CN110751308A - Method for planning land space and determining region boundary - Google Patents
Method for planning land space and determining region boundary Download PDFInfo
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Abstract
The invention relates to a method for determining land space planning and region boundary, belonging to the technical field of land space planning, and the technical scheme is characterized by comprising the following steps of S1: generating a regional landform remote sensing map; step S2: overlapping and fitting the regional landform remote sensing map and the administrative region map to generate an administrative region boundary line; step S3: generating a landform boundary line on the regional landform remote sensing map; step S4: marking boundary points on the regional landform remote sensing map, and generating vector line segments between adjacent boundary points; step S5: adjusting the curvature of the vector line segment to form a region boundary line; step S6: calculating the length of the zone boundary lines and the area of the divided zones between the zone boundary lines; the problems that the influence factors of division of the area boundary are not comprehensively referenced and the operation is complicated due to the fact that the current area satellite map is singly adopted for division are solved; space planning and region boundary determination can be carried out more reasonably and conveniently by using workers.
Description
Technical Field
The invention relates to the technical field of territorial space planning, in particular to a method for determining territorial space planning and region boundaries.
Background
The land is a place for production and life of human beings, and the basic national policy of China is to cherish, reasonably utilize the land and practically protect cultivated land. Land use changes are also an important factor affecting global climate, ecosystem, economic benefits and human health to some extent. The land utilization planning is an important means for guiding the reasonable development and utilization of land and promoting the saving and intensive utilization of the land. The land utilization space planning prediction and simulation have decisive significance in guiding the regional climate and ecological environment influence brought by the scientific planning and evaluation of land utilization. With the continuous application of multi-temporal and multi-resolution remote sensing data and models in land use monitoring, evaluation and prediction, the solution of the spatial scale problem of land use spatial prediction and simulation is more and more emphasized.
The existing method for determining land space planning and region boundary can refer to Chinese patent document with an authorization publication number of CN102402728B, and discloses a method for predicting land utilization space planning and converting analog space scale, which specifically comprises the steps of automatically converting the current state of land utilization type or dynamic change data into grid component proportion data; carrying out statistical analysis on the current utilization situation or dynamic change area of different lands in each subregion; multi-scale grid conversion of land utilization status or dynamic spatial data; or refer to the Chinese patent application with application publication number CN109919385A, which discloses a county-level homeland space planning optimization method and system, the method firstly establishes a space planning data set along a coastline area; inputting the regional space planning data set along the coastline into Arcgis software for analysis to obtain a conflict pattern spot data table; determining the space distribution of the conflict pattern spots according to the conflict pattern spot data table; secondly, constructing a conflict pattern spot constraint table; then optimizing the spatial distribution of the conflict pattern spots according to the conflict pattern spot constraint table to obtain a first optimization area; determining a second optimization area; and finally, determining a county-country-level territory space planning use area according to the first optimized area and the second optimized area.
When the existing land space planning and area boundary determining method is used for space division and area boundary determination, a current satellite map of an area is often singly adopted for division, the reference distribution of influence factors of the division of the area boundary is not comprehensive, and the operation is complicated.
Disclosure of Invention
The invention aims to provide a method for planning soil space and determining a zone boundary, which can be used for more reasonably and conveniently carrying out space planning and zone boundary determination by using workers.
The above object of the present invention is achieved by the following technical solutions: a method for planning soil space and determining regional boundaries comprises the following steps:
step S1: carrying out remote sensing imaging on the divided areas by adopting a satellite remote sensing technology to generate a regional landform remote sensing map;
step S2: overlapping and fitting the regional landform remote sensing map and the administrative region map, and generating an administrative region boundary line on the regional landform remote sensing map;
step S3: identifying the landform characteristics on the regional landform remote sensing map to generate a landform boundary line;
step S4: marking boundary points on the regional landform remote sensing map, and generating vector line segments between adjacent boundary points;
step S5: adjusting the curvature of the vector line segment to form a smooth region boundary line;
step S6: the length of the zone boundary lines and the area of the divided zones between the zone boundary lines are calculated according to the zone boundary lines.
