An Embedded System for Position and Speed Measurement Adopting Incremental Encoders

Faccio, Marco; Grande, Paolo; Parasiliti, F.; Petrella, Roberto; Tursini, M.

doi:10.1109/tia.2008.2002167

Cited by 32 publications

(19 citation statements)

References 2 publications

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“…Email: julian@isa.upv.es Liu, and Alsaadi 2016). In some low cost devices, DRS is also necessary for solving problems due to the low resolution of sensors (cheap encoders) (Petrella and Tursini 2008). These DRS cases are what is defined as MRIC (multi-rate input control) that is a slow output but a higher rate input which is the most common schema in DRS.…”

Section: Motivationmentioning

confidence: 99%

Dual-rate sampled-data systems. Some interesting consequences from its frequency response analysis

Salt

Alcaína

2019

International Journal of General Systems

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The main goal of this contribution is to introduce a new procedure in order to analyze properly SISO dual-rate systems (DRS) and to provide straightforward answers to some common general questions about this kind of systems. Frequency response analysis based on DRS lifting modeling can lead to interesting results about stability margins or performance prediction. As a novelty, it is explained how to understand DRS frequency response and how to handle it for an easy computation of magnitude and phase margins keeping classical frequency domain methods. There are also some repetitive questions about DRS that can be analyzed and answered properly using the results from this contribution: what the optimum relation between sampling periods is or what effects does delay have in a DRS . Every step is illustrated with examples that should clarify the understanding of the text.

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Section: Motivationmentioning

confidence: 99%

Dual-rate sampled-data systems. Some interesting consequences from its frequency response analysis

Salt

Alcaína

2019

International Journal of General Systems

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“…In this system, we use it for data acquisition, which can be processed by microcontroller. In addition, the advanced-control timer(TIM1) [3] can be seen as a three-phase PWM multiplexed on 6 channels. It has complementary PWM outputs with programmable inserted dead-times.…”

Section: Hardware Selection and Circuit Designmentioning

confidence: 99%

Automatic Vehicle Tracking System Based on Inductance Sensor

Cai¹,

Guo²,

Wang³

2017

Proceedings of the 7th International Conference on Education, Management, Information and Mechanical Engineering (EMIM 2017)

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Abstract. Automatic vehicle tracking system based on inductance sensor was designed. This system uses inductive sensor for data acquisition controlled by STM32 microcontroller. The vehicle is made up of L298N motor drive module, geared motor module, buzzer sound module, LCD module, encoder module, bluetooth module, and battery module, and in order to change direction and speed by DC motor, its four-wheel drive vehicle can output variable pulse signals. Microcontroller continually scans four-channel data of LDC1614 and controls vehicle to complete tracing action. If an obstacle is detected by it, the buzzer module will make a sound prompts. The precise timing can be obtained by the timer module, and the encoder module is designed to measure the speed of the vehicle. The designed system can implement the function of real-time display of time and distances, and has high precision and low power consumption.

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“…Este método elimina la oscilación en la estimación que se produce con los algoritmos tradicionales, lo cual aún aparece a velocidad constante. La causa de la oscilación es el truncamiento en la medida del tiempo y la posición, como se explica con detalle en [14].…”

Section: Implementación Del Método Nuevo De Estimación De Velocidadunclassified

Implementación en DSPIC de un algoritmo óptimo para la estimación de velocidad de giro<br />Implementation of an optimal algorithm for the estimation of angular speed in DSPICS

Rairán-Antolines¹,

Fonseca-Gómez²

2014

Iteckne

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Resumen-En este artículo se presenta la implementación de un método de medición de velocidad angular nuevo, cuando la información proviene de un encoder incremental. Parte del método es implementado en un dsPIC, mientras que el resto se programa en Simulink. La ventaja fundamental del método de medición es que produce una única aproximación cuando la velocidad es constante, en contraposición con los métodos convencionales, conocidos como a tiempo fijo y a espacio fijo, los cuales oscilan entre dos valores. Se presenta el control de velocidad de un motor, como ejemplo de aplicación, y se concluye que el método nuevo puede aplicarse para la aproximación de la razón de cambio, incluso cuando los datos no provienen de un encoder.Palabras clave-dsPIC, encoder, espacio fijo, medición de velocidad, tiempo fijo.Abstract-In this paper we present the implementation of a new method to measure angular speed when the data come from an incremental encoder. Part of the method is implemented in a dsPIC, whereas the remaining part was programmed in Simulink. The main advantage of the new method consists of having just one approximation at constant speed, whereas traditional methods oscillate between two values. The speed control of a motor serves as an application of the new method, which allows concluding that the proposed method can be used to estimate the rate of change of a variable even when the data do not come from an incremental encoder.

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An Embedded System for Position and Speed Measurement Adopting Incremental Encoders

Cited by 32 publications

References 2 publications

Dual-rate sampled-data systems. Some interesting consequences from its frequency response analysis

Dual-rate sampled-data systems. Some interesting consequences from its frequency response analysis

Automatic Vehicle Tracking System Based on Inductance Sensor

Implementación en DSPIC de un algoritmo óptimo para la estimación de velocidad de giro<br />Implementation of an optimal algorithm for the estimation of angular speed in DSPICS

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