RU2725829C1 - Device for diagnostics of alsn relay locomotive equipment - Google Patents

Abstract

FIELD: diagnostic tools.SUBSTANCE: invention relates to means of diagnostics of relay onboard equipment ALS. Device comprises a data input unit, a control unit, a test signal generation unit, a report generation unit, a memory unit and ALS on-board hardware in locomotive receiving coils, a locomotive amplifier and a locomotive decoder, first and second inductors, a first connection unit, a monitoring and analysis unit, a prediction unit, wherein to the outputs of the test signal generating unit the first inductor and the second inductor are switched on, the current direction in which changes depending on the type of check performed. At that, the first inductor is inductively connected to the first receiving coil, and the second inductor is connected to the second receiving coil, to on-board equipment of automatic locomotive signaling (ALS) is connected first connection device, allowing to increase the onboard equipment set diagnostics depth due to the signals reading from the inputs and outputs of each of its units, by its outputs connected to the monitoring and analysis unit, control and analysis unit by its outputs is connected to report generation unit and prediction unit, wherein outputs of prediction unit are connected to corresponding inputs of report generation unit.EFFECT: safer train movement.3 cl, 2 dwg

Description

FIELD OF THE INVENTION

The invention relates to the field of railway automation and telemechanics, in particular to means for diagnosing relay on-board equipment of automatic locomotive signaling.

State of the art

Relay locomotive equipment of continuous automatic locomotive signaling (ALSN) consists of two receiving locomotive coils connected in the opposite direction. Their outputs are connected to the input of the locomotive filter (present only with AC electric traction, with DC electric traction and autonomous traction, the outputs of the locomotive coils are connected directly to the amplifier input), which ensures that only the useful signal is extracted from the mixture. The output of the locomotive filter is connected to the input of the locomotive amplifier, the task of which is to amplify the signal arriving at its input. The pulse relay IR, which is part of the locomotive amplifier, acts as a threshold element, thus forming at the output of the amplifier a sequence of pulses and pauses corresponding to the signal perceived from the path. The output of the locomotive amplifier is connected to the input of the locomotive decoder, which, according to the sequence of pulses and pauses at its input, generates at its outputs signals of the locomotive traffic light, periodic check of vigilance and control of the brake system of the rolling stock. The locomotive amplifier and decoder are placed in a common box, connected to each other and to devices outside the common box (locomotive coils, filter, locomotive traffic light, devices for interfacing with the brake system of the rolling stock through the internal terminal panel) through installation (Leonov A.A. Maintenance automatic locomotive signaling. - 5th ed., rev. and add. - M .: Transport, 1982. - 255 p.).

Currently, when the ALS is operating, a large number of failures are occurring due to a decrease in the quality of service for locomotive equipment, which cannot be improved with the use of existing devices for its monitoring and diagnostics.

A known diagnostic system for locomotive equipment of automatic locomotive signaling, including a serially connected control device for the generator of code signals for automatic locomotive signaling (ALS), an ALS code signal generator, an adder, receiving locomotive coils connected to the locomotive equipment ALS and to the adder through the corresponding additional diagnostic winding, except Moreover, the system is equipped with an error counter connected to the comparison device, one of the inputs of which is connected through the ALS code signal generator to the adder, and the other input is connected to the ALS locomotive equipment. Additionally, the system includes a control device for the noise generator, connected through a noise generator to the second input of the adder (RU 2383460, B61L 25/00, 03/10/2010).

This system allows you to control the performance of the on-board equipment of the ALSN, however, it requires special receiving coils equipped with a diagnostic winding for their use. The use of such a system requires the re-equipment of the locomotive fleet and significant additional costs for its implementation. Also, the system does not allow to determine the asymmetry of locomotive receiving coils - one of the essential operational parameters that determine the noise immunity of the functioning of locomotive signaling.

A well-known module for loop-free diagnostics of receiving coils and receivers of automatic locomotive signaling (RU 2653657, B61L 25/00, 05/11/2018), containing a compact case, containing indicators and installed inside the case on a single board, united by a common data bus: digital-analog and analog-to-digital conversion (DAC / ADC), microcontroller, memory, module for activating the operation of the module, power supply and interface unit for connecting.

The known module has a significant disadvantage for the diagnosis of relay equipment: the inability to determine the unit that causes the failure.

