CN106874415B - Environmental sensitive area database construction method and server based on generalized information system - Google Patents
Environmental sensitive area database construction method and server based on generalized information system Download PDFInfo
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 139
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Abstract
The present invention discloses environmental sensitive area database construction method and server based on generalized information system, and wherein this method is completed in server, comprising: obtains environmental sensitive area thematic data and stores to ground chart；A unique ID is distributed in each environmental sensitive area in chart over the ground, and respective environment sensitizing range thematic data is associated with ID；Ground chart is divided into the map layer table of identical quantity number according to the quantity of environmental sensitive area, environmental sensitive area database is finally constructed in each map layer table environmental sensitive area associated and corresponding with an ID；The essential attribute information and geographical location information of corresponding environmental sensitive area are stored in each map layer table, and data are used to show the cartographic information of respective environment sensitizing range in every map layer table after client call.The environmental sensitive area database that the present invention constructs cover environmentally sensitive areas distribution can real-time update and expansion.
Description
Technical field
The invention belongs to substation sensitizing range data processing field more particularly to a kind of environment based on generalized information system
Sensitizing range database construction method and server.
Background technique
With the development of China's power industry, the capacity of power grid is increasing, and the distance of conveying is more and more remoter, transmission line of electricity
Voltage class be also continuously improved, the construction scale of high voltage substation and overhead transmission line constantly expands.Along with economy
The influence of the social factors such as development and population growth, newly-built project of transmitting and converting electricity, which is gradually approached to densely populated area, to be had become greatly
Gesture is become.Many cities are powered the reorganization and expansion of power network in recent years, and substation is gradually built to urban district, high pressure by city suburbs
Overhead transmission line spreads all over the place in Urban Public playground and residential block, substation and the issuable environment of transmission line of electricity
It influences to be increasingly subject to the concern of people, to the environmental protection work of project of transmitting and converting electricity, more stringent requirements are proposed.
In project of transmitting and converting electricity environmental impact assessment and design phase, related data are distributed due to lacking environmentally sensitive areas,
In project of transmitting and converting electricity addressing route selection and process of construction, measure and pipe that part engineering is taken in terms of environmentally sensitive areas evacuation
It is insufficient to manage supporting method；Project of transmitting and converting electricity environmental impact prediction technology is not high in terms of automation, the level of informatization, selects in addressing
Line stage and path can not quickly, timely and accurately assess the influence of the environmentally sensitive point of project of transmitting and converting electricity when adjusting.
In conclusion need to establish renewable, the database expanded for covering environmentally sensitive areas distribution, be used to for based on
The automatic identification of the project of transmitting and converting electricity environment sensitive spot of existing power network GIS platform, sorting technique and project of transmitting and converting electricity electromagnetism, noise
It influences automatic Prediction and analyzes the basis that offers precise data, the informationization of Lai Tigao State Grid Corporation of China power grid environmental protection management, essence
Benefitization, intelligent level.
Summary of the invention
In order to solve the disadvantage that the prior art, it is quick that the first object of the present invention is to provide a kind of environment based on generalized information system
Sensillary area data base management system.
A kind of environmental sensitive area database construction method based on generalized information system of the invention, this method are complete in server
At specifically including:
Step 1: obtaining environmental sensitive area thematic data and store to ground chart；The environmental sensitive area thematic data packet
Include the essential attribute information of environmental sensitive area and the geographical location information of the environmental sensitive area detected by generalized information system；Wherein,
The essential attribute information of environmental sensitive area includes the rank of environmental sensitive area, membership settling time and protected object information；
Step 2: a unique ID is distributed in each environmental sensitive area in chart over the ground, and respective environment sensitizing range is special
Topic data are associated with ID；
Step 3: ground chart being divided into the map layer table of identical quantity number according to the quantity of environmental sensitive area, each
A map layer table environmental sensitive area associated and corresponding with an ID, finally constructs environmental sensitive area database；Eachly
The essential attribute information and geographical location information of corresponding environmental sensitive area, and data quilt in every map layer table are stored in figure layer table
It is used to show the cartographic information of respective environment sensitizing range after client call.
Further, this method further includes: according to the essential attribute information and geographical location information of environmental sensitive area, to every
A map layer table establishes a corresponding spatial index table, spatial analysis is carried out for assisting, to accelerate spatial analysis
Speed.
