Operation equipment monitoring method and system based on infrasonic waves

Abstract

The invention discloses an infrasonic wave-based operation equipment monitoring method and system, and the method comprises the steps: obtaining the operation speed information of operation equipment in a pipeline in real time, and the operation equipment comprises a pipe cleaner and an inner detector which operate in the pipeline; encoding the running speed information to obtain a target infrasonic wave frequency; generating infrasonic waves based on the target infrasonic wave frequency, and emitting the infrasonic waves; receiving an infrasonic wave signal of the infrasonic wave propagating along the pipeline wall at a preset detection point on the outer wall of the pipeline; decoding the infrasonic wave signal to obtain decoding speed information; and obtaining the operation state of the operation equipment based on the decoding speed information so as to reflect the detection operation risk of the operation equipment. According to the method, the characteristic that the infrasonic waves are transmitted on the steel pipe wall is utilized, long-distance communication between the operation equipment in the pipeline and the equipment outside the pipeline is achieved, the operation speed of the operation equipment in the pipeline is obtained in real time, the detection efficiency in the pipeline is effectively improved, and the risks of pipe cleaning and internal detection work are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of transport pipeline detection, and in particular to a method and system for monitoring operating equipment based on infrasound waves. Background Art

[0002] Pipeline transportation of natural gas is currently recognized by the industry as the most economical, efficient and safe way of transportation. However, in order to ensure the safe, stable and efficient operation of gas pipelines, regular maintenance operations such as pigging and internal inspection have become necessary operating procedures. These pigging and internal inspection operations are not only related to the normal operation of the pipeline, but also involve the safety guarantee during the transportation of natural gas.

[0003] In pipeline cleaning work, there are great risks due to the danger of natural gas itself and possible blockage of operating equipment. Therefore, these risks must be identified and controlled to ensure the smooth progress of pipeline cleaning and internal inspection operations.

[0004] One of the key factors that determines the success of pipeline cleaning and internal inspection is the operating speed of the equipment. The cleaning (internal inspection) effect of the equipment is best at a reasonable speed. Too high or too low speed will have an adverse effect on the cleaning and internal inspection operations, and may even lead to serious safety hazards. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present application provide a method, system and system for monitoring operating equipment based on infrasound.

[0006] In the first aspect, in order to solve the above technical problems, the present application provides a method for monitoring running equipment based on infrasound, comprising:

[0007] Obtain real-time running speed information of the running equipment when it is running in the pipeline;

[0008] Encoding the running speed information to obtain a target infrasonic wave frequency;

[0009] generating an infrasound wave based on the target infrasound wave frequency, and emitting the infrasound wave;

[0010] Receiving the infrasound wave signal propagating along the pipeline wall at a preset detection point on the outer wall of the pipeline;

[0011] Decoding the infrasound signal to obtain decoding speed information;

[0012] The operating status of the operating device is obtained based on the decoding speed information to reflect the detection operation risk of the operating device.

[0013] The beneficial effects are:

[0014] In the technical solution provided in the embodiment of the present application, during the operation of the running equipment in the pipeline, the running speed information of the running equipment is obtained in real time, the running speed information is encoded and processed to obtain the target infrasound frequency, and infrasound is generated based on the target infrasound frequency, and then the infrasound is emitted to propagate along the pipeline wall, so that the characteristics of infrasound propagating on the steel pipe wall are utilized to realize long-distance communication between the running equipment in the pipeline and the equipment outside the pipeline, breaking through the limitation that the existing technology cannot realize long-distance communication between the running equipment in the pipeline and the outside of the pipeline. Afterwards, at the detection point preset on the outer wall of the pipeline, the infrasound signal of the received infrasound propagating along the pipeline wall is decoded and processed to obtain the decoding speed information, and the running state of the running equipment can be obtained based on the decoding speed information to reflect the detection operation risk of the running equipment. In this way, through infrasound communication, the running speed of the running equipment in the pipeline can be obtained in real time, effectively improving the detection efficiency in the pipeline and reducing labor costs. It is also possible to monitor the operating status of the equipment in the pipeline in real time by decoding the speed information, and promptly discover and handle abnormal situations such as blockage of the running equipment, so as to reduce the risks of pipeline cleaning and internal inspection operations, reduce the incidence of pipeline accidents, and ensure the safety, stability and efficiency of pipeline cleaning and internal inspection operations.

