92 results about "Collision checking" patented technology

A BIM based metro constructiontechnique method comprises the implementing process that a metro construction site three-dimensional model is established, comprehensive pipeline collision checking is conducted, local complicated structures are visually analyzed, 4D dynamic simulation and analysis optimization are performed, model data information is extracted, and site layout and simulation are performed. By the adoption of the method, a metro engineering construction organization model in a complicated environment is established, the dynamic relation of progress, resources and site factors in the construction process is comprehensive considered, the complexity, uncertainty and randomness in construction can be well expressed, and the intuition,feasibility and scientificity of construction organization can be strengthened. The method is based on construction and endures in a whole metro construction life cycle. Due to the fact that the metro engineering BIM model used during implementation of the technique method provides accurate construction information for operation and maintenance of metro engineering, the management efficiency of the metro engineering is greatly improved by implementing the technique method, and a technical support is provided for achievement of scientific and technological metros and green metros.

The invention relates to a BIM (Building Information Modeling)-based curtain wall parametrization design method, which comprises the following steps: building a BIM mass model of a curtain wall; building multiple parametrization basic unit plate models; assembling each basic unit plate model to the BIM mass model in a simulating manner, checking collision, and judging the feasibility of the designing scheme according to the assembly situation; integrating the well-assembled BIM model with other crossed professional BIM model, and checking whether the integrated model conflicts or not. Through BIM, the parametrization design of a curtain wall project is realized, the problem of building a curved-surface curtain wall by using standard rectangular unit plates is handled, the parametrization dimension driven design and adjustment functions are integrated, so that the control dimension of the curtain wall units is amended at any time, thus the design efficiency is improved, the error rate is reduced, and a project delay risk is lowered; the collision checking function of the BIM technology is adopted, so the change, monitoring and dynamic management on the curtain wall design are realized. The BIM-based curtain wall parametrization design method can be used in the design of curtain walls.

The invention relates to a BIM-based fabricated building design method and device. According to the method, by creating a BIM (building information model) according to a design and construction drawing, performing fabricated structure splitting and deepening design based on the BIM, performing cast-in-situ and prefabricated structure connection collision checking, performing automatic quantity calculation based on the BIM, performing digital display of a fabricated building construction technology, method and process and establishing a fabricated component standard family, a design scheme, a manufacturing demand and an installation demand are integrated in the BIM, integration of fabricated building design is realized, problems possibly generated in the actual manufacturing and installation process can be eliminated in advance, the overall efficiency of manufacturing and installation is improved, and the construction period is shortened.

The invention discloses an RFID interrogator with collide detection and a collide detection algorithm. When the interrogator receives the information returned from an electronic label, the interrogator firstly detects if the frame head data of the returned data are corrupted. If the data are corrupted, collision is considered to have occurred, and if not, data segments of the returned information are further detected for violation of the FMO coding rules. If one violation of the FMO coding rules is detected, collision is considered to have occurred, and if not, a further detection is carried out. The DSP sends an ACK command, and if the interrogator does not receive any information about the electronic lable within a time period T1max stipulated in the protocol, collision may be considered to have occurred, and if the interrogator receives return information from the electronic label, collision is considered to have not occurred, and the detection period is ended. The invention is used for detecting possible collision in three levels, and can thus increase accuracy of collision detection, provide supports to DSP module for realizing various anti-collision algorithms, and effectively increase efficiency of an interrogator of recognizing electronic labels.

A robot system includes a robot, a teach pendant having an operator interface, and a robot controller with a computer and associated hardware and software containing a virtual representation of the robot and the environment. The system employs a method for avoiding collisions including moving a manipulator arm along an actual path in an environment containing objects constituting collision geometry. Operator input is entered into the teach pendant, whereby the operator is able to directly control motion of the robot along the actual path. A recent history of the motion of the robot is recorded, and a predicted path of the robot is developed based on the input entered into the teach pendant and the recent history of the motion of the robot. Real-time collision checking between the predicted path and the collision geometry is performed while the operator manually controls the robot using the teach pendant.

