Digital twin pushing visual control method and system based on building information model

Abstract

The application discloses a digital twin push visual control method and system based on a building information model, and the system comprises a data acquisition module, a modeling module and a push control module, is respectively used for collecting data including a walking machine push displacement data, constructs a push model based on the building information model in a three-dimensional environment based on a push scene and the collected data, and associates the collected data with the push model, and drives the push model to simulate field push operation according to the displacement data of the data acquisition module; the method is to establish and publish the push model according to construction drawings and a construction environment; each push round is associated with the push model through push round setting; each round is configured in detail on the basis of the push round through push task setting; field push displacement data is acquired and mapped into the corresponding push round according to the start and end time, so as to drive the push model to control the current push progress in real time.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge intelligent construction, and particularly relates to a digital twin pushing visualization control method and system based on a building information model. BACKGROUND

[0002] With the development of BIM (Building Information Modeling) technology, its application in bridge pushing construction is becoming increasingly important, bringing unprecedented accuracy and efficiency to the entire construction process. By creating a detailed three-dimensional model, BIM technology enables the construction team to pre-visualize the entire pushing process in a virtual environment, thereby identifying and resolving potential design conflicts, structural problems, and construction obstacles. This forward-looking planning not only helps to reduce site changes and delays, but also significantly improves construction safety.

[0003] In the prior art, Chinese patent (application number: 202410469538.0) discloses a steel truss pushing progress visualization display method and system based on digital twin. This patent only uses any one or more of Beidou positioning technology, intelligent video image recognition, total station robot, and millimeter wave radar to obtain real-time steel truss pushing displacement monitoring data. However, in actual pushing operation, pushing displacement is achieved through a walking machine. This patent does not obtain horizontal displacement in the transverse, longitudinal, and vertical directions through a walking machine control cabinet device, which lacks precision. In addition, in the simulation progress display process, this patent relies on the visibility of BIM components to display the progress visualization. However, the actual pushing process is a dynamic moving process. This patent does not combine BIM models for real-time dynamic moving display, and does not fully utilize the three-dimensional visualization effect of BIM, thus having certain limitations. SUMMARY

[0004] To solve the problems of the prior art and achieve the purposes of real-time dynamic visualization of steel truss pushing and improved visualization precision, the present application adopts the following technical solutions:

[0005] The digital twin pushing visualization control system based on a building information model includes a data acquisition module, a modeling module, and a pushing control module.

[0006] The data acquisition module is connected to a walking machine total control cabinet device, and the acquired data includes walking machine pushing displacement data.

[0007] The modeling module constructs a pushing model based on a building information model (BIM) in a three-dimensional environment based on the pushing scene and the acquired data, and associates the acquired data with the pushing model.

[0008] The incremental construction module simulates the on-site incremental operation according to the displacement data of the data acquisition module, so as to realize digital twinning.

[0009] Further, the data acquisition module is connected with the walking machine through each sub-control cabinet device and the walking machine through the walking machine general control cabinet device, so as to acquire the incremental displacement data of the steel truss girder driving the steel truss girder to move through the displacement data of the steel truss girder connected with the walking machine; the incremental model comprises a main pier provided with a pier-side bracket, a splicing platform and a temporary pier are sequentially arranged on one side of the main pier, and a steel guide beam is arranged on the pier-side bracket, the splicing platform and the temporary pier, and the steel guide beam is used for guiding the displacement of the steel truss girder.

[0010] Further, the data acquisition module comprises real-time automatic acquisition of on-site data and manual reporting of on-site data.

[0011] Further, the incremental model is jointly constructed based on a geographic information system (GIS) and the building information model.

[0012] Further, the incremental construction module supports playback of the incremental data of the pushed round and import of the subsequent incremental round data, so as to advance the complete process of the subsequent incremental operation on the building information model, wherein in the building information model deduction process, the moving speed calculation rule of the incremental operation is displacement divided by time, wherein the displacement and the time can be configured; the building information model simulation comprises transverse, longitudinal and vertical displacement data, so as to simulate the vertical incremental operation of the walking machine on the steel truss girder.

