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36 results about "Navigation mesh" patented technology

A navigation mesh, or navmesh, is an abstract data structure used in artificial intelligence applications to aid agents in pathfinding through complicated spaces. This approach has been known since at least the mid-1980s in robotics, where it has been called a meadow map, and was popularized in video game AI in 2000.

3D scene path finding method and apparatus

The invention discloses a path-seeking method for a 3D scene, which comprises: identifying area types of path nodes according to preset type marks, and obtaining similar adjacent area information which is the same with the area types of the path nodes through inquiry of preestablished path-seeking data; identifying whether the path nodes comprise different adjacent areas which are different from the area types of the path nodes according to the preset switch marks, and searching for prestored switching data containing different adjacent area information which is different from the area types of the path nodes if the path nodes comprise the different adjacent areas, and obtaining the different adjacent area information; and performing path seeking according to the similar adjacent area information and the different adjacent area information. The method realizes the search of the different adjacent area information so as to realize mixed use of path-seeking data in the mode of lattices and path-seeking data in the mode of navigation meshes in the 3D scene, thereby reducing the complexity and the data quantity of the path-seeking data and the overall path-seeking computation and the overall path-seeking computing speed when guaranteeing the path-seeking effect simultaneously. The invention simultaneously discloses a path-seeking device for the 3D scene.
Owner:BEIJING PIXEL SOFTWARE TECH

Method for flying at least two aircraft

Methods for flying at least two aircraft in a predetermined formation include emitting from one of the aircraft a relative navigation grid, calculating a spatial relationship, by a controller module, between the at least two aircraft, determining, by the controller module if the spatial relationship conforms with the predetermined formation, and altering a relative position of at least one aircraft when the spatial relationship does not conform with the predetermined formation.
Owner:GE AVIATION SYST LLC

Route generation method and device for three-dimensional game scene, and storage medium

ActiveCN110772791ASolve the technical problems of low production efficiencyImprove production efficiencyVideo gamesSimulationNavigation mesh
The invention discloses a route generation method and device for a three-dimensional game scene, and a storage medium. The method comprises the following steps of processing the terrain of a three-dimensional game scene by a target path-finding engine to obtain three-dimensional navigation grid data, and converting the three-dimensional navigation grid data into a first two-dimensional grid; determining a first type region and a second type region in the first two-dimensional grid, wherein the target path-finding engine is used to assist a virtual object in the first type region to succeed orfail in path-finding, and assist the virtual object in the second type region to fail in path-finding, wherein the first type region and the second type region are regions in which the virtual objectcan find paths in the three-dimensional game scene; communicating the first type region and the second type region to obtain a second two-dimensional grid; and generating a path-finding route in the three-dimensional game scene based on the second two-dimensional grid. According to the route generation method for the three-dimensional game scene provided by the invention, the effect of improving the generation efficiency of the path-finding route of the virtual object in the three-dimensional game scene is achieved.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Movement processing method and device of virtual object, electronic equipment and storage medium

The invention provides a virtual object movement processing method and device, electronic equipment and a computer readable storage medium. The method comprises steps of obtaining a corresponding moving mode when a target virtual object moves in a virtual scene; determining a target verification interface matched with the moving mode in the verification interface based on the physical geometric data of the virtual scene and the verification interface based on the navigation grid data of the virtual scene; and calling the target verification interface to verify the movement of the virtual object so as to form a corresponding movement verification result. The method is advantaged in that the movement of the virtual object in the virtual scene can be accurately and efficiently verified, and accuracy of human-computer interaction in the virtual scene is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Navigation grid updating method, device and equipment and computer readable storage medium

