scholarly journals LoRa Network Based Integrated Sluice Gates Group Automation Control System

2021 ◽  
Author(s):  
Yuhong Li ◽  
Jiajun Lu ◽  
Qiuhong Huang ◽  
Ji Xiong ◽  
Dan Li ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Water Level ◽  
Power Supply ◽  
Field Work ◽  
Level Gauge ◽  
Monitoring Centre ◽  
Different Types ◽  
Gate Control ◽  
Automation Control

A kind of gate automation group control system is designed based on LoRa networking, which is composed of intelligent gate control subsystems installed on all levels of channels, LoRa network and a cluster control system running in the monitoring centre. The system uses the water level and flow rate method, Doppler ultrasonic flowmeter, and laser water level gauge to realize the automatic metering function of the gate; the ultra-low power gate cluster control system based on LoRa network realizes the intelligent control and wireless remote communication of the gate terminal; Provides three different types of gate automatic control modes to meet the water supply needs of different types of irrigation areas; through the design of dual-circuit redundant power supply system design for solar power supply and mains power supply, the power supply problem of the gate field work is solved; remote dynamic water transfer control application software package realize the remote control, automatic control and system linkage of the gate.

EXPERIMENTAL STUDIES ON THE DEVELOPMENT OF AN AUTOMATED SYSTEM FOR REGULATING THE SOIL DENSITY USED IN A SEEDING MACHINE

2021 ◽  
pp. 9-15
Author(s):  
ALEKSEI S. DOROKHOV ◽  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Power Supply ◽  
Experimental Studies ◽  
Automated System ◽  
Statistical Characteristics ◽  
Vegetable Crops ◽  
Soil Density ◽  
Density Control

Research on the development of an automatic control system for the rolling-in working units is aimed at establishing the reliability and analytical relationships, determining the quality indicators of work in real conditions of the rolling-in working units of a seeding machine, and checking the patterns obtained in the fi eld and identifi ed theoretically. Research on the development of an automatic control system for the rolling implements was carried out when sowing dragee seeds of table beet of the Bordeaux variety with a seeding unit consisting of a Belarus-4235 tractor and a Monopil S15/12 precision seeding machine. The system for automatic control of soil density includes the main hardware and software: actuators for maintaining and deepening the rolling working units, microcontrollers, motor drivers, a non-contact ultrasonic sensor, a power supply unit and a sensor for measuring soil density. The paper presents the results of a study to determine the soil density when sowing seeds of table beet, depending on the moisture content of the soil in the sowing layer. The authors describe research methodology, provide graphical relationships between changes in soil density and the depth of seeding, and comment on the main obtained statistical characteristics of the experiment. As a result of the study, structural, echnological and functional diagrams of a rolling rink with an automatic control system using electronically controlled electric cylinders (linear actuators) have been developed. The optimal parameters of the linear drive of the press roller have been established: power - 50W, power supply - 12V, rod stroke - 200…600 mm, speed - 10…45 mm/s, load - 200…900 N. Experimental studies have shown the applicability of the presented system of the automatic control of soil density, which ensures the optimum density of the seedbed of 1.3…1.4 g/cm³. The described technique can be used to develop a soil density control system when sowing seeds of other vegetable crops.

The Design of Automatic Control System for Greenhouse Based on Microcontroller

2013 ◽  
Vol 446-447 ◽  
pp. 1188-1192
Author(s):  
Xin Yu Sun
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Performance Test ◽  
Scientific Basis ◽  
Automatic Control Theory ◽  
Output Efficiency ◽  
Automation Control ◽  
New Situation ◽  
Greenhouse Control ◽  
High Output

Recently, with the rapid agricultural application progress in China, greenhouse control issues have been better addressed. The greenhouse control technology, as an emerging technology, is increasingly being widespread attended, and is gradually walking in the direction of constructing good quality, high output efficiency agricultural systems. In this new situation, we need to carry out market research, carefully research the greenhouse automatic control theory based on SCM technology, and design automation control system with best effect. The performance test result shows: This new system has a good usable performance, while related technology can provide a scientific basis for further research in the future. Keywords.Microcontroller; greenhouse automatic control.

Elevator Brake Release Automatic Control System

2011 ◽  
Vol 130-134 ◽  
pp. 3502-3504
Author(s):  
De Min Zhang ◽  
Xue Hui Liang
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Power Supply ◽  
Operation Mode ◽  
Control Board ◽  
Rescue Operation ◽  
Floor Level ◽  
Electrical Control ◽  
Operation Control

The brake release electrical control board is a very important element of the elevator rescue operation control system. The brake release board provides a power supply to operate an elevator brake by a battery in rescue operation mode to allow a motion of a car until the next floor level to release any passengers. The brake release board has some buttons to operate the car and some LED’s to indicate the state of running. There are also some parameters in the board to adjust the operation.

