Residue soil bin height measuring method and equipment, soil bin and shield tunneling machine

Abstract

The invention provides a muck bin height measuring method and equipment, a muck bin and a shield tunneling machine, and relates to the technical field of shield tunneling machines. The method comprises the following steps: sequentially activating each group of vibration detection devices according to an installation sequence of a plurality of groups of vibration detection devices, obtaining a detection result of each group of activated vibration detection devices, and stopping until the detection results of two adjacent groups of activated vibration detection devices are detected to be different; wherein the multiple sets of vibration detection devices are used for being linearly arranged and installed on the back of a partition plate of the soil bin, the activated vibration detection devices are used for detecting the state of internal filler of the soil bin at the corresponding installation height, and the detection result is used for indicating that the state of the internal filler is muck or air; and according to the respective installation heights of the last two groups of activated vibration detection devices, the height of the position of the muck in the muck bin is calculated. According to the method provided by the invention, reliable and high-measurement-precision measurement of the position height of the muck in the muck bin is realized.

Description

Technical Field

[0001] The present application relates to the technical field of shield machines, and in particular to a method and device for measuring the height of a slag bin, a slag bin, and a shield machine. Background Art

[0002] During shield tunneling, the height of the soil silo within the shield machine's soil bunker directly impacts the support pressure at the tunnel face. Accurately measuring the soil silo height is crucial for monitoring the support status of the excavation face. This not only helps prevent risks such as surface subsidence or landslides caused by insufficient support, but is also a key factor in optimizing tunneling parameters such as the shield machine's cutterhead speed and thrust, ultimately improving construction efficiency.

[0003] Currently, methods for measuring the height of soil silos mainly include torque detection and machine vision. However, torque detection can only determine whether the silo is full and cannot provide specific height information. While machine vision can provide height information, its recognition accuracy is limited due to factors such as the complex internal environment and uneven lighting distribution. This leads to a certain false recognition rate, which affects the accuracy of soil silo height measurement.

[0004] Based on this, how to provide a reliable method for measuring the height of the slag bin in the soil bin with higher measurement accuracy is an urgent problem to be solved in this application. Summary of the Invention

[0005] The present application provides a method and device for measuring the height of a slag bin, a slag bin and a shield machine, which realize reliable and high-precision measurement of the height of the slag bin in the slag bin.

[0006] The first aspect of the present application provides a method for measuring the height of a slag bin, which is applied to a slag bin height measuring device of a slag bin height measuring device, wherein the slag bin height measuring device further includes multiple sets of vibration detection devices. The method includes:

[0007] Activate each group of vibration detection devices in sequence according to the order in which they are installed, and obtain a detection result from each activated group of vibration detection devices, stopping when the detection results of two adjacent activated groups of vibration detection devices differ. The multiple groups of vibration detection devices are linearly arranged and installed on the back of the partition of the soil bin. The activated vibration detection devices are used to detect the state of the internal filling of the soil bin at the corresponding installation height. The detection results are used to indicate whether the internal filling state is soil or air.

[0008] The height of the slag bin in the soil bin is calculated based on the installation heights of the last two groups of activated vibration detection devices.

[0009] In a possible design, the first vibration detection device is any group of the multiple groups of vibration detection devices except the first and last groups in the installation order;

[0010] When the first vibration detection device is determined to be the activated vibration detection device, activating each group of vibration detection devices in sequence according to the installation order of the multiple groups of vibration detection devices, and obtaining a detection result of each group of activated vibration detection devices, and stopping when detecting that the detection results of two adjacent groups of activated vibration detection devices are different, including:

[0011] sending a first instruction to the first vibration detection device; wherein the first instruction is used to instruct the first vibration detection device to enter an activated state; when the first vibration detection device enters the activated state, the first vibration detection device is used to cause the soil bin to generate mechanical vibration and detect the mechanical vibration echo of the soil bin;

[0012] Obtaining a frequency-amplitude diagram of a mechanical vibration echo fed back by the first vibration detection device;

[0013] Obtaining a detection result of the first vibration detection device based on a difference in physical characteristics of the frequency-amplitude graph of the first vibration detection device, wherein the physical characteristics include amplitude, frequency spectrum, and number of oscillations;

[0014] Determining whether the detection results of the first vibration detection device and the second vibration detection device are the same; wherein the installation order of the second vibration detection device is the previous one of the installation order of the first vibration detection device;

[0015] If so, the third vibration detection device is determined as the activated vibration detection device; wherein the installation order of the third vibration detection device is the next one after the installation order of the first vibration detection device.

[0016] In one possible design, each set of vibration detection devices includes an impact vibration source and a detection probe;

[0017] The impact vibration source is used to hammer the partition according to the preset time sequence pulse within the preset time period; each hammering causes periodic mechanical vibration in the soil bin;

[0018] When the impact source stops hammering, the detector probe is used to detect the mechanical vibration echo of the soil bin, and obtain the frequency amplitude diagram based on the mechanical vibration echo.

[0019] In one possible design, after obtaining a frequency-amplitude diagram of a mechanical vibration echo fed back by the first vibration detection device, the method further includes:

[0020] A second instruction is sent to the first vibration detection device, wherein the second instruction is used to instruct the first vibration detection device to exit an activated state.

[0021] In one possible design, the method further includes:

[0022] When the detection result of the activated vibration detection device indicates that the state of the internal filling is air, the detection result of the activated vibration detection device is mapped to a first label value; when the detection result of the activated vibration detection device indicates that the state of the internal filling is slag, the detection result of the activated vibration detection device is mapped to a second label value;

[0023] Determining whether the detection results of the first vibration detection device and the second vibration detection device are the same includes:

[0024] Inputting the first label value or the second label value mapped by the first vibration detection device and the second vibration detection device into a pre-trained support vector machine model to obtain a classification result output by the support vector machine model; wherein the support vector machine model is used to perform a binary classification task of the label value;

[0025] According to the classification result output by the support vector machine model, it is determined whether the detection results of the first vibration detection device and the second vibration detection device are classified into the same category.

