Hydraulic support guard mechanism guard state monitoring method, device and equipment and storage medium

Abstract

The present application belongs to the technical field of mining support control, and aims to solve the problem that the small rod diameter and small cylinder diameter of the support jack and the poor working environment are not conducive to support state monitoring. A support state monitoring method, device, equipment and storage medium for a hydraulic support support mechanism are provided, the support state monitoring method comprising: acquiring support parameters of a hydraulic support support mechanism, and calculating support characteristic parameters of the hydraulic support support mechanism based on the support parameters; determining the membership function and weight coefficient of the support characteristic parameters of each type based on each type of support characteristic parameters; determining the support state monitoring result of the hydraulic support support mechanism based on the membership function and weight coefficient of each type of support characteristic parameters. The present application can accurately identify the support state and ensure safe and efficient production of the fully mechanized working face.

Description

Technical Field

[0001] This invention relates to the field of mining support control technology, and more specifically, to a method, device, equipment, and storage medium for monitoring the support status of a hydraulic support support mechanism. Background Technology

[0002] As a key component in contact between the hydraulic support and the coal face, the side guard plate's main function is to provide timely support to the coal face, preventing large-scale spalling that could impact working face production and cause safety issues. Simultaneously, the side guard plate can be retracted promptly during coal cutting by the mining machine to avoid cutting interference.

[0003] Currently, the following three methods are used to monitor the condition of the sidewalls in underground fully mechanized mining operations: visual monitoring using explosion-proof cameras, which is affected by underground coal dust and light, requires image processing, and is complex and has poor real-time performance; measurement using contact sensors, which is affected by the small cylinder diameter and rod diameter of the sidewall jacks, making the layout complex, installation and disassembly inconvenient, and signal transmission difficult; and monitoring whether the sidewalls have retracted using laser, radar, and other methods, which is costly and cannot obtain the supporting force of the sidewall mechanism on the coal wall. Summary of the Invention

[0004] The purpose of this invention is to provide a method, device, equipment and storage medium for monitoring the side protection status of a hydraulic support side protection mechanism, which aims to monitor whether the side protection plate is retracted and identify whether the side protection status is good, so as to ensure safe and efficient production of the fully mechanized mining face.

[0005] This invention discloses a method for monitoring the support status of a hydraulic support support mechanism, comprising:

[0006] Obtain the side protection parameters of the hydraulic support side protection mechanism, and calculate the side protection characteristic parameters of the hydraulic support side protection mechanism based on the side protection parameters;

[0007] Based on the characteristic parameters of each type of protection, determine the membership function and weight coefficient of the characteristic parameters of the corresponding type of protection;

[0008] Based on the membership function and weight coefficient of the characteristic parameters of each type of support, the monitoring results of the support status of the hydraulic support support mechanism are determined.

[0009] This includes obtaining the support parameters of the hydraulic support support mechanism and calculating the support characteristic parameters of the hydraulic support support mechanism based on the support parameters, including:

[0010] A first sensor is installed at the bottom of the cylinder of the first-stage support jack of the hydraulic support support mechanism, and a second sensor is installed at the bottom of the cylinder of the second-stage support jack of the hydraulic support support mechanism.

[0011] The displacement of the piston rod of the first-stage support jack and the support pressure of the first-stage support jack are collected through the first sensor.

[0012] The displacement of the piston rod of the secondary support jack and the support pressure of the secondary support jack are collected through the second sensor.

[0013] By collecting the piston rod displacement of the first-stage support jack, the piston rod displacement of the second-stage support jack, the support pressure of the first-stage support jack, and the support pressure of the second-stage support jack, the attitude calculation and structural mechanics analysis of the hydraulic support support mechanism are performed to obtain the support characteristic parameters.

[0014] Among them, the characteristic parameters of the side support include the opening angle of the primary side support plate, the angle between the secondary side support plate and the primary side support plate, the side support pressure of the primary side support jack, the side support pressure of the secondary side support jack, the point of application of the resultant force of the side support mechanism, and the pitch angle of the top beam.

[0015] The process includes calculating the opening angle of the primary side guard plate and the angle between the secondary side guard plate and the primary side guard plate in the side guard plate characteristic parameters. It also includes determining the posture of the secondary side guard plate based on the opening angle of the primary side guard plate and the angle between the secondary side guard plate and the primary side guard plate. The posture of the secondary side guard plate includes an extended state and a retracted state.

[0016] The posture of the secondary side guard plate is determined by the opening angle of the primary side guard plate and the angle between the secondary side guard plate and the primary side guard plate, including:

[0017] When the sum of the opening angle of the primary side guard plate and the angle between the secondary side guard plate and the primary side guard plate is greater than the preset first angle threshold, the posture of the secondary side guard plate of the hydraulic support side guard mechanism is determined to be in the extended state.

[0018] When the sum of the opening angle of the primary side guard plate and the angle between the secondary side guard plate and the primary side guard plate is less than the preset first angle threshold, the posture of the secondary side guard plate of the hydraulic support side guard mechanism is determined to be the retracted state.

[0019] Among them, the opening angle of the first-level protective board i The angle between the first and second level side guards and the first level side guard. i The formula for 2 is expressed as:

[0020]

[0021]

[0022] in, L BD It is the distance between the hinge point B of the piston rod of the wide rod, narrow rod, and first-level side protection jack and the hinge point D of the telescopic beam and first-level side protection plate;

[0023] L CD It is the distance between the hinge point C of the wide bar and the first-level side guard plate and the hinge point D of the telescopic beam and the first-level side guard plate;

[0024] L BC It is the distance between the hinge point B of the piston rod of the wide rod, narrow rod, and first-stage side guard jack and the hinge point C of the wide rod and first-stage side guard plate;

[0025] L AD It is the distance between hinge point A of the narrow pole and telescopic beam and hinge point D of the telescopic beam and primary guardrail plate;

[0026] L BA The distance between hinge point A of the narrow rod and telescopic beam and hinge point B of the piston rod of the wide rod, narrow rod, and first-stage side protection jack;

[0027] β It refers to the assembly angle between the telescopic beam and the top beam;

[0028] ∠D 2 DC It is the angle between the line connecting the hinge point D of the telescopic beam and the first-level guardrail plate on the projection point D2 on the first-level guardrail plate and the hinge point D of the telescopic beam and the first-level guardrail plate, and the line connecting the hinge point D of the telescopic beam and the first-level guardrail plate and the hinge point C of the wide bar and the first-level guardrail plate.

[0029] ∠D 1 Yes It is the angle between the line connecting the hinge point D of the telescopic beam and the first-level guard plate on the projection point D1 on the telescopic beam and the hinge point D of the telescopic beam and the first-level guard plate, and the line connecting the hinge point D of the telescopic beam and the first-level guard plate and the hinge point A of the narrow bar and the telescopic beam.

