84 results about "Planar graph" patented technology

The invention discloses a building plane element recognition method based on a graph neural network and a convolutional neural network, and belongs to the technical field of building plane element recognition. The identification method comprises the following steps: inputting a building plane pixel image, and carrying out preprocessing through image layer screening and information extraction to obtain a binary pixel image; vectorizing the binarized pixel image to obtain a vectorized image; performing image segmentation on the vectorized image; using the segmented vectorized image to construct a regional adjacency graph; performing regional adjacency graph optimization on the regional adjacency graph through graph analysis and regional merging by using a graph neural network, and identifying a room edge; calculating the area of the room; using the convolutional neural network image recognition model to recognize articles in the room; and performing room function prediction according to an identification result. According to the method, the problem of shape blurring caused by convolution in a traditional method is avoided. The graph neural network model training effect is improved, and the classification accuracy is improved. The method is suitable for various planar graph styles and is high in universality.

The invention discloses a distributed urban and rural planning decision support method and system, and relates to the technical field of data analysis, and the method comprises the following steps: S100, drawing a planar graph of a to-be-planned region, dividing the planar graph of the region according to a Morse decomposition method, and constructing a region matrix, S200, calculating the coverage rate of the region matrix, and S300, calculating the coverage rate of the region matrix. And planning the surveying and mapping path. According to the method, planning units and surveying and mapping grids are unified into the same quadrilateral matrix through Morse complex, repeated zoning and edge matching errors are effectively avoided, the edge weight is inversely proportional to the building coverage rate, an unmanned aerial vehicle and a surveying and mapping vehicle automatically and preferentially encrypt a high built-up area, field working hours are saved, the data precision of a core construction area is guaranteed, and the construction efficiency is improved. The regional matrix naturally corresponds to edge nodes, and each node only communicates with an adjacent unit, so that the MST and the local route can be locally solved, the communication complexity is reduced, and the method is suitable for large-scale regional surveying and mapping.

The invention relates to the technical field of image detection, can be applied to business system platforms of financial science and technology, medical health and the like, and discloses a method, a device, equipment and a medium for generating a three-dimensional scene based on a planar graph, and the method comprises the steps: obtaining a data set, and carrying out the multi-modal feature extraction and preprocessing of the data set, and obtaining structural data; performing modal alignment on the structured data to obtain fusion data in a unified feature space; performing three-dimensional scene prediction on the fused data by using a preset autoregression converter architecture to obtain a three-dimensional scene prediction result; carrying out loss calculation and parameter optimization iteration on the autoregression converter architecture according to a three-dimensional scene prediction result to obtain an optimization model; and constructing the preset plane graph into a three-dimensional scene by using the optimization model. The problems of accuracy and efficiency in generation of a three-dimensional scene based on a planar graph in the prior art are solved.

The invention relates to the technical field of virtual training, in particular to a firefighter search, rescue and escape virtual training method and system, and the system comprises a virtual scene dynamic construction module which abstracts a room and a corridor intersection into nodes according to a planar graph of a building, abstracts a door and a channel into edges with geometric distance weights, and carries out the virtual scene dynamic construction module; and responding to a fire spreading or structure collapse event in the virtual training, adjusting the weight of a corresponding edge to be infinite, obtaining a shortest path, and establishing a reference rescue path set. According to the method, through dynamic analysis of building plan structure information, rooms and corridor intersections are abstracted as nodes, doors and channels are abstracted as edges with geometric weights, the accessibility of the edges is adjusted in real time after fire spreading or structure collapse occurs, impassable conditions are introduced during path calculation, and the path calculation accuracy is improved. And the real-time adaptability and rescue simulation precision of the path generation process are improved.

The invention relates to a navigation method for a bodybuilding robot in a large-scale environment and a storage medium. The method comprises the following steps: firstly, dividing an environment map of a plurality of environments into a plurality of sub-maps, and constructing a hierarchical topological map based on a satellite navigation map and a building floor planar graph; and then, planning a path of the body-equipped robot based on the hierarchical topological map. And then controlling the robot with the body to start from the starting node, and when the robot with the body arrives at the switching node, switching the sub-map of the current environment to the sub-map of the next environment according to the cross-environment navigation strategy until the robot with the body arrives at the destination node. According to the method, complex space navigation is simplified into a graph search problem of node connection, so that the calculation complexity of path planning is greatly reduced, and the navigation path of the robot with the body has continuity and smoothness during cross-environment, so that the navigation efficiency of the robot with the body in a large-scale environment is improved.

