scholarly journals Intelligent control of the debarker tool

Author(s):  
В.В. Побединский ◽  
И.Н. Кручинин ◽  
С.В. Ляхов ◽  
Е.В. Побединский

Рассмотрена проблема совершенствования роторных окорочных станков, которые во всех технологиях лесопереработки лесопромышленных стран используются в обязательном порядке. Несмотря на достаточно отработанную конструкцию, тем не менее, основные технологические операции станка не оснащены современными адаптивными системами автоматического управления (САУ). Ранее были предложены разработки на основе пневмогидропривода с использованием автоматического управления на основе нечеткой логики. В предложенной системе автоматического управления выполняется стабилизация заданного усилия прижима режущего инструмента – короснимателя. Однако заданное усилие зависит от ряда технологических параметров, которые характеризуются неопределенностью, и проблема управления заданным прижимом инструмента осталась нерешенной. Таким образом определилась цель исследований, которая заключалась в создании интеллектуальной системы автоматического управления заданным прижимом короснимателя окорочного станка. Решались следующие задачи: 1) разработка схемы интеллектуального управления короснимателем; 2) разработка схемы обобщенной интеллектуальной системы управления в виде нейронечеткой сети; 3) постановка задачи управления заданным прижимом инструмента; 4) обоснование входных и выходных переменных задачи (фаззификация); 5) разработка базы правил нечеткой системы; 6) выполнение нечетких выводов для промежуточных и заключительного слоев сети в среде Matlab; 7) реализация модели интеллектуальной системы в среде Matlab+Simulink. Результатами работы является модель интеллектуальной системы управления короснимателем и ее программная реализация в среде Simulink для использования в практике проектирования роторных окорочных станков. The problem of improving the rotary debarkers, which are used without fail in all timber processing technologies of the timber industry countries, is considered. Despite the sufficiently developed design, nevertheless, the main technological operations of the machine are not equipped with modern adaptive automatic control systems (ACS). Previously, developments based on a pneumatic hydraulic drive were proposed using automatic control based on fuzzy logic. In the proposed automatic control system, the stabilization of a given pressing force of the cutting tool – the debarker is performed. However, the given force depends on a number of technological parameters, which are characterized by uncertainty, and the problem of controlling the given clamping of the tool remains unsolved. Thus, the goal of the research was determined, which was to create an intelligent system for automatic control of a given pressure of the debarker staple lifter. The following tasks were solved: 1) development of an intelligent control scheme for the debarker; 2) development of a diagram of a generalized intelligent control system in the form of a neuro-fuzzy network; 3) setting the task of controlling the given clamping of the tool; 4) justification of the input and output variables of the problem (fuzzification); 5) development of a fuzzy system rule base; 6) execution of fuzzy conclusions for intermediate and final layers of the network in the Matlab environment; 7) implementation of the model of an intelligent system in the Matlab + Simulink environment. The results of the work are a model of an intelligent control system for the debarker and its software implementation in the Simulink environment for use in the practice of designing rotary debarkers.

2020 ◽  
pp. 38-54
Author(s):  
◽  
N. Zaiets ◽  
V. Shtepa ◽  
N. Gritsenko ◽  
◽  
...  

Now there is a need to improve the automated control system by creating an intelligent system that will comprehensively assess the technical and economic performance of the technological complex of multi-range production and form a plan for energy efficient management of technological equipment. To achieve this goal, it is advisable to use decision support systems based on the use of algorithms, procedures, methods of cognitive approach based on neural networks The purpose of the study is to develop information support for an intelligent dairy management system to ensure energy efficient use of technological equipment. The article presents the development of an intelligent control system for high-quality assortment production using an intelligent system for energy-efficient control of technological equipment, which quickly and efficiently in real time makes an optimal decision on the management of a dairy production complex and contributes to improving the efficiency of its functioning. The structure of the database of the intelligent system has been formed and the stages of creating an intelligent control system for the energy efficient use of technological equipment, which takes into account the peculiarities of the functioning of individual units of the technological complex, have been determined. The calculation of energy savings in the manufacture of certain types of products for a week was carried out to compare the energy efficiency of the enterprise according to the scenario set by the intelligent system and in normal mode.


2021 ◽  
Author(s):  
A.A. Chursin

The construction of an intelligent control system for the production of science intensive products is considered. An economic and mathematical model of the functioning of the system at all stages of the life cycle of science intensive products is proposed, the informational principle of making economic decisions under conditions of uncertainty is formulated. Keywords: science intensive products, high-tech production, intelligent system. [email protected]


2013 ◽  
Vol 670 ◽  
pp. 10-21
Author(s):  
H.G. Zhang ◽  
Q.X. Hu ◽  
Y.Y. Liu ◽  
D.L. Liu ◽  
J. Huang ◽  
...  

Based on craft features analysis of vacuum casting, this paper concluded that the automation level and control precision of control system are key influencing factors for products quality of vacuum casting. So the purpose of this paper is to resolve these disadvantages of existing control system of vacuum casting equipments. This paper designed a new full automatic intelligent control system which adopts two-level distributed structure. The system is consisted of motor control subsystem, vacuum monitoring and control subsystem, and bubbles detecting and eliminating subsystem. According to the function requirement of control system, this paper described selection and configuration of hardware and function implement of software in detail. Finally, this paper designed and realized a new automatic detecting and eliminating method of bubbles based on vision sensor technology, and presented an intelligent controller model based on Wavelet Neural Network (WNN) for motors. The experimental prototype of vacuum casting has been developed and a large number of experiments have been carrying on. These new controlling algorithms have being tested. The control system integrates vision sensor, intelligent control, microcomputer interface and imaging processing technologies, so it possess high precision, efficiency and flexibility and has a good market application prospect and high economic value. It will be breakthrough for precise rapid tooling.


2013 ◽  
Vol 336-338 ◽  
pp. 1241-1244
Author(s):  
Shu Wei Huang ◽  
Dan Li Wen

The hydraulic drive valve intelligent control system was discussed. Two grades, the field cell and the remote control cell, were used in the distributed control system. The communications of the system were implemented by Controller Area Network (CAN). At the first grade, single-chip microcomputer (SCM) acted as the control chip. The sampling pressure signal in pipeline was transformed into the output digital control signal by the controller. The digital direction valve acted as a transformation unit which converts the electric signal to mechanical action in the hydraulic circuit. The control process was realized by the digital signal directly acting on the step electrical motor. At the second grade, the industrial-control computer with a favorable man-machine conversation interface was used to realize monitor function.


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