scholarly journals TEKNOLOGI IRIGASI OTOMATIS BERTENAGA SURYA DI KELOMPOK TANI CAHAYA TANI KECAMATAN TARAKAN UTARA KOTA TARAKAN

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Sudirman Sirait ◽  
Dwi Santoso ◽  
Saat Egra
Keyword(s):  
Soil Moisture ◽  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Automatic Control System ◽  
Solar Power ◽  
Sprinkler Irrigation ◽  
Total Power ◽  
Set Point ◽  
Solar Powered

ABSTRACT One effort to increase irrigation efficiency is the use of solar power-based automatic control systems. This technological innovation was designed by utilizing digital technology, microcontroller and sensor network. This automatic control system operates based on the value of soil moisture as the lower set point value and the upper set point value to set the pump on/off. The aims of this research are to develop a solar-powered automatic control system with reference to the control of soil moisture for set on/off the pump and can keep the soil moisture from the water capacity. The stages of the research are hardware design of solar-powered control systems, design of automatic control system software, design of sprinkler irrigation networks, testing and data analysis. The results showed that the total power to operate an automatic sprinkler irrigation system of 67.0 Watt and can reduce battery consumption of 234.7 Watt. The use of a 30 Wp solar panel unit is able to meet the power needed for the automatic control system during the experiment. Keywords: automatic control system, microcontroller, solar power, sprinkler irrigation ABSTRAK Salah satu usaha untuk meningkatkan efisiensi irigasi adalah penggunaan sistem kontrol otomatis berbasis tenaga surya. Inovasi teknologi ini dirancang dengan memanfaatkan teknologi digital, mikrokontroller dan jaringan sensor. Sistem kontrol otomatis ini beroperasi berdasarkan nilai kelengasan tanah sebagai nilai set point bawah dan set point atas untuk mengatur on/off pompa. Penelitian ini bertujuan untuk mengembangkan sistem kontrol otomatis bertenaga surya dengan acuan kendali kelengasan tanah untuk pengaturan on/off pompa dan menjaga kondisi tanah dari kapasitas lapang. Tahapan penelitian yaitu perancangan hardware sistem kontrol otomatis bertenaga surya, perancangan software sistem kendali, perancangan jaringan irigasi sprinkler, pengujian dan analisis data. Hasil percobaan menunjukkan total daya untuk mengoperasikan sistem irigasi sprinkler otomatis 67,0 Watt dan menghemat penggunaan daya baterai sebesar 234,7 Watt. Penggunaan 1 unit panel surya 30 Wp mampu mencukupi daya yang dibutuhkan untuk mengoperasikan sistem kontrol otomatis selama percobaan. Kata kunci: irigasi sprinkler, mikrokontroller, sistem kontrol otomatis, tenaga surya

The Research on Multi-Axes Automatic Motion Control Systems

2012 ◽  
Vol 459 ◽  
pp. 75-78
Author(s):  
Lian Jun Hu ◽  
Xiao Hui Zeng ◽  
Gui Xu Chen ◽  
Hong Song
Keyword(s):  
Control System ◽  
Embedded Systems ◽  
Automatic Control ◽  
Control Systems ◽  
Motion Control ◽  
Automatic Control System ◽  
Experimental Results

An automatic control system for multi-axes motions based on multi-CPU embedded systems is proposed in the paper, in order to overcome insufficiencies of available multi-axes automatic dispensing control systems. It is shown from experimental results that expected control objectives for multi-axes motions are achieved.

SURVEY AND ADJUSTMENT OF CONTROLLER OF A GRAPH-ANALYTICAL METHOD TO A SECOND ORDER OBJECT

2020 ◽  
Vol 70 (2) ◽  
Author(s):  
Boris Grasiani
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Quality Indicators ◽  
Automatic Control System ◽  
Complex Plane ◽  
Analytical Method ◽  
Second Order ◽  
Location Of Zeros ◽  
Zeros And Poles

This paper proposes to adjust the controller using a graph-analytical method in the complex plane. The various configurations regarding the location of zeros and poles to those of the object are also considered. Adjusted controllers are surveyed, such as they are integrated into control systems, and some of the quality indicators of an automatic control system are analyzed.

scholarly journals Sampling Rate Impact on the Tuning of PID Controller Parameters

2016 ◽  
Vol 62 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Michal Laskawski ◽  
Miroslaw Wcislik
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Automatic Control System ◽  
Pid Controller ◽  
Sampling Rate ◽  
Sampling Period ◽  
Pid Controllers ◽  
Optimal Parameters ◽  
The Impact