[0015] In a second aspect, the present invention provides a system for monitoring running equipment based on infrasound, comprising a speed sensor, an infrasound structure, a receiver and a monitoring system;

[0016] The speed sensor and the infrasonic wave structure are arranged on the running device, and the speed sensor is connected to the infrasonic wave structure, and is used to transmit the running speed information acquired in real time to the infrasonic wave structure; the infrasonic wave structure is used to encode the running speed information to obtain a target infrasonic wave frequency; generate infrasonic waves based on the target infrasonic wave frequency, and emit the infrasonic waves;

[0017] The receiver is arranged at a detection point preset on the outer wall of the pipeline, and is used to receive the infrasound wave signal propagating along the pipeline wall, and decode the infrasound wave signal to obtain decoding speed information;

[0018] The monitoring system is connected to the receiver, and is used to receive the decoding speed information for display, and obtain the operating status of the operating equipment based on the decoding speed information to reflect the detection operation risk of the operating equipment.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 is a flow chart of a method for monitoring operating equipment based on infrasound waves, shown in an exemplary embodiment of the present application;

[0022] Figure 2 is a structural schematic diagram of an operating equipment monitoring system based on infrasound waves shown in an exemplary embodiment of the present application;

[0023] Figure 3 It is a structural diagram of a computer system suitable for implementing an electronic device of an embodiment of the present application. DETAILED DESCRIPTION

[0024] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0025] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0026] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0027] The term "multiple" as used in this application refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0028] In order to solve the existing natural gas pipeline cleaning and internal inspection operations, there are great safety risks due to the danger of natural gas and the blockage of operating equipment such as pipe cleaners and internal detectors. Especially in pipelines with low flow and many easy blockage points, the operating speed and state of the operating equipment are difficult to monitor in real time, which affects the smooth progress of the cleaning and internal inspection operations. The embodiments of this application propose a method and device for monitoring operating equipment based on infrasound waves, an electronic device, and a computer-readable storage medium. It mainly involves the monitoring technology of operating equipment based on infrasound waves included in the natural gas transportation pipeline detection technology. These embodiments will be described in detail below.

[0029] First see Figure 1 , Figure 1 FIG. 1 is a flow chart of a method for monitoring a running device based on infrasound waves, which is shown in an exemplary embodiment of the present application. Figure 1 As shown, in an exemplary embodiment, the infrasound-based operating equipment monitoring method may include steps S101 to S106, which are described in detail as follows:

[0030] Step S101, obtaining in real time the running speed information of the running equipment when it runs in the pipeline.

[0031] Step S102, encoding the running speed information to obtain the target infrasonic frequency.

[0032] Step S103, generating infrasound waves based on the target infrasound wave frequency, and emitting the infrasound waves.

[0033] Step S104: receiving an infrasound wave signal propagating along the pipe wall at a preset detection point on the outer wall of the pipe.

[0034] Step S105, decoding the infrasound signal to obtain decoding speed information.

[0035] Step S106, obtaining the operating status of the operating equipment based on the decoding speed information to reflect the detection operation risk of the operating equipment.

[0036] In order to grasp the operating status of operating equipment such as pipe cleaners and internal detectors in real time, this embodiment first obtains the operating speed information of the operating equipment in real time. In order to overcome the limitation of the prior art that the operating equipment in the pipeline cannot communicate with the outside of the pipeline over long distances, this embodiment uses the characteristics of infrasound propagation on the steel pipe wall, encodes the operating speed information to obtain a target infrasound frequency, generates infrasound based on the target infrasound frequency, and then transmits the infrasound to propagate along the pipeline wall, so that the preset detection point on the outer wall of the pipeline can receive the infrasound signal propagating along the pipeline wall, and then decodes the infrasound signal to obtain the decoded speed information, and obtains the operating status of the operating equipment based on the decoded speed information, and displays the operating speed information and operating status of the operating equipment in real time to reflect the detection operation risk of the operating equipment.

[0037] As can be seen from the above, in the method provided in this embodiment, on the one hand, the characteristics of infrasound propagating on the steel pipe wall are used to realize long-distance communication between the equipment running in the pipeline and the equipment outside the pipeline, breaking through the limitation of the existing technology that the equipment running in the pipeline cannot realize long-distance communication with the outside of the pipeline, and ensuring the reliability and accuracy of information transmission. On the other hand, the operating speed of the equipment running in the pipeline can be obtained in real time through infrasound communication, effectively improving the efficiency of pipeline detection and reducing labor costs. It is also possible to monitor the operating status of the equipment running in the pipeline in real time by decoding the speed information, so as to timely discover and deal with abnormal situations such as blocking of the operating equipment, so as to reduce the risks of cleaning and internal detection operations, reduce the incidence of pipeline accidents, and ensure the safety, stability and efficiency of cleaning and internal detection operations.

