Method and device for determining the operating state of a support column safety valve

Abstract

The application provides a method and a device for determining the running state of a support column safety valve. The method comprises obtaining pressure data of the support column safety valve at multiple time nodes; obtaining the number of times when the first effective data is less than the opening threshold and the second effective data is greater than the opening threshold to obtain a first count result, obtaining the number of times when the first effective data is greater than the opening threshold and the second effective data is less than the opening threshold to obtain a second count result, obtaining the number of times when the first effective data is greater than the closing threshold and the second effective data is less than the closing threshold to obtain a third count result, and obtaining the number of times when the first effective data is less than the closing threshold and the second effective data is greater than the closing threshold to obtain a fourth count result; and determining the running state of the support column safety valve according to the first count result, the second count result, the third count result and the fourth count result. The method solves the problem that the running state of the support column safety valve cannot be accurately monitored in the prior art.

Description

Technical Field

[0001] This application relates to the field of coal mine safety mining technology, and more specifically, to a method, device, computer-readable storage medium, processor, and system for determining the operating status of a support column safety valve. Background Technology

[0002] There are many methods for monitoring the operating status of safety valves on the support columns of fully mechanized coal mining faces. The main methods involve using specialized monitoring systems for pressure testing and calibration with professional tools. Other methods utilize pressure sensor data from the support columns. However, the specific data processing methods and business logic for extracting operating status vary. In particular, a lack of thorough understanding of the business logic can lead to a flawed data extraction process, resulting in low data accuracy and limited applicability.

[0003] Hydraulic supports are one of the core pieces of equipment in mechanized longwall mining faces. The safety valve installed on the support column is an important component of the hydraulic support, used to limit the actual working resistance of the hydraulic support so that it does not exceed the allowable value. During the actual operation of the hydraulic support, when the pressure from the top plate suddenly drops, the piston rod of the support descends accordingly, causing the emulsion pressure inside the column to rise rapidly. The working fluid enters from the inlet of the safety valve and acts on the end faces of the small and large valve cores of the safety valve. At the same time, the emulsion acts on the annular area of ​​the differential structure through the damping orifice of the main valve core. As the piston rod of the hydraulic support descends further, when the pressure inside the column rises to the opening pressure of the small valve core, the small valve core begins to overflow, allowing the working fluid to flow out from the outlet, ensuring pressure stability. As the piston rod continues to descend and the pressure continues to rise, the small valve core gradually opens fully but is not yet unloaded, and the pressure inside the column continues to rise. When it reaches the opening pressure of the large valve core, the large valve core also begins to overflow, so that most of the emulsion is discharged through the outlet of the large valve core, and the column sinks again, thus ensuring the working state of the hydraulic support. When the top plate sinks and the safety valve overflows to a certain extent, the pressure drops to the closing pressure, and the safety valve will stop leaking and reset.

[0004] The information disclosed above in the background section is only intended to enhance the understanding of the background art of the art described herein. Therefore, the background art may contain certain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0005] The main objective of this application is to provide a method, device, computer-readable storage medium, processor, and system for determining the operating status of a support column safety valve, so as to solve the problem that the operating status of a support column safety valve cannot be accurately monitored in the prior art.

[0006] According to one aspect of the present invention, a method for determining the operating state of a support column safety valve is provided. The hydraulic support includes a support column safety valve, comprising: acquiring pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value; acquiring the number of times a first valid data is less than an opening threshold and a second valid data is greater than the opening threshold to obtain a first counting result; acquiring the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result; acquiring the number of times the first valid data is greater than a closing threshold and the second valid data is less than the closing threshold to obtain a third counting result; acquiring the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result, wherein the opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve; the first valid data and the second valid data are pressure data of the support column safety valve at any two adjacent time points; and determining the operating state of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0007] Optionally, the operating state of the support column safety valve is determined based on the first counting result, the second counting result, the third counting result, and the fourth counting result. The operating state of the support column safety valve includes a normal operating state, an abnormal opening state, and an abnormal closing state. Specifically: if all three conditions are met (first, second, third, and fourth), the operating state of the support column safety valve is determined to be normal operating, and a message notification indicating normal operating of the support column safety valve is pushed. The first counting condition is that the first counting result is greater than zero; the second counting condition is that the second counting result is greater than zero; the third counting condition is that the third counting result is greater than zero; and the fourth counting condition is that the fourth counting result is greater than zero. If at least one of the first and second counting conditions is not met, the operating state of the support column safety valve is determined to be abnormal opening, and a message notification indicating abnormal opening of the support column safety valve is pushed. If at least one of the third and fourth counting conditions is not met, the operating state of the support column safety valve is determined to be abnormal closing, and a message notification indicating abnormal closing of the support column safety valve is pushed.

[0008] Optionally, after determining the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result, the method further includes: if the pressure data of the support column safety valve at the current time node is less than a preset value, sending a message notification to lower the target hydraulic support, wherein the target hydraulic support is the hydraulic support to which the support column safety valve belongs.

[0009] Optionally, after sending a message notification to lower the target hydraulic support, the method includes: storing the first counting result; storing the operating status of the support column safety valve; and clearing the first counting result, the second counting result, the third counting result, and the fourth counting result to zero.

[0010] Optionally, the operating status of the support column safety valve also includes a parameter abnormality state, wherein the parameter abnormality state is when the opening threshold is less than the closing threshold. After sending a message notification of the target hydraulic support lowering, the method further includes: obtaining the first count result of two pressure-increasing processes, wherein the pressure-increasing process includes multiple time nodes between the time nodes corresponding to two adjacent time nodes of the target hydraulic support lowering; if the first count result of both pressure-increasing processes is zero, determining that the operating status of the support column safety valve is the parameter abnormality state, and pushing a message notification of the abnormal setting parameters of the support column safety valve.

