CN112214650A - Method and system for constructing map space database - Google Patents
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Abstract
The invention discloses a method and a system for constructing a graph space database, wherein the method comprises the following steps: splitting the uploaded mine map file to generate a map layer; naming and coding the layer according to the service attribute; carrying out data structure standardization on a service data entity; binding the normalized service data entity with the layer; and describing and storing each layer and the service data entity by using a unified coordinate standard, and constructing a spatial database. By the method and the system, the layers and the service data entities can be flexibly organized, and the image supply of each specialty, theme and scene is realized, so that the cooperative work among different specialties and different scenes in the mining industry is realized.
Description
Technical Field
The invention relates to the technical field of mineral industry informatization, in particular to a method and a system for constructing a map space database.
Background
The coal mine production environment is complex and changeable, and in order to realize the safe production of the coal mine, the coal mine ground detection, ventilation, three prevention, electromechanical, production, monitoring and other departments are required to be closely cooperated. Coal mine production is a dynamic and real-time change process, and various data change in real time along with coal mine mining, so that real-time data of all departments needs to be updated in time and integrally provided with data of required subjects, scenes or positions.
Although the prior art discloses a coal mine management system in a "map mode", which discloses a framework of the management system, that is, the management system includes a data source layer, a collaborative update service layer, a data storage service layer and a business application layer, the data source layer respectively incorporates internal data into each corresponding database in the data storage layer through the collaborative update layer, so that data update is slow, and data are relatively independent, and it is impossible to really realize flexible acquisition of relevant data of mineral products according to topics, scenes and positions.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a solution that overcomes, or at least partially solves, the above-mentioned problems. Accordingly, in one aspect of the present invention, there is provided a method for constructing a graph-space database, the method comprising:
splitting the uploaded mine map file to generate a map layer;
naming and coding the layer according to the service attribute;
carrying out data structure standardization on a service data entity;
binding the normalized service data entity with the layer;
and describing and storing each layer and the service data entity by using a unified coordinate standard to construct a graph space database.
Optionally, the binding the normalized service data entity with the layer includes:
matching the thematic map with the map layer according to the codes;
calling a collaborative service interface to obtain a thematic map and a matched map layer;
and acquiring a service data entity according to the coding type, and binding the service data entity with the image layer.
Optionally, the method further includes:
calling a restful API interface to obtain a layer and corresponding binding information;
and calling the WebGIS SDK to perform layer rendering and service data entity rendering.
Optionally, naming and encoding the layer according to the service attribute, including:
providing layer data through a GIS service interface;
and coding the layer according to the layer name and the thematic map to which the layer belongs.
Optionally, the data structure normalization of the service data entity includes:
pushing and collecting business entity data in real time through an edge data gateway;
and coding the service data entity according to the application classification and the level attribute.
Optionally, the method further includes:
matching thematic maps and map layers;
and calling the cooperative service to obtain the thematic map and the corresponding map layer.
The invention also provides a system for constructing the graph space database, which comprises the following components:
the image layer generation module is used for splitting the uploaded mine map file to generate an image layer;
the layer coding module is used for naming and coding the layers according to the service attributes;
the service data entity processing module is used for standardizing the data structure of the service data entity;
the binding module is used for binding the normalized service data entity with the image layer;
the storage module is used for describing and storing each layer and service data entity by using a unified coordinate standard,
and constructing a graph space database.
Optionally, the binding module includes:
the matching sub-module matches the thematic map with the map layer according to the codes;
the cooperative service interface is used for acquiring the thematic map and the matched map layer;
and the binding submodule is used for acquiring the service data entity according to the coding type and binding the service data entity with the image layer.
Optionally, the system is further characterized in that the system further comprises:
the restful API interface is used for calling to acquire the image layer and the corresponding binding information;
and the WebGIS SDK interface is used for calling to perform layer rendering and service data entity rendering.
Optionally, the layer coding module provides layer data through a GIS service interface, and codes the layer according to the layer name and the thematic map to which the layer belongs.
Optionally, the service data entity processing module pushes and collects service entity data in real time through the edge data gateway, and encodes the service data entity according to the application classification and the level attribute.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
by the method and the system, the layers and the service data entities can be flexibly organized, and the image supply of each specialty, theme and scene is realized, so that the cooperative work among different specialties and different scenes in the mining industry is realized.
If one layer in the spatial database is updated, all thematic maps referring to the layer are automatically updated, and the cooperative work among different specialties and different scenes in the mining industry is further realized.
The above description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the technical solutions of the present invention and the objects, features, and advantages thereof more clearly understandable.
