Method, device and electronic equipment for adjusting working face advancement

Abstract

The present disclosure provides a method, device and electronic device for adjusting the advancement of a working surface. The method for adjusting the advancement of a working surface comprises: obtaining state data of a current cycle of a working surface, wherein the working surface comprises a hydraulic support; determining an advancement state curve of the working surface according to the state data; and controlling the hydraulic support to adjust the advancement of the working surface according to the advancement state curve. The present disclosure can determine the advancement of the working surface in the next cycle through the advancement state curve, thereby achieving continuous advancement of the working surface.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and in particular to a method, device and electronic equipment for adjusting the advancement of a working face. Background Art

[0002] The continuous and controllable advancement of the working face is an important technical guarantee for the continuous and efficient mining of the fully mechanized mining face. Although the fully mechanized mining face is composed of equipment such as coal mining machines, scraper conveyors and hydraulic supports, the overall advancement of the working face is mainly achieved through the mutual cooperation between the hydraulic supports and the scraper conveyors during the mining and advancement process of the working face. Since the hydraulic support group constitutes the overall support system of the working face, the state of the hydraulic support system will affect the advancement state of each hydraulic support, and the advancement state of a single hydraulic support will also have a certain impact on the system.

[0003] The prior art only focuses on the straightness state of the working surface and adjusts the advancement of the working surface according to the straightness state. This solution is difficult to achieve continuous advancement of the working surface. Summary of the invention

[0004] The embodiments of the present disclosure provide a method, device and electronic equipment for adjusting the advancement degree of a working surface.

[0005] The first aspect of the present disclosure provides a method for adjusting the advancement of a working surface, comprising: acquiring state data of a working surface in a current cycle, the working surface comprising a hydraulic support;

[0006] Determine the advancement state curve of the working face according to the state data;

[0007] According to the advancement degree state curve, the hydraulic support is controlled to adjust the advancement degree of the working surface.

[0008] In the embodiment of the present disclosure, the state data of the working surface in the current cycle is obtained, the working surface includes a hydraulic support, the advancement state curve of the working surface is determined according to the state data, and the hydraulic support is controlled to adjust the advancement of the working surface according to the advancement state curve. In the embodiment of the present disclosure, the advancement of the working surface in the next cycle can be determined by the advancement state curve, thereby achieving continuous advancement of the working surface.

[0009] In one embodiment of the present disclosure, determining the advancement state curve of the working surface according to the state data includes: determining a first scattered point corresponding to the relative positions of the first hydraulic support and the last hydraulic support in the working surface according to the state data; determining a second scattered point corresponding to the relative position of the i-th hydraulic support in the working surface according to the state data, wherein the value of i is a positive integer greater than or equal to 2 and less than N, and N is the number of hydraulic supports in the working surface; connecting the first scattered point and the second scattered point to obtain the advancement state curve.

[0010] In one embodiment of the present disclosure, controlling the hydraulic support to adjust the advancement degree of the working surface according to the advancement degree state curve includes: evaluating the advancement degree state of the working surface according to the advancement degree state curve; and controlling the hydraulic support to adjust the advancement degree of the working surface according to the evaluation result of the advancement degree state.

[0011] In one embodiment of the present disclosure, the advancement state of the working surface is evaluated according to the advancement state curve, including: connecting the first scattered points to obtain the advancement asymptote of the working surface; determining the most advanced hydraulic support of the working surface and its corresponding first simulated advancement line based on the advancement asymptote, and determining the most lagging hydraulic support of the working surface and its corresponding second simulated advancement line; obtaining the straightness deviation of the working surface according to the first simulated advancement line and the second simulated advancement line; obtaining the single advancement step amount of the hydraulic support; in response to the straightness deviation being less than or equal to the single advancement step amount, determining that the current straightness state of the working surface is within the controllable range of the deviation; in response to the straightness deviation being greater than the single advancement step amount, determining that the straightness state is outside the controllable range of the deviation.

[0012] In one embodiment of the present disclosure, the advancement degree state of the working surface is evaluated according to the advancement degree state curve, including: obtaining a first upward and downward sliding amount on a first side and a second upward and downward sliding amount on a second side of the working surface according to the advancement degree state curve, the first side and the second side being in a symmetrical relationship; determining the current upward and downward sliding state of the working surface according to the changing trends of the first upward and downward sliding amount and the second upward and downward sliding amount.

[0013] In one embodiment of the present disclosure, the advancement state of the working face is evaluated according to the advancement state curve, including: obtaining position information of the first scattered points corresponding to the first hydraulic support and the last hydraulic support in the working face according to the advancement state curve; in response to the difference in the position information of the first scattered points in the strike direction being within a preset threshold range, determining that the pseudo-inclined state of the working face in the current period is normal; in response to the difference in the position information of the first scattered points in the strike direction exceeding the threshold range, determining that the pseudo-inclined state of the working face in the current period is abnormal.