The invention relates to the field of engineering construction, and discloses a water plant pool wall construction simulation method, device and equipment and a storage medium, the method comprises the following steps: carrying out collision check on a structure model, a building model, a process model, a deodorization pipeline model and a scaffold model in a BIM model to obtain collision points in the BIM model; obtaining collision information corresponding to the collision point, in the collision information, obtaining a pipeline colliding with the wall body in the BIM model, adjusting the position or path of the pipeline, obtaining a pipeline bypassing the wall body, replacing the pipeline colliding with the wall body with the pipeline bypassing the wall body, and selecting the BIM model using the pipeline bypassing the wall body as a modified BIM model; and in the modified BIM model, obtaining a planar graph, a profile graph or an elevation graph of the water plant pool wall, selecting the planar graph, the profile graph or the elevation graph of the water plant pool wall as a target graph of the water plant pool wall, and selecting the target graph added with the construction information as a construction graph of the water plant pool wall. The overall process is simplified, and the construction efficiency is improved.

The invention provides a three-dimensional sedimentary facies modeling method and device based on planar graph constraint, and the method comprises the steps: loading a sedimentary facies graph and a thickness graph to a three-dimensional space, projecting a planar graph to an oil reservoir grid through space coordinate transformation, and coarsening the planar graph into an oil reservoir grid surface attribute; establishing a rapid sedimentary facies model by utilizing the plane sedimentary facies diagram, and establishing lithologic probability volume data by utilizing the plane thickness diagram and through coKriging interpolation; and the logging sedimentary facies data serve as hard data, the rapid sedimentary facies model serves as spatial constraint, the probability body serves as trend constraint, and a sequential indication simulation algorithm is utilized to generate the sedimentary facies model. According to the three-dimensional sedimentary facies modeling scheme based on the planar graph constraint provided by the invention, information such as the logging facies, the planar facies and the thickness graph is comprehensively utilized, the understanding of geologists can be introduced between wells, the problems of mathematics and datamation of a conventional method are solved, and the precision of a sedimentary facies model is improved.

The invention discloses an automatic building plan generation method and system based on three-dimensional point cloud. The automatic building plan generation method comprises the following steps: acquiring three-dimensional point cloud data of a house; preprocessing the three-dimensional point cloud data to obtain a residence model; performing projection slicing on the residence model; carrying out region growth segmentation on the projection slice image; establishing a topological structure between the straight lines obtained by fitting in the projection slices by using a division result of region growth segmentation; and generating a house type diagram of the house by using the topological structure. The method is combined with a traditional method and a deep learning technology, has high universality, and can adapt to various room structures and complex scenes; through the RANSAC fitting technology, the accuracy of straight line detection is remarkably improved, the method can be used for refined design, and the residence measurement efficiency and the user experience of home decoration scenes are improved.

The invention discloses an intelligent drawing output method and system based on three-dimensional model integration. Comprising the following steps: constructing a cross-platform three-dimensional model analyzer, analyzing three-dimensional model files from different sources, and generating a three-dimensional model general assembly scene graph; performing bounding box analysis on the final assembly scene graph, and determining graph parameters; generating an initial project plane graph according to the parameters, and performing contour integrity detection to obtain a detection result; performing defect completion according to a detection result to generate a complete project plane graph; and finally, performing automatic graphic labeling on the planar graph, and outputting a two-dimensional drawing of the target project. According to the method, multi-source three-dimensional model data can be efficiently integrated, rapid and accurate output of two-dimensional drawings is achieved, the design efficiency and the intelligent level are improved, and the method has high practical value and application prospects.

The invention provides a method and system for identifying a volcanic institution facies belt boundary, and belongs to the technical field of oil exploration and development. The method comprises the following steps: dividing a drilled facies belt according to three-dimensional seismic reflection characteristics and a preset type of lithofacies proportion of a drilled well; constructing a near-source facies belt pseudo well and a far-source facies belt pseudo well based on the division result of the drilled facies belt and the multiple types of drilled lithofacies; based on the near-source facies zone pseudo well and the far-source facies zone pseudo well, determining a value range corresponding to a preset type of lithofacies proportion of the volcanic institution; based on the three-dimensional seismic data volume of the volcanic institution, a planar graph representing a facies belt is obtained; according to the value range corresponding to the preset type lithofacies proportion of the volcanic institution, volcanic institution facies belt division is carried out on the planar graph representing the facies belt, and the boundary between the near-source facies belt and the far-source facies belt is obtained. Therefore, the boundary between the near-source phase belt and the far-source phase belt is accurately and effectively defined, the near-source favorable phase belt of the volcanic institution is quickly focused, and a foundation is laid for an exploration target.

