Tower body standard knot assembly optimization method and twin monitoring system

Abstract

The invention provides a tower body standard knot assembly optimization method and a twin monitoring system, the system comprises a vehicle equipment end, a server and a client, and the vehicle equipment end is used for sending tower body label combination information and vehicle real-time working condition data to the server; the server is used for building a tower crane 3D twinborn model, calculating load and stress borne by standard knots in real time, building a corresponding relation between tower body standard knot labels and the standard knots in the tower crane 3D twinborn model, storing related information of the standard knots, calculating historical evaluation indexes of the standard knots and recommending an optimal standard knot assembly sequence; and the client is used for displaying tower crane 3D twin model actions and historical information of each standard knot, setting weights according to the concerned direction of a user, and displaying an optimal standard knot assembly sequence. According to the method, the optimal assembly sequence of the tower body is recommended based on the use duration and historical stress data of the standard knots, the risk that the short-service-life and unsafe standard knots are installed at the maximum stress position is effectively avoided, and the overall safety and stability of the tower body are improved.

Description

Technical Field

[0001] The invention discloses a tower body standard section assembly optimization method and a twin monitoring system, belonging to the technical field of tower crane safety monitoring. Background Art

[0002] During the construction of a tower crane, the standard section of the tower body is the core component that supports the entire tower crane, and its safety is of vital importance. When the tower body is working, the standard section at the bottom of the tower body often bears a larger load, while the load borne by the standard section at the top of the tower body is much smaller than that of the bottom standard section. The loads borne by the standard sections of the tower body placed in different positions are different. The existing scheme cannot calculate the strength of the tower body in real time and identify the real-time strength differences of the standard sections of the tower body under the same working conditions; after a period of time, the differences between the standard sections will increase significantly. When the tower body is used for a long time, the loads borne by each standard section are not recorded and managed accordingly, and it is impossible to conduct an effective and accurate safety assessment of the current standard section status, and it is impossible to identify the differences in the remaining life of each standard section. The existing scheme cannot recommend the most reasonable boom section installation sequence to users, and cannot avoid the standard section with greater damage being placed at the bottom of the tower body with greater load, which poses a great safety hazard. Summary of the invention

[0003] The purpose of the present invention is to provide a tower body standard section assembly optimization method and twin monitoring system, by acquiring the actual vehicle working condition information to establish a tower crane 3D twin model, during the construction process, the real-time strength calculation of each standard section is performed, and the current standard section status is effectively and accurately evaluated for safety. At the same time, based on the factory label of the tower body standard section, the real-time calculation results are recorded and managed synchronously, and before the next use of the tower body, the optimal standard section assembly sequence is recommended, effectively avoiding the risk of short-life and low-safety standard sections being placed in the maximum stress position, and improving the overall safety and stability of the tower body.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] The present invention provides a tower body standard section assembly optimization method, comprising:

[0006] A tower body label database is established based on the factory labels of the tower body standard sections to store the stress data of each standard section during use;

[0007] After the tower body is assembled, the factory labels of the tower body standard sections are scanned to identify the label numbers corresponding to the standard sections at different positions, and the tower body assembly sequence is obtained;

[0008] During the use of the tower body, the stress of the standard nodes at different positions is calculated in real time, and the stress value of the standard node is stored in the standard node corresponding to the tower body tag database based on the tower body assembly sequence;

[0009] Before the next use of the tower body, the historical evaluation index of each standard section is calculated based on the historical stress and usage time of each standard section of the tower body, and the optimal standard section assembly sequence is recommended.

[0010] Preferably, the method further comprises:

[0011] Each time the tower body standard section changes, the factory label of the tower body standard section is rescanned to obtain the tower body assembly sequence, and the calculated standard section stress value is stored in the standard section corresponding to the tower body label database based on the latest tower body assembly sequence.

[0012] Preferably, the tower body label database stores data using the original label number of each standard node as one page, the first column of each page is the number of calculations, and the second column is the standard node stress.