[0013] Further, the system further comprises a warning module connected with the data acquisition module, which is used for comparing the collected data with a preset range, and sending a warning signal when the collected data exceeds the preset range.

[0014] Further, the system further comprises a data analysis module connected with the data acquisition module, which is used for analyzing the state in the incremental construction process according to the collected operation data; and further collects other monitoring data, including three categories of environmental monitoring data, response monitoring data and change monitoring data, wherein the environmental monitoring data comprises bridge site environmental temperature, steel truss girder component temperature and video data; the response monitoring data comprises guide beam deflection, rod stress, bridge pier longitudinal displacement, bridge pier stress, bridge pier strain, steel truss girder height difference, steel truss girder transverse displacement, incremental pressure, jacking pressure, rod internal force and rod stress; and the change monitoring data comprises bridge pier settlement, splicing platform settlement, guide beam front elevation and guide beam front displacement; the monitoring and collection mode adopts any one or more of a temperature sensor, a total station, a level gauge, a strain sensor and a camera, so as to ensure the safety of the bridge construction.

[0015] The application discloses a digital twin pushing visual control method based on a building information model.

[0016] Step 1, constructing a pushing model, establishing and publishing a building information model according to construction drawings and a construction environment;

[0017] Step 2, pushing round setting, associating each pushing round with the building information model steel truss girder and steel guide beam respectively, and setting the component identification (for example, color) of the model for model visual display;

[0018] Step 3, pushing task setting, performing detailed configuration on each round on the basis of the pushing round;

[0019] Step 4, acquiring field pushing displacement data, and mapping the field pushing displacement data into the corresponding pushing round according to the start and end time, and driving the pushing model to control the current pushing progress in real time on the basis of the association between the pushing round and the pushing model in step 2.

[0020] Further, in step 1, the building information model is provided with a main pier of a pier-side bracket, a splicing platform and a temporary pier are sequentially arranged on one side of the main pier, the pier-side bracket, the splicing platform and the temporary pier are provided with a steel guide beam, and the steel guide beam is used for guiding the displacement of the steel truss girder.

[0021] In step 2, each pushing round is associated with the building information model steel truss girder and steel guide beam respectively, the first round is associated with the steel guide beam and the steel truss girder, and the second round and subsequent rounds are respectively associated with other steel truss girders.

[0022] In step 3, the detailed configuration includes whether to assemble, whether to push, whether to install or remove the steel guide beam, the start time and the end time, wherein each round is configured in the order of assembly first and pushing later, and the last round needs to be additionally configured to remove the steel guide beam in addition to assembly and pushing.

[0023] In step 4, the field pushing displacement data is acquired through a data acquisition module arranged in a walking machine general control cabinet device, through each sub-control cabinet device, through the displacement data of the steel truss girder connected with the walking machine, and the pushing displacement data for driving the movement of the steel truss girder.

[0024] Further, in step 4, driving the pushing model to control the current pushing progress in real time specifically includes the following steps.

[0025] Step 4.1, initializing and publishing the established building information model of the steel truss girder and the steel guide beam outside the two ends of the outermost pier, so as to move through the received displacement in the subsequent steps;

[0026] Step 4.2, before the steel truss pushing construction, the established steel truss and steel guide beam building information model are all hidden, only the building information model of the temporary pier, main pier, pier side bracket and splicing platform is displayed;

[0027] Step 4.3, the position of the steel truss is moved, the task round is configured through step 3, and the dynamic display is carried out, if the task type is splicing, the building information model is displayed and hidden, if the task type is pushing, the steel truss is pushed and moved according to the obtained field displacement data; Specifically, the following steps are included:

[0028] Step 4.3.1, for the first round of connected models, first splicing, through the display mode, the steel guide beam and the steel truss hidden in step 4.2 are converted from hidden state to display state, the hidden state is converted to display state by calling the transparency and visibility method of the three-dimensional engine interface, so that the on-site splicing process is more real.

