Coal mine auxiliary caving method and device based on strong acoustic resonance and storage medium

Abstract

The present disclosure provides a coal mine auxiliary caving method and device based on strong acoustic resonance, and a storage medium. The method comprises: a resonance analysis module of an auxiliary caving device measures the resonance frequency of a coal seam longitudinal section at a target hydraulic support, and sends the resonance frequency to a control module; further, the control module determines the resonance configuration parameters according to the resonance frequency, and sends the resonance configuration parameters to a directional strong sound module; further, the directional strong sound module outputs directional strong sound to the coal seam roof above the coal seam longitudinal section based on the resonance configuration parameters, which can make the coal seam roof resonate through the directional strong sound, thereby facilitating the timely collapse of the suspended roof during the mining process and improving the efficiency of caving coal.

Description

Technical Field

[0001] This disclosure relates to the field of coal mining equipment technology, and in particular to a coal mine auxiliary roof caving method, device and storage medium based on strong acoustic resonance. Background Technology

[0002] The top caving mining process utilizes the pressure of the coal seam roof and the supporting force of the hydraulic supports, one of the "three machines" in coal mining. During coal mining, the roof and hydraulic supports generate compressive stress, causing the upper part of the thick coal seam to be squeezed and loosened, allowing the coal to fall from the hydraulic support's coal release mechanism. In addition to the portion directly extracted by the coal mining machine during the mining process, the remaining top coal seam is moved and released through the crushing action of mine pressure, indirectly increasing the efficiency of thick coal seam mining. However, due to the inherent physical and mechanical properties of coal, especially its compressive and tensile strength, the coal seam is subjected to long-term roof pressure and stratum stress, resulting in the coal seam being tightly compressed together. Some coal seams have high compressive and tensile strength, making it difficult for them to crack or break even under the pressure and disturbance of the hydraulic supports. During fully mechanized top caving mining, this can lead to roof overhang and difficulty in timely collapse, while some coal seams may adhere to the roof of the upper coal and rock layers, thus affecting the efficiency of top caving and coal release. Summary of the Invention

[0003] This disclosure proposes a method, apparatus, and storage medium for assisted roof caving in coal mines based on strong acoustic resonance, aiming to at least partially solve one of the technical problems in related technologies.

[0004] The first aspect of this disclosure proposes a method for assisted roof caving in coal mines based on strong acoustic resonance. This method is applied to assisted roof caving equipment installed at a target hydraulic support in the mine. The equipment includes a control module, a resonance analysis module, and a directional strong acoustic module. The method comprises: the resonance analysis module measuring the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sending the resonance frequency to the control module; the control module determining resonance configuration parameters based on the resonance frequency and sending the resonance configuration parameters to the directional strong acoustic module; and the directional strong acoustic module outputting directional strong sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters.

[0005] The second aspect of this disclosure provides a coal mine auxiliary roof caving device based on strong acoustic resonance, installed at a target hydraulic support in the mine. The device includes: a resonance analysis module for measuring the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sending the resonance frequency to a control module; a control module for determining resonance configuration parameters based on the resonance frequency and sending the resonance configuration parameters to a directional strong acoustic module; and a directional strong acoustic module for outputting directional strong sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters.

[0006] A third aspect of this disclosure provides a computer device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the coal mine assisted roof caving method based on strong acoustic resonance of the embodiments of this disclosure.

[0007] A fourth aspect of this disclosure provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the coal mine assisted roof caving method based on strong acoustic resonance disclosed in embodiments of this disclosure.

[0008] In this embodiment, the resonance analysis module of the auxiliary roof caving equipment measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sends the resonance frequency to the control module. Further, the control module determines the resonance configuration parameters based on the resonance frequency and sends the resonance configuration parameters to the directional high-intensity sound module. Further, the directional high-intensity sound module outputs directional high-intensity sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters. This directional high-intensity sound can cause the coal seam roof to resonate, which is beneficial for the timely collapse of the suspended roof during mining and improves the efficiency of roof caving and coal dropping.

