Modeling of vehicle movement in computer information-control systems

Q3 Computer Science
V. Moiseenko, Оleksandra Golovko, V. Butenko, Karyna Trubchaninova
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引用次数: 2

Abstract

The subject of the article is the processes of synthesis of a mathematical model of control objects functioning in computer information-control systems of critical purpose for the needs of high-speed railway transport. The main emphasis is on modeling the movement of a passenger train in the high-speed system of Ukrzaliznytsia. The aim is to study the process of regulating the speed of railway vehicles under conditions of uncertainty in the primary information of microprocessor information-control systems of railway transport. Tasks: determination of the criterion of the safety of railway vehicle auto control; obtain a mathematical model of train movement under conditions of uncertainty; check the adequacy of the model. The method used is the mathematical apparatus of discrete models. The following results have been obtained. The mathematical model of train movement developed in this work includes not only information on train position, reference point, direction, and speed of the vehicle but also a variable control indicator to reflect the process of railway traffic adequately. The study shows that, based on the synthesized model, it is possible to use the so-called fuzzy distance between adjacent trains. This approach improves the accuracy of determining the critical distance between trains, the time required to eliminate the risk of collision, the start time of braking, and braking time considering the angle of inclination of the track, as well as the distance of the braking distance. The necessity to determine the control indicator, its value for many points of time, while there is a reduction in speed for the safe movement of trains. Based on the proposed mathematical model, a computer simulation of the process was performed to determine the required time reserve for the train driver to respond to changes in the speed of the previous train, as well as speed ranges that require immediate emergency action. Conclusions. The scientific novelty of the obtained results is the development of a mathematical model of the behavior of mobile units in computer systems for critical use for the needs of railway transport in the presence of failures in the primary information from sensors that record motion parameters. The behavior of the control system at different values of train speed and changes in the value of the interval of the accompanying journey is studied. The theory of traction calculations in computer control systems for mobile units has been further developed. The obtained scientific results will be used in the development of an application program for many critical computer systems for railway.
计算机信息控制系统中车辆运动的建模
本文的主题是高速铁路运输需要的关键用途计算机信息控制系统中控制对象的数学模型的综合过程。主要的重点是对乌克兰高速系统中客运列车的运动进行建模。目的是研究铁路运输微处理机信息控制系统主要信息不确定条件下的轨道车辆速度调节过程。任务:确定轨道车辆自动控制安全标准;得到不确定条件下列车运动的数学模型;检查模型是否足够。所使用的方法是离散模型的数学装置。得到了以下结果:本文所建立的列车运动数学模型不仅包含了列车位置、参考点、方向和车速等信息,而且还包含了一个能充分反映铁路交通过程的可变控制指标。研究表明,在综合模型的基础上,可以使用所谓的模糊相邻列车之间的距离。该方法提高了确定列车间临界距离、消除碰撞风险所需时间、开始制动时间、考虑轨道倾斜角的制动时间以及制动距离的准确性。有必要确定控制指标,它的值在许多时间点,而有降低速度的列车安全运行。基于所提出的数学模型,对该过程进行了计算机模拟,以确定列车驾驶员响应前一列车速度变化所需的时间储备,以及需要立即采取紧急行动的速度范围。结论。所获得结果的科学新颖性在于开发了计算机系统中移动单元行为的数学模型,用于铁路运输在记录运动参数的传感器的主要信息存在故障的情况下的关键用途。研究了不同列车速度值和伴随行程间隔值变化时控制系统的行为。移动单元计算机控制系统中的牵引计算理论得到了进一步的发展。所获得的科学成果将用于许多铁路关键计算机系统的应用程序开发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Radioelectronic and Computer Systems
Radioelectronic and Computer Systems Computer Science-Computer Graphics and Computer-Aided Design
CiteScore
3.60
自引率
0.00%
发文量
50
审稿时长
2 weeks
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