[0026] A second aspect of the present application provides a slag bin height measurement device, the slag bin height measurement device comprising a slag bin height measurement device and multiple sets of vibration detection devices, the multiple sets of vibration detection devices being linearly arranged and mounted on the back of a partition of a slag bin;

[0027] A slag bunker height measuring device is used to execute the slag bunker height measuring method as described in any one of the first aspects.

[0028] In a possible design, the muck bin height measuring device further includes:

[0029] A data acquisition device, the data acquisition device is respectively connected to each group of vibration detection devices and slag bin height measurement devices;

[0030] The display is connected to the slag bin height measuring device for communication, and is used to display the slag bin height in the bin.

[0031] A third aspect of the present application provides a soil bin, which is equipped with a slag bin height measuring device as described in any one of the second aspects.

[0032] In one possible design, multiple groups of vibration detection devices of the slag bin height measurement equipment are installed at equal intervals in the vertical direction;

[0033] In the horizontal direction, the installation distance between the impact vibration source and the detection probe of each group of vibration detection devices is the same.

[0034] A fourth aspect of the present application provides a soil bin, wherein the shield machine is equipped with the soil bin as described in any one of the third aspects.

[0035] A fifth aspect of the present application provides a slag bunker height measuring device, wherein the slag bunker height measuring device is located in a slag bunker height measuring device, and the slag bunker height measuring device further includes multiple sets of vibration detection devices. The device includes:

[0036] a result detection module for sequentially activating each set of vibration detection devices in the order in which the multiple sets of vibration detection devices are installed, and obtaining a detection result from each activated set of vibration detection devices, until the detection results of two adjacent activated sets of vibration detection devices differ; wherein the multiple sets of vibration detection devices are linearly arranged and installed on the back of the partition of the soil bin, and the activated vibration detection devices are used to detect the state of the internal filling of the soil bin at the corresponding installation height, and the detection result is used to indicate whether the internal filling state is slag or air;

[0037] The height calculation module is used to calculate the height of the slag bin in the soil bin according to the installation heights of the last two groups of activated vibration detection devices.

[0038] A sixth aspect of the present application provides an electronic device, comprising: a memory, and a memory communicatively connected to a processor;

[0039] Memory stores computer-executable instructions;

[0040] When the processor executes the computer-executable instructions stored in the memory, it is used to implement the method for measuring the height of the slag bin of any one of the first aspects.

[0041] The seventh aspect of the present application provides a computer-readable storage medium, which stores computer execution instructions. When the computer execution instructions are executed by a processor, they are used to implement the method for measuring the height of a slag bin according to any one of the first aspects.

[0042] The eighth aspect of the present application provides a computer program product, including a computer program, which, when executed by a processor, is used to implement the method for measuring the height of a slag bin according to any one of the first aspects.

[0043] The present application provides a method and device for measuring the height of a slag bin, a slag bin, and a shield machine. The method comprises: activating each group of vibration detection devices in sequence according to the installation order of multiple groups of vibration detection devices, and obtaining the detection results of each group of activated vibration detection devices, and stopping when the detection results of two adjacent groups of activated vibration detection devices are different; wherein the multiple groups of vibration detection devices are used to be linearly arranged and installed on the back of the partition of the slag bin, and the activated vibration detection devices are used to detect the internal filling state of the slag bin at the corresponding installation height, and the detection results are used to indicate whether the internal filling state is slag or air; based on the installation heights of the last two groups of activated vibration detection devices, the height of the slag bin in the slag bin is calculated. The following technical effects are achieved: the height of the slag bin in the slag bin is calculated based on the detection results of the multiple groups of vibration detection devices, thereby achieving reliable and high-precision measurement of the height of the slag bin in the slag bin; the multiple groups of vibration detection devices are installed in a linear arrangement, achieving continuous detection of the height of the slag bin in different slag bins. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 Schematic diagram of the process of measuring the height of the slag bin provided in the embodiment of the present application Figure 1 ;

[0046] Figure 2 Schematic diagram of the process of measuring the height of the slag bin provided in the embodiment of the present application Figure 2 ;

[0047] Figure 3 A schematic diagram of the structure of a slag bin height measurement device provided in an embodiment of the present application;

[0048] Figure 4 Schematic diagram of the installation principle of the impact vibration source and detection probe provided in the embodiment of the present application;

[0049] Figure 5 A schematic diagram of the structure of a device for measuring the height of a slag bin provided in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0051] Reference numerals:

[0052] 310 - Muck bin height measuring equipment; 311 - Muck bin height measuring device; 312 - Vibration detection device; 3121 - Impact vibration source; 3122 - Detection probe; 313 - Data acquisition device; 314 - Display; 320 - Soil bin; 321 - Partition; 330 - Shield machine;

[0053] 510-result detection module; 520-height calculation module;

[0054] 610 - processor; 620 - memory; 630 - communication component; 640 - bus. DETAILED DESCRIPTION

[0055] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0056] In this application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be interpreted as being more preferred or advantageous than other embodiments or design. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way. In this application, "at least one" refers to one or more, and "more than one" refers to two or more.