The invention discloses a BIM based municipal administration road pipeline layout optimization method. The method includes: (1) inputting all the pipeline information to two-dimensional design software; (2) establishing a three-dimensional model of the pipelines on the basis of BIM modeling; (3) using a collision checking algorithm of BIM modeling to check the collision situations of all the pipelines; (4) adjusting the pipelines on the basis of pipeline comprehensive standard requirement principle till all the pipelines meet the minimum horizontal and perpendicular clear distance demand of a municipal administration pipeline comprehensive standard; (5) outputting the three-dimensional model of the comprehensive pipelines; and (6) outputting a two-dimensional model and a drawing sheet through the output three-dimensional model. The method can solve the problem that construction cannot be performed due to collision of various comprehensive pipelines during a municipal construction process through the BIM technique, can perform reasonable planning and use on the municipal administration road pipelines through an optimization design, can reduce construction waste, can shorten the construction time, can greatly improve the working efficiency of sites, and can reduce investment.

The invention relates to a space orientation computing method for a numerical control bracket, which comprises the following steps of: 1, processing three-dimensional digital analogy of each part; 2, defining a fixed mechanism and a moving mechanism in each digital analogy; 3, setting a drive command for a multiple axis movements of a numerical control bracket; 4, simulating whether each axis movement accords with an actual condition; 5, correcting a movement zero point of the digital analogy of the numerical control bracket; 6, enabling a spindle axes of an automatic drilling and riveting machine to be coincident with a normal line of a riveting point and the riveting point to be coincident with the center of a pressure foot bush; 7, refreshing the digital analogy; 8, figuring out data of five axes of the numerical digital bracket and data of a lifting position and a rotating angle of a lower riveting head under the condition of automatic drilling and riveting on any point on the surface of an airplane; 9, carrying out collision checking and batch output on space orientation data; and 10, carrying out numerical control programming to ensure that the automatic drilling and riveting machine continuously operates. According to the space orientation computing method, the numerical control system can automatically operate according to the space orientation data, and the airplane on the numerical control bracket meets the working requirements of the automatic drilling and riveting machine on the space.

The invention relates to a comprehensive pipe gallery modeling method based on BIM, and belongs to the technical field of building modeling. The comprehensive pipe gallery modeling method comprises the following steps: step 1, drawing problem carding; step 2, preliminary modeling, wherein preliminary model design is conducted through Revit according to a two-dimensional construction drawing made through CAD and the stored data; step 3, collision inspection: discovering collision through Luban BIM Works and carrying out pipeline comprehensive optimization, wherein a pipeline avoidance principleis adopted during collision; step 4, net height and clearance inspection; 5, construction section division, wherein corresponding construction section organization construction is divided according to the underground structure distribution situation of the comprehensive pipe gallery; step 6, earth excavation based on the BIM technology; step 7, construction site simulation; and step 8, roaming. The comprehensive pipe gallery modeling method has the advantages that the comprehensive pipe gallery construction problem is estimated in advance, so that the project implementation risk is integrallycontrolled.

The invention discloses a BIM-cloud-platform-based application of mobile terminal in engineering quality checking. According to the application, quality management of a construction site is realized by using a hand-held mobile terminal based on a BIM+cloud platform; and to be specific, virtual environment roaming, collision checking and reverse construction verification are carried out successively to realize high-efficiency management of the engineering quality.