[0013] Preferably, the storage method of the standard node stress in the tower body label database is:

[0014] Initially, the default number of calculations for each row is C ni =1, when calculating for the first time, the stress calculation result is stored in the first row and second column as M ni ;

[0015] During the next calculation, the current stress calculation result is compared with the latest stress storage result to calculate:

[0016] ,

[0017] If the calculated value is less than 2%, no separate row record is made, and only the calculation times of the row where the latest stress storage result is located are added by 1, and the stress storage value remains unchanged;

[0018] Otherwise, record in the next line the number of calculations and the result of this stress calculation, and so on;

[0019] Where n represents the original label number of the standard section, i represents the i-th row, C ni Indicates the number of calculations for the i-th row of standard section n, M ni Represents the stress data stored in the i-th row of standard node n.

[0020] Preferably, the method of calculating the historical evaluation index of each standard section based on the historical stress and the service life of each standard section of the tower body and recommending the optimal standard section assembly sequence includes:

[0021] The number of stress calculations and the corresponding stress values ​​of a single standard section during use are obtained from the tower body tag database to calculate the use time of the standard section. and the maximum stress of the standard node M n ;

[0022] The length of time used and the maximum stress of the standard node M n Perform normalization processing;

[0023] Set the elapsed time and the maximum stress of the standard node M n Weight;

[0024] Calculate the standard section historical assessment index: ,

[0025] in, represents the historical evaluation index of standard section n, and are the weights of the used time and the maximum stress of the standard section, and are the normalized values ​​of the used time and the maximum stress of the standard section respectively;

[0026] It is recommended to assemble the standard sections from bottom to top of the tower in ascending order according to the historical evaluation index of the standard sections.

[0027] The present invention also provides a tower body standard section assembly twin monitoring system, which is used to implement the above-mentioned tower body standard section assembly optimization method. The system includes: a vehicle equipment end, a server and a client.

[0028] The vehicle equipment end is used to send tower body related data to the server, wherein the tower body related data includes tower body label combination information and vehicle real-time working condition data;

[0029] The server comprises:

[0030] The model library and reconstruction module is used to build a 3D twin model of the tower crane and drive the real-time movement of the 3D twin model of the tower crane based on the real-time working condition data sent by the vehicle equipment end to realize the tower crane movement;

[0031] Strength calculation module, used to calculate the total load on the upper part of the tower in real time, as well as the real-time load and stress borne by each standard section under the current working conditions;

[0032] The label marking and recording module is used to establish the corresponding relationship between the tower body standard section label and the standard section in the tower crane 3D twin model, and store the standard section stress data;

[0033] The assembly recommendation module is used to calculate the historical evaluation index of each standard section based on the historical load data in the tower body label database and the set weight, and recommend the optimal standard section assembly sequence;

[0034] The client is used to display the actions of the 3D twin model of the tower crane and the historical information of each standard section of the tower body, and to set weights based on the user's concerns, and to display the optimal standard section assembly sequence under the weights.

[0035] Preferably, the tower body label combination information is a tower body assembly sequence during the use of the tower crane, and the tower body assembly sequence means that after the tower body is assembled, the factory labels of the tower body standard sections are scanned to identify the label numbers corresponding to the standard sections at different positions to obtain the tower body assembly sequence;

[0036] The real-time working condition data of the vehicle include lifting load, boom length, boom amplitude, rotation angle and wind speed data.

[0037] Preferably, the model library and reconstruction module include:

[0038] Tower crane equipment model library, including 3D visualized tower crane equipment models of different tonnages. A single equipment model consists of motion mechanism parts and a 3D model of the body.

[0039] The 3D model reconstruction submodule is used to reconstruct the tower crane equipment model according to the real-time operating condition data of the vehicle sent by the vehicle equipment end, complete the reorganization and assembly of the tower crane equipment model, and obtain the 3D twin model of the tower crane; and drive the real-time movement of the 3D twin model of the tower crane based on the real-time operating condition data sent by the vehicle equipment end.

[0040] Preferably, the intensity calculation module is specifically used to:

[0041] Calculate the total load on the upper part of the tower body based on the real-time vehicle working condition data sent by the vehicle equipment end, including the hoisting weight, upper tipping bending moment and wind bending moment;

[0042] Based on the tower body calculation data, tower body structure data and real-time working condition data, the real-time load and stress borne by each standard section under the current working condition are calculated.