The invention provides a livestock building temperature data fusion monitoring method, a livestock building temperature data fusion monitoring device and electronic equipment. The livestock building temperature data fusion monitoring method comprises the steps of acquiring temperature data acquired by a multi-source sensor network, heating equipment power and nursing period animal space density in real time; and constructing a topological network based on the obtained animal husbandry building planar graph, taking each temperature sensor as a node in the topological network, and calculating an effective path distance between all temperature sensor node pairs. Dynamically calculating a heat source influence factor based on the power of heating equipment and the space density of the animals in the nursing period; and inputting the effective path distance and the heat source influence factor into an improved geographically weighted regression model to obtain a composite weight. And performing fusion processing on the temperature data by using the composite weight to generate a temperature distribution diagram. And local space autocorrelation analysis is carried out on the temperature distribution map, and a temperature anomaly aggregation area in the livestock building is positioned as a temperature data fusion monitoring result. The defect that a traditional temperature monitoring method is insufficient in precision in a spatial heterogeneity environment is effectively overcome.

Quantum networks having topologies defined by connected entanglement graphs which comprise plural vertices connected by plural edges are disclosed. The entanglement graphs are not all-to-all connected. The entanglement graphs may be non-planar graphs. At least some of the vertices are connected to three or more of the edges. Nodes of the quantum network correspond to vertices of the entanglement graph. Entanglement means are operable to directly entangle quantum systems in those pairs of the nodes which respectively correspond to vertices of the entanglement graph that are connected by an edge of the entanglement graph. Optical paths used by the entanglement means may include optical paths provided by braids or knots that are configured to interface to one or more units which include the nodes.

The invention discloses a costume style duplicate checking method, device and equipment and a medium, and relates to the technical field of costume numeralization. The costume style duplicate checking method comprises the steps that costume information to be checked is acquired, the costume information comprises a costume source design drawing, then a costume three-dimensional source design drawing is generated based on the costume source design drawing, and the costume three-dimensional source design drawing comprises labels; performing style optimization, color optimization and label optimization on the garment three-dimensional source design drawing to obtain a preliminary garment style drawing; performing duplicate checking operation based on a clothing style element point database according to the preliminary clothing style drawing and the optimized label to obtain first similarity information, the clothing style element point database being established according to a clothing line draft drawing and a planar graph; and outputting the clothing style information with the first similarity information greater than or equal to a preset threshold value. By executing the operation, the missed judgment and misjudgment rate of costume duplicate checking can be reduced, and the costume style duplicate checking precision and accuracy are improved.

The invention provides a general plane graph color migration method and system based on a depth diffusion model, and the method comprises the following steps: (1) carrying out the semantic segmentation of a black and white general plane line draft graph, and generating a semantic mask graph; (2) extracting global style features of the color general plane reference image and local color distribution features of different semantic regions; (3) inputting color features of the line draft image, the semantic mask image and the reference image into a depth diffusion model, restraining the structure of the generated image to be consistent with that of the line draft through a ControlNet module, and migrating the color features of the reference image to a corresponding position of the line draft according to a semantic region through a region perception attention mechanism; and (4) in the de-noising process of the diffusion model, combining the style consistency loss function and the regional color histogram matching loss to generate an image after color migration. According to the method, the color of the reference picture is migrated to the black-and-white line draft according to the semantic region, meanwhile, the line draft structure is kept complete, and the requirement for rapid personalized drawing can be met.

