A method and system for synchronously controlling multiple cables of inclined-stayed buckles based on hydraulic coordination

Abstract

The present invention discloses a method and system for synchronous control of multiple cables of an inclined-stayed buckle based on hydraulic coordination, the method comprising: obtaining cable information of each cable, configuring a hydraulic device for each cable, grading the tensioning operation of the hydraulic device into multiple tensioning levels, allocating a sub-target tensioning force for each tensioning level, controlling the hydraulic device to tension each cable starting from the first tensioning level according to the cable number and in combination with the initial tensioning force of the cable, until the sub-target tensioning force corresponding to the current tensioning level is reached, and then entering the next tensioning level, wherein the current tensioning force of each cable is monitored in real time, a pressure difference approach variable is compared with a pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result; multiple tension approach graphs are generated according to the current tensioning force of each cable monitored in real time, and cables with tension jumps are found according to the node conditions in the tension approach graphs, and an alarm message is issued.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge cable control, and more specifically, relates to a method and system for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination. Background Art

[0002] Cable-stayed bridges, the core structural form of modern long-span bridges, efficiently transfer main girder loads to the towers through fan-shaped cables. They offer significant advantages, including high structural stiffness, excellent seismic performance, and robust construction adaptability. Over 65% of bridges have spans over 200 meters, and the precision of cable tension control directly determines structural safety and service life. The traditional single-cable discrete tensioning model is no longer able to meet the efficiency and precision requirements of large-scale bridge construction. The development of multi-cable collaborative intelligent control technology has significant engineering value in promoting the industrialized construction of bridge projects.

[0003] The current industry-wide practice of batch tensioning, with individual cables adjusted manually using hydraulic jacks, is widespread. The typical process involves three stages: initial tensioning: pre-tensioning individual cables to 20% of the design value to eliminate saddle gaps; staged tensioning: loading cables at 60% and 85% of the design value, with each stage requiring a two-hour pause to observe cable tension decay; and compensatory tensioning: using spectral analysis to measure cable tension in the completed bridge, followed by secondary tensioning. The measured discrete error is ±2% (overall cable tension deviation ±1%). While some projects have attempted symmetrical, synchronized tensioning, the actual synchronization accuracy is less than 80% due to a lack of coordinated hydraulic system control.

[0004] However, the existing technology still faces the following technical difficulties: (1) Precision loss: Single cable tensioning causes cable force redistribution effect, and the maximum deviation of cable force in the completed bridge exceeds 10% (monitoring data of a cross-sea bridge); independent control of the hydraulic system leads to response delay > 200ms, and pressure fluctuation amplitude under sudden load is ≥ 15%; (2) Efficiency bottleneck: A single cable-stayed bridge (such as 36 pairs of cables) needs to undergo 3 rounds of cable adjustment, which takes a total of 15-30 days and interrupts the continuous pouring of main beam concrete; (3) Lack of intelligence: There is no real-time closed-loop feedback of cable force-displacement-oil pressure, and it relies on experience threshold classification; there is a lack of digital simulation rehearsal capability, and it is impossible to predict the changes in tower deviation / support reaction force; health monitoring relies on offline detection, and the online diagnosis coverage rate is less than 30%. Summary of the Invention

[0005] To solve the above technical problems, the present invention proposes a method and system for synchronous control of multiple cables of cable-stayed buckles based on hydraulic coordination, which decouples the overall tensioning process into multi-level sub-goals and executes them in a serial manner according to the cable number and initial cable force; secondly, the pressure difference approach variable of each cable is calculated in real time, and when the rate of change exceeds the threshold, the hydraulic device is triggered to dynamically fine-tune; at the same time, based on the topological structure of the tension approach graph, the cable force jump nodes are identified, the gradient mutation is greater than 5%, and an early warning is issued, which can perform precise hydraulic coordinated control of the cables of the cable bridge, greatly improving the working efficiency.

[0006] To achieve the above objectives, according to a first aspect of the present invention, a method for synchronously controlling multiple cables of a cable-stayed hook based on hydraulic coordination is provided, comprising:

[0007] Acquire cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number and initial tension of the cable;

[0008] The tensioning operation of the hydraulic device is graded and divided into multiple tensioning levels. A sub-target tensioning force is assigned to each tensioning level. The hydraulic device is controlled to tension each cable starting from the first tensioning level according to the cable number and the initial tensioning force of the cable until the sub-target tensioning force corresponding to the current tensioning level is reached and the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result.