[0043] Preferably, the label marking and recording module includes:

[0044] The label marking submodule is used to establish a matching relationship between the label of the physical tower body standard section and the standard section of the tower crane 3D twin model, and identify the position of the standard section in the tower crane 3D twin model corresponding to each label;

[0045] The label database is used to record and store the stress calculation times and stress data corresponding to each standard section label.

[0046] Preferably, the assembly recommendation module is specifically used to:

[0047] Call the server's tag database to obtain the number of stress calculations and the corresponding stress values ​​during the use of a single standard section, and calculate the length of time the standard section has been used and the maximum stress M of the standard node n ;

[0048] The length of time used and the maximum stress M of the standard node n Perform normalization processing;

[0049] Set the elapsed time and the maximum stress M of the standard node n Weight;

[0050] Calculate the standard section historical assessment index: ,

[0051] in, represents the historical evaluation index of standard section n, and are the weights of the used time and the maximum stress of the standard section, and are the normalized values ​​of the used time and the maximum stress of the standard section respectively;

[0052] It is recommended to assemble the standard sections from bottom to top of the tower in ascending order according to the historical evaluation index of the standard sections.

[0053] Preferably, the length of time the standard section has been used The calculation method is:

[0054] In the label database, all stress calculation times of a single standard section in use are accumulated and multiplied by the single data transmission time during stress calculation to obtain the usage time of the standard section;

[0055] The maximum stress of the standard section is M n The calculation method is: take the maximum value of all stress storage data of a single standard section in the label database during use as the maximum stress of the standard section.

[0056] Preferably, the client comprises:

[0057] Model-driven display, used to display the actions of the tower crane 3D twin model in real time;

[0058] Historical data display is used to show the usage times and load bearing data of each standard section of the tower body in the historical time period;

[0059] The assembly recommendation display is used to set weights based on the user's concerns and display the optimal standard section assembly sequence under the weights.

[0060] The beneficial effects brought by the technical solution of the present invention are as follows:

[0061] (1) The present invention provides a tower body standard section assembly optimization method and a twin monitoring system. By acquiring actual vehicle working condition information, a 3D twin model of a tower crane is established. During the construction process, stress calculation is performed in real time based on the tower body standard section labels. When the tower body is reassembled, the historical stress conditions of the tower body standard sections are considered, and the optimal assembly sequence of the tower body is recommended, thereby effectively avoiding the risk of short-lived and unsafe standard sections being installed in the position with the greatest stress, thereby improving the overall safety and stability of the tower body.

[0062] (2) The present invention establishes the physical and motion mapping of the real tower crane through the model library and reconstruction module, realizes the real-time driving of the 3D twin model of the tower crane, and the client can view the working condition and status of the equipment.

[0063] (3) The present invention establishes a matching relationship between the label of the physical tower body and the standard section of the tower crane 3D twin model through the label marking and recording module, records the load and bearing strength data of the standard section corresponding to each label, and can perform effective and accurate safety assessment of the status of each standard section. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic diagram of a tower body standard section assembly optimization method provided by an embodiment of the present invention;

[0065] Figure 2 A schematic diagram of the deployment of a twin monitoring system for tower standard section assembly provided by an embodiment of the present invention;

[0066] Figure 3 A schematic diagram of the deployment of functional modules on the server side in the twin monitoring system for tower body standard section assembly provided in an embodiment of the present invention;

[0067] Figure 4 A schematic diagram of the data storage rules of the tower body label library provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0069] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0070] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0071] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0072] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0073] It should be emphasized here that the step marks mentioned below are not intended to limit the order of the steps, but it should be understood that the steps can be executed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be executed simultaneously.