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Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a graph space database construction method;
fig. 2 shows a flow chart of the business data entity binding layer data.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In one aspect of the present invention, there is provided a graph space database constructing method, as shown in fig. 1, the method including:
s1, splitting the uploaded mine map file to generate a map layer;
s2, naming and coding the layer according to the service attribute;
s3, carrying out data structure standardization on the service data entity;
s4, binding the normalized service data entity with the map layer;
and S5, describing and storing each layer and the service data entity by using a unified coordinate standard, and constructing a map space database.
In the invention, the coal mine holographic one-image spatial database is a set of all mine image data and spatial object data of a whole mine unified coordinate standard, and is a basis for realizing cooperative work and data sharing among coal mine specialties such as geological measurement, ventilation, prevention, mining design, electromechanical design and the like. In the constructed spatial database, the mine map is composed of a map layer and a thematic map. The uploaded mine map file is split to generate the map layer, so that repeated labor can be avoided, and sharing is facilitated. The layers in the constructed spatial database are more standard than the layers of the block diagram files before uploading, are a set of spatial objects with the same service attributes, and are different from a general GIS spatial database in that the layers are basic composition units of a holographic spatial database.
In the present invention, it is not required that the spatial objects in one layer are all of the same type, but only have the same service attributes, such as roadways, boreholes, and the like. The slicing service is important for realizing the thin client WebGIS and the mobile terminal. The RED-GIS-2D platform provides a grid slicing function.
The grid slicing essentially renders the spatial data into map pictures with different zoom levels respectively, then segments the pictures of each level according to a certain rule, organizes the pictures according to a certain rule, and stores the pictures into a hard disk or a database to form a complete map. Compared with other technologies, the slice map (map layer) has advantages, such as effective reduction of transmission data volume, multi-stage zooming and the like. However, the grid map has some shortcomings, such as lack of flexibility and real-time performance, and the damage of data integrity is a more prominent problem.
In a spatial database, in order to realize the effective storage of the block diagram data, the naming and classification of the layers are normalized. Naming and coding the layer according to the service attribute, comprising: providing layer data through a GIS service interface; and coding the layer according to the layer name and the thematic map to which the layer belongs.
The naming and classification of the layers is shown in the following table:
the thematic map in the spatial database is actually a set of map layers, and the thematic map is composed of a plurality of map layers. Original graphic files, such as mining engineering floor plans, ventilation system plans, etc., are only references to one or more layers, and are referred to as thematic maps in the present invention. If one layer in the spatial database is updated, all thematic maps referring to the layer are automatically updated, so that the cooperative work among different specialties and scenes is realized. For the normalization of thematic maps in spatial databases, the names and codes of thematic maps follow the following principles: the thematic map code reflects classification attributes and service attributes. Part names and classifications are shown in the following table:
carrying out data structure standardization on the business data entity, including pushing and collecting business entity data in real time through an edge data gateway; and coding the service data entity according to the application classification and the level attribute.
Spatial objects are divided into two types: a base object and a coal mine custom object. Because we adopt the dwg graphic format, the data structure of basic objects such as points, straight lines, broken lines, polygons, characters and the like is determined by the dwg format, and the data structure has the standard and does not need to be designed independently. The coal mine self-defined object is a space object defined by combining specific coal mine services, and is irrelevant to a graphic platform in a data structure. From the perspective of production professional collaborative design and two-three-dimensional integrated application, at least the following data structures of space objects need to be designed: the system comprises a roadway, a roadway section, a stope face and a measuring point.
The data structure of the lane includes: tunnel ID, tunnel lead data (coordinates, left wall, right wall, top plate elevation, bottom plate elevation), design tunnel coordinate data, chamber data (name, height, depth, width, position), section information, tunnel excavation data (team, date, footage), material information (left wall, right wall, top plate, bottom plate), tunnel style (lead point style, lead point name style, lead point elevation style), tunnel topological relation, tunnel ventilation information (branch type, branch initial air volume, branch air resistance, branch reversal air resistance, air resistance calculation type, friction resistance coefficient, wind resistance calculation, air volume calculation, air pressure calculation, air volume measurement, air pressure measurement, initial node temperature, initial node relative air pressure, end node temperature, end node relative air pressure).
The data structure of the roadway section comprises: section style, section shape, section size, gutter parameters, and pipeline parameters. The section shape comprises section equipment type (mine car, belt, track, stringing and the like), track type, section shape (semicircular arch, circular arch, three-center arch, rectangle, trapezoid and the like), rise-span ratio, support mode and surrounding rock hardness; the section size comprises a left side edge distance, a right side edge distance, a pedestrian path width, a rail center distance, a stringing height, an upper width, a section wall height, a support thickness, a wall body left falling foot and equipment size (mine car size and belt size); the ditch parameters comprise the position, shape, cover plate and size of the ditch; the pipeline parameters include pipeline type (wind barrel, wind pipe, water drain pipe), pipeline diameter, edge distance, height and the like.
