CN118877052A - 25Hz track circuit monitoring method, device, electronic device and storage medium - Google Patents

Abstract

The present invention discloses a monitoring method, device, electronic device and storage medium for a 25Hz track circuit. The method includes: obtaining a track power signal, a local power signal and a transformer voltage signal; determining the track state according to the phase and/or frequency of the track power signal and the local power signal; if the track state is an occupied state, determining the circuit state of the track circuit according to the transformer voltage signal; being able to accurately identify the track state and the circuit state, solving the problem of low accuracy in track state monitoring, and improving the intelligence level of the 25Hz track circuit.

Description

25Hz track circuit monitoring method, device, electronic device and storage medium

Technical Field

The present invention relates to the field of railway traffic management, and in particular to a monitoring method, device, electronic equipment and storage medium for a 25 Hz track circuit.

Background Art

As an important equipment in the field of railway track circuits, the 25Hz track circuit uses rails as conductors to transmit information to achieve track status monitoring.

At present, the 25Hz track circuit usually determines the track status by the attraction and fall of the binary two-position relay. However, when the transformer in the track circuit fails, it may also cause the binary two-position relay to be attracted, resulting in inaccurate track status monitoring results.

Summary of the invention

In order to solve the above problems, the inventors have made the present invention, and through specific implementation methods, provide a monitoring method, device, electronic device and storage medium for a 25Hz track circuit.

In a first aspect, an embodiment of the present invention provides a 25 Hz track circuit monitoring method, comprising:

Obtain track power supply signal, local power supply signal and transformer voltage signal;

Determining the track state according to the phase and/or frequency of the track power signal and the local power signal;

If the track state is an occupied state, the circuit state of the track circuit is determined according to the transformer voltage signal.

In a second aspect, an embodiment of the present invention provides a monitoring device for a 25 Hz track circuit, comprising:

A signal acquisition module, used to acquire track power supply signals, local power supply signals and transformer voltage signals;

A track state determination module, used to determine the track state according to the phase and/or frequency of the track power signal and the local power signal;

The circuit state judgment module is used to determine the circuit state of the track circuit according to the transformer voltage signal if the track state is an occupied state.

The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

By acquiring the track power signal, the local power signal and the transformer voltage signal; determining the track state according to the phase and/or frequency of the track power signal and the local power signal; if the track state is in the occupied state, determining the circuit state of the track circuit according to the transformer voltage signal; being able to accurately identify the track state and the circuit state, solving the problem of low accuracy in track state monitoring, and at the same time improving the intelligence level of the 25Hz track circuit.

Other features and advantages of the present invention will be described in the following description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

FIG1 is a flow chart of a method according to an embodiment of the present invention;

FIG2 is a schematic diagram of a 25 Hz track circuit in the prior art;

FIG. 3 is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

DETAILED DESCRIPTION

The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

As shown in the 25Hz railway circuit in Figure 2, the indoor power supply panel supplies the track power supply and the local power supply respectively. The track power supply is supplied from the indoor, supplied to the outdoor through cables, and then sent back to the indoor through the power transformer BG25, choke transformer BE25, rails, choke transformer BE25, power transformer BG25 at the receiving end, and cables, and then passed through the lightning protection unit, protection box and the track coil of the binary two-position relay; the 25Hz power supply of the local coil is supplied from the indoor. When the track coil and the local coil meet the specified phase and frequency requirements, the binary two-position relay is attracted, otherwise it falls. The binary two-position relay is attracted to indicate that the track circuit is idle, and it falls to indicate that the track circuit is occupied or faulty.

When one or more of the power transformer BG25 and the choke transformer BE25 at the receiving end and the choke transformer BE25 and the power transformer BG25 at the sending end fail, the phase and frequency of the track power supply will change, which will cause the binary two-position relay to be pulled in when the track circuit fails.

Therefore, there is a problem of low accuracy when using the suction and drop of a binary two-position relay to judge the state of the track.

In order to solve the problems existing in the prior art, an embodiment of the present invention provides a monitoring method, device, electronic device and storage medium for a 25 Hz track circuit.

An embodiment of the present invention provides a 25 Hz track circuit monitoring method, the process of which is shown in FIG1 and includes the following steps:

Step S10: Acquire the track power supply signal, the local power supply signal and the transformer voltage signal.

Among them, the track power supply signal is output by the indoor power supply panel, and is processed by the power transformer at the sending end, the choke transformer at the sending end, the power transformer at the receiving end, and the choke transformer at the receiving end in sequence; the local power supply signal is output by the indoor power supply panel; the transformer voltage signal can be an electrical signal collected at a single or multiple transformer positions in the track circuit.

Step S20: determining the track state according to the phase and/or frequency of the track power signal and the local power signal.