[0030] L EH It is the distance between the hinge point E of the secondary side protection jack cylinder bottom and the primary side protection plate and the hinge point H of the primary side protection plate and the secondary side protection plate.

[0031] L IH It is the distance between the hinge point I of the piston rod of the secondary side protection jack and the secondary side protection plate and the hinge point H of the primary side protection plate and the secondary side protection plate.

[0032] S 2 It is the length of a level 2 side-support jack;

[0033] ∠H 1 HEIt is the angle between the line connecting the hinge point H of the first-level side guard plate and the second-level side guard plate on the projection point H1 on the first-level side guard plate and the hinge point H of the first-level side guard plate and the line connecting the hinge point H of the first-level side guard plate and the hinge point E of the second-level side guard jack cylinder bottom and the first-level side guard plate.

[0034] ∠H 2 HI It is the angle between the line connecting the hinge point H of the primary side plate and the secondary side plate on the projection point H2 on the secondary side plate and the hinge point H of the primary side plate and the secondary side plate, and the line connecting the hinge point H of the primary side plate and the hinge point I of the secondary side plate jack piston rod and the secondary side plate.

[0035] In the step of determining the membership function of the corresponding type of protective feature parameters based on each type of protective feature parameter, the membership function formula for each type of protective feature parameter is expressed as follows:

[0036] The opening angle of the primary side guard i Membership function of 1 LSD 1:

[0037]

[0038] in, i 1临界 for i The critical value of 1 i 1max for i The maximum value of 1, and i 1 i 1临界 At that time, there is a load-bearing position on the secondary side plate, which causes the secondary side plate jack to reach its maximum load first;

[0039] i 1> i 1临界 At that time, the first-level support jack reached its maximum load first;

[0040] The angle between the secondary side panel and the primary side panel i Membership function of 2 LSD 2:

[0041]

[0042] in, i 2临界 for i The critical value of 2, i 2max for i The maximum value of 2; for iThe minimum value of 2;

[0043] Membership function of the support pressure of the primary support jack LSD 3:

[0044]

[0045] Membership function of the support pressure of the secondary support jack LSD 4:

[0046]

[0047] in P 0 represents the rated pressure of the pumping station. P max Set the opening pressure for the safety valves of the primary and secondary support jacks; P 1 represents the support pressure of the first-level support jack. P 2 represents the support pressure of the secondary support jack;

[0048] Membership function of the point of application of the resultant force of the support mechanism LSD 5:

[0049]

[0050] in, L 1max It is the point of action of the combined force of the support structure. L The maximum value of 1;

[0051] Top beam pitch angle membership function LSD 6:

[0052]

[0053] in, The pitch angle of the top beam. , These are the maximum and minimum values ​​of the pitch angle of the top beam, respectively.

[0054] When the coal face is not fractured and the support structure provides effective support for the coal face, the following formula should be satisfied:

[0055]

[0056] When the piston rod displacement of the secondary side support jack is 0, the angle between the secondary side support plate and the primary side support plate is... i 2. Take the minimum value; the angle between the secondary side guard plate and the primary side guard plate. i The maximum value of 2 is 180°.

[0057] This invention discloses a monitoring device for the support status of a hydraulic support support mechanism, comprising:

[0058] The data processing module is used to acquire the side protection parameters of the hydraulic support side protection mechanism and calculate the side protection characteristic parameters of the hydraulic support side protection mechanism based on the side protection parameters.

[0059] The data calculation module is used to determine the membership function and weight coefficient of the corresponding type of protection feature parameters based on the protection feature parameters of each type;

[0060] The status monitoring module is used to determine the status monitoring results of the hydraulic support support mechanism based on the membership function and weight coefficient of the support feature parameters of each type.

[0061] The present invention discloses a computer device, including an input / output unit, a memory, and a processor. The memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor performs the steps in the method described in the foregoing embodiments.

[0062] The present invention discloses a storage medium storing computer-readable instructions, which, when executed by one or more processors, cause the one or more processors to perform the steps in the method described in the foregoing embodiments.

[0063] The advantages of this invention, which differ from existing technologies, are:

[0064] The present invention discloses a method for monitoring the support status of a hydraulic support support mechanism. This method monitors the displacement and pressure of the piston rod of the support jack to obtain the support parameters and stress conditions of the support mechanism. Through attitude calculation and structural mechanics analysis of the support mechanism, six characteristic parameters are selected to monitor the support status. Addressing the issues of small rod diameter, small cylinder diameter, and harsh working environment of the support jack, this invention employs built-in wireless pressure and displacement sensors to acquire displacement and pressure data of the piston rod of the support jack. Simultaneously, the acquired data is used to calculate the attitude of the support plate, and the support status is identified based on the characteristic parameters, ensuring safe and efficient production at the fully mechanized mining face. Attached Figure Description

[0065] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0066] Figure 1 This is a flowchart illustrating a method for monitoring the support status of a hydraulic support support mechanism according to the present invention.

[0067] Figure 2 This is a schematic diagram of the hydraulic support support mechanism in the support condition monitoring method of the present invention.

[0068] Figure 3This is a schematic diagram of the attitude calculation of the hydraulic support support mechanism in the support status monitoring method of the present invention.

[0069] Figure 4 This is a schematic diagram of the mechanical structure analysis of the hydraulic support support mechanism in the support support status monitoring method of the present invention.

[0070] Figure 5 This is a structural schematic diagram of a support status monitoring device for a hydraulic support support mechanism according to the present invention.

[0071] In the diagram, 1 is the primary side support plate, 2 is the secondary side support plate, 3 is the primary side support jack, 4 is the secondary side support jack, 5 is the wide rod, 6 is the narrow rod, 7 is the telescopic beam, 510 is the data processing module, 520 is the data calculation module, and 530 is the status monitoring module. Detailed Implementation

[0072] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0073] Please refer to Figure 1 This invention discloses a method for monitoring the support status of a hydraulic support support mechanism, comprising:

[0074] S 110: Obtain the side protection parameters of the hydraulic support side protection mechanism, and calculate the side protection characteristic parameters of the hydraulic support side protection mechanism based on the side protection parameters.

[0075] The structure of the hydraulic support side protection mechanism involved in this invention is as follows: Figure 2 As shown, the hydraulic support support mechanism includes a primary support plate 1, a secondary support plate 2, a primary support jack 3, a secondary support jack 4, a wide rod 5, a narrow rod 6, and a telescopic beam 7. A first sensor for measuring the piston rod displacement and support pressure of the primary support jack 3 is installed at the bottom of its cylinder; a second sensor for measuring the piston rod displacement and support pressure of the secondary support jack 4 is installed at the bottom of its cylinder. Both the first and second sensors are built-in wireless pressure and displacement sensors, connected to the bottom of the cylinders of the primary and secondary support jacks 3 and 4 via threads. The first sensor collects the piston rod displacement x1 and support pressure of the primary support jack generated during the support operation. P 1; The displacement x2 of the piston rod of the secondary support jack and the support pressure of the secondary support jack are collected by the second sensor during the support operation. P 2.