[0029] Step 4.3.2, for the first round of connected models, after splicing, pushing is carried out, the pre-preparation process of pushing construction is simulated through the splicing of step 4.3.1, pushing operation is carried out, the steel truss position is driven in real time according to the displacement data obtained from the walking machine control cabinet, wherein the moving speed is calculated by using the displacement data, starting time and ending time of the walking machine, and the formula is as follows: displacement data / (ending time-starting time);

[0030] Step 4.3.3, for the second round of connected models, the splicing process of step 4.3.1 and the pushing process of step 4.3.2 are repeated, so that the steel truss connected in the second round is pushed forward by a distance; the splicing and pushing of other rounds of steel truss are the same;

[0031] Step 4.3.4, the last round, the steel guide beam needs to be removed, according to whether the steel beam is removed configured in step 3, the steel guide beam is changed from display state to hidden state, so as to realize the removal of the steel guide beam.

[0032] The advantages and beneficial effects of the present application are that:

[0033] The present application is based on the existing technology of component visibility, through the two actions of splicing and pushing, and the displacement data of BIM simulation pushing process is obtained through the walking machine total control cabinet, the data is more accurate and reasonable, the displacement data obtained is used to drive the BIM model to move and update in real time, so as to realize the interconnection of field pushing construction and BIM model, and further simulate the field pushing construction process based on BIM, and realize the automatic update of pushing visual BIM model in a true sense. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1is a schematic diagram of the system structure of an embodiment of the present application.

[0035] Figure 2 is a schematic diagram of the structure of a walking machine in an embodiment of the present application.

[0036] Figure 3 is a flowchart of the method of an embodiment of the present application.

[0037] Figure 4 is a model initialization diagram before pushing in an embodiment of the present application.

[0038] Figure 5 is a model effect diagram of hidden steel truss and steel guide beam in an embodiment of the present application.

[0039] Figure 6 is a model state diagram before pushing in an embodiment of the present application.

[0040] Figure 7 is a model assembly (model appearance and disappearance) effect diagram in the first round of an embodiment of the present application.

[0041] Figure 8 is a model pushing (model movement) effect diagram in the first round of an embodiment of the present application.

[0042] Figure 9 is a model assembly (model appearance and disappearance) effect diagram in the second round of an embodiment of the present application.

[0043] Figure 10 is a model pushing (model movement) effect diagram in the second round of an embodiment of the present application.

[0044] Figure 11 is a state diagram before the last round of model dismantling in an embodiment of the present application.

[0045] Figure 12 is a state diagram after the last round of model dismantling in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0047] As shown in Figure 1 , the digital twin pushing visualization control system based on the building information model includes a data acquisition module, a modeling module, a pushing control module, an early warning module, and a data analysis module.

[0048] The data acquisition module is arranged in the total control cabinet device of the walking machine, and is used for acquiring the jacking displacement data of the walking machine. The total control cabinet device is connected with the sub-control cabinet device, each sub-control cabinet device is connected with the walking machine, and the walking machine is connected with the steel truss beam 1, and then the steel truss beam 1 is driven to move through the jacking displacement. In addition to automatically acquiring the field data in real time, the data acquisition module also supports manual reporting of the field data.

[0049] The modeling module is associated with the data acquisition module, and mainly establishes a GIS+BIM model in a three-dimensional environment, including scene schematic models such as the steel truss beam 1, the temporary pier 2, the splicing platform 3, the steel guide beam 6, the pier-side bracket 5 and the main pier 4.