[0057] It should be noted that the "at..." in this application can be the instant when a certain situation occurs, or it can be a period of time after a certain situation occurs, and this application does not make specific restrictions on this. In addition, the method for measuring the height of a slag bin provided in this application is only an example, and the method for measuring the height of a slag bin can also include more or less content. The user information (including but not limited to user device information and user personal information, etc.) and data (including but not limited to data used for analysis, stored data and displayed data, etc.) involved in one or more embodiments of this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0058] To facilitate a clear description of the technical solution of this application, the following briefly introduces some of the terms and technologies involved in this application:

[0059] The shield method is a modern tunnel construction method. It uses large-scale machinery, such as shield machines, to tunnel and support tunnels through soft soil or rock formations, completing the entire tunnel section in one go. The core principle is to use the shield machine's cutterhead to cut the soil, using the pressure of the soil in the silo to balance the water and soil pressure at the tunnel face. Simultaneously, prefabricated segments are assembled to form a permanent support structure.

[0060] A shield machine is a specialized tunnel construction machine that integrates excavation, support, and mucking functions. It consists of core components such as a cutterhead, soil bin, propulsion system, and segment assembly machine.

[0061] Soil bunker: This refers to the enclosed chamber located behind the cutterhead of the shield machine. Its main functions include storing soil, regulating pressure, and improving soil condition.

[0062] The tunnel face refers to the working surface directly impacted by the shield machine cutterhead during tunnel excavation, i.e., the front excavation face. The stability of the tunnel face depends on the dynamic balance between the pressure of the soil in the soil bin and the water and soil pressure in the stratum. Insufficient support at the tunnel face can easily lead to disasters such as stratum collapse or surface subsidence; otherwise, it can cause surface uplift or damage the tunnel segments.

[0063] In order to clearly understand the technical solution of the present application, the solution of the prior art is first introduced in detail.

[0064] During shield tunneling, the height of the soil silo within the shield machine's soil bunker directly impacts the support pressure at the tunnel face. Accurately measuring the soil silo height is crucial for monitoring the support status of the excavation face. This not only helps prevent risks such as surface subsidence or landslides caused by insufficient support, but is also a key factor in optimizing tunneling parameters such as the shield machine's cutterhead speed and thrust, ultimately improving construction efficiency.

[0065] At present, the methods for measuring the height of the slag bin in the soil bin mainly include torque detection technology and machine vision technology.

[0066] Torque detection technology specifically uses the different torques generated by blades rotating in different media to detect whether the soil bin is full. However, this technology has a complex mechanical structure and can only determine whether the soil bin is full, without providing specific height information, making it of limited use in guiding excavation progress.

[0067] Machine vision technology specifically involves capturing images of the interior of a soil silo using a camera, using a trained deep learning model to identify height markers placed within the silo, and then performing height measurement based on the number of detected markers. While this technology can provide height information, its accuracy is limited by factors such as the complex internal environment and uneven lighting distribution. This leads to a certain rate of false positives, which affects the accuracy of height measurement of the silo's slag level.

[0068] Based on this, how to provide a reliable method for measuring the height of the slag bin in the soil bin with higher measurement accuracy is an urgent problem to be solved in this application.

[0069] Therefore, in response to the above technical problems, it was found in the research that in order to solve the problem,

[0070] An embodiment of the present application provides a method for measuring the height of the slag bin in the soil bin of a shield machine based on active vibration source echo detection. The method is performed by installing multiple sets of impact vibration sources and detection probes at different height positions on the back of the shield machine soil bin partition. Specifically, the impact vibration source actively hammers the partition to generate mechanical vibrations of a specific frequency and intensity, and the detection probe detects the echo reflected by the inner wall of the soil bin. Afterwards, based on the different wave impedances between the slag on the inner wall of the soil bin and the partition, and between the air and the partition, a support vector machine is used to analyze the differences in the performance of the echo in the frequency, amplitude, and main peak oscillation number and other physical characteristics on the amplitude-frequency diagram, and accurately judge whether the slag bin in the soil bin has reached the corresponding detection probe height position, thereby achieving reliable and high-precision measurement of the slag bin height in the soil bin.

[0071] Based on the above creative findings, the technical solution of the present application is proposed.

[0072] The technical solution of the present application is described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0073] Figure 1 Schematic diagram of the process of measuring the height of the slag bin provided in the embodiment of the present application Figure 1 .like Figure 1 As shown, in an embodiment of the present application, the method is applied to a slag bin height measuring device of a slag bin height measuring device. The slag bin height measuring device can be located in an electronic device, which can be a data processing server. The slag bin height measuring device also includes multiple sets of vibration detection devices. The slag bin height measuring method provided in the embodiment of the present application includes the following steps:

[0074] S101. Activate each group of vibration detection devices in sequence according to the installation order of the multiple groups of vibration detection devices, and obtain the detection results of each group of activated vibration detection devices, and stop when it is detected that the detection results of two consecutive groups of activated vibration detection devices are different.

[0075] Specifically, multiple groups of vibration detection devices are used to be linearly arranged and installed on the back of the partition of the soil bin. The slag bin height measuring device starts from the vibration detection device at the bottom of the soil bin and activates each group of vibration detection devices upward in sequence, or starts from the vibration detection device at the top of the soil bin and activates each group of vibration detection devices downward in sequence.

[0076] The activated vibration detection device is used to detect the state of the soil silo's internal filling at the corresponding installation height. When the soil silo's height is higher than the vibration detection device's corresponding installation height, the structure at that installation height consists of a partition and soil. Conversely, when the soil silo's height is lower than the vibration detection device's corresponding installation height, the structure at that installation height consists of a partition and air. Because the wave impedance of soil is significantly higher than that of air, the soil silo's height measurement device can accurately determine the vibration detection device's detection result based on the mechanical vibration echo at that installation height. The detection result indicates whether the internal filling state is soil or air.