[0011] Optionally, after acquiring the effective pressure data of the support column safety valve at multiple time points, the method further includes: compressing the pressure data of the support column safety valve at each of the time points, wherein the compressed effective pressure data of the support column safety valve includes at least the waveform feature data of the pressure data of the support column safety valve.

[0012] According to another aspect of the present invention, a device for determining the operating state of a support column safety valve is also provided. The hydraulic support includes a support column safety valve, comprising: an acquisition unit, configured to acquire pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value; and a counting unit, configured to acquire the number of times a first valid data is less than an opening threshold and a second valid data is greater than the opening threshold, to obtain a first counting result; acquire the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold, to obtain a second counting result; and acquire the number of times the first valid data is greater than a closing threshold and the second valid data is less than the opening threshold, to obtain a second counting result; and acquire the number of times the first valid data is greater than a closing threshold and the second valid data is less than the closing threshold. A third counting result is obtained by counting the number of times the closing threshold is reached. A fourth counting result is obtained by counting the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold. The opening threshold is the minimum pressure that causes the support column safety valve to open, and the closing threshold is the maximum pressure that causes the support column safety valve to close. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points. The determining unit is used to determine the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0013] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes any one of the methods described.

[0014] According to another aspect of the present invention, a processor is also provided, the processor being configured to run a program, wherein the program performs any of the methods described.

[0015] According to one aspect of the present invention, a system for determining the operating status of a support column safety valve is also provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include methods for performing any one of the methods described.

[0016] In this embodiment of the invention, the method for determining the operating state of the support column safety valve includes: first, acquiring pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value; then, acquiring the number of times a first valid data is less than an opening threshold and a second valid data is greater than the opening threshold to obtain a first counting result; acquiring the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result; acquiring the number of times the first valid data is greater than a closing threshold and the second valid data is less than the closing threshold to obtain a third counting result; and acquiring the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points; finally, determining the operating state of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result. In this method, the first count result is the number of times the support column safety valve opens, the second count result is the number of times the support column safety valve overflows, and the opening and closing of the support column safety valve can be determined based on the first and second count results. The third count result is the number of times the support column safety valve closes, and the fourth count result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth count results. In other words, the operating status of the support column safety valve is determined based on the first, second, third, and fourth count results. This method solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 A flowchart illustrating a method for determining the operating state of a support column safety valve according to an embodiment of this application is shown;

[0019] Figure 2 This paper shows a schematic diagram of the basic timing sequence of the safety valve operation according to an embodiment of the present application.

[0020] Figure 3A flowchart illustrating a method for determining the operating status of a support column safety valve according to another specific embodiment of this application is shown;

[0021] Figure 4 A schematic diagram of a device for determining the operating status of a support column safety valve according to an embodiment of this application is shown. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be an intermediate element present. Furthermore, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element via a third element.

[0026] As mentioned in the background section, existing technologies cannot accurately monitor the operating status of support column safety valves. To address this issue, in a typical embodiment of this application, a method, apparatus, computer-readable storage medium, processor, and system for determining the operating status of support column safety valves are provided.

[0027] According to an embodiment of this application, a method for determining the operating status of a support column safety valve is provided.

[0028] Figure 1 This is a flowchart illustrating a method for determining the operating state of a support column safety valve according to an embodiment of this application. Figure 1 As shown, the method includes the following steps:

[0029] Step S101: Obtain pressure data of the safety valve of the support column at multiple time points, where the pressure data of the safety valve of the support column is less than the preset pressure value.

[0030] Step S102: Obtain the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold to obtain a first counting result; obtain the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result; obtain the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold to obtain a third counting result; obtain the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points.

[0031] Step S103: Determine the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0032] In the method for determining the operating status of the support column safety valve described above, firstly, pressure data of the support column safety valve at multiple time points are acquired, wherein the pressure data of the support column safety valve is less than a preset pressure value; then, the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold is acquired to obtain a first counting result; the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold is acquired to obtain a second counting result; the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold is acquired to obtain a third counting result; and the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold is acquired to obtain a fourth counting result. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points; finally, the operating status of the support column safety valve is determined based on the first counting result, the second counting result, the third counting result, and the fourth counting result. In this method, the first count result is the number of times the support column safety valve opens, the second count result is the number of times the support column safety valve overflows, and the opening and closing of the support column safety valve can be determined based on the first and second count results. The third count result is the number of times the support column safety valve closes, and the fourth count result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth count results. In other words, the operating status of the support column safety valve is determined based on the first, second, third, and fourth count results. This method solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art.