[0014] In one embodiment of the present disclosure, the controlling of the hydraulic support to adjust the advancement degree of the working surface according to the evaluation result of the advancement degree state includes: when the advancement degree state of the working surface does not require correction, determining the advancement control amount of the hydraulic support according to the maximum displacement stroke of the hydraulic support; or, when the straightness state of the working surface needs to be corrected, determining the advancement preset asymptote of the next cycle of the hydraulic support based on the advancement asymptote of the working surface and the single advancement step amount of the most lagging hydraulic support; determining the final advancement control amount of the hydraulic support according to the advancement preset asymptote; and controlling the hydraulic support to adjust the advancement degree of the working surface according to the advancement control amount of the hydraulic support.

[0015] In one embodiment of the present disclosure, the method further includes: when the upward and downward sliding state or pseudo-inclined state of the working surface needs to be corrected, adjusting the propulsion control amount of a plurality of consecutive hydraulic supports on the first side and / or the second side of the working surface.

[0016] In one embodiment of the present disclosure, controlling the hydraulic support to advance the working surface according to the advancement state curve also includes: obtaining the scatter points after the advancement state curve is adjusted; updating the advancement state curve according to the adjusted scatter points to obtain an updated advancement state curve; and controlling the hydraulic support to advance the working surface based on the updated advancement state curve.

[0017] The second aspect embodiment of the present disclosure proposes a device for adjusting the advancement degree of a working surface, comprising: an acquisition module for acquiring status data of a working surface in a current cycle, wherein the working surface includes a hydraulic support; a determination module for determining an advancement degree status curve of the working surface based on the status data; and a control module for controlling the hydraulic support to adjust the advancement degree of the working surface based on the advancement degree status curve.

[0018] The third aspect embodiment of the present disclosure proposes an electronic device, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the method for adjusting the advancement degree of the working face proposed in the first aspect embodiment of the present disclosure.

[0019] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic flow chart of a method for adjusting the advancement of a working surface provided in an embodiment of the present disclosure;

[0022] Figure 2 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0023] Figure 3 It is a schematic diagram of the advancement state curve;

[0024] Figure 4 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0025] Figure 5 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0026] Figure 6 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0027] Figure 7 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0028] Figure 8 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0029] Fig. 9 A schematic flow chart of another method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure;

[0030] Fig.10 A schematic diagram of the structure of a device for adjusting the advancement degree of a working surface provided in an embodiment of the present disclosure;

[0031] Fig.11The figure is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0033] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at" or "when" or "in response to determination".

[0035] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and cannot be understood as limiting the present disclosure.

[0036] The following describes the method, device and electronic equipment for adjusting the advancement degree of the working surface according to the embodiments of the present disclosure with reference to the accompanying drawings.

[0037] Figure 1 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 1 As shown, the method comprises the following steps:

[0038] S101, obtaining the status data of the working surface in the current cycle.

[0039] In the disclosed embodiment, the working face includes equipment such as coal mining machines, scraper conveyors and hydraulic supports. During the process of mining and advancing the working face, the overall advancement of the working face is mainly achieved through the mutual cooperation between the hydraulic supports and the scraper conveyors.

[0040] First, the hydraulic support lowers the column jack, takes the middle groove of the scraper conveyor as the anchor point, retracts the push jack to move the hydraulic support forward, and then the hydraulic support raises the column jack to support the top and bottom plates of the working surface to form an anchor point, and finally extends the push jack to push the hanging plate conveyor forward, thus achieving the overall advancement of the working surface.

[0041] On the working face, the coal mining machine cuts coal back and forth in a cycle, and each cycle is a coal cutting cycle.

[0042] The status data includes the overall straightness data of the working face formed by the scraper conveyor, the advancement data of the head and tail of the scraper conveyor, the distance data between the outermost sides of the head and tail of the scraper conveyor and the coal wall of the working face tunnel, and the stroke data of the push jacks of each hydraulic support connected to the scraper conveyor.

[0043] In some embodiments, real-time status data during the advancement of the working face can be obtained through preset sensing equipment, such as distance sensors, positioning devices, etc.

[0044] S102, determining the advancement state curve of the working face according to the state data.

[0045] In some embodiments, the relative position of each hydraulic support can be determined based on the status data, and the relative position of each hydraulic support can be mapped into a two-dimensional coordinate diagram as scattered points in the two-dimensional coordinate diagram. Each scattered point is then connected to obtain an advancement status curve, which can reflect the real-time advancement status of the working face during advancement.

[0046] S103, according to the advancement state curve, controlling the hydraulic support to adjust the advancement of the working surface.

[0047] Optionally, the advancement state of the working surface is evaluated according to the advancement state curve, and according to the evaluation result of the advancement state, the hydraulic support is controlled to adjust the advancement of the working surface.

[0048] When the evaluation result of the advancement degree state indicates that the advancement degree of the working face needs to be adjusted, the advancement control amount of the hydraulic support in the next cycle, that is, the advancement degree of the working face, can be determined according to the advancement degree state curve, so that the hydraulic support can be controlled to adjust the advancement degree of the working face according to the advancement control amount in the next cycle.

