Dynamic simulation method for truck crane operation

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a dynamic simulation method for truck-mounted crane operation, which comprises the following steps: taking photos of a construction site by using an unmanned aerial vehicle oblique photography technology, analyzing image data, making a three-dimensional model, and creating an engineering model and a truck-mounted crane model which need to be installed. An oblique photography model and an engineering model are integrated in 3DSMAX software, a construction machine truck-mounted crane model is arranged, the working position and the working form of each mechanism of the truck-mounted crane are changed, the construction operation of the truck-mounted crane is dynamically simulated, and the dynamic simulation of the construction operation of the truck-mounted crane is realized.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a dynamic simulation method for automobile crane operation. Background Art

[0002] In the traditional construction industry, during the construction process of mobile crane operations, the position and operating conditions of the mobile crane are analyzed through topographic drawings or construction site plan layout drawings combined with engineering construction drawings. However, since the two-dimensional drawing analysis cannot achieve three-dimensional visualization and construction dynamic analysis, and the topographic drawings or construction site plan drawings often deviate from the construction site, there is a deviation between the early analysis of the mobile crane's construction conditions and the construction site. As a result, in some cases, the mobile crane cannot perform construction operations according to the early planning. Temporary modifications to the plan during the construction process lead to waste of time and economy and the creation of safety hazards. Summary of the invention

[0003] The present invention is aimed at the above-mentioned problems and specifically designs a dynamic simulation method for automobile crane operation, so as to realize dynamic simulation of automobile crane construction operation.

[0004] To achieve the above object, the present invention provides a dynamic simulation method for a mobile crane operation, comprising the following steps: Step 1: Use drone oblique photography technology to take photos of the construction site, analyze the image data, and create a 3D model; Step 2: Create the engineering model and truck crane model required for installation; Step 3: Integrate the oblique photography model and engineering model in 3DSMAX software, and arrange the construction equipment truck crane model. By changing the working position and operation form of the various mechanisms of the truck crane, dynamically simulate the construction operation of the truck crane.

[0005] Furthermore, in step one, the drone adopts manual photography or automatic aerial photography.

[0006] Preferably, in step 1, the maximum height of manual photography does not exceed 120m.

[0007] Furthermore, in step 1, the photos taken by the drone from multiple perspectives are imported into the ContextCapture software to perform aerial triangulation and generate a three-dimensional model of the construction site.

[0008] Furthermore, in the step 2, BIM is used to establish the engineering model required for installation, and Revit software is used to draw the truck crane model.

[0009] Furthermore, in the step 2, during the modeling process of the truck crane, each mechanism is distinguished by material.

[0010] Furthermore, in the step three, a measuring tool is added to the boom of the truck crane through 3DMAX software. During the dynamic simulation process, the measuring tool will reflect the extension length and pitch angle of the boom in real time to ensure that the numerical control is within a reasonable range of the truck crane performance parameter table.

[0011] Furthermore, in the step three, 3DMAX is used to generate a construction animation of the truck crane model, and the three-dimensional model and the engineering model are combined to comprehensively analyze the operating conditions and construction sequence of the truck crane.

[0012] In summary, the present invention has the following advantages and beneficial technical effects: 1. The present invention utilizes oblique photography technology to replicate and restore the actual working environment of the mobile crane. According to the actual construction requirements and oblique photography data, the position of the mobile crane can be freely arranged in the 3DSMAX software. At the same time, according to the actual working process, the working process of the mobile crane is dynamically simulated. In a three-dimensional environment, the rationality of the arrangement of the mobile crane and the feasibility of the site are comprehensively analyzed to determine the working position, optimize the working sequence, and avoid collisions of the mobile crane and material reversal during the actual working process.

[0013] 2. The various mechanisms of the truck crane model in the present invention are distinguished by different materials, which makes it easier for designers to understand the structure, position, and possible operating obstacles of the various mechanisms of the truck crane more intuitively, and ensures the accuracy of the relative motion of the various mechanisms during the simulation motion analysis, thereby achieving the purpose of simulation analysis.