Among them, the track state includes an idle state and an occupied state; when the track is in an idle state, the phase difference between the track power signal and the local power signal is less than the phase difference threshold, and the frequency difference between the track power signal and the local power signal is less than the frequency difference threshold. The phase difference threshold and the frequency difference threshold are preset according to the actual track circuit.

Step S30: If the track state is an occupied state, the circuit state of the track circuit is determined according to the transformer voltage signal.

Among them, the circuit state of the track circuit includes a fault state and a normal state; when the circuit state of the track circuit is a fault state, the voltage value of the transformer voltage signal is within the working voltage range of the corresponding transformer, and the working voltage range is the working voltage of the transformer when the circuit state of the track circuit is a normal state.

In the above method of this embodiment, the 25Hz track circuit includes a power transformer at the power transmission end, a choke transformer at the power transmission end, a power transformer at the power reception end, and a choke transformer at the power reception end. The input end and the output end of the power transformer at the power transmission end are respectively connected to the indoor power supply and the input end of the choke transformer at the power transmission end, and the output end of the choke transformer at the power reception end is connected to the input end of the choke transformer at the power reception end through the track.

The step of obtaining the track power supply signal comprises the following steps:

The voltage signal output by the choke transformer at the power receiving end is obtained; and the voltage signal output by the choke transformer at the power receiving end is determined as a track power supply signal.

Specifically, after obtaining the voltage signal output by the choke transformer at the receiving end, the voltage signal output by the choke transformer at the receiving end is determined as a track power supply signal, and the track state is determined according to the phase and/or frequency of the voltage signal output by the choke transformer at the receiving end.

Exemplarily, when the frequency difference between the output voltage signal of the choke transformer at the power receiving end and the local power supply signal is less than a preset threshold, it is confirmed that the track state is an occupied state.

In the above method of this embodiment, step S20 may include the following steps:

Phase and/or frequency, determining the orbital state, comprising the following steps:

When the phase difference between the track power signal and the local power signal is less than the phase difference threshold, the track state of the track circuit is determined to be an idle state; or, when the frequency difference between the track power signal and the local power signal is less than the frequency difference threshold, the track state of the track circuit is determined to be an idle state; or, when the phase difference between the track power signal and the local power signal is less than the phase difference threshold, and the frequency difference between the track power signal and the local power signal is less than the frequency difference threshold, the track state of the track circuit is determined to be an idle state.

In another embodiment, when the phase difference between the track power signal and the local power signal is greater than a phase difference threshold, it is determined that the track circuit is in an occupied state.

In another embodiment, when the frequency difference between the track power signal and the local power signal is greater than a frequency difference threshold, the track state of the track circuit is determined to be an occupied state.

In another embodiment, when the phase difference between the track power signal and the local power signal is greater than a phase difference threshold, and the frequency difference between the track power signal and the local power signal is greater than a frequency difference threshold, the track state of the track circuit is determined to be an occupied state.

In the above method of this embodiment, step S30 may include the following steps:

If the track state is an occupied state, and the voltage value of the transformer voltage signal is outside the working voltage range, it is determined that the track circuit is in a fault state.

In the above method of this embodiment, step S30 may include the following steps: if the track state is an occupied state, and the transformer voltage signal at the power transmission end transformer is outside the first working voltage interval, then determining that the track circuit is in a fault state, and the fault position of the track circuit is in the power transmission end transformer;

If the track state is an occupied state, and the transformer voltage signal at the power transformer at the power transmission end is outside the first working voltage interval, it is determined that the track circuit is in a fault state, and the fault position of the track circuit is at the power transformer at the power transmission end;

If the track state is an occupied state, and the transformer voltage signal at the receiving-end power transformer is outside the third working voltage interval, it is determined that the track circuit is in a fault state, and the fault position of the track circuit is at the receiving-end power transformer;

If the track state is an occupied state, and the transformer voltage signal at the receiving-end choke transformer is outside the fourth operating voltage interval, it is determined that the track circuit is in a fault state, and the fault location of the track circuit is at the receiving-end choke transformer.

The above method of this embodiment may further include the following steps:

The track status and circuit status are sent to an external system via wireless communication.

Among them, the external system may include a computer interlocking system and a railway signal centralized monitoring system.

The monitoring method for a 25 Hz track circuit provided in an embodiment of the present invention obtains a track power signal, a local power signal and a transformer voltage signal; determines the track state according to the phase and/or frequency of the track power signal and the local power signal; if the track state is an occupied state, determines the circuit state of the track circuit according to the transformer voltage signal; can accurately identify the track state and the circuit state, solve the problem of low accuracy in track state monitoring, and at the same time improve the intelligence level of the 25 Hz track circuit.

Those skilled in the art can change the above sequence without departing from the protection scope of the present disclosure.

