RU2278044C2 - Rail line checking method - Google Patents

Rail line checking method Download PDF

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Publication number
RU2278044C2
RU2278044C2 RU2004113759/11A RU2004113759A RU2278044C2 RU 2278044 C2 RU2278044 C2 RU 2278044C2 RU 2004113759/11 A RU2004113759/11 A RU 2004113759/11A RU 2004113759 A RU2004113759 A RU 2004113759A RU 2278044 C2 RU2278044 C2 RU 2278044C2
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RU
Russia
Prior art keywords
rail
value
rail line
line
resistance
Prior art date
Application number
RU2004113759/11A
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Russian (ru)
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RU2004113759A (en
Inventor
Юрий Иосифович Полевой (RU)
Юрий Иосифович Полевой
Людмила Владимировна Полева (RU)
Людмила Владимировна Полевая
Марина Васильевна Трошина (RU)
Марина Васильевна Трошина
Original Assignee
Самарская государственная академия путей сообщения (СамГАПС)
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Priority to RU2004113759/11A priority Critical patent/RU2278044C2/en
Publication of RU2004113759A publication Critical patent/RU2004113759A/en
Application granted granted Critical
Publication of RU2278044C2 publication Critical patent/RU2278044C2/en

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Abstract

FIELD: railway transport; signaling and communication.
SUBSTANCE: invention is designed for interval control of traffic. According to proposed method, ac signal is applied to rail line at one end, and at other end running value of signal is compared with track clear voltage threshold value. Track is considered clear when running value of signal exceeds clear voltage threshold value. Line generator and receiver are connected in turn to each rail line of section between stations and voltage of beginning and end of rail line and current of supply source are recorded. Summary input resistance of two adjacent rail lines is determined and averaged value of input resistance of rail line is found. Track clear voltage threshold value corresponds to each averaged resistance value.
EFFECT: improved safety owing to increased reliability of checking of rail lines.
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Description

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

There is a method of controlling the freedom of track sections, which consists in determining the number of free track sections on the stage and the sum of the voltage values in the same sections, and then find the arithmetic mean value of the stresses. The current value of each of the sections is compared with the arithmetic mean value. With a significant difference between the current value and the arithmetic average, the busyness of the track section is recorded, otherwise, the free space [RF Patent No. 2025358 IPC B 61 L 23/16. A method of controlling the freedom of track sections and a device for its implementation. Authors: Polevoy Yu.I., Streltsov S.K., Mazalova I.V., Kravtsova N.A. BI No. 24, 1994].

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 of controlling the freedom of track sections, which consists in the fact that the value of the current voltage at the receiver is compared with threshold voltage values. The excess of the current voltage over the threshold value is recorded as the freedom of the route section, otherwise - employment [Kotlyarenko N.F. Track lock and auto adjustment. - M.: Transport, 1983].

This technical solution is selected as a prototype.

The disadvantage of this method is that with a reduced insulation resistance, false monitoring of the condition of the track sections is possible.

The technical result, the achievement of which this invention is directed, is to increase the reliability of monitoring the condition of the track sections.

The technical result is achieved in that the method of monitoring the rail line, which consists in the fact that an AC signal is supplied to the rail line at one end, and at the other end, the current signal value is compared with the threshold voltage release value, when the current value is higher than the threshold voltage release value fixing the release of the rail line, and the track generator and receiver are alternately connected to each rail line of the haul, register the voltage of the beginning and end of the rail line and power supply current, determine the total input resistance of two adjacent rail lines, find the average value of the input resistance of the rail line, each average value of the resistance uniquely corresponds to a threshold value of the release voltage.

Figure 1 shows a diagram of a rail circuit. Figure 2 shows graphs of the dependencies of the threshold voltage of occupation and release, depending on the average input resistance

Figure 1 presents the rail circuit, which contains the following elements: a path generator 1, a limiting resistor 2, a switching device 3, resistors (equivalent resistance to the rail) 4, 5, 6, matching transformers 7, 8, 9, rail lines 10, 11 , 12, 13, the first bandpass filter 14, the first rectifier 15, the first analog-to-digital converter (ADC) 16, the electronic computer (PC) 17, the second bandpass filter 18, the second rectifier 19 and the second ADC 20, the third bandpass filter 21 , the third rectifier 22 and the third ADC 23. In addition, in figure 1 for with Ties of computers Sh1, Sh2, Sh3 and Sh4 are depicted on a computer with control and monitoring objects.