[0009] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0010] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0011] Figure 1 This is a structural schematic diagram of the auxiliary roof-raising device provided according to an embodiment of the present disclosure;

[0012] Figure 2 This is a schematic flowchart of a coal mine assisted roof caving method based on strong acoustic resonance according to an embodiment of the present disclosure;

[0013] Figure 3 This is a schematic diagram of the overall architecture of the assisted roof-raising system provided according to an embodiment of this disclosure;

[0014] Figure 4 This is a schematic flowchart of a coal mine assisted roof caving method based on strong acoustic resonance, provided according to another embodiment of this disclosure.

[0015] Figure 5 This is a schematic diagram of a coal mine auxiliary roof caving device based on strong acoustic resonance, according to another embodiment of the present disclosure;

[0016] Figure 6 A block diagram of an exemplary computer device suitable for implementing embodiments of the present disclosure is shown. Detailed Implementation

[0017] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0018] It should be noted that the executing entity of the coal mine assisted roof caving method based on strong acoustic resonance in this embodiment can be a coal mine assisted roof caving device based on strong acoustic resonance. This device can be implemented by software and / or hardware. The device can be configured in an electronic device, which may include, but is not limited to, a terminal, a server, etc.

[0019] To realize the coal mine assisted roof caving method based on strong acoustic resonance, this disclosure also provides an auxiliary roof caving device. Figure 1 This is a structural schematic diagram of the auxiliary roof-raising device provided according to an embodiment of this disclosure, as shown below. Figure 1 As shown, the auxiliary caving equipment can be an intrinsically safe terminal device, including a control module (e.g., a microcontroller) and a resonance analysis module and a directional acoustic module connected to the control module. The resonance analysis module can be any rock resonance analysis instrument, and the directional acoustic module can be any device that can output directional acoustic sound, such as a sound wave diffuser, etc., without any limitation.

[0020] In this embodiment of the disclosure, the auxiliary roof caving equipment can be installed at the target hydraulic support in the coal mine, and can be installed towards the side of the coal seam roof.

[0021] In some embodiments, the target hydraulic support can be all the hydraulic supports in the coal mine, that is, an auxiliary caving device (terminal device) is installed on each hydraulic support; or, considering cost factors, some hydraulic supports in the coal mine can be selected as target hydraulic supports to install auxiliary caving devices. For example, an auxiliary caving device is installed every few hydraulic supports. That is, the total number of auxiliary caving devices can be determined according to the number of hydraulic supports in the coal mine.

[0022] Figure 2 This is a flowchart illustrating a coal mine assisted roof caving method based on strong acoustic resonance according to an embodiment of this disclosure. This method can be executed by auxiliary roof caving equipment installed at each target hydraulic support, such as... Figure 2 As shown, the method includes:

[0023] S201: The resonance analysis module measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sends the resonance frequency to the control module.

[0024] In actual coal mining, this embodiment can acquire coal samples and transport them to the auxiliary roof caving equipment at the target hydraulic support. In this case, the resonance analysis module of the auxiliary roof caving equipment can measure and analyze the coal samples to obtain the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support, which can be represented by F1. It can be understood that the resonance frequency F1 is the resonance frequency of the longitudinal profile of the coal seam at the current location of the target hydraulic support, and the resonance frequency F1 at different locations of the longitudinal profile of the coal seam (i.e., at different target hydraulic supports) can be the same or different, which is determined by the coal and rock properties.

[0025] In this embodiment, coal samples can be obtained and transported to the auxiliary caving equipment in any manner. For example, a robotic arm can be pre-installed at the target hydraulic support. When the coal falls onto the scraper conveyor through the coal discharge mechanism, the robotic arm can collect the coal sample from the scraper conveyor and send it to the auxiliary caving equipment. The specific structure of the robotic arm is not limited in this embodiment. Alternatively, coal samples can be collected manually and placed into the auxiliary caving equipment, which is also not limited.