[0076] In the hydraulic support protection mechanism of this invention embodiment, the wide rod 5, the narrow rod 6, the first-level support jack 3, and the first-level support plate 1 form a small four-bar linkage mechanism of the hydraulic support protection mechanism, which can optimize the stress on the structure, increase the load-bearing capacity, and make the movement more stable and reliable.

[0077] The data collected included the piston rod displacement x1 of the primary support jack, the piston rod displacement x2 of the secondary support jack, and the support pressure of the primary support jack. P Level 1 and Level 2 support jacks support pressure P 2. The attitude calculation and structural mechanics analysis of the hydraulic support side protection mechanism were performed to obtain the characteristic parameters of the side protection.

[0078] Among them, the characteristic parameters of the side protection include the opening angle of the primary side protection plate 1. i 1. The angle between the secondary side guard plate 2 and the primary side guard plate 1 i 2. Level 1 support jack support pressure P 1. Level 2 support jack support pressure P 2. Point of application of the combined force of the support structure L 1 and the pitch angle of the top beam .

[0079] Figure 3 This is a schematic diagram of the attitude calculation of the hydraulic support side protection mechanism involved in this invention. In the figure, AB is the narrow rod 6, BC is the wide rod 5, OB is the piston rod of the primary side protection jack 3, EI is the piston rod of the secondary side protection jack 4, point A is the hinge point of the narrow rod 6 and the telescopic beam 7, point B is the hinge point of the narrow rod 6, the wide rod 5 and the piston rod of the primary side protection jack 3, point C is the hinge point of the wide rod 5 and the primary side protection plate 1, and C1 is the projection of the hinge point C of the wide rod 5 and the primary side protection plate 1 onto the primary side protection plate 1. D is the hinge point between the telescopic beam 7 and the primary side guard plate 1; H is the hinge point between the primary side guard plate 1 and the secondary side guard plate 2; E is the hinge point between the bottom of the secondary side guard jack 4 and the primary side guard plate 1; E1 is the projection point of the hinge point E between the bottom of the secondary side guard jack 4 and the primary side guard plate 1 onto the primary side guard plate 1; I is the hinge point between the piston rod of the secondary side guard jack 4 and the secondary side guard plate 2; I1 is the projection point of the hinge point I between the piston rod of the secondary side guard jack 4 and the secondary side guard plate 2 onto the secondary side guard plate 2; O is the hinge point between the primary side guard jack 3 and the telescopic beam 7; O1 is the projection point of the hinge point O between the primary side guard jack 3 and the telescopic beam 7 onto the telescopic beam 7.

[0080] Specifically, the calculation process of the protective feature parameters is as follows:

[0081] The opening angle of the first-level protective board 1 i 1. Calculated using the following formula:

[0082]

[0083] Among them L BD The formula is expressed as:

[0084]

[0085] by Figure 3 and Figure 4 Using point O as the origin, construct a rectangular coordinate system. for L BA The angle between the coordinate axis and the Y-axis is expressed by the formula:

[0086]

[0087] S 1 represents the length of a level 1 protective jack. S 1 = x1 + 911, where 911mm is the length of the first-level support jack at zero stroke.

[0088] The angle between secondary side guard plate 2 and primary side guard plate 1 i 2. Calculated using the following formula:

[0089]

[0090] S 2 represents the length of the secondary side protection jack 4. S 2 = x2 + 795, where 795mm is the length of the secondary side support jack at zero stroke.

[0091] in, L BD It is the distance between the hinge point B of the piston rod of the wide rod 5, the narrow rod 6, and the first-level side protection jack 3, and the hinge point D of the telescopic beam 7 and the first-level side protection plate 1.

[0092] L CD It is the distance between the hinge point C of the wide bar 5 and the first-level guardrail 1 and the hinge point D of the telescopic beam 7 and the first-level guardrail 1.

[0093] L BC It is the distance between the hinge point B of the piston rod of the wide rod 5, the narrow rod 6, and the first-stage side protection jack 3, and the hinge point C of the wide rod 5 and the first-stage side protection plate 1;

[0094] L AD It is the distance between hinge point A of the narrow bar 6 and the telescopic beam 7 and hinge point D of the telescopic beam 7 and the first-level guardrail plate 1;

[0095] L BAThe distance between hinge point A of narrow rod 6 and telescopic beam 7 and hinge point B of piston rod of wide rod 5, narrow rod 6 and first-level side protection jack 3;

[0096] β It is the assembly angle between the telescopic beam 7 and the top beam;

[0097] ∠D 2 DC It is the angle between the line connecting the hinge point D of the telescopic beam 7 and the first-level guardrail plate 1 on the projection point D2 on the first-level guardrail plate 1 and the hinge point D of the telescopic beam 7 and the first-level guardrail plate 1, and the line connecting the hinge point D of the telescopic beam 7 and the first-level guardrail plate 1 and the hinge point C of the wide bar 5 and the first-level guardrail plate 1.

[0098] ∠D 1 Yes It is the angle between the line connecting the hinge point D of the telescopic beam 7 and the first-level guard plate 1 on the telescopic beam 7 and the hinge point D of the telescopic beam 7 and the first-level guard plate 1, and the line connecting the hinge point D of the telescopic beam 7 and the first-level guard plate 1 and the hinge point A of the narrow bar 6 and the telescopic beam 7.

[0099] L A1D1 It is the distance between the projection point A1 of the hinge point A of the narrow bar 6 and the telescopic beam 7 on the telescopic beam 7 and the projection point D1 of the hinge point D of the telescopic beam 7 and the first-level guard plate 1 on the telescopic beam 7.

[0100] L AA1 It is the distance between the hinge point A of the narrow rod 6 and the telescopic beam 7 and the projection point A1 of the hinge point A of the narrow rod 6 and the telescopic beam 7 on the telescopic beam 7;

[0101] L OO1 It is the distance between the hinge point O of the primary side support jack 3 and the telescopic beam 7 and the projection point O1 of the hinge point O of the primary side support jack 3 and the telescopic beam 7 on the telescopic beam 7.

[0102] L O1A1 It is the distance between the projection point O1 of the hinge point O of the first-level protective jack 3 and the telescopic beam 7 on the telescopic beam 7 and the projection point A1 of the hinge point A of the narrow rod 6 and the telescopic beam 7 on the telescopic beam 7.