[0038] In an exemplary embodiment provided by the present application, the infrasound wave corresponding to the running speed information is obtained by using the correspondence between the preset speed information and the infrasound wave frequency, and the specific steps may include:

[0039] Obtaining the correspondence between preset speed information and infrasonic frequency;

[0040] By using frequency modulation coding technology, the running speed information is mapped to the corresponding infrasonic frequency based on the corresponding relationship to obtain the target infrasonic frequency.

[0041] In this embodiment, the running speed information of the running device can be encoded into infrasound waves of different frequencies. The specific encoding method can adopt frequency modulation (FM) encoding technology to map the running speed information to the corresponding infrasound wave frequency. The target infrasound wave frequency corresponding to the running speed information is obtained through the corresponding relationship between the preset speed information and the infrasound wave frequency.

[0042] In another exemplary embodiment, the encoded infrasound wave is generated by an acoustic wave transducer, so the step of obtaining the infrasound wave based on the target infrasound wave frequency may specifically include:

[0043] generating a target voltage signal based on the target infrasound frequency;

[0044] Performing power amplification processing on the target voltage signal to obtain an amplified target voltage signal;

[0045] The amplified target voltage signal is input into the acoustic wave transducer to generate infrasound waves, and the infrasound waves are emitted.

[0046] In this embodiment, the infrasound oscillator generates an electrical signal below 20 Hz as a target voltage signal according to the set frequency parameter, i.e., the target infrasound frequency. The generated target voltage signal is amplified by the power amplifier to enhance the signal strength, ensuring that the generated infrasound can propagate a long distance in the pipeline. The amplified target voltage signal is input into the acoustic transducer to generate infrasound, and the emitted infrasound propagates along the pipeline wall. Due to the low-frequency characteristics of infrasound, it has a long propagation distance and small energy attenuation, and can be effectively transmitted to the outside of the pipeline.

[0047] In an exemplary embodiment provided by the present application, an acoustic sensor is provided at a preset detection point on the outer wall of the pipeline to receive an infrasonic wave signal propagating along the pipeline wall. The specific steps may include:

[0048] After being emitted, the infrasound wave propagates along the outer wall of the pipeline, and the sensor signal detected by the acoustic wave sensor is obtained in real time at the preset detection point on the outer wall of the pipeline;

[0049] The sensor signal is filtered and amplified to extract the infrasound signal corresponding to the infrasound wave.

[0050] Due to pipeline construction requirements, after setting the specified underground pipeline length, the pipeline for transporting natural gas will plan the exposed pipeline part to facilitate inspection and maintenance operations. Therefore, in this embodiment, a preset inspection point is set on the outer wall of the pipeline at the exposed part, and an acoustic wave sensor is installed to detect the vibration signal formed by the propagation of infrasound along the pipe wall as the sensor signal. The received signal is then filtered and amplified to eliminate noise and interference and extract an effective infrasound signal.

[0051] In another exemplary embodiment, the specific steps of decoding the infrasound wave signal to obtain the decoding speed information may include:

[0052] The infrasound signal is decoded and processed using a preset decoding algorithm to obtain decoding speed information. The preset decoding algorithm is a reverse technology of the frequency modulation coding technology.

[0053] The above-mentioned embodiment provided by the present application obtains the infrasonic wave signal of the infrasonic wave propagating along the pipeline wall through the acoustic wave sensor, and then uses a preset decoding algorithm (the inverse technology of the frequency modulation coding technology) to convert the infrasonic wave signals of different frequencies into the corresponding operating equipment speed information, thereby realizing long-distance communication between the operating equipment in the pipeline and the equipment outside the pipeline, obtaining the operating speed of the operating equipment in the pipeline in real time, effectively improving the detection efficiency in the pipeline, and reducing labor costs.

[0054] See also Figure 2 , Figure 2 FIG. 1 is a schematic diagram of a structure of an operating equipment monitoring system based on infrasound waves, shown in an exemplary embodiment of the present application. Figure 2 As shown, the infrasound-based operating equipment monitoring system includes a speed sensor 210 , an infrasound structure 220 , a receiver 230 and a monitoring system 240 .

[0055] The speed sensor 210 and the infrasonic wave structure 220 are arranged on the running equipment. The speed sensor 210 is connected to the infrasonic wave structure 220 and is used to transmit the running speed information acquired in real time to the infrasonic wave structure 220; the infrasonic wave structure 220 is used to encode the running speed information to obtain the target infrasonic wave frequency; generate infrasonic waves based on the target infrasonic wave frequency, and emit infrasonic waves.