Figure 2 shows the dependence of the threshold voltage occupation and release from the averaged input resistance.

The devices of the rail circuit (figure 1) are connected as follows. The output of the path generator (PG) 1 through the resistor (R 0 ) 2 is connected to the first input (VX1) of the switching device (PU) 3, to the linear inputs of VL1, VL2 and VL3 of this device via resistors (R 1 ) 4, (R 2 ) 5 and (R 3 ) 6, transformers (T 1 ) 7, (T 2 ) 8 and (T 3 ) 9 connected rail lines (RL1) 10, (RL2) 11, (RL3) 12 and (RL4) 13. Ko the first input of the switching device (PU) 3 is connected to the first output of the computer 17, and the first input (BX1) is connected to the output of the switching device 3 through the first band-pass filter (FP1) 14, the first rectifier (B1) 15 and the first analog-to-digital converter (ADC1) 16 ) Computer 17. The first input of the switching device 3 is connected to the second input of the computer 3 through the second band-pass filter (FP2) 18, the second rectifier (B2) 19 and the second analog-to-digital converter (ADC2) 20. To the third input of the computer 17 are connected the resistor poles (R 0 ) 2 through the third bandpass filter (FP3) 21, the third rectifier (B3) 22 and the third analog-to-digital converter (ADC3) 23. To the second output of the computer 17 is a control circuit for the arrows and signals of the station and the stage (the computer monitors all station and distillation devices, as well as control of arrows and with persecuted or directly transmits information on stock).

The operation of the device is as follows. The switching device 3 alternately connects a generator 1 and a computer 17 to each rail line. A computer through the first output (OUT1) controls the process of connecting the radar to the generator 1 and the computer 17. Information about the voltage of the receiving end of each rail line is received through matching transformers 7, 8, 9 , resistors 4, 5, 6, elements 14, 15, 16 to the first input of the computer (VX1). Information about the voltage of the supply end of each rail line is supplied to the second input of the computer 17 through the elements 18, 19 and 20. Information about the current of the supply end is supplied as the voltage drop across the resistor 2 through the elements 18, 19 and 20 to the third input of the computer (BX2) .

The voltage at the second input of the computer 17 and the current value at the third input of the computer can determine the total input resistance of two adjacent rail lines that are connected in parallel with each other. Adding the mentioned resistance at the ends of one rail line, find the average input resistance of this rail line. Each averaged resistance uniquely corresponds to the insulation resistance of the rail line. By the insulation resistance, the threshold value of the release voltage is found. These values can be calculated in advance, and then entered into the computer, or the computer determines the average input resistance of each rail line from the voltage values at the ends of the rail line and the current of the supply end, then the specific resistance of the ballast and the threshold value of the release voltage.

The proposed technical solution allows to increase traffic safety by increasing the reliability of monitoring the condition of the track sections.

Claims (1)

  1. The method of monitoring the rail line, namely, that an alternating current signal is supplied to the rail line at one end, and at the other end, the current signal value is compared with the threshold voltage release value, when the current value is higher than the threshold voltage release value, the rail line release different the fact that the track generator and receiver are alternately connected to each rail span line, the voltage of the beginning and end of the rail line and the current of the power source are recorded, lyayut total input impedance of two adjacent rail lines are averaged input value of resistance of the rail lines, each average value of the resistance corresponds uniquely release threshold voltage.
RU2004113759/11A 2004-05-05 2004-05-05 Rail line checking method RU2278044C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2004113759/11A RU2278044C2 (en) 2004-05-05 2004-05-05 Rail line checking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2004113759/11A RU2278044C2 (en) 2004-05-05 2004-05-05 Rail line checking method

Publications (2)

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RU2004113759A RU2004113759A (en) 2005-10-20
RU2278044C2 true RU2278044C2 (en) 2006-06-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457136C2 (en) * 2010-06-16 2012-07-27 Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) Method of controlling track state

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
КОТЛЯРЕНКО Н.Ф. Путевая блокировка и авторегулировка. - М.: Транспорт, 1983, с.145-159. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457136C2 (en) * 2010-06-16 2012-07-27 Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) Method of controlling track state

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20070506