High-efficiency and high-precision cable net lifting control system and its application in annular cable-supported grid structure

Abstract

The present invention relates to the field of building construction technology, and specifically discloses an efficient and high-precision cable net lifting control system and application of an annular cable-supported grid structure, comprising: a radial cable and annular cable collaborative lifting module; a prestressing application and cable net shape control module; an annular cable detection module: obtaining a real-time 3D tensioning model of the annular cable, and comparing and analyzing it with a preset real-time 3D preset model, evaluating the tensioning process state, and generating a tensioning early warning signal based on the evaluation result; a tensioning speed adjustment module: analyzing the completed tensioning process, evaluating whether it is caused by the tensioning speed, and adjusting the tensioning speed based on the evaluation result; the present invention calculates and adjusts the radial cable prestressing tensioning speed and the tooling lower cable lower tensioning speed in the subsequent tensioning process through a relational model, ensuring that the cable net tensioning process is stable and accurate, and further improving the reliability and accuracy of the annular cable-supported grid structure cable net lifting construction.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a high-efficiency and high-precision cable net lifting control system and application of an annular cable-supported grid structure. Background Art

[0002] In modern construction projects, annular cable-supported grid structures are widely used in large-span spatial structures, such as roof structures of stadiums, exhibition halls, etc., due to their unique mechanical properties and architectural aesthetic effects.

[0003] However, during the construction of the annular cable-supported grid structure, the lifting of the cable net is an extremely challenging task. There are many problems with the traditional cable net lifting method. For example, it is difficult to lift the radial cables and annular cables in coordination, and it is difficult to ensure that the cable net reaches a specific shape and position according to the design requirements during the lifting process; the unreasonable force on the cable net can easily lead to local stress concentration, affecting the safety and stability of the structure; the shape of the cable net does not meet the design requirements, and a large number of adjustments and corrections are required in the subsequent process, which increases the construction cost and construction period. In addition, during the tensioning process of the cable net, there is a lack of effective real-time monitoring and control means, and it is impossible to promptly detect and solve the deviation problems that occur during the tensioning process, further affecting the construction quality and efficiency; therefore, it is of great practical significance to develop an efficient and high-precision cable net lifting control system that can achieve the coordinated lifting of radial cables and annular cables, accurately control the application of prestress and the shape of the cable net, and can monitor and adjust the tensioning process in real time. Summary of the invention

[0004] The object of the present invention is to provide an annular cable-supported grid structure with a high efficiency and high precision cable net lifting control system and application, so as to solve at least one of the above-mentioned prior art problems.

[0005] In a first aspect, the present invention provides an annular cable-supported grid structure with high efficiency and high precision cable net lifting control system, comprising:

[0006] Radial cable and annular cable coordinated lifting module: before applying prestress to the annular cable, the cable net position is proportionally adjusted by the length of the radial cable;

[0007] Prestressing and cable net shape control module: During the stretching process of the radial cable, the cable is stretched continuously until the annular cable and the radial cable are prestressed;

[0008] Preset tension sequence, after the lower cable of the tooling is installed, based on the tension sequence, the radial cable prestress F Ri And the lower cable tension F Li Apply in equal proportions step by step;

[0009] Hoop cable detection module: obtain the real-time 3D tension model of the hoop cable, and compare and analyze it with the preset real-time 3D preset model, identify the real-time deviation area and obtain the real-time deviation degree value, evaluate the tension process status according to the real-time deviation degree value, and generate a tension warning signal based on the evaluation result;

[0010] Tensioning speed adjustment module: Based on the tensioning early warning signal, the completed tensioning process is analyzed to evaluate whether it is caused by the tensioning speed, and the tensioning speed is adjusted based on the evaluation results.

[0011] In a second aspect, the present invention provides an application of a high-efficiency and high-precision cable net lifting control system for an annular cable-supported grid structure, wherein the high-efficiency and high-precision cable net lifting control system for an annular cable-supported grid structure is applied to the support-free construction of an annular cable-supported grid structure.

