RU2457136C2 - Method of controlling track state - Google Patents

Method of controlling track state Download PDF

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Publication number
RU2457136C2
RU2457136C2 RU2010124714/11A RU2010124714A RU2457136C2 RU 2457136 C2 RU2457136 C2 RU 2457136C2 RU 2010124714/11 A RU2010124714/11 A RU 2010124714/11A RU 2010124714 A RU2010124714 A RU 2010124714A RU 2457136 C2 RU2457136 C2 RU 2457136C2
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RU
Russia
Prior art keywords
voltage
end
release
track
rail line
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RU2010124714/11A
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Russian (ru)
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RU2010124714A (en
Inventor
Владимир Михайлович Лисенков (RU)
Владимир Михайлович Лисенков
Петр Филимонович Бестемьянов (RU)
Петр Филимонович Бестемьянов
Юрий Иосифович Полевой (RU)
Юрий Иосифович Полевой
Original Assignee
Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС)
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Priority to RU2010124714/11A priority Critical patent/RU2457136C2/en
Publication of RU2010124714A publication Critical patent/RU2010124714A/en
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Publication of RU2457136C2 publication Critical patent/RU2457136C2/en

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Abstract

FIELD: transport.
SUBSTANCE: invention relates to railway equipment, namely, to railroad ACS and telemetry hardware and may be used for traffic control. Method of controlling track state consists in applying alternating voltage at one end of track and receiving this voltage at other end of track, and comparing received voltage with threshold value. At receiver end, current voltage value is fixed when track is free and stored. Average voltage from the last three samples is determined and accepted as release threshold voltage. Occupation of track is fixed when inlet resistance on supplying end goes lower than threshold resistance. Release - when inlet resistance on receiver end exceeds threshold value of occupation resistance and average voltage exceeds threshold value of release voltage.
EFFECT: higher reliability of track state control.
1 dwg

Description

The invention relates to railway equipment, namely to railway automation and telemechanics, and can be used to control the movement of trains.

A known method of controlling the freedom of track sections is that an alternating current signal is supplied to the rail line at one end, the signal change is monitored at the other end depending on the coordinate of the train shunt, and the track section is freed by the nature of the signal change after occupying the previous rail circuit and after a predetermined time interval, the reference voltage is fixed - the voltage of the receiving end of a given rail circuit, according to which threshold occupation and release voltages are determined, compared ivaya threshold voltage with a current determined status portion, after release of this and the following sections again override the reference voltage [RF patent №2238867, IPC V61L 23/16. A way to control the freedom of track sections. Authors: Polevoy Yu.I., Polevaya LV, Yakovlev VN, Smyshlyaev VA, Gumennikov VB BI No. 30, 2004].

The disadvantage of this method is that in the presence of significant longitudinal asymmetry, false control of the state of the track sections is possible.

A known method for monitoring the condition of a rail line, implemented in a method for controlling the freedom of track sections, is that an alternating current signal (alternating voltage) is supplied to the rail line at one end, and it is received at the other end. In this case, the recorded current signal values are compared with the threshold values of occupation and release. The threshold value of the occupation is taken to be the current of the power source when a normative shunt is applied to this end and dry ballast is used, and the threshold value of the release is the voltage of the receiving end fixed at the same moment multiplied by the safety factor. If the current source exceeds the threshold occupation, the occupation of the track section is recorded, and when the voltage of the receiving end of the threshold exceeds the exemption threshold, it is released [RF Patent No. 2267431, IPC B61L 23/16. A way to control the freedom of track sections. Authors: Polevoy Yu.I., Polevaya L.V., Troshina M.V., Aliev R.M. BI No. 01, 2004].

The disadvantage of this method is that when the supply voltage is reduced, the occupation of the rail line may not be fixed, and the release can be fixed when the area is occupied.

This technical solution is selected as a prototype.

The technical result to which this invention is directed is to increase the reliability of monitoring the condition of the rail line.

The technical result is achieved by the fact that in the method of monitoring the state of the rail line, which consists in the fact that an alternating voltage is applied to the rail line at one end, and at the other end it is received and compared with a threshold value, at the receiving end, the current voltage value is fixed with a free rail lines and remember, determine the average voltage of the last three measurements and take it for the threshold voltage release, occupation of the rail line is fixed when the input resistance of the rail ns at the feeding end of a class lower than the threshold resistance, and release the rail lines are fixed at the input resistance exceeds the rail line at a receiving end is above the threshold resistance studies and in excess of the average voltage threshold value release voltage.

Figure 1 presents the location of the first, second, third rail lines PL 1 , PL 2 , RL 3 ; dependences on the coordinate of the voltage shunt of the receiving end of the RL 2 rail line U K = φ (X S ) (curve 1), the input resistances of the beginning and end of the RL 2 rail line U N = φ H (X S ) and U K = φ K ( X S ) (curves 2 and 3); installation locations of receivers P f4 and P f1 , receiving frequencies f4 = 720 Hz and f1 = 420 Hz; the installation location of the generators G f1 and G f2 , generating frequencies f1 = 420 Hz and f 2 = 580 Hz; threshold resistance occupation Z PZ ; threshold voltage release U ON ; input impedances during occupation and release of Z З and Z О ; the coordinates of the occupation and release of X W and X O ; the voltage reading point of the receiving end of the rail line RL 2 U 1 -U 10 .