[0026] If the resonance frequency F1 of the longitudinal profile of the coal seam is obtained by the resonance analysis module, the resonance analysis module can further send the resonance frequency F1 to the control module of the auxiliary roof caving equipment, that is, feed back the resonance frequency to the control module.

[0027] S202: The control module determines the resonance configuration parameters based on the resonance frequency and sends the resonance configuration parameters to the directional high-intensity sound module.

[0028] The parameters used to control the output frequency, output energy, sound loudness, and output direction of the directional high-intensity sound module can be called resonance configuration parameters. In this embodiment, the control module of the auxiliary roof-mounting device can determine these resonance configuration parameters based on the resonance frequency F1. It is understood that different resonance frequencies F1 will result in different resonance configuration parameters.

[0029] In some embodiments, the resonance configuration parameters include one or more of the following parameters:

[0030] Transmission distance: for example, greater than 2000 meters;

[0031] Effective resonance distance: for example, greater than 200 meters;

[0032] Maximum sound pressure level at 1 meter: for example, greater than 152 dB;

[0033] Beamwidth: for example, ±15°;

[0034] Frequency response range: for example, 500Hz-6000Hz;

[0035] Horizontal launch angle range: e.g., <120°;

[0036] Launch elevation angle range: for example, <60°;

[0037] It is understood that this embodiment is only an exemplary description of the resonance configuration parameters. In practical applications, there may be other possible configuration parameters, and there are no restrictions on them.

[0038] In some embodiments, a mapping table between resonant frequencies and resonant configuration parameters can be pre-configured based on relevant historical data. The control module can query the resonant configuration parameters corresponding to the current resonant frequency based on the mapping table, or the control module can calculate the resonant frequency according to a preset algorithm to generate the resonant configuration parameters. There are no restrictions on this.

[0039] Furthermore, the control module can send the resonance configuration parameters to the directional high-intensity sound module.

[0040] S203: The directional high-intensity sound module outputs directional high-intensity sound to the roof of the coal seam above the longitudinal profile of the coal seam based on the resonance configuration parameters.

[0041] Specifically, after receiving the resonance configuration parameters, the directional acoustic module of the auxiliary top caving equipment can perform relevant configurations based on these parameters. After configuration, the directional acoustic module outputs directional acoustic signals to the coal seam roof above the longitudinal profile of the coal seam. Under the action of the directional acoustic signals, the coal seam roof resonates, thereby accelerating the formation of cracks between the coal seam roofs, enabling the coal to separate and collapse rapidly, accelerating coal falling, and improving the coal production efficiency of the top coal caving process.

[0042] In practical applications, multiple auxiliary caving devices installed on multiple target hydraulic supports can work simultaneously, terminal devices can work simultaneously, or they can work at regular intervals (the best is for the intervals between two operations to be complementary). Other combined working methods can also be adopted according to the changes in the coal seam conditions at the working face, which will not be elaborated here.

[0043] In this embodiment, the resonance analysis module of the auxiliary roof caving equipment measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sends the resonance frequency to the control module. Further, the control module determines the resonance configuration parameters based on the resonance frequency and sends the resonance configuration parameters to the directional high-intensity sound module. Further, the directional high-intensity sound module outputs directional high-intensity sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters. This directional high-intensity sound can cause the coal seam roof to resonate, which is beneficial for the timely collapse of the suspended roof during mining and improves the efficiency of roof caving and coal dropping.

[0044] As described in the above embodiments, multiple auxiliary roof caving devices are installed on multiple target hydraulic supports in underground coal mines, thus resulting in multiple auxiliary roof caving devices. To enable unified management of these multiple auxiliary roof caving devices, this disclosure also provides an auxiliary roof caving system. Figure 3 This is a schematic diagram of the overall architecture of the assisted roof-lowering system provided in the embodiments of this disclosure, as shown below. Figure 4 As shown, the auxiliary top-raising system includes a comprehensive management and control back-end system (hereinafter referred to as the "back-end system") and multiple auxiliary top-raising devices (terminal devices) that communicate with the back-end system, namely: terminal device 1, terminal device 2, terminal device 3, ..., terminal device n.