[0012] Beneficial effects of the present invention:

[0013] (1) The present invention adopts a method of step-by-step refined proportional tensioning to achieve the coordinated lifting of radial cables and annular cables and the precise control of prestressing and cable net shape control, effectively solving the problems of the difficulty of coordinated lifting, unreasonable cable net force, and shape not meeting the design requirements during the lifting process of the annular cable-supported grid structure cable net;

[0014] (2) The present invention adds a hoop cable detection module and a tensioning speed adjustment module; the hoop cable detection module uses a comparative analysis between a real-time 3D tensioning model and a preset model to monitor the tensioning state of the hoop cable in real time, promptly identify the deviation area and evaluate the degree of deviation, thereby generating a corresponding warning signal to ensure that the overall deviation of the cable network is within a controllable range; the tensioning speed adjustment module, based on the tensioning warning signal generated by the hoop cable detection module, deeply analyzes the completed tensioning process, and uses a multivariate linear regression model to evaluate the influence of the tensioning speed on the cable network deviation; if it is determined that the tensioning speed is the main cause of the deviation exceeding the threshold, the radial cable prestressing tensioning speed and the tooling lower cable tensioning speed in the subsequent tensioning process are calculated and adjusted through the relationship model to ensure that the cable network tensioning process is stable and accurate, further improve the reliability and accuracy of the cable network lifting construction of the annular cable-supported grid structure, and provide a more complete and reliable technical support for the construction of the annular cable-supported grid structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1It is a flow chart of the high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure provided by the present invention;

[0017] Figure 2 It is a structural schematic diagram of a high-efficiency and high-precision cable net lifting control system of an annular cable support grid structure provided by the present invention;

[0018] Figure 3 It is a structural schematic diagram of a high-efficiency and high-precision cable net lifting control device of an annular cable-supported grid structure provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] Embodiment 1

[0021] Figure 1 The flowchart of the high-efficiency and high-precision cable net lifting control system of the annular cable-bearing grid structure provided in the first embodiment of the present invention, the embodiment of the present invention can be applied to the case of high-efficiency and high-precision cable net lifting control of the annular cable-bearing grid structure, the high-efficiency and high-precision cable net lifting control system of the annular cable-bearing grid structure can be executed by the high-efficiency and high-precision cable net lifting control application of the annular cable-bearing grid structure, the high-efficiency and high-precision cable net lifting control application of the annular cable-bearing grid structure can be implemented by software and / or hardware, and the high-efficiency and high-precision cable net lifting control application of the annular cable-bearing grid structure can be configured in the high-efficiency and high-precision cable net lifting control device of the annular cable-bearing grid structure. Optionally, the high-efficiency and high-precision cable net lifting control device of the annular cable-bearing grid structure can be an electronic device, and the electronic device can be a notebook, a desktop computer, a smart tablet, etc., which is not limited by the embodiment of the present invention.

[0022] The embodiment of the present invention provides a high-efficiency and high-precision cable net lifting control system with an annular cable support grid structure, comprising:

[0023] Radial cable and annular cable coordinated lifting module: before the annular cable is prestressed, the cable net position is proportionally adjusted by the length of the radial cable;

[0024] It should be explained that in the annular cable-supported grid structure, radial cables refer to cables radiating outward from a central point or a fixed point. The main function of radial cables is to support and position the cable net to ensure that the cable net can reach a specific shape and position according to design requirements; circumferential cables refer to cables extending around a central point or a fixed path. The main function of circumferential cables is to provide circumferential tension and stability, working in conjunction with radial cables to support the entire structure; in the annular cable-supported grid structure, circumferential cables intersect with radial cables and together form a stable cable net structure;

[0025] In some embodiments, the length of each radial cable when no prestress is applied is extracted and marked as Li;

[0026] It should be explained that the radial cable is in its initial state when no prestress is applied, i.e., the position of the cable net in its natural state;

[0027] Preset an adjustment sequence, and adjust the position of the cable net based on the adjustment sequence;

[0028] Exemplarily, the adjustment sequence is 1.256Li→1.128Li→1.064Li→1.032Li→1.016Li→1.008Li→1.004Li→1.002Li→1.001Li→1.000Li;