Abstract The paper deals with an analysis of automatic control system with continuous and discrete PID controllers. A method of tuning the parameters of the continuous controller is presented, which is optimal according to the ITAE criterion. The behavior of control systems with discrete controllers whose parameters were tuned using the mentioned method are described. The impact of changes in the sampling period of controlled signal on the control quality is shown. Changes of the values of optimal parameters of discrete PID controllers in relation to changes of the sampling rate of controlled signal are characterized.

scholarly journals CONCEPT OF AUTOMATIC CONTROL SYSTEM FOR IMPROVING THE EFFICIENCY OF THE ABSORPTION REFRIGERATING UNITS

2017 ◽  
Vol 8 (4) ◽  
Author(s):  
O. Titlova ◽  
V. Khobin ◽  
O. Titlov
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Production Process ◽  
Control Systems ◽  
Heat Loss ◽  
Automatic Control System ◽  
General Concept ◽  
Ammonia Vapor ◽  
Automatic Control Systems

The general concept of the automatic control systems constructing for increasing the efficiency of the artificial cold production process in the absorption refrigerating units is substantiated. The described automatic control systems provides necessary degree of the ammonia vapor purification from the water in all absorption refrigerating units modes and minimizes heat loss from the dephlegmator surface.

scholarly journals MODELING OF A SYSTEM FOR AUTOMATIC REGULATION OF THE TENSION MODE IN THE ROUGHING GROUP OF STANDS OF A CONTINUOUS SECTION MIL

2021 ◽  
pp. 67-73
Author(s):  
Ivan Marynych ◽  
Olga Serdiuk
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Automatic Control System ◽  
Rolling Mill ◽  
Rolling Speed ◽  
Automatic Regulation ◽  
Automatic Control Systems ◽  
Rolling Mode ◽  
Uneven Heating

The subject of the research is automatic control system modeling features for tensioning of stands roughing group, which takes into account changes in the rolling speed at exit of the previous stand and entrance to the next stand. Control systems for high-speed rolling on section mills are the most critical systems, since the trouble-free operation of rolling mill largely depends on their work. Rolling speed control is understood to mean tension regulation in the roughing group of stands and stabilization of the rolling loop in the finishing groups. The influence of such technological factors as uneven heating of blanks, change in the crimping mode in stands, etc. leads to the appearance of tension or back-up forces, deviation of rolled loop from the specified values. Tension rolling, in contrast to loop rolling, is a stable rolling mode. However, (at significant values of tension in the rolled products) such a rolling mode leads to different thicknesses of the finished product. The loop rolling mode is an unstable mode and is impossible without automatic control systems. Both in the tension rolling mode and in the free rolling mode with a loop, it is necessary to study automatic control systems in order to determine the possibilities of compensating for disturbing influences and obtaining rolled products of the given accuracy. Therefore, the main task of the automatic control system is to maintain the rolling mode with the lowest possible tension. To achieve this goal, direct control of the tension of the rolled strip with modern technical means is rather difficult, and the operation of tension control systems is based on indirect methods of measuring it, and the study of the system efficiency is reduced to modeling the process itself. The developed model consists of three stands and two inter-stand spaces, since it takes into account changes in rolling speed at the exit of previous stand and the entrance to the next stand. It is due to this that adequate simulation results are obtained that are close to the real rolling process. Keywords: automation, rolls, stand, inter-stand spacing, modeling, loop tension, rolling mill, roughing group.

scholarly journals Choosing parameters of vessel’s course automatic control system under the influence of water-wave disturbances

2020 ◽  
Vol 26 (1) ◽  
pp. 27-40
Author(s):  
Максим Валерійович Левінський ◽  
◽  
Валерій Михайлович Левінський ◽  
◽  
◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Fuel Consumption ◽  
Automatic Control System ◽  
Water Wave ◽  
Manual Operation ◽  
Automatic Control Systems ◽  
Wave Disturbances ◽  
Influence Of Water

opicality. Modern vessel’s course automatic control systems allow to reduce ship’s running time and fuel consumption during voyage compared to manual operation. Effectiveness of their implementation depends on the timely adjustment of the controller parameters following the changes in the vessel’s dynamics, which requires usage of adequate models and qualification of the maintenance stuff.

scholarly journals Optimization of nonlinear pulse systems of automatic control with astatic objects

2020 ◽  
pp. 61-70
Author(s):  
O. Sinyavsky ◽  
◽  
V. Kisten ◽  
N. Solomko ◽  
◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Pulse Duration ◽  
Automatic Control System ◽  
Linear Element ◽  
Optimal Parameters ◽  
First Order ◽  
Automatic Control Systems ◽  
In Series