The invention discloses a cross-belt sorting system and method based on visual monitoring, and relates to the technical field of logistics sorting, and the method comprises the steps that a data acquisition and processing module obtains the operation data of cross-belt sorting equipment in a target area in real time, and dynamically evaluates the operation state of the equipment; the visual monitoring module obtains the actual spatial layout of the equipment, constructs a visual planar graph, maps the visual planar graph to the planar graph through color coding in combination with the operation state of the equipment, and constructs an equipment operation state dynamic updating graph; the key operation index module obtains key operation indexes of the equipment by using a sliding time window technology; the early warning and decision support module sets a dynamic threshold value, automatically triggers a grading early warning system, couples atlas to highlight and display abnormal equipment, and generates an equipment preliminary optimization suggestion; the operation cockpit module integrates multi-dimensional data of a graph, key operation indexes, early warning information and personnel performance, an integrated operation cockpit view is constructed, and a cross-belt sorting scheme of visual monitoring is completed. According to the invention, the monitoring manpower is saved.

The application provides a safety area configuration method of a laser radar, an electronic device and a storage medium. The method comprises the following steps: generating a two-dimensional grid in a rectangular coordinate system on a display terminal; obtaining a first mapping relationship according to the two-dimensional grid and a field of view angle range of the laser radar; obtaining configuration parameters of at least one planar graph input by a user and a preset monitoring distance corresponding to each planar graph; screening the two-dimensional grid according to the configuration parameters of each planar graph and a grid coverage condition to obtain a plurality of first unit cells corresponding to each planar graph; obtaining a first unit cell set according to the plurality of first unit cells corresponding to each planar graph; obtaining a three-dimensional safety area corresponding to the laser radar according to the first unit cell set, the preset monitoring distance corresponding to each planar graph and the first mapping relationship; and displaying the three-dimensional safety area on the display terminal. The method is beneficial to improving the setting accuracy and the visual effect of the three-dimensional safety area.

The invention discloses a design information filling method and device of a three-dimensional model and electronic equipment. The method comprises the following steps: generating at least one first component based on at least one pixel contained in a two-dimensional plane graph; under the condition that a first target component in the at least one first component is successfully matched with the three-dimensional model, establishing an association relationship between a first pixel corresponding to the first target component and the three-dimensional model; and based on the association relationship, filling the three-dimensional model with the design information contained in the first pixel, thereby achieving the purpose of reducing the design information for filling the three-dimensional model, achieving the technical effect of improving the design information filling efficiency of the three-dimensional model, and improving the design information filling efficiency of the three-dimensional model. Therefore, the technical problem of low filling efficiency of the design information of the three-dimensional model is solved.

The invention relates to the technical field of energy distribution, and solves the technical problems that in the prior art, a traditional system often regulates and controls a whole building, neglects regional functions, easily causes supercooling and energy waste, controls start and stop according to a fixed time table, cannot respond to dynamic factor regulation and control lag and is poor in economical efficiency. The method comprises the following steps: S1, obtaining a planar graph of each floor of a target building, and deploying a plurality of data acquisition points for carrying out multi-position multi-dimensional data dispersion acquisition on the target building, according to the method, through the self-attention mechanism model and the one-dimensional convolutional network model, finer modeling is realized, the prediction precision is remarkably improved, the relevance of a modeling area is improved through the improved graph attention network model, optimization and updating are automatically performed, the universality and the adaptability of the method are enhanced, curve smoothing prediction is performed on a result, and the prediction accuracy is improved. And the stability of prediction results is improved.

The present application provides a method, device, electronic device, and storage medium for processing virtual roads. A graphical user interface is provided by a terminal device. The graphical user interface includes at least a part of a game scene, a player's virtual vehicle, and a mini-map corresponding to the game scene. The mini-map is a planar graph. The method includes: responding to a driving operation for the player's virtual vehicle, controlling the player's virtual vehicle to perform a moving action corresponding to the driving operation; in response to the movement of the player's virtual vehicle in the game scene, obtaining terrain prompt information of a first virtual road at the position where the player's virtual vehicle is located after moving; and displaying a second virtual road with terrain prompt information on the mini-map. Using the present application can improve the intuitiveness and richness of the information presented on the mini-map in a racing game, and at the same time avoid excessive data processing involved in updating the mini-map, thereby improving the player's gaming experience.

The application discloses a flyover twin automatic mapping method based on ramp planar pattern templates, which comprises the following steps: 1, establishing a flyover ramp information table TTABLE; 2, establishing a basic graphic element information table IFTABLE of road alignment; 3, defining a line type combination of the ramp; 4, establishing a single-ramp line type template and a state information table STTABLE; 5, storing a flyover sample to form a case library; 6, selecting a flyover template; 7, setting a generation priority of the ramp; 8, solving an initial value of the state information table; 9, instantiating a single-ramp; 10, after completing the drawing of all center lines of the flyover plane, the flyover road width boundary design is continuously completed according to a planar design method. The application can make the flyover shape selection process closely combine the flyover planar graph of the case library, so that the time for learning reference materials of a designer is reduced, the learning difficulty is lowered, and the effect of fast operation is realized.