Pulse Power Supply Control System

2011 ◽  
Vol 130-134 ◽  
pp. 2143-2146
Author(s):  
Xiang Jin Zhang ◽  
Na Shen
Keyword(s):  
Control System ◽  
Power Supply ◽  
Control Program ◽  
Pulse Power ◽  
Multiple Channels ◽  
Pulse Power Supply ◽  
Communication Mode ◽  
Optical Encoder ◽  
Discharge Characteristics ◽  
Automation Control

A novel pulse power supply charge and discharge automation control program is proposed. The program is based on optical encoder communication mode power supply switch trigger technology. According to the requirements of control system and through the analysis of high power charge and discharge characteristics of pulse power, the whole design for the control system (multiple channels) is completed.

scholarly journals Features of Automatic Control of Technological Parameters of Water Level in the Drum Steam Boilers

2019 ◽  
Vol 54 (3) ◽  
Author(s):  
Isamiddin Siddikov ◽  
Dilnoza Umurzakova
Keyword(s):  
Control System ◽  
Power Control ◽  
Automatic Control ◽  
Water Level ◽  
Control Systems ◽  
Technological Parameters ◽  
Steam Boilers ◽  
Automatic Power Control ◽  
Boiler Drum

The three-pulse system of automatic control of the water level in the boiler drum received maximum distribution in the energy sector, as well as its modifications, which have the following disadvantages : the presence of static control errors at the end of the transition process in the development of internal disturbances and disturbances of superheated steam flow; large level deviations with sharp and significant changes in the load, which often leads to unloading or shutdown of the boiler or power unit. To eliminate these drawbacks, invariant systems for automatic regulation of the power supply of the drum boiler were previously developed. In work the system of automatic control of technological parameters of water level in a drum of steam boilers is considered. The description of control systems and a detailed description of the electrical power systems of the control system are given. Various methods of tuning the PI controller of a typical three-pulse automatic power control system are considered. The application of the method of structural-parametric optimization and the theory of invariance makes it possible by changing the structure of the system and optimizing the dynamic adjustment of the automatic power control system to significantly improve the quality of maintaining the water level in the boiler drum. Invariant automatic control systems eliminate static control errors under all influences and can significantly improve the quality of maintaining the level under variable conditions. The methods are proposed to significantly improve the quality of water level control in the boiler drum, eliminating the shortcomings of the typical automatic control system. The results of the work can be used in the design of power control systems of steam drum boilers. The results obtained can be used in the development of adaptive control systems for other thermal power facilities.

scholarly journals Development Of Cost-Saving Energy For Home Lighting Based Microcontroller and RTC

2019 ◽  
Vol 2 (2) ◽  
pp. 20-24
Author(s):  
Benriwati Maharmi ◽  
Toriq Kardova ◽  
Ermawati
Keyword(s):  
Control System ◽  
Cost Saving ◽  
Automatic Control ◽  
Power Supply ◽  
Setting Time ◽  
Electrical Energy ◽  
Test Results ◽  
Saving Energy ◽  
Real Time Clock ◽  
The Cost

The use of controlled and efficient electrical energy can save the cost of electricity expenditure. This study aims to design the cost saving energy tool for household scale of lighting using automatic microcontroller system. The design of the appliance used the automatic control system of home lights, which setting time using RTC (Real Time Clock) and a microcontroller Arduino Mega 2560. Power supply on this system was operated to supply power all existing components and controller using Arduino Mega 2560 microcontroller. Based on the test results, the cost-saving energy tool worked as an expectation of controlling the On/Off lights automatically, the RTC and current sensors can work properly to limit the current. Therefore, this design proposed can reduce the cost of electrical energy.

scholarly journals Automatic water level control system using discretized components

2020 ◽  
Vol 24 (10) ◽  
pp. 1781-1785
Author(s):  
A Big-Alabo ◽  
C Isaac
Keyword(s):  
Control System ◽  
Water Level ◽  
Power Supply ◽  
Power Supply Unit ◽  
Design Approach ◽  
Programmable Logic ◽  
Level Control ◽  
Level Control System ◽  
Control Switch ◽  
Underground Tank

This study is based on the design of a portable automatic water level control switch that is capable of switching on the pump when the water level in the overhead tank goes low and switches it off as soon as the water level reaches a pre-determined level to prevent dry-run of the pump in case the level in the underground tank goes below the suction level. The water in the tank is measured by the conductive probes and displaced via the LED indicators. At maximum-set capacity the pump is de-energized to automatically switch off, thereby stopping the inflow of water into the tank. The design approach involves three major stages which are: the power supply unit, the sensing unit, and the motoring and relay unit. The uniqueness of this work is the use of discrete components such as transistors to achieve water level control. This approach is more economical, simpler and easier to implement than the sophisticated programmable logic controllers and computerized microprocessors. Keywords: discrete components; conductive probes; sensors; relays; pump

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