scholarly journals Identification of rolling stock in railway transport management

2018 ◽  
Vol 19 (6) ◽  
pp. 176-179
Author(s):  
Jarosław Moczarski
Keyword(s):  
Transport Process ◽  
Moving Objects ◽  
Computer Application ◽  
Rolling Stock ◽  
Programming Environment ◽  
Railway Transport ◽  
Analysis Techniques ◽  
Matlab Programming ◽  
Transport Management ◽  
Subsequent Identification

An important factor improving the safety of the railway transport process is the automatic recognition of the rolling stock and the transported loads. Using modern data acquisition and analysis techniques allows to identify moving objects by assessing their shape and size. For the creation of digital models of the studied objects and their subsequent identification there was developed a computer application working in Matlab programming environment. The application use the functions of designing, implementing, visualizing and simulating neural networks. The configuration of the test stand allows for carrying out experiments using analog and digital sensors.

scholarly journals Typologization of models of rolling stock elements in the process of their identification

2019 ◽  
Vol 20 (1-2) ◽  
pp. 109-112
Author(s):  
Jarosław Moczarski
Keyword(s):  
Computer Application ◽  
Rolling Stock ◽  
Programming Environment ◽  
Laser Measurement ◽  
Digital Models ◽  
Object Shape ◽  
Laser Sensors ◽  
The Creation ◽  
Matlab Programming ◽  
Subsequent Identification

Paper discussed the problem of rolling stock elements identification and recognition of loads. For evaluation of the object shape and position, in the tests are used laser sensors such as mid-range distance sensors, automation light grids and 2D laser measurement sensors. For the creation of digital models of the studied objects and their subsequent identification there was developed a computer application working in Matlab programming environment. Typologization of models of rolling stock elements accelerate calculations and increase the effectiveness of the conducted identification.

Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov
Keyword(s):  
Rolling Stock ◽  
Railway Transport ◽  
Transport Services ◽  
Railway Infrastructure ◽  
External Conditions ◽  
The Republic ◽  
Railway Operation ◽  
Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

scholarly journals Determining the Rational Motion Intensity of Train Traffic Flows on the Railway Corridors with Account for Balance of Expenses on Traction Resources and Cargo Owners

2019 ◽  
Vol 20 (3) ◽  
pp. 215-228 ◽  
Author(s):  
Tetiana Butko ◽  
Mykhailo Muzykin ◽  
Andrii Prokhorchenko ◽  
Halyna Nesterenko ◽  
Halyna Prokhorchenko
Keyword(s):  
Genetic Algorithm ◽  
Mathematical Model ◽  
Reference Station ◽  
Limited Resources ◽  
Rolling Stock ◽  
Traffic Flows ◽  
Railway Transport ◽  
Real Coded Genetic Algorithm ◽  
Cargo Transportation ◽  
Destination Point

Abstract The article proposes a method for determining the rational motion intensity of specific train traffic flows on railway transport corridors with account for balance of expenses on traction resources and cargo owners. A mathematical model based on stochastic optimization is developed, which allows to optimize, in the conditions of risks, the interval between trailing trains on the railway lines taking into account the limited resources of the traction rolling stock, the capacity of the stations and freight fronts at the cargo destination point. Solving this mathematical model allows to find a balance between the expenses for movement of train traffic flows from different railway lines to their terminal reference station and the expenses of a consignee, subject to the limitations of the technological logistics chain in cargo transportation. For the solution of this mathematical model, a Real-coded Genetic Algorithm (RGA) was used.

scholarly journals Polynomial approximation of dynamic signals of single platform railway scales

2021 ◽  
pp. 44-52
Author(s):  
Illia Kolysnychenko ◽  
Victor Tkachov
Keyword(s):  
Experimental Data ◽  
Polynomial Approximation ◽  
Intelligent Systems ◽  
Moving Objects ◽  
Linear Equations ◽  
Real Data ◽  
Travel Speed ◽  
Rolling Stock ◽  
Identification System ◽  
Approximation Process