A device for measuring the asymmetry of the receiving coils of locomotive equipment ALS (RU 153535, B61L 23/16, 07/27/2015), comprising a calculation unit, characterized in that it further comprises serially connected ALS code signal generator and a current measurement and adjustment unit, to the outputs of which the primary winding of the first track transformer is connected, the secondary winding of which through controlled switches is connected 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 with a shorted secondary winding is connected, the control unit, the outputs connected respectively to the control inputs of the switches and the block measuring and adjusting the 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 measuring and adjustment unit, and the register unit the input connected to the output of the calculation unit, while the zero outputs of the path transformers are connected by a wire laid in the center of the path, and the receiving coils are inductively connected to the path loop.

The specified device allows you to assess the asymmetry of the locomotive receiving coils, however, for its functioning it requires the presence of a stationary loop of a special design, which excludes the possibility of its mobile use. Also, this drawback requires the conversion of most of the existing stationary loops of the test sections of the locomotive depots, which requires significant costs for cable products.

There is a method of line-free operational diagnostics of locomotive equipment for automatic locomotive signaling and a device for its implementation (RU 2666096, B61L 25/06, 09/05/2018).

A method for diagnosing locomotive equipment of automatic locomotive signaling (ALS) is that the diagnostic windings-inductors connected inductively with the corresponding receiving locomotive coils of the ALS are mechanically locked to the receiving locomotive coils of the ALS equipment for the duration of the diagnosis so that the magnetic flux generated diagnostic windings, closed through the magnetic circuits of the receiving locomotive ALS coils, supplying test signals that differ from the standard ones by the presence of interference, as well as temporary, frequency and amplitude distortions, with the help of which the technical condition of the ALS locomotive equipment and the noise immunity level are determined, and the diagnostic mode is changed remotely by radio channel using the control panel, characterized in that for communication between the control panel and the receiving-executive device, a two-way radio channel is used, through which a continuous The role of the command being executed, and a mobile microprocessor device with a wireless module and software is used as a control panel.

A device that implements this method, inductively transmitting ALS test signals to the windings of ALS receiving locomotive coils, consisting of a control panel, the memory node of which includes a base of test signals for supplying to the receiving-executive device, while the receiving-executive device consists of a wireless communication module the output of which is connected to the input of the test signal power amplifier, the output of which is connected to the diagnostic windings-inductors, and a mobile microprocessor device, such as a smartphone, tablet or laptop, having an integrated wireless module and software, is used as a control panel.

The specified method and device that implements it, does not allow to assess the asymmetry of the receiving locomotive coils and does not allow to determine the unit, deviations of the parameters of which lead to malfunctions of the ALSN.

A known method for the diagnosis of locomotive equipment for automatic locomotive signaling and a device for its implementation (RU 2588286, B61L 3/24, 06/27/2016).

A method for diagnosing locomotive equipment of automatic locomotive signaling (ALS) is that an additional diagnostic winding, having an inductive connection with the winding of the receiving locomotive coil of the ALS equipment, is supplied with test code signals and distorting their interference, with the help of which the technical condition of the ALS locomotive equipment is determined, characterized in that the diagnostic winding is wound on a separate magnetic circuit (inductor) that is not connected to the ALS receiving locomotive coil, which is mechanically fixed for the duration of the diagnostics on the corresponding ALS receiving coil so that the magnetic flux generated by the diagnostic winding is closed through the receiving locomotive coil automatic locomotive alarm.

A device that implements this method, inductively transmitting the ALS code signal to the winding of the receiving ALS locomotive coil, consisting of a radio receiver, manual control unit, command decoder, ALS code signal generator with the ability to change time parameters, an interference generator, a memory node of real ALS signals in rail circuits recorded in areas with a high number of failures of the locomotive equipment of the ALS, the signal combiner, power amplifier, inductor, which serves to create the electromagnetic field necessary to induce the electromotive force in the receiving coil of the locomotive equipment of the ALS corresponding to the transmitted code signal of the ALS, and in the receiving amplifier device, the output of the radio receiver is connected to the input of the command decoder, the output of the manual control unit is connected to another input of the command decoder, one output of which is connected to the input of the ALS code signal generator, the output of which is connected to the first input torus, the second output of the command decoder is connected to the input of the interference generator, the output of which is connected to the second input of the adder, the third output of the command decoder is connected to the input of the memory node of the real ALS signals in rail circuits recorded in areas with a high number of failures of the locomotive equipment of the ALS, the output of which is connected with the third input of the adder, and the output of the adder is connected to the input of the series-connected power amplifier and inductor. Device, characterized in that to expand its functionality it is equipped with a connector, to which an additional inductor is connected, mounted on another ALS receiving coil and allowing to diagnose ALS locomotive equipment through two receiving coils.

