The upper computer monitoring center is developed based on LabVIEW software, and the lower computer is controlled by AT89C51 single chip microcomputer. The system can accurately reflect the changes of temperature, humidity, carbon dioxide and other parameters of storage environment, and can timely respond to the control requests of temperature, humidity, carbon dioxide and other parameters. The test results show that the system realizes monitoring function of environmental parameters for fruits and vegetables storage and achieves the expected results, and has good application prospect.

It presents the simulation through the Hardware-in-the-loop (HIL) technique of a flow plant. The mentioned system is designed in the LabVIEW software and implemented in an FPGA. As a result of the system tests performed in manual mode, an absolute error of 0.02 is obtained in the simulated instruments. In addition, two controllers are designed (continuous and discrete), and the results indicate that the system works in real time and does not generate disturbances in response to the implemented controls.

Los fenómenos físicos derivados del efecto fotoacústico resultan de suma importancia en la determinación de propiedades térmicas. En el presente trabajo, se realiza una revisión del fenómeno, su desarrollo, aplicaciones y formas de mejorar la señal fotoacústica. Se fabricó e instrumentó un sistema experimental de lecturas fotoacústicas, con capacidad de hacer pruebas en un rango de frecuencia variable y constante. Primero, se realizó el diseñó, código G y fabricación de la mesa óptica en una maquina CNC de 3 ejes; luego, se estableció la comunicación del sistema experimental, utilizando la herramienta virtual LabView. Finalmente, se realizaron pruebas, los resultados obtenidos son consistentes con lo reportado en la literatura. El prototipo obtenido resulta ser muy compacto y práctico. Esto es posible, gracias a la eliminación de componentes mecánicas utilizadas en los sistemas tradicionales.

The goal of this paper is to present an implementation method for a Maximum Power Point Tracking (MPPT) algorithm using an electronic load and custom designed LabView software. The aim is to facilitate the testing of the algorithm in laboratory conditions, before it can be used in the real world, improving development time, facilitating cost reduction and offering confidence in the design. This paper analyses the most suitable MPPT algorithms for testing purposes and suggests a complete software and hardware implementation for hardware in the loop testing which can facilitate in-depth evaluation of different algorithms. In order to replicate realistic stimuli for the MPPT algorithm, a solar array simulator has been designed. Using the proposed method, the performance of various MPPT algorithms for different atmospheric conditions can be evaluated. The hardware and software setup have been tested and validated in laboratory conditions. The experimental results have validated the proposed evaluation method and the good dynamic response of the MPPT algorithm.

The mobility of people who have suffered a degenerative disease or an accident is partially or totally reduced, which limits their locomotive independence. Therefore, this paper presents a proposal that facilitates the mobility of people suffering from moderate levels of amyotrophic lateral sclerosis (ALS). A control system has been adapted to an electric wheelchair to provide it with a certain degree of intelligence. The acquisition of multimedia data is done with a small camera adapted to a glasses frame that the person must use. For eye patterns tracking, a recognition system is performed using the LabVIEW software environment. The control system that regulates the movement of the wheelchair was designed on the Raspberry Pi embedded board as a low-cost proposal. Experimental tests and user surveys validate the correct operation of this device.

In this paper, the impact of fog on performance of VLC communication is explored. Highly modular testing system is based on LabVIEW software, modified National Instruments software defined radios (SDR) and commercially available LED car taillights. This work focuses on performance testing of multistate QAM modulations formats impaired by fog. An optional reference laser is used to monitor fog density throughout the whole measurement. This paper will present our testing solution and measured parameters.

Nortek 500 portable eddy current flaw detectors is used to inspect and to characterize defects in Inconel 600 and copper with random physical properties. A program based on LabVIEW software is developed in order to realize the online inspection of device and to monitor the output signal. Simulation works were performed, using stochastic finite element method. The master parameters are calculated and discussed.