The data structure of the stope comprises: the level, mining area and working face of the working face; working face three-dimensional coordinate data (vertex coordinates, vertex thickness); working face stoping footage data (date, team, return air roadway footage, haulage roadway footage).
The data structure of the measuring point comprises: and the measuring point ID, the measuring point type, the measuring point coordinate and the roadway ID to which the measuring point belongs. The measuring points refer to sensors, personnel positioning substations (identifiers), cameras and the like in safety monitoring, personnel positioning, video monitoring and other systems, and are used for being connected with a real-time database to display real-time data.
It should be noted that the application requirements are changing, and it is impossible to define the data structures of all spatial objects at a time, and it is also impossible to completely define all the information of one spatial object. Therefore, when the space object data structure is designed, the expansion mechanism of the space object data structure is considered, so that the data structure of an object is expanded in the process of future professional application development, or a new space object is added.
As shown in fig. 2, the binding the normalized service data entity with the layer includes:
matching the thematic map with the map layer according to the codes;
calling a collaborative service interface to obtain a thematic map and a matched map layer;
and acquiring a service data entity according to the coding type, and binding the service data entity with the image layer.
By the technical means, various background functions can be provided in a service type GIS (services GIS), and service interfaces such as slicing, opening CAD (computer-aided design) graphs and log viewing are provided in a Restful interface mode.
As a specific embodiment, the method further comprises:
calling a restful API interface to obtain a layer and corresponding binding information;
and calling the WebGIS SDK to perform layer rendering and service data entity rendering.
In the technical scheme, the multi-process mode can be adopted for processing different layer requests, the concurrent processing is carried out by adopting the cooperation of the golang when the theme map is requested, the drawing performance is improved by utilizing the opengl rendering engine and the GPU, and the secondary development requirement is met by adopting a flexible sdk development interface.
The unified coordinate standard refers to that data in a spatial database is described and stored by adopting a unified coordinate system, so that various data can be automatically matched in spatial positions.
The same coordinate system is required to be used for constructing a coal mine holographic spatial database, and if the inconsistent coordinate systems are used, coordinate conversion is required.
Since the coordinate transformation among Beijing 54, Xian 80 and WGS84 coordinate systems belongs to the coordinate transformation among different reference ellipsoids, the coordinate transformation can be realized by two methods of seven-parameter space transformation or four-parameter plane similarity transformation. The seven-parameter method is suitable for large-range and high-precision coordinate conversion, and a Boolean sand model is commonly used; the four parameters are suitable for coordinate conversion of local small areas, a seven-parameter method is not strict theoretically, but the method is practical, and particularly, when the coordinate conversion is based on a plane, the ellipsoid parameters do not need to be known, so that the method is suitable for conversion among plane rectangular coordinate systems in any forms.
The coordinates used by the mine are generally gaussian coordinates, and the following description will take the example of converting the beijing 54 coordinates into the sienna 80 coordinates, and will describe the steps of using a seven-parameter method to perform coordinate conversion:
finding seven parameters
1) And taking a local central meridian, and performing Gaussian back calculation on the plane coordinate of the common point under the Beijing 54 coordinate system according to the parameters of the Classofsky ellipsoid to obtain the geodetic coordinate of the common point.
2) And converting the Beijing 54 geodetic coordinates into space rectangular coordinates according to the Kraft ellipsoid parameters.
3) Similarly, the coordinates of the Xian 80 are converted from plane coordinates to space rectangular coordinates.
4) And solving a least square solution of seven conversion parameters of the Boolean model according to two sets of space rectangular coordinates of known points under Beijing 54 and Xian 80 coordinate systems.
Beijing 54 to Xian 80
1) And (3) converting all the Beijing 54 Gaussian plane coordinates of the points to be converted into Beijing 54 geodetic coordinates by using a Gaussian inverse calculation formula.
2) Converting the Beijing 54 geodetic coordinates into space rectangular coordinates;
3) and converting the Beijing 54 space rectangular coordinates of all points to be converted into the space rectangular coordinates under the Xian 80 coordinate system by using a Boolean model.
4) And converting the space rectangular coordinates under the Western 80 coordinate system into geodetic coordinates.
5) The geodetic coordinates of the sienna 80 are converted into plane coordinates of gauss by using a gaussian positive calculation formula.
In order to facilitate coordinate conversion, metadata about coordinate system information needs to be provided when storing data about geographical locations.
The following describes an implementation process of building a mine excavation engineering drawing into a spatial database:
uploading mine excavation engineering drawing and appointing coordinate range
Utilizing ODA to identify dwg entity information, including layers, extended attributes, styles and the like;
using a slice caching technique, storing with [ layer, layer level, layer code [0,0], [0,1],. 9, 9.,. png picture binary storage data ] structure
If the version number is uploaded for the first time, the version number is defined for the first time
And if the dwg content is updated and uploaded, entering an updating data flow and updating the latest version number.