By adopting the technical scheme, the remote sensing imaging is carried out on the divided area by adopting the satellite remote sensing technology to generate the regional landform remote sensing map, and the regional landform remote sensing map and the administrative region map are overlapped and fitted to generate the administrative region boundary line on the regional landform remote sensing map, so that the existing administrative influence factors and the landform influence factors can be comprehensively considered when the space region is divided, and the regional division is more reasonable; the staff marks the boundary points on the regional landform remote sensing map, generates vector line segments between adjacent boundary points, and then adjusts the curvature of the vector line segments to form smooth regional boundary lines, thereby conveniently and quickly completing the space planning and regional boundary determination of the land.
The invention is further configured to: further comprising step S7: the method comprises the steps that a plurality of unmanned aerial vehicles with the GPS positioning function are adopted, cruising is carried out according to the tracks of the regional boundary lines, boundary length correction factors are generated according to cruising distances of the unmanned aerial vehicles, and the theoretical length of the regional boundary lines is corrected through the boundary length correction factors.
Through adopting above-mentioned technical scheme, through adopting unmanned aerial vehicle to cruise according to regional boundary line's orbit and carry out actual measurement, and then revise regional boundary line's theoretical length through the numerical value of many times of measurement, make the length aassessment to regional boundary line more accurate.
The invention is further configured to: the calculation of the boundary length correction factor comprises the following steps: s71, respectively subtracting the cruising distances of the unmanned aerial vehicles from the theoretical lengths of the regional boundary lines to generate a plurality of deviation values; s72, sorting the deviation values from small to large to form a deviation value array; s73, eliminating the data of twenty percent at the front end and twenty percent at the tail end of the deviation value series, and taking the rest deviation values as weighted averages to obtain boundary length correction factors; and S74, adding the boundary length correction factor and the theoretical length of the area boundary line to obtain a corrected area boundary line length value.
By adopting the technical scheme, the deviation values which are larger than the boundary line of the deviated area are eliminated by sequencing the deviation values from small to large, so that a method for calculating a weighted average is further adopted to calculate a boundary length correction factor, and the evaluation value of the boundary line length of the area can be corrected more accurately.
The invention is further configured to: in step S6, meshes are generated on the divided regions, and an area calculation boundary is generated between two points at which each mesh intersects with the region boundary line.
By adopting the technical scheme, the grids are generated on the divided regions, the areas of the divided regions are evaluated according to the number of the grids, an area calculation boundary is generated between two points, which are intersected by each grid and the region boundary line, near the region boundary line, and the areas of the region boundary lines are evaluated.
The invention is further configured to: in step S6, the scale accuracy of the grid is determined to one ten thousandth or less based on the size level of the divided region of the remote sensing map of the regional landform.
By adopting the technical scheme, the area evaluation precision of the divided region depends on the size of the grid, and the smaller the size of the grid is, the more accurate the area evaluation of the divided region is; the size grade of the divided region is determined through the regional landform remote sensing map, and then the size grade of the adopted grid is determined, so that the accuracy and the efficiency of the evaluation of the area of the divided region are ensured.
The invention is further configured to: the administrative area boundary line and the landform boundary line are marked with different colors.
By adopting the technical scheme, the administrative region boundary line and the landform boundary line are marked by adopting different colors, so that the administrative region boundary line and the landform boundary line can be visually distinguished by workers, and the workers can operate conveniently.
The invention is further configured to: in step S3, the human frequent activity area is marked based on the upper building area of the remote sensing map of the regional landscape.
By adopting the technical scheme, the upper building area of the landform remote sensing map is used for judging and marking the areas where people frequently move, so that the influence factors of human activities can be considered when the areas are conveniently changed, and the areas are more reasonably divided.
The invention is further configured to: in step S6, a region information list is generated from the region boundary length and the area of the divided region.
By adopting the technical scheme, the region information list is generated through the region boundary length and the area of the divided regions, so that people can conveniently check the information of each region through the region information list.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the method comprises the steps of carrying out remote sensing imaging on a divided area by adopting a satellite remote sensing technology to generate a regional landform remote sensing map, overlapping and fitting the regional landform remote sensing map and an administrative region map, and generating an administrative region boundary line on the regional landform remote sensing map, so that when a space region is divided, the existing administrative influence factors and the landform influence factors can be comprehensively considered, and the regional division is more reasonable; the method comprises the following steps that a worker marks boundary points on a regional landform remote sensing map, vector line segments are generated between adjacent boundary points, the curvature of the vector line segments is further adjusted, and smooth regional boundary lines are formed, so that space planning and regional boundary determination of the land can be conveniently and quickly completed;
2. the method comprises the following steps that a plurality of unmanned aerial vehicles are adopted to cruise along a regional boundary line track, difference is made between cruising length distance data and the theoretical length of a regional boundary line, deviation values are screened and weighted average is made, and the regional boundary line length theoretical value is corrected accurately;
3. administrative region boundary lines and landform boundary lines are marked by different colors, and frequent activity regions of human beings are marked according to upper building regions of the regional landform remote sensing map, so that workers can more conveniently analyze and evaluate the current region when performing region division.