[0103] L EH It is the distance between the hinge point E of the secondary side protection jack 4 and the primary side protection plate 1 and the hinge point H of the primary side protection plate 1 and the secondary side protection plate 2.

[0104] L IHIt is the distance between the hinge point I of the piston rod of the secondary side jack 4 and the secondary side plate 2 and the hinge point H of the primary side plate 1 and the secondary side plate 2.

[0105] ∠H 1 HE It is the angle between the line connecting the hinge point H of the primary side plate 1 and the secondary side plate 2 on the projection point H1 on the primary side plate 1 and the hinge point H of the primary side plate 1 and the secondary side plate 2, and the line connecting the hinge point H of the primary side plate 1 and the hinge point E of the secondary side plate jack 4 and the primary side plate 1.

[0106] ∠H 2 HI It is the angle between the line connecting the hinge point H of the primary side plate 1 and the secondary side plate 2 on the projection point H2 on the secondary side plate 2 and the hinge point H of the primary side plate 1 and the secondary side plate 2, and the line connecting the hinge point H of the primary side plate 1 and the secondary side plate 2 and the hinge point I of the piston rod of the secondary side plate jack 4 and the secondary side plate 2.

[0107] like Figure 4 As shown, the load on the hydraulic support side protection mechanism is... P Point of combined force of the support and assistance mechanism L The formula for 1 is expressed as:

[0108]

[0109]

[0110] in, L HD ∠ is the distance between the hinge point H of the primary side guard plate 1 and the secondary side guard plate 2 and the hinge point D of the telescopic beam 7 and the primary side guard plate 1; H 1HD is the angle between the line connecting the hinge point H of the primary side panel 1 and the secondary side panel 2 on the projection point H1 on the primary side panel 1 and the hinge point H of the primary side panel 1 and the secondary side panel 2, and the line connecting the hinge point H of the primary side panel 1 and the hinge point D of the telescopic beam 7 and the primary side panel 1.

[0111] in, K 1 and K 2 are simplification parameters used to prevent the formula from becoming too complicated; they have no practical significance. Their formula expression is as follows:

[0112]

[0113]

[0114] k = F 2 / F 1,F 1 represents the support force of the first-level support jacks. F 2 represents the support force of the secondary side support jacks, and the formulas for both are as follows:

[0115]

[0116] In the formula R 1 represents the cylinder diameter of the first-level protective jack 3. R 2 is the cylinder diameter of the secondary side protection jack 4.

[0117] In the formula M The formula is expressed as:

[0118]

[0119] When the load is L Position 1, Level 1 support jack force is F 1. The opening angle of the first-level protective board 1 is: i 1. The angle between the secondary side guard plate 2 and the primary side guard plate 1 is... i At time 2, the corresponding load is P 负载1 The formula is expressed as:

[0120]

[0121] in, α The angle between the piston rod of the first-stage support jack 3 and the X-axis is expressed by the formula:

[0122]

[0123] When the load is L Position 1, secondary side support jack support force is F 2. The opening angle of the first-level protective board 1 is... i 1. The angle between the secondary side guard plate 2 and the primary side guard plate 1 is... i At time 2, the corresponding load is P 负载2 The formula is expressed as:

[0124]

[0125] And the load on the hydraulic support side protection mechanism P satisfy:

[0126]

[0127] In the above formula, ∠ABThe angle between the line connecting the hinge point A of the narrow rod 6 and the telescopic beam 7 and the hinge point B of the piston rod of the wide rod 5, the narrow rod 6 and the first-stage side protection jack 3, and the Y-axis direction.

[0128] ∠BC The angle between the line connecting the hinge point B of the piston rod of the wide rod 5, the narrow rod 6, and the first-stage side protection jack 3, and the hinge point C of the wide rod 5 and the first-stage side protection plate 1, and the Y-axis direction.

[0129] ∠CD The angle between the line connecting the hinge point C of the wide bar 5 and the first-level side guard plate 1 and the hinge point D of the telescopic beam 7 and the first-level side guard plate 1 and the Y-axis direction.

[0130] The opening angle of the primary side panel 1 was calculated. i The angle between the secondary side guard plate 2 and the primary side guard plate 1 i After 2, the opening angle of the first-level protective plate 1 is then... i The angle between the secondary side guard plate 2 and the primary side guard plate 1 i 2. Determine the posture of the secondary side guard plate 2; wherein, the posture of the secondary side guard plate 2 includes the extended state and the retracted state.

[0131] Specifically, for Figure 3 The hydraulic support support mechanism shown in the diagram has the following displacements when fully retracted: the piston rod displacement of the first-stage support jack is x1 = 21.5 mm, and the piston rod displacement of the second-stage support jack is x2 = 470.4 mm.

[0132] With the coal face vertical, the opening angle of the primary side support plate 1 i 1. The angle between the secondary side guard plate 2 and the primary side guard plate 1 i 2 satisfies the following formula:

[0133]

[0134] in, The pitch angle of the top beam.

[0135] The above formula can be used to determine whether the secondary side protection plate 2 is completely in contact with the coal wall, that is:

[0136] when At that time, the posture of the secondary side guard plate 2 is determined to be in the extended state;

[0137] when At that time, the posture of the secondary guard plate 2 is determined to be in the retracted state.

[0138] S 120: Based on the characteristic parameters of each type of protection, determine the membership function and weight coefficient of the characteristic parameters of the corresponding type of protection.

[0139] The membership function formula for each type of protective feature parameter is expressed as follows:

[0140] The opening angle of the first-level protective board 1 i Membership function of 1 LSD 1:

[0141]

[0142] in, i 1临界 for i The critical value of 1 i 1max for i The maximum value of 1 i 1min for i The minimum value of 1, and i 1 i 1临界 At that time, there is a load-bearing position on the secondary side guard plate 2, which causes the secondary side guard jack 4 to reach its maximum load first; i 1> i 1临界 At that time, the first-level protective jack 3 was the first to reach its maximum load.

[0143] The opening angle of the first-level protective board 1 i Membership function of 1 LSD 1. Use a triangular membership function during construction, with the function center being... i 1临界 ,when i When the angle is 90°, the membership degree is 0.6. i When the degree is 60°, the membership degree is 0.

