A method and system for adjusting urban development boundary based on spatial analysis

Abstract

The present application relates to a kind of town development boundary adjustment method and system based on spatial analysis, it is related to town planning technical field, its method includes: collection demand development town information and development demand information;Based on demand development town information, call town basic land information and town geographic data information;Based on town basic land information, town geographic data information and development demand information, generate development initial boundary information;Based on development initial boundary information, generate development fragmentation parameter value;Based on development fragmentation parameter value and town geographic data information, generate selected geographic data information;Based on selected geographic data information, determine selected geographic boundary information;Based on selected geographic boundary information and development initial boundary information, determine development adjustment boundary information, and output development adjustment boundary information.The present application has the effect of facilitating the accurate landing implementation of town development boundary.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of urban planning, in particular to a method and system for adjusting urban development boundary based on spatial analysis. BACKGROUND

[0002] Urban planning is a comprehensive planning for scientific layout and reasonable arrangement of urban development, aiming to coordinate urban spatial layout, optimize resource allocation and promote sustainable development of economy, society and ecological environment.

[0003] Currently, in the process of urban planning, three control lines of farmland and permanent basic farmland protection red line, urban development boundary and ecological protection red line are respectively delineated according to agricultural space, ecological space and urban space. In delineating the urban development boundary, the current method is to take the existing urban construction land as the base number, and expand it according to the expansion multiple set by the upper level, and avoid areas unsuitable for urban construction such as geological disaster extremely high and high risk areas, flood storage areas, earthquake fault zones, flood risk prone areas and coal mining subsidence areas, so as to form the urban development boundary.

[0004] In planning the urban development boundary, the areas unsuitable for urban construction such as natural disasters are generally directly avoided, which leads to serious fragmentation of the urban development boundary delineation results, making it difficult to organize urban space and increasing the cost of infrastructure construction, and affecting the precise implementation of the urban development boundary. SUMMARY

[0005] In order to facilitate the precise implementation of the urban development boundary, the present application provides a method and system for adjusting the urban development boundary based on spatial analysis.

[0006] In the first aspect, the present application provides a method for adjusting the urban development boundary based on spatial analysis, which adopts the following technical scheme:

[0007] A method for adjusting the urban development boundary based on spatial analysis, comprising:

[0008] S1: collecting information of demand development town and development demand;

[0009] S2: based on the information of demand development town, calling urban basic land information and urban geographic data information;

[0010] S3: generating initial development boundary information based on the urban basic land information, the urban geographic data information and the development demand information;

[0011] S4: generating development fragmentation parameter value based on the initial development boundary information;

[0012] S5: generating selected geographic data information based on the development breaking parameter value and the town geographic data information;

[0013] S6: determining selected geographic boundary information based on the selected geographic data information;

[0014] S7: determining development adjustment boundary information based on the selected geographic boundary information and the development initial boundary information, and outputting the development adjustment boundary information.

[0015] Optionally, the method for generating the development initial boundary information comprises:

[0016] S31: calling a basic land parameter value and a basic land range information based on the town basic land information;

[0017] S32: calling a development demand multiple value based on the development demand information;

[0018] S33: determining a development demand land parameter value based on the development demand multiple value and the basic land parameter value;

[0019] S34: determining a type land parameter value and a basic land surrounding type information based on the basic land range information and the town geographic data information;

[0020] S35: generating type selected boundary information based on the development demand land parameter value, the basic land surrounding type information and the type land parameter value, and taking the type selected boundary information as the development initial boundary information.

[0021] Optionally, the method further comprises a step after the step of calling a development demand multiple value based on the development demand information:

[0022] S321: calling a town population parameter value based on the demand development town information;

[0023] S322: determining a town population change value based on the town population parameter value;

[0024] S323: determining a population change reference multiple value based on the town population change value;

[0025] S324: determining whether the development demand multiple value is greater than the population change reference multiple value;

[0026] S325: if yes, calculating a difference value between the development demand multiple value and the population change reference multiple value as a multiple deviation value;

[0027] S326: calculating a product value between the multiple deviation value and the population change reference multiple value as a multiple adjustment value;

[0028] S327: calculating a difference value between the development demand multiple value and the multiple adjustment value as a multiple correction value, and replacing the development demand multiple value with the multiple correction value;

[0029] S328: if no, continuing to output the development demand multiple value.