The invention discloses a check method for a BIM design model of a railroad bridge. The method comprises the steps that completeness check, normativity check and accuracy check are performed on the BIM model, wherein according to the completeness check, a structure tree and property information in the BIM model are checked according to a bridge two-dimensional design drawing, and sampling is performed for material list check to ensure that parameter information in the making process of the BIM model is input completely; according to the normativity check, a spot check mode is adopted to select typical beam-type key segments for three-dimensional model visual check to ensure that the BIM model conforms to a modeling standard; according to the accuracy check, collision check of a full check mode and two-dimensional drawing output check of the spot check mode are adopted to perform collision check on the model to ensure the accuracy of spatial relation information of the BIM model; and whether the BIM model has completeness and/or accuracy and/or normativity problems is judged. The method has the advantages that the technical method and the standard process for check of the BIM design model of the railroad bridge are constructed, and the completeness of borne design information, the accuracy of a spatial relation and the normativity of a creation mode of the BIM model are ensured.

The invention discloses a BIM technology-based integrated pipeline overall assembly method, which comprises the steps of creating a BIM model according to a drawing, then carrying out collision detection, and carrying out collision check by utilizing the BIM model, thereby being convenient, rapid, high in efficiency and low in error rate; carrying out three-dimensional visual disclosure on construction personnel by utilizing the BIM model, visually displaying the construction process, and ensuring that technical disclosure is in place; splitting the created model; after comprehensive pipeline segmentation is completed, carrying out pipeline and support coding, completing output of a material detail list and output of a machining drawing, carrying out accurate ordering according to the material detail list and the machining drawing, wherein material losses are low; enabling all pipelines to be subjected to factory prefabrication and assembly construction, so that the construction efficiency is improved; and transporting comprehensive pipelines in place at a time and installing the pipelines at a time, manpower, so that material resources and construction cost are saved, and the construction period is guaranteed.

The invention belongs to the field of curtain wall construction, and discloses a BIM-based curtain wall engineering refined construction method and system, a terminal and a medium. The method comprises the following steps: building a three-dimensional model of a building through the BIM technology and software; presetting the outer surface of the building; building a three-dimensional model of the curtain wall by using BIM software, and building a curtain wall construction model and a matched process family; by means of the scaling technology of BIM software, refining the curtain wall structure, and drawing a construction drawing in detail for special nodes; and establishing a BIM model, carrying out collision check, and optimizing and modifying a conflict part. The BIM software is used to schedule the curtain wall construction period. The construction cost of the curtain wall is simulated to predict. And a corresponding budget report is generated. According to the invention, the optimization of construction resources and scientific and reasonable site arrangement can be realized, the construction progress arrangement of the whole project can be optimized, and resource management and quality control can be optimized.

The invention discloses a distributed online integrated three-dimensional design method and system for a power plant. The method comprises: reading a main power plant structure model and a power plantequipment model in an associated mode through three-dimensional view software for integrated processing and pipeline connection and collision checking; performing preliminary stress calculation on the pipeline model; in the three-dimensional capital raising stage, carrying out trepanning capital raising, load capital raising and cable bridge matching processing, carrying out main building structure adjustment on the main workshop structure model, and carrying out design modeling and adjustment on supports and hangers; automatically generating buried iron at the root of the support hanger, andexporting related information of the buried iron; adjusting and optimizing the target pipeline, and automatically extracting to generate an ISO graph and a support hanger graph; and automatically carrying out material statistics to export a material list. According to the invention, the pipeline and the equipment are divided into a plurality of files to be designed in the design software respectively, and are integrated through the drawing viewing software, so that the problems of low efficiency, uncontrollable collision and incapability of multi-person collaborative design in the design process of the thermal power plant are solved.

The invention discloses a comprehensive pipeline design construction method based on a BIM technology. The method comprises the steps that of creating a three-dimensional comprehensive pipeline modeland a matched process family for a building according to a comprehensive pipeline design drawing and based on the BIM technology; performing collision check on pipeline models related to the buildingmajor, the structure major and the electromechanical major, and optimizing pipeline design arrangement and a construction process; performing clearance design deepening and support-hanger design deepening on comprehensive pipeline arrangement according to a collision check result; providing a comprehensive pipeline arrangement construction drawing, a wall tapping position and size construction drawing and a support-hanger design construction drawing according to a pipeline model of the mechanical and electrical major; and making a technical disclosure of virtual animation simulation for guiding on-site construction, thereby assisting managers and operators in performing on-site comprehensive pipeline construction. According to the method, all professional pipelines are comprehensively designed on the basis of the building BIM model, design is optimized, actual construction is guided, construction cost is reduced, a construction period is shortened, and construction operation efficiencyis improved.

