Mine laneway traffic scheduling method and device, electronic equipment and storage medium

Abstract

The invention provides a mine laneway traffic scheduling method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a continuous vibration signal monitored by a distributed optical fiber sound wave sensing system in a mine laneway; performing filtering and signal identification on the continuous vibration signal to identify a vehicle driving signal; monitoring the triggering time of the calibration point in the mine laneway according to the vehicle driving signal, and determining the position and the driving direction of the vehicle; according to the vehicle driving signal, the position of the vehicle and the driving direction, determining whether vehicle early warning needs to be carried out in the mine laneway; and in response to the need of vehicle early warning, generating a vehicle scheduling and early warning instruction so as to perform vehicle scheduling. Therefore, by analyzing the vibration signals monitored by the distributed optical fiber sound wave sensing system in the mine laneway in real time, the position, the speed and the vehicle driving direction of the vehicle are accurately recognized, so that before potential traffic conflicts occur, dispatching and early warning instructions are sent to related vehicles, and the passing efficiency and the safety of the mine laneway are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of coal mine safety technology, and in particular to a method, apparatus, electronic device and storage medium for mine roadway traffic scheduling. Background Technology

[0002] In coal mines and other underground mine operations, some temporary or auxiliary roadways are limited by space, with a width only wide enough for one working vehicle (such as a coal truck or material truck) to pass in one direction. However, in actual production, the demand for two-way traffic in and out of mine roadways is constant. When vehicles in both directions need to pass each other, turning around or passing is extremely difficult due to the narrow roadways and the typically long vehicles. One vehicle must reverse to the roadway entrance or a pre-designated, wider "passing point" to wait. This process not only wastes a significant amount of operating time and reduces transportation efficiency, but also increases roadway congestion during reversing and waiting, creating potential safety hazards. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the first objective of this invention is to propose a traffic scheduling method for mine roadways. By analyzing the vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway in real time, the method can accurately identify the position, speed, and direction of vehicle travel. This allows for the issuance of scheduling and early warning instructions to relevant vehicles before potential traffic conflicts occur, effectively improving the traffic efficiency and safety of mine roadways.

[0005] The second objective of this invention is to provide a mine roadway traffic dispatching device.

[0006] The third objective of this invention is to provide an electronic device.

[0007] The fourth objective of this invention is to provide a non-transitory computer-readable storage medium storing computer instructions.

[0008] To achieve the above objectives, a first aspect of the present invention provides a method for traffic scheduling in mine roadways, the method comprising: Acquire continuous vibration signals monitored by a distributed fiber optic acoustic sensing system in a mine roadway; After filtering the continuous vibration signal, vehicle driving signal recognition is performed to identify the vehicle driving signal; The vehicle's position and direction of travel are determined based on the trigger time of the vehicle driving signal at the monitoring calibration point in the mine roadway. Based on the vehicle driving signal, vehicle position, and driving direction, determine whether vehicle warning is required in the mine roadway; In response to the need for vehicle early warning, vehicle dispatch and early warning instructions are generated for vehicle dispatch.

[0009] To achieve the above objectives, a second aspect of the present invention provides a mine roadway traffic dispatching device, the device comprising: The acquisition module is used to acquire continuous vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway. The identification module is used to filter the continuous vibration signal and then identify the vehicle driving signal to identify the vehicle driving signal. The first determining module is used to determine the vehicle's position and direction of travel based on the triggering time of the monitoring calibration point in the mine roadway according to the vehicle's driving signal. The second determining module is used to determine whether a vehicle warning is needed in the mine roadway based on the vehicle driving signal, the vehicle's position, and the driving direction. The scheduling module is used to generate vehicle scheduling and warning instructions in response to the need for vehicle warnings, so as to carry out vehicle scheduling.

[0010] To achieve the above objectives, a third aspect of the present invention provides an electronic 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 method described in the first aspect.

[0011] To achieve the above objectives, a fourth aspect of the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the method described in the first aspect.