[0050] The jacking construction module is connected with the modeling module, and is used for simulating the field jacking operation based on the BIM model and the displacement data of the data acquisition module, so as to realize digital twinning. In addition to receiving the data of the data acquisition module in real time, driving the BIM model and simulating the field jacking construction process, the jacking construction module also supports playing back the jacked round data and importing the subsequent jacking round data, so as to pre-rehearse the complete process of the subsequent jacking on the BIM model. In the BIM simulation process, the model moving speed in the jacking process is calculated by dividing the displacement by the time, and the displacement and the time can be configured. The BIM model not only simulates the horizontal and vertical displacement data of the horizontal and vertical jacks 7 and 8 of the walking machine, but also simulates the vertical displacement of the vertical jack 9 of the walking machine, so as to simulate the effect of the vertical jacking of the steel truss beam 1 by the walking machine, as shown in FIG. 8. Figure 2

[0051] The early warning module is connected with the data acquisition module, and is used for comparing the field data with a preset range, and sending a warning signal when the collected data exceeds the preset range.

[0052] The data analysis module is connected with the data acquisition module, and is used for analyzing the state of the jacking construction process according to the running data of the data acquisition module. The data analysis module also collects other monitoring data, and the monitoring types include three categories of environmental monitoring data, response monitoring data and change monitoring data. The environmental monitoring data includes bridge site environmental temperature, steel truss beam component temperature and video data. The response monitoring data includes guide beam deflection, member stress, bridge pier longitudinal displacement, bridge pier stress, bridge pier strain, steel truss beam height difference, steel truss beam transverse displacement, jacking pressure, jacking pressure, member internal force and member stress. The change monitoring data includes bridge pier settlement, splicing platform settlement, guide beam front elevation and guide beam front displacement. The monitoring collection mode adopts any one or more of a temperature sensor, a total station, a level gauge, a strain sensor and a camera, so as to ensure the safety of the bridge construction.

[0053] As shown in FIG. 9. Figure 3 ​As shown, the digital twin push visualization control method based on the building information model comprises the following steps:

[0054] Step 1, build a push model, such as Figure 4 As shown, a BIM model is established according to construction drawings and the surrounding environment, the model includes steel truss 1, temporary pier 2, splicing platform 3, steel guide beam 6, pier-side bracket 5 and main pier 4, and the model is published;

[0055] Step 2, push round setting, associate each push round with the BIM model steel truss 1 and steel guide beam 6 established in step 1 respectively, and set the color of the model to facilitate visualization of the model, wherein the first round is associated with the model of steel guide beam 6 and steel truss 1. The second round and subsequent rounds are respectively associated with other steel truss 1 models;

[0056] Step 3, push task setting, on the basis of step 2 push round, each round is configured in detail, including whether to assemble or push, whether to remove steel guide beam 6, start time and end time. Each round is configured in the order of assembly first and then pushing, and the last round needs to be configured to remove steel guide beam 6 in addition to assembly and pushing.

[0057] Step 4, obtain the displacement data of the field push, and map it to the corresponding push round according to the start time and end time, and the push round is associated with the model according to step 2, thereby driving the model to display the current construction progress in real time. Driving the model to display the current construction progress in real time comprises the following steps:

[0058] Step 4.1, initialize the established BIM model of steel truss 1 and steel guide beam 6 outside the two ends of the outermost pier, so as to move by receiving displacement in the future, as shown in Figure 4 ;

[0059] Step 4.2, before the steel truss push construction, hide all the established BIM models of steel truss 1 and steel guide beam 6, and only display the BIM models of temporary pier 2, main pier 4, pier-side bracket 5 and splicing platform 3, as shown in Figure 5 ;

[0060] Step 4.3, position movement display of steel truss 1, dynamically display through the task round configured in step 3, which specifically includes task type. If it is assembly, the model is displayed and hidden. If it is task type, the model is moved according to the obtained field displacement data; Specifically comprising the following steps:

