Research on Automatic Tape Vulcanizing Tank Hoisting Manipulator Based on PLC

2013 ◽  
Vol 373-375 ◽  
pp. 271-274
Author(s):  
Xiao Bin Pan ◽  
Yong Tao Li ◽  
Rong Zhou
Keyword(s):  
Control System ◽  
Solenoid Valve ◽  
Frequency Converters ◽  
The Core

In this paper, an automatic tape vulcanizing tank hoisting manipulator is designed to improve the accuracy and the efficiency in tape vulcanization. The hoisting manipulators control system takes Siemens S7-200 PLC as the core. By controlling two frequency converters and a solenoid valve, the hoisting manipulator not only movs along the Y-axis and Z-axis also clamps the vulcanizing mold. In addition, the hoisting manipulator communicates with the vulcanizing tank through PC / PPI bus and the RS232/485 interface port on PLC, achieving linkage production.

PLC Automatic Controlling System of Flushing Toilet

2012 ◽  
Vol 482-484 ◽  
pp. 1816-1820
Author(s):  
Cheng Yao Zhong
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Input Signal ◽  
Low Cost ◽  
High Sensitivity ◽  
Solenoid Valve ◽  
The Core ◽  
Controlling System ◽  
Flush Toilet ◽  
Hardware Circuit

A kind of PLC automatic control system which is used to flush toilet consists of programmable controller, proximity switch sensor and solenoid valve. By means of proximity switch sensor receiving input signal with the core PLC, PLC gives motion instruction to control solenoid valve carrying out flushing toilets automatically. In addition, this paper presents controlling procedure of ladder diagram. In the practical process of application, the system is of high sensitivity and good stability, at the meanwhile, the hardware circuit is simple and easier to be maintained. As far as the system is concerned, the system can be applied to different places with appropriate designs of procedure. Owning to the good universals and low cost there is better prospect for application.

Study on Novel Automatic Steel Bundling Machine Pneumatic Control System

2012 ◽  
Vol 490-495 ◽  
pp. 594-597
Author(s):  
Cheng Qun Li ◽  
Liang Gao
Keyword(s):  
Control System ◽  
Control Program ◽  
Control Flow ◽  
Pneumatic Control ◽  
The Core ◽  
New Type ◽  
Action Process ◽  
And Control

This paper introduces a new type of automatic steel bundling machine for bundling process, which includes a pneumatic action process, mainly do some researches on the pneumatic control system. The system chooses PLC as the core control component, puts forward the hardware of control system and control flow. Eventually we have been designed the control program.

ON TWO THEOREMS OF QUINZII AND RENT CONTROLLED HOUSING ALLOCATION IN SWEDEN

2007 ◽  
Vol 09 (03) ◽  
pp. 515-525
Author(s):  
KIMMO ERIKSSON ◽  
JONAS SJÖSTRAND
Keyword(s):  
Control System ◽  
Empirical Data ◽  
General Theorem ◽  
Black Market ◽  
Utility Functions ◽  
Rent Control ◽  
Black And White ◽  
The Core ◽  
Special Cases ◽  
Housing Allocation

The Swedish rent control system creates a white market for swapping rental contracts and a black market for selling rental contracts. Empirical data suggests that in this black-and-white market some people act according to utility functions that are both discontinuous and locally decreasing in money. We discuss Quinzii's theorem for the nonemptiness of the core of generalized house-swapping games, and show how it can be extended to cover the Swedish game. In a second part, we show how this theorem of Quinzii and her second theorem on nonemptiness of the core in two-sided models are both special cases of a more general theorem.

A Novel Full-Automatic Garbage Salvage Ship

2013 ◽  
Vol 791-793 ◽  
pp. 1921-1924
Author(s):  
Ke Ling Luo ◽  
Xu Dong Li ◽  
De Rui Song ◽  
Ping Wang ◽  
Jiao Fu ◽  
...  
Keyword(s):  
Control System ◽  
Obstacle Avoidance ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Power Circuit ◽  
The Core ◽  
Photoelectric Sensor

The garbage salvage ship is made from polystyrene plastic as hull framework and STC89C52 single-chip microcomputer to control the core, and consists of DC gear motor, photoelectric sensor, power circuit and other circuits. The system uses STC89C52 to control the boat to move forward, backward or turn through the I/O port. Tracing is finished by infrared obstacle avoidance sensor E18-D80NK. Working manner of the infrared obstacle avoidance sensor E18-D80NK was introduced and its application scheme based on STC89C52 single-chip microcomputer in the control system of garbage salvage ship was put forward.