[0033] It should be noted that, since the pressure data of the safety valves of the aforementioned support columns were obtained through discrete sampling, a comparison is made between two adjacent collected pressure data points of the aforementioned support column safety valves, i.e., the first valid data V... i-1 And the second valid data V mentioned above i A comparison can reveal the operation of the safety valve on the support column, such as... Figure 2 As shown, the specific correspondence is as follows: V i >V i-1 And V H >V i-1 And V i >V H That is, the first valid data V mentioned above i-1 Less than the above-mentioned opening threshold V H And the aforementioned second valid data V iGreater than the above-mentioned activation threshold V H The case uses serialization symbol F 12 The mark, i.e., F 12 This indicates that the pressure of the safety valve on the aforementioned support column has reached the set opening threshold V. H Or it may oscillate within the pressure range and then cross the opening threshold V upwards. H That is, F 12 This indicates that the safety valve on the aforementioned support column has opened; V i <V i-1 And V H <V i-1 And V i <V H That is, the first valid data V mentioned above i-1 Greater than the above-mentioned activation threshold V H And the aforementioned second valid data V i Less than the above-mentioned opening threshold V H The case uses serialization symbol F 23 Marker, F 23 This indicates that the pressure of the aforementioned support column safety valve has exceeded the opening threshold V due to overflow. H That is, F 23 This indicates that the overflow action of the safety valve on the aforementioned support column has occurred; V i <V i-1 And V L <V i-1 And V i <V L That is, the first valid data V mentioned above i-1 Greater than the closing threshold V L And the aforementioned second valid data V i Less than the above-mentioned closing threshold V L The case uses serialization symbol F 34 The mark indicates that the pressure of the safety valve on the aforementioned support column has reached the set closing threshold V. L And crosses downwards through the closing threshold V L That is, F 34 This indicates that the safety valve on the aforementioned support column has closed; V i >V i-1 And V L >V i-1 And V i >V L That is, the first valid data V mentioned above i-1 Less than the closing threshold V L And the aforementioned second valid data V i Greater than the above-mentioned closing threshold V L Use serialization symbol F 45 Marker, F 45This indicates that the pressure in the aforementioned support column safety valve rises above the closing threshold V due to the cessation of leakage. L That is, F 45 This indicates that the safety valve on the aforementioned support column has stopped discharging liquid.

[0034] It should also be noted that the pressure sensor data of the support columns in more than 30 fully mechanized mining faces of a certain mine involves electro-hydraulic control systems from multiple manufacturers, enabling the acquisition and storage of pressure data from the support column safety valves with a response time of up to seconds. This application has been successfully applied to the monitoring of the operating status of the support column safety valves in all fully mechanized mining faces in multiple mining areas. The application itself provides a user interface for monitoring the safety valves of the fully mechanized mining face support columns, including historical data query and monitoring result verification functions. The system functions are continuously being improved, and for more than two years, the system data accuracy rate has been above 96%.

[0035] It should also be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0036] In one embodiment of this application, the operating state of the support column safety valve is determined based on the first counting result, the second counting result, the third counting result, and the fourth counting result. The operating state of the support column safety valve includes a normal operating state, an abnormal opening state, and an abnormal closing state. This includes: if all three conditions are met (first, second, third, and fourth), the operating state of the support column safety valve is determined to be normal operating, and a notification of normal operating state is sent. The first counting condition is that the first counting result is greater than zero; the second counting condition is that the second counting result is greater than zero; the third counting condition is that the third counting result is greater than zero; and the fourth counting condition is that the fourth counting result is greater than zero. If at least one of the first and second counting conditions is not met, the operating state of the support column safety valve is determined to be abnormal opening, and a notification of abnormal opening is sent. If at least one of the third and fourth counting conditions is not met, the operating state of the support column safety valve is determined to be abnormal closing, and a notification of abnormal closing is sent. In this embodiment, the first counting result isUpHigh is F 12 The number of times the safety valve on the support column opens (isUpHigh) is counted; the second count result (isDownHigh) is the number of times the safety valve on the support column opens. 23The number of times the safety valve on the support column overflowed, i.e., the second count result isDownHigh, represents the number of times the safety valve overflowed; the third count result isDownLow, represents the number of times F... 34 The number of times the safety valve of the support column closes is the third count result, isDownLow, and the fourth count result isUpLow is F. 45 The number of times, i.e., the fourth counting result isUpLow, is the number of times the support column safety valve stops leaking, under the condition that the first, second, third, and fourth counting conditions are all met, i.e., when the pressure of the support column safety valve reaches the set opening threshold V. H When the support column safety valve opens at least once and overflows at least once, it is confirmed that the support column safety valve can open and overflow normally. The valve pressure reaches the set closing threshold V. L When the support column safety valve closes at least once and stops leaking at least once, it is determined that the support column safety valve can normally close and stop leaking. When the support column safety valve can normally open, overflow, close, and stop leaking, it is determined that the support column safety valve is in normal operating condition. When at least one of the above first counting conditions and the above second counting conditions is not met, that is, when the pressure of the support column safety valve reaches the opening threshold V... H At that time, the safety valve of the support column did not open or overflow, meaning the pressure of the safety valve did not rise above the opening threshold V. H Or the pressure of the support column safety valve rises above the opening threshold V H If the safety valve on the support column fails to overflow normally after continuous rise, it is determined that the support column safety valve is in an abnormal opening state. This occurs when at least one of the above-mentioned third and fourth counting conditions is not met, i.e., when the pressure of the support column safety valve reaches the closing threshold V. L At that time, the safety valve of the support column did not close or stopped discharging, meaning the pressure of the safety valve did not fall below the opening threshold V. H Or the pressure of the support column safety valve is downward through the opening threshold V H The safety valve on the continuously descending support column failed to stop the leakage, confirming that the support column was in an abnormally closed state.

[0037] It should be noted that, as Figure 3As shown, when F12 is triggered, isUpHigh increments by 1, and the string ",F12" (with commas as separators) is appended to the end of the path string; when timing action F23 is triggered, isDownHigh increments by 1, and the string ",F23" is appended to the end of the path string; when timing action F34 is triggered, isDownLow increments by 1, and the string ",F34" is appended to the end of the path string; when timing action F45 is triggered, isUpLow increments by 1, and the string ",F45" is appended to the end of the path string. In this way, the four basic timing actions of the safety valve—opening, overflowing, closing, and stopping leakage—are recorded uniformly in terms of both quantity and sequence. That is, by setting five characteristic quantities—F12, F23, F34, F45, and path—the pressure data of the support column safety valve is quantitatively described.