[0012] The mine roadway traffic scheduling method, apparatus, electronic equipment, and storage medium of this invention acquire continuous vibration signals monitored by a distributed fiber optic acoustic wave sensing system in the mine roadway; filter and identify the continuous vibration signals to identify vehicle driving signals; determine the vehicle's position and direction of travel based on the trigger time of the vehicle driving signal at the monitoring calibration point in the mine roadway; determine whether a vehicle warning is needed in the mine roadway based on the vehicle driving signal, vehicle position, and direction of travel; and generate vehicle scheduling and warning instructions in response to the need for a vehicle warning to be issued, so as to carry out vehicle scheduling. Therefore, by analyzing the vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway in real time, the position, speed, and direction of travel of vehicles are accurately identified, thereby issuing scheduling and warning instructions to relevant vehicles before potential traffic conflicts occur, effectively improving the traffic efficiency and safety of the mine roadway.

[0013] Additional aspects and advantages of the invention 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 the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic flowchart of a mine roadway traffic scheduling method provided in an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the principle of a mine roadway traffic scheduling method provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of a mine roadway traffic dispatching device provided in an embodiment of the present invention. Detailed Implementation

[0015] Embodiments of the present invention 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0016] It should be noted that the acquisition, storage, use, and processing of data in this application's technical solution all comply with the relevant provisions of laws and regulations.

[0017] The following describes a mine roadway traffic scheduling method and apparatus according to embodiments of the present invention with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic flowchart of a mine roadway traffic scheduling method provided in an embodiment of the present invention.

[0019] like Figure 1 As shown, the method includes the following steps: Step 101: Obtain the continuous vibration signal monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway.

[0020] In some embodiments, without significantly increasing hardware investment and safety risks, real-time monitoring of the entire cross-section of the roadway can be achieved. As an example, distributed strain rate or acoustic wave data can be acquired in real time by a distributed fiber optic acoustic wave sensing system deployed along the mine roadway; the continuous distributed strain rate or acoustic wave data can be used as a continuous vibration signal.

[0021] For example, the distributed strain rate or acoustic wave data D(c, t) collected in real time by the Distributed Acoustic Sensing System (DAS) deployed along the mine roadway, where c represents the distributed optical fiber channel (location) and t represents time.

[0022] Step 102: After filtering the continuous vibration signal, vehicle driving signal recognition is performed to identify the vehicle driving signal.

[0023] In some embodiments, to improve the accuracy, real-time performance, and anti-interference capabilities of vehicle monitoring in a closed mine environment, as an example, continuous vibration signals are filtered to obtain frequency signals generated by vehicle movement. Based on the linear characteristics of the vehicle movement signal in the spatiotemporal diagram, a vehicle movement signal identification method is determined. This method includes at least one of the following: template matching and frequency / wavenumber filtering. The frequency signals are identified using template matching and frequency / wavenumber filtering to obtain the vehicle movement signal. This method can effectively suppress signals from fixed sources such as coal mining machines, high-speed signals such as micro-vibrations, and low-speed signals such as personnel movement, thereby enhancing the characteristics of the vehicle movement signal and suppressing other interference.

[0024] It should be noted that by applying a bandpass filter to the continuous vibration signal D(c, t), the main frequency components generated by vehicle movement (e.g., 10-200 Hz) can be retained, while high-frequency random noise and low-frequency background drift can be filtered out, thereby obtaining the frequency signal generated by vehicle movement.

[0025] Optionally, the frequency signal is identified by template matching to obtain the vehicle driving signal, including: performing two-dimensional cross-correlation calculation between the constructed standard vehicle driving signal distributed fiber optic acoustic wave sensing spatiotemporal response template and the frequency signal; when the correlation value of the two-dimensional cross-correlation calculation exceeds a set threshold, it is determined to be a vehicle driving signal.

[0026] The frequency signal is identified using a frequency / wavenumber filtering method to obtain the vehicle driving signal. This process includes: transforming the frequency signal to the frequency / wavenumber domain to obtain frequency / wavenumber domain data; calculating the corresponding apparent speed range based on the normal driving speed range of the vehicle, and designing a sector filter in the frequency / wavenumber domain to retain the target frequency / wavenumber domain data within the corresponding sector area of ​​the sector filter; and transforming the target frequency / wavenumber domain data back to the spatiotemporal domain to obtain the vehicle driving signal.