[0049] In the embodiment of the present disclosure, the state data of the working surface in the current cycle is obtained, the advancement state curve of the working surface is determined according to the state data, and the hydraulic support is controlled to adjust the advancement of the working surface according to the advancement state curve. In the embodiment of the present disclosure, the advancement of the working surface in the next cycle can be determined by the advancement state curve, thereby achieving continuous advancement of the working surface.

[0050] Figure 2 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 2 As shown, the method comprises the following steps:

[0051] S201, obtaining the status data of the working surface in the current cycle.

[0052] For a detailed description of step S201, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0053] S202, determining a first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working face according to the state data.

[0054] In the disclosed embodiment, the working surface includes two lanes, which are respectively located on the left and right sides of the working surface, and can be called the left lane and the right lane. The first hydraulic support is located on the left side of the working surface, and the last hydraulic support is located on the right side of the working surface.

[0055] In some embodiments, the first scattered point (X) corresponding to the relative position of the first hydraulic support 1 , Y 1 )=(X 1 , M+△ll 1 ), the first scattered point (X n , Y n )=(X n , M+△ll n ). Among them, X 1 is the distance between the outermost side of the scraper conveyor head and the coal wall of the left lane of the working face, X n is the distance between the outermost side of the tail of the scraper conveyor and the coal wall of the left lane of the working face, M is the reference advancement of the working face, optionally, the advancement of the scraper conveyor corresponding to the most delayed hydraulic support can be used as the reference advancement, △l is the difference between the advancement of the head of the scraper conveyor and the advancement of the tail of the scraper conveyor, l 1 It is the stroke of the push jack of the first hydraulic support, l n It is the stroke of the push jack of the final hydraulic support.

[0056] S203, determining a second scattered point corresponding to the relative position of the i-th hydraulic support in the working surface according to the state data, wherein the value of i is a positive integer greater than or equal to 2 and less than N, and N is the number of hydraulic supports in the working surface.

[0057] In some embodiments, the second scattered point coordinates corresponding to the relative position of the i-th hydraulic support in the working surface may be:

[0058]

[0059] Among them, S is the center distance width of the hydraulic support, △p is the straightness deviation of the middle groove of each scraper conveyor in the working surface straightness data formed by the scraper conveyor, l i is the stroke of the push jack of the i-th hydraulic support, and N is the number of hydraulic supports.

[0060] S204: Connect the first scattered point and the second scattered point to obtain a propulsion state curve.

[0061] like Figure 3 As shown, the scattered points corresponding to the relative positions of all hydraulic supports are connected to obtain the advancement state curve.

[0062] S205, controlling the hydraulic support to adjust the advancement of the working surface according to the advancement state curve.

[0063] For a detailed description of step S205, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0064] In the disclosed embodiment, the state data of the current cycle of the working surface is obtained, and the first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface is determined according to the state data. The second scattered point corresponding to the relative position of the i-th hydraulic support in the working surface is determined according to the state data, wherein the value of i is a positive integer greater than or equal to 2 and less than N, and N is the number of hydraulic supports in the working surface. The first scattered point and the second scattered point are connected to obtain an advancement state curve, and the hydraulic support is controlled to adjust the advancement of the working surface according to the advancement state curve. In the disclosed embodiment, by establishing the advancement state curve of the working surface, the advancement state of the working surface can be accurately reflected, so that the advancement of the working surface can be adjusted according to the advancement state of the working surface.

[0065] Based on the above embodiment, an evaluation method of the advancement state of the working face is explained. Figure 4 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 4 As shown, the method comprises the following steps:

[0066] S401, obtaining the status data of the working surface in the current cycle.

[0067] S402, determining the advancement state curve of the working face according to the state data.

[0068] For a detailed description of steps S401 to S402, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0069] S403, connecting the first scattered points to obtain an advancing asymptote of the working surface.

[0070] like Figure 3 As shown, the first scattered point corresponding to the first hydraulic support and the first scattered point corresponding to the last hydraulic support are connected to obtain a propulsion asymptote.

[0071] S404, based on the advancing asymptote, determining the most advanced hydraulic support of the working surface and its corresponding first simulated advancing line, and determining the most lagging hydraulic support of the working surface and its corresponding second simulated advancing line.

[0072] Based on the advancing asymptote, the most advanced hydraulic support of the working surface is judged, and the second scattered points corresponding to the most advanced hydraulic support are determined, and then the first simulated advancing line is determined according to the second scattered points corresponding to the most advanced hydraulic support; and based on the advancing asymptote, the most lagging hydraulic support of the working surface is judged, and the second scattered points corresponding to the most lagging hydraulic support are determined, and then the second simulated advancing line is determined according to the second scattered points corresponding to the most lagging hydraulic support. Wherein, both the first simulated advancing line and the second simulated advancing line are parallel to the advancing asymptote.

[0073] like Figure 3 As shown, since the last hydraulic support is currently in the most advanced state, that is, the last hydraulic support is the most advanced hydraulic support, the first simulated propulsion line and the propulsion asymptote are the same straight line.

[0074] S405: Obtain a straightness deviation of the working surface according to the first simulated advancing line and the second simulated advancing line.