A significant drawback of this method and device that implements it is the inability to assess the asymmetry of the receiving coils, as well as the ability to identify the block that causes the failure.

The closest in technical essence to the claimed object is a device for checking and evaluating the noise immunity level of on-board equipment for automatic locomotive signaling, containing a series-connected programmable unit for setting codes and distortions, a code signal generator for automatic locomotive signaling and interference, and a unit for adjusting and measuring current levels through which a rail circuit or a loop is connected via inductive coupling to the on-board equipment of the automatic locomotive signaling system of the locomotive, as well as the reading unit of the locomotive traffic light or the display unit of the on-board equipment of the automatic locomotive signaling system, with an output connected to the first inputs of the on-board automatic locomotive signaling analysis module and the switching timing analysis module readings of the onboard automatic locomotive alarm, the output of each of which is connected to the corresponding input of the formation module a verification protocol, another input connected to the output of the data input unit, and outputs to the inputs of the display unit and the registration unit, and a memory unit included between the second inputs of the on-board automatic locomotive signaling analysis module and the on-board auto-locomotive signaling analysis timing analysis parameter module, while the programmable unit for setting codes and distortions is equipped with a control unit (RU 2567999, B61L 3/10, 10/10/2015). It is taken as a prototype.

The prototype does not allow to identify the unit of equipment and elements in it, the mismatch of the parameters of which leads to malfunctions of the ALSN, i.e. identify the reasons for the decrease in individual noise immunity of locomotive equipment.

Disclosure of invention

The technical result to the achievement of which this invention is directed is to reduce the number of malfunctions in the operation of ALSN airborne equipment and increase the level of train safety through the use of complex equipment diagnostics in the conditions of test sections of depot checkpoints. In this case, complex diagnostics includes determining the level of individual noise immunity of locomotive equipment, blocks and block elements, the deviation of the parameters of which do not correspond to the established normative values, which is the reason for the decrease in noise immunity.

The technical result is achieved by the fact that the device for diagnosing relay locomotive equipment ALSN comprises a data input unit, a control unit, a test signal generation unit, a report generation unit, a memory unit and onboard ALS equipment as a part of locomotive receiving coils, and placed in a common box of the locomotive amplifier and locomotive decoder, first and second inductors, first connection unit, control and analysis unit, forecast unit, and the first inductor and second inductor are turned on to the outputs of the test signal generation unit, the current direction in which changes depending on the type of test being performed, while the first inductor inductively connected to the first receiving coil, and the second inductor with the second receiving coil, the first connection device is connected to the on-board equipment of the automatic locomotive alarm, which allows to increase the depth of diagnosis of the set of on-board equipment by reading the signals from the inputs and outputs of each one of its blocks, connected with its outputs to the control and analysis unit, which is connected with its outputs to the report generation unit and the forecast unit, while the outputs of the forecast unit are connected to the corresponding inputs of the report generation unit;

According to another embodiment of the device, with electric traction of alternating current, the on-board equipment of the ALS additionally contains a locomotive filter, in addition, a second connection block is introduced, connected to the outputs of the locomotive filter with its inputs, and connected to the control and analysis unit with its outputs.

In addition, a wireless communication channel is introduced, consisting of the first and second transceivers and a communication line and connected to the operator's workstation, while the input of the first transceiver is connected to the corresponding output of the report generation unit, and connected to the control unit by its output.

Brief Description of the Drawings

The invention is illustrated by drawings in FIG. 12.

In FIG. 1 shows an embodiment of the device with DC traction. In FIG. 2 shows an embodiment of the device with AC traction.

The implementation of the invention

A device for diagnosing relay locomotive equipment ALSN works as follows.

The device receives power from the test battery in the conditions of the ALS control point of the locomotive or from the built-in battery. The device can be made in the form of an industrial tablet computer connected to the first and second inductors 8 and 9 via a cable, and to a connection device 11 via both a cable and a wireless channel for transmitting information, for example, Bluetooth.