[0038] In one embodiment of this application, after determining the operating status of the support column safety valve based on the first, second, third, and fourth counting results, the method further includes: if the pressure data of the support column safety valve at the current time point is less than a preset value, sending a notification to lower the target hydraulic support, wherein the target hydraulic support is the hydraulic support to which the support column safety valve belongs. In this embodiment, when the pressure data of the support column safety valve is less than the preset value, sending a notification to lower the target hydraulic support reminds the operator to lower the target hydraulic support and replenish emulsion into the support column safety valve of the target hydraulic support to ensure the normal operation of the target hydraulic support.

[0039] In one embodiment of this application, after sending a message notification to lower the target hydraulic support, the method includes: storing the first counting result; storing the operating status of the support column safety valve; and clearing the first counting result, the second counting result, the third counting result, and the fourth counting result to zero. In this embodiment, after sending the message notification to lower the target hydraulic support, as follows... Figure 3 As shown, the first count result isUpHigh is stored to analyze whether the parameter settings of the above-mentioned opening threshold and the above-mentioned closing threshold are correct. The operating status of the support column safety valve is stored to facilitate the subsequent analysis of the operating status of the support column safety valve by the staff. The first count result isUpHigh, the second count result isDownHigh, the third count result isDownLow, and the fourth count result isUpLow are all cleared to zero. The operating status of the hydraulic support column safety valve is detected during the process of the next hydraulic support top plate pressing down on the hydraulic support during the descent of the hydraulic support.

[0040] In one embodiment of this application, the operating state of the support column safety valve further includes a parameter abnormality state, which is when the opening threshold is less than the closing threshold. After sending a message notification of the target hydraulic support lowering, the method further includes: obtaining the first count results of two pressure-increasing processes, where each pressure-increasing process includes multiple time nodes between two adjacent time nodes corresponding to the lowering of the target hydraulic support; if the first count results of both pressure-increasing processes are zero, the operating state of the support column safety valve is determined to be the parameter abnormality state, and a message notification of abnormal setting parameters of the support column safety valve is pushed. In this embodiment, obtaining the first count results of the two pressure-increasing processes means obtaining the number of times the support column safety valve opens during the two pressure-increasing processes. If the number of times the support column safety valve opens during both pressure-increasing processes is zero, it can be determined that the opening threshold and closing threshold parameters of the support column safety valve are set incorrectly, i.e., the preset opening threshold is less than the preset closing threshold, and a message notification of abnormal setting parameters of the support column safety valve is pushed.

[0041] It should be noted that when the longwall face experiences severe pressure, the overlying strata form a "masonry beam" structure. This mechanical structure transmits static and dynamic loads to the hydraulic supports grouped on the longwall face. Under normal circumstances, this force is shared by the hydraulic supports in the area, and the load distributed to each support is continuous. Using this mine pressure theory, the opening actions of the safety valves of all support columns on the longwall face during two of the aforementioned pressure-inducing processes are obtained. The number and distribution of the hydraulic supports to which the safety valves of the support columns that have opened are statistically analyzed. This not only reflects the current pressure range of the longwall face through the number and distribution of actions, but also highlights the hydraulic supports whose safety valves should have opened but did not, based on the continuity of the pressure distribution. If the safety valves of these hydraulic supports do not open during two consecutive of the aforementioned pressure-inducing processes, it can be determined that the setting parameters of the safety valves of these hydraulic supports are abnormal.

[0042] In one embodiment of this application, after acquiring the effective pressure data of the support column safety valve at multiple time points, the method further includes: compressing the pressure data of the support column safety valve at each of the aforementioned time points. The compressed effective pressure data of the support column safety valve includes at least the waveform characteristic data of the pressure data of the support column safety valve. In this embodiment, it is necessary to compress the pressure data of the support column safety valve collected by the support column pressure sensor. Through compression processing, the pressure data of the support column safety valve is compressed by hundreds of times from the source, retaining only the basic waveform characteristics, core information, and data details of the pressure data of the support column safety valve, thereby improving the efficiency of processing and analyzing the pressure data of the support column safety valve and reducing the workload.

[0043] It should be noted that the hydraulic support systems of modern fully mechanized mining faces all integrate support column pressure sensors. The pressure data of the support column safety valves collected by the support column pressure sensors are centrally uploaded through the hydraulic support electro-hydraulic control system. One support column pressure sensor collects 3,600 pressure data points of the support column safety valves in one hour, and a shift of 8 hours generates 28,800 pressure data points of the support column safety valves. Therefore, the data processing of the support column pressure sensors is a massive time-series data processing operation.

[0044] It should also be noted that the pressure data compression of the support column safety valve is performed by using "change storage" of massive time-series data to preprocess the pressure data of the support column safety valve. Specifically, the pressure data of the support column safety valve is first processed by professional acquisition software to perform change storage. The so-called "change storage" means that the pressure data of the support column safety valve is only collected and stored when there is a change. A "rotating door compression" algorithm is used to perform preliminary compression processing on the pressure data of the support column safety valve. The compression ratio of the pressure data of the support column safety valve is 3600 / 42, which is almost a hundred times the compression.

[0045] This application also provides a device for determining the operating status of a support column safety valve. It should be noted that this device can be used to execute the method for determining the operating status of a support column safety valve provided in this application. The following describes the device for determining the operating status of a support column safety valve provided in this application.

[0046] Figure 4 This is a schematic diagram of a device for determining the operating status of a support column safety valve according to an embodiment of this application. Figure 4 As shown, the device includes:

[0047] The acquisition unit 10 acquires the pressure data of the safety valve of the support column at multiple time points, and the pressure data of the safety valve of the support column is less than the preset pressure value.