[0075] like Figure 3 As shown, the difference between the first simulated propulsion line and the second simulated propulsion line in the strike direction (ie, the vertical direction) is taken as the straightness deviation of the working surface.

[0076] S406, obtaining a single advancement step distance of the hydraulic support.

[0077] S407, in response to the straightness deviation being less than or equal to the single advancement step, determining that the current straightness state of the working surface is within a controllable deviation range.

[0078] S408, in response to the straightness deviation being greater than the single advancement step, it is determined that the straightness state is outside the controllable deviation range.

[0079] Get the single advancement step of the hydraulic support and determine whether the single advancement step is greater than the straightness deviation. If not, the current straightness state of the working surface is within the controllable range of the deviation. At this time, the straightness adjustment of the working surface can be achieved by a single push of the hydraulic support. If so, it is determined that the straightness state is outside the controllable range of the deviation. At this time, the straightness state of the working surface needs to be corrected.

[0080] In the disclosed embodiment, the state data of the current cycle of the working surface is obtained, the advancement state curve of the working surface is determined according to the state data, the first scattered points are connected to obtain the advancement asymptote of the working surface, and the most advanced hydraulic support of the working surface and its corresponding first simulated advancement line are determined based on the advancement asymptote, and the most lagging hydraulic support of the working surface and its corresponding second simulated advancement line are determined. According to the first simulated advancement line and the second simulated advancement line, the straightness deviation of the working surface is obtained, and the single advancement step amount of the hydraulic support is obtained. In response to the straightness deviation being less than or equal to the single advancement step amount, it is determined that the current straightness state of the working surface is within the controllable range of the deviation, and in response to the straightness deviation being greater than the single advancement step amount, it is determined that the straightness state is outside the controllable range of the deviation. The disclosed embodiment can evaluate the advancement state of the working surface through the straightness state of the working surface, so as to correct the straightness state of the working surface when the straightness state of the working surface is outside the controllable range of the deviation.

[0081] Based on the above embodiment, another evaluation method of the advancement state of the working face is explained. Figure 5 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 5 As shown, the method comprises the following steps:

[0082] S501, obtaining the status data of the working surface in the current cycle.

[0083] S502, determining the advancement state curve of the working face according to the state data.

[0084] For a detailed description of steps S501 to S502, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0085] S503, according to the advancement state curve, obtain a first upward and downward sliding amount on a first side of the working face and a second upward and downward sliding amount on a second side, wherein the first side and the second side are in a symmetrical relationship.

[0086] In some embodiments, Figure 3As shown, the first side of the working face is the left side, and the second side of the working face is the right side. The first upward and downward sliding amount is the distance between the outermost side of the scraper head and the left tunnel coal wall, that is, the distance between the relative position of the first hydraulic support and the left tunnel coal wall. The second upward and downward sliding amount is the distance between the outermost side of the scraper tail and the right tunnel coal wall, that is, the distance between the relative position of the last hydraulic support and the right tunnel coal wall.

[0087] S504, determining the current upward and downward sliding state of the working face according to the changing trends of the first upward and downward sliding amount and the second upward and downward sliding amount.

[0088] When the first upward and downward sliding amount decreases and the second upward and downward sliding amount increases, it means that the working surface as a whole moves toward the left direction; when the first upward and downward sliding amount increases and the second upward and downward sliding amount decreases, it means that the working surface as a whole moves toward the right direction, which is the state of moving toward the right direction.

[0089] If the variation of the first upward and downward sliding amount and the variation of the second upward and downward sliding amount are both less than or equal to the variation threshold, the upward and downward sliding state of the working face is in a controllable state;

[0090] If the change in the first up-and-down sliding amount and / or the second up-and-down sliding amount is greater than the change threshold, the up-and-down sliding state of the working surface is in an uncontrollable state.

[0091] It should be noted that when the up and down sliding state of the working face is in an uncontrollable state, the up and down sliding state of the working face needs to be corrected.

[0092] In the disclosed embodiment, the state data of the current cycle of the working surface is obtained, and the advancement state curve of the working surface is determined according to the state data. According to the advancement state curve, the first upward and downward sliding amount of the first side and the second upward and downward sliding amount of the second side of the working surface are obtained, and the first side and the second side are in a symmetrical relationship. According to the change trend of the first upward and downward sliding amount and the second upward and downward sliding amount, the upward and downward sliding state currently occurring in the working surface is determined. The disclosed embodiment can evaluate the advancement state of the working surface through the upward and downward sliding state of the working surface, so as to correct the upward and downward sliding state of the working surface when the upward and downward sliding state of the working surface is in an uncontrollable state.

[0093] Based on the above embodiment, another evaluation method of the advancement state of the working face is explained. Figure 6 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 6 As shown, the method comprises the following steps:

[0094] S601, obtaining the status data of the working surface in the current cycle.

[0095] S602, determining the advancement state curve of the working face according to the state data.

[0096] For a detailed description of steps S601 to S602, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0097] S603, according to the advancement state curve, obtain the position information of the first scattered points corresponding to the first hydraulic support and the last hydraulic support in the working face.

