258 results about "Map making" patented technology

A method for simultaneously carrying out positioning and map-making by mobile robot at unknown environment includes setting-up current local occupation lattice map and local section map according to data obtained by distance-measurement transducer on mobile robot, estimating current period pose of mobile robot based on certain data and some set-up map, setting-up obtained local section map and local occupation lattice map according to pose estimation of current period mobile robot and updating global occupation lattice map and global section map.

An Agile-Beam Laser Array Transmitter (ABLAT) uses an array of emitters and an array of lenses to project electromagnetic beams over a wide angular coverage area in the far field. Differences in the separation pitches of the two arrays allows the ABLAT to project beams to contiguous and/or overlapping positions, depending on the ratio of the separation pitches and the lens focal length. Compared to other beam steering technology, the ABLAT is a smaller, lighter, and more efficient means of projecting beams over wider angular coverage areas. Various embodiments can be used in any beam steering application, including, but not limited to: free-space optical communications; light detection and ranging (lidar); optical scanning (e.g., retinal or bar-code scanning); display projection; image capture; optical character recognition; scanning laser microscopy; non-destructive testing; printing; facsimiles; map making; web inspection; color print processing; phototypesetting and platemaking; laser marking; material processing; DNA analysis; and drug discovery.

The invention discloses a manufacturing method of a multi-feature fusion map facing an autonomous vehicle. The method comprises the following steps: collecting data of each sensor by utilizing an on-board laser radar device; generating a three-dimensional point cloud map by utilizing IMU(Inertial Measurement Unit) data and laser measurement data; generating a visual feature map by utilizing the IMU data and camera data; preprocessing GPS data, and converting a geodetic coordinates into a spatial rectangular coordinates; performing global optimization fusion by utilizing a continuous time SLAM(Simultaneous Localization and Mapping) algorithm; and generating the multi-feature fusion map. According to the manufacturing method of the multi-feature fusion map, various sensor data of a laser radar, an IMU, a camera and a GPS, etc., are integrated, so that the stability and the accuracy are greatly improved; the data are processed by fusing a visual SLAM algorithm and a laser SLAM algorithm,thereby obtaining a better composition effect than a single visual SLAM algorithm or a single laser SLAM algorithm; and the method is simple, practical and low in cost, and the map produced is accurate and rich in attributes, thereby improving the safety of the driving process of the autonomous vehicle.

The invention discloses a hyper-spectral image classification method based on recurrent neural network with the object to solving the problems that in prior art, the input characteristic determination ability is weak and that the extraction of local spatial characteristics is not complete. The method comprises the following steps: 1) extracting the spatial texture characteristics and the sparse representation characteristics of a hyper-spectral image and piling and combining them as the low-level characteristics; 2) extracting from the low-level characteristics the sample local spatial sequence characteristics; 3) according to the local spatial sequence characteristics, creating a recurrent neural network model; and utilizing the training sample local spatial sequence characteristics to train the recurrent neural network model parameters; and 4) inputting the testing sample local spatial sequence characteristics into the well-trained recurrent neural network model; obtaining the highly abstract high-level semantic characteristics and obtaining the classification information of the testing sample. According to the deep learning method of the invention, the correct efficiency for hyper-spectral image classification is increased and the method can be used for vegetation investigation, disaster monitoring, map making and intelligence obtaining.

The invention discloses an indoor planimetric map making method based on laser ranging, comprising the following steps: step one, acquiring indoor environmental data by using a mobile sensor platform; step 2, establishing a grid similarity map with multiple resolutions; step 3, acquiring the optimal position and posture of the sensor platform in various epochs by combining the indoor environmental data with the grid similarity map; step 4, updating the grid similarity map according to the optimal position and posture; step 5, educing the grid similarity map in the local coordinate system. According to the invention, the operation of acquiring data is simple, and preknowledge of the environmental space structure is not needed; the cost is low, the map making speed is high, multiple times of quick updating of the indoor map can be realized, and the bottleneck problem of indoor map making efficiency is effectively solved.

The invention discloses a rapid map making system based on GIS (Geographic Information System) data. The rapid map making system based on the GIS data is used for converting the GIS data into map making data in a high-precision map data format for map making publication, and completing intelligent pre-processing of the map making data in the data conversion process by fully utilizing rich semantic information in the GIS data and map making rules predefined in the map making system. The rapid map making system based on the GIS data comprises an original GIS data reading module, a symbol library establishing module, a graphical design repository module, an element conflict process repository module, a map making rule providing module, a map data generating module and a map file input and output module. According to the invention, the GIS data is converted into the map making data, therefore, the pre-processing operation of a large amount of the map making data can be completed before the map is edited, the map making period of a digital map is shortened, and the map making efficiency and quality based on GIS data are improved.

