scholarly journals MODERNIZATION OF THE CONTROL SYSTEM OF THE DIESEL FUEL MIXING UNIT

2021 ◽  
Vol 3 (65) ◽  
pp. 26-32
Author(s):  
Aleksandr Y. Fakeev ◽  
◽  
Natalya V. Lezhneva ◽  
Keyword(s):  
Control System ◽  
Diesel Fuel ◽  
Automated System ◽  
Antiwear Additives ◽  
Distributed Control System ◽  
Control Loops ◽  
Kerosene Fraction ◽  
Functional Blocks ◽  
Fuel Mixing ◽  
Qualitative Characteristics

Based on the analysis of the existing distributed control system of the diesel fuel mixing unit, the imperfection of the control loops of the kerosene fraction, the depressant-dispersant, cetane-increasing and antiwear additives were revealed due to the fact that they do not take into account the quality indicators of commercial diesel fuel if there are in-line analyzers of its characteristics in the automated system. It leads to the need for the operator to participate in the control of the flow rate of these flows. In this regard, the unit was simulated on the basis of experimental and statistical methods, based on the results of which a virtual analyzer of the lubricity of commercial diesel fuel was developed. Proposals have been formulated for the modernization of control loops with the consumption of depressant-dispersant and cetane-increasing additives, kerosene fraction, adjusted for the qualitative characteristics of commercial diesel fuel, as well as the consumption of antiwear additives, corrected according to the results of the readings of the developed virtual analyzer of the lubricity of fuel. Programs for the implementation of modernized control loops in the language of functional blocks of the Centum VP controller have been developed.

Жизнеобеспечение экипажа пилотируемого космического объекта, проблемы управления

2019 ◽  
pp. 109-120
Author(s):  
Boris F. ZARETSKIY ◽  
Arkadiy S. GUZENBERG ◽  
Igor A. SHANGIN
Keyword(s):  
Control System ◽  
Life Support ◽  
Support Systems ◽  
Space Missions ◽  
Automated System ◽  
Deep Space ◽  
Automated Control ◽  
Life Support Systems ◽  
Long Duration ◽  
Space Life Support

Life support for first manned spaceflights was based on supplies of consumables. Crew life support systems based on supplies of water and oxygen, in spite of their simplicity, are extremely inefficient in orbital space missions and are unfeasible in deep space missions because of mass and volume constraints. Therefore, there are currently developed and are to be used on space stations the life support systems that are based on chemical and physical regeneration of water and oxygen extracted from human waste. In view of further advances in long-duration orbital stations, and the prospects of establishment of planetary outposts and deep space exploration, the problem of constructing an automated system for controlling a suite of regenerative LSS becomes urgent. The complexity of solving the problem of constructing an efficient control system in this case owes to the existence of a large number of effectiveness criteria. The paper proposes a system of consolidated global efficiency criteria, which allows to break up this problem into a series of sub-problems of optimization in order to solve this problem. The proposed criteria are longevity, cost, comfort. The paper presents a series of specific examples of using the proposed principles with necessary generalizations. Key words: space life support systems, atmosphere revitalization equipment, automated control system, global generalized efficiency criteria, longevity, cost, comfort.

Capture Strategy Based on a Distributed Control System for a Large-scale Space End-Effector

ROBOT ◽  
2011 ◽  
Vol 33 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Dangyang JIE ◽  
Fenglei NI ◽  
Yisong TAN ◽  
Hong LIU ◽  
Hegao CAI
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Large Scale ◽  
Scale Space ◽  
Distributed Control System ◽  
End Effector

scholarly journals Structure of distributed control system in Seimei telescope

2021 ◽  
pp. 1-8
Author(s):  
Ichiro Jikuya ◽  
Daichi Uchida ◽  
Masaru Kino ◽  
Mikio Kurita ◽  
Katsuhiko Yamada
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Distributed Control System

Design and implementation of C-MEX S-functions in an Android-based networked control system laboratory

2021 ◽  
pp. 014233122110268
Author(s):  
Lei Cao ◽  
Guo-Ping Liu ◽  
Wenshan Hu ◽  
Jahan Zaib Bhatti
Keyword(s):  
Control System ◽  
Networked Control System ◽  
Networked Control ◽  
Control Algorithms ◽  
Basic Block ◽  
Air Bearing ◽  
Experiment Validation ◽  
Functional Blocks ◽  
New Feature ◽  
Three Degree Of Freedom

The Android-based networked control system laboratory (NCSLab) is a remote control laboratory that adopts an extensible architecture, mainly including Android mobile devices, MATLAB servers, controllers and test rigs. In order to conduct various simulations and experiments more effectively in NCSLab, the first key issue that needs to be solved is to enable users to design their own control algorithms or functional blocks on the Android client, rather than just using the basic block libraries provided by the system. So, this paper proposes and implements a scheme for Android-based compilation of C-MEX S-functions. With this new feature, users can design personalized algorithm according to their requirements in the form of S-functions, which can be called and executed after being compiled by MATLAB server. Finally, through the experiment validation of the three-degree-of-freedom air bearing spacecraft platform, it is proved that the method of Android-based C-MEX S-functions is reliable and efficient, and this scheme well enhances the functionality and mobility of Android-based NCSLab.

Fibre Optic Highway Based Distributed Control System

1993 ◽  
Vol 22 (2) ◽  
pp. 57-59
Author(s):  
S. C. Gupta ◽  
Atul Agarwal ◽  
K. N. Singh
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Distributed Control System ◽  
Fibre Optic

scholarly journals Towards the Development of an Automatic UAV-Based Indoor Environmental Monitoring System: Distributed Off-Board Control System for a Micro Aerial Vehicle

2021 ◽  
Vol 11 (5) ◽  
pp. 2347 ◽  
Author(s):  
Jorge Solis ◽  
Christoffer Karlsson ◽  
Simon Johansson ◽  
Kristoffer Richardsson
Keyword(s):  
Control System ◽  
Environmental Monitoring ◽  
Monitoring System ◽  
Target Location ◽  
Flight Time ◽  
Distributed Control System ◽  
Micro Aerial Vehicle ◽  
Environmental Monitoring System ◽  
Rapid Changes ◽  
Aerial Vehicle

This research aims to develop an automatic unmanned aerial vehicle (UAV)-based indoor environmental monitoring system for the acquisition of data at a very fine scale to detect rapid changes in environmental features of plants growing in greenhouses. Due to the complexity of the proposed research, in this paper we proposed an off-board distributed control system based on visual input for a micro aerial vehicle (MAV) able to hover, navigate, and fly to a desired target location without considerably affecting the effective flight time. Based on the experimental results, the MAV was able to land on the desired location within a radius of about 10 cm from the center point of the landing pad, with a reduction in the effective flight time of about 28%.

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