[0027] Specifically, the frequency / wavenumber (FK) filtering method transforms the data to the frequency-wavenumber (FK) domain, designs a sector filter, and retains only the target frequency / wavenumber domain data within the apparent speed range corresponding to the normal driving speed of the vehicle (e.g., 5-20 km / h). Then, the target frequency / wavenumber domain data is transformed back to the spatiotemporal domain to achieve accurate extraction of the vehicle driving signal.

[0028] Step 103: Determine the vehicle's position and direction of travel based on the trigger time of the vehicle's driving signal at the monitoring calibration point in the mine roadway.

[0029] In some embodiments, to achieve accurate vehicle location tracking and intelligent determination of driving direction, as an example, virtual monitoring calibration points are set on the fiber optic channels corresponding to key locations during vehicle movement in mine roadways; wherein, the key locations include at least one of the following: mine roadway entrance, mine roadway exit, and mine roadway passing point; when the vehicle driving signal passes through the key locations, the time when the vehicle driving signal sequentially triggers adjacent monitoring calibration points is determined; and the vehicle driving direction is determined based on the time of adjacent key locations.

[0030] For example, virtual monitoring calibration points can be set up on the distributed fiber optic channels at key locations in mine roadways (such as mine roadway entrances, mine roadway exits, and near passing points). .

[0031] On the vehicle driving signal after the above processing, the Short-Term Average / Long-Term Average (STA / LTA) algorithm is applied along the spatial dimension (distributed fiber channel c). When the energy peak of the vehicle driving signal passes the monitoring calibration point... At this time, the STA / LTA value will be triggered. This is achieved by sequentially triggering adjacent monitoring calibration points by recording vehicle driving signals. and time and This allows us to determine the vehicle's direction of travel. For example, if The direction of travel is from point to The STA / LTA algorithm formula is as follows: .

[0032] Step 104: Determine whether vehicle warning is required in the mine roadway based on vehicle driving signals, vehicle position, and driving direction.

[0033] In some embodiments, to achieve real-time conflict assessment based on the status of all vehicles in the mine roadway, as an example, vehicle warnings include: single-vehicle entry warning or two-way encounter warning, wherein: single-vehicle entry warning detects a vehicle entering at a key location at one end of the mine roadway; two-way encounter warning detects two vehicles traveling in opposite directions at key locations at both ends of the mine roadway. This addresses issues such as delayed collision risk warnings, scheduling decision errors, and blind spots in safety management.

[0034] For example, a single vehicle entry warning: a vehicle is detected at a monitoring calibration point at one end of the roadway (such as mine roadway entrance A). Upon entry, the mine immediately checks whether there are any vehicles traveling in the opposite direction in the roadway. If not, a "roadway occupied" signal is sent to the early warning system at the other end of the mine roadway (mine roadway exit B).

[0035] Two-way encounter warning: Vehicles are detected at both ends of the mine roadway. (From A to B) and (From B to A) When traveling in opposite directions, vehicle warning and conflict resolution modes are activated.

[0036] It should be noted that the early warning system is equipped with explosion-proof audible and visual alarms or LED warning signs that are linked to the DAS analysis host at the entrance and exit of the mine roadway and at all preset passing points in the mine roadway.

[0037] Step 105: In response to the need for vehicle early warning, generate vehicle dispatch and early warning instructions to carry out vehicle dispatch.

[0038] In some embodiments, explicit instructions can be issued to the driver based on the vehicle warning results. For example, in response to a single vehicle entry warning, a notification device is used at the other end of the mine roadway until the vehicle leaves the roadway; in response to a two-way encounter warning, the positions and speeds of the two vehicles are calculated, the meeting point is predicted, and a passing plan is determined at the passing point in the mine roadway. This addresses key issues such as delayed warning response, low scheduling efficiency, and uncontrollable safety risks.

[0039] For example, for single-vehicle entry warnings: the LED sign at mine tunnel exit B displays "Oncoming vehicle, no entry," or an explosion-proof audible and visual alarm illuminates a red indicator light until the vehicle enters. The vehicle departed from the mine tunnel.

[0040] For two-way encounter warnings, a passing scheme is implemented: for example, instructing vehicles entering a mine roadway later to pass. Stop and wait at the nearest passing point in the mine tunnel. The instruction will be given to the vehicle via an LED sign in front of the passing point (displaying "Please stop here to pass") or via the mine's wireless communication system. The terminal in the driver's cab broadcasts voice messages.