Studies on Implementations and Designs of DSP in the Six-Phase Induction Motor Vector Control System

2011 ◽  
Vol 268-270 ◽  
pp. 1681-1686
Author(s):  
Chao Yong Tuo
Keyword(s):  
Control System ◽  
Vector Control ◽  
Digital Signal Processor ◽  
Induction Motors ◽  
Digital Signal ◽  
Voltage Level ◽  
The Core ◽  
Three Phase ◽  
Vector Control System ◽  
Lower Voltage

Compared with traditional three-phase motors, six-phase induction motors due to their high reliabilities and low DC side voltages can achieve high power drives using devices with lower voltage level. In this paper, it analyzes the research status of six-phase induction motors, introduces the winding structures of six-phase induction motors, and finally designs the vector control system for six-phase induction motors taking the Digital Signal Processor (DSP) as the core. It introduces DSP circuit implementations, emphasizes to describe software structures of the control system, and proposes a detailed software flow chart.

scholarly journals Application of Artificial Intelligence Technology in Mechanical Electrical Control System

2021 ◽  
Vol 2066 (1) ◽  
pp. 012057
Author(s):  
Nan Li
Keyword(s):  
Artificial Intelligence ◽  
Control System ◽  
Control Systems ◽  
Current Status ◽  
Work Efficiency ◽  
Electrical Control ◽  
Existing Problems ◽  
The Core ◽  
Core Technology ◽  
Artificial Intelligence Technology

Abstract Artificial intelligence technology (A I T) has also been widely used in society. Combining A I T with mechanical and electrical control systems will bring huge profits to the corporate sector and greatly improve work efficiency. It can save a lot of money in the electrical control operations of all walks of life in the country, and fill the gap in this technology in the country. The purpose of this article is to study the application of A I T in mechanical electrical control systems (M E C S). This article first introduces the basic theories and concepts of A I T, extends the core technology of A I T, and combines the current status of the electrical control system of modern enterprises in our country to discuss its existing problems, and finally studies and analyzes A I T and machinery. Combination of electrical control systems, and discuss the application of A I T in mechanical electrical orifice subsystems. Experiments show that, compared with the existing M E C S, the M E C S using A I T can better complete the work and improve work efficiency.

scholarly journals Improving of operation stability of frequency converters with active rectifiers in electric steel-making complex electrical equipment switching

Vestnik IGEU ◽  
2019 ◽  
pp. 48-58
Author(s):  
A.A. Nikolaev ◽  
A.S. Denisevich ◽  
V.S. Ivekeev
Keyword(s):  
Control System ◽  
Power Supply ◽  
Electric Arc ◽  
Voltage Sags ◽  
Parallel Operation ◽  
Frequency Converters ◽  
Active Rectifier ◽  
Arc Furnaces ◽  
Operation Stability ◽  
Active Rectifiers

Frequency converters with active rectifiers (FC-AR) are now used in rolling mill electric drives. Modern control systems of ARs are not adapted to voltage sags in power supply systems, which leads to converter tripping. The known methods of ensuring AR operation stability, such as kinetic buffering, correction signals based on negative sequence voltage and others, do not eliminate these emergency trips. As an additional measure the paper proposes the method of voltage sag compensation by using static var compensators (SVC) of electric arc furnaces (EAF) for parallel operation of frequency converters with active rectifiers and electric arc furnaces. However, it remains unknown how disturbances (such as overvoltages of switching of SVC harmonic filters (HF) and voltage sags during furnace transformer switching) affect operation stability of frequency converters with active rectifiers. All this makes it necessary to study the effect of these processes on the operation conditions of FC-AR and to improve the active rectifier control system. The authors used experimental arrays of instantaneous values of voltages and currents of the real-life complex «EAF-SVC» («Electric Arc Furnace – Statistic VAR Compensator») in this study. They also applied mathematical models of FC-AR with different PWM algorithms realized in Matlab-Simulink software. The main assumption of the model consists in using equivalent current sources modelling the operation of autonomous voltage invertors. An improved control system of AR has been developed. The main feature that distinguishes it from the known systems is the fact that it ensures operation stability during SVC harmonic filter and EAF transformer switching by using a signal conditioning unit for setting the active rectifier reactive current component as a function of power supply and AR input voltage difference. Implementation of the improved AR control system improves FC-AR stability during parallel operation with EAFs through reactive power consumption of the supply system. As a result, it reduces the amplitude of inrush current and voltage deviations in the DC-link of the FC-AR to the values lower than the setpoints of the AR protection system.