[0029] It should be explained that the characteristic of the adjustment sequence is that as the number decreases, the length change of each step also gradually decreases, forming a process of gradually approaching the final length (1.000Li, i.e. the original Li length, but at this time the cable net is already in a prestressed state), ensuring the balance of tension and avoiding the problem of structural instability or uneven prestress distribution caused by sudden and large adjustments;

[0030] Prestressing and cable net shape control module: During the stretching process of the radial cable, the cable is stretched continuously until the annular cable and the radial cable are prestressed, and a signal for installing the tooling cable is generated, prompting the construction team to install the tooling cable at the connection node of the annular cable and the radial cable. The function of the tooling cable is to provide an additional downward pulling force during the prestressing process to help the cable net achieve a more accurate design position and shape;

[0031] Preset tension sequence, after the lower cable of the tooling is installed, based on the tension sequence, the radial cable prestress F Ri And the lower cable tension F Li Apply the cable net in equal proportions step by step to achieve the fine installation and lifting of the cable net;

[0032] For example, the tension sequence is: 0.744F Ri and 0.744F Li →0.872FRi and 0.872F Li →0.936F Ri and 0.936F Li →0.968F Ri and 0.968F Li →0.984F Ri and 0.984F Li →0.992F Ri and 0.992F Li →0.996F Ri and 0.996F Li →0.998F Ri and 0.998F Li →0.999F Ri and 0.999F Li →1.000F Ri and 1.000F Li ;

[0033] It should be explained that, similar to the adjustment sequence in the initial adjustment module, the tension sequence is characterized by the fact that as the number increases, the tension growth amount of each step gradually decreases, forming a sequence that gradually approaches the final tension (1.000F). Ri and 1.000F Li , that is, the prestress value required by the design) process ensures the balance of prestress application and avoids the situation where the cable net is subjected to unreasonable force or the shape does not meet the design requirements due to sudden and large changes in tension;

[0034] The technical solution of the embodiment of the present invention is mainly as follows: by adopting a step-by-step refined proportional tensioning method, the coordinated lifting of radial cables and annular cables and the precise control of prestressing and cable net shape control are achieved, which effectively solves the problems of the difficulty of coordinated lifting, unreasonable cable net force, and shape not meeting the design requirements during the lifting of the cable net of the annular cable-supported grid structure, thereby providing reliable technical support for the construction of the annular cable-supported grid structure.

[0035] Embodiment 2

[0036] Based on Example 1, please refer to Figure 1 , Figure 2 As shown, the annular cable support grid structure high-efficiency and high-precision cable net lifting control system according to the embodiment of the present invention also includes:

[0037] Annular cable detection module: used to detect the Annular cable in real time, obtain the real-time 3D tensioning model of the Annular cable, and compare and analyze it with the preset real-time 3D preset model, identify the real-time deviation area and obtain the real-time deviation degree value, evaluate the tensioning process status according to the real-time deviation degree value, and generate a tensioning warning signal based on the evaluation result;

[0038] In some embodiments, before starting the tensioning process, a real-time 3D preset model of the circumferential cable is created using computer modeling software (such as AutoCAD, Revit, CATIA) according to design requirements;

[0039] It should be explained that the real-time 3D preset model includes: the real-time diameter, length, and position of the annular cable; the real-time 3D preset model represents the shape and position of the cable net in an ideal state;

[0040] During the tensioning process, the spatial position and shape of the circumferential cable are captured in real time using measuring equipment (such as laser scanners, 3D measurement cameras, and total stations), and input into the modeling software to generate a real-time 3D tensioning model, which reflects the actual situation of the current cable network.