[0048] The counting unit 20 obtains a first counting result by acquiring the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold; obtains a second counting result by acquiring the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold; obtains a third counting result by acquiring the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold; and obtains a fourth counting result by acquiring the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold. The opening threshold is the minimum pressure required to open the safety valve of the support column, and the closing threshold is the maximum pressure required to close the safety valve of the support column. The first valid data and the second valid data are the pressure data of the safety valve of the support column at any two adjacent time points.

[0049] The determining unit 30 determines the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0050] In the aforementioned device for determining the operating status of the support column safety valve, the acquisition unit acquires pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value; the counting unit acquires the number of times a first valid data is less than an opening threshold and a second valid data is greater than the opening threshold to obtain a first counting result, acquires the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result, acquires the number of times the first valid data is greater than a closing threshold and the second valid data is less than the closing threshold to obtain a third counting result, and acquires the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result, wherein the opening threshold is the minimum pressure required to open the support column safety valve, the closing threshold is the maximum pressure required to close the support column safety valve, and the first and second valid data are the pressure data of the support column safety valve at any two adjacent time points; the determining unit determines the operating status of the support column safety valve based on the first, second, third, and fourth counting results. In this device, the first count result is the number of times the support column safety valve opens, the second count result is the number of times the support column safety valve overflows, and the opening and closing of the support column safety valve can be determined based on the first and second count results. The third count result is the number of times the support column safety valve closes, and the fourth count result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth count results. In other words, the operating status of the support column safety valve is determined based on the first, second, third, and fourth count results. This device solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art.

[0051] It should be noted that, since the pressure data of the safety valves of the aforementioned support columns were obtained through discrete sampling, a comparison is made between two adjacent collected pressure data points of the aforementioned support column safety valves, i.e., the first valid data V... i-1 And the second valid data V mentioned above i A comparison can reveal the operation of the safety valve on the support column, such as... Figure 2 As shown, the specific correspondence is as follows: V i >V i-1 And V H >V i-1 And V i >V H That is, the first valid data V mentioned above i-1 Less than the above-mentioned opening threshold V H And the aforementioned second valid data Vi Greater than the above-mentioned activation threshold V H The case uses serialization symbol F 12 The mark, i.e., F 12 This indicates that the pressure of the safety valve on the aforementioned support column has reached the set opening threshold V. H Or it may oscillate within the pressure range and then cross the opening threshold V upwards. H That is, F 12 This indicates that the safety valve on the aforementioned support column has opened; V i <V i-1 And V H <V i-1 And V i <V H That is, the first valid data V mentioned above i-1 Greater than the above-mentioned activation threshold V H And the aforementioned second valid data V i Less than the above-mentioned opening threshold V H The case uses serialization symbol F 23 Marker, F 23 This indicates that the pressure of the aforementioned support column safety valve has exceeded the opening threshold V due to overflow. H That is, F 23 This indicates that the overflow action of the safety valve on the aforementioned support column has occurred; V i <V i-1 And V L <V i-1 And V i <V L That is, the first valid data V mentioned above i-1 Greater than the closing threshold V L And the aforementioned second valid data V i Less than the above-mentioned closing threshold V L The case uses serialization symbol F 34 The mark indicates that the pressure of the safety valve on the aforementioned support column has reached the set closing threshold V. L And crosses downwards through the closing threshold V L That is, F 34 This indicates that the safety valve on the aforementioned support column has closed; V i >V i-1 And V L >V i-1 And V i >V L That is, the first valid data V mentioned above i-1 Less than the closing threshold V L And the aforementioned second valid data V i Greater than the above-mentioned closing threshold V L Use serialization symbol F 45 Marker, F 45This indicates that the pressure in the aforementioned support column safety valve rises above the closing threshold V due to the cessation of leakage. L That is, F 45 This indicates that the safety valve on the aforementioned support column has stopped discharging liquid.

[0052] It should also be noted that the pressure sensor data of the support columns in more than 30 fully mechanized mining faces of a certain mine involves electro-hydraulic control systems from multiple manufacturers, enabling the acquisition and storage of pressure data from the support column safety valves with a response time of up to seconds. This application has been successfully applied to the monitoring of the operating status of the support column safety valves in all fully mechanized mining faces in multiple mining areas. The application itself provides a user interface for monitoring the safety valves of the fully mechanized mining face support columns, including historical data query and monitoring result verification functions. The system functions are continuously being improved, and for more than two years, the system data accuracy rate has been above 96%.