[0056] The receiver 230 is disposed at a detection point on the outer wall of the exposed pipeline in the pipeline line, and is used to receive the infrasound wave signal propagating along the pipeline wall, and decode the infrasound wave signal to obtain decoding speed information.

[0057] The monitoring system 240 is connected to the receiver for receiving the decoding speed information for display, and obtaining the operating status of the operating equipment based on the decoding speed information to reflect the detection operation risk of the operating equipment.

[0058] In another exemplary embodiment provided by the present application, the infrasonic structure includes an encoder, an infrasonic oscillator, an acoustic wave transducer and a transmitter, wherein the encoder is used to obtain the correspondence between preset speed information and infrasonic frequency; the operating speed information is mapped to the corresponding infrasonic frequency based on the correspondence using frequency modulation coding technology to obtain a target infrasonic frequency; the infrasonic oscillator is connected to the encoder to generate a target voltage signal based on the target infrasonic frequency; the target voltage signal is power amplified to obtain an amplified target voltage signal, and the amplified target voltage signal is input into the acoustic wave transducer; the acoustic wave transducer is connected to the transmitter to generate infrasonic waves based on the amplified target voltage signal, and the infrasonic waves are emitted by the transmitter.

[0059] The receiver includes an acoustic sensor and a decoder. The acoustic sensor is set at a detection point on the outer wall of the exposed pipeline in the pipeline line and is connected to the decoder. The acoustic sensor detects the vibration generated by the transmission of the infrasound wave along the outer wall of the pipeline in real time to obtain a sensor signal, and performs filtering and amplification processing on the sensor signal to extract the infrasound signal corresponding to the infrasound wave; the decoder decodes the infrasound signal using a preset decoding algorithm to obtain decoding speed information. The preset decoding algorithm is a reverse technology of the frequency modulation coding technology.

[0060] It can be seen that the infrasound-based operating equipment monitoring system provided in the above embodiment applies the infrasound-based operating equipment monitoring method provided in this application. On the one hand, the characteristics of infrasound propagating on the steel pipe wall are used to realize long-distance communication between the operating equipment in the pipeline and the equipment outside the pipeline, breaking through the limitation that the existing technology cannot realize long-distance communication between the operating equipment in the pipeline and the outside of the pipeline, and ensuring the reliability and accuracy of information transmission. On the other hand, the operating speed of the operating equipment in the pipeline can be obtained in real time through infrasound communication, which effectively improves the efficiency of pipeline detection and reduces labor costs. It is also possible to monitor the operating status of the operating equipment in the pipeline in real time by decoding speed information, so as to timely discover and handle abnormal situations such as blocking of the operating equipment, so as to reduce the risks of cleaning and internal detection operations, reduce the incidence of pipeline accidents, and ensure the safety, stability and efficiency of cleaning and internal detection operations.

[0061] It should be noted that the infrasound-based operating equipment monitoring system provided in the above embodiment and the infrasound-based operating equipment monitoring method provided in the above embodiment belong to the same concept, and the specific way in which each structure performs the operation has been described in detail in the method embodiment.

[0062] An embodiment of the present application also provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, and when the one or more programs are executed by one or more processors, the electronic device implements the infrasound-based operating equipment monitoring method provided in the above-mentioned embodiments.

[0063] Figure 3 The structure diagram of the computer system suitable for implementing the electronic device of the embodiment of the present application is shown. It should be noted that: Figure 3 The computer system 300 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0064] like Figure 3As shown, the computer system 300 includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 302 or the program loaded from the storage part 308 to the random access memory (RAM) 303, such as executing the method in the above embodiment. In the RAM 303, various programs and data required for system operation are also stored. The CPU 301, ROM 302 and RAM 303 are connected to each other through a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0065] The following components are connected to the I / O interface 305: an input section 306 including a keyboard, a mouse, etc.; an output section 307 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to the I / O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 310 as needed so that a computer program read therefrom is installed into the storage section 308 as needed.

[0066] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 309, and / or installed from a removable medium 311. When the computer program is executed by a central processing unit (CPU) 301, various functions defined in the system of the present application are executed.

[0067] It should be noted that the computer-readable medium shown in the embodiment of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a computer-readable computer program is carried. This propagated data signal can take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. A computer program contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0068] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0069] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0070] Another aspect of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned infrasound-based operating equipment monitoring method is implemented. The computer-readable storage medium may be included in the electronic device described in the above embodiment, or may exist independently without being assembled into the electronic device.

[0071] Another aspect of the present application also provides a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. A processor of a computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the infrasound-based operating equipment monitoring method provided in each of the above embodiments.