[0009] Based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated. According to the node conditions in the tension proximity graphs, cables with sudden tension jumps are found and alarm information is issued.

[0010] Furthermore, the pressure difference approximation variables for each cable are calculated as follows:

[0011] ,

[0012] in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable;

[0013] Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including:

[0014] when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold.

[0015] Furthermore, based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated, including: at the current time point, if the difference in the tension of the two cables is less than a preset difference threshold, the two cables are considered to be in a tension proximity state, and the two cables are abstracted as nodes and connected with connecting edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded.

[0016] Furthermore, based on the node conditions in the tension proximity graph, searching for the cable where the tension jump occurs includes: obtaining all the tension proximity graphs once every time period, and when the number of all the tension proximity graphs increases or decreases by more than the allowed number threshold, the cable corresponding to the increased tension proximity graph or the cable corresponding to the decreased tension proximity graph is used as the cable where the tension jump occurs.

[0017] Furthermore, the method further includes: mapping the cable number of each cable and the corresponding current tension force into two-dimensional points to form a "cable number-current tension force" scatter point set, wherein the cable number of each cable is used as the horizontal coordinate and the current tension force of each cable is used as the vertical coordinate;

[0018] Based on the “cable number-current tension” scatter point set, a density distribution heat map of the current tension under different cable numbers is generated through two-dimensional kernel density estimation;

[0019] Within the time period for completing each of the tensioning levels, multiple continuous sampling intervals are set, and all density distribution heat maps within all sampling intervals are obtained, and all density distribution heat maps are stacked according to the sampling intervals to generate a three-dimensional tension density field, wherein the cable number of each cable is used as the horizontal coordinate, the current tensioning force of each cable is used as the vertical coordinate, and the sampling interval is the depth axis.

[0020] Furthermore, the density variance and skewness of the density distribution heat map corresponding to each sampling interval are calculated;

[0021] When the density variance is less than the preset variance threshold, the tension of the cable group is consistent and the coordination is normal. Otherwise, there is a deviation in the tension of the cable group. The cable with abnormal tension is found and fine-tuned.

[0022] When the deflection is approximately equal to 0, the tension distribution of the cable group is symmetrical on the left and right. When the deflection is greater than 0, the cable group leans toward the side of low tension. When the deflection is less than 0, the cable group leans toward the side of high tension. When the cable group leans toward the side of low tension or the cable group leans toward the side of high tension, find the cables with abnormal tension and perform fine-tuning until the tension distribution of the cable group is symmetrical on the left and right.

[0023] Furthermore, the density variance and skewness are marked on the three-dimensional tension density field.

[0024] According to the second aspect of the present invention, a hydraulically coordinated multi-cable synchronous control system for inclined-stayed buckles is also proposed, comprising:

[0025] A cable information acquisition module is used to acquire cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number and initial tension of the cable;

[0026] A tensioning module is used to classify the tensioning operation of the hydraulic device into multiple tensioning levels, assign a sub-target tensioning force to each tensioning level, and control the hydraulic device to tension each cable starting from the first tensioning level according to the cable number and the initial tensioning force of the cable until the sub-target tensioning force corresponding to the current tensioning level is reached and the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result;

[0027] The alarm module is used to generate multiple tension approach graphs based on the current tension of each cable monitored in real time, find the cables with tension jump according to the node conditions in the tension approach graphs, and issue an alarm message.

[0028] Furthermore, the pressure difference approximation variables for each cable are calculated as follows:

[0029] ,

[0030] in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable;

[0031] Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including:

[0032] when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold.

[0033] Furthermore, based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated, including: at the current time point, if the difference in the tension of the two cables is less than a preset difference threshold, the two cables are considered to be in a tension proximity state, and the two cables are abstracted as nodes and connected with connecting edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded.

[0034] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0035] 1. The method of the present invention decouples the overall tensioning process into multi-level sub-goals, which are executed serially according to the cable number and initial cable force. Secondly, the pressure difference approach variable of each cable is calculated in real time, and when the rate of change exceeds a threshold, dynamic fine-tuning of the hydraulic device is triggered. Simultaneously, based on the topological structure of the tension approach graph, cable force jump nodes with gradient mutations greater than 5% are identified and an early warning is issued. This enables precise hydraulic coordinated control of the cables of cable bridges, greatly improving operational efficiency.

