scholarly journals Analysis approaches to construction management systems managed artillery (reactive) projectile of small caliber

Author(s):  
O. V. Kniazkyi ◽  
S. Y. Mosiichuk ◽  
T. M. Shevtsova

The analysis of possible approaches to the construction of control systems for guided projectile of caliber 120(122)-mm is carried out. Autonomous, non-autonomous and combined control systems are considered.

Author(s):  
Sadegh Vaez-Zadeh

In this chapter, three control methods recently developed for or applied to electric motors in general and to permanent magnet synchronous (PMS) motors, in particular, are presented. The methods include model predictive control (MPC), deadbeat control (DBC), and combined vector and direct torque control (CC). The fundamental principles of the methods are explained, the machine models appropriate to the methods are derived, and the control systems are explained. The PMS motor performances under the control systems are also investigated. It is elaborated that MPC is capable of controlling the motor under an optimal performance according to a defined objective function. DBC, on the other hand, provides a very fast response in a single operating cycle. Finally, combined control produces motor dynamics faster than one under VC, with a smoother performance than the one under DTC.


Author(s):  
Т.С. Аббасова

Проанализированы типовые устройства вычислительной техники для реализации облачных систем управления на основе оборудования центров обработки данных. Поставлена задача сформулировать виды контроля исследуемых устройств; найти расчетные соотношения для определения показателей, характеризующих виды контроля; а также определить средства технического мониторинга, контролирующие облачные системы управления. Проанализированы характеристики широко применяющегося в облачных системах управления сервиса резервного копирования и восстановления данных. Разработаны оценки для контроля параметров облачных систем управления. Typical computing devices for implementing cloud-based control systems based on data center equipment are analyzed. The task is to formulate the types of control of the studied devices; find the calculated ratio to determine indicators characterizing the types of control; and identify technical monitoring tools that control cloud-based management systems. The characteristics of the backup and data recovery service widely used in cloud management systems are analyzed. Estimates have been developed to control the parameters of cloud-based management systems.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rudy M. Harahap

Purpose This study aims to comprehensively examine the integration of organisational- and individual-level performance management systems (PMSs) in the context of public sector organisations (PSOs) of developing countries (DCs), by investigating the elements of PMSs in the studied organisation. Design/methodology/approach A case study in a large PSO of a developing country was conducted. The design of the study and the data analysis drew on Ferreira and Otley’s PMSs framework. Data were captured from electronic and printed document archives, online written interviews with participants and face-to-face interviews. The data then were triangulated and analysed thematically. Findings The study reveals a recursive relationship between culture and PMSs, and identifies conflicting regulatory requirements and a lack of information technology capacity led to the development of dual, loosely coupled PMSs in the studied organisation. Research limitations/implications The findings may not be generalisable beyond a large, PSO in a developing country; the study did not consider the linkages between the integration of organisational- and individual-level PMSs and other PMSs; the study looked at only two notions of culture; and the study asked participants to recall past events, so was retrospective in its design. Practical implications The findings illustrate the need for public sector managers and key policymakers to use both formal and informal control systems, together with technical and social integration mechanisms, as well as management accounting (MA) and human resources management (HRM) control approaches, when attempting to integrate organisational- and individual-level PMSs in the PSOs of DCs. Social implications Future studies may usefully investigate the integration of organisational- and individual-level PMSs in different contexts, consider culture and contextual factors when investigating the integration of organisational- and individual-level PMSs in different contexts, examine whether national culture also substantially impacts PMSs in other countries and attempt to inform the MA literature by drawing on HRM theory and research on individual-level PMSs. Such studies may help to address the gap between PMS theory and practice and better allow MA researchers to contribute to practice. Originality/value The study contributes to management control systems (MCSs) and PMSs literature by extending our understandings in the relationship between accounting and non-accounting controls, the contextual factors that affect PMSs and highlighting the importance of considering cultural context when integrating PMSs in the PSOs of DCs.


2020 ◽  
Vol 44 (4) ◽  
Author(s):  
M. O. Omelchenko ◽  

The article examines the requirements for the functional purpose of access control and management systems (ACMS), the functional composition of ACMS and general requirements for it, integration and network construction of ACMS, burglar alarm systems, fire alarm systems, access control and management systems, ACMS capabilities, control systems access control, video surveillance systems.


2010 ◽  
Vol 13 (2) ◽  
pp. 29-36
Author(s):  
Anh Huy Quyen ◽  
Anh Viet Truong ◽  
Nhung Thi Hong Le

Control voltage in power system is always necessary to guarantee power quality and reduce power loss of productivity. This paper presents the construction of voltage control fuzzy system in transmission network with variety control devices, used fuzzy Mamdani controllers. Fuzzy controllers associated and combined control actives to create an unified fuzzy control systems capable of automatically controlling the voltage at the nodes in power system by retaining nodes voltage in a while desired values with the satisfying restrictive conditions. Through the investigative results on 30bus IEEE standard network demonstrated the effectiveness of the proposed fuzzy algorithm compared with conventional techniques sensitive tree.


2018 ◽  
Vol 8 (1) ◽  
pp. 48-56
Author(s):  
S. Bobrikov ◽  
◽  
E. Pichugin ◽  
A. Kisel ◽  
◽  
...  

2021 ◽  
Vol 61 ◽  
pp. 29-37
Author(s):  
Linas Aidokas ◽  
Laimutis Adolfas Telksnys

The stochastic control system is investigated.  The article solves the problem of human-robot humanoid communication.  The problem arises in the development of human behavior formation management systems. They describe human behavior in terms of probabilistic characteristics. Such control systems are stochastic. The management system of human behavior formation and its functioning is described quality assessment. The problem is solved by simulation modeling. The software implementing the method is described. The results of experimental research are presented.


2021 ◽  
Vol 37 (2) ◽  
pp. 9-15
Author(s):  
O. Levchenko ◽  
S. Kashtanov

Purpose: Analysis and determination of the main modern international safety requirements that must be met in the design, development and operation of industrial equipment management systems, as well as confirmation of the need for further improvement of the domestic regulatory framework in this area.Performed analysis of the requirements of modern international standards (IEC 62061, IEC 61508) on the safety of electrical, electronic and programmable electronic control systems for industrial equipment and the existing sequence of protection against hazards; the main features of the architecture of such control systems are identified and algorithms for determining the main indicators of their functional safety (PL; SIL PL; PFHd) and an algorithm for ensuring the required level of security depending on the parameters of existing risks are provided. The analysis of the features of functioning and application of modern international safety standards, which must be observed in the design, development and operation of industrial equipment management systems convincingly confirms the relevance and need for further improvement of domestic regulations in this area. The main parameters (indicators) of safety of functioning of electric, electronic and programmable electronic control systems of industrial equipment are determined. Relevant recommendations are provided on the main aspects of their application and implementation according to IEC 62061 and IEC 61508.The development and implementation of relevant national standards based on IEC 62061 and IEC 61508 should accelerate the further development of technical progress in the field of industrial safety. Confirmed relevance and importance of the need to develop relevant national standards based on IEC 62061 and IEC 61508.


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