The invention provides a road matching method, a road matching apparatus and a vehicle-mounted map acquisition system, and relates to the field of map making. In the prior art, the existing matching accuracy is not high, and the high accuracy requires a lot of data learning. A purpose of the present invention is to solve the problems in the prior art. The road matching method comprises: acquiring the regularly upload data of a positioning system, and converting the data uploaded by the positioning system into the positioning data in a vector map; according to the positioning data at the current moment, determining the current positioning position, and acquiring the road information within a preset range using the current positioning position as the center as a first set; according to the road matching information determined at the previous moment, searching the road information associated with the determined road matching information in a vector map road network as a second set; according to the first set and the second set, acquiring candidate road matching information; and acquiring the weight value corresponding to each candidate road matching information according to a weight algorithm, and acquiring the road matching information at the current moment. With the technical scheme of the present invention, the matching accuracy is increased, and the extensive data learning is not required.

The invention provides a quick topographic map making method based on database driving. Topographic maps of corresponding plotting scales are quickly made by a built topographic database, and a map making database and the topographic database are subjected to integrated storage, integrated management and synchronous updating. The quick topographic map making method based on database driving comprises the following steps of: (1) preprocessing map making data at a management end, namely building the topographic database, expanding the map making function of the topographic database, deriving map making data, generating framing map making sub databases, and establishing framing map making engineering; (2) generating the map making data at a production end, namely optimizing and adjusting the map making data, editing map making, trimming the contour of a map, edging the data and outputting the map; and (3) putting the topographic map making data into the database at the management end, namely concentratively performing uniform data storage processing on the topographic map making data subjected to the map making production steps such as map making editing, inspection and accepting, and forming the final topography and map-making integrated database.

The invention discloses a Revit-based map making project sample plate manufacturing method. The method comprises the following steps of 1 manufacturing naming rules, 2 setting the line width, 3 setting a line type, 4 setting a filling style, 5 setting a line style, 6 setting an object sample, 7 setting a view sample plate, 8 defining project parameters and sharing parameters, 9 presetting a component class cluster, 10 presetting an annotation class cluster, 11 creating a detailed statement style, 12 creating a map frame and an icon, 13 storing a project sample plate file and 14 loading the project sample plate file when a new project is built. The line type, the line width and other elements are reset, a user conveniently and directly draw a construction map meeting the national standard, the naming modes of the component, the view and other elements are unified, and a designer can conveniently use and find the naming modes. The whole template provides a perfect design system for the designer, and the standardized and normalized solution is provided for the modeling and map making work of the designer.

The invention relates to a method for carrying out mangrove forest map making on intermediate resolution remote sensing image by utilizing object-oriented classification method, which relates to a method for mangrove forest map making and solves the problems of time and labor waste, bad timeliness and serious neglected and wrong classification of mangrove forest in positioning and map making of mangrove forest map making through conventional means at present. The method comprises the following steps: firstly, carrying out ortho-rectification and geometric exact correction on Landsat TM data so as to obtain Landsat TM images after registration; secondly, carrying out multi-layered multi-dimensioned division on the Landsat TM images after registration, wherein each division unit is used as an object; thirdly, extracting textural and topological characteristics, and calculating normalized vegetation index and ground surface humidity index; fourthly, removing a non-vegetated object so as to obtain a vegetated object; fifthly, extracting a mangrove forest object from the vegetated object; sixthly, exporting the mangrove forest object so as to generate a mangrove forest vector; and seventhly, manufacturing a mangrove forest thematic map. The method disclosed by the invention is used for mangrove forest map making.

The invention provides a street view map production method, a control server, an unmanned aerial vehicle and a production device. The street view map production method includes the following steps that: the control server establishes an image acquisition task according to a map production command and the geographic information of a corresponding street view region, and transmits the image acquisition task to the unmanned aerial vehicle; the unmanned aerial vehicle performs image acquisition on the corresponding street view region according to the image acquisition task and transmits acquired street view images to the control server; and the control server fuses the street view images according to geographic information corresponding to the street view images, so as to generate a street view map. The street view map production method, the control server, the unmanned aerial vehicle and the production device provided by the invention have the advantages of high street view map production efficiency, high street view map updating speed and low street view map production cost.

The invention relates to a high-precision map making method orienting a port unmanned container truck. The high-precision map making method is characterized in that road markings are extracted by combining laser point cloud and image processing, and the road information with lane lines is obtained; and the driving trajectories of the unmanned container truck are obtained by using GPS and IMU so asto generate the lane line basis of unmanned truck lane line intersection connection and make the high-precision map of the unmanned container truck. The beneficial effects are that as for the bottleneck of no lane line at the intersection of the special scene of the port, the general automated program or map maker has difficulty to draw the intersection meeting the automatic driving requirement of the unmanned container truck, and the high-precision map orienting the port unmanned container truck is made by using the mode of combining laser point cloud and image processing.