Further, this method further includes: environmental sensitive area thematic data is inputted in the way of raster data vector quantization
To server or it is manually inputted into server.
Environmental sensitive area thematic data of the invention using raster data vector inputting, be manually entered two ways carry out
Processing.The case where papery data all for environmental sensitive area thematic data, this papery data can not be used directly, it is necessary to
First carry out rasterizing operation, convert number format for papery data, by development platform by the geographical location of all kinds of sensitizing ranges,
In the data entry systems such as boundary.But in rasterizing operation, the problem of due to scanning accuracy, there is no coordinates on map in addition
Parameter, therefore, the data after rasterizing often will appear boundary and are not inconsistent, do not match with digital topography map in input system
A series of problems is needed by artificial means, to the sensitizing range thematic map after rasterizing, determines several positioning first on boundary
Point is corrected sensitizing range boundary stationary point according to the thematic information collected, the sensitizing range information in final realization system with
Data in thematic information can reach identical precision on same ratio ruler.Meanwhile the relevant information to sensitizing range into
Typing also is carried out to the attribute data of each sensitizing range during pedestrian's work is modified, be finally completed the construction of sensitizing range database with
Correction work.
Further, according to the map in type of ground objects, by the ground of the correspondence environmental sensitive area stored in each map layer table
Reason location information is divided into node class geographical location information, segmental arc class geographical location information and polygon class geographical location information；
Node class geographical location information is corresponding with punctual geo-objects, and segmental arc class geographical location information is corresponding with linear ground object, polygon
Class geographical location information is corresponding with area feature.It in this way can be by type of ground objects and the progress of corresponding geographical location information
Match, corresponding atural object can be more accurately shown on map.
Further, the spatial index table uses BSP tree, R tree or R+ tree construction.
BSP tree, R tree or R+ tree construction are the spatial indexes for dividing space from up to down, step by step.
BSP tree (Binary Space Partitioning Tree, two-dimensional space partition tree) is one kind step by step by space
The binary tree being divided into two, it can be adapted with the distribution situation of spatial object well.And BSP tree depth is generally all very big,
Influence the efficiency of various operations.
R tree is another form that B-tree develops to hyperspace, it is divided spatial object by range, each node pair
A region and a disk page are answered, the regional scope of its all child node, non-leaf node are stored in the disk page of non-leaf node
The regions of all child nodes all fall within its regional scope；It is stored within its regional scope in the disk page of leaf node
The boundary rectangle of all spatial objects.The child node number that each node can possess has upper and lower limit, and lower limit guarantees to disk sky
Between effective use, the upper limit guarantees the corresponding disk page of each node, but is inserted into the sky that new node makes certain node requirement
Between be greater than a disk page when, which is divided into two.R tree is a kind of dynamic indexing structure, it may be assumed that its inquiry can with insertion or
It deletes while carrying out, and do not need regularly to reorganize tree construction.
R+ tree is similar with R tree, and the main distinction is in R+ tree that the corresponding area of space of sibling is non-overlapping, divides in this way
Space eliminates " dead zone " that R tree generates because allowing the overlapping between node, and (node is in that without this node data
White space), invalid inquiry number is reduced, the efficiency of spatial index, but the behaviour for being inserted into, deleting spatial object are provided significantly
Make, then to guarantee that area of space is non-overlapping and efficiency reduces by operation.R+ tree stores trans-regional space object data simultaneously
Have a redundancy, and in database data increase, redundancy constantly increases.
The second object of the present invention is to provide a kind of server for constructing the environmental sensitive area database based on generalized information system.
A kind of server of the environmental sensitive area database of building of the invention based on generalized information system, comprising:
Data memory module is used to obtain environmental sensitive area thematic data and stores to ground chart；The environment is quick
Sensillary area thematic data includes the essential attribute information of environmental sensitive area and the geography of the environmental sensitive area detected by generalized information system
Location information；Wherein, the essential attribute information of environmental sensitive area include the rank of environmental sensitive area, membership settling time and
Protected object information；
ID distribution module is used for each environmental sensitive area in chart over the ground and distributes a unique ID, and will be corresponding
Environmental sensitive area thematic data is associated with ID；
Map layer table constructs module, is used to that ground chart to be divided into identical quantity according to the quantity of environmental sensitive area
Several map layer table, each map layer table environmental sensitive area associated and corresponding with an ID, it is quick finally to construct environment
Sensillary area database；The essential attribute information and geographical location information of corresponding environmental sensitive area are stored in each map layer table, and
Data are used to show the cartographic information of respective environment sensitizing range in every map layer table after client call.