Currently, nonlinear pulse automatic control systems have become widespread, so there is a need to develop methods for their study. Pulse regulators are created on the basis of positional with the addition of pulse breakers. They can be represented as a non-linear element, a simple impulse element and a forming circle connected in series. The aim of the study was to determine the optimal parameters for setting up a relay-pulse controller for an astatic object with a delay. When determining the parameters of adjustment of the relay-pulse regulator for the quality indicator in the optimization of the automatic control system was taken as the total square deviation. Applying this criterion, the pulse duration of the regulator was determined. The time quantization interval is determined from the condition of ensuring the absolute stability of the automatic control system. Analytical dependences were obtained to determine the pulse duration and time quantization interval, which make it possible to determine the debugging parameters of the relay-pulse controller for a first-order astatic object with a delay. This ensures a minimum control error, and the control system is stable.

Designing a Telemetry System of Temperature and Soil Moisture for Irrigation Control

2015 ◽  
Vol 771 ◽  
pp. 38-41
Author(s):  
Infianto Boimau ◽  
Endarko
Keyword(s):  
Soil Moisture ◽  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Information Control ◽  
Automated Control ◽  
Modern Agriculture ◽  
Main Requirement ◽  
Physical Variables ◽  
Agricultural Areas

Water is the main requirement for the agricultural crops. However, improper amount of water can disturb the plant growth. In modern agriculture, this issue can be tackled by providing the appropriate amount of water for the plant. One of the methods is automatic control system based on the type of physical variables, which indicates water needs for plants [1]. Physical variables that are frequently used as an indicator are temperature and soil moisture [2].The automatic control system can also be applied in agricultural areas that have less water availability. This is due to the automatic control system can help saving water and operating costs [3]. Efforts in building optimal and efficient automated control system can be easily done with complete access to information. One way to access the information control system is via wireless communications [3,4]. From some of these challenges an automatic control system will be built on the research for controlling irrigation in telemetry based on temperature and soil moisture.

scholarly journals DEVELOPMENT OF THE AUTOMATIC SYSTEM OF SHEET HIRE PREPARATIONS POSITIONING

2020 ◽  
pp. 72-74
Author(s):  
S. P. Smolyakov ◽  
V. D. Zhokhov ◽  
V. G. Barabanov
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Automatic Control System ◽  
Automatic System ◽  
Positioning Systems ◽  
Positioning Device ◽  
Artificial Neural

The paper analyzes the existing positioning systems of metal billets and their control systems. An automatic control system for a positioning device based on an artificial neural network has been developed.

scholarly journals СПЕКТРАЛЬНЫЕ ПЛОТНОСТИ РЕГУЛИРУЕМЫХ ПЕРЕМЕННЫХ ТИПОВЫХ САР И ИХ АППРОКСИМАЦИЯ МАЛОПАРАМЕТРОВЫМИ МОДЕЛЯМИ

2018 ◽  
Vol 9 (4) ◽  
Author(s):  
В. А. Хобин ◽  
С. И. Лагерная
Keyword(s):  
Control System ◽  
Spectral Density ◽  
Automatic Control ◽  
Control Systems ◽  
Real Time ◽  
Automatic Control System ◽  
Control Object ◽  
Mathematical Expression ◽  
Computer Experiments ◽  
Automatic Control Systems

Two groups of the mathematical models, which describe changes in the regulated variables of closed automatic control systems as stochastic processes, are considered in the article. The first group is the informative models, obtained on the basis of analytical transformations that represent in the model of the process spectral density all the parameters of the object, regulator and perturbation effects models. The second group is well reflecting the nature of the spectral density formal models with a minimum number of parameters. This makes it possible to identify them in the real time, during the regular operation of the automatic control system. Comparison of models, including computer experiments based on simulation show the potential promise of their application for identifying the parameters of control object models in real time and without opening the control loop of automatic control systems.  In the article the mathematical description of the automatic control system is considered taking into account the features of the  technological type control objects, such as the presence of delay in the control channels, susceptibility to uncontrolled disturbances (intensive coordinate disturbances and parametric, low-frequency disturbances). A detailed considered the procedure for obtaining a mathematical expression for the informative models of the controlled variable spectral density for test typical variants of various system properties and perturbations combinations. The illustrations of the controlled variable of automatic control systems spectral density features are presented for various types of systems. There are also presented the possibility of replacing the informative controlled variable spectral density models with formal ones.

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