And the TX SDK establishes a monitoring mechanism, senses the graph to update, and automatically updates and renders the mine engineering drawing by the browser service application.
The following describes the data processing procedure for rapidly updating a topic map:
selecting the image layer level to divide the subject map and the corresponding image layer;
obtaining subject map code and layer information of modified area
And updating and storing the theme map data.
Through the technical means, the spatial database can be conveniently and quickly maintained, and if one layer in the spatial database is updated, all thematic maps referring to the layer are automatically updated, so that the cooperative work among different specialties and different scenes in the mining industry is realized.
The invention also provides a system for constructing the graph space database, which comprises the following components:
the image layer generation module is used for splitting the uploaded mine map file to generate an image layer;
the layer coding module is used for naming and coding the layers according to the service attributes;
the service data entity processing module is used for standardizing the data structure of the service data entity;
the binding module is used for binding the normalized service data entity with the image layer;
and the storage module is used for describing and storing each layer and the service data entity by using a unified coordinate standard and constructing a spatial database.
Optionally, the binding module includes:
the matching sub-module matches the thematic map with the map layer according to the codes;
the cooperative service interface is used for acquiring the thematic map and the matched map layer;
and the binding submodule is used for acquiring the service data entity according to the coding type and binding the service data entity with the image layer.
Optionally, the system is further characterized in that the system further comprises:
the restful API interface is used for calling to acquire the image layer and the corresponding binding information;
and the WebGIS SDK interface is used for calling to perform layer rendering and service data entity rendering.
Optionally, the layer coding module provides layer data through a GIS service interface, and codes the layer according to the layer name and the thematic map to which the layer belongs.
Optionally, the service data entity processing module pushes and collects service entity data in real time through the edge data gateway, and encodes the service data entity according to the application classification and the level attribute.
The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:
by the method and the device, if one layer in the spatial database is updated, all thematic maps referring to the layer are automatically updated, so that the cooperative work among different specialties and different scenes in the mining industry is realized.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (11)
1. A graph space database construction method, characterized in that the method comprises:
splitting the uploaded mine map file to generate a map layer;
naming and coding the layer according to the service attribute;
carrying out data structure standardization on a service data entity;
binding the normalized service data entity with the layer;
and describing and storing each layer and the service data entity by using a unified coordinate standard to construct a graph space database.
2. The method of claim 1, further characterized in that binding the normalized service data entity with the layer comprises:
matching the thematic map with the map layer according to the codes;
calling a collaborative service interface to obtain a thematic map and a matched map layer;
and acquiring a service data entity according to the coding type, and binding the service data entity with the image layer.
3. The method of claim 2, further characterized in that the method further comprises:
calling a restful API interface to obtain a layer and corresponding binding information;
and calling the WebGISSDK to perform layer rendering and business data entity rendering.
4. The method according to claim 1, wherein naming and encoding layers according to service attributes comprises:
providing layer data through a GIS service interface;
and coding the layer according to the layer name and the thematic map to which the layer belongs.
5. The method of claim 1, further characterized by normalizing the data structure of the business data entity, comprising:
pushing and collecting business entity data in real time through an edge data gateway;
and coding the service data entity according to the application classification and the level attribute.
6. The method of claim 1, further characterized in that the method further comprises:
matching thematic maps and map layers;
and calling the cooperative service to obtain the thematic map and the corresponding map layer.
7. A graph space database construction system, the system comprising:
the image layer generation module is used for splitting the uploaded mine map file to generate an image layer;
the layer coding module is used for naming and coding the layers according to the service attributes;
the service data entity processing module is used for standardizing the data structure of the service data entity;
the binding module is used for binding the normalized service data entity with the image layer;
and the storage module is used for describing and storing each layer and the service data entity by using a unified coordinate standard to construct a map space database.
8. The system of claim 7, further characterized in that the binding module comprises:
the matching sub-module matches the thematic map with the map layer according to the codes;
the cooperative service interface is used for acquiring the thematic map and the matched map layer;
and the binding submodule is used for acquiring the service data entity according to the coding type and binding the service data entity with the image layer.
9. The system of claim 8, further characterized in that the system further comprises:
the restfulAPI interface is used for calling to acquire the layer and the corresponding binding information;
and the WebGISSDK interface is used for calling to perform layer rendering and service data entity rendering.
10. The system according to claim 7, wherein the layer coding module provides layer data through a GIS service interface, and codes layers according to layer names and thematic maps to which the layers belong.
11. The system of claim 7, further characterized in that the service data entity processing module is configured to push and collect service entity data in real time through the edge data gateway, and encode the service data entity according to the application classification and the level attribute.
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| CN108009738A (en) * | 2017-12-14 | 2018-05-08 | 北京龙软科技股份有限公司 | A kind of coal mine management system of " figure " pattern |
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