[0036] 2. The method of the present invention calculates the tension difference between cables in real time, and dynamically constructs an undirected graph network with cables as nodes and proximity relationships as edges when the difference is less than a preset threshold; periodically scans the number of sudden changes in the tension proximity graph to accurately locate cables with sudden tension jumps; synchronously maps the cable numbers and current cable forces into a two-dimensional scattered point set, generates a heat map through kernel density estimation, and stacks them along the time axis to form a three-dimensional tension density field, significantly improving the warning accuracy.

[0037] 3. The method of the present invention extracts the heat map statistical features of each time slice in the three-dimensional tension density field: calculates the density variance to determine the cable force dispersion, and analyzes the skewness to diagnose the distribution balance; triggers targeted fine-tuning based on statistical decision-making - locates abnormal cable correction when the variance exceeds the limit, and implements balanced tensioning towards the low or high cable force side when the skewness is unbalanced; simultaneously dynamically marks statistical extreme points in the density field to guide the hydraulic system response, and achieves precise control of the overall cable force dispersion and distribution skewness; and significantly reduces fine-tuning energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a flow chart of the method of embodiment 1 of the present invention;

[0039] Figure 2 is a system structure diagram of embodiment 2 of the present invention;

[0040] Figure 3 is a schematic diagram of a cable-stayed bridge according to the present invention;

[0041] Figure 4 Schematic diagram of monitoring the tensioning force of the cable of the present invention. DETAILED DESCRIPTION

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0043] The method provided by the present invention can be implemented in the following terminal environment, wherein the terminal may include one or more of the following components: a processor, a storage medium, and a display screen. The storage medium stores at least one instruction, which is loaded and executed by the processor to implement the method described in the following embodiments.

[0044] A processor can include one or more processing cores. It connects various components within the terminal using various interfaces and circuits. It executes instructions, programs, code sets, or instruction sets stored in storage media, and accesses data stored in storage media to perform various terminal functions and process data.

[0045] The storage medium may include a random access memory (RAM) or a read-only memory (ROM). The storage medium may be used to store instructions, programs, codes, code sets, or instructions.

[0046] The display is used to show the user interface of each application.

[0047] In addition, those skilled in the art will appreciate that the structure of the terminal described above does not limit the terminal. The terminal may include more or fewer components, or a combination of certain components, or a different arrangement of components. For example, the terminal may also include a radio frequency circuit, an input unit, a sensor, an audio circuit, a power supply, and other components, which will not be described in detail here.

[0048] Example 1

[0049] like Figure 1 This embodiment proposes a method for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination, including:

[0050] Step 101, obtain the cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number, initial tension of the cable, cable form such as Figure 3 As shown;

[0051] Step 102: The tensioning operation of the hydraulic device is graded into multiple tensioning levels, a sub-target tensioning force is assigned to each tensioning level, and the hydraulic device is controlled to tension each cable starting from the first tensioning level, according to the cable number and the initial tensioning force of the cable, until the sub-target tensioning force corresponding to the current tensioning level is reached, and then the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned based on the comparison result.

[0052] Preferably, for example, the tensioning level can be divided into three levels, and each level has a sub-target tensioning force of 33% of the total target tensioning force. Of course, the total target tensioning force can also be unequally distributed. This embodiment does not limit the number of levels of tensioning levels and the proportion of sub-target tensioning forces corresponding to each level.

[0053] Specifically, the pressure difference approach variable for each cable is calculated as follows:

[0054] ,

[0055] in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable;

[0056] Preferably, the adjustment factor The setting can be made based on expert experience or historical experience, and is not limited in this embodiment.

[0057] Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including:

[0058] when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold.

[0059] Step 103: Generate multiple tension proximity graphs based on the current tension of each cable monitored in real time, find the cables with sudden tension jumps based on the node conditions in the tension proximity graphs, and issue an alarm.

[0060] Specifically, such as Figure 4 As shown, through the tension monitoring device (the tension monitoring device can be set Figure 4The current tension of each cable monitored in real time (within the dotted box, the tension is measured by the fixed end of the cable within the dotted box), and multiple tension proximity graphs are generated based on the current tension of each cable monitored in real time, including: at the current time point, if the difference in the tension of the two cables is less than a preset difference threshold, then the two cables are considered to be in a tension proximity state, the two cables are abstracted as nodes and connected with connecting edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded.