Further, the server further include: spatial index table establishes module, is used for the base according to environmental sensitive area
This attribute information and geographical location information establish a corresponding spatial index table to each map layer table, for assisting
Spatial analysis is carried out, to accelerate the speed of spatial analysis.
Further, the server further include: data input module is used to utilize environmental sensitive area thematic data
Raster data vector quantization mode is input to server or is manually inputted into server.
Environmental sensitive area thematic data of the invention using raster data vector inputting, be manually entered two ways carry out
Processing.The case where papery data all for environmental sensitive area thematic data, this papery data can not be used directly, it is necessary to
First carry out rasterizing operation, convert number format for papery data, by development platform by the geographical location of all kinds of sensitizing ranges,
In the data entry systems such as boundary.But in rasterizing operation, the problem of due to scanning accuracy, there is no coordinates on map in addition
Parameter, therefore, the data after rasterizing often will appear boundary and are not inconsistent, do not match with digital topography map in input system
A series of problems is needed by artificial means, to the sensitizing range thematic map after rasterizing, determines several positioning first on boundary
Point is corrected sensitizing range boundary stationary point according to the thematic information collected, the sensitizing range information in final realization system with
Data in thematic information can reach identical precision on same ratio ruler.Meanwhile the relevant information to sensitizing range into
Typing also is carried out to the attribute data of each sensitizing range during pedestrian's work is modified, be finally completed the construction of sensitizing range database with
Correction work.
Further, the server further include: geographical location information categorization module is used for ground species according to the map
The geographical location information of the correspondence environmental sensitive area stored in each map layer table is divided into node class geographical location letter by type
Breath, segmental arc class geographical location information and polygon class geographical location information；Node class geographical location information is opposite with punctual geo-objects
It answers, segmental arc class geographical location information is corresponding with linear ground object, and polygon class geographical location information is corresponding with area feature.This
Sample can match type of ground objects with corresponding geographical location information, can more accurately show on map accordingly
Object.
Further, the spatial index table establishes the spatial index table in module using BSP tree, R tree or R+ tree construction.
BSP tree, R tree or R+ tree construction are the spatial indexes for dividing space from up to down, step by step.
BSP tree (Binary Space Partitioning Tree, two-dimensional space partition tree) is one kind step by step by space
The binary tree being divided into two, it can be adapted with the distribution situation of spatial object well.And BSP tree depth is generally all very big,
Influence the efficiency of various operations.
R tree is another form that B-tree develops to hyperspace, it is divided spatial object by range, each node pair
A region and a disk page are answered, the regional scope of its all child node, non-leaf node are stored in the disk page of non-leaf node
The regions of all child nodes all fall within its regional scope；It is stored within its regional scope in the disk page of leaf node
The boundary rectangle of all spatial objects.The child node number that each node can possess has upper and lower limit, and lower limit guarantees to disk sky
Between effective use, the upper limit guarantees the corresponding disk page of each node, but is inserted into the sky that new node makes certain node requirement
Between be greater than a disk page when, which is divided into two.R tree is a kind of dynamic indexing structure, it may be assumed that its inquiry can with insertion or
It deletes while carrying out, and do not need regularly to reorganize tree construction.
R+ tree is similar with R tree, and the main distinction is in R+ tree that the corresponding area of space of sibling is non-overlapping, divides in this way
Space eliminates " dead zone " that R tree generates because allowing the overlapping between node, and (node is in that without this node data
White space), invalid inquiry number is reduced, the efficiency of spatial index, but the behaviour for being inserted into, deleting spatial object are provided significantly
Make, then to guarantee that area of space is non-overlapping and efficiency reduces by operation.R+ tree stores trans-regional space object data simultaneously
Have a redundancy, and in database data increase, redundancy constantly increases.