[0041] It should be noted that the vehicle dispatching logic can be expressed as follows:

[0042] in, It represents the state of vehicle i (vehicle position and orientation), and TunnelLayout contains the location information of passing points in the mine tunnel.

[0043] The mine roadway traffic scheduling method of this invention acquires continuous vibration signals monitored by a distributed fiber optic acoustic wave sensing system in the mine roadway; filters and identifies the continuous vibration signals to determine vehicle travel signals; determines the vehicle's position and direction of travel based on the trigger time of the vehicle travel signal at the monitoring calibration point in the mine roadway; determines whether a vehicle warning is needed in the mine roadway based on the vehicle travel signal, vehicle position, and direction of travel; and generates vehicle scheduling and warning instructions in response to the need for a vehicle warning. Thus, by analyzing the vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway in real time, the method accurately identifies the vehicle's position, speed, and direction of travel, thereby issuing scheduling and warning instructions to relevant vehicles before potential traffic conflicts occur, effectively improving the traffic efficiency and safety of the mine roadway.

[0044] Figure 2 This is a schematic diagram illustrating the principle of a mine roadway traffic scheduling method provided in an embodiment of the present invention. It includes three stages: the first stage is vehicle traffic signal identification, the second stage is traffic scheduling decision-making, and the third stage is instruction execution and result. Vehicle traffic signal identification involves real-time acquisition of continuous vibration signals via DNS data, filtering the continuous vibration signals, and then identifying the vehicle traffic signals. Based on the trigger time of the vehicle traffic signal at the monitoring calibration point in the mine roadway, the vehicle's position and direction of travel are determined, and finally, the real-time vehicle status (vehicle traffic signal, vehicle position, and direction of travel) is output. Traffic scheduling decision-making involves determining whether vehicle warnings are needed in the mine roadway. Vehicle warnings include single-vehicle entry warnings or two-way encounter warnings. In response to the need for vehicle warnings, vehicle scheduling and warning instructions are generated for vehicle scheduling. Instruction execution and result: The warning system (explosion-proof audible and visual alarms or LED signs, voice broadcasts) provides warning prompts, ultimately achieving orderly vehicle movement.

[0045] In summary, this method realizes a closed-loop intelligent traffic scheduling approach that can automatically sense the traffic situation in mine roadways and proactively issue early warnings and scheduling instructions to guide vehicles to pass in an orderly, efficient, and safe manner. This significantly reduces delays caused by oncoming traffic, lowers safety risks, and maximizes the application value of existing DAS (Direct Traffic Assistance System).

[0046] To achieve the above embodiments, the present invention also proposes a mine roadway traffic dispatching device.

[0047] Figure 3 This is a schematic diagram of a mine roadway traffic dispatching device provided in an embodiment of the present invention.

[0048] like Figure 3 As shown, the mine roadway traffic dispatching device 300 includes an acquisition module 301, an identification module 302, a first determination module 303, a second determination module 304, and a dispatching module 305.

[0049] The system includes: an acquisition module 301 for acquiring continuous vibration signals monitored by a distributed fiber optic acoustic wave sensing system in a mine roadway; an identification module 302 for filtering the continuous vibration signals and then identifying vehicle movement signals; a first determination module 303 for determining the vehicle's position and direction of travel based on the trigger time of the vehicle movement signal at a monitoring calibration point in the mine roadway; a second determination module 304 for determining whether a vehicle warning is required in the mine roadway based on the vehicle movement signal, the vehicle's position, and the direction of travel; and a scheduling module 305 for generating vehicle scheduling and warning commands in response to the need for a vehicle warning, in order to schedule the vehicle.

[0050] Furthermore, in one possible implementation of this invention, the acquisition module 301 is specifically used to: acquire distributed strain rate or acoustic wave data collected in real time by a distributed fiber optic acoustic wave sensing system deployed along the mine roadway; and use the continuous distributed strain rate or acoustic wave data as a continuous vibration signal.