[0072] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for monitoring running equipment based on infrasound, characterized in that: The operating device includes a pig and an internal detector running in a pipeline, and the method includes: Acquire the running speed information of the running equipment in the pipeline in real time; Encoding the running speed information to obtain a target infrasonic wave frequency; generating an infrasound wave based on the target infrasound wave frequency, and emitting the infrasound wave; Receiving the infrasound wave signal propagating along the pipeline wall at a preset detection point on the outer wall of the pipeline; Decoding the infrasound signal to obtain decoding speed information; The operating status of the operating device is obtained based on the decoding speed information to reflect the detection operation risk of the operating device.

2. The method according to claim 1, characterized in that The encoding process of the running speed information to obtain the target infrasound frequency includes: Obtaining the correspondence between preset speed information and infrasonic frequency; The operating speed information is mapped to the corresponding infrasound frequency based on the corresponding relationship by using frequency modulation coding technology to obtain the target infrasound frequency.

3. The method according to claim 2, characterized in that The step of generating an infrasound wave based on the target infrasound wave frequency and emitting the infrasound wave comprises: generating a target voltage signal based on the target infrasound frequency; Performing power amplification processing on the target voltage signal to obtain an amplified target voltage signal; The amplified target voltage signal is input into the sound wave transducer to generate infrasound waves, and the infrasound waves are emitted.

4. The method according to claim 1, characterized in that: The receiving, at a detection point preset on the outer wall of the pipeline, an infrasound wave signal of the infrasound wave propagating along the pipeline wall comprises: After being emitted, the infrasound waves propagate along the outer wall of the pipeline, and at a detection point preset on the outer wall of the pipeline, a sensor signal detected by the sound wave sensor is acquired in real time; The sensor signal is filtered and amplified to extract an infrasound signal corresponding to the infrasound wave.

5. The method according to claim 2, characterized in that: The decoding process of the infrasound wave signal to obtain decoding speed information includes: The infrasound signal is decoded using a preset decoding algorithm to obtain decoding speed information, wherein the preset decoding algorithm is a reverse technology of the frequency modulation coding technology.

6. A system for monitoring running equipment based on infrasound, characterized in that: The infrasound-based operating equipment monitoring method according to any one of claims 1 to 5 is applied, wherein the infrasound-based operating equipment monitoring system comprises a speed sensor, an infrasound structure, a receiver and a monitoring system; The speed sensor and the infrasonic wave structure are arranged on the running device, and the speed sensor is connected to the infrasonic wave structure, and is used to transmit the running speed information acquired in real time to the infrasonic wave structure; the infrasonic wave structure is used to encode the running speed information to obtain a target infrasonic wave frequency; generate infrasonic waves based on the target infrasonic wave frequency, and emit the infrasonic waves; The receiver is arranged at a detection point preset on the outer wall of the pipeline, and is used to receive the infrasound wave signal propagating along the pipeline wall, and decode the infrasound wave signal to obtain decoding speed information; The monitoring system is connected to the receiver, and is used to receive the decoding speed information for display, and obtain the operating status of the operating equipment based on the decoding speed information to reflect the detection operation risk of the operating equipment.

7. The system according to claim 6, characterized in that The subsonic wave structure includes an encoder; The encoder is used to obtain the corresponding relationship between the preset speed information and the infrasonic wave frequency; The operating speed information is mapped to the corresponding infrasound frequency based on the corresponding relationship by using frequency modulation coding technology to obtain the target infrasound frequency.

8. The system according to claim 7, characterized in that The subsonic wave structure also includes a subsonic wave oscillator, a sound wave transducer and a transmitter; The infrasonic oscillator is connected to the encoder and is used to generate a target voltage signal based on the target infrasonic frequency; the target voltage signal is power amplified to obtain an amplified target voltage signal, and the amplified target voltage signal is input into the acoustic transducer; The acoustic wave transducer is connected to the transmitter and is used to generate infrasound waves based on the amplified target voltage signal, and the infrasound waves are emitted by the transmitter.

9. The system according to claim 7, characterized in that The receiver includes an acoustic wave sensor, and the acoustic wave sensor is arranged at a detection point on the outer wall of the exposed pipeline in the pipeline line; The acoustic wave sensor detects in real time the signal generated by the infrasound wave propagating along the outer wall of the pipeline after being emitted, obtains a sensor signal, and performs filtering and amplification processing on the sensor signal to extract the infrasound wave signal corresponding to the infrasound wave.

10. The system according to claim 9, characterized in that The receiver also includes a decoder, which is connected to the sound wave sensor and is used to decode the infrasound wave signal using a preset decoding algorithm to obtain decoding speed information. The preset decoding algorithm is a reverse technology of the frequency modulation coding technology.

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