The invention has the benefit that
(1) it the environmental sensitive area thematic data that will acquire of the present invention and stores to ground chart；It is every in chart over the ground again
A unique ID is distributed in a environmental sensitive area, and respective environment sensitizing range thematic data is associated with ID；According to environment
Ground chart is divided into the map layer table of identical quantity number by the quantity of sensitizing range, and each map layer table is associated with an ID
And a corresponding environmental sensitive area, finally construct environmental sensitive area database；Corresponding environment is stored in each map layer table
The essential attribute information and geographical location information of sensitizing range, and data are used to show phase after client call in every map layer table
Answer the cartographic information of environmental sensitive area；The environmental sensitive area database of building cover environmentally sensitive areas distribution can real-time update
And it expands；By the consistency operation of system, can all geography information, environmental sensitive area data be edited, be increased and decreased etc. with behaviour
Make, by establishing multistage auditing mechanism, database data can be made to be timely updated, reflects Around actual conditions in time,
It is preferably engineering feasibility study, planning evaluation service.
(2) the essential attribute information and geographical location information of the invention also according to environmental sensitive area, to each map layer table
Establish a corresponding spatial index table, for assist carry out spatial analysis, to accelerate the speed of spatial analysis, for based on
The automatic identification of the project of transmitting and converting electricity environment sensitive spot of existing power network GIS platform, sorting technique provide accurate dynamic change
Data basis finally realizes informationization, the lean, intelligent level of State Grid Corporation of China's power grid environmental protection management.
Detailed description of the invention
Fig. 1 is a kind of environmental sensitive area database construction method flow chart based on generalized information system of the invention.
Fig. 2 is a kind of server architecture figure of the environmental sensitive area database of building of the invention based on generalized information system.
Specific embodiment
The present invention will be further described with embodiment with reference to the accompanying drawing:
Environmental sensitive area according to the present invention, it is with referring to all types nature, the culture protection of constituted by law and right
The especially sensitive region of certain class pollution factor or the ecology influence factor of construction project.
Environmental sensitive area includes:
(1) nature reserve area, scenic spot, Place of world cultural and natural heritage, drinking water source protection zone；
(2) Basic Farmland Conservation Zones, basic grassland, Forest Park, geological park, Important Wetland, wildwood, rare be on the point of
The natural areal concentration of danger wild animals and plants, the natural spawning field of important aquatile, feeding ground, wintering ground and migration channel,
Natural fishing ground, resources water shortage area, soil erosion keypoint control area, sandy land close protection zone, closing and semi-enclosed sea
Domain, eutrophic water；
It (three) is the region of major function, historical relic's protection with inhabitation, health care, culture and education, scientific research, administrative office etc.
Unit, the protecting field with special history, culture, science, national meaning.
According to " Environmental Impact Assessment of Construction Items Classification Management register " (2015 editions), the environment that project of transmitting and converting electricity is related to is quick
Sensillary area is mainly (one) class and (three) class.Practical in conjunction with company's power network construction project environmental impact assessment, checking and accepting, this project is by the
(1) the related content in class and (three) class is merged, and nature reserve area, scenic spot, drinking water source are protected
The environmental sensitive area that the engineerings such as area, cultural relics and historic sites are paid close attention to individually sets class, due to the project of transmitting and converting electricity in environmental impact assessment is evaluated
The sensitive targets such as Forest Park are often also related to, therefore, although the environment sensitive that Forest Park is not related in project of transmitting and converting electricity
In area's type, but also the relevant information of Forest Park is collected and arranged when searching money and exploitation, is incorporated into nature guarantor
It protects in area.In view of data volume and sensitive zone properties, cultural relics and historic sites, Place of world cultural and natural heritage are merged into cultural relics and historic sites
Figure layer, meanwhile, the inquiry and management in historic site linear for ancient Great Wall etc., combining environmental sensitizing range database are built for convenience
If increasing linear historic site class figure layer.As for resident residential area, hospital, school, Office Area paid close attention in engineering construction etc. with people
Sensitizing range based on group, relevant location information, boundary information are mainly to show in topographic map after vector quantization, therefore,
In database design, such sensitizing range information is included into the map vector data library of stratum, and the data of the part sensitizing range are by state's net
The GIS unified platform provides.
Fig. 1 is a kind of environmental sensitive area database construction method flow chart based on generalized information system of the invention.
The environmental sensitive area database construction method based on generalized information system, this method are completed in server as shown in Figure 1,
It is specifically included:
Step 1: obtaining environmental sensitive area thematic data and store to ground chart；The environmental sensitive area thematic data packet
Include the essential attribute information of environmental sensitive area and the geographical location information of the environmental sensitive area detected by generalized information system；Wherein,
The essential attribute information of environmental sensitive area includes the rank of environmental sensitive area, membership settling time and protected object information.