[0045] Figure 4 This is a flowchart illustrating a coal mine assisted roof caving method based on strong acoustic resonance, according to another embodiment of this disclosure. The method is executed by each assisted roof caving device, such as... Figure 4 As shown, the method includes:

[0046] S401: Test the directional high-intensity sound module and / or resonance analysis module.

[0047] In this embodiment of the disclosure, after each auxiliary caving device is powered on, the control module first tests the directional acoustic module and / or the resonance analysis module, or the directional acoustic module, the resonance analysis module and the control module perform a self-test to determine whether the auxiliary caving device can work normally.

[0048] S402: Under normal detection conditions, the resonance analysis module measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support; otherwise, the control module sends an abnormal message to the background system.

[0049] In other words, when it is confirmed that the auxiliary caving equipment can work normally, the resonance analysis module measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support; but if the detection is abnormal, such as the directional strong sound module, the resonance analysis module, or the control module malfunctions, causing the auxiliary caving equipment to fail to work normally, the control module of the auxiliary caving equipment can send abnormal information to the background system, that is, report abnormal information.

[0050] Understandably, this disclosure was implemented under normal testing conditions.

[0051] S403: The control module uploads the resonant frequency to the backend system.

[0052] In the operation of determining the resonance configuration parameters based on the resonance frequency, the control module of this embodiment can upload the resonance frequency to the background system. That is to say, each auxiliary jacking device uploads the measured resonance frequency to the background system, for example, by uniformly uploading it to the background system through the EIP protocol.

[0053] S404: The control module receives the target result from the background system and determines the resonance configuration parameters based on the target result. The target result is calculated by the background system based on multiple resonance frequencies measured by multiple auxiliary caving devices.

[0054] In other words, the back-end system can calculate by integrating multiple resonant frequencies to obtain the target result corresponding to each auxiliary caving device.

[0055] In some embodiments, considering that the measurement of the resonant frequency by the auxiliary caving equipment may have errors, in this case, the background system can calculate the average resonant frequency of multiple resonant frequencies as the target result and send the target result to each auxiliary caving equipment. Then, the control module of each auxiliary caving equipment can determine the resonant configuration parameters based on the average resonant frequency (i.e., the target result).

[0056] In other embodiments, auxiliary caving devices are installed at intervals between target hydraulic supports, thus the longitudinal profile of the coal seam between adjacent target hydraulic supports lacks directional acoustic modules outputting directional acoustic signals. In view of this, the backend system of this disclosure embodiment can integrate the distances between multiple auxiliary caving devices and the resonant frequency to calculate the directional acoustic range of each auxiliary caving device as the target result, so that the directional acoustic signals output by two adjacent auxiliary caving devices can cover the longitudinal profile of the coal seam where no auxiliary caving devices are installed. In this case, the control module can determine the corresponding resonance configuration parameters based on the received target result and the measured resonant frequency. For example, compared to the resonance configuration parameters of the above embodiments, the range of the horizontal emission angle and the range of the emission pitch angle in the resonance configuration parameters determined in this embodiment will be expanded, that is, the diffusion range of the acoustic signal will be expanded.

[0057] As mentioned above, when the auxiliary top-mounting device malfunctions, it sends an abnormal message to the backend system. The backend system can then send this abnormal message as the target result to each auxiliary top-mounting device. In this embodiment, after receiving the target result, if the device indicating the abnormal message is its adjacent auxiliary top-mounting device (i.e., the adjacent auxiliary top-mounting device is confirmed to be faulty), the control module in this embodiment can enhance the resonance configuration parameters, such as expanding the range of launch horizontal angle and launch elevation angle.