[0051] Further, in one possible implementation of this invention, the identification module 302 includes: a filtering unit for filtering the continuous vibration signal to obtain a frequency signal generated by vehicle movement; a determination unit for determining a vehicle movement signal identification method based on the linear characteristics of the vehicle movement signal on a spatiotemporal graph, wherein the signal identification method includes at least one of the following: template matching method and frequency / wavenumber filtering method; and an identification unit for identifying the frequency signal using the template matching method and the frequency / wavenumber filtering method to obtain the vehicle movement signal.

[0052] Further, in one possible implementation of this invention, the identification unit is specifically used to: perform two-dimensional cross-correlation calculation between a constructed standard vehicle driving signal distributed fiber optic acoustic wave sensing spatiotemporal response template and a frequency signal; when the correlation value of the two-dimensional cross-correlation calculation exceeds a set threshold, it is determined to be a vehicle driving signal; the identification unit is also specifically used to: transform the frequency signal to the frequency / wavenumber domain to obtain frequency / wavenumber domain data; calculate the corresponding apparent speed range according to the normal driving speed range of the vehicle, and design a fan-shaped filter in the frequency / wavenumber domain to retain the target frequency / wavenumber domain data in the fan-shaped region corresponding to the fan-shaped filter in the frequency / wavenumber domain data; and transform the target frequency / wavenumber domain data back to the spatiotemporal domain to obtain the vehicle driving signal.

[0053] Furthermore, in one possible implementation of this invention, the first determining module 303 is specifically used to: set virtual monitoring calibration points on the optical fiber channel corresponding to key locations during vehicle travel in the mine roadway; wherein the key locations include at least one of the following: mine roadway entrance, mine roadway exit, and mine roadway passing point; when the vehicle travel signal passes through the key locations, determine the time when the vehicle travel signal sequentially triggers adjacent monitoring calibration points; and determine the vehicle's travel direction based on the time of adjacent key locations.

[0054] Furthermore, in one possible implementation of this invention, the vehicle warning includes: single-vehicle entry warning or two-way encounter warning, wherein: the single-vehicle entry warning is the detection of a vehicle entering at a key location at one end of a mine roadway; the two-way encounter warning is the detection of two vehicles traveling in opposite directions at key locations at both ends of a mine roadway.

[0055] Furthermore, in one possible implementation of this invention, the scheduling module is specifically used to: respond to the single-vehicle entry warning by providing a prompting device at the other end of the mine roadway until the vehicle leaves the mine roadway; and respond to the two-way encounter warning by calculating the positions and speeds of the two vehicles, predicting the meeting point, and determining a passing scheme at the passing point in the mine roadway.

[0056] The mine roadway traffic dispatching device of this invention acquires continuous vibration signals monitored by a distributed fiber optic acoustic wave sensing system in the mine roadway; filters and identifies the continuous vibration signals to determine vehicle travel signals; determines the vehicle's position and direction of travel based on the trigger time of the vehicle travel signal at the monitoring calibration point in the mine roadway; determines whether a vehicle warning is needed in the mine roadway based on the vehicle travel signal, vehicle position, and direction of travel; and generates vehicle dispatching and warning instructions in response to the need for a vehicle warning. Thus, by analyzing the vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway in real time, the device accurately identifies the vehicle's position, speed, and direction of travel, thereby issuing dispatching and warning instructions to relevant vehicles before potential traffic conflicts occur, effectively improving the traffic efficiency and safety of the mine roadway.

[0057] To achieve the above embodiments, the present invention also proposes an electronic device, comprising: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the aforementioned method.

[0058] To implement the above embodiments, the present invention also proposes a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the aforementioned method.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] 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 custom logic functions or processes, and the scope of preferred embodiments of the invention 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 functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0062] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0063] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in 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 of the following techniques known in the art, or a combination thereof: 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.

[0064] 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.

[0065] Furthermore, the functional units in the various embodiments of the present invention 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.

[0066] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present invention 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 invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for traffic scheduling in mine roadways, characterized in that, The method includes: Acquire continuous vibration signals monitored by a distributed fiber optic acoustic sensing system in a mine roadway; After filtering the continuous vibration signal, vehicle driving signal recognition is performed to identify the vehicle driving signal; The vehicle's position and direction of travel are determined based on the trigger time of the vehicle driving signal at the monitoring calibration point in the mine roadway. Based on the vehicle driving signal, vehicle position, and driving direction, determine whether vehicle warning is required in the mine roadway; In response to the need for vehicle early warning, vehicle dispatch and early warning instructions are generated for vehicle dispatch.