The invention provides a navigation grid updating method, a navigation grid updating device, navigation grid updating equipment and a computer readable storage medium, which are applied to various application scenes such as cloud technology, artificial intelligence, intelligent transportation and vehicle-mounted application scenes. The navigation grid updating method comprises the following steps: acquiring a to-be-updated area with scene change in a virtual scene; performing model detection in the to-be-updated area to obtain a physical model; carrying out geometric processing on the physical model to obtain to-be-processed grid data with a specified geometric shape; the to-be-processed grid data is subjected to navigation processing, a target navigation grid is obtained, the target navigation grid is used for determining a passable route in the to-be-updated area, and the specified geometric shape is a geometric shape corresponding to navigation processing; and updating a to-be-updated navigation grid corresponding to the to-be-updated area to the target navigation grid, the to-be-updated navigation grid being an original navigation grid corresponding to the to-be-updated area. According to the invention, the updating efficiency of the navigation grid can be improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Robot footprint planning method and device, readable storage medium and robot

The invention belongs to the technical field of robots, and particularly relates to a robot footprint planning method and device, a computer readable storage medium and a robot. The method comprises the following steps of performing global scanning on a specified target space by using a preset 3D visual sensor to obtain the depth information of the target space; performing three-dimensional reconstruction of the target space according to the depth information to obtain a voxelized terrain environment surface map of the target space; respectively dividing each walkable area in the topographic environment surface map; performing triangulation processing on each walkable area to obtain a three-dimensional navigation grid of the target space; and performing footprint planning of the robot according to the three-dimensional navigation grid and the biped joint kinematics constraint of the robot. Through the embodiment of the invention, the geometric attribute of the complex terrain surface can be accurately estimated, the consideration of the kinematics constraint of the biped joints of the robot is added during footprint planning, and the method can be directly suitable for the humanoidrobot.
Owner:UBTECH ROBOTICS CORP LTD

Generating routes using navigation meshes

Systems, apparatuses, and methods are provided for developing an improved route from a navigation mesh. A route is provided, wherein the route includes a plurality of connected nodes having a starting node, an ending node, and internal nodes. Each internal node of the plurality of connected nodes is scored by an algorithm, wherein the score provided for each internal node based on an importance of the respective internal node to the overall shape of the route. The internal node with a score having a least importance on the shape of the route is removed, so long a valid path between the starting node and the ending node is maintained. The process may be repeated until a threshold simplification of the route has been achieved or until no further internal nodes can be removed without creating an invalid path.
Owner:HERE GLOBAL BV

Navigation grid reconstruction method and device and storage medium

The invention provides a navigation grid reconstruction method and device and a storage medium, and the method comprises the steps: responding to a request of adding a dynamic block in a map, and obtaining voxel data of the dynamic block; and merging the dynamically blocked voxel data into the voxel data of the map, and reconstructing a navigation grid according to the merged voxel data. According to the embodiment of the invention, the corresponding shape voxel of the dynamic block is converted into the voxel data, then the voxel data and the map voxel data are merged, and the navigation grid is reconstructed according to the merged voxel data after merging, so that the shape of the dynamic block in the three-dimensional space can be accurately expressed, and the dynamic block can be naturally combined with the map; and therefore, the artificial intelligence body can plan the route according to the dynamic blocking shape.
Owner:多益网络有限公司 +2

Indoor navigation model construction and navigation method and system based on augmented reality

The invention discloses an indoor navigation model construction method based on augmented reality, and the method comprises the steps: obtaining an indoor environment map through collecting indoor environment data, building a virtual scene in a 3D graphic processing engine according to the indoor environment map, and determining the arrangement position of a positioning code in the virtual scene;and drawing a navigation grid area in the virtual scene, and constructing a navigation grid algorithm to obtain the augmented reality-based indoor navigation model. The embodiment of the invention further discloses an indoor navigation method based on augmented reality and a corresponding system, the indoor positioning precision is improved by effectively combining the augmented reality technologyand indoor navigation, the technology implementation cost and complexity are relatively low, and meanwhile, the use experience of a user during positioning and navigation can be effectively improved.
Owner:广州市申迪计算机系统有限公司

Navigation path determination method and device, equipment, storage medium and program product