[0058] Therefore, the embodiments of this disclosure can control the directional intensity sound of each auxiliary roof caving device by comprehensively measuring the resonant frequency of all auxiliary roof caving devices underground, ensuring that directional intensity sound is output to the coal seam roof in the full range, and further improving the efficiency of roof caving and coal dropping.

[0059] S405: The directional high-intensity sound module outputs directional high-intensity sound to the roof of the coal seam above the longitudinal profile of the coal seam based on resonance configuration parameters.

[0060] For a detailed description of S405, please refer to the above embodiments, which will not be repeated here.

[0061] In this embodiment, the resonance analysis module of the auxiliary roof caving equipment measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sends the resonance frequency to the control module. Further, the control module determines resonance configuration parameters based on the resonance frequency and sends these parameters to the directional acoustic module. Furthermore, the directional acoustic module, based on the resonance configuration parameters, outputs directional acoustic signals to the coal seam roof above the longitudinal profile of the coal seam. This directional acoustic signal induces resonance in the coal seam roof, facilitating timely roof collapse during mining and improving the efficiency of roof caving and coal extraction. Moreover, this embodiment can comprehensively control the directional acoustic signals of each auxiliary roof caving device by integrating the resonance frequencies measured by all underground auxiliary roof caving equipment, ensuring full-range output of directional acoustic signals to the coal seam roof and further improving the efficiency of roof caving and coal extraction.

[0062] Figure 5 This is a schematic diagram of a coal mine auxiliary roof caving device based on strong acoustic resonance, according to another embodiment of this disclosure. Figure 5 As shown, the coal mine auxiliary roof caving device 50 based on strong acoustic resonance includes:

[0063] The resonance analysis module 501 is used to measure the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and send the resonance frequency to the control module.

[0064] Control module 502 is used to determine the resonance configuration parameters according to the resonance frequency and send the resonance configuration parameters to the directional high-intensity sound module;

[0065] The directional high-intensity sound module 503 is used to output directional high-intensity sound to the roof of the coal seam above the longitudinal profile of the coal seam based on resonance configuration parameters.

[0066] In some embodiments, the control module 502 is specifically used for: uploading the resonance frequency to the background system; and receiving the target result from the background system and determining the resonance configuration parameters based on the target result, wherein the target result is calculated by the background system based on multiple resonance frequencies measured by multiple auxiliary caving devices.

[0067] In some embodiments, the control module is specifically used to: detect the directional acoustic module and / or the resonance analysis module; the resonance analysis module is used to measure the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support when the detection is normal, otherwise the control module sends abnormal information to the background system.

[0068] In some embodiments, the control module 502 is specifically configured to enhance the resonance configuration parameters when the target result indicates a failure of the adjacent auxiliary caving equipment.

[0069] In some embodiments, the resonance configuration parameters include: transmission distance, effective resonance distance, maximum sound pressure level at 1 meter, beamwidth, frequency response range, transmission horizontal angle range, and transmission pitch angle range.

[0070] In this embodiment, the resonance analysis module of the coal mine auxiliary roof caving device based on strong acoustic resonance measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and sends the resonance frequency to the control module. Further, the control module determines the resonance configuration parameters according to the resonance frequency and sends the resonance configuration parameters to the directional strong acoustic module. Further, the directional strong acoustic module outputs directional strong sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters. It can make the coal seam roof resonate through directional strong sound, which is conducive to the timely collapse of the suspended roof during mining and improves the efficiency of roof caving and coal dropping.

[0071] According to embodiments of this disclosure, this disclosure also provides a computer device, a readable storage medium, and a computer program product.

[0072] To implement the above embodiments, this disclosure also proposes a computer program product that, when executed by an instruction processor, performs the coal mine assisted roof caving method based on strong acoustic resonance as proposed in the foregoing embodiments of this disclosure.

[0073] Figure 6 A block diagram of an exemplary computer device suitable for implementing embodiments of the present disclosure is shown. Figure 6 The computer device 12 shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments disclosed herein.