[0074] The first embodiment of the present invention provides a tower standard section assembly optimization method, which establishes a tower label database based on the factory labels of the tower standard sections, and collects and stores the corresponding standard section data by scanning the tower assembly label sequence during the use of the tower. Combined with the historical load data of each standard section in the label database, the optimal standard section assembly sequence is recommended, thereby improving the overall safety and stability of the tower crane. Figure 1 , the method comprising:

[0075] (1) A tower body label database is established based on the factory labels of the tower body standard sections to store the stress data of each standard section during use. It should be noted that each standard section of the tower body has a unique corresponding label number.

[0076] (2) After the tower body is assembled, the factory labels of the tower body standard sections are scanned to identify the label numbers corresponding to the standard sections at different positions and obtain the tower body assembly sequence.

[0077] (3) During the use of the tower body, the stress conditions of each standard section at different positions are calculated in real time, and the stress values ​​of the corresponding standard sections are stored in the corresponding standard sections in the label database based on the tower body assembly sequence.

[0078] (4) Every time the tower boom section changes (such as adding a boom section, reassembling, etc.), the factory label of the tower standard section is rescanned to obtain the tower assembly sequence, and then the real-time calculated standard section stress is stored in the corresponding standard section.

[0079] (5) Before the next use of the tower body, the historical evaluation index of each standard section is calculated based on the historical stress and usage time of each standard section of the tower body, and the optimal standard section assembly sequence is recommended to improve the overall safety and stability of the tower crane.

[0080] In the embodiment of the present invention, the tower body label database stores data with the original label number of each standard section as one page. Figure 4 , the data storage rules are as follows:

[0081] The first column on each page is the number of calculations C ni The second column is the arm stress M ni . Initially, by default, if data is stored for each row, the number of calculations is C ni =1. Store the stress calculation result as M ni ;

[0082] The next time you calculate, compare the stress calculation results with the latest stored stress results and calculate:

[0083] ,

[0084] If the calculated value is less than 2%, in order to reduce the amount of data storage, no separate row is recorded, and only the calculation times of the row where the latest stress storage result is located are superimposed by 1, that is, let C ni =C ni +1, stress value M ni constant;

[0085] Otherwise save C on the next line ni And the stress calculation results of this time, and so on. It should be noted that the initial number of calculations is 1.

[0086] Where n represents the original label number of the standard section; i represents the i-th row, i.e., the i-th stress storage data; C ni Indicates the number of times the stress data of the i-th row of the standard section n is calculated; M ni Represents the stress data stored in the i-th row of standard node n.

[0087] It should be noted that the data for the above-mentioned stress calculation comes from the data transmitted by the actual vehicle (or prototype vehicle) at a frequency of once every 10 seconds, and a stress calculation and verification is performed immediately after each data acquisition.

[0088] Furthermore, the total number of calculations during the historical use of each standard section can be obtained from the historical data in the tower tag database:

[0089] ,

[0090] Standard section used time: ,

[0091] Maximum stress of standard section: M n =max(M ni ) = max(M n1 , M n2 , M n3 ,…).

[0092] In the embodiment of the present invention, based on the historical stress and service time of each standard section of the tower body, the historical evaluation index of each standard section is calculated, and the optimal standard section assembly sequence is recommended. The specific implementation process is as follows:

[0093] Obtain the number of stress calculations and corresponding stress values ​​of each standard section during use from the tower body label database, and calculate the usage time of each standard section and the maximum stress of the standard node M n ;

[0094] Used time and the maximum stress of the standard node M n Perform normalization processing;

[0095] Set the elapsed time and the maximum stress of the standard node M n Weight, such as setting the usage time The weight is Q1, the maximum stress of the standard node is M n The weight is Q2;

[0096] Calculate the standard section historical assessment index: ,

[0097] Historical Assessment Index The smaller it is, the safer the standard section is considered;

[0098] When the tower is reassembled, it is recommended to follow the standard section history assessment index Assemble them in order from small to large from bottom to top on the tower body.

[0099] In this embodiment, the used time and the maximum stress of the standard node M n Normalization is performed as follows:

[0100] Calculate the maximum usage time of a single standard section among all standard sections: H _ MAX=max(H n ) = max(H A , H B H C ,…),

[0101] Calculate the maximum stress among all standard nodal stresses: M _ MAX=max(M n ) = max(M A , M B , M C ,…);

[0102] Normalize the used time of the standard section: ,

[0103] Normalize the maximum stress of the standard node: .