[0053] In one embodiment of this application, the determining unit includes a first determining module, a second determining module, and a third determining module. The first determining module is used to determine that the operating state of the support column safety valve is a normal operating state when all of the first, second, third, and fourth counting conditions are met, and to push a message notification that the support column safety valve is operating normally. The first counting condition is that the first count result is greater than zero, the second counting condition is that the second count result is greater than zero, the third counting condition is that the third count result is greater than zero, and the fourth counting condition is that the fourth count result is greater than zero. The second determining module is used to determine that the operating state of the support column safety valve is an abnormal opening state when at least one of the first and second counting conditions is not met, and to push a message notification that the support column safety valve is abnormally opening. The third determining module is used to determine that the operating state of the support column safety valve is an abnormal closing state when at least one of the third and fourth counting conditions is not met, and to push a message notification that the support column safety valve is abnormally closing. In this embodiment, the first counting result isUpHigh is F. 12 The number of times the safety valve on the support column opens (isUpHigh) is counted; the second count result (isDownHigh) is the number of times the safety valve on the support column opens. 23 The number of times the safety valve on the support column overflowed, i.e., the second count result isDownHigh, represents the number of times the safety valve overflowed; the third count result isDownLow, represents the number of times F... 34 The number of times the safety valve of the support column closes is the third count result, isDownLow, and the fourth count result isUpLow is F. 45The number of times, i.e., the fourth counting result isUpLow, is the number of times the support column safety valve stops leaking, under the condition that the first, second, third, and fourth counting conditions are all met, i.e., when the pressure of the support column safety valve reaches the set opening threshold V. H When the support column safety valve opens at least once and overflows at least once, it is confirmed that the support column safety valve can open and overflow normally. The valve pressure reaches the set closing threshold V. L When the support column safety valve closes at least once and stops leaking at least once, it is determined that the support column safety valve can normally close and stop leaking. When the support column safety valve can normally open, overflow, close, and stop leaking, it is determined that the support column safety valve is in normal operating condition. When at least one of the above first counting conditions and the above second counting conditions is not met, that is, when the pressure of the support column safety valve reaches the opening threshold V... H At that time, the safety valve of the support column did not open or overflow, meaning the pressure of the safety valve did not rise above the opening threshold V. H Or the pressure of the support column safety valve rises above the opening threshold V H If the safety valve on the support column fails to overflow normally after continuous rise, it is determined that the support column safety valve is in an abnormal opening state. This occurs when at least one of the above-mentioned third and fourth counting conditions is not met, i.e., when the pressure of the support column safety valve reaches the closing threshold V. L At that time, the safety valve of the support column did not close or stopped discharging, meaning the pressure of the safety valve did not fall below the opening threshold V. H Or the pressure of the support column safety valve is downward through the opening threshold V H The safety valve on the continuously descending support column failed to stop the leakage, confirming that the support column was in an abnormally closed state.

[0054] It should be noted that, as Figure 3As shown, when F12 is triggered, isUpHigh increments by 1, and the string ",F12" (with commas as separators) is appended to the end of the path string; when timing action F23 is triggered, isDownHigh increments by 1, and the string ",F23" is appended to the end of the path string; when timing action F34 is triggered, isDownLow increments by 1, and the string ",F34" is appended to the end of the path string; when timing action F45 is triggered, isUpLow increments by 1, and the string ",F45" is appended to the end of the path string. In this way, the four basic timing actions of the safety valve—opening, overflowing, closing, and stopping leakage—are recorded uniformly in terms of both quantity and sequence. That is, by setting five characteristic quantities—F12, F23, F34, F45, and path—the pressure data of the support column safety valve is quantitatively described.

[0055] In one embodiment of this application, the device for determining the operating status of the support column safety valve further includes a sending unit. This sending unit is used to send a notification to lower the target hydraulic support when the pressure data of the support column safety valve at the current time point is less than a preset value. The target hydraulic support is the hydraulic support to which the support column safety valve belongs. In this embodiment, sending the notification to lower the target hydraulic support when the pressure data of the support column safety valve is less than the preset value reminds workers to lower the target hydraulic support and replenish emulsion into the support column safety valve of the target hydraulic support to ensure its normal operation.

[0056] In one embodiment of this application, the device for determining the operating status of the support column safety valve further includes a first storage unit, a second storage unit, and a clearing unit. The first storage unit stores the first counting result; the second storage unit stores the operating status of the support column safety valve; and the clearing unit clears the first counting result, the second counting result, the third counting result, and the fourth counting result to zero. In this embodiment, after sending the target hydraulic support lowering message notification, such as... Figure 3 As shown, the first count result isUpHigh is stored to analyze whether the parameter settings of the above-mentioned opening threshold and the above-mentioned closing threshold are correct. The operating status of the support column safety valve is stored to facilitate the subsequent analysis of the operating status of the support column safety valve by the staff. The first count result isUpHigh, the second count result isDownHigh, the third count result isDownLow, and the fourth count result isUpLow are all cleared to zero. The operating status of the hydraulic support column safety valve is detected during the process of the next hydraulic support top plate pressing down on the hydraulic support during the descent of the hydraulic support.

[0057] In one embodiment of this application, the device for determining the operating status of the support column safety valve further includes a first determining unit. The first determining unit includes an acquisition module and a determining module. The acquisition module acquires the first count results of two pressure-increasing processes, where each pressure-increasing process includes multiple time nodes between two adjacent time nodes corresponding to the lowering of the target hydraulic support. The determining module determines that the operating status of the support column safety valve is in an abnormal parameter state when the first count results of both pressure-increasing processes are zero, and pushes a message notification indicating that the support column safety valve setting parameters are abnormal. In this embodiment, acquiring the first count results of the two pressure-increasing processes means acquiring the number of times the support column safety valve's opening action occurs during the two pressure-increasing processes. If the number of times the support column safety valve's opening action occurs during both pressure-increasing processes is zero, it can be determined that the opening threshold and closing threshold parameters of the support column safety valve are set incorrectly, i.e., the preset opening threshold is less than the preset closing threshold, and a message notification indicating that the support column safety valve setting parameters are abnormal is pushed.

[0058] It should be noted that when the longwall face experiences severe pressure, the overlying strata form a "masonry beam" structure. This mechanical structure transmits static and dynamic loads to the hydraulic supports grouped on the longwall face. Under normal circumstances, this force is shared by the hydraulic supports in the area, and the load distributed to each support is continuous. Using this mine pressure theory, the opening actions of the safety valves of all support columns on the longwall face during two of the aforementioned pressure-inducing processes are obtained. The number and distribution of the hydraulic supports to which the safety valves of the support columns that have opened are statistically analyzed. This not only reflects the current pressure range of the longwall face through the number and distribution of actions, but also highlights the hydraulic supports whose safety valves should have opened but did not, based on the continuity of the pressure distribution. If the safety valves of these hydraulic supports do not open during two consecutive of the aforementioned pressure-inducing processes, it can be determined that the setting parameters of the safety valves of these hydraulic supports are abnormal.