[0077] When the detection results of two consecutive groups of activated vibration detection devices are different, that is, one detection result indicates that the internal filling state is slag, and the other detection result indicates that the internal filling state is air, the slag bin height measuring device stops activating subsequent vibration detection devices.

[0078] S102: Calculate the height of the slag soil position in the soil bin according to the installation heights of the last two groups of activated vibration detection devices.

[0079] Specifically, when the kth group of vibration detection devices detects soil and the k+1th group of vibration detection devices above it detects air, or when the kth group of vibration detection devices detects air and the k+1th group of vibration detection devices below it detects soil, this indicates that the soil level in the soil bin is between the installation heights of the kth and k+1th groups of vibration detection devices. Based on this detection result, the soil level in the soil bin can be calculated based on the installation heights of the kth and k+1th groups of vibration detection devices. The soil level in the soil bin may be equal to the installation height of either the kth or k+1th groups of vibration detection devices, or it may be somewhere between the installation heights of these two groups of vibration detection devices.

[0080] Furthermore, the calculation accuracy of the height of the slag bin in the soil bin is positively correlated with the installation height spacing of multiple groups of vibration detection devices. Specifically, multiple groups of vibration detection devices can be installed at equal intervals. The smaller the spacing, the higher the calculation accuracy of the height of the slag bin in the soil bin; and the larger the spacing, the lower the calculation accuracy of the height of the slag bin in the soil bin. Multiple groups of vibration detection devices can also be installed at unequal intervals based on empirical data. For example, the installation spacing can be adjusted according to the probability of occurrence of different heights of the slag bin in the soil bin during operation. For those heights of the slag bin in the soil bin with a higher probability of occurrence, the vibration detection devices are installed at a smaller spacing; and for those heights of the slag bin in the soil bin with a lower probability of occurrence, the vibration detection devices are installed at a larger spacing. By adjusting the installation height spacing, not only the calculation accuracy of the height of the slag bin in the soil bin is adjusted, but it also helps to plan the layout of the vibration detection devices more reasonably.

[0081] An embodiment of the present application provides a method for measuring the height of a slag bin, comprising: activating each set of vibration detection devices in the order in which they are installed, obtaining detection results from each activated set of vibration detection devices, and stopping when the detection results of two adjacent sets of activated vibration detection devices differ; wherein the multiple sets of vibration detection devices are linearly arranged and installed on the back of a partition of a slag bin; the activated vibration detection devices are used to detect the state of the internal filling material of the slag bin at corresponding installation heights, and the detection results are used to indicate whether the internal filling material is slag or air; and the height of the slag bin in the slag bin is calculated based on the installation heights of the last two sets of activated vibration detection devices. The method achieves the following technical effects: the height of the slag bin in the slag bin is calculated based on the detection results of the multiple sets of vibration detection devices, thereby achieving reliable and high-precision measurement of the height of the slag bin in the slag bin; and the multiple sets of vibration detection devices are linearly arranged and installed, achieving continuous detection of the height of the slag bin in different slag bins.

[0082] Figure 2 Schematic diagram of the process of measuring the height of the slag bin provided in the embodiment of the present application Figure 2 ,like Figure 2 As shown, the method for measuring the height of the slag bin provided in the embodiment of the present application is Figure 1 Based on the method for measuring the height of a slag bin provided in the embodiment, this embodiment further refines the method. For example, starting with the vibration detection device at the top of the slag bin and sequentially activating each group of vibration detection devices downward, the first vibration detection device is any group of multiple vibration detection devices except the first and last groups installed in the order. When the first vibration detection device is determined to be the activated vibration detection device, S101 includes the following steps.

[0083] S201: Send a first instruction to a first vibration detection device.

[0084] Specifically, the first instruction is used to instruct the first vibration detection device to enter an activation state; when the first vibration detection device enters the activation state, the first vibration detection device is used to generate mechanical vibration in the soil bin and detect the mechanical vibration echo of the soil bin;

[0085] In a possible design, each set of vibration detection devices includes an impact vibration source and a detection probe.

[0086] Specifically, the impact vibration source and the detection probe of the first vibration detection device start working. The impact vibration source is used to hammer the partition according to the preset timing pulse within a preset time period. Specifically, the partition can be hammered at a specific frequency and intensity according to the timing pulse coding. Each hammering causes periodic mechanical vibration in the soil bin.

[0087] When mechanical vibration propagates from the impact point on the back of the partition to the interface between the inner wall of the soil bin and the soil or air, varying degrees of reflection and transmission occur due to the different wave impedances of the two internal filling materials at this interface. After the impact source stops hammering, the detector probe is used to detect the mechanical vibration echo from the soil bin, specifically within a certain range of angles to reduce the influence of interference signals from other vibration sources. The detector probe is also used to generate a frequency-amplitude diagram based on the mechanical vibration echo.

[0088] S202: Acquire a frequency-amplitude diagram of the mechanical vibration echo fed back by the first vibration detection device.

[0089] S203: Send a second instruction to the first vibration detection device.

[0090] Specifically, the second instruction is used to instruct the first vibration detection device to deactivate. Multiple groups of vibration detection devices are then activated sequentially in the order they are installed, from top to bottom. Only one group of vibration detection devices is activated at a time, and the other groups of vibration detection devices must be inactive or deactivated.

[0091] Furthermore, only one impact source or detector probe can be active at a time; the others must be inactive or deactivated. This ensures the accuracy and reliability of frequency-amplitude graph acquisition and effectively prevents signal confusion or interference that could arise from multiple impact sources or detector probes operating simultaneously.