Temperature/Humidity Control System Based on Micro Controller Unit in the Room of Bikram's Yoga

2012 ◽  
Vol 529 ◽  
pp. 352-355
Author(s):  
Na Li ◽  
Yong Gang Tang ◽  
Gui Ying Wang
Keyword(s):  
Control System ◽  
Humidity Sensor ◽  
Control Unit ◽  
Data Display ◽  
Control Temperature ◽  
The Core ◽  
Wireless Transceiver ◽  
Remote System ◽  
And Control ◽  
Micro Controller Unit

This thesis has designed a temperature/humidity remote system which takes Micro controller Unit AT89S51 as the core control unit. The system consists of Micro controller Unit, SHT75 temperature/humidity sensor, Rok 101 007 wireless transceiver and PC data display modules. The system can detect and control temperature/humidity in the room of Bikram's yuga remotely to create an environment suitable for fitness in high temperature.

Improving the control system of the wire laying unit of the thin drawing mill

2020 ◽  
pp. 71-75
Author(s):  
А.В. Белый
Keyword(s):  
Control System ◽  
Functional Diagram ◽  
Protection System ◽  
Electric Drives ◽  
Frequency Converters ◽  
Mode Of Operation ◽  
Reversal Mechanism ◽  
The Wire ◽  
Winding Wire ◽  
Drawing Mill

В статье приводится описание разработки усовершенствованной системы регулирования аппарата укладки проволоки на стане тонкого волочения. Модернизация системы регулирования направлена на устранение недопустимого режима работы стана, когда намотка проволоки на катушку осуществляется без ее равномерной укладки, вследствие выхода из строя механизма реверсирования укладчика. Разработана функциональная схема системы защиты от остановки укладчика в процессе намотки проволоки на катушку. Реализация данной схемы выполнена на базе существующих систем регулирования преобразователей частоты в электроприводах аппаратов намотки и укладки. Приведено описание работы защиты от остановки укладчика. The article describes the development of an improved system for regulating the apparatus for laying wire on a thin drawing mill. The modernization of the control system is aimed at eliminating the unacceptable mode of operation of the mill, when the wire is wound on a coil without evenly stacking it, due to failure of the stacker reversal mechanism. A functional diagram of the stacker stop protection system was developed during the process of winding wire onto a spool. The implementation of this scheme is based on existing systems for regulating frequency converters in electric drives of winding and stacking machines. The description of the operation of the protection against stopping the stacker is given.

scholarly journals Twin Channel of Speed Control System Based on DSP

2011 ◽  
Vol 2-3 ◽  
pp. 447-451
Author(s):  
Bin Li ◽  
Zheng Feng Cao ◽  
Jin Ping Hong
Keyword(s):  
Control System ◽  
Frequency Conversion ◽  
Speed Control ◽  
Regulation System ◽  
Motor Speed ◽  
The Core ◽  
Speed Regulation ◽  
Speed Control System ◽  
Complex Algorithm ◽  
Exchange Data

A microprocessor as the core of the digital controller has become one of the major features AC speed regulation system in modern. Based on DSP as the core of the speed control system，it can realize complex algorithm. At the same time, it can achieve the diagnosis of system’s fault, and the self-setting of parameters controlled, etc. Thus it can make the motor speed control system have higher performance. This paper introduces the motor speed control system which consists of three DSP. This system is able to adjust two Frequency conversion motor. Division of work to the DSP is according to the function of DSP. Inter-DSP makes use of dual-port RAM to exchange data and communicate. They work together to achieve and improve the performance of the control system.

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