[0104] Based on the above optimization method, the standard section assembly sequence is recommended by taking the tower body factory label numbers A, B, C, D, and E as an example. The steps are as follows:

[0105] Step 1: retrieve the historical load data of each standard section from the tower body label database. Assume that the acquired data is as shown in Table 1 below, where the stress unit is MPa.

[0106] Table 1 Historical data of the tower database

[0107] <![CDATA[Number of calculations C for arm section A Ai > <![CDATA[Stress value M of arm section A Ai > <![CDATA[Number of calculations for arm segment B Bi > <![CDATA[B stress value M of the arm segment Bi > <![CDATA[Number of calculations for arm segment C Ci > <![CDATA[The stress value M of the arm section C Ci > <![CDATA[Number of calculations C for arm segment D Di > <![CDATA[Stress value M of arm section D Di > <![CDATA[Calculation times C of arm section E Ei > <![CDATA[Arm joint E stress value M Ei > 10 36 12 62 2 35 35 50 32 32 16 66 15 66 30 38 75 88 65 82 1 78 7 88 35 50 7 111 17 56 50 98 35 115 7 76 25 121 5 88 31 113 16 176 16 86 6 156 17 55 15 155 9 201 19 215 3 188 9 90 1 198 13 211 3 211 11 213 13 112 18 171 28 199 8 156 8 201 38 111 18 202 1 192 2 210 12 98 27 160 5 166 15 166

[0108] Step 2: Calculate the usage time and maximum stress of each standard section:

[0109] 1) Calculation times of arm segment A: ,

[0110] Boom A usage time: ,

[0111] Maximum stress of arm section A: M A = max(M A1 , M A2 , M A3 ,…)=202 MPa;

[0112] 2) Calculation times of arm section B: ,

[0113] Boom section B usage time: ,

[0114] Maximum stress of arm section B: M B = max(M B1 , M B2 , M B3 ,…)=211MPa;

[0115] 3) Calculation times of arm section C: ,

[0116] Boom section C has been used for: ,

[0117] Maximum stress of arm section C: M C = max(M C1 , M C2 , M C3 ,…)=215MPa;

[0118] 4) Calculation times of arm segment D: ,

[0119] Boom section D usage time: ,

[0120] Maximum stress of arm section D: M D = max(M D1 , M D2 , M D3 ,…)=213MPa;

[0121] 5) Number of calculations for arm segment E: ,

[0122] Boom E usage time: ,

[0123] Maximum stress of arm section E: M E = max(M E1 , M E2 , M E3 ,…)=122MPa.

[0124] Step 3: Normalization

[0125] The maximum duration of all standard sections: H _ MAX = max(H A ,H B ,H C ,H D ,H E )= ,

[0126] The maximum stress among all standard nodal stresses: M _ MAX = max(M A , M B , M C ,M D , M E ) = 215MPa.

[0127] 1) Normalization of the usage time of arm segment A: ,

[0128] Normalized maximum stress of arm section A: .

[0129] 2) Normalization of the usage time of arm segment B: ,

[0130] Normalized maximum stress of arm section B: .

[0131] 3) Normalization of the usage time of arm segment C: ,

[0132] Normalized maximum stress of arm section C: .

[0133] 4) Normalization of the used time of arm segment D: ,

[0134] Normalized maximum stress of arm section D: .

[0135] 5) Normalization of the usage time of arm segment E: ,

[0136] Normalized maximum stress of arm section E: .

[0137] Step 4: Set the weight. Assume that the usage time The weight is Q1=0.8, the maximum stress of the standard node is M n The weight is Q2=0.2.

[0138] Historical evaluation index based on standard sections Calculate the historical evaluation index of each standard section, and the corresponding calculation data is shown in Table 2 below.

[0139] Boom A historical evaluation index: ,

[0140] B-section historical assessment index: ,

[0141] Arm segment C historical assessment index: ,

[0142] Arm segment D historical assessment index: ,

[0143] Boom E historical evaluation index: .