[0092] S204 : Obtain a detection result of the first vibration detection device according to a difference in physical characteristics of the frequency-amplitude diagram of the first vibration detection device.

[0093] Specifically, when the height of the slag bin in the soil bin is lower than the installation position of the first vibration detection device, the mechanical vibration propagates from the hammering point on the back of the partition to the interface between the inner wall of the soil bin and the air. Since the wave impedance of the air is lower than the wave impedance of the slag, the mechanical vibration is almost totally reflected at the interface, forming a mechanical vibration echo. This echo may cause a ringing effect during multiple reflections. The physical characteristics include amplitude, spectrum, and number of oscillations. The physical characteristics of the echo are manifested in the frequency-amplitude diagram as follows: the peak amplitude of the main peak is close to the original impact signal, the high-frequency component is attenuated, and the main reflection peak is sharp, with more than 2 high-frequency oscillations.

[0094] When the height of the slag in the silo is higher than the installation location of the first vibration detection device, mechanical vibration propagates from the impact point on the back of the partition to the interface between the silo's inner wall and the slag. Because the impedance of the slag is higher than that of air, only a portion of the mechanical vibration is reflected back from the slag. The remaining mechanical vibration is transmitted into the slag, and due to the damping properties of the slag, the transmitted mechanical vibration quickly decays. The physical characteristics of this echo are reflected in the frequency-amplitude graph: the peak amplitude of the main peak is significantly lower than that of the original impact signal, the main peak is single and decays rapidly, and the low-frequency components dominate the mechanical vibration echo.

[0095] In one possible design, when the detector probe detects mechanical vibration echoes, it may also detect interference signals from other vibration sources, such as vibrations generated by other operating components on the shield machine. This results in the mechanical vibration detected by the detector probe being a composite signal mixed with interference from other vibration sources. Therefore, the detector probe must pre-collect the interference signals generated by the interfering vibration sources during shield machine operation and transmitted to the detector probe. This is then used to separate the mechanical vibration echoes from the composite signal during subsequent measurements.

[0096] Based on the above physical characteristics, the slag bin height measurement device filters the frequency amplitude diagram of the first vibration detection device. The filtering formula is expressed as:

[0097]

[0098]

[0099]

[0100] in, represents the time domain signal of the active vibration source, represents the frequency domain signal of the active vibration source, Refers to the time domain signal of the interference source, represents the frequency domain signal of the interference source, represents the fast Fourier transform, represents the filtered frequency domain signal, Indicates a small constant that is preset to prevent the denominator from being zero.

[0101] S205. When the detection result of the activated vibration detection device indicates that the state of the internal filling material is air, the detection result of the activated vibration detection device is mapped to a first label value; when the detection result of the activated vibration detection device indicates that the state of the internal filling material is slag, the detection result of the activated vibration detection device is mapped to a second label value.

[0102] Specifically, the slag bin height measurement device will generate a frequency amplitude diagram indicating that the internal filling material is in the air state, and after dimensional transformation, a data set D1 for training a binary support vector machine (SVM) is produced. The label of the data set D1 is that the height of the slag bin in the silo is lower than the installation position of the activated vibration detection device, and the detection result of the activated vibration detection device is mapped to a first label value, for example, mapped to 1.

[0103] Similarly, the slag bin height measuring device will indicate the frequency amplitude diagram of the internal filling material state as slag, and after dimensional transformation, produce a data set D2 for training the binary classification SVM. The label of the data set D2 is that the height of the slag bin in the silo is higher than the installation position of the activated vibration detection device, and the detection result of the activated vibration detection device is mapped to a second label value, for example, mapped to 0.

[0104] After S205 is executed, it is determined whether the detection results of the first vibration detection device and the second vibration detection device are the same; wherein the installation order of the second vibration detection device is the previous one of the installation order of the first vibration detection device.

[0105] In one possible design, determining whether the detection results of the first vibration detection device and the second vibration detection device are the same includes:

[0106] S206 : Input the first label value or the second label value mapped by the first vibration detection device and the second vibration detection device respectively into a pre-trained support vector machine model to obtain a classification result output by the support vector machine model.

[0107] S207 : Determine, based on the classification result output by the support vector machine model, whether the detection results of the first vibration detection device and the second vibration detection device are classified into the same category.

[0108] Specifically, a support vector machine (SVM) model is constructed, and the datasets D1 and D2 are combined with the separation maximization method to train the SVM model to obtain the optimal separation hyperplane. The support vector machine model is used to perform the binary classification task of the label value.

[0109] If the second vibration detection device is installed before the first vibration detection device, the detection result of the second vibration detection device is mapped to 1. When the first vibration detection device enters the active state, the frequency amplitude graph of the first vibration detection device is filtered and preprocessed before being input into the pre-trained SVM model to achieve automatic analysis and judgment of the detection results.

[0110] If so, that is, the detection results of the first vibration detection device and the second vibration detection device are both mapped to 1 and are classified into the same category, then continue to execute S208; if not, that is, the detection result of the first vibration detection device is mapped to 0 and the detection result of the second vibration detection device is mapped to 1 and are not classified into the same category, then continue to execute S209.

[0111] S208: Determine the third vibration detection device as the activated vibration detection device.

[0112] The installation order of the third vibration detection device is the next one after the installation order of the first vibration detection device.

[0113] S209: Stop triggering the vibration detection devices that are not activated subsequently.

[0114] In one possible design, when multiple groups of vibration detection devices of the slag bin height measuring equipment are installed at equal intervals in the vertical direction, after executing S209, the slag bin height in the soil bin is calculated based on the respective installation heights of the first vibration detection device and the second vibration detection device.