At the initial moment of time, the operator, preparing the device for operation, enters with the help of data input unit 1 information about the tested locomotive (series, number, type of thrust, alternating or direct current), type of check and person in charge.

This information, arriving at the input of the control unit 2, initiates the formation of the necessary sequence of test signals in the block for generating test signals 3.

The 3 test signals generated by the test signal generation unit are known operating influences, which are code combinations of various types of code track transmitters: “Z”, “F”, “KZh”, “ZKZh”, as well as code combinations of automatic locomotive signaling of a single continuous series type (ALS-EN). Test signals can be recorded as separate files in the memory unit 5 and formed on the audio output of an industrial tablet computer and then amplified. It is also possible to use a carrier frequency generator and software-controlled modulator as a separate unit of the device.

When controlling the operation of locomotive equipment in the first and second inductors 8 and 9, currents flow, the value of which allows you to create an electromagnetic field equivalent to the current generated in the rails (in operating conditions). Serial or parallel connection of the first and second inductors is provided through the switching unit 7.

The total EMF induced from the first and second inductors 8 and 9 in the first and second receiving coils 10 and 11 is supplied with direct current traction to the input of locomotive amplifier 12 (Fig. 1), and with alternating current traction to the input of locomotive filter 23 (Fig. 2), the output of which is connected to the input of the locomotive amplifier 12.

From the output of the locomotive amplifier 12, the signal is fed to the input of the locomotive decoder 13, which determines the type of code combination and controls the operation of the electro-pneumatic valve and the locomotive traffic light.

Monitoring the functioning of the equipment is carried out by removing signals from the inputs and outputs of the receiving coils, amplifier and decoder using the connection unit 14.

The following values are taken:

1) supply voltage of relay equipment between terminals K5 and K4;

2) the voltage at the frequency of the signal current at the input of the amplifier is between the terminals K2 and K1 (for autonomous traction, this parameter reflects the total electromotive force (EMF) induced in the locomotive receiving coils);

3) the total voltage at the signal current frequency induced in the locomotive coils - at the input of the locomotive filter (for the case of AC traction);

4) the duration of the pulses at the output of the locomotive amplifier - terminal K-6 relative to K4 (a high signal level indicates the presence of a pulse, low - a pause);

5) the signal level on the green light lamp of a locomotive traffic light - terminal K3-7 relative to K4 (high level - lamp burning, low - the lamp is off);

6) the signal level on the yellow lamp of a locomotive traffic light - terminal K3-6 relative to K4 (high level - lamp burning, low - the lamp is off);

7) the signal level on the red and yellow lamp of a locomotive traffic light - terminal K3-4 relative to K4 (high level - lamp burning, low - the lamp is off);

8) the signal level on the red light lamp of a locomotive traffic light - terminal K3-3 relative to K4 (high level - lamp burning, low - the lamp is off);

9) the signal level on the white light lamp of a locomotive traffic light is terminal K3-2 relative to K4 (high level - lamp burning, low - lamp off).

With AC traction, a second connection unit 24 is additionally introduced, providing the removal of signal parameters from the output of the locomotive filter 23.

These signals are fed to the input of the control and analysis unit 15, which, when the locomotive equipment is functioning, evaluates the compliance with the norm of the parameters of the numerical code at the output of the locomotive amplifier 12 and monitors the operation of the locomotive decoder 13. The signal parameters at the output of the locomotive filter 23 are additionally monitored during AC traction.

Monitoring the operation of the locomotive amplifier 12 is to assess the duration of the distortion (the difference between the duration of the applied pulse or pause and the duration of the pulse or pause at the output of the amplifier is K6). If the deviation is greater than 50 ms, then the parameters of the locomotive amplifier 12 do not correspond to the norm and its adjustment is required at the repair and maintenance station.

The functioning of the locomotive decoder 13 is monitored as follows: the switching time of the lights of the locomotive traffic light is assessed when changing the type of code combination to be applied (the difference between the times when a new type of code combination is input from the output of the locomotive amplifier 12 and the lights of the locomotive traffic light are turned off are low-level signals 5-9) , which allows to evaluate the decryption circuit by the deceleration parameters of the relay of correspondence CP of the locomotive decoder 13 to the norm (5.0-6.0 s).

If the switching time of the lights of the locomotive traffic light does not correspond to the norm, then the locomotive decoder 13 is also subject to adjustment in the conditions of the control and repair point.