[0061] Step 4.3.1, for the first round of the model, first assembly, by display, the hidden steel girder 6 and steel truss 1 of step 4.2 is converted from hidden to display, hidden to display can be converted by calling the transparency and visibility method of the three-dimensional engine interface, so as to more truly show the process of site assembly, as shown in Figure 6 、 Figure 7

[0062] Step 4.3.2, for the first round of the model, second push, through the assembly of step 4.3.1, the pre-preparation process of the push construction has been simulated, the next step is the push operation, according to the displacement data transmitted by the walking machine control cabinet, the position of the model is driven in real time, wherein the moving speed is mainly calculated by using the displacement data, start time and end time three data, so as to calculate the speed of pushing BIM model: displacement data / (end time-start time), as shown in Figure 7 、 Figure 8

[0063] Step 4.3.3, for the second round of the model, repeat step 4.3.1 assembly and step 4.3.2 push process, so as to push the second round of the steel truss 1 a distance, as shown in Figure 9 、 Figure 10

[0064] Step 4.3.4, the last round, the steel guide beam 6 needs to be removed, then according to the whether to remove the steel beam switch configured in step 3, the steel guide beam 6 is changed from display state to hidden state, so as to realize the removal of the steel guide beam 6, as shown in Figure 11 、 Figure 12

[0065] In the prior art, only the component visibility is based on, the present application is controlled by assembly visibility and push movement two actions, and the displacement data of BIM simulation push process is obtained by walking machine control cabinet, the data is more accurate and reasonable, so as to realize the interconnection of site push construction and BIM model, and then the site push construction process is simulated truly.

[0066] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing examples, or replace some or all of the technical features with equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.​​​​

Claims

1. A method for visual control of digital twin incremental launching based on building information modeling, using a system for visual control of digital twin incremental launching based on building information modeling, the system comprising a data acquisition module, a modeling module, and an incremental launching control module, wherein the data acquisition module acquires data including incremental launching displacement data of a walking machine; the modeling module constructs an incremental launching model based on building information modeling in a three-dimensional environment based on an incremental launching scene and the acquired data, and associates the acquired data with the incremental launching model; and the incremental launching control module drives the building information model to simulate on-site incremental launching operation according to the displacement data of the data acquisition module; characterized in that: The jacking control module supports playback of jacked round data and import of subsequent jacking round data, and further simulates the complete process of subsequent jacking on the building information model, wherein, in the building information model simulation process, the moving speed calculation rule of the jacking process is displacement divided by time; the building information model simulation includes lateral, longitudinal and vertical displacement data to simulate the vertical jacking of the walking machine steel truss girder (1); the method comprises the following steps: Step 1, constructing a jacking model, establishing and publishing a building information model according to construction drawings and construction environment; The building information model is provided with a main pier (4) provided with a pier-side bracket (5), a splicing platform (3) and a temporary pier (2) on one side of the main pier (4) in sequence, and a steel guide beam (6) on the pier-side bracket (5), the splicing platform (3) and the temporary pier (2), the steel guide beam (6) is used to guide the displacement of the steel truss girder (1); Step 2, jacking round setting, each jacking round is associated with the building information model, and the component identification of the model is set for visual display of the model; Each jacking round is associated with the building information model steel truss girder (1) and steel guide beam (6), the first round is associated with the steel guide beam (6) and the steel truss girder (1), and the second round and subsequent rounds are associated with other steel truss girders (1); Step 3, jacking task setting, detailed configuration is made for each round on the basis of the jacking round; The detailed configuration includes whether to assemble, whether to jacking, whether to install or remove the steel guide beam (6), start time and end time, wherein each round is configured in the order of assembly first and jacking later, and the last round needs to be configured to remove the steel guide beam (6) in addition to assembly and jacking; Step 4, obtaining field jacking displacement data, and mapping to the corresponding jacking round according to the start and end time, the jacking round is associated with the jacking model based on step 2 to drive the jacking model to control the current jacking progress in real time; The field jacking displacement data is obtained through the data acquisition module of the walking machine main control cabinet equipment, through each sub-control cabinet equipment, through the displacement data of the steel truss girder (1) connected with the walking machine, and the jacking displacement data of the driving steel truss girder (1) moving.