[0041] Compare and analyze the real-time 3D preset model and the real-time 3D tension model, identify the areas where the two do not completely overlap in spatial position, mark them as real-time deviation areas, and extract the volume of each real-time deviation area to obtain the real-time deviation sub-degree value;

[0042] Preset a real-time deviation degree threshold, and compare and analyze the real-time deviation sub-degree value with the real-time deviation degree threshold;

[0043] If the real-time deviation sub-degree value is less than or equal to the real-time deviation degree threshold, it means that the real-time deviation area corresponding to the real-time deviation sub-degree value has a small deviation;

[0044] If the real-time deviation sub-degree value is greater than the real-time deviation degree threshold, it means that the real-time deviation area corresponding to the real-time deviation sub-degree value has a large deviation, and a large area deviation signal is generated, and the real-time deviation area is marked as a large real-time deviation area;

[0045] Extract the real-time deviation sub-degree values ​​of all the real-time deviation large areas, and sum them up to obtain the real-time deviation degree value;

[0046] Preset a real-time deviation degree threshold, and compare and analyze the real-time deviation degree value with the real-time deviation degree threshold;

[0047] If the real-time deviation value is less than or equal to the real-time deviation threshold, it means that although there are large deviations in individual areas, the overall deviation of the cable net structure is still within an acceptable range, and the tensioning process is evaluated to be stable and can continue, that is, a tensioning continuation signal is generated;

[0048] If the real-time deviation value is greater than the real-time deviation threshold, it means that the overall deviation of the cable net structure exceeds the acceptable range, and the tensioning process is evaluated as unstable, that is, a tensioning warning signal is generated;

[0049] Tensioning speed adjustment module: Based on the tensioning warning signal, the completed tensioning process is analyzed to evaluate whether it is caused by the tensioning speed, and the tensioning speed is adjusted based on the evaluation results;

[0050] In some embodiments, based on the tension warning signal, the time taken for each level of tension to be applied in the completed tensioning process is extracted to obtain the tensioning time t i , where i is 1, 2, ..., n, and n is the number of completed tensioning series; for example, the tension sequence mentioned in Example 1: 0.744F Ri and 0.744F Li →0.872F Ri and 0.872F Li →0.936F Ri and 0.936F Li →0.968F Ri and 0.968F Li →0.984F Ri and 0.984F Li →0.992F Ri and 0.992F Li →0.996F Ri and 0.996F Li →0.998F Ri and 0.998F Li →0.999F Ri and 0.999F Li →1.000F Ri and 1.000F Li , the tensioning time corresponding to each level needs to be accurately recorded;

[0051] The radial cable prestress applied at each stage is marked as , the pull force of the tooling cable applied at each level is marked as ;

[0052] By formula: , calculate and obtain the tensioning speed of radial cable prestressing at each level ;

[0053] By formula: , calculate and obtain the tensioning speed of the lower cable under the tooling at each level ;

[0054] in, and They are respectively the radial cable prestress of the next level and the down-tension force of the tooling down-cable;

[0055] In order to evaluate whether the tensioning speed is the reason why the cable net deviation exceeds the threshold, the relationship model between the cable net deformation and the tensioning speed is established using the multivariate linear regression model: , where D is the real-time deviation value, is a constant term, and is the regression coefficient;

[0056] By formula: , calculate the contribution of radial cable prestressing velocity ;

[0057] By formula: , calculate the contribution of the tensioning speed of the lower cable under the tooling ;

[0058] By formula: , calculate and obtain the total contribution C;

[0059] It should be explained that the contribution degree represents the contribution degree of each tensioning speed to the real-time deviation value of the cable net, and the total contribution degree is the sum of the contributions of all tensioning speeds;

[0060] Preset the total contribution threshold, and compare and analyze the total contribution with the total contribution threshold;

[0061] If the total contribution is less than or equal to the total contribution threshold, it means that the tensioning speed is not the main reason for the cable net deviation exceeding the threshold;

[0062] If the total contribution is greater than the total contribution threshold, it means that the tensioning speed is the main reason for the cable net deviation exceeding the threshold, that is, the tensioning speed-related signal is generated;

[0063] Based on the generated tensioning speed related signal, the target real-time deviation value D is preset in the subsequent tensioning process. target ;

[0064] The target real-time deviation value in the subsequent tensioning process is D target Substitute it into the relational model and solve the equations to obtain the adjusted radial cable prestressing speed: And the tension speed of the lower cable of the tooling ;

[0065] For example, the adjustment of the j-th tensioning speed can be performed by the formula: Solution;