[0061] Specifically, according to the node conditions in the tension proximity graph, searching for the cable where the tension jump occurs includes: obtaining all the tension proximity graphs once every time period, and when the number of all the tension proximity graphs increases or decreases by more than the allowed number threshold, the cable corresponding to the increased tension proximity graph or the cable corresponding to the decreased tension proximity graph is used as the cable where the tension jump occurs.

[0062] Specifically, after step 103, this embodiment further includes: mapping the cable number of each cable and the corresponding current tension force into two-dimensional points to form a "cable number-current tension force" scatter point set, wherein the cable number of each cable is used as the abscissa and the current tension force of each cable is used as the ordinate;

[0063] Based on the “cable number-current tension” scatter point set, a density distribution heat map of the current tension under different cable numbers is generated through two-dimensional kernel density estimation;

[0064] Within the time period for completing each of the tensioning levels, multiple continuous sampling intervals are set, and all density distribution heat maps within all sampling intervals are obtained, and all density distribution heat maps are stacked according to the sampling intervals to generate a three-dimensional tension density field, wherein the cable number of each cable is used as the horizontal coordinate, the current tensioning force of each cable is used as the vertical coordinate, and the sampling interval is the depth axis.

[0065] Specifically, the density variance and skewness of the density distribution heat map corresponding to each sampling interval are calculated;

[0066] When the density variance is less than the preset variance threshold, the tension of the cable group is consistent and the coordination is normal. Otherwise, there is a deviation in the tension of the cable group. The cable with abnormal tension is found and fine-tuned.

[0067] Preferably, the formula for calculating density variance is as follows:

[0068] ,

[0069] in, is the sampling interval The density variance when is the number of cables, is the sampling interval Time The current tension of the cable, is the sampling interval The average tension of all cables at .

[0070] When the deflection is approximately equal to 0 (this embodiment does not limit how much deflection is considered approximately equal to 0, and the user can set it reasonably), the tension distribution of the cable group is symmetrical on the left and right. When the deflection is greater than 0, the cable group leans toward the side of low tension. When the deflection is less than 0, the cable group leans toward the side of high tension. When the cable group leans toward the side of low tension or the cable group leans toward the side of high tension, find the cables with abnormal tension and perform fine-tuning until the tension distribution of the cable group is symmetrical on the left and right.

[0071] Preferably, the formula for calculating skewness is as follows:

[0072] ,

[0073] in, is the sampling interval The skewness of is the number of cables, is the sampling interval Time The current tension of the cable, is the sampling interval The average tension of all cables is is the sampling interval Standard deviation of density.

[0074] Specifically, the density variance and skewness are marked on the three-dimensional tension density field.

[0075] Example 2

[0076] like Figure 2 As shown, this embodiment proposes a synchronous control system for multiple cables of an inclined-stayed buckle based on hydraulic coordination, comprising:

[0077] A cable information acquisition module is used to acquire cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number and initial tension of the cable;

[0078] A tensioning module is used to classify the tensioning operation of the hydraulic device into multiple tensioning levels, assign a sub-target tensioning force to each tensioning level, and control the hydraulic device to tension each cable starting from the first tensioning level according to the cable number and the initial tensioning force of the cable until the sub-target tensioning force corresponding to the current tensioning level is reached and the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result;

[0079] Specifically, the pressure difference approach variable for each cable is calculated as follows:

[0080] ,

[0081] in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable;

[0082] Preferably, the adjustment factor The setting can be made based on expert experience or historical experience, and is not limited in this embodiment.

[0083] Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including:

[0084] when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold.

[0085] The alarm module is used to generate multiple tension approach graphs based on the current tension of each cable monitored in real time, find the cables with tension jump according to the node conditions in the tension approach graphs, and issue an alarm message.

[0086] Specifically, based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated, including: at the current time point, if the difference in the tension of the two cables is less than a preset difference threshold, the two cables are considered to be in a tension proximity state, the two cables are abstracted as nodes and connected with connecting edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded.

[0087] Specifically, according to the node conditions in the tension proximity graph, searching for the cable where the tension jump occurs includes: obtaining all the tension proximity graphs once every time period, and when the number of all the tension proximity graphs increases or decreases by more than the allowed number threshold, the cable corresponding to the increased tension proximity graph or the cable corresponding to the decreased tension proximity graph is used as the cable where the tension jump occurs.