The action of the method is as follows. With a free rail line RL 2 through a fixed period of time T (0.1 s) is read and stored in the memory voltage of the receiving end. As a memory device, a stack with three registers is provided, working on the principle of "first in, first out". With the occupation of the rail line, which is fixed at the point X З when the input resistance decreases to the value Z З (curve 2), the voltage control stops. The input resistance of the input end of the rail line RL 2 and the voltage of the receiving end are controlled by a generator G f1 , which is connected at the input end. The receiver P f1 is connected at the output end of the rail line RL 2 , it controls the voltage of the output end. Voltage monitoring resumes after the train leaves the RL 2 rail line when the input resistance of the output end of the RL 2 line increases to Z O (curve 3) at the coordinate of the shunt X y . The input resistance of the output end of the rail line of the radar 2 is controlled by a generator G f2 , which is connected at the output end.

At the moment of fixing the occupation of the RL 2 rail line (point X З ), the voltage values stored in the stack memory are converted to the average (U 3 + U 2 + U 1 ) / 3, which is taken as the threshold voltage for releasing U ON . The use of an average voltage value instead of the current significantly reduces the negative effects of interference.

With the exit of the train from the rail line RL 2 increases the current voltage of the receiving end. If the average voltage (U 10 + U 9 + U 8 ) / 3 exceeds the threshold value U ON , then the release of the rail line is recorded.

The proposed method allows to increase the reliability of monitoring the state of rail lines with reduced insulation resistance and a greater length of the rail line, as well as significantly increase the shunt sensitivity.

Claims (1)

  1. A method of monitoring the condition of the rail line, namely, that an alternating voltage is supplied to the rail line at one end, and at the other end it is received and compared with a threshold value, characterized in that at the receiving end, the current voltage value is fixed with a free rail line and stored , determine the average voltage of the last three measurements and take it for the threshold voltage release, occupation of the rail line is fixed when the input resistance of the rail line at the supply end of the lower e threshold occupation resistance, and the release of the rail line is fixed when the input resistance of the rail line at the receiving end is higher than the occupancy threshold value and when the averaged voltage exceeds the threshold value of the release voltage.
RU2010124714/11A 2010-06-16 2010-06-16 Method of controlling track state RU2457136C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2010124714/11A RU2457136C2 (en) 2010-06-16 2010-06-16 Method of controlling track state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2010124714/11A RU2457136C2 (en) 2010-06-16 2010-06-16 Method of controlling track state

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RU2010124714A RU2010124714A (en) 2011-12-27
RU2457136C2 true RU2457136C2 (en) 2012-07-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2723529C1 (en) * 2019-09-20 2020-06-15 Федеральное государственное автономное образовательное учреждение высшего образования "Российский университет транспорта" (ФГАОУ ВО РУТ (МИИТ), РУТ (МИИТ) Method for monitoring conditions of a branched track circuit in the neck of a station

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230085B1 (en) * 1997-05-15 2001-05-08 Hitachi, Ltd. Train detection system and a train detection method
EP1338492A1 (en) * 2002-02-22 2003-08-27 Alstom Transport S.p.A. System for occupancy detection in a railroad line and for digital communication with trains that run along said railroad line
RU2273582C2 (en) * 2004-06-01 2006-04-10 Самарская государственная академия путей сообщения (СамГАПС) Method of checking non-occupancy of rail line
RU2278044C2 (en) * 2004-05-05 2006-06-20 Самарская государственная академия путей сообщения (СамГАПС) Rail line checking method
RU2294856C1 (en) * 2005-08-08 2007-03-10 Государственное образовательное учреждение высшего профессионального образования "Самарская государственная академия путей сообщения" (СамГАПС) Rail line checking method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230085B1 (en) * 1997-05-15 2001-05-08 Hitachi, Ltd. Train detection system and a train detection method
EP1338492A1 (en) * 2002-02-22 2003-08-27 Alstom Transport S.p.A. System for occupancy detection in a railroad line and for digital communication with trains that run along said railroad line
RU2278044C2 (en) * 2004-05-05 2006-06-20 Самарская государственная академия путей сообщения (СамГАПС) Rail line checking method
RU2273582C2 (en) * 2004-06-01 2006-04-10 Самарская государственная академия путей сообщения (СамГАПС) Method of checking non-occupancy of rail line
RU2294856C1 (en) * 2005-08-08 2007-03-10 Государственное образовательное учреждение высшего профессионального образования "Самарская государственная академия путей сообщения" (СамГАПС) Rail line checking method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2723529C1 (en) * 2019-09-20 2020-06-15 Федеральное государственное автономное образовательное учреждение высшего образования "Российский университет транспорта" (ФГАОУ ВО РУТ (МИИТ), РУТ (МИИТ) Method for monitoring conditions of a branched track circuit in the neck of a station

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Effective date: 20120617