2. The building information model-based digital twin push visual control method of claim 1, wherein: The data acquisition module is connected with the walking machine through the walking machine main control cabinet equipment and each sub-control cabinet equipment to acquire the jacking displacement data of the driving steel truss girder (1) moving through the displacement data of the steel truss girder (1) connected with the walking machine.

3. The building information model-based digital twin push visual control method of claim 1, wherein: The data acquisition module includes real-time automatic acquisition of field data and manual reporting of field data.

4. The building information model-based digital twin push visual control method of claim 1, wherein: The jacking model is constructed based on geographic information system and building information model.

5. The building information model-based digital twin push visual control method of claim 1, wherein: The system further comprises a warning module connected with the data acquisition module, which is used to compare the collected data with the preset range, and send a warning signal when the collected data exceeds the preset range.

6. The building information model-based digital twin push visual control method of claim 1, wherein: The system also comprises a data analysis module connected with the data acquisition module, which analyzes the state in the incremental launching construction process according to the acquired operation data; and other monitoring data are also acquired, including three categories of environmental monitoring data, response monitoring data and change monitoring data, wherein the environmental monitoring data include bridge site environmental temperature, steel truss member temperature and video data; the response monitoring data include guide beam deflection, rod stress, bridge pier longitudinal displacement, bridge pier stress, bridge pier strain, steel truss height difference, steel truss transverse displacement, incremental launching pressure, jacking pressure, rod internal force and rod stress; and the change monitoring data include bridge pier settlement, splicing platform settlement, guide beam front end elevation and guide beam front end displacement; and the monitoring acquisition mode adopts any one or more of temperature sensors, total stations, levels, strain sensors and cameras.

7. The building information model-based digital twin push visual control method of claim 1, wherein: The driving incremental launching model in step 4 controls the current incremental launching progress in real time, and specifically comprises the following steps: Step 4.1, initializing the building information model of the established steel truss (1) and steel guide beam (6) outside the two ends of the outermost pier; Step 4.2, before the steel truss incremental launching construction, hiding the building information model of the established steel truss (1) and steel guide beam (6) completely, and only displaying the building information model of the temporary pier (2), main pier (4), pier-side bracket (5) and splicing platform (3); Step 4.3, position moving display of the steel truss (1), dynamic display through the task round configured in step 3, if the task type is assembly, the building information model is displayed and hidden, and if the task type is incremental launching, the steel truss (1) is moved according to the obtained field displacement data; specifically comprising the following steps: Step 4.3.1, for the model hung in the first round, first assembly, through the display mode, the steel guide beam (6) and steel truss (1) hidden in step 4.2 are converted from the hidden state to the displayed state; Step 4.3.2, for the model hung in the first round, after assembly, incremental launching is performed, the pre-preparation process of the incremental launching construction simulated through the assembly in step 4.3.1 is performed, and the steel truss (1) in the displayed state is driven to move in real time according to the displacement data obtained from the field walking machine control cabinet, wherein the moving speed is calculated by using the displacement data, start time and end time of the walking machine, and the formula is as follows: displacement data / (end time - start time); Step 4.3.3, for the model hung in the second round, the assembly in step 4.3.1 and the incremental launching in step 4.3.2 are repeated, so that the steel truss (1) hung in the second round is incrementally launched by a distance; the assembly and incremental launching of the steel truss (1) in other rounds are the same; Step 4.3.4, for the last round, the steel guide beam (6) needs to be removed, and the steel guide beam (6) is changed from the displayed state to the hidden state according to whether the steel beam is removed configured in step 3, so as to realize the removal of the steel guide beam (6).

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