The invention discloses a closed spline CNC machining tool path algorithm, and aims to provide a tool path algorithm which can be suitable for tool path calculation of any plane figure, and a corresponding machining path can be automatically generated by inputting a profile curve of a workpiece, a cutting depth and a tool radius. According to the closed spline CNC machining tool path algorithm, a closed spline graph machining tool path can be rapidly and conveniently adjusted on an industrial site. The method comprises the following specific steps: S1, defining a data structure; s2, calculating vectors of adjacent points; s3, unit vector normalization is carried out; s4, calculating a new target point; and S5, traversing the contour to generate a new curve. The method is applied to the technical field of turning machining.

The embodiment of the invention provides a fractured anticline structure area fracture direction step-by-step rapid judgment method and device, and the method comprises the steps: firstly collecting core data, logging data, electric imaging logging data and other data, and completing small layer division comparison and fracture direction planar graph and profile graph based on electric imaging logging; and based on the relationship between the crack direction and the fault direction, dividing the crack into a fault-related crack and a wrinkle-related crack. Further, the directions of the two types of fractures are judged respectively, and the directions of the fractures related to the fault are judged according to the position plane relation between the fractures related to the fault and the fault; and for the fold-related crack, judging the direction of the fold-related crack according to the longitudinal relationship between the fold-related crack and the neutral surface. The method can be used for cracks with different scales, is simple to operate, and can quickly judge the crack directions of different structural parts.

Polygonal shapes can be generated automatically from an example using a graph grammar. The graph grammars can then be used to generate graphs that are locally similar to a given example. An input shape can be disassembled into small pieces called primitives and then the primitives can be reassembled into new graphs. All possible locally similar graphs can be organized into a graph hierarchy and then matching graphs can be found within the graph hierarchy. These matches are used to create a graph grammar that can construct every locally similar graph. The graphs can be generated using the graph grammar and then converted into a planar graph drawing to produce the final shape.

The invention discloses an intelligent filling system and a filling method, and relates to the technical field of intelligent filling, a pressure sensor is adopted to monitor whether a container enters a filling table or not, and a terminal is triggered to generate a detection instruction; a camera cluster is used for collecting images, the position relation between a filling opening and a container opening is extracted, a standard and a to-be-filled planar graph are fitted and verified, and the filling condition is determined; if normal, constructing a panoramic image of the container, determining the capacity and the filling amount, and executing filling; the system comprises a data acquisition module, a data storage module and a data processing module. The pressure sensor and the camera cooperate, the filling process is accurately controlled through the image processing technology, the filling precision and efficiency are improved, the device is suitable for various containers, manual intervention is reduced, and the production automation level is improved.

The invention relates to the technical field of industrial automation and clean energy, and discloses a pneumatic type coal blockage dredging pulse airflow precise cooperative control method, which comprises the following steps: dispersing a coal blockage area as a virtual blockage block, defining pulse nozzle parameters to establish a control parameter set, establishing an interaction relationship matrix through fluid dynamic simulation and experimental calibration, and establishing a pulse nozzle flow control parameter set; establishing a dredging effect function; forming a planar graph by taking the virtual blocking blocks as vertexes and physical adjacency or mechanical association as edges, performing recursive separation based on a planar separation theorem to obtain sub-regions, distributing exclusive nozzle groups and combining collaborative boundaries; converting effect function calculation into a branch program, and reducing into a graph cutting width problem to solve an optimal pulse execution sequence; generating a new strategy through linear transformation, and determining whether to adopt after verifying the width; the sensor collects the coal blockage state in real time, calculates the gradient, updates parameters based on gradient rising, and repeats the process until blockage is removed or the gradient is converged. The purpose of reducing the influence of coal blockage of the coal bunker and the coal slipping pipe on the production efficiency and the equipment safety can be achieved.