[0059] In one embodiment of this application, the device for determining the operating status of the support column safety valve further includes a preprocessing unit. This preprocessing unit compresses the pressure data of the support column safety valve at each of the aforementioned time points. The compressed effective pressure data of the support column safety valve includes at least the waveform characteristic data of the pressure data. In this embodiment, the pressure data of the support column safety valve collected by the support column pressure sensor needs to be compressed. Through compression, the pressure data of the support column safety valve is compressed hundreds of times from its source, retaining only the basic waveform characteristics, core information, and data details. This improves the efficiency of processing and analyzing the pressure data of the support column safety valve and reduces workload.

[0060] It should be noted that the hydraulic support systems of modern fully mechanized mining faces all integrate support column pressure sensors. The pressure data of the support column safety valves collected by the support column pressure sensors are centrally uploaded through the hydraulic support electro-hydraulic control system. One support column pressure sensor collects 3,600 pressure data points of the support column safety valves in one hour, and a shift of 8 hours generates 28,800 pressure data points of the support column safety valves. Therefore, the data processing of the support column pressure sensors is a massive time-series data processing operation.

[0061] It should also be noted that the pressure data compression of the support column safety valve is performed by using "change storage" of massive time-series data to preprocess the pressure data of the support column safety valve. Specifically, the pressure data of the support column safety valve is first processed by professional acquisition software to perform change storage. The so-called "change storage" means that the pressure data of the support column safety valve is only collected and stored when there is a change. A "rotating door compression" algorithm is used to perform preliminary compression processing on the pressure data of the support column safety valve. The compression ratio of the pressure data of the support column safety valve is 3600 / 42, which is almost a hundred times the compression.

[0062] The device for determining the operating status of the safety valve of the support column includes a processor and a memory. The acquisition unit, counting unit and determination unit are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions.

[0063] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured, and adjusting kernel parameters can address the problem of inaccurate monitoring of the operating status of the support column safety valve in existing technologies.

[0064] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0065] This invention provides a storage medium storing a program that, when executed by a processor, implements the method for determining the operating state of the support column safety valve described above.

[0066] This invention provides a processor for running a program, wherein the program executes a method for determining the operating state of the support column safety valve.

[0067] This invention provides a system for determining the operating status of a support column safety valve, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include methods for performing any of the above-described methods, wherein the processor, when executing the program, implements at least the following steps:

[0068] Step S101: Obtain pressure data of the safety valve of the support column at multiple time points, where the pressure data of the safety valve of the support column is less than the preset pressure value.

[0069] Step S102: Obtain the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold to obtain a first counting result; obtain the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result; obtain the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold to obtain a third counting result; obtain the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points.

[0070] Step S103: Determine the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0071] The devices mentioned in this article can be servers, PCs, tablets, mobile phones, etc.

[0072] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps:

[0073] Step S101: Obtain pressure data of the safety valve of the support column at multiple time points, where the pressure data of the safety valve of the support column is less than the preset pressure value.

[0074] Step S102: Obtain the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold to obtain a first counting result; obtain the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result; obtain the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold to obtain a third counting result; obtain the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points.

[0075] Step S103: Determine the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result.

[0076] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0077] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units described above can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0078] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0079] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0080] If the aforementioned integrated units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0081] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0082] 1) In the method for determining the operating status of the support column safety valve of this application, firstly, pressure data of the support column safety valve at multiple time points are acquired, wherein the pressure data of the support column safety valve is less than a preset pressure value; then, the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold is acquired to obtain a first counting result; the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold is acquired to obtain a second counting result; the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold is acquired to obtain a third counting result; the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold is acquired to obtain a fourth counting result; the opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve; the first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points; finally, the operating status of the support column safety valve is determined based on the first counting result, the second counting result, the third counting result, and the fourth counting result. In this method, the first count result is the number of times the support column safety valve opens, the second count result is the number of times the support column safety valve overflows, and the opening and closing of the support column safety valve can be determined based on the first and second count results. The third count result is the number of times the support column safety valve closes, and the fourth count result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth count results. In other words, the operating status of the support column safety valve is determined based on the first, second, third, and fourth count results. This method solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art.

[0083] 2) In the device for determining the operating status of the support column safety valve of this application, the acquisition unit acquires pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value; the counting unit acquires the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold to obtain a first counting result, acquires the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold to obtain a second counting result, acquires the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold to obtain a third counting result, acquires the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold to obtain a fourth counting result, wherein the opening threshold is the minimum pressure that causes the support column safety valve to open, the closing threshold is the maximum pressure that causes the support column safety valve to close, and the first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points; the determining unit determines the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result. In this device, the first count result is the number of times the support column safety valve opens, the second count result is the number of times the support column safety valve overflows, and the opening and closing of the support column safety valve can be determined based on the first and second count results. The third count result is the number of times the support column safety valve closes, and the fourth count result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth count results. In other words, the operating status of the support column safety valve is determined based on the first, second, third, and fourth count results. This device solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art.

[0084] 3) The system for determining the operating status of the support column safety valve of this application includes: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include methods for performing any of the above-mentioned methods. In this system, the first counting result is the number of times the support column safety valve opens, the second counting result is the number of times the support column safety valve overflows, and the opening of the support column safety valve can be determined based on the first and second counting results. The third counting result is the number of times the support column safety valve closes, and the fourth counting result is the number of times the support column safety valve stops discharging, and the closing of the support column safety valve can be determined based on the third and fourth counting results. That is, the operating status of the support column safety valve is determined based on the first, second, third, and fourth counting results. This system solves the problem that the operating status of the support column safety valve cannot be accurately monitored in the prior art.