Step 2: a unique ID is distributed in each environmental sensitive area in chart over the ground, and respective environment sensitizing range is special
Topic data are associated with ID.
Step 3: ground chart being divided into the map layer table of identical quantity number according to the quantity of environmental sensitive area, each
A map layer table environmental sensitive area associated and corresponding with an ID, finally constructs environmental sensitive area database；Eachly
The essential attribute information and geographical location information of corresponding environmental sensitive area, and data quilt in every map layer table are stored in figure layer table
It is used to show the cartographic information of respective environment sensitizing range after client call.
Wherein:
A. atlas table: the table that whole system has, it can be used as the highest level table in an atlas, in reality
It can be used as the overall planning table of multiple databases on now.Itself has the reference and description information of each map.
B. chart: the table that each map has, it can be used as the highest table of map in one engineering of management,
It is realized with the overall planning forms mode of a database.The table has each layer reference, description and reference information.
C. map layer table: each map layer has such a table, its table as one figure layer of management.Table tool
There are the spatial object of basic figure layer and the corresponding description information of each spatial object.
D. spatial index table: the corresponding spatial index table of each map layer, it carries out spatial analysis for assisting, to add
The speed of fast spatial analysis.
In another embodiment, this method further include: believed according to the essential attribute information of environmental sensitive area and geographical location
Breath, establishes a corresponding spatial index table to each map layer table, spatial analysis is carried out for assisting, to accelerate space
The speed of analysis.
Wherein, spatial index table uses BSP tree, R tree or R+ tree construction.
BSP tree, R tree or R+ tree construction are the spatial indexes for dividing space from up to down, step by step.
BSP tree (Binary Space Partitioning Tree, two-dimensional space partition tree) is one kind step by step by space
The binary tree being divided into two, it can be adapted with the distribution situation of spatial object well.And BSP tree depth is generally all very big,
Influence the efficiency of various operations.
R tree is another form that B-tree develops to hyperspace, it is divided spatial object by range, each node pair
A region and a disk page are answered, the regional scope of its all child node, non-leaf node are stored in the disk page of non-leaf node
The regions of all child nodes all fall within its regional scope；It is stored within its regional scope in the disk page of leaf node
The boundary rectangle of all spatial objects.The child node number that each node can possess has upper and lower limit, and lower limit guarantees to disk sky
Between effective use, the upper limit guarantees the corresponding disk page of each node, but is inserted into the sky that new node makes certain node requirement
Between be greater than a disk page when, which is divided into two.R tree is a kind of dynamic indexing structure, it may be assumed that its inquiry can with insertion or
It deletes while carrying out, and do not need regularly to reorganize tree construction.
R+ tree is similar with R tree, and the main distinction is in R+ tree that the corresponding area of space of sibling is non-overlapping, divides in this way
Space eliminates " dead zone " that R tree generates because allowing the overlapping between node, and (node is in that without this node data
White space), invalid inquiry number is reduced, the efficiency of spatial index, but the behaviour for being inserted into, deleting spatial object are provided significantly
Make, then to guarantee that area of space is non-overlapping and efficiency reduces by operation.R+ tree stores trans-regional space object data simultaneously
Have a redundancy, and in database data increase, redundancy constantly increases.
In another embodiment, this method further include: environmental sensitive area thematic data is utilized into raster data vector quantization side
Formula is input to server or is manually inputted into server.
Environmental sensitive area thematic data of the invention using raster data vector inputting, be manually entered two ways carry out
Processing.The case where papery data all for environmental sensitive area thematic data, this papery data can not be used directly, it is necessary to
First carry out rasterizing operation, convert number format for papery data, by development platform by the geographical location of all kinds of sensitizing ranges,
In the data entry systems such as boundary.But in rasterizing operation, the problem of due to scanning accuracy, there is no coordinates on map in addition
Parameter, therefore, the data after rasterizing often will appear boundary and are not inconsistent, do not match with digital topography map in input system
A series of problems is needed by artificial means, to the sensitizing range thematic map after rasterizing, determines several positioning first on boundary
Point is corrected sensitizing range boundary stationary point according to the thematic information collected, the sensitizing range information in final realization system with
Data in thematic information can reach identical precision on same ratio ruler.Meanwhile the relevant information to sensitizing range into
Typing also is carried out to the attribute data of each sensitizing range during pedestrian's work is modified, be finally completed the construction of sensitizing range database with
Correction work.