The invention relates to a method for generating a road network map based on bus GPS data. The method comprises the steps that 1, an urban region which needs to generate the road network map is selected, and GPS data of each bus are collected; 2, preprocessing is conducted on the stored GPS data of each bus, and separation is conducted on the GPS data of upstream buses and the GPS data of downstream buses on each route; 3, a road route is extracted; 4, superposition is conducted on the road route through a supplementary mode; 5, repeatability between road sections of the road route is judged, overlap road sections are combined, and an integrated road network map is generated. According to the method for generating the road network map based on the bus GPS data, the more accurate road network map with a clear direction is obtained, and the application of route guidance is facilitated; compared with a traditional map making method, the cost of obtaining data is low, the speed of obtaining is fast; the method for generating the road network map based on the bus GPS data has the advantages of being concise in steps and strong in practicability; the road network map can be rapidly generated through a software program, and a road network structure is updated in real time.

The invention relates to an indoor map and a making method thereof. The making method comprises the steps of acquiring and obtaining cartographic data of a cartographic area, classifying and layering the cartographic data, further dividing each feature class into a plurality of feature layers, determining an adopted indoor map type, namely an indoor layout map, an indoor route map or an indoor escape map, determining map data of the cartographic area according to the feature layer corresponding to the selected indoor map type, expressing priority according to the feature layers in the map data, determining specific cartographic contents of the maps in different scales, and generating and outputting the indoor map according to the determined specific map contents. According to the indoor map and the making method thereof, the indoor data is classified and layered, so that the method is applicable to various indoor environments; carrying capacities of the maps in different scales are considered; expression priorities are set for indoor data layers; the corresponding map contents are displayed according to different map scales; the requirement of a user on map cognition is met; and the map can better serve for indoor and outdoor navigation.

Disclosed herein is a system and method for drawing a stream and road centerline for GIS-based linear map production, which performs a series of processes of automatically detecting accurate positions of points of a centerline using contour line data of a stream map or a road map having a digital map form, which is extracted from a digital map produced through remote sensing or construction of national geographic information systems, and connecting the detected points of the centerline so as to update stream and road centerline data generated by an inaccurate method and algorithm and to enable an accurate centerline to be used in various application fields.

An embodiment of the invention discloses a map making method, device and system based on laser radar. The method comprises: respectively acquiring two preliminary data frames which correspond to adjacent scanning periods; respectively extracting point, line and surface features in the two preliminary data frames by a first preset algorithm; calculating a first transfer matrix by a second preset algorithm according to the extracted features; implementing registration of the two preliminary data frames; respectively extracting point, line and surface features of two middle data frames by the first preset algorithm and implementing registration again; and transforming local coordinate data frames, which are obtained by secondary registration, under a local coordinate system to a global coordinate system and updating the map. According to the technical scheme in the embodiment, the precision and accuracy of the obtained map can be improved, the map drawing efficiency is improved, and the occupied space and manufacturing cost of the system are saved.

The present invention provides a manufacturing method and a device for the three-dimensional map of an indoor environment. The method comprises the steps of acquiring the images of the indoor environment via a three-dimensional vision sensor, wherein the images of the indoor environment are composed of a color image and a depth image; converting the depth image into point cloud data; extracting a feature vector out of the color image and the depth image; determining the key-frame images of the images of the indoor environment according to the feature vector; in combination with the point cloud data, calculating transformation parameters among the key-frame images; according to the transformation parameters among the key-frame images, connecting all the key-frame images to generate a three-dimensional point cloud map of the indoor environment; and manufacturing the three-dimensional map of the indoor environment according to the three-dimensional point cloud map. According to the technical scheme of the invention, the three-dimensional map can be manufactured based on the depth features of the indoor environment, so that the manufactured three-dimensional map is good in expressing ability and better in visual effect.

The invention discloses an indoor map automatic building method and system. The system includes a data acquisition module which acquires point cloud data of indoor environment, a point cloud preprocessing module which extracts a geometric structure of the indoor environment from the point cloud data of indoor environment, a map building module which automatically builds an indoor raster map or an indoor vector map, and an output module which outputs the built map. The indoor map automatic building method and system can effectively utilize the three-dimensional point cloud data of indoor scene collected by consumption-grade RGB-D equipment to extract the geometric structure of the inside of a building by an automatic method and generate the plane raster map and the vector map of the inside of the building, which can solve the problem of conventional indoor map making, improve the efficiency of indoor mapping and reduce the cost of the indoor mapping.