Detailed Description
The present invention will be described in further detail below.
A method for planning soil space and determining regional boundaries comprises the following steps: step S1: and carrying out remote sensing imaging on the divided areas by adopting a satellite remote sensing technology to generate a regional landform remote sensing map. Step S2: and overlapping and fitting the regional landform remote sensing map and the administrative region map, and generating an administrative region boundary line on the regional landform remote sensing map. Step S3: and identifying the landform characteristics on the regional landform remote sensing map to generate a landform boundary line. Step S4: and marking boundary points on the regional landform remote sensing map, and generating vector line segments between adjacent boundary points. Step S5: and adjusting the curvature of the vector line segment to form a smooth region boundary line. Step S6: the length of the zone boundary lines and the area of the divided zones between the zone boundary lines are calculated according to the zone boundary lines. Step S7: the method comprises the steps that a plurality of unmanned aerial vehicles with the GPS positioning function are adopted, cruising is carried out according to the tracks of the regional boundary lines, boundary length correction factors are generated according to cruising distances of the unmanned aerial vehicles, and the theoretical length of the regional boundary lines is corrected through the boundary length correction factors.
When space planning and regional boundary determination are carried out, regions needing planning or boundary division are remotely sensed and imaged through a satellite remote sensing technology, a regional landform remote sensing map is generated, various landform distribution conditions of forest lands, mountain lands, fields, water lakes and construction lands of the currently divided regions can be known, and therefore space planning and regional boundary determination are reasonably carried out on the current regions. The landform characteristics on the regional landform remote sensing map are identified by relying on a hardware platform and a software platform and adopting an image identification technology through a computer, and a landform boundary line is generated. And marking the human frequent activity area according to the upper building area of the regional landform remote sensing map and the activity radius of the human.
After the current area is imaged after satellite remote sensing is finished, the regional landform remote sensing map and the administrative area map are overlapped and fitted through software, and an administrative area boundary line is generated on the regional landform remote sensing map. The administrative region boundary line and the landform boundary line are marked and displayed in different colors, so that workers can distinguish the landform region boundary line from the administrative region boundary line conveniently. The administrative region boundary line is generated on the regional landform remote sensing map, and then when the space region is planned, the existing administrative region is considered, so that the space planning and the determination of the region boundary are more reasonable and effective.
After the analysis of the regional landform map is completed, the staff select and mark boundary points on the regional landform map displayed on the display device through the touch device, and then vector line segments are generated between adjacent boundary points. And adjusting the curvature of the vector line segment to form a smooth region boundary line, and further finishing region division and boundary determination of the current region.
After the area division and the boundary determination of the current area, generating grids on the divided area, generating an area calculation boundary between two points where each grid is intersected with the boundary line of the area, determining the size level of the divided area according to the area landform remote sensing map, and enabling the scale precision of the grids to be less than or equal to one ten thousandth. The area of the divided region is evaluated by the number of generated meshes and the area of the meshes at the region boundary line, and the length of the region boundary line is determined at the same time.
And sending the generated track information of the area boundary line to the unmanned aerial vehicles, and cruising along the track of the area boundary line by adopting a plurality of unmanned aerial vehicles. And generating a boundary length correction factor according to the cruising distances of the unmanned aerial vehicles, and correcting the theoretical length of the regional boundary line through the boundary length correction factor. The calculation of the boundary length correction factor comprises the following steps: step S71, respectively subtracting the length values of the cruising distances of the unmanned aerial vehicles and the theoretical length of the regional boundary line to generate a plurality of deviation values; s72, sorting the deviation values from small to large to form a deviation value array; s73, eliminating the data of twenty percent at the front end and twenty percent at the tail end of the deviation value series, and taking the rest deviation values as weighted averages to obtain boundary length correction factors; and S74, adding the boundary length correction factor and the theoretical length of the area boundary line to obtain a corrected area boundary line length value.