The invention discloses a navigation path determination method and device, equipment, a storage medium and a program product, and relates to the technical field of computers. The method comprises the steps of obtaining a navigation grid chart marked with a first-level area and a second-level area, wherein the passage level of the first-level area allows a virtual object under each volume level to pass, the second-level area comprises a plurality of secondary second-level areas with different passage levels, and the maximum volume levels corresponding to the passage levels of the secondary second-level areas are different; and for a target grid corresponding to the target virtual object, obtaining a guide grid corresponding to the target grid, and determining a navigation path of the target virtual object between the target grid and the first-level area, wherein the target grid is located in the second-level area, and the passage level of the guide grid is greater than or equal to the passage level of the target grid. The navigation path between the first-level area and the second-level area is determined on the basis of the guide grid, it is ensured that the virtual object can reach without penetrating through a mold and a boundary, and then the reasonability of the navigation path is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Three-dimensional path-finding navigation method and system for nuclear power plant

The invention relates to a three-dimensional path-finding navigation method and system for a nuclear power plant. The three-dimensional path-finding navigation method for the nuclear power plant comprises the following steps: utilizing PDMS modeling to obtain a three-dimensional arrangement model of the nuclear power plant; constructing a three-dimensional virtual scene of the nuclear power plant according to the three-dimensional arrangement model of the nuclear power plant by using a Unity 3D virtual simulation engine, and in the three-dimensional virtual scene, dividing a plant by layers, and setting relay points in each layer so as to bake a navigation grid layer by layer; and in the three-dimensional virtual scene, positioning a target item input by a user, receiving a starting point and an ending point set by the user, carrying out path-finding calculation in the three-dimensional virtual scene based on the hierarchical navigation grid, and carrying out dynamic navigation demonstration of an optimal path according to a path-finding calculation result. By implementing the technical scheme of the invention, the user can quickly and accurately reach the target point, and the working efficiency is improved.
Owner:中广核工程有限公司 +3

Path finding method and device for virtual object in game and electronic equipment

The invention provides a path finding method and device for a virtual object in a game and electronic equipment. The method comprises the steps: obtaining position information of a virtual object in a game, wherein the position information comprises the initial position and the target position of the virtual object in a game scene; generating a navigation grid map corresponding to the game scene in real time according to the position information and the game scene; and determining the target path from the initial position to the target position based on the navigation grid map. Compared with an existing two-dimensional grid-based path-finding method, the method has the advantages that the determination efficiency of the target path, namely the path-finding efficiency, is improved; and when the game scene is changed, the navigation grid map is generated in real time through the position information and the updated game scene, so that the accuracy of the target path is ensured, meanwhile, frequent scanning of the game map is avoided, the problem of excessive path finding consumption is relieved, and the method has a relatively good practical value.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Navigation grid updating method, device and system

The embodiment of the invention discloses a navigation grid updating method, device and system. The method is applied to a client, and the method comprises the following steps: if a target object in a current game scene is detected to be damaged, obtaining position information of the damaged target object, and determining a navigation grid generation request corresponding to the target object based on the target object position information and the target object identification information; sending the navigation grid generation request to an edge server in communication connection with the client so that the edge server generates a target navigation grid corresponding to the current game scene based on the navigation grid generation request, and sending the target navigation grid to the client; and receiving the target navigation grid, and updating the current navigation grid corresponding to the current game scene into the target navigation grid. Through the technical scheme of the embodiment of the invention, the navigation grid can be generated and updated in real time after the object in the game scene is damaged, pre-generation is not needed, time and labor are saved, and the size of a game bag body is also saved.
Owner:上海米哈游璃月科技有限公司

Navigation data processing method and device, storage medium and electronic equipment

PendingCN111659123AThe solution cannot be achievedThe problem of imperfect cutting realized by solver splicingVideo gamesComputer graphics (images)Engineering
The invention belongs to the technical field of data processing, and relates to a navigation data processing method and device, a storage medium and electronic equipment. The method comprises the following steps: acquiring an initial navigation grid of a game scene model, acquiring target position information of click operation acting on the initial navigation grid, determining a to-be-edited navigation grid in the initial navigation grid according to the target position information, receiving an editing function instruction for the to-be-edited navigation grid, editing the to-be-edited navigation grid according to the editing function instruction to obtain a target navigation grid and storing the target navigation grid of the game scene model. On one hand, the to-be-edited navigation gridcan be any polygon, the problem that imperfect cutting cannot be achieved or splicing is achieved is solved, and more accurate functions can be further achieved, and on the other hand, the editing mode is more automatic, unified modification and hot update are facilitated, and the input labor cost and time cost are reduced.
Owner:网易(上海)网络有限公司