2. The method according to claim 1, characterized in that, The acquisition of continuous vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway includes: Acquire distributed strain rate or acoustic wave data in real time from a distributed fiber optic acoustic wave sensing system deployed along the mine roadway. Continuous distributed strain rate or acoustic wave data are used as continuous vibration signals.

3. The method according to claim 1, characterized in that, The step of filtering the continuous vibration signal and then identifying the vehicle driving signal includes: The continuous vibration signal is filtered to obtain the frequency signal generated by the vehicle's movement; Based on the linear characteristics of the vehicle's driving signal on the spatiotemporal graph, a method for identifying the vehicle's driving signal is determined. The signal identification method includes at least one of the following: template matching method and frequency / wavenumber filtering method. The frequency signal is identified using the template matching method and the frequency / wavenumber filtering method to obtain the vehicle driving signal.

4. The method according to claim 3, characterized in that, The step of identifying the frequency signal using the template matching method to obtain the vehicle driving signal includes: By constructing a distributed fiber optic acoustic wave sensing spatiotemporal response template for standard vehicle driving signals, a two-dimensional cross-correlation calculation is performed between the template and the frequency signal. When the correlation value of the two-dimensional cross-correlation calculation exceeds a set threshold, it is determined to be a vehicle driving signal. The step of identifying the frequency signal using the frequency / wavenumber filtering method to obtain the vehicle driving signal includes: The frequency signal is transformed to the frequency / wavenumber domain to obtain frequency / wavenumber domain data; Based on the normal driving speed range of the vehicle, the corresponding apparent speed range is calculated, and a sector filter is designed in the frequency / wavenumber domain to retain the target frequency / wavenumber domain data in the sector area corresponding to the sector filter. The target frequency / wavenumber domain data is transformed back into the spatiotemporal domain to obtain the vehicle driving signal.

5. The method according to claim 1, characterized in that, The step of determining the vehicle's position and direction of travel based on the trigger time of the monitoring calibration point in the mine roadway according to the vehicle's driving signal includes: Virtual monitoring calibration points are set on the fiber optic channels corresponding to key locations during vehicle movement in mine roadways; wherein the key locations include at least one of the following: mine roadway entrance, mine roadway exit, and mine roadway passing point; When the vehicle driving signal passes through the key location, determine the time when the vehicle driving signal sequentially triggers adjacent monitoring calibration points; The vehicle's direction of travel is determined based on the time at adjacent key locations.

6. The method according to claim 5, characterized in that, The vehicle warning system includes: single-vehicle entry warning or two-way encounter warning, wherein: The single vehicle entry warning is based on detecting a vehicle entering at a key location at one end of a mine roadway. The two-way encounter warning system detects two vehicles traveling in opposite directions at key locations at both ends of a mine roadway.

7. The method according to claim 6, characterized in that, The response to the need for vehicle early warning, generating vehicle dispatch and early warning instructions for vehicle dispatch, includes: In response to the single vehicle entry warning, a prompting device is used at the other end of the mine roadway to provide a prompt until the vehicle leaves the mine roadway; In response to the two-way encounter warning, the positions and speeds of the two vehicles are calculated, the meeting point is predicted, and a passing scheme is determined at the passing point in the mine roadway.

8. A mine roadway traffic dispatching device, characterized in that, The device includes: The acquisition module is used to acquire continuous vibration signals monitored by the distributed fiber optic acoustic wave sensing system in the mine roadway. The identification module is used to filter the continuous vibration signal and then identify the vehicle driving signal to identify the vehicle driving signal. The first determining module is used to determine the vehicle's position and direction of travel based on the triggering time of the monitoring calibration point in the mine roadway according to the vehicle's driving signal. The second determining module is used to determine whether a vehicle warning is needed in the mine roadway based on the vehicle driving signal, the vehicle's position, and the driving direction. The scheduling module is used to generate vehicle scheduling and warning instructions in response to the need for vehicle warnings, so as to carry out vehicle scheduling.

9. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-7.

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