Purpose. Obtaining an approximating function (or a system of approximating equations), which, with a minimum error, will make approximations to the available data on a train of railway objects through 1 platform scales. Methodology. To solve this problem, numerical methods are used, namely, the approximation by polynomial functions of the nth order. The experimental data on the basis of which the experiments were carried out were obtained from the weighing and identification system of wagon in motion on a single platform scale. The approximation process is automated using a program written in the Python programming language in which the polyPit and polyid functions of the numPy library are used to obtain the polynomial coefficients. Findings. Due to the use of polynomial approximation in data processing from tensometric railroad weighing systems, it was possible to obtain a system of linear equations that, with minimal error, restored the experimental data that were obtained from the existing system of the Severny GOK: Metinvest enterprise. When normalizing the readings of the sensors from conventional units, obtained from the summing box to the range of values [0; 1] it became possible, in percentage terms, to describe a railway object. This makes it possible to avoid the dependence of the final results on the travel speed of the carriage or locomotive, which leads to an increase in the accuracy of the identification of cars in the rolling stock due to the use of the percentage of the axles staying on the weighing platform (approach / exit). It became possible to determine the type of carriage with the same number of axles, but different characteristics of the center space and the base of the rolling stock. Originality.  The novelty is to obtain a general method of approximation of experimental data of the passage of wagons through a single-platform scales, which can be used to train intelligent systems and generate close to real data of the passage of a car (due to the imposition of noise, etc.). Practical value.  Improving the accuracy and speed of the carriage identification as a whole, which reduces the plant downtime, contributes to an increase in the number of weighed and identified moving objects, as well as the ability to identify the type of carriage with the same number of axles in the train. The methods presented in the work can be used both for identification and for tasks, the end result of which is the classification of input data (neural networks, etc.).

scholarly journals Pengaruh Gaya Kepemimpinan Dan Budaya Organisasi Terhadap Disiplin Kerja Pada PT. Telkom Indonesia Cabang Tenggarong

2021 ◽  
Vol 21 (1) ◽  
pp. 48-66
Author(s):  
Erwinsyah Erwinsyah ◽  
Syahrudin Syahrudin ◽  
M. Dicky Efrizal
Keyword(s):  
Organizational Culture ◽  
Leadership Style ◽  
Analytical Tool ◽  
Computer Application ◽  
Test Analysis ◽  
Analysis Techniques ◽  
Independent Variables ◽  
Simultaneous Influence ◽  
Dominant Influence ◽  
Two Independent Variables

Abstract:                  This study aims to determine how much influence the leadership style and organizational culture have on work discipline among employees of PT. Telkom Indonesia Tenggarong Branch. The population as well as the sample is 49 people. The analytical tool used is multiple linear regression with two independent variables, namely leadership style and organizational culture. Meanwhile, one dependent variable is work discipline. Data analysis techniques used the help of a computer application program SPSS 24. The results showed the value of the F test of 41.583, thus it can be seen that the variable leadership style and organizational culture have a simultaneous influence on work discipline at PT. Telkom Indonesia Tenggarong Branch. From the results of the t test analysis, it is known that the variable of leadership style has a partial effect on work discipline, the results of t count are 7.975> 2.012 (t table), while the variables of organizational culture have no partial effect on work discipline with t count 0.383 <2.012 ( t table). The results of the study of the variable leadership style affect work discipline. This can be compared from the variable value of leadership style (X1) 0.802 and organizational culture (X2) 0.389. Based on the results of the calculation, it can be concluded that the simultaneous influence hypothesis and leadership style variables have the most dominant influence on work discipline at PT. The Tenggarong Branch of Telkom Indonesia has been proven to be true.   Keywords: Leadership Style, Organizational Culture, Work Discipline  

scholarly journals Visualization and Simulation in Scheduling

10.14311/977 ◽  
2008 ◽  
Vol 48 (3) ◽  
Author(s):  
R. Čapek
Keyword(s):  
Signal Processing ◽  
Virtual Reality ◽  
Digital Signal Processing ◽  
Production Line ◽  
Digital Signal ◽  
Programming Environment ◽  
Gantt Chart ◽  
Time Scheduling ◽  
Visualization And Simulation ◽  
Matlab Programming

This paper deals with the representation of scheduling results and it introduces a new tool for visualization and simulation in time scheduling called VISIS. The purpose of this tool is to provide an environment for visualization, e.g. in production line scheduling. The simulation also proposes a way to simulate the influence of a schedule on a user defined system, e.g. for designing filters in digital signal processing. VISIS arises from representing scheduling results using the well-known Gantt chart. The application is implemented in the Matlab programming environment using Simulink and the Virtual Reality toolbox. 

scholarly journals Digitization in Rail Transport

2020 ◽  
Vol 64 (188) ◽  
pp. 137-148
Author(s):  
Janusz Poliński ◽  
Krzysztof Ochociński
Keyword(s):  
Customer Service ◽  
Traffic Management ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Traffic ◽  
Railway Industry ◽  
Operations And Maintenance ◽  
Trained Staff

