RU153535U1 - Device for measuring asymmetry of receiving coils of locomotive apparatus als - Google Patents

Device for measuring asymmetry of receiving coils of locomotive apparatus als Download PDF

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RU153535U1
RU153535U1 RU2015102196/11U RU2015102196U RU153535U1 RU 153535 U1 RU153535 U1 RU 153535U1 RU 2015102196/11 U RU2015102196/11 U RU 2015102196/11U RU 2015102196 U RU2015102196 U RU 2015102196U RU 153535 U1 RU153535 U1 RU 153535U1
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Russia
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unit
als
locomotive
input
track
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RU2015102196/11U
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Russian (ru)
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Евгений Вячеславович Горенбейн
Леонид Игоревич Стряпкин
Александр Константинович Табунщиков
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Открытое Акционерное Общество "Научно-Исследовательский И Проектно-Конструкторский Институт Информатизации, Автоматизации И Связи На Железнодорожном Транспорте"
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Abstract

A device for measuring the asymmetry of the receiving coils of an ALS locomotive equipment, comprising a calculation unit, characterized in that it further comprises a series-connected ALS code signal generator and a current measurement and adjustment unit, the outputs of which are connected to the primary winding of the first track transformer, the secondary winding of which is connected via controlled switches to the wires of the track loop laid on the soles of the track rails to which the primary winding of the second track transformer is connected ora with a shorted secondary winding, a control unit, outputs connected respectively to the control inputs of the switches and a unit for measuring and adjusting current, a reading unit located in close proximity to the locomotive traffic light and connected via an output via a wireless communication channel to the input of the calculation unit, the second input of which is connected to the output of the current measurement and adjustment unit, and the registration unit, the input connected to the output of the calculation unit, while the zero outputs of the path transformers are connected by wire om, laid in the center of the path, and receiving coil inductively coupled to the wayside train.