The invention discloses an automobile or mobile device 3D image acquisition and naked-eye 3D head-up display system and a 3D image processing method. The automobile or mobile device 3D image acquisition and naked-eye 3D head-up display system includes a head-up display, a group of naked-eye 3D screens, a group of bionic 3D viewpoints, a 3D intelligent center, an automobile left side and right side bionic 3D viewpoint sight glass and an intra-automobile naked-eye 3D rearview mirror. With the automobile or mobile device 3D image acquisition and naked-eye 3D head-up display system and the 3D image processing method of the invention adopted, when a driver drives an automobile or uses a mobile device, he or she does not need to leave his or her sight from a road ahead to acquire information, and the driver can judge the relative distances of his or her automobile and other automobiles or pedestrians in adjacent lanes or lanes behind the his or her automobile according to 3D images which come from one group of bionic 3D viewpoints, are played by one group of naked-eye 3D screens in the automobile and have been subjected to bionic 3D image reconstruction technological processing; and an automobile naked-eye 3D playing platform can be provided for a 3D navigation map provided by the invention and other 3D navigation maps made by a third party.

The invention discloses a network thematic map making method and map making system. The method includes the steps that a client sends a map making request to an application server, and the map making request contains a map name and a map making layer; the application server calls a map server and extracts a map corresponding to the map name and unique identifiers of various graphics primitives of the map making layer of the map; meanwhile, a thematic data server is called, and thematic data corresponding to the unique identifiers of the graphics primitives are extracted; the extracted thematic data are encapsulated into a data file, and the data file, the map and the unique identifiers of the graphics primitives are sent to the client. The client calls a chart plug-in module to analyze the data file to obtain the thematic data so that a chart can be generated, and the chart and the map are displayed in an overlapped mode. According to the method and system, computational loads of the servers in the network thematic map making process are lightened, and the response speed of network map making is improved.

An engine control apparatus which may be employed in automotive vehicles. The engine control apparatus is equipped with a controlled variable arithmetic expression which defines correlations between combustion parameters associated with combustion conditions of an engine and controlled variables actuators for an operation of the engine. This eliminates the need for finding relations of optimum values of the controlled variables to the combustion parameters through adaptability tests, which results in a decrease in burden of an adaptability test work and a map-making work on manufacturers. The engine control apparatus also works to learn or optimize the controlled variable arithmetic expression based on actual values of the combustion parameters, thereby avoiding undesirable changes in correlations, as defined by the controlled variable arithmetic expression, due to a change in environmental condition.

The invention discloses a video map sharing method, and an apparatus and a system thereof. The method comprises the following steps: shooting a live-action video through a camera, and acquiring current position information in the live-action video shooting process; inserting the acquired current position information into the live-action video to generate a video map, and uploading the video map to a cloud server; and sending position information required by navigation to the cloud server when video navigation is needed, acquiring the video map corresponding to the position information from the cloud server, and navigating according to the video map. The video map made by a user can be shared by using the above technical scheme, and fine comprehensive navigation services are provided for users.

The invention discloses a vector tile map making method. The method comprises the steps of firstly determining the total number of tiles, a knowledge base and a symbol library corresponding to the tile map as well as a spatial resolution of each output tile according to a range of a vector map to be subjected to tile processing, the width and height of each output tile and a map scale of each output tile; secondly calculating a geographical range of one tile according to top left corner coordinates of the vector map, the geographical width and height of the tile and row and column numbers of the tile, and performing cutting and processing on vector map elements by taking the tile range as a cutting frame; and finally performing element processing and processed element storage on the vector map according to the geographical range, as the cutting frame, of the tile. According to the method, geographical elements in the generated vector tile map can be interactively accessed and the correctness and continuity of overall symbol expression of the geographical elements of the tiles can be kept.

The invention discloses a method for optimizing designs of an underground pipe network and landscape plantation by using a BIM technology, and belongs to the field of environment technologies. The method comprises the steps of step 1, establishment of an underground pipe network model, which specifically comprises establishing a three-dimensional visualization model for storm sewage, running water, fire fighting, electric power, weak current pipelines and inspection wells by Revit software; step 2, establishment of a landscape plantation model, which specifically comprises establishing a three-dimensional visualization model for landscape plants, roads and structures; step 3, model integration and rendering; step 4, model inspection; step 5, model adjustment; step 6, providing a construction drawing; step 7, disclosure of construction technologies; and step 8, auxiliary map making of complex parts. According to the method, the optimal design is performed depending on the three-dimensional visualization, roaming and collision detection functions of the BIM technology, thus the problem can be solved at the protocol stage, and smooth progress of the later construction is ensured.