[0085] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for determining the operating status of a safety valve on a support column, characterized in that, The hydraulic support includes a support column safety valve, which includes: The pressure data of the support column safety valve at multiple time points is obtained, and the pressure data of the support column safety valve is less than a preset pressure value; The first count result is obtained by acquiring the number of times when the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold. The second count result is obtained by acquiring the number of times when the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold. The third count result is obtained by acquiring the number of times when the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold. The fourth count result is obtained by acquiring the number of times when the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold. The opening threshold is the minimum pressure that causes the support column safety valve to open, and the closing threshold is the maximum pressure that causes the support column safety valve to close. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points. The operating status of the support column safety valve is determined based on the first counting result, the second counting result, the third counting result, and the fourth counting result; The operating status of the support column safety valve is determined based on the first, second, third, and fourth counting results. The operating status includes normal operation, abnormal opening, and abnormal closing. Specifically: if all three counting conditions (first, second, third, and fourth) are met, the support column safety valve is determined to be in normal operation, and a notification of normal operation is sent. The first counting condition is that the first count result is greater than zero; the second counting condition is that the second count result is greater than zero; the third counting condition is that the third count result is greater than zero; and the fourth counting condition is that the fourth count result is greater than zero. If at least one of the first and second counting conditions is not met, the support column safety valve is determined to be in abnormal opening, and a notification of abnormal opening is sent. If at least one of the third and fourth counting conditions is not met, the support column safety valve is determined to be in abnormal closing, and a notification of abnormal closing is sent. The operating status of the support column safety valve also includes an abnormal parameter status, which is when the opening threshold is less than the closing threshold. After sending a message notification of the target hydraulic support lowering, the method further includes: obtaining the first count result of two pressure initiation processes, where the pressure initiation process includes multiple time nodes between the time nodes corresponding to two adjacent lowering of the target hydraulic support; if the first count result of both pressure initiation processes is zero, determining that the operating status of the support column safety valve is the abnormal parameter status, and pushing a message notification of abnormal setting parameters of the support column safety valve.

2. The method according to claim 1, characterized in that, After determining the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result, the method further includes: If the pressure data of the support column safety valve at the current time point is less than a preset value, a message notification to lower the target hydraulic support is sent, wherein the target hydraulic support is the hydraulic support to which the support column safety valve belongs.

3. The method according to claim 2, characterized in that, After sending a notification message to lower the target hydraulic support, the method includes: Store the first counting result; Store the operating status of the safety valve on the support column; The first counting result, the second counting result, the third counting result, and the fourth counting result are all cleared to zero.

4. The method according to claim 1, characterized in that, After acquiring the effective pressure data of the support column safety valve at multiple time points, the method further includes: The pressure data of the support column safety valve at each of the aforementioned time points is compressed, and the effective pressure data of the support column safety valve after compression includes at least the waveform characteristic data of the pressure data of the support column safety valve.

5. A device for determining the operating status of a safety valve on a support column, characterized in that, The hydraulic support includes a support column safety valve, which includes: The acquisition unit is used to acquire pressure data of the support column safety valve at multiple time points, wherein the pressure data of the support column safety valve is less than a preset pressure value. The counting unit is used to obtain a first counting result by acquiring the number of times the first valid data is less than the opening threshold and the second valid data is greater than the opening threshold; to acquire a second counting result by acquiring the number of times the first valid data is greater than the opening threshold and the second valid data is less than the opening threshold; to acquire a third counting result by acquiring the number of times the first valid data is greater than the closing threshold and the second valid data is less than the closing threshold; and to acquire a fourth counting result by acquiring the number of times the first valid data is less than the closing threshold and the second valid data is greater than the closing threshold. The opening threshold is the minimum pressure required to open the support column safety valve, and the closing threshold is the maximum pressure required to close the support column safety valve. The first valid data and the second valid data are the pressure data of the support column safety valve at any two adjacent time points. The determining unit is used to determine the operating status of the support column safety valve based on the first counting result, the second counting result, the third counting result, and the fourth counting result; The determining unit includes a first determining module, a second determining module, and a third determining module. The first determining module is used to determine that the operating state of the support column safety valve is in normal operation when all three of the following conditions are met: the first counting condition is that the first count result is greater than zero; the second counting condition is that the second count result is greater than zero; the third counting condition is that the third count result is greater than zero; and the fourth counting condition is that the fourth count result is greater than zero. The second determining module is used to determine that the operating state of the support column safety valve is in an abnormal opening state when at least one of the first and second counting conditions is not met, and to push a message notification indicating an abnormal opening of the support column safety valve. The third determining module is used to determine that the operating state of the support column safety valve is in an abnormal closing state when at least one of the third and fourth counting conditions is not met, and to push a message notification indicating an abnormal closing of the support column safety valve. The operating status of the support column safety valve also includes an abnormal parameter state, which is when the opening threshold is less than the closing threshold. The device for determining the operating status of the support column safety valve further includes a first determining unit, which includes an acquisition module and a determining module. The acquisition module is used to acquire the first count results of two pressure-increasing processes, and the pressure-increasing process includes multiple time nodes between the time nodes corresponding to two adjacent target hydraulic support descents. The determining module is used to determine that the operating status of the support column safety valve is the abnormal parameter state when the first count results of the two pressure-increasing processes are both zero, and to push a message notification that the setting parameters of the support column safety valve are abnormal.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program performs the method according to any one of claims 1 to 4.

7. A processor, characterized in that, The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 4 when it runs.

8. A system for determining the operating status of a safety valve on a support column, characterized in that, include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising methods for performing any one of claims 1 to 4.

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