In another embodiment, according to the map in type of ground objects, the correspondence environment sensitive that will be stored in each map layer table
The geographical location information in area is divided into node class geographical location information, segmental arc class geographical location information and polygon class geographical location
Information；Node class geographical location information is corresponding with punctual geo-objects, and segmental arc class geographical location information is corresponding with linear ground object, more
Side shape class geographical location information is corresponding with area feature.Type of ground objects can be carried out with corresponding geographical location information in this way
Matching, can more accurately show corresponding atural object on map.
The Object-relational Database model of environmental sensitive area data of the invention:
A. the atural object feature model of object-oriented
The various atural objects for dividing map from geometric aspects can be abstracted are as follows: punctual geo-objects, linear ground object, area feature and mixed
Close the complicated atural object constituted.Then map M can simply be expressed as node class, segmental arc class, polygon class with the mode of object-oriented.
B. the attribute data model of object-oriented
On the basis of relationship DBMS, increase the functions such as encapsulation, succession and the information propagation of object oriented data model.
C. topological relation and object oriented programming model
Adjacent, incidence relation between usual atural object can be implied by the data sharing of common node, public segmental arc
Expression.
In traditional map making system, generally store figure and attribute data are completely separable hereof, but
As graph data amount is increasingly huge, the especially requirement of map data sets management and service has made this separation management
It is not able to satisfy the needs of current map data management.
Compared with file system management, database of the invention has the advantage that retrieval capability height, data easy to accomplish
Safety management, data integrity inspection, con current control, data sharing, the integrated management of figure and attribute data, additionally it is possible to
Operating system is closely integrated.
Environmental sensitive area thematic data that the present embodiment will acquire simultaneously is stored to ground chart；Again over the ground each of in chart
A unique ID is distributed in environmental sensitive area, and respective environment sensitizing range thematic data is associated with ID；It is quick according to environment
Ground chart is divided into the map layer table of identical quantity number by the quantity of sensillary area, each map layer table it is associated with an ID and
A corresponding environmental sensitive area, finally constructs environmental sensitive area database；It is quick that corresponding environment is stored in each map layer table
The essential attribute information and geographical location information of sensillary area, and data are used to show after client call accordingly in every map layer table
The cartographic information of environmental sensitive area；The environmental sensitive area database of building cover environmentally sensitive areas distribution can real-time update with
And it expands；By the consistency operation of system, can all geography information, environmental sensitive area data be edited, be increased and decreased etc. with operation,
By establishing multistage auditing mechanism, database data can be made to be timely updated, reflect Around actual conditions in time, more preferably
It is engineering feasibility study, planning evaluation service.
Fig. 2 is a kind of server architecture figure of the environmental sensitive area database of building of the invention based on generalized information system.
The server of environmental sensitive area database of the building based on generalized information system as shown in Figure 2, comprising:
Data memory module is used to obtain environmental sensitive area thematic data and stores to ground chart；The environment is quick
Sensillary area thematic data includes the essential attribute information of environmental sensitive area and the geography of the environmental sensitive area detected by generalized information system
Location information；Wherein, the essential attribute information of environmental sensitive area include the rank of environmental sensitive area, membership settling time and
Protected object information；
ID distribution module is used for each environmental sensitive area in chart over the ground and distributes a unique ID, and will be corresponding
Environmental sensitive area thematic data is associated with ID；
Map layer table constructs module, is used to that ground chart to be divided into identical quantity according to the quantity of environmental sensitive area
Several map layer table, each map layer table environmental sensitive area associated and corresponding with an ID, it is quick finally to construct environment
Sensillary area database；The essential attribute information and geographical location information of corresponding environmental sensitive area are stored in each map layer table, and
Data are used to show the cartographic information of respective environment sensitizing range in every map layer table after client call.
In one embodiment, the server further include: spatial index table establishes module, is used for according to environment sensitive
The essential attribute information and geographical location information in area establish a corresponding spatial index table to each map layer table, use
In assisting progress spatial analysis, to accelerate the speed of spatial analysis.
Wherein, spatial index table establishes the spatial index table in module using BSP tree, R tree or R+ tree construction.
BSP tree, R tree or R+ tree construction are the spatial indexes for dividing space from up to down, step by step.