[0144] Table 2 Historical evaluation index of each standard section

[0145] Standard section label number <![CDATA[Standard section's used duration H n > <![CDATA[Normalized usage duration of standard sections#timg# n > <![CDATA[Maximum stress M of standard section n > <![CDATA[Normalization of the maximum stress of the standard section #timg# n > <![CDATA[Historical evaluation index F of each standard section n > A #timg# #timg# 202 #timg# #timg# B #timg# #timg# 211 #timg# #timg# C #timg# #timg# 215 #timg# #timg# D #timg# #timg# 213 #timg# #timg# E #timg# #timg# 112 #timg# #timg#

[0146] Step 5: Assembly sequence recommendation. Sort by small to large, historical evaluation index F n The smaller the standard section, the safer it is. When the tower is reassembled, it is recommended to follow the historical evaluation index of the standard section. The CBEADs are assembled in the corresponding positions from bottom to top of the tower body in ascending order.

[0147] The second embodiment of the present invention provides a tower body standard section assembly twin monitoring system, which establishes a 3D twin model of the tower crane by acquiring actual vehicle working condition information, records stress data in real time based on the tower body standard section labels during the construction process, and recommends the optimal assembly sequence of the tower body standard sections. Figure 2 The system includes a vehicle device, a server, and a client, wherein:

[0148] The vehicle equipment side covers the entire working state of the tower crane, and has the function of sending data to the server. The sent data consists of two parts: tower body label combination information and vehicle real-time working condition data. The tower body label combination information is the tower body assembly sequence during the tower crane construction process, which automatically matches the tower body factory label to prepare for the subsequent standard section data recording and storage; the vehicle real-time working condition data includes real-time data such as lifting load, boom length, amplitude change, rotation angle, wind speed, etc.

[0149] The server plays the role of data transfer, calculation, update and storage, see Figure 3 The server includes a model library and reconstruction module, a strength calculation module, a label marking and recording module, and an assembly recommendation module. Each standard section of the tower body has a unique corresponding label number, and the standard section data is stored based on this label number.

[0150] The functions of each server module are as follows:

[0151] The model library and reconstruction module includes a tower crane equipment model library and a 3D model reconstruction submodule. The tower crane equipment model library contains three-dimensional visual kinematic models involving different tonnages, and a single equipment model consists of motion mechanism components and a 3D model of the vehicle body; the 3D model reconstruction submodule is used to reconstruct the tower crane equipment model according to the real-time working condition data of the vehicle obtained by the vehicle equipment end, complete the reorganization and assembly of the tower crane equipment model, and obtain the tower crane 3D twin model; and, based on the real-time working condition data sent by the vehicle equipment end, drive the tower crane 3D twin model to move in real time to achieve movements such as movement, amplitude change, rotation, and lifting.

[0152] The strength calculation module calculates the total load on the upper part of the tower body through the vehicle operating condition information sent in real time by the vehicle equipment end, including the hoisting weight, upper tipping bending moment, wind bending moment and other information; based on the tower body calculation data, tower body structure data and real-time operating conditions, the real-time load and stress borne by each standard section under the current operating conditions are calculated.

[0153] The label marking and recording module includes a label marking submodule and a label database. The label marking submodule is used to establish a matching relationship between the standard section label of the physical tower body and the standard section of the tower crane 3D twin model, and identify the position of the standard section in the tower crane 3D twin model corresponding to each label; the label database is used to record and store the stress data of the standard section corresponding to each label.

[0154] The assembly recommendation module is based on the historical load data in the tower body label database and the user-set weights, calculates the historical evaluation index of each standard section, and recommends the optimal standard section assembly sequence.

[0155] The above functional modules are completely decoupled and work independently, and a single error will not affect each other.

[0156] The client is the display device, including model-driven display, historical data display and assembly recommendation display.

[0157] Model-driven display is used to drive the real-time movement of the tower crane 3D twin model based on real-time operating condition data and to display the actions of the tower crane 3D twin model in real time.

[0158] The historical data display is used to show the number of times each standard section of the tower has been used and the load it has borne during the historical period.