[0098] S604: In response to the difference in the strike direction of the position information of the first scattered point being within a preset threshold range, it is determined that the pseudo-inclined state of the working surface in the current period is normal.

[0099] S605: In response to the difference in the strike direction of the position information of the first scattered point exceeding a threshold range, it is determined that the pseudo-inclined state of the working face in the current period is abnormal.

[0100] like Figure 3 As shown in the figure, the difference between the first scattered point corresponding to the first hydraulic support and the first scattered point corresponding to the last hydraulic support in the strike direction can reflect the pseudo-inclined state of the working face. When the difference is within the preset threshold range, it indicates that the advancement of the working face is unbalanced and no intervention adjustment is required; when the difference exceeds the preset threshold range, it indicates that the advancement of the working face is unbalanced and the pseudo-inclined state of the working face needs to be corrected.

[0101] In the disclosed embodiment, the state data of the current cycle of the working face is obtained, and the advancement state curve of the working face is determined according to the state data. According to the advancement state curve, the position information of the first scattered points corresponding to the first hydraulic support and the last hydraulic support in the working face is obtained. In response to the difference in the strike direction of the position information of the first scattered points being within a preset threshold range, it is determined that the pseudo-inclined state of the current cycle of the working face is normal. In response to the difference in the strike direction of the position information of the first scattered points exceeding the threshold range, it is determined that the pseudo-inclined state of the current cycle of the working face is abnormal. In the disclosed embodiment, the advancement state of the working face can be evaluated by the pseudo-inclined state of the working face, so as to correct the pseudo-inclined state of the working face when the pseudo-inclined state of the working face is abnormal.

[0102] Based on the above embodiment, a method for adjusting the advancement of the working surface is explained. Figure 7 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 7 As shown, the method comprises the following steps:

[0103] S701, when the advancement state of the working surface is that no correction is required, the advancement control amount of the hydraulic support is determined according to the maximum displacement stroke amount.

[0104] Among them, the advancement state of the working surface includes the straightness state, the upward and downward sliding state and the pseudo-inclined state of the working surface.

[0105] When the current straightness state of the working surface is within the controllable deviation range, the up and down sliding amount of the working surface is controllable, and the pseudo-inclined state of the working surface is normal, the advancement state of the working surface does not need to be corrected. In this case, the advancement control amount of the hydraulic support is determined according to the set advancement strategy, where the advancement control amount is less than or equal to the maximum pushing stroke of the hydraulic support.

[0106] It should be noted that the advancement strategy can be set according to actual needs and no limitation is made here.

[0107] S702, according to the propulsion control amount of the hydraulic support, control the hydraulic support to adjust the propulsion degree of the working surface.

[0108] In the next cycle, according to the propulsion control amount of the hydraulic support, the hydraulic support is controlled to propel the scraper conveyor forward in the strike direction to adjust the propulsion degree of the working surface.

[0109] In the embodiment of the present disclosure, when the advancement degree of the working surface does not need to be corrected, the advancement control amount of the hydraulic support is determined according to the maximum displacement stroke, and the hydraulic support is controlled according to the advancement control amount of the hydraulic support to adjust the advancement degree of the working surface. In the embodiment of the present disclosure, when the advancement degree of the working surface does not need to be corrected, the advancement control amount of the hydraulic support can be determined, and the advancement degree of the working surface can be automatically adjusted according to the advancement control amount of the hydraulic support.

[0110] Based on the above embodiment, the adjustment process of the straightness state of the working surface is explained. Figure 8 The following is a flow chart of a method for adjusting the advancement of a working surface provided by an embodiment of the present disclosure. Figure 8 As shown, the method comprises the following steps:

[0111] S801, when the straightness state of the working surface needs to be corrected, based on the advancing asymptote of the working surface and the single advancing step amount of the most lagging hydraulic support, determine the advancing preset asymptote of the hydraulic support in the next cycle.

[0112] When the straightness state of the working surface is outside the controllable range of deviation, the straightness state of the working surface needs to be corrected, such as Figure 3 As shown, according to the single advancement step of the most delayed hydraulic support, the relative position of the most delayed hydraulic support in the next cycle is determined, and a parallel line to the advancement asymptote is drawn at the relative position of the most delayed hydraulic support in the next cycle to obtain the preset advancement asymptote of the hydraulic support in the next cycle.

[0113] S802, determining the final propulsion control amount of the hydraulic support according to the preset propulsion asymptote.

[0114] The scattered points of the preset propulsion asymptote represent the relative position of each hydraulic support in the next cycle. Therefore, the relative position of each hydraulic support in the next cycle can be obtained according to the preset propulsion asymptote. Then, the difference between the current relative position and the relative position in the next cycle in the strike direction is used as the final propulsion control amount of the hydraulic support.

[0115] S803, according to the propulsion control amount of the hydraulic support, control the hydraulic support to adjust the propulsion degree of the working surface.