[0014] 3. The present invention utilizes 3DMAX software to integrate the oblique photography model and the truck crane model, and dynamically simulates the operating conditions of the truck crane by changing the working positions of various mechanisms in the truck crane, thereby realizing real-time analysis of the rationality of the truck crane position and construction sequence in a three-dimensional environment, determining feasible operating positions and operating sequences, and applying feasible results to the actual construction site, thereby significantly reducing construction risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is an example diagram of a three-dimensional model in the present invention; Figure 2 It is a dynamic simulation schematic diagram of the automobile crane in the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the embodiment of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; the described embodiments are part of the embodiments of the present invention, not all of the embodiments; the embodiments and directional terms described below with reference to the drawings are exemplary and intended to be used to explain the present invention, and cannot be understood as limitations on the present invention; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings: The following is combined with Figure 1-Figure 2 The present invention is described in further detail: Embodiment 1 like Figure 1-Figure 2 As shown, this embodiment discloses a dynamic simulation method for a truck crane operation, comprising the following steps: Step 1: Before the mobile crane enters the construction site, the oblique photography technology of the drone is used. That is, one drone is equipped with a vertical camera and four cameras with a 45° tilt angle to take photos and collect ground information data of the construction site; The drone adopts manual shooting, and the flight altitude is set according to the actual obstacle height at the construction site, with a maximum altitude of no more than 120m. When making flight plans and route designs, it is clear that the heading and lateral overlap are maintained at more than 80% to ensure the accuracy of the subsequent 3D model production; like Figure 1 As shown, open the ContextCapture software, create a new project, select the "Aerial Triangulation" template, import photos taken by the drone from multiple perspectives, and the software automatically analyzes the image data, reconstructs and exports the OBJ format 3D model of the construction site; Step 2: Use BIM to create the required lifting engineering model. In addition, use Revit software to draw the truck crane model. In the drawing process, the various mechanisms of the truck crane are distinguished by material. The color, texture and transparency properties of the material are modified to distinguish them, so that dynamic simulation can be performed in 3DSMAX software later, and the relative movement of each mechanism can be observed intuitively; like Figure 2As shown, step three: in 3DSMAX software, import the converted OBJ format file through the batch import plug-in, merge the oblique photography model and the engineering model, ensure that the two are in the same coordinate space, and after the relative position relationship is correct, continue to import the automobile crane model of the construction machinery, place the automobile crane model in the appropriate position in the scene, ensure that the proportion and position are coordinated with other models, check whether the material information is retained after the model is imported, and whether the various mechanisms are clearly distinguished. If it is properly retained, continue to the next step. If it is not properly retained, return to step two to rebuild the automobile crane model; Use 3DMAX software to adjust the positions of various mechanisms of construction machinery at working condition nodes, add measuring tools to the boom of the truck crane, and measure the boom extension length and pitch angle in real time during the dynamic simulation of the truck crane operation to ensure that the parameter values ​​are within the safe use range required by the truck crane performance parameter table and that the dynamic simulation meets the working parameter requirements of the truck crane; The animation tools of 3DSMAX, including keyframe animation, path animation and skeletal animation, are used to form construction animation for the truck crane model, including the movement of the crane position, the rotation of the slewing mechanism, the extension and retraction of the boom, and the lifting and lowering of the hook. Combined with the imported 3D model of the construction site and the engineering model, the collision and material transportation problems during the operation of the construction machinery are comprehensively analyzed, and the location and construction sequence of the truck crane are finally determined. The feasible simulation results are applied to subsequent actual operations.

[0017] Embodiment 2 The difference between this embodiment and the first embodiment is that the drone adopts automatic aerial photography. According to the conditions of the construction site, the route and flight altitude of the drone are pre-set and planned, and automatic cruising is turned on to take oblique photographs and collect topographic maps of the construction site. The other technical features are the same.

[0018] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dynamic simulation method for truck crane operation, characterized in that: The following steps are involved: Step 1: Use drone oblique photography technology to take photos of the construction site, analyze the image data, and create a 3D model; Step 2: Create the engineering model and truck crane model required for installation; Step 3: Integrate the oblique photography model and engineering model in 3DSMAX software, and arrange the construction equipment truck crane model. By changing the working position and operation form of the various mechanisms of the truck crane, dynamically simulate the construction operation of the truck crane.

2. A method for dynamic simulation of vehicle crane operation according to claim 1, characterized in that: In the step 1, the drone adopts manual photography or automatic aerial photography.

3. A dynamic simulation method for truck crane operation according to claim 2, characterized in that: In the step 1, the maximum height of manual photography does not exceed 120m.

4. The method for dynamic simulation of a mobile crane operation according to claim 1, characterized in that: In the step 1, the photos taken by the drone from multiple perspectives are imported into the ContextCapture software to perform aerial triangulation and generate a three-dimensional model of the construction site.

5. The method for dynamic simulation of a mobile crane operation according to claim 1, characterized in that: In the step 2, BIM is used to establish the engineering model required for installation, and Revit software is used to draw the truck crane model.

6. The method for dynamic simulation of a mobile crane operation according to claim 1, characterized in that: In the step 2, during the modeling process of the automobile crane, each mechanism is distinguished by material.

7. The method for dynamic simulation of a mobile crane operation according to claim 1, characterized in that: In the step three, a measuring tool is added to the boom of the truck crane through 3DMAX software. During the dynamic simulation process, the measuring tool will reflect the extension length and pitch angle of the boom in real time to ensure that the numerical value is controlled within a reasonable range of the truck crane performance parameter table.

8. The method for dynamic simulation of a mobile crane operation according to claim 1, characterized in that: In the step three, 3DMAX is used to generate a construction animation of the truck crane model, and the three-dimensional model and the engineering model are combined to comprehensively analyze the operating conditions and construction sequence of the truck crane.

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