scholarly journals Automatización De Una Sala De Ordeño Para El Control De Compuertas, Dosificación De Alimento Y Medición De Leche, Caso De Estudio: Espoch-Ecuador

2018 ◽  
Vol 14 (30) ◽  
pp. 419
Author(s):  
Freddy Patricio Ajila Zaquinaula ◽  
Christian Sánchez-Acosta ◽  
Juan Carlos Pacheco-Reinoso ◽  
Arisdorgan Diéguez Almaguer
Keyword(s):  
Control System ◽  
Measurement System ◽  
Automatic System ◽  
Programmable Logic ◽  
Viable Option ◽  
Control Software ◽  
Pneumatic Actuators ◽  
Scada System ◽  
Livestock Sector ◽  
Gate Control

This paper focuses on the development of an automatic system for a milking room in the Tunshi Experimental Center of the Polytechnic Superior School of Chimborazo, Ecuador. This research uses a theoretical, empirical and statistical methods, and it was carried out using the SCADA system. The proposal was integrated by three subsystems that fulfill specific functions. These functions are: gate control system, feed dosage control system, and milk measurement system. These subsystems use a Programmable Logic Controller (PLC) that is responsible for communicating with devices such as sensors, electrovalves, and pneumatic actuators. The PLC communicates through a process control server (PCS) using a Control Software developed in LabVIEW, which is responsible for the monitoring and controlling the SCADA System. This is done in order to propose a viable option in a bid to increase the competitiveness of the livestock sector.

scholarly journals A Component-Based Modeling and Validation Method for PLC Systems

2014 ◽  
Vol 6 ◽  
pp. 127618 ◽  
Author(s):  
Rui Wang ◽  
Yong Guan ◽  
Min Zhou ◽  
Jie Zhang ◽  
Xiaoyu Song
Keyword(s):  
Control System ◽  
System Architecture ◽  
General System ◽  
System Model ◽  
Programmable Logic ◽  
Control Software ◽  
Component Library ◽  
Validation Method ◽  
System Requirements ◽  
Software And Hardware

Programmable logic controllers (PLCs) are complex embedded systems that are widely used in industry. This paper presents a component-based modeling and validation method for PLC systems using the behavior-interaction-priority (BIP) framework. We designed a general system architecture and a component library for a type of device control system. The control software and hardware of the environment were all modeled as BIP components. System requirements were formalized as monitors. Simulation was carried out to validate the system model. A realistic example from industry of the gates control system was employed to illustrate our strategies. We found a couple of design errors during the simulation, which helped us to improve the dependability of the original systems. The results of experiment demonstrated the effectiveness of our approach.

scholarly journals Ultrasonic sensor enabled smart automated railway gate control system

2021 ◽  
Vol 1916 (1) ◽  
pp. 012137
Author(s):  
Kumar R Senthil ◽  
M Prabu ◽  
K S Rani ◽  
K Prabaakaran ◽  
Penekalapati Soniya Chowdary ◽  
...  
Keyword(s):  
Control System ◽  
Ultrasonic Sensor ◽  
Gate Control

Real-Time Micro-Fluidic Chip Pressure Control System Base on the Optical Interference

2014 ◽  
Vol 494-495 ◽  
pp. 1274-1277
Author(s):  
Kan Liu ◽  
Hao You
Keyword(s):  
Control System ◽  
Real Time ◽  
Measurement System ◽  
Interference Fringe ◽  
Pressure Control ◽  
Measured Data ◽  
Optical Interference ◽  
Interference Fringes ◽  
Pressure Control System

This article introduces a measurement system based on LabVIEW used for optical interference fringe on micro-fluidic chips. This system mainly uses cameras to capture real-time images of wedge interference fringe on micro-fluidic chips, then the collected images will be binarized by LabVIEW. The processed images will be divided by zone , determine the flatness and gap thickness of the micro-fluidic chips by interference fringes with different directions of deflection and numbers. Finally, feedback from measured data will be used to adjust the flatness and gap thickness of micro-fluidic chips in order to meet the requirement of tests.

Experimental Validation of Nominal Model Characteristics for Pneumatic Muscle Actuator

2013 ◽  
Vol 460 ◽  
pp. 1-12 ◽  
Author(s):  
Alexander Hošovský ◽  
Kamil Židek
Keyword(s):  
Control System ◽  
Nonlinear Differential Equations ◽  
Model Performance ◽  
Weight Ratio ◽  
Open Loop ◽  
Artificial Muscles ◽  
Pneumatic Actuators ◽  
Intelligent Control System ◽  
Pneumatic Artificial Muscles ◽  
The One

Pneumatic artificial muscles belong to a category of nonconventional pneumatic actuators that are distinctive for their high power/weight ratio, simple construction and low price and maintenance costs. As such, pneumatic artificial muscles represent an alternative type of pneumatic actuator that could replace the traditional ones in certain applications. Due to their specific construction, PAM-based systems have nonlinear characteristics which make it more difficult to design a control system with good performance. In the paper, a gray-box model (basically analytical but with certain experimental parts) of the one degree-of-freedom PAM-based actuator is derived. This model interconnects the description of pneumatic and mechanical part of the system through a set of several nonlinear differential equations and its main purpose is the design of intelligent control system in simulation environment. The model is validated in both open-loop and closed-loop mode using the measurements on real plant and the results confirm that model performance is in good agreement with the performance of real actuator.

Design of Hydraulic Descaling Computer Control System

2014 ◽  
Vol 608-609 ◽  
pp. 19-22
Author(s):  
Ping Xu ◽  
Jian Gang Yi
Keyword(s):  
Control System ◽  
Stability Problem ◽  
Computer Control ◽  
Control Methods ◽  
Computer Control System ◽  
Control Software ◽  
Pressure Water ◽  
Working Principle ◽  
The Stability

Hydraulic descaling system is the key device to ensure the surface quality of billet. However, traditional control methods lead to the stability problem in hydraulic descaling system. To solve the problem, the construction of the hydraulic descaling computer control system is studied, the working principle of the system is analyzed, and the high pressure water bench of hydraulic descaling is designed. Based on it, the corresponding computer control software is developed. The application shows that the designed system is stable in practice, which is helpful for enterprise production.

Design a PLC-Based Variable-Frequency Governing Pressure-Constant Water-Supply Control System

2014 ◽  
Vol 1044-1045 ◽  
pp. 755-758
Author(s):  
Xin Hui Yang
Keyword(s):  
Control System ◽  
Water Supply ◽  
Pressure Sensors ◽  
Variable Frequency ◽  
Pipe Network ◽  
Monitoring And Control ◽  
Control Software ◽  
Industrial Control ◽  
Time Basis ◽  
And Control

This paper provides a design for a PLC-based, variable-frequency governing, pressure-constant, automatic water-supply control system. This design is based on the current situations at the water supply plants found in small and medium cities in China. In this control system, the pressure signal across the pipe network is acquired by pressure sensors and then transmitted to PID modules in the PLC in order to control switching between pump motors. At the same time, the PLC is connected with a personal computer for industrial control purposes. On this computer, monitoring and control software has been installed in order to monitor and control the pressure-constant water-supply system on a real-time basis.

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