A numerical controller of a processing machine determines corresponding setpoint axis values based on setpoint position values for position-regulated axes operating on machine elements. Before controlling the position-regulated axes, volumes to be occupied by protection bodies associated with the machine elements, a workpiece and a tool are defined and it is checked whether the protection bodies remain disjoint while controlling the position-regulated axes. Depending on the result of the checks, the controller either controls the position-regulated axes in accordance with the setpoint position values or merely executes an error response without control. The controller contains a position error field which specifies for any given setpoint axis value an actual position the tool relative to the workpiece. The position error field is taken into consideration, at least for a subset of the protection bodies, when defining the volumes to be occupied by the protection bodies upon activation of the position-regulated axes.

The invention relates to a construction method for an accurately pre-buried junction box based on BIM and an aluminum alloy formwork. The construction method comprises the following operating steps that (1) the BIM technology is utilized, civil engineering and mechanical and electrical installation models are established, position, functionality and collision checking is conducted, and a mechanical and electrical installation construction drawing is deeply optimized; (2) according to a deeply-optimized construction blueprint, a BIM model is established, the splicing dimension, position and sequence of the aluminum alloy formwork are determined, and the aluminum alloy formwork with the determined splicing dimension is subjected to factory sizing manufacturing; (3) through junction box position information recorded by the BIM model, positioning clamp plates are manufactured on the aluminum alloy formwork while sizing manufacturing is conducted; and (4) during the construction stage of aluminum alloy formwork installation in concrete wall body construction, the junction box is installed according to the positions of the positioning clamp plates, and when concrete wall body construction is completed and the aluminum alloy formwork is dismantled, the junction box is accurately reserved in a concrete wall body. The invention further relates to the aluminum alloy formwork with the accurately pre-buried junction box, and the pair of positioning clamp plates are arranged on the inner side face of the aluminum alloy formwork.

The invention relates to a weld joint expression method based o. The method is used for expressing information of weld joints among parts in a workpiece, and comprises the following steps of: S1, establishing a three-dimensional model of a workpiece in three-dimensional design software, and carrying out collision check on part models in the three-dimensional model to obtain a closed geometric wireframe; formulating a screening condition, and screening out a geometric wireframe needing to be calculated; formulating a weld joint model generation rule, and obtaining a weld joint model on a geometric wireframe needing to be calculated; S2, generating a weld joint node on each weld joint model, and storing a welding information table in each weld joint node, wherein the welding information tables at least comprise parameter items such as weld joint types, weld joint stages and weld joint lengths; S3, editing welding information tables of all the weld joint models, and determining numericalvalues or information of parameter items in the welding information tables; and S4, formulating a weld joint color display rule, classifying the weld joint models according to the weld leg heights ofthe weld joint models, and displaying the weld joint models by adopting different colors for different classifications.

The invention discloses a therapeutic head efficient anti-collision mechanism. The therapeutic head efficient anti-collision mechanism comprises a mounting substrate, anti-collision checking ring, a switch assembly, a horizontal pushing assembly and a vertical pushing assembly; the mounting substrate is an annular flat plate; the anti-collision checking ring is of a circular cover-shaped structure; a concentric circular hole is machined in the bottom surface of the anti-collision checking ring; the diameter of the circular hole is greater than the inner diameter of the mounting substrate; the mounting substrate is movably connected with the anti-collision checking ring through the horizontal pushing assembly and the vertical pushing assembly; the switch assembly is fixedly connected onto the mounting substrate; and the horizontal and longitudinal displacement of the anti-collision checking ring can both trigger the switch assembly. The therapeutic head efficient anti-collision mechanism can transmit signals to a device control system when a therapeutic head is squeezed.