[0144] The angle between secondary side guard plate 2 and primary side guard plate 1 i Membership function of 2 LSD 2:

[0145]

[0146] in, i 2临界 for i The critical value of 2, i 2max for i The maximum value of 2 i 2min for i The minimum value of 2;

[0147] The angle between secondary side guard plate 2 and primary side guard plate 1 i2 is a key parameter for identifying the fit between the hydraulic support side protection mechanism and the coal wall. When the coal wall is not fracturing and the hydraulic support side protection mechanism provides effective support to the coal wall, the following formula should be satisfied:

[0148]

[0149] The angle between secondary side guard plate 2 and primary side guard plate 1 i 2. If too small, it means the secondary side support jack 4 is not extended enough, and the angle between the secondary side support plate 2 and the primary side support plate 1 is too small. i An excessively large angle (2) indicates that the secondary support jack 4 extends too far, which reduces the contact area between the secondary support plate 2 and the coal face, rendering it ineffective. Therefore, the angle between the secondary support plate 2 and the primary support plate 1... i 2. It should satisfy the membership function of the triangle.

[0150] in i 2临界 = 270°- i 1- , i 2min The angle between the secondary side guard plate 2 and the primary side guard plate 1 i The minimum value of 2 is obtained when the displacement of the piston rod of the secondary support jack is x2 = 0 mm; i 2max The angle between the secondary side guard plate 2 and the primary side guard plate 1 i The maximum value of 2 is 180°.

[0151] Level 1 support jack support pressure P Membership function of 1 LSD 3:

[0152]

[0153] Level 2 support jack support pressure P Membership function of 2 LSD 4:

[0154]

[0155] During operation, before contacting the coal face, the initial contact pressure between the primary support jack 3 and the secondary support jack 4 and the coal face reaches the rated pressure of the pump station. When the primary support plate 1 and the secondary support plate 2 are pressed tightly against the coal face, they interact with the coal face and are affected by slight creep and spalling of the coal face. The support pressure of the primary support jack... P Level 1 and Level 2 support jacks support pressure P 2. The pressure will rise to the opening pressure of the safety valve. Therefore, the design of the first-stage support jack is necessary to maintain the support pressure. P Level 1 and Level 2 support jacks support pressureP The membership function of 2 is a trapezoidal membership function, and the function boundary is designed as [0.9]. P 0,1.1 P max ].in P 0 represents the rated pressure of the pumping station. P max Set the opening pressure for the safety valves of the primary support jack 3 and the secondary support jack 4.

[0156] Point of application of the resultant force of the support structure L Membership function of 1 LSD 5:

[0157]

[0158] In the study of load on the secondary side guard plate, the load-bearing capacity of the secondary side guard plate 2 is often considered as a trapezoidal distribution. The point of application of the resultant force of the trapezoidal distribution can be considered as being between the uniformly distributed load and the triangularly distributed load. The point of application of the resultant force of the triangularly distributed load is at 1 / 3 of the secondary side guard plate 2, while the point of application of the resultant force of the uniformly distributed load is at 1 / 2 of the secondary side guard plate 2. Therefore, the average value is taken as the center of the function. Comparing this to the triangular membership function, the point of application of the resultant force of the support mechanism... L The membership function of 1 uses a parabolic membership function, which changes more gently at the center of the function and accelerates as it moves away from the center, making it more suitable for the point of application of the resultant force of the support mechanism. L Description of 1.

[0159] Top beam pitch angle Membership function LSD 6:

[0160]

[0161] in, The pitch angle of the top beam. , These represent the maximum and minimum values ​​of the top beam pitch angle; top beam pitch angle When the angle is less than 0°, the coal wall spalling depth is smaller, and the roof beam pitch angle is also smaller. When the angle is greater than 0°, the coal wall spalling depth is greater. (Top beam pitch angle) Since it varies around 0°, it is designed as a triangular membership function, with the function center set at 0.6. .

[0162] Determine the weighting coefficients for each type of protective feature parameter, including the following steps:

[0163] Using a 0.1-0.9 scaling method, the importance values ​​between each pair of characteristic parameters are scaled. A ijThe fuzzy complementary matrices shown in Table 1 are constructed. A ij The value is between 0.1 and 0.9, representing the importance between the two protective feature parameters being compared.

[0164] Table 1

[0165]

[0166] To eliminate random contradictions in the judgments, it is necessary to transform the fuzzy complementary matrix into a fuzzy consistent judgment matrix. The matrix transformation formula is as follows:

[0167]

[0168] in For fuzzy consistency judgment matrix, The fuzzy complementary matrix is ​​the first The harmony of actions, The fuzzy judgment matrix is ​​the first... The sum of the columns, This represents the number of data points in each row of the fuzzy complementary matrix.

[0169] Fuzzy consistency judgment matrix B ij As shown in Table 2:

[0170] Table 2

[0171]

[0172] according to Calculate the weights and determine the weight coefficients for each protective feature parameter. The calculation formula is as follows:

[0173]

[0174] S 130: Based on the membership function and weight coefficient of the characteristic parameters of each type of support, determine the support status monitoring results of the hydraulic support support mechanism.

[0175] After determining the membership function and weighting coefficient of each type of support feature parameter, pressure and displacement data are collected in real time by sensors. The membership degree of the corresponding support feature parameter is calculated, and combined with the weighting coefficient, it is determined whether the support status of the hydraulic support support mechanism is good.

[0176] The specific protective state U is represented by the following formula:

[0177]

[0178] in, The membership degree calculation results for each protective slope characteristic parameter, and when the protective slope state U When the calculation result is in the range of 0.8-1, the protective barrier status is normal;

[0179] When protecting the gang U When the calculation result is between 0.6 and 0.8, the condition of the protective wall is slightly abnormal;

[0180] When protecting the gang U When the calculation result is between 0.3 and 0.6, the protective barrier status is abnormal;

[0181] When protecting the gang U When the calculation result is between 0 and 0.3, the protection status is considered severely abnormal.

[0182] The beneficial effects of this method are:

[0183] The sensor used in this invention is an integrated pressure and displacement sensor, which integrates an ultrasonic displacement sensor and a pressure sensor in the same housing and is installed at the bottom of the cylinder by a threaded connection. Ultrasonic ranging avoids drilling holes in the piston rod, and the sensor is easy to install and disassemble, avoiding the influence of coal dust, water vapor, and collisions.

[0184] This invention analyzes the posture of the side protection mechanism based on the displacement x1 of the piston rod of the primary side protection jack and the displacement x2 of the piston rod of the secondary side protection jack. It achieves high accuracy and calculates the posture of the side protection mechanism, thus obtaining the opening angle of the primary side protection plate 1. i The angle between the secondary side guard plate 2 and the primary side guard plate 1 i 2. The results are accurate.

[0185] This invention is based on the piston rod displacement x1 of the primary side support jack, the piston rod displacement x2 of the secondary side support jack, and the side support pressure of the primary side support jack. P Level 1 and Level 2 support jacks support pressure P 2. By performing structural mechanics analysis on the side protection mechanism, the maximum load-bearing capacity of the side protection mechanism and the characteristic parameters of the side protection can be obtained, and the intelligent identification results of the side protection status are accurate.