[0116] In the next cycle, according to the final propulsion control amount of the hydraulic support, the hydraulic support is controlled to propel the scraper conveyor forward in the strike direction to adjust the propulsion degree of the working surface.

[0117] In the embodiment of the present disclosure, when the straightness state of the working surface needs to be corrected, the preset asymptote of the advancement of the hydraulic support in the next cycle is determined based on the advancement asymptote of the working surface and the single advancement step of the most lagging hydraulic support, and the final advancement control amount of the hydraulic support is determined according to the preset asymptote, and the hydraulic support is controlled according to the advancement control amount of the hydraulic support to adjust the advancement of the working surface. The embodiment of the present disclosure realizes the correction of the straightness state of the working surface and ensures the normal advancement of the working surface.

[0118] Furthermore, in one embodiment of the present disclosure, when the upward and downward sliding state or the pseudo-inclined state of the working surface needs to be corrected, the propulsion control amounts of several consecutive hydraulic supports on the first side and / or the second side of the working surface are adjusted.

[0119] The following explanation is based on the first side being the left side and the second side being the right side:

[0120] When the upward and downward sliding state of the working face is not within the controllable range or the pseudo-inclined state is abnormal, correction is required. At this time, the following methods can be used for correction.

[0121] The propulsion control amount of several hydraulic supports on the left side of the working face can be increased, while the propulsion control amount of several hydraulic supports on the right side can be reduced, so as to increase the distance between the first hydraulic support and the coal wall of the left roadway and solve the problem of the working face moving to the left;

[0122] The propulsion control amount of several hydraulic supports on the right side of the working face can be reduced, while the propulsion control amount of several hydraulic supports on the right side can be increased to increase the distance between the last hydraulic support and the coal wall of the right roadway, thus solving the problem of the working face moving to the right;

[0123] The propulsion control amount of several hydraulic supports on the left side of the working face can be increased, while the propulsion control amount of several hydraulic supports on the right side can be reduced, so that the propulsion control amount of the hydraulic supports in the left area is greater than that in the right area, so as to solve the problem of upward and downward movement in the left area of ​​the working face;

[0124] The propulsion control amount of several hydraulic supports on the left side of the working face can be reduced, while the propulsion control amount of several hydraulic supports on the right side can be increased, so that the propulsion control amount of the hydraulic supports in the left area is smaller than that in the right area, so as to solve the problem of upward and downward sliding in the right area of ​​the working face.

[0125] The propulsion control amount of the first hydraulic support can be reduced, and the propulsion control amount of the last hydraulic support can be increased, so as to solve the problem of abnormal pseudo-inclination state of the working face.

[0126] The disclosed embodiment can correct the upward and downward sliding state and the pseudo-inclined state of the working surface to ensure the normal advancement of the working surface.

[0127] Fig. 9 A schematic diagram of a flow chart of a method for adjusting the advancement of a working surface provided in an embodiment of the present disclosure, such as Fig. 9 As shown, the method for adjusting the advancement of the working face also includes the following steps:

[0128] S901, obtaining the status data of the working surface in the current cycle.

[0129] S902, determining the advancement state curve of the working face according to the state data.

[0130] For a detailed description of steps S901 to S902, please refer to the relevant contents in the above embodiment, which will not be repeated here.

[0131] S903, obtaining the adjusted scattered points of the propulsion state curve.

[0132] In the disclosed embodiment, the advancement status curve can be displayed on the display interface of the host computer, and the operator can drag and adjust the advancement status curve to control the advancement degree of the working surface.

[0133] It should be noted that the adjustment range of the propulsion state curve is the range between the current propulsion state curve and the propulsion state curve of the next cycle. In addition, the adjustment of the propulsion state curve needs to comply with the actual mechanical limit requirements of the scraper conveyor trough. When adjusting one of the scattered point positions, the adjacent scattered point positions must also be adjusted according to the limited difference threshold between the hydraulic supports.

[0134] S904: Update the propulsion state curve according to the adjusted scatter points to obtain an updated propulsion state curve.

[0135] S905, based on the updated advancement state curve, control the hydraulic support to advance the working face.

[0136] After the operator drags and adjusts the advancement curve, the adjusted scattered points of the advancement state curve can be obtained, and the advancement state curve can be updated according to the adjusted scattered points. Then, based on the updated advancement state curve, the hydraulic support is controlled to advance the working surface.

[0137] The process of controlling the hydraulic support to advance the working surface can be found in the relevant contents of the above embodiments, which will not be repeated here.

[0138] In the disclosed embodiment, the state data of the working surface in the current cycle is obtained, the advancement state curve of the working surface is determined according to the state data, the scatter points after the advancement state curve is adjusted are obtained, the advancement state curve is updated according to the adjusted scatter points to obtain the updated advancement state curve, and the hydraulic support is controlled to advance the working surface based on the updated advancement state curve. The disclosed embodiment realizes the artificial adjustment of the advancement degree of the working surface and provides the flexibility of adjusting the advancement degree of the working surface.

