Mathematical model and algorithm for determining the optimal parameters of sensors control the approach of a train to a crossing in normal and control modes

Aliev, Ravshan; Aliev, Marat; Tokhirov, Ezozbek

doi:10.1063/5.0089486

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…In fig. 2 shows the magnetization of the rail by the property of ferromagnetic Consider a system that counts the axes of a rolling stock [2,4]. Axle counting system, a microcontroller-based device that receives information from two different coils combined by a magnetic field [7], detection of the presence of a wheelset on a railway track occurs due to the overlap of the field (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…It is necessary to count the number of wheelsets that have passed in the forward or reverse direction, the counting result is then transferred to an external device. In other words, the system is a counting point [3], and its application with a checkpoint device [4] or a counting device [8] allows solving such tasks of railway automation and telemechanic system such as monitoring the vacancy of track sections and determining the ordinate of the rolling stock. In other words, the system is a counting point [15], and its application with a checkpoint device [17][18][19] or a counting device [16] allows solving such tasks of SZAT such as monitoring the vacancy of track sections and determining the ordinate of the rolling stock [5].…”

Section: Methodsmentioning

confidence: 99%

“…The work of counting the axes is plotted in Fig. 1 on the arising alternating magnetic field of alternating current, the magnetic field generated by the transmitting coil W1, received by the copper coil by the receiving turns W2, located on the other side of the rail, where the emf of the input and output signals is generated [4][5][6][7]. Where 𝐾𝑠 is coefficient sensitivity 𝐹 𝑚 , A, is the MMF of the permanent magnet of the sensor; 𝑅 𝑚 is the total resistance of the ferromagnetic sections of the sensor's magnetic circuit; 𝑅 𝑏 is equivalent resistance of the air gap…”

Section: Introductionmentioning

confidence: 99%

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Algorithm, mathematical models and analysis of axle counting systems

Aliev,

Tokhirov

2023

E3S Web Conf.

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The article discusses one of the sensors that is widely used to determine the location of a train with an axle counting system, namely the axle counter, since various types of sensors, such as track circuits, eurobalises, etc., are widely used in railway automation at stages and stations. The study consists in identifying the failure of the railway car counting axle under the influence of disturbing factors, namely the influence of weather conditions, terrain, the influence of rail magnetization, which leads to a malfunction of the axle counting system. The research method was to determine the failure in the calculation of the axles of the train, when, for unknown reasons, false information was shown, it turned out that when switching from diesel traction to electric rail, it is a grounding circuit, and the electrochemical effect also manifests itself, which leads to the accumulation of electrical energy. The research method consists in determining these factors; for this, algorithmic expressions were developed and the principle of operation of the axle counter was investigated. As a result, it was found that with electric traction, rail magnetization and magnetization between rail tracks, an accumulator effect, occur. The influence of the disturbing factor is calculated and shown by the distance to the sensitive element of the control sensor, the magnitude of the electromagnetic field intensity modulus, which affects the operation of the axle count sensor. In conclusion, protection methods based on adaptive protection methods are proposed.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Algorithm, mathematical models and analysis of axle counting systems

Aliev,

Tokhirov

2023

E3S Web Conf.

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“…The difference between tonal jointless track circuits and track circuits with insulating joints has been published in many sources. [1] and others. Design, reliability criteria and process automation issues are considered in [2].…”

Section: Introductionmentioning

confidence: 96%

Mathematical models and algorithms for determining the modes of an intelligent stage control sensor

Aliev,

Matvaliyev

2024

E3S Web Conf.

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In article discusses models of unlimited track circuits with a receiver, adapting to different working conditions, applied double receiver with one power supply in the middle, which allows you to extend the length of the continuous rail circuit. For this, a goal is set, in which is the development of models of jointless track circuits with an adaptive receiver, in which the rail line must take into account the total stress distribution along the rail line and disturbing factors. The article presents the equivalent circuits of continuous welded rail circuits with an adaptive receiver, algorithmic expressions for determining currents and voltages at the ends of the rail circuit, the coefficients of rail lines with an adaptive receiver are developed, calculation algorithms are presented. In conclusion, a graph is given, according to which it is shown that a continuous rail circuit with an adaptive receiver can operate with an insulation resistance three times lower than the threshold value in any modes of the rail circuit, taking into account the fact that, minimum allowable insulation resistance for tone-on-tone continuous rail circuits is taken as Ri=0,7ohm*km. Derived for the theory and synthesis of solutions, and also proposed new approaches to ensure the operating modes of the rail circuit, taking into account the real and weather conditions of operation.

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Algorithms and mathematical model for determining shunt power of intelligent track section control sensor

Aliev

2023

E3S Web of Conf.

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The normal operating state of jointless and butt track circuits depends on the state of change in the insulation resistance; respectively, the correct choice of the maximum and minimum limit resistance characteristics should be considered. The maximum and minimum limit resistance depends on the power consumption of the unlimited track circuit in the normal and the mode of movement of the wheelset at the supply end of the rail line. The article presents a study of an intelligent track circuit without insulated joints, where logical elements replace all the equipment of mechanical and electrical energy converters. The research aims to determine the shunt that affects the definition of the movable block, respectively, the definition of the power of the shunt. The method consists in choosing a sensor, namely an intelligent track control sensor, and developing a mathematical model for determining the shunt power, which provides the influence of the shunt on the track circuit. Research carried out for track circuits with insulating joints has shown that with the value of the argument, modulus, and synthesis of the maximum-minimum limit resistance when the supply end is shunted, the maximum power will be the least minimum Rkmax. Because of the lack of more accurate data for an intelligent control sensor, studies were carried out.

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Mathematical model and algorithm for determining the optimal parameters of sensors control the approach of a train to a crossing in normal and control modes

Cited by 4 publications

References 3 publications

Algorithm, mathematical models and analysis of axle counting systems

Algorithm, mathematical models and analysis of axle counting systems

Mathematical models and algorithms for determining the modes of an intelligent stage control sensor

Algorithms and mathematical model for determining shunt power of intelligent track section control sensor

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