Description

The utility model relates to railway automation, in particular to devices for measuring the asymmetry of the receiving coils of locomotive equipment for automatic locomotive signaling (ALS) and can be used for technical inspections of locomotives in the conditions of repair depots.
The asymmetry of the receiving coils of the locomotive equipment of the ALS is higher than the permissible norm, as well as the asymmetry of the traction current in the rail circuits, causes interference in the channel of the locomotive equipment of the ALS and malfunctions of it, so there is a need to measure it during routine technical inspections (MOT) in the conditions of repair depots .
A portable device for measuring the parameters of receiving coils of the IPLK type is known, including a measuring mechanism, an input voltage divider, a capacitor store and switches (see Astrakhan V.I. et al. Unified integrated locomotive safety device. M. 2009. p. 113) .
The device allows you to measure the quality factor, inductance, active resistance and induced EMF in the receiving coils directly on the locomotive. However, it is not used to measure the asymmetry of locomotive ALS coils due to the complexity of the measurement process, since the receiving coils in the terminal box must be disconnected and the required measurement accuracy is not ensured.
The closest technical solution is a device for measuring the asymmetry of traction current in rail circuits, containing sensors for measuring magnetic field strength, one of which is connected to the inputs of the first and second bandpass filters, and the other to the inputs of the third and fourth bandpass filters, equipped with a voltage difference calculator, one input connected respectively to the outputs of the first and second bandpass filters, and another input, respectively, to the outputs of the third and fourth bandpass filters, subtracting a voltage sum splitter, one input connected respectively to the output of the first and second bandpass filters, and another input connected respectively to the outputs of the third and fourth bandpass filters, a voltage ratio calculator, one input connected respectively to the outputs of one and the other voltage difference calculator, and the other input, respectively to the outputs of one and the other voltage sum calculator, and the outputs, respectively, to one and the other inputs of the voltage difference calculator (RU 88631, B6 1L 25/08, 11/20/2009).
The device is used to determine the asymmetry of traction current in rail circuits using locomotive ALS coils, which act as sensors for measuring magnetic field strength. In this case, when determining the asymmetry of the traction current, the asymmetry of the locomotive ALS coils is taken into account, the asymmetry coefficient of which is calculated as the ratio of the voltage difference occurring in each of the locomotive coils under the action of the ALS currents to their sum.
A disadvantage of the known device is the inability to use it in a depot, since this device is installed only on a specific locomotive and measurements are carried out when it moves along a section of the track.
The problem to be solved is to create a device for measuring the asymmetry of the receiving coils of locomotive equipment ALS, which allows to automatically determine the asymmetry of the receiving coils of locomotive equipment ALS in the conditions of repair depots.
The technical result is the automation of the measurement process of the asymmetry of the receiving coils of locomotive equipment ALS during technical inspection of the locomotive in the depot.
The technical result is achieved by the fact that the device for measuring the asymmetry of the receiving coils of the locomotive equipment ALS contains a calculation unit, series-connected ALS code signal generator and a current measurement and adjustment unit, the outputs of which are connected to the primary winding of the first track transformer, the secondary winding of which is connected via controlled switches to wires of the track loop laid on the soles of the track rails to which the primary winding of the second track transformer with a shorted secondary winding, a control unit, outputs connected respectively to the control inputs of the switches and a current measurement and adjustment unit, a readout unit located in close proximity to the locomotive traffic light and connected via an output via a wireless communication channel to the input of the calculation unit, the second input of which is connected to the output of the unit measuring and adjusting the current, and the registration unit, the input connected to the output of the calculation unit, while the zero conclusions of the path transformers are connected by a wire, p located in the center of the path, and the receiving coils are inductively connected to the path loop.
The essence of the proposed technical solution is illustrated by the drawing, which shows a structural diagram of a device for measuring the asymmetry of the receiving coils of the ALS.
A device for measuring the asymmetry of the receiving coils of locomotive equipment ALS contains a calculation unit 1, a serially connected generator 2 of ALS code signals and a unit 3 for measuring and adjusting current, the outputs of which are connected to the primary winding of the first track transformer 4, the secondary winding of which is connected via controlled switches 5 and 6 to the wires of the track loop 7, laid on the soles of the track rails, to which the primary winding of the second track transformer 8 with the shorted secondary winding is connected , control unit 9, outputs connected respectively to control inputs of switches 5 and 6 and current measuring and adjustment unit 3, a reading unit 10 located in close proximity to the locomotive traffic light 11 and connected via an output via wireless communication channel 12 to the input of calculation unit 1, the second the input of which is connected to the output of the current measuring and adjustment unit 3, and the recording unit 13, the input connected to the output of the calculation unit 1, while the zero outputs of the track transformers 4 and 8 are connected by a wire laid along to the center of the path, the ALS locomotive equipment reception and decryption unit 14 is connected to the locomotive traffic light 11, and the receiving coils 15 and 16 are inductively coupled to the line loop and connected to the ALS locomotive equipment reception and decryption unit 14.
A device for measuring the asymmetry of the receiving coils of locomotive equipment ALS operates as follows.
First, determine the sensitivity of the receiving locomotive equipment ALS. In this case, the switches 5 and 6 are closed. The generator 2 generates a code signal with the given parameters, and block 3 controls the amount of current in the wires of the loop cable 7. The sensitivity of the receiving locomotive equipment ALS is defined as the value of the minimum value of the current I w in the loop cable 5, at which code signals appear on the locomotive traffic light 11, set by the generator 2. The sensitivity of the receiving locomotive equipment should be normative depending on the type of traction of the locomotive.
After that, the control unit 9 alternately opens the switches 5 and 6. When the switch 5 is opened, the current flows through the office formed by the first half-winding of the track transformer 4, the closed switch 6, the section of the track loop 7, the first half-winding of the track transformer 8 and the wire connecting the zero terminals of the track transformers 5 and 6. In this case, the signal is practically induced only in the receiving coil 16. Accordingly, when the switch 6 is opened and the switch 5 is closed, the current flows through the circuit formed by the second half the path transformer 4 is closed, the circuit breaker 5 is closed, the path of the loop 7, the second half-winding of the path transformer 8 and the wire connecting the zero terminals of the path transformers 5 and 6. In this case, the signal is induced only in the receiving coil 15.
Block 3 controls the amount of current supplied to the primary winding of the track transformer 5, each of its values is measured and sent to block 1.
When signal readings appear at the locomotive traffic light 11, the reading unit 10 generates a corresponding signal, which transmits via wireless channel 12 to unit 1. Block 1, receiving a signal from the reading unit 10, fixes the current value I w specified by block 3.
When alternately opening the switches 5 and 6, the sensitivity of the locomotive equipment of the ALS when receiving a code signal through one coil - I w1 and, accordingly, to the other - I w2, is determined by the value of the fixed current value I w
Block 1 calculation calculates the asymmetry coefficient of the receiving coils of locomotive equipment ALS according to the formula
K ac = (I W1 -I W2 ) / (I W1 + I W2 ) × 100,%,
since there is a direct relationship between the current in the loop 7 and the voltage created in the coils 15 and 16 when inductively coupled to it.
The results of calculations and measurements are recorded in block 13 registration. When K ac is greater than the norm of 5%, the receiving coils should be replaced.
Thus, the inventive device allows you to quickly automatically determine when checking in repair depots the degree of suitability for operation of the receiving coils of locomotive equipment ALS.

Claims (1)

  1. A device for measuring the asymmetry of the receiving coils of an ALS locomotive equipment, comprising a calculation unit, characterized in that it further comprises a series-connected ALS code signal generator and a current measurement and adjustment unit, the outputs of which are connected to the primary winding of the first track transformer, the secondary winding of which is connected via controlled switches to the wires of the track loop laid on the soles of the track rails to which the primary winding of the second track transformer is connected ora with a shorted secondary winding, a control unit, outputs connected respectively to the control inputs of the switches and a unit for measuring and adjusting current, a reading unit located in close proximity to the locomotive traffic light and connected via an output via a wireless communication channel to the input of the calculation unit, the second input of which is connected to the output of the current measurement and adjustment unit, and the registration unit, the input connected to the output of the calculation unit, while the zero outputs of the path transformers are connected om, laid in the center of the path, and receiving coil inductively coupled to the wayside train.
    Figure 00000001
RU2015102196/11U 2015-01-26 2015-01-26 Device for measuring asymmetry of receiving coils of locomotive apparatus als RU153535U1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2645494C1 (en) * 2017-04-06 2018-02-21 Открытое Акционерное Общество "Научно-Исследовательский И Проектно-Конструкторский Институт Информатизации, Автоматизации И Связи На Железнодорожном Транспорте" Method of facility checkout of automatic cab signalling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2645494C1 (en) * 2017-04-06 2018-02-21 Открытое Акционерное Общество "Научно-Исследовательский И Проектно-Конструкторский Институт Информатизации, Автоматизации И Связи На Железнодорожном Транспорте" Method of facility checkout of automatic cab signalling

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