In this paper a fuzzy logic controller is designed to control the internal climatic conditions of a greenhouse for a particular type of medicinal plants to increase the yield in the field of ayurveda treatments. Here the medicinal plants those cannot grow in the particular region due to climatic conditions require for these plants. So to grow these plants we control the roof openings and water spills of the greenhouse to maintain the internal temperature of greenhouse using the implementation, with the LABVIEW Software. The results are studied for one day controlling of greenhouse that holds the temperature from 15 °C to 25 °C and humidity (Relative Humidity) from 70% to 90 %.

The article aims to promote an additional method of learning / demonstration for students, in order to make the activitys carried out in the electrotechnical laboratory much more attractive. Thus, besides the classical methods of direct calculation and measurement of the electrical parameters of an electrical circuit, it is proposed to utilize a simulation method using the labview software. This use of interactive software methods derives from the fact that most students are much more interested in using of the IT instruments, this domain being constantly expanding.

The paper designs a remote data acquisition system for hydraulic impactor by using virtual instrument technology, which simplifies the cumbersome acquisition process of traditional instruments. Writing the server and client program based on LabVIEW software and DataSocket communication technology. Then carrying out an experiment and analyzing the signal acquired from the client to verify the reliability of the data acquisition system.

This paper is focused on the results obtained in the both air speed and ball speed estimation by application an Extended Kalman Filter (EKF) on a pneumatic levitator, only using sphere position measurement. The EKF is implemented using real system data offline that were subsequently processed by LabVIEW software. Initially, the mathematical model of the levitator whose dynamics is non-linear are considerate. The system states are: the sphere position, the sphere speed and the air speed. Finally, the air speed and sphere speed are possible to estimate using an EKF and then those estimation are validated through the measurement of sphere position and the sphere speed calculated with offline system data.

In most of the present day buses, the main problem that causes discomfort to the passengers sitting in the rear seats is that the seats are not maintained at the same level from the ground ...

Background Deep brain stimulation (DBS) has shown wide clinical applications for treating various disorders of central nervous system. High frequency stimulation (HFS) of pulses with a constant intensity and a constant frequency is typically used in DBS. However, new stimulation paradigms with time-varying parameters provide a prospective direction for DBS developments. To meet the research demands for time-varying stimulations, we designed a new stimulation system with a technique of LabVIEW-based virtual instrument. Methods The system included a LabVIEW program, a NI data acquisition card, and an analog stimulus isolator. The output waveforms of the system were measured to verify the time-varying parameters. Preliminary animal experiments were run by delivering the HFS sequences with time-varying parameters to the hippocampal CA1 region of anesthetized rats. Results Verification results showed that the stimulation system was able to generate pulse sequences with ramped intensity and hyperbolic frequency accurately. Application of the time-varying HFS sequences to the axons of pyramidal cells in the hippocampal CA1 region resulted in neuronal responses different from those induced by HFS with constant parameters. The results indicated important modulations of time-varying stimulations to the neuronal activity that could prevent the stimulation from inducing over-synchronized firing of population neurons. Conclusions The stimulation system provides a useful technique for investigating diverse stimulation paradigms for the development of new DBS treatments.

Software supported procedure for generation of long-time complex test sentences, suitable for testing the instruments for detection of standard voltage quality (VQ) disturbances is presented in this paper. This solution for test signal generation includes significant improvements of computer-based signal generator presented and described in the previously published paper [1]. The generator is based on virtual instrumentation software for defining the basic signal parameters, data acquisition card NI 6343, and power amplifier for amplification of output voltage level to the nominal RMS voltage value of 230 V. Definition of basic signal parameters in LabVIEW application software is supported using Script files, which allows simple repetition of specific test signals and combination of more different test sequences in the complex composite test waveform. The basic advantage of this generator compared to the similar solutions for signal generation is the possibility for long-time test sequence generation according to predefined complex test scenarios, including various combinations of VQ disturbances defined in accordance with the European standard EN50160. Experimental verification of the presented signal generator capability is performed by testing the commercial power quality analyzer Fluke 435 Series II. In this paper are shown some characteristic complex test signals with various disturbances and logged data obtained from the tested power quality analyzer.