[0115] Specifically, the calculation formula for the height h of the slag bin in the soil bin is:

[0116]

[0117] Wherein, d represents the distance between two adjacent groups of vibration detection devices in the vertical direction, specifically, the distance between the respective detection probes of the two adjacent groups of vibration detection devices; R represents the radius of the soil bin; and n represents the number of the first vibration detection device, that is, the number of bits of the first vibration detection device in multiple groups of vibration detection devices.

[0118] In one possible design, for the vibration detection device that is the last in the installation order, when the detection results of this vibration detection device and the previous vibration detection device are classified into the same category, the height of the slag bin in the soil bin can be directly determined as zero, the installation height of the vibration detection device, or a value between the two.

[0119] The technical effects of the embodiments of the present application are: determining the height of the slag bin in the soil bin by mechanical vibration echo, and the detection results are not affected by factors such as the internal environment of the soil bin and the light distribution, thereby improving the versatility of the slag bin height measurement; judging whether the slag bin height in the soil bin is higher than the installation position of the activated vibration detection device by the differences in physical properties such as amplitude, spectrum and number of oscillations in the frequency amplitude diagram, thereby improving the accuracy of the slag bin height measurement.

[0120] The present application also provides a device for measuring the height of a slag bin. Figure 3 This is a schematic diagram of the structure of the slag bin height measurement device provided in the embodiment of this application. Figure 3 As shown, in the embodiment of the present application, the slag bin height measuring device 310 includes a slag bin height measuring device 311 and multiple sets of vibration detection devices 312. The multiple sets of vibration detection devices 312 are linearly arranged and installed on the back of the partition 321 of the soil bin 320.

[0121] The slag bunker height measuring device 311 is used to execute the slag bunker height measuring method of the above embodiment.

[0122] The implementation principle and technical effect of the slag bin height measurement device provided in the embodiment of the present application are similar to Figure 1 and Figure 2 The method embodiments shown are similar and will not be described in detail in the embodiments of this application.

[0123] In a possible design, each set of vibration detection devices 312 includes an impact vibration source 3121 and a detection probe 3122;

[0124] The impact vibration source 3121 is used to hammer the partition 321 according to a preset time sequence pulse within a preset time period; each hammering causes periodic mechanical vibration in the soil bin 320;

[0125] After the impact source 3121 stops hammering, the detection probe 3122 is used to detect the mechanical vibration echo of the soil bin 320, and obtain a frequency amplitude diagram based on the mechanical vibration echo.

[0126] In a possible design, the muck bin height measuring device 310 further includes:

[0127] A data acquisition device 313, the data acquisition device 313 is respectively connected to each group of vibration detection devices 312 and the slag bin height measurement device 311;

[0128] The display 314 is in communication with the slag bin height measuring device 311 , and is used to display the slag bin height in the bin.

[0129] Specifically, the data acquisition device is connected to each detector probe 3122 and the muck bin height measurement device, collecting frequency-amplitude graphs from the detector probes 3122 and transmitting them to the muck bin height measurement device. The display also displays these frequency-amplitude graphs, facilitating subsequent echo data analysis and visualization.

[0130] The implementation principle and technical effect of the slag bin height measurement device provided in the embodiment of the present application are similar to Figures 1 to 2 The method embodiments shown are similar and will not be described in detail in the embodiments of this application.

[0131] The present application also provides a soil warehouse. Figure 3 As shown, in the embodiment of the present application, the soil bin 320 is installed with the slag bin height measuring device 310 of the above embodiment.

[0132] The implementation principle and technical effects of the soil bin provided in the embodiment of the present application are similar to those of the above-mentioned equipment embodiment, and will not be repeated in detail in the embodiment of the present application.

[0133] In one possible design, in the vertical direction, multiple groups of vibration detection devices 312 of the slag bin height measurement device 310 are installed at equal intervals;

[0134] In the horizontal direction, the installation distance between the impact vibration source 3121 and the detection probe 3122 of each group of vibration detection devices 312 is the same.

[0135] Specifically, the number of impact vibration sources 3121 and detection probes 3122 is determined according to the soil bin height of the shield machine 330 and the specified installation spacing.

[0136] Figure 4 This is a schematic diagram of the installation principle of the impact vibration source and the detection probe provided in the embodiment of the present application. Figure 3 and Figure 4 As shown, when the impact source 3121 and the detection probe 3122 of the same group are installed, they are arranged horizontally with the impact source 3121 on the left and the detection probe 3122 on the right. The impact source 3121 and the detection probe 3122 are arranged at a fixed distance in the horizontal direction. When the impact sources 3121 and the detection probe 3122 of different groups are installed, they are separated by a specified distance in the vertical direction. The impact sources 3121 and the detection probe 3122 are all installed perpendicular to the partition 321. The detection probes 3122 are numbered consecutively starting from 0 from top to bottom according to their vertical installation height.

[0137] The present application also provides a shield machine. Figure 3 As shown, in the embodiment of the present application, the shield machine 330 is equipped with the soil bin 320 of the above embodiment.

[0138] The implementation principle and technical effects of the shield machine provided in the embodiment of the present application are similar to those in the above-mentioned equipment embodiment, and will not be repeated in the embodiment of the present application.

[0139] Figure 5 A schematic diagram of the structure of the slag bin height measuring device provided in the embodiment of the present application is shown as follows: Figure 5 As shown, in the embodiment of the present application, the slag bunker height measuring device is located in the slag bunker height measuring equipment, and the slag bunker height measuring equipment further includes multiple sets of vibration detection devices, and the device includes:

[0140] Result detection module 510 is configured to sequentially activate each set of vibration detection devices in the order in which the multiple sets of vibration detection devices are installed, and obtain detection results from each activated set of vibration detection devices, stopping when the detection results of two adjacent sets of activated vibration detection devices differ. The multiple sets of vibration detection devices are linearly arranged and installed on the back of the partitions of the soil bin. The activated vibration detection devices are configured to detect the state of the filling material inside the soil bin at the corresponding installation height. The detection results are used to indicate whether the filling material is soil or air.