BSP tree (Binary Space Partitioning Tree, two-dimensional space partition tree) is one kind step by step by space
The binary tree being divided into two, it can be adapted with the distribution situation of spatial object well.And BSP tree depth is generally all very big,
Influence the efficiency of various operations.
R tree is another form that B-tree develops to hyperspace, it is divided spatial object by range, each node pair
A region and a disk page are answered, the regional scope of its all child node, non-leaf node are stored in the disk page of non-leaf node
The regions of all child nodes all fall within its regional scope；It is stored within its regional scope in the disk page of leaf node
The boundary rectangle of all spatial objects.The child node number that each node can possess has upper and lower limit, and lower limit guarantees to disk sky
Between effective use, the upper limit guarantees the corresponding disk page of each node, but is inserted into the sky that new node makes certain node requirement
Between be greater than a disk page when, which is divided into two.R tree is a kind of dynamic indexing structure, it may be assumed that its inquiry can with insertion or
It deletes while carrying out, and do not need regularly to reorganize tree construction.
R+ tree is similar with R tree, and the main distinction is in R+ tree that the corresponding area of space of sibling is non-overlapping, divides in this way
Space eliminates " dead zone " that R tree generates because allowing the overlapping between node, and (node is in that without this node data
White space), invalid inquiry number is reduced, the efficiency of spatial index, but the behaviour for being inserted into, deleting spatial object are provided significantly
Make, then to guarantee that area of space is non-overlapping and efficiency reduces by operation.R+ tree stores trans-regional space object data simultaneously
Have a redundancy, and in database data increase, redundancy constantly increases.
In one embodiment, the server further include: data input module is used for environmental sensitive area special topic number
According to being input to server in the way of raster data vector quantization or be manually inputted into server.
Environmental sensitive area thematic data of the invention using raster data vector inputting, be manually entered two ways carry out
Processing.The case where papery data all for environmental sensitive area thematic data, this papery data can not be used directly, it is necessary to
First carry out rasterizing operation, convert number format for papery data, by development platform by the geographical location of all kinds of sensitizing ranges,
In the data entry systems such as boundary.But in rasterizing operation, the problem of due to scanning accuracy, there is no coordinates on map in addition
Parameter, therefore, the data after rasterizing often will appear boundary and are not inconsistent, do not match with digital topography map in input system
A series of problems is needed by artificial means, to the sensitizing range thematic map after rasterizing, determines several positioning first on boundary
Point is corrected sensitizing range boundary stationary point according to the thematic information collected, the sensitizing range information in final realization system with
Data in thematic information can reach identical precision on same ratio ruler.Meanwhile the relevant information to sensitizing range into
Typing also is carried out to the attribute data of each sensitizing range during pedestrian's work is modified, be finally completed the construction of sensitizing range database with
Correction work.
In one embodiment, the server further include: geographical location information categorization module is used according to the map
The geographical location information of the correspondence environmental sensitive area stored in each map layer table is divided into node class geography position by type of ground objects
Confidence breath, segmental arc class geographical location information and polygon class geographical location information；Node class geographical location information and punctual geo-objects
Corresponding, segmental arc class geographical location information is corresponding with linear ground object, and polygon class geographical location information is opposite with area feature
It answers.Type of ground objects can be matched in this way with corresponding geographical location information, phase can be more accurately shown on map
The atural object answered.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of environmental sensitive area database construction method based on generalized information system, which is characterized in that this method is complete in server
At specifically including:
Step 1: obtaining environmental sensitive area thematic data and store to ground chart；The environmental sensitive area thematic data includes ring
The essential attribute information of border sensitizing range and the geographical location information of the environmental sensitive area detected by generalized information system；Wherein, environment
The essential attribute information of sensitizing range includes the rank of environmental sensitive area, membership settling time and protected object information；
Step 2: a unique ID is distributed in each environmental sensitive area in chart over the ground, and by respective environment sensitizing range special topic number
It is associated according to ID；
Step 3: ground chart is divided into the map layer table of identical quantity number, each map according to the quantity of environmental sensitive area
A layer table environmental sensitive area associated and corresponding with an ID, finally constructs environmental sensitive area database；Each map layer
The essential attribute information and geographical location information of corresponding environmental sensitive area are stored in table, and in every map layer table data by client
End is used to show the cartographic information of respective environment sensitizing range after calling.