After the determination of the boundary length of each divided region and the determination of the area of each divided region are completed, the area of each divided region and the length of the boundary line of each region are counted to generate a region information list, so that a worker can conveniently check the information of each divided region.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A method for planning soil space and determining regional boundaries is characterized by comprising the following steps:
step S1: carrying out remote sensing imaging on the divided areas by adopting a satellite remote sensing technology to generate a regional landform remote sensing map;
step S2: overlapping and fitting the regional landform remote sensing map and the administrative region map, and generating an administrative region boundary line on the regional landform remote sensing map;
step S3: identifying the landform characteristics on the regional landform remote sensing map to generate a landform boundary line;
step S4: marking boundary points on the regional landform remote sensing map, and generating vector line segments between adjacent boundary points;
step S5: adjusting the curvature of the vector line segment to form a smooth region boundary line;
step S6: the length of the zone boundary lines and the area of the divided zones between the zone boundary lines are calculated according to the zone boundary lines.
2. The method for determining a soil space plan and an area boundary as claimed in claim 1, further comprising the step of S7: the method comprises the steps that a plurality of unmanned aerial vehicles with the GPS positioning function are adopted, cruising is carried out according to the tracks of the regional boundary lines, boundary length correction factors are generated according to cruising distances of the unmanned aerial vehicles, and the theoretical length of the regional boundary lines is corrected through the boundary length correction factors.
3. The method of claim 1, wherein the step of deriving the boundary length correction factor comprises the steps of: s71, respectively subtracting the cruising distances of the unmanned aerial vehicles from the theoretical lengths of the regional boundary lines to generate a plurality of deviation values; s72, sorting the deviation values from small to large to form a deviation value array; s73, eliminating the data of twenty percent at the front end and twenty percent at the tail end of the deviation value series, and taking the rest deviation values as weighted averages to obtain boundary length correction factors; and S74, adding the boundary length correction factor and the theoretical length of the area boundary line to obtain a corrected area boundary line length value.
4. The method of claim 1 for geospatial planning and zone boundary determination, wherein the method comprises: in step S6, meshes are generated on the divided regions, and an area calculation boundary is generated between two points at which each mesh intersects with the region boundary line.
5. The method of claim 4, wherein the method further comprises: in step S6, the scale accuracy of the grid is determined to one ten thousandth or less based on the size level of the divided region of the remote sensing map of the regional landform.
6. The method of claim 1 for geospatial planning and zone boundary determination, wherein the method comprises: the administrative area boundary line and the landform boundary line are marked with different colors.
7. The method of claim 1 for geospatial planning and zone boundary determination, wherein the method comprises: in step S3, the human frequent activity area is marked based on the upper building area of the remote sensing map of the regional landscape.
8. The method of claim 1 for geospatial planning and zone boundary determination, wherein the method comprises: in step S6, a region information list is generated from the region boundary length and the area of the divided region.
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| CN112257921A (en) * | 2020-10-21 | 2021-01-22 | 山东财经大学 | Territorial space planning method |
| CN112883131B (en) * | 2021-01-11 | 2022-08-12 | 湖北地信科技集团股份有限公司 | Automatic correction processing method for cultivated land parcel under constraint of boundary line |
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| CN113159406A (en) * | 2021-04-14 | 2021-07-23 | 同济大学 | Multi-source data-based town entity range identification and planning information processing method |
| CN115168972A (en) * | 2022-08-04 | 2022-10-11 | 上海市农业科学院 | Non-point source pollution ecological interception engineering optimization method based on finite space recognition |
| CN115168972B (en) * | 2022-08-04 | 2023-04-11 | 上海市农业科学院 | Non-point source pollution ecological interception engineering optimization method based on finite space recognition |
| CN116977481A (en) * | 2023-09-25 | 2023-10-31 | 江西省国土资源测绘工程总院有限公司 | Auxiliary programming method and system for homeland space planning |
| CN116977481B (en) * | 2023-09-25 | 2023-12-15 | 江西省国土资源测绘工程总院有限公司 | Auxiliary programming method and system for homeland space planning |
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