[0186] This invention modifies the membership function of the protective slope feature parameters by adopting a variable membership function, taking into account the interaction relationship between the various protective slope feature parameters, resulting in accurate results.

[0187] like Figure 5 As shown, this invention proposes a monitoring device for the protection status of a hydraulic support protection mechanism, comprising:

[0188] The data processing module 510 is used to acquire the support parameters of the hydraulic support support mechanism and calculate the support characteristic parameters of the hydraulic support support mechanism based on the support parameters.

[0189] The data calculation module 520 is used to determine the membership function and weight coefficient of the corresponding type of protective feature parameters based on the protective feature parameters of each type.

[0190] The status monitoring module 530 is used to determine the status monitoring results of the hydraulic support support mechanism based on the membership function and weight coefficient of the support feature parameters of each type.

[0191] To implement the embodiments, the present invention also proposes a computer device, including an input / output unit, a memory, and a processor. The memory stores computer-readable instructions, which, when executed by the processor, cause the processor to perform the steps in the aforementioned method for monitoring the support status of a hydraulic support support mechanism.

[0192] The present invention also proposes a storage medium storing computer-readable instructions, which, when executed by one or more processors, cause the one or more processors to perform the steps in the aforementioned method for monitoring the support status of a hydraulic support support mechanism.

[0193] Although embodiments of the present invention have been shown and described above, it is understood that the embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the embodiments within the scope of the present invention.

Claims

1. A method for monitoring the support status of a hydraulic support support mechanism, characterized in that, include: Obtain the support parameters of the hydraulic support support mechanism, and calculate the support characteristic parameters of the hydraulic support support mechanism based on the support parameters; wherein, the support parameters include: piston rod displacement x1 of the first-stage support jack, piston rod displacement x2 of the second-stage support jack, and support pressure of the first-stage support jack. P Level 1 and Level 2 support jacks support pressure P 2; The displacement x1 of the piston rod of the primary side support jack and the side support pressure of the primary side support jack. P 1 is obtained through the first sensor installed at the bottom of the cylinder of the first-stage support jack (3) of the hydraulic support support mechanism; the piston rod displacement x2 of the second-stage support jack and the support pressure of the second-stage support jack are obtained. P 2 is obtained through a second sensor installed at the bottom of the cylinder of the secondary support jack (4) of the hydraulic support support mechanism; the support characteristic parameters include the opening angle of the primary support plate (1). θ 1. The angle between the secondary side guardboard (2) and the primary side guardboard (1). θ 2. Level 1 support jack support pressure P 1. Level 2 support jack support pressure P 2. Point of application of the combined force of the support structure L 1 and the pitch angle of the top beam; wherein, the opening angle of the first-level side guard plate (1) θ Formula 1 is expressed as: in L BD The formula is expressed as: A rectangular coordinate system is constructed using the hinge point O of the primary side jack (3) and the telescopic beam (7) as the origin. for L AB The angle between the coordinate axis and the Y-axis is expressed by the formula: ;in S 1 is the length of the primary side support jack (3); the included angle between the secondary side support plate (2) and the primary side support plate (1) is... θ Formula 2 is expressed as: ;in S 2 is the length of the secondary support jack (4); L BD It is the distance between the hinge point B of the piston rod of the wide rod (5), narrow rod (6), and first-level side protection jack (3) and the hinge point D of the telescopic beam (7) and first-level side protection plate (1); L CD It is the distance between the hinge point C of the wide bar (5) and the first-level side guard plate (1) and the hinge point D of the telescopic beam (7) and the first-level side guard plate (1); L BC It is the distance between the hinge point B of the piston rod of the wide rod (5), the narrow rod (6), and the first-level protective jack (3) and the hinge point C of the wide rod (5) and the first-level protective plate (1); L AD It is the distance between the hinge point A of the narrow bar (6) and the telescopic beam (7) and the hinge point D of the telescopic beam (7) and the first-level guard plate (1); L BA The distance between hinge point A of the narrow rod (6) and telescopic beam (7) and hinge point B of the piston rod of the wide rod (5), narrow rod (6) and first-level protective jack (3); β It is the assembly angle between the telescopic beam (7) and the top beam; ∠D 2 DC It is the angle between the line connecting the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) on the projection point D2 on the first-level guardrail plate (1) and the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1), and the line connecting the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) and the hinge point C of the wide bar (5) and the first-level guardrail plate (1); ∠D 1 DA It is the angle between the line connecting the hinge point D of the telescopic beam (7) and the hinge point D of the first-level side plate (1) on the telescopic beam (7) and the line connecting the hinge point D of the telescopic beam (7) and the hinge point A of the narrow rod (6) and the telescopic beam (7). L A1D1 It is the distance between the projection point A1 of the hinge point A of the narrow bar (6) and the telescopic beam (7) on the telescopic beam (7) and the projection point D1 of the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) on the telescopic beam (7); L AA1 It is the distance between the hinge point A of the narrow rod (6) and the telescopic beam (7) and the projection point A1 of the hinge point A of the narrow rod (6) and the telescopic beam (7) on the telescopic beam (7); L OO1 It is the distance between the hinge point O of the first-level support jack (3) and the telescopic beam (7) and the projection point O1 of the hinge point O of the first-level support jack (3) and the telescopic beam (7) on the telescopic beam (7); L O1A1 It is the distance between the projection point O1 of the hinge point O of the first-level support jack (3) and the telescopic beam (7) on the telescopic beam (7) and the projection point A1 of the hinge point A of the narrow rod (6) and the telescopic beam (7) on the telescopic beam (7); L EH It is the distance between the hinge point E of the secondary side jack (4) and the primary side plate (1) and the hinge point H of the primary side plate (1) and the secondary side plate (2); L IH It is the distance between the hinge point I of the piston rod of the secondary side jack (4) and the hinge point H of the primary side jack (1) and the secondary side jack (2); ∠H 1 HE It is the angle between the projection point H1 of the hinge point H of the first-level side plate (1) and the second-level side plate (2) on the first-level side plate (1) and the line connecting the hinge point H of the first-level side plate (1) and the second-level side plate (2), and the line connecting the hinge point H of the first-level side plate (1) and the hinge point E of the second-level side plate jack (4) and the first-level side plate (1); ∠H 2 HI The angle between the projection point H2 of the hinge point H of the primary side plate (1) and the secondary side plate (2) on the secondary side plate (2) and the line connecting the hinge point H of the primary side plate (1) and the secondary side plate (2), and the line connecting the hinge point H of the primary side plate (1) and the hinge point I of the piston rod of the secondary side plate jack (4) and the secondary side plate (2); the point of application of the resultant force of the support force of the side plate mechanism. L The formula for 1 is expressed as: ;in, L HD The distance between the hinge point H of the primary side guard plate (1) and the secondary side guard plate (2) and the hinge point D of the telescopic beam (7) and the primary side guard plate (1); ∠ H 1HD is the angle between the projection point H1 of the hinge point H of the first-level side panel (1) and the second-level side panel (2) on the first-level side panel (1) and the line connecting the hinge point H of the first-level side panel (1) and the second-level side panel (2), and the line connecting the hinge point H of the first-level side panel (1) and the hinge point D of the telescopic beam (7) and the first-level side panel (1); K 1 and K 2 are simplification parameters used to prevent the formula from becoming too complicated; they have no practical significance. Their formula expression is as follows: , ; k = F 2 / F 1, F 1 represents the support force of the first-level support jacks. F 2 represents the support force of the secondary side support jacks, and the formulas for both are as follows: , , R 1 is the cylinder diameter of the first-level support jack (3), R 2 is the cylinder diameter of the secondary side support jack (4); α The angle between the piston rod of the primary support jack (3) and the X-axis is expressed by the formula: ; M The formula is expressed as: ; ∠AB The angle between the line connecting the hinge point A of the narrow rod (6) and the telescopic beam (7) and the hinge point B of the piston rod of the wide rod (5), the narrow rod (6) and the first-level protective jack (3) and the Y-axis direction; ∠BC The angle between the line connecting the hinge point B of the piston rod of the wide rod (5), the narrow rod (6), and the first-level side jack (3) and the hinge point C of the wide rod (5) and the first-level side jack (1) and the Y-axis direction; ∠CD The angle between the line connecting the hinge point C of the wide bar (5) and the first-level side guard plate (1) and the hinge point D of the telescopic beam (7) and the first-level side guard plate (1) and the Y-axis direction; Based on the protective feature parameters of each type, determine the membership function and weight coefficient of the protective feature parameters of the corresponding type; Based on the membership function and weight coefficient of the side protection characteristic parameters of each type, the side protection status monitoring results of the hydraulic support side protection mechanism are determined.