Navigation path planning method and device

PendingCN113720342AEasy to moveSolve the problem that the path is not in the middle of the roadInstruments for road network navigationPathPingSimulation
The invention relates to a navigation path planning method and device, and is based on a navigation grid map. The navigation path planning method comprises the steps of obtaining a navigation starting point and a navigation ending point, taking the navigation starting point as a starting point, and obtaining a first path point by using a funnel algorithm; moving the first path point to the middle of the passable area to obtain a second path point, and connecting the starting point and the second path point to obtain a first path; determining passable areas from the starting point to the second path point, and determining whether the first path intersects with the common edge of each passable area or not under the condition that the passable areas are more than one; if not, adjusting the first path, and obtaining a navigation sub-path intersecting with the common edge. By means of the path planning method and device, the problem that a path generated through a path planning method based on a navigation grid map in the related technology is not in the middle of a road is solved, and the effect that a user moves along with navigation conveniently is achieved.
Owner:杭州易现先进科技有限公司

Game way-finding method and device, server and storage medium

ActiveCN112121435AHigh precisionRich navigation informationVideo gamesNavigation meshDistributed computing
The embodiment of the invention discloses a game way-finding method and device, a server and a storage medium. The method comprises the steps of obtaining the preset path-finding module; performing adaptation processing according to a preset path-finding module to obtain an adapted path-finding module; obtaining client grid data from a client; extracting preset navigation grid data from the clientgrid data; performing adaptation processing on the preset navigation grid data by adopting the adapted way-finding module to obtain adapted navigation grid data; performing game way-finding accordingto the adapted navigation grid data to obtain a way-finding result; and sending the path-finding result to a client to display the path-finding result. In the method of the invention, path finding iscarried out through the adapted path finding module according to the adapted navigation grid data, so that the path finding result of the server is more accurate. Therefore, the scheme can improve the accuracy of the game way-finding method.
Owner:TENCENT TECH (SHENZHEN) CO LTD

A maintenance path planning method and device for a nuclear power plant

The invention discloses a maintenance path planning method and device for a nuclear power plant. The method includes: according to the distribution of radiation zones and radiation hotspots in the nuclear power plant, making a three-dimensional digital nuclear power plant into a navigation grid required for path finding; according to a preset heuristic search algorithm, selecting a suitable maintenance path in the navigation grid , so that the maintenance personnel who pass the maintenance path receive the lowest radiation dose. In the present invention, by introducing radiation data information into the three-dimensional scene of the nuclear power plant, the dose level of maintenance exposure is used as the evaluation standard for path search, and the heuristic search method is used to automatically search for the path in the three-dimensional scene of the nuclear power plant. Under reasonable and as low as possible level conditions, it can effectively approach the maintenance target area, providing maintenance personnel with excellent maintenance path planning, and at the same time, it also greatly improves the efficiency of maintenance path planning, so that the maintenance of nuclear power plants can be carried out quickly and reliably.
Owner:CHINA NUCLEAR POWER DESIGN COMPANY +3

A robot footprint planning method, device, readable storage medium and robot

The present application belongs to the field of robotics technology, and in particular relates to a robot footprint planning method, device, computer-readable storage medium and robot. The method uses a preset 3D vision sensor to perform a global scan on a specified target space to obtain depth information of the target space; performs three-dimensional reconstruction of the target space according to the depth information to obtain voxels of the target space the terrain environment surface map; divide each walkable area in the terrain environment surface map; triangulate each walkable area to obtain the three-dimensional navigation grid of the target space; according to the three-dimensional navigation The mesh and the robot's bipedal joint kinematic constraints perform the footprint planning of the robot. Through the embodiments of the present application, the geometric properties of complex terrain surfaces can be accurately estimated, and consideration of the kinematic constraints of the bipedal joints of the robot is added to the footprint planning, which can be directly applied to humanoid robots.
Owner:UBTECH ROBOTICS CORP LTD