[0141] The height calculation module 520 is used to calculate the height of the slag bin in the soil bin according to the installation heights of the last two groups of activated vibration detection devices.

[0142] The device for measuring the height of the slag bin provided in the embodiment of the present application can be performed Figure 1 The technical solution of the method embodiment shown in the figure has the same implementation principle and technical effect as Figure 1 The method embodiments shown are similar and will not be described in detail in the embodiments of this application.

[0143] At the same time, the slag bin height measuring device provided in the embodiment of the present application is further refined based on the slag bin height measuring device provided in the embodiment of the previous application.

[0144] In a possible design, the first vibration detection device is any group of the multiple groups of vibration detection devices except the first and last groups in the installation order;

[0145] When the first vibration detection device is determined to be the activated vibration detection device, the result detection module 510 includes:

[0146] a first instruction module, configured to send a first instruction to the first vibration detection device; wherein the first instruction is configured to instruct the first vibration detection device to enter an activated state; when the first vibration detection device enters the activated state, the first vibration detection device is configured to cause the soil bin to generate mechanical vibrations and detect mechanical vibration echoes of the soil bin;

[0147] An image acquisition module, configured to acquire a frequency-amplitude diagram of a mechanical vibration echo fed back by the first vibration detection device;

[0148] a difference detection module, configured to obtain a detection result of the first vibration detection device based on a difference in physical characteristics of the frequency-amplitude graph of the first vibration detection device, wherein the physical characteristics include amplitude, frequency spectrum, and number of oscillations;

[0149] A first judgment module is configured to judge whether the detection results of the first vibration detection device and the second vibration detection device are the same; wherein the second vibration detection device is installed in a sequence that precedes the first vibration detection device;

[0150] The device updating module is configured to, if yes, determine the third vibration detection device as the activated vibration detection device; wherein the installation order of the third vibration detection device is the next one after the installation order of the first vibration detection device.

[0151] In one possible design, each set of vibration detection devices includes an impact vibration source and a detection probe;

[0152] The impact vibration source is used to hammer the partition according to the preset time sequence pulse within the preset time period; each hammering causes periodic mechanical vibration in the soil bin;

[0153] When the impact source stops hammering, the detector probe is used to detect the mechanical vibration echo of the soil bin, and obtain the frequency amplitude diagram based on the mechanical vibration echo.

[0154] In a possible design, the slag bin height measuring device further includes:

[0155] The second instruction module is used to send a second instruction to the first vibration detection device; wherein the second instruction is used to instruct the first vibration detection device to exit the activation state.

[0156] In a possible design, the slag bin height measuring device further includes:

[0157] a label mapping module, configured to map the detection result of the activated vibration detection device to a first label value when the detection result of the activated vibration detection device indicates that the state of the internal filling is air; and to map the detection result of the activated vibration detection device to a second label value when the detection result of the activated vibration detection device indicates that the state of the internal filling is slag;

[0158] The first judgment module includes:

[0159] A binary classification module is configured to input the first label value or the second label value mapped by the first vibration detection device and the second vibration detection device into a pre-trained support vector machine model to obtain a classification result output by the support vector machine model; wherein the support vector machine model is configured to perform a binary classification task of the label value;

[0160] The second judgment module is used to judge whether the detection results of the first vibration detection device and the second vibration detection device are classified into the same category according to the classification result output by the support vector machine model.

[0161] The device for measuring the height of the slag bin provided in the embodiment of the present application can be used to Figures 1 to 2 The technical solution of the method embodiment shown in the figure has the same implementation principle and technical effect as Figures 1 to 2 The method embodiments shown are similar and will not be described in detail in the embodiments of this application.

[0162] The embodiment of the present application also provides an electronic device, Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 6 As shown, the electronic device includes: at least one processor 610 and a memory 620. The electronic device also includes a communication component 630. The processor 610, the memory 620 and the communication component 630 are connected via a bus 640.

[0163] During the specific implementation process, at least one processor 610 executes the computer execution instructions stored in the memory 620, so that the at least one processor 610 is used to implement the method for measuring the height of the slag bin of the above embodiment.

[0164] The specific implementation process of the processor 610 can be found in the above-mentioned method embodiment. Its implementation principle and technical effects are similar, and the embodiments of this application will not be repeated here.

[0165] In the above embodiment, it should be understood that the processor 610 may be a central processing unit (CPU), or other general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), etc. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the application may be directly executed by a hardware processor or by a combination of hardware and software modules in the processor.

[0166] The memory 620 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage.

[0167] Bus 640 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Bus 640 can be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, the bus 640 in the drawings of this application is not limited to a single bus or a single type of bus.

[0168] The above functions implemented by the electronic device and the main control device have been used to introduce the solutions provided in the embodiments of the present application. It is understandable that, in order to implement the above functions, the electronic device or the main control device includes hardware structures and / or software modules corresponding to the execution of each function. In combination with the units and algorithm steps of the various examples described in the embodiments disclosed in the embodiments of the present application, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of the present application.

[0169] The present application also provides a computer-readable storage medium storing computer-executable instructions. When executed by a processor, the computer-executable instructions implement the method for measuring the height of a slag bin described in the above embodiment. In the specific implementation of the method for measuring the height of a slag bin described above, each module may be implemented as a processor.