2. a kind of environmental sensitive area database construction method based on generalized information system as described in claim 1, which is characterized in that
This method further include: according to the essential attribute information and geographical location information of environmental sensitive area, one is established to each map layer table
A corresponding spatial index table carries out spatial analysis for assisting, to accelerate the speed of spatial analysis.
3. a kind of environmental sensitive area database construction method based on generalized information system as described in claim 1, which is characterized in that
Environmental sensitive area thematic data is input to server in the way of raster data vector quantization or is manually inputted into server.
4. a kind of environmental sensitive area database construction method based on generalized information system as described in claim 1, which is characterized in that
The geographical location information of the correspondence environmental sensitive area stored in each map layer table is divided into section by middle type of ground objects according to the map
Point class geographical location information, segmental arc class geographical location information and polygon class geographical location information；Node class geographical location information
Corresponding with punctual geo-objects, segmental arc class geographical location information is corresponding with linear ground object, polygon class geographical location information and face
Shape atural object is corresponding.
5. a kind of environmental sensitive area database construction method based on generalized information system as claimed in claim 2, which is characterized in that
The spatial index table is using any one in BSP tree or R tree or R+ tree construction.
6. a kind of server for constructing the environmental sensitive area database based on generalized information system characterized by comprising
Data memory module is used to obtain environmental sensitive area thematic data and stores to ground chart；The environmental sensitive area
Thematic data includes the essential attribute information of environmental sensitive area and the geographical location of the environmental sensitive area detected by generalized information system
Information；Wherein, the essential attribute information of environmental sensitive area includes the rank of environmental sensitive area, membership settling time and protection
Object information；
ID distribution module is used for each environmental sensitive area in chart over the ground and distributes a unique ID, and by respective environment
Sensitizing range thematic data is associated with ID；
Map layer table constructs module, is used to that ground chart to be divided into identical quantity number according to the quantity of environmental sensitive area
Map layer table, each map layer table environmental sensitive area associated and corresponding with an ID, finally constructs environmental sensitive area
Database；It is stored with the essential attribute information and geographical location information of corresponding environmental sensitive area in each map layer table, and every
Data are used to show the cartographic information of respective environment sensitizing range in figure layer table after client call.
7. server as claimed in claim 6, which is characterized in that the server further include: spatial index table establishes module,
It is used for essential attribute information and geographical location information according to environmental sensitive area, to each map layer table establish one it is right with it
The spatial index table answered carries out spatial analysis for assisting, to accelerate the speed of spatial analysis.
8. server as claimed in claim 6, which is characterized in that the server further include: data input module is used for
Environmental sensitive area thematic data is input to server in the way of raster data vector quantization or is manually inputted into server.
9. server as claimed in claim 6, which is characterized in that the server further include: geographical location information classification mould
Block is used for type of ground objects according to the map, and the geographical location of the correspondence environmental sensitive area stored in each map layer table is believed
Breath is divided into node class geographical location information, segmental arc class geographical location information and polygon class geographical location information；Node class
Reason location information is corresponding with punctual geo-objects, and segmental arc class geographical location information is corresponding with linear ground object, polygon class geography position
Confidence breath is corresponding with area feature.
10. server as claimed in claim 7, which is characterized in that the spatial index table establishes the spatial index in module
Table is using any one in BSP tree or R tree or R+ tree construction.
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| CN108829703A (en) * | 2018-04-28 | 2018-11-16 | 尚谷科技（天津）有限公司 | A kind of processing method of the remote sensing elevation data based on multi-source tree graph structure |
| WO2020031924A1 (en) * | 2018-08-10 | 2020-02-13 | ソニーセミコンダクタソリューションズ株式会社 | Information processing device, terminal device, information processing method, and information processing program |
| CN112463804B (en) * | 2021-02-02 | 2021-06-15 | 湖南大学 | KDTree-based image database data processing method |
| CN113806423A (en) * | 2021-09-18 | 2021-12-17 | 武汉朗迈科技有限公司 | GIS-based power transmission and transformation project environment-friendly detection system and method |
| CN114218215B (en) * | 2021-12-15 | 2023-04-14 | 中国民用航空飞行学院 | Optimized rendering method for large-scale GIS data |
| CN116991964B (en) * | 2023-09-25 | 2023-12-26 | 浙江电力交易中心有限公司 | Method, system and storage medium for processing green electricity data of regional users |
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