[0088] Specifically, this embodiment further includes, after the alarm module: mapping the cable number of each cable and the corresponding current tension force into two-dimensional points to form a "cable number-current tension force" scattered point set, wherein the cable number of each cable is used as the horizontal coordinate and the current tension force of each cable is used as the vertical coordinate;

[0089] Based on the “cable number-current tension” scatter point set, a density distribution heat map of the current tension under different cable numbers is generated through two-dimensional kernel density estimation;

[0090] Within the time period for completing each of the tensioning levels, multiple continuous sampling intervals are set, and all density distribution heat maps within all sampling intervals are obtained, and all density distribution heat maps are stacked according to the sampling intervals to generate a three-dimensional tension density field, wherein the cable number of each cable is used as the horizontal coordinate, the current tensioning force of each cable is used as the vertical coordinate, and the sampling interval is the depth axis.

[0091] Specifically, the density variance and skewness of the density distribution heat map corresponding to each sampling interval are calculated;

[0092] When the density variance is less than the preset variance threshold, the tension of the cable group is consistent and the coordination is normal. Otherwise, there is a deviation in the tension of the cable group. The cable with abnormal tension is found and fine-tuned.

[0093] When the deflection is approximately equal to 0, the tension distribution of the cable group is symmetrical on the left and right. When the deflection is greater than 0, the cable group leans toward the side of low tension. When the deflection is less than 0, the cable group leans toward the side of high tension. When the cable group leans toward the side of low tension or the cable group leans toward the side of high tension, find the cables with abnormal tension and perform fine-tuning until the tension distribution of the cable group is symmetrical on the left and right.

[0094] Specifically, the density variance and skewness are marked on the three-dimensional tension density field.

[0095] Example 3

[0096] An embodiment of the present invention further provides a storage medium storing a plurality of instructions, wherein the instructions are used to implement the method for synchronously controlling multiple cables of an inclined-stayed buckle based on hydraulic coordination.

[0097] Optionally, in this embodiment, the storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group.

[0098] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the method of embodiment 1.

[0099] Example 4

[0100] An embodiment of the present invention also proposes an electronic device, comprising a processor and a storage medium connected to the processor, wherein the storage medium stores a plurality of instructions, which can be loaded and executed by the processor, so that the processor can execute the method for synchronous control of multiple cables of an inclined-stayed buckle based on hydraulic coordination.

[0101] Specifically, the electronic device of this embodiment may be a computer terminal, which may include: one or more processors, and a storage medium.

[0102] The storage medium can be used to store software programs and modules, such as the corresponding program instructions / modules for the method for synchronously controlling multiple cables of a cable-stayed hook based on hydraulic coordination in an embodiment of the present invention. The processor executes the software programs and modules stored on the storage medium to perform various functional applications and data processing, thereby implementing the method for synchronously controlling multiple cables of a cable-stayed hook based on hydraulic coordination. The storage medium can include high-speed random access memory (RAM) and non-volatile storage media, such as one or more magnetic storage systems, flash memory, or other non-volatile solid-state storage media. In some instances, the storage medium may further include storage media located remotely from the processor, which can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0103] The processor can call the information and application programs stored in the storage medium through the transmission system to execute the method of embodiment 1.

[0104] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0105] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, and can be electrical or other forms.

[0107] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0109] 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 technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only storage medium (ROM, Read-Only Memory), random access storage medium (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0110] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A method for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination, characterized in that: include: Acquire cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number and initial tension of the cable; The tensioning operation of the hydraulic device is graded and divided into multiple tensioning levels. A sub-target tensioning force is assigned to each tensioning level. The hydraulic device is controlled to tension each cable starting from the first tensioning level according to the cable number and the initial tensioning force of the cable until the sub-target tensioning force corresponding to the current tensioning level is reached and the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result. The variables for calculating the pressure difference approach for each cable include: ， in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable; Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including: when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold; Generate multiple tension approach graphs based on the current tension of each cable monitored in real time, find the cables with sudden tension jumps based on the node conditions in the tension approach graphs, and issue an alarm message; Based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated, including: at the current time point, if the difference in tension between two cables is less than a preset difference threshold, the two cables are considered to be in a tension proximity state, the two cables are abstracted as nodes and connected with edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded; According to the node conditions in the tension proximity graph, searching for the cable where the tension jump occurs includes: obtaining all the tension proximity graphs once every time period, and when the number of all the tension proximity graphs increases or decreases by more than the allowed number threshold, the cable corresponding to the increased tension proximity graph or the cable corresponding to the decreased tension proximity graph is regarded as the cable where the tension jump occurs.