The device also allows you to evaluate the asymmetry of locomotive coils. For this, the switching unit 7 transmits from the unit for generating test signals 3 sequentially first to the first inductor 8, and then to the second inductor 9, the modulated current of a given value and frequency. The control and analysis unit 15 through the first connection unit 14 fixes two corresponding voltage values of the analog signals at the output of the first and second receiving coils 10 and 11. The asymmetry coefficient is determined in percentage terms as the ratio of the difference between the obtained values to their sum. This parameter is also transmitted to the input of the report generation unit 4.

It is also possible to evaluate the asymmetry of locomotive receiving coils by measuring the voltage induced in the first and second receiving coils 10 and 11, when the first and second inductors 8 and 9 are connected in series or in parallel with the same current in them and its frequency. At the same time, the sum is measured with successive switching on, and with the parallel switching on - the difference of induced EMF. In this case, the asymmetry coefficient is taken equal to the ratio of the measured value made when the first and second inductors 8 and 9 are turned on in parallel to the same parameter when they are turned on in series. The second implementation does not allow you to specify the receiving coil, the EMF in which is less than the nominal allowable value for a given height of its suspension.

Determination of the sensitivity of on-board equipment ALSN 6 is carried out in automatic mode. At the same time, the shaper of test signals 3 delivers a variable current from 0 to 3 A with a step of 0.1 A and a frequency corresponding to the thrust type specified by the operator from the data input unit 1 to the first and second inductors 8 and 9.

The control and analysis unit 15 captures the moment when the locomotive equipment begins to generate a signal of the locomotive traffic light and transmits it to the report generation unit 4, which fixes the amount of current in the inductors.

The report generating unit 4 represents the received information in a form convenient for the operator to perceive on the display unit 17 and a form convenient for subsequent processing for the memory unit 5. The memory unit 5 is a removable medium that allows further analysis of the stored data array.

To ensure remote operation of the device, a wireless communication channel 18 is formed, consisting of the first and second transceivers 19 and 21 and a communication line 20 and connected to the operator's workstation 22. The operator can send commands to the control unit 2 via the wireless communication channel 18. Using the operator's workstation 22 in turn, the results of the verification from the report generation unit 4 via the wireless communication channel 18 are transmitted in real time to the operator AWP 22.

The presence of distinctive features in the claimed invention allows us to conclude that it meets the condition of patentability "novelty".

The criterion of "industrial applicability" of the claimed device is confirmed by its potential effectiveness in comparison with the prototype. The device allows you to expand the capabilities of technical diagnostics of locomotive relay equipment ALSN, allowing you to point to the unit (amplifier or decoder), the parameters of which do not correspond to the norm.

The proposed device can be used for the diagnosis of on-board equipment ALSN on all types of locomotives.

Claims (3)

1. Device for diagnosing relay locomotive equipment ALSN, comprising a data input unit, a control unit, a test signal generation unit, a report generating unit, a memory unit and on-board equipment ALS as part of locomotive receiving coils, a locomotive amplifier and a locomotive decoder, characterized in that it contains the first and second inductors, the first connection unit, the control and analysis unit, the forecast unit, and the first inductor and the second inductor are switched on to the outputs of the test signal generation unit, the current direction in which changes depending on the type of test being performed, while the first inductor is inductively coupled with the first receiving coil, and the second inductor with the second receiving coil, the first connection device is connected to the on-board equipment of the automatic locomotive alarm system, which allows to increase the depth of diagnostics of the set of on-board equipment by reading the signals from the inputs and outputs of each of its blocks, their outputs and connected to the control and analysis unit, which is connected with its outputs to the report generation unit and the forecast unit, while the outputs of the forecast unit are connected to the corresponding inputs of the report generation unit. 2. The device according to p. 1, characterized in that with the electric traction of alternating current, the on-board equipment of the ALS additionally contains a locomotive filter, while a second connection block is additionally introduced, connected to the outputs of the locomotive filter with its inputs and connected to the control unit with its outputs and analysis. 3. The device according to any one of paragraphs. 1, 2, characterized in that an additional wireless communication channel is introduced, consisting of the first and second transceivers and a communication line and connected to the operator’s workstation, while the input of the first transceiver is connected to the corresponding output of the report generation unit, and connected to the control unit by its output.

Images