Digital transformation in the railway industry is an important element in the development of railways and should benefit commuters, railway operators, infrastructure managers and rolling stock manufacturers. The process of digitization applies to two domains, i.e. customer service and railway companies’ operation. This paper aims to present previous eff orts regarding the use of digital technologies in customer relations and in the field of operations and maintenance, which translates into the quality of services provided. This paper highlights important concepts of this domain with respect to passenger and freight transport, infrastructure, railway rolling stock and railway traffic management. It is also argued that the process of digitization needs properly trained staff . Examples of innovative initiatives of Polish and European railway companies are covered. Keywords: railway transport, digitization, digitization of the railways

scholarly journals Application of lidars in the monitoring system of hydrophysical disturbances from moving objects

2021 ◽  
Vol 3 (397) ◽  
pp. 127-132
Author(s):  
V. Polenin ◽  
Keyword(s):  
Monitoring System ◽  
Moving Objects ◽  
Scientific Discovery ◽  
Physical Phenomenon ◽  
Problem Formulation ◽  
Programming System ◽  
Navigation Problem ◽  
Correct Conclusion ◽  
Scientific Results ◽  
Matlab Programming

Object and purpose of research. The object of this research study is a physical phenomenon of lidar observation of hydrophysical disturbances from an object moving underwater confirmed by the scientific discovery registered with Russian Academy of Natural Sciences (RANS). The purpose is to briefly present the phenomenon essence and to validate the feasibility of underwater monitoring system involving lidars. Materials and methods. The work materials is the phenomenon description and publications confirming its reliability. The feasibility of underwater monitoring system employing lidars is validated by model representation of this system as a group of distributed fixed lidars, which record time instants when a moving underwater object is passing by. The navigation task of locating its coordinates and parameters of motion is solved. Main results. The results demonstrate exact solutions to the problem implemented in MATLAB programming system, which confirms that the model is adequate and its software implementation is correct. Conclusion. The purpose of the work to examine the feasibility of lidar underwater monitoring system is achieved. The new scientific results are the problem formulation and the method of solving a navigation problem to find coordinates and parameters of motion from lidar-detected instants of hydrophysical disturbances. A hypothetical lidar-based monitoring system, if verified experimentally that lidars are sufficiently long-range instruments, is a promising idea.

scholarly journals Consideration of quality change of railway transport maintenance operations in managing costs of goods transport

2018 ◽  
Vol 239 ◽  
pp. 03005
Author(s):  
Lidia Shkurina ◽  
Eugenia Maskaeva ◽  
Stanislav Maskaev
Keyword(s):  
Cost Management ◽  
Rolling Stock ◽  
Market Demand ◽  
Railway Transport ◽  
Quality Change ◽  
The Cost ◽  
The Impact ◽  
Financial Result ◽  
Freight Market

the authors reviewed the quality of operational work of railway transport in the cost management system, presented methods for assessing the impact of the quality of rolling stock on the current costs of transportation activities, considered the issues of the impact of the quality of operational work on the formation of freight market demand and of financial result of the transport company - the owner of infrastructure and traction rolling stock, represented methods of assessing financial and economic efficiency of improving the quality of operational work for the company - a participant of the freight market.

scholarly journals The Application of Polymer Inclusion Membranes Based on CTA with 1-alkylimidazole for the Separation of Zinc(II) and Manganese(II) Ions from Aqueous Solutions

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 242 ◽  
Author(s):  
Elzbieta Radzyminska-Lenarcik ◽  
Malgorzata Ulewicz
Keyword(s):  
Transport Process ◽  
Polymer Membranes ◽  
Cellulose Triacetate ◽  
Force Microscopy ◽  
Analysis Techniques ◽  
Membrane Morphology ◽  
Atomic Force ◽  
Feed Phase ◽  
Thermal Analysis Techniques ◽  
Scanning Electron

Polymer cellulose triacetate membranes doped with 1-alkylimidazole as fixed carriers were applied for the investigation of the facilitated transport of Zn(II) and Mn(II) ions from an aqueous sulphate feed phase (cM = 0.001 mol/dm3). For the polymer inclusion membranes (PIMs) doped with 1-alkylimidazole (alkyl – from hexyl up to decyl), the following patterns of transport selectivity were found: Zn(II) > Mn(II). The highest initial flux of Zn(II) ions (2.65 µmol/m2·s) was found for PIMs doped with 1-decyl-imidazole, whereas the best Zn(II)/Mn(II) selectivity coefficients equal to 19.7 were found for 1-hexyl-imidazole. Permeability coefficients for Zn(II) and Mn(II) ions transported across PIMs increase with an increase in the pKa values of 1-alkylimidazole. The polymer membranes of cellulose triacetate-o-NPPE with 1-alkylimidazole were characterised by scanning electron microscopy, non-contact atomic force microscopy and thermal analysis techniques. The influence of membrane morphology on the Zn(II) and Mn(II) transport process was discussed.

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