2. The hydraulic support shroud condition monitoring method of claim 1, wherein, After calculating the opening angle of the primary protective plate (1) and the angle between the secondary protective plate (2) and the primary protective plate (1) in the protective plate characteristic parameters, the method further includes determining the posture of the secondary protective plate (2) based on the opening angle of the primary protective plate (1) and the angle between the secondary protective plate (2) and the primary protective plate (1); wherein, The posture of the secondary side guard plate (2) includes an extended state and a retracted state.

3. The hydraulic support shroud mechanism shroud state monitoring method according to claim 2, characterized by, The posture of the secondary protective plate (2) is determined by the opening angle of the primary protective plate (1) and the angle between the secondary protective plate (2) and the primary protective plate (1), including: When the sum of the opening angle of the first-level support plate (1) and the angle between the second-level support plate (2) and the first-level support plate (1) is greater than the preset first angle threshold, it is determined that the posture of the second-level support plate (2) of the hydraulic support support mechanism is the extended state. When the sum of the opening angle of the first-level support plate (1) and the angle between the second-level support plate (2) and the first-level support plate (1) is less than a preset first angle threshold, it is determined that the posture of the second-level support plate (2) of the hydraulic support support mechanism is the retracted state.

4. The hydraulic support shroud mechanism shroud state monitoring method according to claim 1, characterized by, In the step of determining the membership function of the corresponding type of protective feature parameters based on the protective feature parameters of each type, the membership function formula for each type of protective feature parameter is expressed as follows: Opening angle of primary fender (1) θ Membership function of 1 LSD 1: wherein, θ 1临界 is θ 1, θ 1max is θ 1, and θ 1 θ 1临界 When the load is applied to the secondary fender (2), the maximum load is reached first by the secondary fender jack (4) because of the load-bearing position on the secondary fender (2). θ 1> θ 1临界 When the load is applied, the primary jacks (3) reach maximum load bearing first. The angle between the secondary fender (2) and the primary fender (1) θ The membership function of 2 LSD 2: wherein θ 2临界 is θ 2, a critical value, θ 2max is θ 2, a maximum value; is θ 2, a minimum value; The membership function of the primary support jack (3) support pressure LSD 3: The membership function of the secondary support jack (4) support pressure LSD 4: wherein P 0 is the rated pressure of the pump station, P max 1 is the safety valve opening pressure of the primary shoring jack (3) and the secondary shoring jack (4); P 1 is the safety valve opening pressure of the primary shoring jack (3) and the secondary shoring jack (4); P 2 is the safety valve opening pressure of the primary shoring jack (3) and the secondary shoring jack (4); Membership function of resultant point of support mechanism support forces LSD 5: wherein, L 1max is the point of action of the resultant of the support forces of the support means L 1 is the maximum value; Top beam pitch angle membership function LSD 6: wherein is the top beam pitch angle, , are the maximum and minimum values of the top beam pitch angle, respectively.

5. The hydraulic support shroud mechanism shroud state monitoring method according to claim 4, characterized by, When the coal face is not spalled and the support structure provides effective support for the coal face, the following formula should be satisfied: Wherein, when the displacement of the piston rod of the secondary side jack is 0, the angle between the secondary side jack (2) and the primary side jack (1) is... θ 2. Take the minimum value; the angle between the secondary side guard plate (2) and the primary side guard plate (1) θ The maximum value of 2 is 180°.