[0030] Optionally, the type selection boundary information generation method comprises:

[0031] S351: determining reference selection type information and residual type information based on the basic land perimeter type information and preset development reference type information;

[0032] S352: determining reference selection land parameter value based on the reference selection type information and the type land parameter value;

[0033] S353: determining reference selection boundary information based on the reference selection type information;

[0034] S354: determining whether the reference selection land parameter value is greater than the development demand land parameter value;

[0035] S355: if yes, taking the reference selection boundary information as the type selection boundary information;

[0036] S356: if no, calculating a difference value between the reference selection land parameter value and the development demand land parameter value as a reference selection land deviation value;

[0037] S357: determining residual type land parameter value based on the residual type information and the type land parameter value;

[0038] S358: determining residual selection boundary information based on the residual type land parameter value and the reference selection land deviation value, and combining the residual selection boundary information with the reference selection boundary information to form the type selection boundary information.

[0039] Optionally, the development fragmentation parameter value generation method comprises:

[0040] S41: retrieving single boundary range information and single boundary number value based on the development initial boundary information;

[0041] S42: retrieving single boundary coverage area value based on the single boundary range information;

[0042] S43: sorting from large to small based on the single boundary coverage area value, taking the single boundary range information corresponding to the single boundary coverage area value ranked first as the central boundary range information, and taking the single boundary range information other than the central boundary range information as the residual boundary range information;

[0043] S44: calculating the nearest distance between the central boundary range information and each of the residual boundary range information as a residual boundary distance value;

[0044] S45: determining a residual boundary fragmentation number value based on the comparison result between the residual boundary distance value and a preset residual boundary reference distance value;

[0045] S46: calculating the quotient value between the residual boundary fragmentation number value and the single boundary number value as a fragmentation ratio value, and taking the fragmentation ratio value as the development fragmentation parameter value.

[0046] Optionally, the method further comprises a step after taking the fragmentation ratio value as the development fragmentation parameter value:

[0047] S461: calculating the nearest distance between each of the residual boundary range information as a neighboring boundary distance value;

[0048] S462: determining a neighboring boundary number value based on the comparison result between the neighboring boundary distance value and a preset neighboring boundary reference distance value;

[0049] S463: determining a neighboring boundary reference number value based on the residual boundary fragmentation number value;

[0050] S464: determining whether the neighboring boundary number value is greater than the neighboring boundary reference number value;

[0051] S465: if yes, calculating the difference value between the neighboring boundary number value and the neighboring boundary reference number value as a neighboring boundary number deviation value;

[0052] S466: determining a number deviation influence value based on the neighboring boundary number deviation value;

[0053] S467: calculating the product value between the number deviation influence value and the fragmentation ratio value as a fragmentation ratio adjustment value, and replacing the development fragmentation parameter value with the fragmentation ratio adjustment value;

[0054] S468: if no, continuing to output the development fragmentation parameter value.

[0055] Optionally, the method for generating the selected geographic data information comprises:

[0056] S51: determining whether the development fragmentation parameter value is less than a preset fragmentation reference parameter value;

[0057] S52: if yes, directly taking the town geographic data information as the selected geographic data information;

[0058] S53: if no, calculating a difference value between the development fragmentation parameter value and the preset fragmentation reference parameter value as a development fragmentation deviation value;

[0059] S54: determining a fragmentation deviation demand range information based on the development fragmentation deviation value;

[0060] S55: calling adjacent boundary data information based on the adjacent boundary number value and the town geographic data information;

[0061] S56: generating selected boundary data information based on the adjacent boundary data information and the fragmentation deviation demand range information, and taking the selected boundary data information as the selected geographic data information.

[0062] Optionally, the method for generating the selected boundary data information comprises:

[0063] S561: calling adjacent boundary range information based on the adjacent boundary data information;

[0064] S562: determining surrounding geographic data information based on the central boundary range information and the adjacent boundary range information;

[0065] S563: calling surrounding geographic category information and surrounding geographic range information based on the surrounding geographic data information;

[0066] S564: determining category influence disaster information based on the surrounding geographic category information;

[0067] S565: generating disaster adjustment range information based on the category influence disaster information and the surrounding geographic range information;

[0068] S566: determining surrounding selected data information based on the disaster adjustment range information and the fragmentation deviation demand range information, and taking the surrounding selected data information as the selected boundary data information.