[0170] The readable storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0171] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Alternatively, the readable storage medium may be an integral part of the processor. The processor and the readable storage medium may be located in an application-specific integrated circuit (ASIC). Alternatively, the processor and the readable storage medium may be present as discrete components in an electronic device or a host control device.

[0172] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, is used to implement the method for measuring the height of a slag bin in the above embodiment.

[0173] The computer program is stored in a readable storage medium. At least one processor can read the computer program from the readable storage medium, and at least one processor can execute the computer program to perform the solution provided in any of the above embodiments.

[0174] Those skilled in the art will appreciate that all or part of the steps in implementing the aforementioned embodiments of the application can be accomplished by hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the aforementioned method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0175] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for measuring the height of a slag bin, characterized in that: The method is applied to a slag bunker height measuring device of a slag bunker height measuring device, and the slag bunker height measuring device further includes multiple groups of vibration detection devices. The method includes: Activating each group of vibration detection devices in sequence according to the order in which the multiple groups of vibration detection devices are installed, and obtaining detection results from each activated group of vibration detection devices, until the detection results of two adjacent groups of activated vibration detection devices are different; wherein the multiple groups of vibration detection devices are linearly arranged and installed on the back of the partition of the soil bin, and the activated vibration detection devices are used to detect the state of the internal filling of the soil bin at the corresponding installation height, and the detection results are used to indicate whether the internal filling state is soil or air; The height of the slag soil position in the soil bin is calculated based on the respective installation heights of the last two groups of activated vibration detection devices.

2. The method for measuring the height of a slag bin according to claim 1, characterized in that: The first vibration detection device is any one of the plurality of vibration detection devices except the first and last ones in the installation order; When the first vibration detection device is determined to be the activated vibration detection device, activating each group of the vibration detection devices in sequence according to the installation order of the multiple groups of vibration detection devices, and obtaining a detection result of each group of activated vibration detection devices, and stopping when detecting that the detection results of two adjacent groups of activated vibration detection devices are different, includes: sending a first instruction to the first vibration detection device; wherein the first instruction is used to instruct the first vibration detection device to enter an activated state; when the first vibration detection device enters the activated state, the first vibration detection device is used to cause the soil bin to generate mechanical vibration and detect the mechanical vibration echo of the soil bin; Acquire a frequency-amplitude diagram of the mechanical vibration echo fed back by the first vibration detection device; Obtaining a detection result of the first vibration detection device based on a difference in physical characteristics of the frequency-amplitude diagram of the first vibration detection device, wherein the physical characteristics include amplitude, frequency spectrum, and number of oscillations; Determining whether the detection results of the first vibration detection device and the second vibration detection device are the same; wherein the second vibration detection device is installed in a sequence that precedes the first vibration detection device; If so, the third vibration detection device is determined as the activated vibration detection device; wherein the installation order of the third vibration detection device is the next one after the installation order of the first vibration detection device.

3. The method for measuring the height of a slag bin according to claim 2, characterized in that: Each group of the vibration detection devices includes an impact vibration source and a detection probe; The impact vibration source is used to hammer the partition according to a preset time sequence pulse within a preset time period; each hammering causes periodic mechanical vibration to be generated in the soil bin; When the impact vibration source stops hammering, the detection probe is used to detect the mechanical vibration echo of the soil bin, and obtain a frequency amplitude diagram based on the mechanical vibration echo.

4. The method for measuring the height of a slag bin according to claim 2 or 3, characterized in that: After obtaining the frequency-amplitude diagram of the mechanical vibration echo fed back by the first vibration detection device, the method further includes: A second instruction is sent to the first vibration detection device, wherein the second instruction is used to instruct the first vibration detection device to exit the activation state.

5. The method for measuring the height of a slag bin according to claim 2 or 3, characterized in that: The method further comprises: When the detection result of the activated vibration detection device indicates that the state of the internal filling is air, mapping the detection result of the activated vibration detection device to a first label value; when the detection result of the activated vibration detection device indicates that the state of the internal filling is slag, mapping the detection result of the activated vibration detection device to a second label value; The determining whether the detection results of the first vibration detection device and the second vibration detection device are the same includes: Inputting the first label value or the second label value mapped by the first vibration detection device and the second vibration detection device into a pre-trained support vector machine model to obtain a classification result output by the support vector machine model; wherein the support vector machine model is used to perform a binary classification task of the label value; According to the classification result output by the support vector machine model, it is determined whether the detection results of the first vibration detection device and the second vibration detection device are classified into the same category.

6. A device for measuring the height of a slag bin, characterized in that: The slag bin height measuring device includes a slag bin height measuring device and multiple sets of vibration detection devices, which are linearly arranged and installed on the back of the partition of the soil bin; The slag bunker height measuring device is used to execute the slag bunker height measuring method according to any one of claims 1 to 5.

7. The slag bunker height measuring device according to claim 6, characterized in that: The slag bin height measuring device also includes: A data acquisition device, the data acquisition device being communicatively connected to each group of the vibration detection device and the slag bin height measuring device; A display is communicatively connected to the slag bin height measuring device, and the display is used to display the slag bin height in the slag bin.

8. A soil bin, characterized in that: The soil bin is equipped with the slag bin height measuring device as described in claim 6 or 7.

9. The soil bin according to claim 8, characterized in that: In the vertical direction, the multiple groups of vibration detection devices of the slag bin height measuring equipment are installed at equal intervals; In the horizontal direction, the installation distance between the impact vibration source and the detection probe of each group of the vibration detection devices is the same.

10. A shield machine, characterized in that: The shield machine is equipped with the soil bin as claimed in claim 8 or 9.

Images