6. A monitoring device for monitoring the state of a hydraulic support shoring mechanism, for implementing the method for monitoring the state of a hydraulic support shoring mechanism according to any one of claims 1 to 5, characterized in that, include: The data processing module (510) is used to acquire the support parameters of the hydraulic support support mechanism and calculate the support characteristic parameters of the hydraulic support support mechanism based on the support parameters; wherein, the support parameters include: piston rod displacement x1 of the first-stage support jack, piston rod displacement x2 of the second-stage support jack, and support pressure of the first-stage support jack. P Level 1 and Level 2 support jacks support pressure P 2; The displacement x1 of the piston rod of the primary side support jack and the side support pressure of the primary side support jack. P 1 is obtained through the first sensor installed at the bottom of the cylinder of the first-stage support jack (3) of the hydraulic support support mechanism; the piston rod displacement x2 of the second-stage support jack and the support pressure of the second-stage support jack are obtained. P 2 is obtained through a second sensor installed at the bottom of the cylinder of the secondary support jack (4) of the hydraulic support support mechanism; the support characteristic parameters include the opening angle of the primary support plate (1). θ 1. The angle between the secondary side guardboard (2) and the primary side guardboard (1). θ 2. Level 1 support jack support pressure P 1. Level 2 support jack support pressure P 2. Point of application of the combined force of the support structure L 1 and the pitch angle of the top beam; wherein, the opening angle of the first-level side guard plate (1) θ Formula 1 is expressed as: in L BD The formula is expressed as: A rectangular coordinate system is constructed using the hinge point O of the primary side jack (3) and the telescopic beam (7) as the origin. for L AB The angle between the coordinate axis and the Y-axis is expressed by the formula: ;in S 1 is the length of the primary side support jack (3); the included angle between the secondary side support plate (2) and the primary side support plate (1) is... θ Formula 2 is expressed as: ;in S 2 is the length of the secondary support jack (4); L BD It is the distance between the hinge point B of the piston rod of the wide rod (5), narrow rod (6), and first-level side protection jack (3) and the hinge point D of the telescopic beam (7) and first-level side protection plate (1); L CD It is the distance between the hinge point C of the wide bar (5) and the first-level side guard plate (1) and the hinge point D of the telescopic beam (7) and the first-level side guard plate (1); L BC It is the distance between the hinge point B of the piston rod of the wide rod (5), the narrow rod (6), and the first-level protective jack (3) and the hinge point C of the wide rod (5) and the first-level protective plate (1); L AD It is the distance between the hinge point A of the narrow bar (6) and the telescopic beam (7) and the hinge point D of the telescopic beam (7) and the first-level guard plate (1); L BA The distance between hinge point A of the narrow rod (6) and telescopic beam (7) and hinge point B of the piston rod of the wide rod (5), narrow rod (6) and first-level protective jack (3); β It is the assembly angle between the telescopic beam (7) and the top beam; ∠D 2 DC It is the angle between the line connecting the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) on the projection point D2 on the first-level guardrail plate (1) and the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1), and the line connecting the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) and the hinge point C of the wide bar (5) and the first-level guardrail plate (1); ∠D 1 DA It is the angle between the line connecting the hinge point D of the telescopic beam (7) and the hinge point D of the first-level side plate (1) on the telescopic beam (7) and the line connecting the hinge point D of the telescopic beam (7) and the hinge point A of the narrow rod (6) and the telescopic beam (7). L A1D1 It is the distance between the projection point A1 of the hinge point A of the narrow bar (6) and the telescopic beam (7) on the telescopic beam (7) and the projection point D1 of the hinge point D of the telescopic beam (7) and the first-level guardrail plate (1) on the telescopic beam (7); L AA1 It is the distance between the hinge point A of the narrow rod (6) and the telescopic beam (7) and the projection point A1 of the hinge point A of the narrow rod (6) and the telescopic beam (7) on the telescopic beam (7); L OO1 It is the distance between the hinge point O of the first-level support jack (3) and the telescopic beam (7) and the projection point O1 of the hinge point O of the first-level support jack (3) and the telescopic beam (7) on the telescopic beam (7); L O1A1 It is the distance between the projection point O1 of the hinge point O of the first-level support jack (3) and the telescopic beam (7) on the telescopic beam (7) and the projection point A1 of the hinge point A of the narrow rod (6) and the telescopic beam (7) on the telescopic beam (7); L EH It is the distance between the hinge point E of the secondary side jack (4) and the primary side plate (1) and the hinge point H of the primary side plate (1) and the secondary side plate (2); L IH It is the distance between the hinge point I of the piston rod of the secondary side jack (4) and the hinge point H of the primary side jack (1) and the secondary side jack (2); ∠H 1 HE It is the angle between the projection point H1 of the hinge point H of the first-level side plate (1) and the second-level side plate (2) on the first-level side plate (1) and the line connecting the hinge point H of the first-level side plate (1) and the second-level side plate (2), and the line connecting the hinge point H of the first-level side plate (1) and the hinge point E of the second-level side plate jack (4) and the first-level side plate (1); ∠H 2 HI The angle between the projection point H2 of the hinge point H of the primary side plate (1) and the secondary side plate (2) on the secondary side plate (2) and the line connecting the hinge point H of the primary side plate (1) and the secondary side plate (2), and the line connecting the hinge point H of the primary side plate (1) and the hinge point I of the piston rod of the secondary side plate jack (4) and the secondary side plate (2); the point of application of the resultant force of the support force of the side plate mechanism. L The formula for 1 is expressed as: ;in, L HD The distance between the hinge point H of the primary side guard plate (1) and the secondary side guard plate (2) and the hinge point D of the telescopic beam (7) and the primary side guard plate (1); ∠ H 1HD is the angle between the projection point H1 of the hinge point H of the first-level side panel (1) and the second-level side panel (2) on the first-level side panel (1) and the line connecting the hinge point H of the first-level side panel (1) and the second-level side panel (2), and the line connecting the hinge point H of the first-level side panel (1) and the hinge point D of the telescopic beam (7) and the first-level side panel (1); K 1 and K 2 are simplification parameters used to prevent the formula from becoming too complicated; they have no practical significance. Their formula expression is as follows: , ; k = F 2 / F 1, F 1 represents the support force of the first-level support jacks. F 2 represents the support force of the secondary side support jacks, and the formulas for both are as follows: , , R 1 is the cylinder diameter of the first-level support jack (3), R 2 is the cylinder diameter of the secondary side support jack (4); α The angle between the piston rod of the primary support jack (3) and the X-axis is expressed by the formula: ; M The formula is expressed as: ; ∠AB The angle between the line connecting the hinge point A of the narrow rod (6) and the telescopic beam (7) and the hinge point B of the piston rod of the wide rod (5), the narrow rod (6) and the first-level protective jack (3) and the Y-axis direction; ∠BC The angle between the line connecting the hinge point B of the piston rod of the wide rod (5), the narrow rod (6), and the first-level side jack (3) and the hinge point C of the wide rod (5) and the first-level side jack (1) and the Y-axis direction; ∠CD The angle between the line connecting the hinge point C of the wide bar (5) and the first-level side guard plate (1) and the hinge point D of the telescopic beam (7) and the first-level side guard plate (1) and the Y-axis direction; The data calculation module (520) is used to determine the membership function and weight coefficient of the corresponding type of the protective feature parameters based on the protective feature parameters of each type; The status monitoring module (530) is used to determine the status monitoring results of the hydraulic support support mechanism based on the membership function and weight coefficient of the support feature parameters of each type.

7. A computer device, characterized in that, It includes an input / output unit, a memory, and a processor. The memory stores computer-readable instructions, which, when executed by the processor, cause the processor to perform the steps in the method for monitoring the support status of a hydraulic support support mechanism as described in any one of claims 1 to 5.

8. A storage medium storing computer-readable instructions, characterized in that, When the computer-readable instructions are executed by one or more processors, the one or more processors perform the steps in the method for monitoring the support status of a hydraulic support support mechanism as described in any one of claims 1 to 5.

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