[0066] The technical solution of the embodiment of the present invention is mainly as follows: adding a circumferential cable detection module and a tensioning speed adjustment module; the circumferential cable detection module uses a comparative analysis of the real-time 3D tensioning model and the preset model to monitor the tensioning state of the circumferential cable in real time, timely identify the deviation area and evaluate the degree of deviation, thereby generating a corresponding warning signal to ensure that the overall deviation of the cable network is within a controllable range; the tensioning speed adjustment module is based on the tensioning warning signal generated by the circumferential cable detection module, deeply analyzes the completed tensioning process, and uses a multivariate linear regression model to evaluate the influence of the tensioning speed on the cable network deviation; if it is determined that the tensioning speed is the main cause of the deviation exceeding the threshold, the radial cable prestressing tensioning speed and the tooling lower cable tensioning speed in the subsequent tensioning process are calculated and adjusted through the relationship model to ensure that the cable network tensioning process is stable and accurate, further improve the reliability and accuracy of the cable network lifting construction of the annular cable-supported grid structure, and comprehensively solve a series of problems such as the difficulty of coordinated lifting, unreasonable force on the cable network, and the shape not meeting the design requirements during the cable network lifting process, so as to provide more complete and reliable technical support for the construction of the annular cable-supported grid structure.

[0067] Embodiment 3

[0068] Reference Figure 3 The embodiment of the present invention further provides a computer device 3, comprising: a memory 302 and a processor 301 and a computer program 303 stored in the memory 302. When the computer program 303 is executed on the processor 301, an efficient and high-precision cable net lifting control system for an annular cable-supported grid structure as described in any one of the above methods is implemented.

[0069] The computer device 3 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The computer device 3 may include, but is not limited to, a processor 301 and a memory 302. Those skilled in the art will appreciate that Figure 3 It is only an example of computer device 3 and does not constitute a limitation on computer device 3. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components, for example, it may also include input and output devices, network access devices, etc.

[0070] The processor 301 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0071] In some embodiments, the memory 302 may be an internal storage unit of the computer device 3, such as a hard disk or memory of the computer device 3. In other embodiments, the memory 302 may also be an external storage device of the computer device 3, such as a plug-in hard disk, a smart memory card (SmartMediaCard, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the computer device 3. Further, the memory 302 may also include both an internal storage unit of the computer device 3 and an external storage device. The memory 302 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 302 may also be used to temporarily store data that has been output or is to be output.

[0072] Embodiment 4

[0073] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the high-efficiency and high-precision cable net lifting control system of the annular cable-supported grid structure as described in any one of the above methods is implemented.

[0074] Embodiment 5

[0075] An embodiment of the present invention also provides an application of a high-efficiency and high-precision cable net lifting control system for an annular cable-supported grid structure, and the high-efficiency and high-precision cable net lifting control system for an annular cable-supported grid structure is applied to the support-free construction of an annular cable-supported grid structure.

[0076] In this embodiment, if the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, USB flash drive, mobile hard disk, disk or optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0077] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0079] In the embodiments disclosed in the present application, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0080] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0081] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0082] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. The annular cable support grid structure has high efficiency and high precision cable net lifting control system, which is characterized by: include: Radial cable and annular cable coordinated lifting module: before applying prestress to the annular cable, the cable net position is proportionally adjusted by the length of the radial cable; Prestressing and cable net shape control module: During the radial cable stretching process, the stretching is continued until the annular cables and radial cables are prestressed; Preset tension sequence, after the lower cable of the tooling is installed, based on the tension sequence, the radial cable prestress F Ri And the lower cable tension F Li Apply in equal proportions step by step; Hoop cable detection module: obtain the real-time 3D tension model of the hoop cable, and compare and analyze it with the preset real-time 3D preset model, identify the real-time deviation area and obtain the real-time deviation degree value, evaluate the tension process status according to the real-time deviation degree value, and generate a tension warning signal based on the evaluation result; Tensioning speed adjustment module: Based on the tensioning warning signal, the completed tensioning process is analyzed to evaluate whether it is caused by the tensioning speed, and the tensioning speed is adjusted based on the evaluation results. The specific process is as follows: Based on the tension warning signal, the time spent on applying each level of tension in the completed tension process is extracted to obtain the tension time t i , where i is 1, 2, ..., n, n is the number of completed tensioning stages, and the tensioning speed of the radial cable prestressing for each stage is calculated. And the tensioning speed of the lower cable of the tooling at all levels ; Establish the relationship model between cable net deformation and tensioning speed: , where D is the real-time deviation value, is a constant term, and is the regression coefficient; By formula: , calculate the contribution of radial cable prestressing velocity ; By formula: , calculate the contribution of the tensioning speed of the lower cable under the tooling ; The contribution of all radial cable prestressing speeds and the contribution of the tensioning speed of the lower cable under the tooling Perform sum calculation and output the total contribution C; If the total contribution is greater than the total contribution threshold, a tension velocity-related signal is generated; Based on the generated tensioning speed related signal, the target real-time deviation value D is preset in the subsequent tensioning process. target ; The target real-time deviation value in the subsequent tensioning process is D target Substitute it into the relational model and solve the equations to obtain the adjusted radial cable prestressing speed: And the tension speed of the lower cable of the tooling .

2. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 1 is characterized in that: The process of obtaining the real-time 3D tensioning model of the hoop cable and comparing it with the preset real-time 3D preset model, identifying the real-time deviation area and obtaining the real-time deviation degree value, evaluating the tensioning process state according to the real-time deviation degree value, and generating the tensioning warning signal based on the evaluation result is as follows: Create real-time 3D preset models of circumferential cables; During the tensioning process, the spatial position and shape of the annular cable are captured in real time to generate a real-time 3D tensioning model; Based on the real-time 3D preset model and the real-time 3D tension model, the real-time deviation area is obtained, and the volume of each real-time deviation area is extracted to obtain the real-time deviation sub-degree value; Based on the real-time deviation sub-degree value, the deviation degree of the real-time deviation area is compared and analyzed, and a regional large deviation signal is generated based on the analysis result, and the real-time deviation area is marked as a real-time large deviation area; Based on the real-time deviation sub-degree values ​​of all real-time large deviation areas, output the real-time deviation degree value; Based on the real-time deviation degree value, the overall deviation of the cable net structure is evaluated, and a tension warning signal is generated based on the evaluation result.

3. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 2 is characterized in that: The process of obtaining the real-time deviation area is as follows: The real-time 3D preset model is compared with the real-time 3D tension model for overlap analysis, and the areas where the two do not completely overlap in spatial position are identified and marked as real-time deviation areas.

4. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 3 is characterized in that: The process of comparing and analyzing the deviation degree of the real-time deviation area, generating a regional large deviation signal based on the analysis result, and marking the real-time deviation area as a real-time large deviation area is as follows: If the real-time deviation sub-degree value is greater than the real-time deviation degree threshold, a regional large deviation signal is generated, and the corresponding real-time deviation region is marked as a real-time large deviation region.

5. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 4 is characterized in that: The process of obtaining the real-time deviation value is as follows: The real-time deviation sub-degree values ​​of all the real-time deviation large areas are extracted and summed up to obtain the real-time deviation degree value.

6. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 5 is characterized in that: Based on the real-time deviation degree value, the overall deviation of the cable net structure is evaluated, and the process of generating a tension warning signal based on the evaluation result is as follows: If the real-time deviation degree value is greater than the real-time deviation degree threshold, a tension warning signal is generated.

7. The high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to claim 1 is characterized in that: Calculate the tensioning speed of radial cable prestressing at each level And the tensioning speed of the lower cable of the tooling at all levels The process is: The radial cable prestress applied at each stage is marked as , the pull force of the tooling cable applied at each level is marked as ; By formula: , calculate and obtain the tensioning speed of radial cable prestressing at each level ; By formula: , calculate and obtain the tensioning speed of the lower cable under the tooling at each level ; in, and They are respectively the radial cable prestress of the next level and the downward tension of the tooling lower cable.

8. Application of the high-efficiency and high-precision cable net lifting control system of the annular cable support grid structure according to any one of claims 1 to 7, characterized in that: The high-efficiency and high-precision cable net lifting control system of the annular cable-supported grid structure is applied to the support-free construction of the annular cable-supported grid structure.

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