[0159] The assembly recommendation display is used to set weights based on the user's concerns and display the optimal standard section assembly sequence.

[0160] The specific implementation process of the assembly recommendation module is as follows:

[0161] Call the tag database in the server to obtain the number of stress calculations and the corresponding stress values ​​of each standard section during use, and calculate the usage time of each standard section and the maximum stress of the standard node M n ;

[0162] Used time and the maximum stress of the standard node M n Perform normalization processing;

[0163] Set the elapsed time and the maximum stress of the standard node M n Weight, such as setting the usage time The weight is Q1, the single limit stress of the standard section is M n The weight is Q2;

[0164] Calculate the standard section historical assessment index: ,

[0165] Historical Assessment Index The smaller it is, the safer the standard section is considered;

[0166] When the tower is reassembled, it is recommended to follow the standard section history assessment index Assemble them in order from small to large from bottom to top on the tower body.

[0167] It should be noted that the implementation methods of the above method embodiments are all applicable to the twin monitoring system embodiments and can achieve the same or similar technical effects, so they will not be repeated here.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A tower body standard section assembly optimization method, characterized in that: include: A tower body label database is established based on the factory labels of the tower body standard sections to store the stress data of each standard section during use; After the tower body is assembled, the factory labels of the tower body standard sections are scanned to identify the label numbers corresponding to the standard sections at different positions, and the tower body assembly sequence is obtained; During the use of the tower body, the stress of the standard nodes at different positions is calculated in real time, and the stress value of the standard node is stored in the standard node corresponding to the tower body tag database based on the tower body assembly sequence; Before the next use of the tower body, the historical evaluation index of each standard section is calculated based on the historical stress and usage time of each standard section of the tower body, and the optimal standard section assembly sequence is recommended.

2. The tower body standard section assembly optimization method according to claim 1 is characterized in that: The method further comprises: Each time the tower body standard section changes, the tower body standard section factory label is rescanned to obtain the tower body assembly sequence, and the calculated standard section stress value is stored in the standard section corresponding to the tower body label database based on the latest tower body assembly sequence.

3. The tower body standard section assembly optimization method according to claim 1 is characterized in that: The tower body label database stores data using the original label number of each standard section as one page, with the first column of each page being the number of calculations and the second column being the standard section stress.

4. A tower body standard section assembly optimization method according to claim 3, characterized in that: The storage method of the standard node stress in the tower body label database is: Initially, the default number of calculations for each row is C ni =1, when calculating for the first time, the stress calculation result is stored in the first row and second column as M ni ; During the next calculation, the current stress calculation result is compared with the latest stored stress result to calculate: ， If the calculated value is less than 2%, no separate row is recorded, and only the calculation times of the row where the latest stress storage result is located are added by 1, and the stress storage value remains unchanged; Otherwise, record in the next line the number of calculations and the result of this stress calculation, and so on; Where n represents the original label number of the standard section, i represents the i-th row, C ni Indicates the number of calculations for the i-th row of standard section n, M ni Represents the stress data stored in the i-th row of standard node n.

5. A tower body standard section assembly optimization method according to claim 4, characterized in that: Based on the historical stress and service time of each standard section of the tower body, the historical evaluation index of each standard section is calculated, and the optimal standard section assembly sequence is recommended, including: The number of stress calculations and the corresponding stress values ​​of a single standard section during use are obtained from the tower body tag database to calculate the use time of the standard section. and the maximum stress of the standard node M n ; The length of time used and the maximum stress of the standard node M n Perform normalization processing; Set the elapsed time and the maximum stress of the standard node M n Weight; Calculate the standard section historical assessment index: , in, represents the historical evaluation index of standard section n, and are the weights of the used time and the maximum stress of the standard section, and are the normalized values ​​of the used time and the maximum stress of the standard section respectively; It is recommended to assemble the standard sections from bottom to top of the tower in ascending order according to the historical evaluation index of the standard sections.