[0074] like Figure 6 As shown, the computer device 12 is represented in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and a bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0075] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0076] Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0077] Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and / or cache memory 32. Computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 6 Not shown; usually referred to as a "hard drive".

[0078] although Figure 6Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc (e.g., a compact disc read-only memory (CD-ROM), a digital video disc read-only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this disclosure.

[0079] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of this disclosure.

[0080] Computer device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable a user to interact with computer device 12, and / or with any device that enables computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, computer device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of computer device 12 via bus 18. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0081] The processing unit 16 executes various functional applications by running programs stored in the system memory 28, such as implementing the coal mine assisted roof caving method based on strong acoustic resonance mentioned in the foregoing embodiments.

[0082] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0083] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0084] It should be noted that in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0085] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0086] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0087] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0088] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0089] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A coal mine assisted roof caving method based on strong acoustic resonance, applied to assisted roof caving equipment, characterized in that, The auxiliary roof-caving equipment is installed at the target hydraulic support underground in the mine, and includes a control module, a resonance analysis module, and a directional high-intensity sound module. The method includes: The resonance analysis module measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support, including: detecting the directional high-intensity acoustic module and / or the resonance analysis module; if the detection is normal, the resonance analysis module measures the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support; otherwise, the control module sends an abnormal message to the background system and sends the resonance frequency to the control module. The control module determines the resonance configuration parameters based on the resonance frequency and sends the resonance configuration parameters to the directional high-intensity sound module. The resonance configuration parameters include: transmission distance, effective resonance distance, maximum sound pressure level at 1 meter, beamwidth, frequency response range, transmission horizontal angle range, and transmission pitch angle range. The directional high-intensity sound module outputs directional high-intensity sound to the coal seam roof above the longitudinal profile of the coal seam based on the resonance configuration parameters; The control module determines the resonance configuration parameters based on the resonance frequency, including: The control module uploads the resonant frequency to the backend system; and The control module receives the target result from the background system and determines the resonance configuration parameters based on the target result. The target result is calculated by the background system based on multiple resonance frequencies measured by multiple auxiliary caving devices. The working modes of the multiple auxiliary caving devices installed on the target hydraulic support include: working simultaneously or working at regular intervals.

2. The method as described in claim 1, characterized in that, The control module determines the resonance configuration parameters based on the resonance frequency, including: The control module queries the resonance configuration parameters corresponding to the resonance frequency based on a preset mapping table.

3. A coal mine auxiliary roof caving device based on strong acoustic resonance, characterized in that, The device, installed at the target hydraulic support in the mine, includes: The resonance analysis module is used to measure the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support and send the resonance frequency to the control module. The control module is used to determine the resonance configuration parameters according to the resonance frequency and send the resonance configuration parameters to the directional high-intensity sound module. Specifically, it is used to: detect the directional high-intensity sound module and / or the resonance analysis module; the resonance analysis module is used to measure the resonance frequency of the longitudinal profile of the coal seam at the target hydraulic support when the detection is normal; otherwise, the control module sends abnormal information to the background system. A directional high-intensity sound module is used to output directional high-intensity sound to the roof of the coal seam above the longitudinal profile of the coal seam based on the resonance configuration parameters. The resonance configuration parameters include: transmission distance, effective resonance distance, maximum sound pressure level at 1 meter, beamwidth, frequency response range, transmission horizontal angle range, and transmission pitch angle range. The control module is specifically used for: The control module uploads the resonant frequency to the backend system; and The control module receives the target result from the background system and determines the resonance configuration parameters based on the target result. The target result is calculated by the background system based on multiple resonance frequencies measured by multiple auxiliary caving devices. The working modes of the multiple auxiliary caving devices installed on the target hydraulic support include: working simultaneously or working at regular intervals.

4. The apparatus as described in claim 3, characterized in that, The control module is specifically used for: The control module queries the resonance configuration parameters corresponding to the resonance frequency based on a preset mapping table.

5. A non-transitory computer-readable storage medium storing computer instructions, wherein, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-2.

Images