scholarly journals Dominance relations approach to design and control configuration of robotic groups

2021 ◽  
Vol 190 ◽  
pp. 622-630
Author(s):  
S.Yu. Misyurin ◽  
A.P. Nelyubin
Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4930
Author(s):  
Francisco Elvis Carvalho Souza ◽  
Werbet Silva ◽  
Andrés Ortiz Salazar ◽  
José Paiva ◽  
Diego Moura ◽  
...  

In order to reduce the costs of implementing the radial position control system of a three-phase bearingless machine with split winding, this article proposes a driving method that uses only two phases of the system instead of the three-phase traditional one. It reduces from six to four the number of inverter legs, drivers, sensors, and current controllers necessary to drive and control the system. To justify the proposal, this new power and control configuration was applied to a 250 W machine controlled by a digital signal processor (DSP). The results obtained demonstrated that it is possible to carry out the radial position control through two phases, without loss of performance in relation to the conventional three-phase drive and control system.


2011 ◽  
Vol 133 (07) ◽  
pp. 53-54
Author(s):  
John D. Olivas

This article presents views of John D. Olivas on achievements of humans in space. Olivas recalls the STS-117 mission in which various problems and challenges were systematically overcome by a team of managers, engineers, and technicians as well as the on-orbit crew to make the mission seem outwardly flawless. The mission encountered a shutdown of the main command and control computer system of the space station, loss of a power channel, headache-inducing carbon dioxide levels, compromised Shuttle thermal protection, unexpected orbital attitude control configuration, and reconfiguring a solar array damaged by the wear and tear of the environment that is space. Despite these challenges, hundreds of humans worked hand in hand to perform whatever heroic feat was necessary to achieve success. Olivas also thinks that despite all these achievements, there remains much more for humans to learn and much more to do.


MIS Quarterly ◽  
2016 ◽  
Vol 40 (3) ◽  
pp. 741-774 ◽  
Author(s):  
Martin Wiener ◽  
◽  
Magnus Mähring ◽  
Ulrich Remus ◽  
Carol Saunders ◽  
...  

Mechatronics ◽  
2019 ◽  
Vol 63 ◽  
pp. 102275 ◽  
Author(s):  
Michiel Haemers ◽  
Stijn Derammelaere ◽  
Albert Rosich ◽  
Clara M. Ionescu ◽  
Kurt Stockman

Author(s):  
Ilan Rusnak

The issue of the organization of control and feedback can be subdivided into several subjects: i) Selection of performance objectives; ii) The control algorithms; iii) Selection of measured and manipulated variables; and iv) Feedback organization. In previous publication [1] partial survey of the issues above and a terminology for feedback and control organization has been presented, that is, not all issues and not all relevant disciplines have been covered. Namely, motion control and servo-regulator applications have been covered; however, aircraft control, missile autopilots and process control have been barely covered. The issues of: (i) Selection of measured variables (location of sensors) and manipulated variables (location of actuators) called as well as Input-Output Selection (IO); (ii) Control Structure Design (CSD); and (iii) Control Configuration selection (CC); had not been covered and are presented here. These issues are strictly proper sub-issues of the Control and Feedback organization problem. This paper extends the survey to additional disciplines and subjects. Thus this paper can be considered as part II and supplement of [1]. Using the definitions the problem of Control and Feedback Organization (CFO) is defined over the set theory within the well-established functional analysis and optimal control theories. The optimal control-feedback organization problem and the optimal simultaneous design of the system and feedback configuration problem are presented as open issues. This demonstrates the usefulness of the existence of a proper terminology and theory of the control-feedback organization problem and its extension and connection to design of sensors and actuators location. As an example the architecture generating property of the LQR metric is used to derive advanced high performance architecture for motion control applications.


2013 ◽  
Vol 336-338 ◽  
pp. 1256-1261
Author(s):  
Ying Zhang ◽  
Yong Zheng ◽  
Zhong Xue ◽  
Shi Liang Zhang

Based on the temperature control characteristics of dry anaerobic fermentation, this system use Siemens PLC and force control configuration software designed a realtime monitoring and control system about the temperature of fermentation. Briefly introduces the hardware structure design, the software design method, the temperature core program on gathering and processing. This system can realize the near manual and automatic operation, remote real-time monitoring about temperature. It has superiority on higher reliability, higher accuracy, stronger real-time property, easier operate.


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