6. A twin monitoring system for tower standard section assembly, characterized in that: Used to implement the tower body standard section assembly optimization method according to any one of claims 1 to 5, the system comprises: a vehicle equipment end, a server and a client end, The vehicle equipment end is used to send tower body related data to the server, wherein the tower body related data includes tower body label combination information and vehicle real-time working condition data; The server comprises: The model library and reconstruction module is used to build a 3D twin model of the tower crane and drive the real-time movement of the 3D twin model of the tower crane based on the real-time working condition data sent by the vehicle equipment end to realize the tower crane movement; Strength calculation module, used to calculate the total load on the upper part of the tower in real time, as well as the real-time load and stress borne by each standard section under the current working conditions; The label marking and recording module is used to establish the corresponding relationship between the tower body standard section label and the standard section in the tower crane 3D twin model, and store the standard section stress data; The assembly recommendation module is used to calculate the historical evaluation index of each standard section based on the historical load data in the tower body label database and the set weight, and recommend the optimal standard section assembly sequence; The client is used to display the actions of the 3D twin model of the tower crane and the historical information of each standard section of the tower body, and to set weights based on the user's concerns, and to display the optimal standard section assembly sequence under the weights.

7. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The tower body label combination information is the tower body assembly sequence during the use of the tower crane. The tower body assembly sequence means that after the tower body is assembled, the factory labels of the tower body standard sections are scanned to identify the label numbers corresponding to the standard sections at different positions to obtain the tower body assembly sequence; The real-time working condition data of the vehicle include lifting load, boom length, boom amplitude, rotation angle and wind speed data.

8. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The model library and reconstruction module include: Tower crane equipment model library, including 3D visualized tower crane equipment models of different tonnages. A single equipment model consists of motion mechanism parts and a 3D model of the body. The 3D model reconstruction submodule is used to reconstruct the tower crane equipment model according to the real-time operating condition data of the vehicle sent by the vehicle equipment end, complete the reorganization and assembly of the tower crane equipment model, and obtain the 3D twin model of the tower crane; and drive the real-time movement of the 3D twin model of the tower crane based on the real-time operating condition data sent by the vehicle equipment end.

9. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The intensity calculation module is specifically used for: Calculate the total load on the upper part of the tower body based on the real-time vehicle working condition data sent by the vehicle equipment end, including the hoisting weight, upper tipping bending moment and wind bending moment; Based on the tower body calculation data, tower body structure data and real-time working condition data, the real-time load and stress borne by each standard section under the current working condition are calculated.

10. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The label marking and recording module includes: The label marking submodule is used to establish a matching relationship between the label of the physical tower body standard section and the standard section of the tower crane 3D twin model, and identify the position of the standard section in the tower crane 3D twin model corresponding to each label; The label database is used to record and store the stress calculation times and stress data corresponding to each standard section label.

11. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The assembly recommendation module is specifically used to: Call the server's tag database to obtain the number of stress calculations and the corresponding stress values ​​during the use of a single standard section, and calculate the length of time the standard section has been used and the maximum stress M of the standard node n ; The length of time used and the maximum stress of the standard node M n Perform normalization processing; Set the elapsed time and the maximum stress of the standard node M n Weight; Calculate the standard section historical assessment index: , in, represents the historical evaluation index of standard section n, and are the weights of the used time and the maximum stress of the standard section, and are the normalized values ​​of the used time and the maximum stress of the standard section respectively; It is recommended to assemble the standard sections from bottom to top of the tower in ascending order according to the historical evaluation index of the standard sections.

12. A tower body standard section assembly twin monitoring system according to claim 11, characterized in that: The elapsed time of the standard section The calculation method is: In the label database, all stress calculation times of a single standard section in use are accumulated and multiplied by the single data transmission time during stress calculation to obtain the usage time of the standard section; The maximum stress of the standard section is M n The calculation method is: take the maximum value of all stress storage data of a single standard section in the label database during use as the maximum stress of the standard section.

13. A tower body standard section assembly twin monitoring system according to claim 6, characterized in that: The client comprises: Model-driven display, used to display the actions of the tower crane 3D twin model in real time; Historical data display is used to show the usage times and load bearing data of each standard section of the tower body in the historical time period; The assembly recommendation display is used to set weights based on the user's concerns and display the optimal standard section assembly sequence under the weights.

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