[0139] In order to implement the above embodiment, the embodiment of the present disclosure also proposes a device for adjusting the advancement degree of the working surface. Fig.10 The structure diagram of a device for adjusting the advancement of a working surface provided by an embodiment of the present disclosure is shown in FIG. Fig.10 As shown, the working surface advancement adjustment device 1000 includes:

[0140] An acquisition module 1010 is used to acquire the status data of the working surface in the current cycle, where the working surface includes a hydraulic support;

[0141] A determination module 1020 is used to determine the advancement state curve of the working face according to the state data;

[0142] The control module 1030 is used to control the hydraulic support to adjust the advancement of the working surface according to the advancement state curve.

[0143] In the embodiment of the present disclosure, the state data of the working surface in the current cycle is obtained, the advancement state curve of the working surface is determined according to the state data, and the hydraulic support is controlled to adjust the advancement of the working surface according to the advancement state curve. In the embodiment of the present disclosure, the advancement of the working surface in the next cycle can be determined by the advancement state curve, thereby achieving continuous advancement of the working surface.

[0144] In some embodiments, the determination module 1020 is also used to: determine a first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface according to the state data; determine a second scattered point corresponding to the relative position of the i-th hydraulic support in the working surface according to the state data, wherein the value of i is a positive integer greater than or equal to 2 and less than N, and N is the number of hydraulic supports in the working surface; connect the first scattered point and the second scattered point to obtain a state curve of advancement.

[0145] In some embodiments, the control module 1030 is further used to: evaluate the advancement state of the working surface according to the advancement state curve; and control the hydraulic support to adjust the advancement of the working surface according to the evaluation result of the advancement state.

[0146] In some embodiments, the control module 1030 is also used to: connect the first scattered points to obtain the advancing asymptote of the working surface; determine the most advanced hydraulic support of the working surface and its corresponding first simulated advancing line based on the advancing asymptote, and determine the most lagging hydraulic support of the working surface and its corresponding second simulated advancing line based on the advancing asymptote; obtain the straightness deviation of the working surface according to the first simulated advancing line and the second simulated advancing line; obtain the single advancing step amount of the hydraulic support; in response to the straightness deviation amount being less than or equal to the single advancing step amount, determine that the current straightness state of the working surface is within the controllable range of the deviation; in response to the straightness deviation amount being greater than the single advancing step amount, determine that the straightness state is outside the controllable range of the deviation.

[0147] In some embodiments, the control module 1030 is also used to: obtain a first upward and downward sliding amount on the first side and a second upward and downward sliding amount on the second side of the working surface according to the advancement state curve, wherein the first side and the second side are in a symmetrical relationship; determine the current upward and downward sliding state of the working surface according to the changing trends of the first upward and downward sliding amount and the second upward and downward sliding amount.

[0148] In some embodiments, the control module 1030 is also used to: obtain the position information of the first scattered point corresponding to the first hydraulic support and the last hydraulic support in the working face according to the advancement state curve; in response to the difference in the position information of the first scattered point in the strike direction being within a preset threshold range, determine that the pseudo-inclination state of the working face in the current period is normal; in response to the difference in the position information of the first scattered point in the strike direction exceeding the threshold range, determine that the pseudo-inclination state of the working face in the current period is abnormal.

[0149] In some embodiments, the control module 1030 is also used to: when the advancement state of the working surface does not require correction, determine the advancement control amount of the hydraulic support according to the maximum pushing stroke of the hydraulic support; or, when the straightness state of the working surface needs to be corrected, determine the advancement preset asymptote of the next cycle of the hydraulic support based on the advancement asymptote of the working surface and the single advancement step of the most lagging hydraulic support; determine the final advancement control amount of the hydraulic support according to the advancement preset asymptote; and control the hydraulic support to adjust the advancement of the working surface according to the advancement control amount of the hydraulic support.

[0150] In some embodiments, the working surface advancement adjustment device 1000 also includes: an adjustment module 1040, which is used to adjust the advancement control amount of a plurality of consecutive hydraulic supports on the first side and / or second side of the working surface when the upward, downward sliding or pseudo-inclined state of the working surface needs to be corrected.

[0151] In some embodiments, the control module 1030 is further used to: obtain the adjusted scattered points of the propulsion state curve; update the propulsion state curve according to the adjusted scattered points to obtain an updated propulsion state curve; and control the hydraulic support to propel the working surface based on the updated propulsion state curve.

[0152] The working surface advancement adjustment device provided in the embodiment of the present disclosure can be used to implement the technical solution of the working surface advancement adjustment method of the first aspect of the above-mentioned embodiment. Its implementation principle and technical effect are similar and will not be repeated here.

[0153] In order to implement the above embodiment, Fig.11 As shown, the present disclosure also proposes an electronic device 1100, including a memory 1110, a processor 1120, and a computer program stored in the memory 1110 and executable on the processor 1120, and the processor 1120 executes the program to implement the method for adjusting the advancement degree of the working face proposed in the aforementioned embodiment of the present disclosure.