Personnel positioning and three-dimensional visualization fusion method and system

InactiveCN111028344AMake up for the inability to provide height informationGuaranteed reasonablenessInstruments for road network navigationTransmissionThe InternetEngineering
The invention discloses a personnel positioning and three-dimensional visualization fusion method and a personnel positioning and three-dimensional visualization fusion system, and belongs to the technical field of Internet. The method comprises the following steps: 1, establishing a three-dimensional model; 2, preprocessing a navigation grid; 3, preprocessing a coordinate system; 4, receiving personnel positioning data; 5, reading personnel positioning data; and 6, processing personnel positioning data. According to the method, the positioning data is processed based on the navigation grid, the defect that UWB positioning cannot provide height information can be overcome, obstacles can be dynamically avoided, the refreshing frequency of the own three-dimensional personnel model position is lower than the refreshing frequency of personnel positioning data, and the performance overhead is reduced; and in combination with a personnel positioning data processing algorithm, the rationality, the real-time performance and the consistency of the positioning effect can be ensured.
Owner:NANJING WEIJING SHIKONG INFORMATION TECH CO LTD

Method and device for generating blocking information, storage medium and electronic device

ActiveCN111714890AImprove efficiencyIncreased freedom of pathfindingVideo gamesComputer graphics (images)Collision detection
The invention discloses a method and device for generating blocking information, a storage medium and an electronic device. The method comprises the steps: recognizing a first scene object in a virtual scen, wherein the first scene object is an object, where space blocking information is to be generated, in the virtual scene; obtaining a collision detection result of the first scene object, the collision detection result being obtained by performing a collision test on the collision object and each part of the first scene object; and generating target space blocking information according to the collision detection result, the target space blocking information being used for describing a space attribute state of each part of the first scene object. According to the invention, the technicalproblem of low way-finding freedom degree caused by a navigation mode that a navigation grid is used in a related technical center is solved.
Owner:SHANGHAI PERFECT WORLD SOFTWARE CO LTD

Intelligent trolley carrying system and method for warehouse logistics

According to the intelligent trolley carrying system and method for warehouse logistics, the system comprises a ground navigation network formed by combining a plurality of navigation grids with the same size and a trolley moving along the ground navigation network, the ground navigation network comprises two transverse strips and two longitudinal strips, and the transverse strips and the longitudinal strips are arranged on the ground navigation network. A plurality of light sensors are arranged on a base of the trolley and used for recognizing the colors of the transverse strips or the longitudinal strips, pairing the colors with the color recognition information received by the pairing module and controlling the trolley to move along the successfully paired transverse strips or longitudinal strips through the control module. The trolleys with different routes are distributed according to different colors, the repeated routes of the trolleys can be effectively avoided, and in the moving process of the different trolleys, the transverse strips or the longitudinal strips can freely switch different colors to conduct staggered guiding, so that the guiding efficiency is improved. Different trolleys can be prevented from colliding without complex obstacle avoidance means, the number of the whole trolley can be larger, and the efficiency is better.
Owner:陈飞飞

Reality capture graphical user interface

A method, system, apparatus, and article of manufacture provide the ability to perform multiple actions based on a reality captured image. An adjustable splitter splits a viewport into viewing panes with the ability to freely adjust the splitter angle. A sphere represents a view of a scene from a viewpoint and used to render an interactive preview of the view without moving to the viewpoint. A series of 2D images may be used to simulate the navigation of a 3D model in an expedited manner. A 3D mesh error scroll bar is used navigate unsorted errors resulting from mesh creation. An interactive gradient map can be used to select a points based on a range of values for non-geometric parameters. An irregularly shaped mesh selection boundary can be directly modified by stretching. An elevation slice of a 3D model can be defined and isolated for viewing / manipulation.
Owner:AUTODESK INC
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