The invention relates to an outdoor three-dimensional integrated pipeline threshold detection method for an urban rail transit depot. The method includes: (1) extracting pipeline information, and extracting a current model and pipeline starting point, terminal point and pipe diameter information in an additional reference model in the current model in outdoor three-dimensional integrated pipeline design data of the urban rail transit depot; (2) calculating information of the outdoor three-dimensional integrated pipeline design data of the urban rail transit depot by adopting a soft collision detection algorithm; (3) outputting a soft collision result of detected information; (4) visually displaying the soft collision result. By the technical scheme, soft collision detection can be performed on outdoor three-dimensional integrated pipelines of the urban rail transit depot in three-dimensional software effectively, efficiency in work design is improved greatly, accuracy is high, and abandoned pipeline construction work is completely eradicated.

The invention discloses an H-type 100-meter cable pylon line type control and rapid construction method, belonging to the technical field of bridge construction. The technical problem to be solved isto provide an H-type cable pylon linear control and rapid construction method; The technical scheme adopted to solve the technical problem is as follows: including the following steps: modeling calculation, BIM collision checking; Model adjustment and optimization; Integral hoisting of prestressed members of rigid frame; Install positioning cable guide tube; Install main reinforcement; Hydraulic climbing formwork frame body climbing; Install stirrups and embedded parts; Tensioning of prestressed members in the previous section; Install template; Concrete pouring; The H-type 100-meter cable pylon line type control and rapid construction method improves the construction quality and the construction efficiency of the tower column of the cable-stayed bridge.

A method, medium and apparatus determining whether models collide with each other. In the model collision detecting method, medium and apparatus, it is possible to quickly examine whether models collide, and to recognize the collision generated at an arbitrary time, which is not a predetermined collision check time of the models, without missing the recognition of the collision generated at the arbitrary time, by determining whether paths reflecting movement of the model primitives between the current time and a previous time overlap when the model primitives do not collide at the current time, determining whether the model primitives collide with each other at an arbitrary time between the current time and the previous time when the path primitives overlap each other, and recognizing that the models collide with each other at the arbitrary time when the model primitives collide with each other at the arbitrary time.

The invention provides a BIM model-based building engineering cost control system, which comprises a design system, a construction system and an operation and maintenance system. The design system comprises an analysis module, an inspection module, an acquisition module and a design collaboration module which are connected in sequence. The construction system comprises a collision checking module, a simulation construction module and a three-dimensional rendering module which are connected in sequence. The operation and maintenance system comprises a space management module, a facility management module and a hidden project management module which are connected in sequence, and the space management module is used for obtaining space position information of fire fighting equipment and converting the space position information into a three-dimensional graphic position; the facility management module is used for maintaining various facilities; and the hidden project management module is used for acquiring pipeline information based on a BIM model, and carrying out maintenance or equipment replacement on a damaged pipeline or line. According to the invention, the problem that the existing project cost management and control precision and efficiency are not high is solved.

The invention discloses a BIM technology-based railway continuous beam prestressed pipeline accurate positioning method, which relates to a railway bridge prestressed pipeline positioning method. Themethod is invented mainly for solving the problem that at present, prestressed steel beam space positioning is based on a two-dimensional design drawing, and deviation is likely to occur in continuousbeam construction. Based on a drawing, a complete engineering model and a database are established according to construction procedures and system coding requirements, a BIM model adopts Tekla software for modeling, and an IFC general format is exported by utilizing the BIM model and transmitted to Navisworks. And through Navisworks display software, three-dimensional display of components is carried out on the bridge engineering, and meanwhile three-dimensional collision inspection is achieved. Programming is conducted through C# language to realize one-key output of the spatial coordinatesof the prestressed steel beam. Setting out and positioning rib welding are conducted according to the accurate positioning coordinates of the prestressed pipeline output by the BIM model and a BIM simulation positioning scheme. The method has the advantage of reducing building quality problems.