[0154] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0155] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0156] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A method for adjusting the advancement of a working face, It is characterized in that include: Acquiring state data of a working surface in a current cycle, wherein the working surface includes a hydraulic support; Determine the first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface according to the state data, and determine the first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface according to the state data. i The second scattered points corresponding to the relative positions of the hydraulic supports are determined, and the advancement state curve of the working surface is determined according to the first scattered points and the second scattered points, wherein: i The value of is a positive integer greater than or equal to 2 and less than N, where N is the number of hydraulic supports in the working surface; According to the advancement state curve, the advancement state of the working surface is evaluated, and according to the evaluation result of the advancement state, the hydraulic support is controlled to adjust the advancement degree of the working surface; The advancement state of the working face is evaluated according to the advancement state curve, including: According to the advancement state curve, obtaining a first upward and downward sliding amount on a first side of the working surface and a second upward and downward sliding amount on a second side of the working surface, wherein the first side and the second side are in a symmetrical relationship; According to the change trends of the first upward and downward sliding amount and the second upward and downward sliding amount, the current upward and downward sliding state of the working surface is determined.

2. The method according to claim 1, It is characterized in that Determining the advancement state curve of the working surface according to the first scattered points and the second scattered points includes: The first scattered points and the second scattered points are connected to obtain the advancement state curve.

3. The method according to claim 1, It is characterized in that The step of evaluating the advancement state of the working face according to the advancement state curve further includes: Connecting the first scattered points to obtain an advancing asymptote of the working surface; Based on the advancing asymptote, determining the most advanced hydraulic support of the working surface and its corresponding first simulated advancing line, and determining the most lagging hydraulic support of the working surface and its corresponding second simulated advancing line; Acquiring a straightness deviation of the working surface according to the first simulated advancement line and the second simulated advancement line; Obtaining a single advancement step of the hydraulic support; In response to the straightness deviation being less than or equal to the single advancement step, determining that the current straightness state of the working surface is within a controllable deviation range; In response to the straightness deviation being greater than the single advancement step, it is determined that the straightness state is outside the controllable deviation range.

4. The method according to claim 1, It is characterized in that The step of evaluating the advancement state of the working face according to the advancement state curve includes: According to the advancement state curve, position information of the first scattered points corresponding to the first hydraulic support and the last hydraulic support in the working face is obtained; In response to the difference in the strike direction of the position information of the first scattered points being within a preset threshold range, it is determined that the pseudo-inclined state of the working surface in the current period is normal; In response to the difference in the strike direction of the position information of the first scattered points exceeding the threshold range, it is determined that the pseudo-inclined state of the working face in the current period is abnormal.

5. The method according to any one of claims 1 to 4, It is characterized in that According to the evaluation result of the advancement degree state, controlling the hydraulic support to adjust the advancement degree of the working surface includes: When the advancement state of the working surface does not require correction, the advancement control amount of the hydraulic support is determined according to the maximum advancement stroke of the hydraulic support; or In the case where the straightness state of the working surface needs to be corrected, based on the advancing asymptote of the working surface and the single advancing step amount of the most lagging hydraulic support, a preset advancing asymptote of the hydraulic support in the next cycle is determined; Determining the final propulsion control amount of the hydraulic support according to the preset propulsion asymptote; According to the propulsion control amount of the hydraulic support, the hydraulic support is controlled to adjust the propulsion degree of the working surface.

6. The method according to any one of claims 1 to 4, It is characterized in that Also includes: When the upward and downward sliding state or the pseudo-inclined state of the working surface needs to be corrected, the propulsion control amounts of a plurality of consecutive hydraulic supports on the first side and / or the second side of the working surface are adjusted.

7. The method according to claim 1, It is characterized in that The controlling the hydraulic support to advance the working surface according to the advancement state curve further includes: Obtaining the adjusted scattered points of the advancement state curve; updating the advancement state curve according to the adjusted scatter points to obtain an updated advancement state curve; Based on the updated advancement state curve, the hydraulic support is controlled to advance the working surface.

8. A device for adjusting the advancement of a working surface, It is characterized in that include: An acquisition module, used to acquire status data of a working surface in a current cycle, wherein the working surface includes a hydraulic support; a determination module, configured to determine a first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface according to the state data, and to determine a first scattered point corresponding to the relative position of the first hydraulic support and the last hydraulic support in the working surface according to the state data; i The second scattered points corresponding to the relative positions of the hydraulic supports are determined, and the advancement state curve of the working surface is determined according to the first scattered points and the second scattered points, wherein: i The value of is a positive integer greater than or equal to 2 and less than N, where N is the number of hydraulic supports in the working surface; A control module, configured to evaluate the advancement state of the working surface according to the advancement state curve, and control the hydraulic support to adjust the advancement degree of the working surface according to the evaluation result of the advancement state; The advancement state of the working face is evaluated according to the advancement state curve, including: According to the advancement state curve, obtaining a first upward and downward sliding amount on a first side of the working surface and a second upward and downward sliding amount on a second side of the working surface, wherein the first side and the second side are in a symmetrical relationship; According to the change trends of the first upward and downward sliding amount and the second upward and downward sliding amount, the current upward and downward sliding state of the working surface is determined.

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