Another embodiment of the present invention provides a monitoring device for a 25 Hz track circuit, comprising:

A signal acquisition module, used to acquire track power supply signals, local power supply signals and transformer voltage signals;

A track state determination module, used to determine the track state according to the phase and/or frequency of the track power signal and the local power signal;

The circuit state judgment module is used to determine the circuit state of the track circuit according to the transformer voltage signal if the track state is an occupied state.

Regarding the system in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

Based on the same inventive concept, an embodiment of the present invention further provides an electronic device, the structure of which is shown in FIG2 , including: a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the aforementioned 25Hz track circuit monitoring method when executing the computer program.

Based on the same inventive concept, an embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed by a processor, the aforementioned 25 Hz track circuit monitoring method is implemented.

Any modifications, supplements and equivalent substitutions made within the scope of the principles of the present invention shall still fall within the patent scope of the present invention.

Unless otherwise stated, the "connection" mentioned above refers to a logical relationship of current transmission, and does not necessarily mean a direct electrical connection. At the same time, "first", "second", etc. do not indicate a sequence, but are only used to identify related units, devices, etc.

The present invention is not limited to the above voltage levels, which are merely voltage levels in the embodiments.

Claims (9)

1. A method for monitoring a 25 Hz track circuit, comprising the following steps: Obtain track power supply signal, local power supply signal and transformer voltage signal; Determining the track state according to the phase and/or frequency of the track power signal and the local power signal; If the track state is an occupied state, the circuit state of the track circuit is determined according to the transformer voltage signal. 2. The method according to claim 1, characterized in that the 25Hz track circuit comprises a power transformer at the power transmission end, a choke transformer at the power transmission end, a power transformer at the power reception end and a choke transformer at the power reception end, the input end and the output end of the power transformer at the power transmission end are respectively connected to the indoor power supply and the input end of the choke transformer at the power transmission end, and the output end of the choke transformer at the power reception end is connected to the input end of the choke transformer at the power reception end through the track; The step of obtaining the track power supply signal comprises the following steps: Obtaining a voltage signal output by the choke transformer at the power receiving end; And the voltage signal output by the choke transformer at the power receiving end is determined as the track power supply signal. 3. The method according to claim 2, characterized in that the step of determining the track state according to the phase and/or frequency of the track power signal and the local power signal comprises the following steps: When the phase difference between the track power signal and the local power signal is less than a phase difference threshold, determining that the track state of the track circuit is an idle state; or, When the frequency difference between the track power signal and the local power signal is less than a frequency difference threshold, determining that the track state of the track circuit is an idle state; or, When the phase difference between the track power signal and the local power signal is less than a phase difference threshold, and the frequency difference between the track power signal and the local power signal is less than a frequency difference threshold, it is determined that the track state of the track circuit is an idle state. 4. The method according to claim 3, characterized in that, if the track state is in an occupied state, determining the circuit state of the track circuit according to the transformer voltage signal comprises the following steps: If the track state is an occupied state, and the voltage value of the transformer voltage signal is outside the working voltage range, it is determined that the track circuit is in a fault state. 5. The method according to claim 4, characterized in that, if the track state is in an occupied state, determining the circuit state of the track circuit according to the transformer voltage signal comprises the following steps: If the track state is an occupied state, and the transformer voltage signal at the power transmission end transformer is outside the first working voltage interval, it is determined that the track circuit is in a fault state, and the fault position of the track circuit is at the power transmission end transformer; If the track state is an occupied state, and the transformer voltage signal at the power transformer at the power transmission end is outside the first working voltage interval, it is determined that the track circuit is in a fault state, and the fault position of the track circuit is at the power transformer at the power transmission end; If the track state is an occupied state, and the transformer voltage signal at the receiving-end power transformer is outside the third working voltage interval, it is determined that the track circuit is in a fault state, and the fault position of the track circuit is at the receiving-end power transformer; If the track state is an occupied state, and the transformer voltage signal at the receiving-end choke transformer is outside the fourth operating voltage interval, it is determined that the track circuit is in a fault state, and the fault location of the track circuit is at the receiving-end choke transformer. 6. The method according to claim 5, characterized in that the method further comprises the following steps: The track status and circuit status are sent to an external system via wireless communication. 7. A monitoring device for a 25Hz track circuit, comprising: A signal acquisition module, used to acquire track power supply signals, local power supply signals and transformer voltage signals; A track state determination module, used to determine the track state according to the phase and/or frequency of the track power signal and the local power signal; The circuit state judgment module is used to determine the circuit state of the track circuit according to the transformer voltage signal if the track state is an occupied state. 8. An electronic device, characterized in that it comprises: a memory, a processor, and a computer program stored in the memory and running on the processor, wherein when the processor executes the computer program, the monitoring method of the 25 Hz track circuit described in any one of claims 1 to 6 is implemented. 9. A computer storage medium, characterized in that computer executable instructions are stored in the computer storage medium, and when the computer executable instructions are executed, the monitoring method of the 25 Hz track circuit described in any one of claims 1 to 6 is implemented.