2. The method for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination according to claim 1, characterized in that: The method further includes mapping the cable number of each cable and the corresponding current tension force into two-dimensional points to form a "cable number-current tension force" scatter point set, wherein the cable number of each cable is used as the abscissa and the current tension force of each cable is used as the ordinate; Based on the "cable number - current tension" scatter point set, a two-dimensional kernel density estimation is used to generate a density distribution heat map of the current tension under different cable numbers; Within the time period for completing each of the tensioning levels, multiple continuous sampling intervals are set, and all density distribution heat maps within all sampling intervals are obtained, and all density distribution heat maps are stacked according to the sampling intervals to generate a three-dimensional tension density field, wherein the cable number of each cable is used as the horizontal coordinate, the current tensioning force of each cable is used as the vertical coordinate, and the sampling interval is the depth axis.

3. The method for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination according to claim 2, characterized in that: Calculate the density variance and skewness of the density distribution heat map corresponding to each sampling interval; When the density variance is less than the preset variance threshold, the tension of the cable group is consistent and the coordination is normal. Otherwise, there is a deviation in the tension of the cable group. The cable with abnormal tension is found and fine-tuned. When the deflection is approximately equal to 0, the tension distribution of the cable group is symmetrical on the left and right. When the deflection is greater than 0, the cable group leans toward the side of low tension. When the deflection is less than 0, the cable group leans toward the side of high tension. When the cable group leans toward the side of low tension or the cable group leans toward the side of high tension, find the cables with abnormal tension and perform fine-tuning until the tension distribution of the cable group is symmetrical on the left and right.

4. The method for synchronously controlling multiple cables of a cable-stayed buckle based on hydraulic coordination according to claim 3 is characterized in that: The density variance and skewness are annotated on the three-dimensional tension density field.

5. A hydraulically coordinated multi-cable synchronous control system for inclined-stayed buckles, characterized in that: include: A cable information acquisition module is used to acquire cable information of each cable and configure a hydraulic device for each cable, wherein the cable information includes: cable number and initial tension of the cable; A tensioning module is used to classify the tensioning operation of the hydraulic device into multiple tensioning levels, assign a sub-target tensioning force to each tensioning level, and control the hydraulic device to tension each cable starting from the first tensioning level according to the cable number and the initial tensioning force of the cable until the sub-target tensioning force corresponding to the current tensioning level is reached and the next tensioning level is entered. The current tensioning force of each cable is monitored in real time, and the pressure difference approach variable of each cable is calculated. The pressure difference approach variable is compared with the pressure difference approach variable threshold, and the corresponding cable is fine-tuned according to the comparison result; The variables for calculating the pressure difference approach for each cable include: ， in, For the The pressure difference of the cable approaches the variable, is the adjustment factor, is the average tension of all cables, For the The current tension of the cable; Compare the pressure difference approach variable with the pressure difference approach variable threshold, and fine-tune the corresponding cable according to the comparison result, including: when When , no adjustment is made; when When When the pressure relief is fine-tuned, is the pressure difference approaching variable threshold; An alarm module is used to generate multiple tension proximity graphs based on the current tension of each cable monitored in real time, find the cables with sudden tension jumps based on the node conditions in the tension proximity graphs, and issue an alarm message; Based on the current tension of each cable monitored in real time, multiple tension proximity graphs are generated, including: at the current time point, if the difference in tension between two cables is less than a preset difference threshold, the two cables are considered to be in a tension proximity state, the two cables are abstracted as nodes and connected with edges to form an undirected graph as the tension proximity graph of the two cables, and all tension proximity graphs at the current time point are recorded; According to the node conditions in the tension proximity graph, searching for the cable where the tension jump occurs includes: obtaining all the tension proximity graphs once every time period, and when the number of all the tension proximity graphs increases or decreases by more than the allowed number threshold, the cable corresponding to the increased tension proximity graph or the cable corresponding to the decreased tension proximity graph is regarded as the cable where the tension jump occurs.

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