1. Name of the Design Product: Graphical User Interface for Editing and Generating Floor Plan of Electronic Device 2. Use of the Design Product: For an electronic device 3. Design Key Points of the Design Product: Lies in the graphical user interface 4. Picture or Photograph Most Indicating the Design Key Points: Front View of Design 1 5. The electronic device has a conventional design, and other views of the electronic device are omitted 6. Design 1 is designated as the basic design 7. Use of the Graphical User Interface: For editing and generating floor plan in room measurement scenario and viewing legend 8. Human - computer Interaction Method of the Graphical User Interface: In the front view of Design 1, click on the lines representing doors and windows in the floor plan in the middle of the interface, and the interface jumps to the first interface change state diagram of Design 1; in the first interface change state diagram of Design 1, click on the "Edit Elevation" button on the pop - up window corresponding to any door or window, and the interface jumps to the second interface change state diagram of Design 1; in the front view of Design 2, click on the "Legend" button at the bottom of the interface, and the interface jumps to the interface change state diagram of Design 2; "XXX" in the above interfaces represents replaceable text and / or numbers, and the gray color blocks represent replaceable content images

The invention relates to the technical field of computers, and provides a point cloud-based planar graph generation method, device and equipment and a storage medium, and the method comprises the steps: obtaining to-be-detected point cloud three-dimensional data, and carrying out the two-dimensional projection of the point cloud three-dimensional data, and obtaining point cloud raster data; performing skeleton refinement on the point cloud raster data to obtain a skeleton diagram; processing the skeleton diagram to obtain gradient change characteristics, and detecting to obtain a wall line candidate line segment set based on the gradient change characteristics; obtaining a point chain topological relation graph based on the skeleton graph, and determining a connection relation of each wall line candidate line segment in the wall line candidate line segment set based on a preset wall line connection strategy by taking the point chain topological relation graph as a constraint model; generating final wall line data based on the connection relation of the candidate wall line segments; the wall line data is used for generating a plane graph. According to the method, the plane graph with high precision and good connection quality can be automatically generated.

The invention discloses a file-oriented IO strength visualization and evaluation system construction method and device and a medium, and relates to the field of file IO performance evaluation of operation. According to the method, the read IO strength, the write IO strength and the comprehensive strength of the read IO strength and the write IO strength are quantitatively analyzed, the difference between the indexes is compared and displayed, the mathematical model is utilized to perform weighted calculation on the indexes of different dimensions, and finally a comprehensive score is formed. Whether the IO design of each file in the operation is reasonable or not and whether a potential bottleneck exists or not can be accurately reflected, so that a scientific basis is provided for system optimization and resource scheduling; and meanwhile, a visual construction technology is introduced, and the processed data is visually presented in a planar graph mode, so that a user can clearly observe the distribution and the change trend of the IO strength of each file on a graphical interface at a glance.

The invention relates to the technical field of urban rail transit, and particularly discloses a method and a system for drawing a planar graph of an overhead flexible contact network of urban rail transit, a rail is divided into straight line sections and curve sections according to an existing line drawing, curve radiuses are obtained, and the maximum anchor section length of the contact network of each curve section is calculated according to the curve radiuses; and calculating and determining the optimal span value of each curve section, defining a pull-out value, setting and selecting a strut arrangement mode and a strut installation number according to the radius of the curve, and drawing a contact network plane graph by combining the anchor section length, the span value, the pull-out value and the strut arrangement and number which are obtained previously. According to the method, the plane graph of the flexible contact network can be rapidly drawn, the work amount statistics work is synchronously completed, the labor cost is reduced, and the time cost is saved.

The application provides an indoor planar graph construction method and system based on a smartphone sound wave ranging, belongs to the technical field of indoor design, emits a sound wave signal, receives a echo signal by two microphones of the smartphone, calculates the distance between the wall and the smartphone, obtains inertia data of the smartphone to track a moving track and identify an indoor connection area, combines the distance between the wall and the smartphone, a user track and the indoor connection area, and constructs an indoor planar graph by a map refinement algorithm. The application can complete the construction of the indoor planar graph based on the smartphone, reduces the construction cost of the indoor planar graph, improves the efficiency, does not need to shoot an indoor environment, is not affected by environmental illumination conditions, avoids the indoor privacy leakage of the user, adopts unilateral ranging, can still effectively complete the construction of the planar graph when the Batmapper cannot be normally used in a wide indoor environment, generates a more complete planar graph in a non-discrete point form, and is more in line with the real indoor structure.