[0069] Optionally, the method for generating the disaster adjustment range information comprises:

[0070] S5651: determining a disaster influence time period based on the category influence disaster information;

[0071] S5652: calling development category information based on the development demand information;

[0072] S5653: determining a development category demand time period based on the development category information;

[0073] S5654: determining an overlapping time period based on the disaster influence time period and the development category demand time period;

[0074] S5655: determining an overlapping time influence value based on the overlapping time period;

[0075] S5656: selecting and forming surrounding selection range information based on a comparison result of the overlapping time influence value and a preset time reference influence value, and taking the surrounding selection range information as the disaster adjustment range information.

[0076] In a second aspect, the present application provides a town development boundary adjustment system based on spatial analysis, which adopts the following technical solution:

[0077] A town development boundary adjustment system based on spatial analysis, comprising:

[0078] A collection module for collecting demand development town information and development demand information;

[0079] A memory storing a program for implementing the town development boundary adjustment method based on spatial analysis according to any one of the first aspect;

[0080] A processor for loading and executing the program stored in the memory.

[0081] In summary, the present application has at least one of the following beneficial technical effects:

[0082] 1. By collecting demand development town information and development demand information and calling town basic land information and town geographic data information, generating development initial boundary information through town basic land information, town geographic data information and development demand information, generating development fragmentation parameter value through development initial boundary information, generating selected geographic data information through development fragmentation parameter value and town geographic data information to determine selected geographic boundary information, and then determining development adjustment boundary information through selected geographic boundary information and development initial boundary information and outputting, the town development boundary is adjusted according to the fragmentation, which facilitates the precise implementation of town development boundary.

[0083] 2. The method comprises the following steps: acquiring the basic land parameter value and the basic land range information through the urban basic land information, acquiring the development demand multiple value through the development demand information, determining the development demand land parameter value through the development demand multiple value and the basic land parameter value, determining the basic land surrounding type information and the type land parameter value through the basic land range information and the urban geographic data information, generating the type selection boundary information through the development demand land parameter value, the basic land surrounding type information and the type land parameter value, and taking the type selection boundary information as the development initial boundary information, so that the accuracy of the obtained development initial boundary information is improved.

[0084] 3. The method comprises the following steps: acquiring the urban population parameter value through the demand development urban information to determine the population change reference multiple value, judging whether the development demand multiple value is greater than the population change reference multiple value, when the development demand multiple value is greater than the population change reference multiple value, calculating the multiple correction value and replacing the development demand multiple value, and when the development demand multiple value is not greater than the population change reference multiple value, continuing to output the development demand multiple value, so that the accuracy of the obtained development demand multiple value is improved. BRIEF DESCRIPTION OF DRAWINGS

[0085] Figure 1 It is a method flow chart of urban development boundary adjustment based on spatial analysis;

[0086] Figure 2 It is a generation method flow chart of development initial boundary information;

[0087] Figure 3 It is a generation method flow chart of development fragmentation parameter value;

[0088] Figure 4 It is a generation method flow chart of selected geographic data information. DETAILED DESCRIPTION

[0089] The application will be further described in detail below in combination with the drawings and embodiments.

[0090] A kind of urban development boundary adjustment method based on spatial analysis, through the collection of demand development urban information and development demand information, and analysis generates development initial boundary information and development fragmentation parameter value, development initial boundary information is adjusted to form development adjustment boundary information and output through development fragmentation parameter value, so that the urban development boundary is adjusted according to fragmentation, facilitate the accurate landing implementation of urban development boundary.

[0091] REFERENCE Figure 1 The embodiment of the application discloses a kind of urban development boundary adjustment method based on spatial analysis, which includes:

[0092] S1: collecting demand development urban information and development demand information.

[0093] The demand development town information refers to town information that needs to be developed and planned, and the development demand information refers to information such as a multiple and a type required when developing the town. The demand development town information and the development demand information are obtained by being pre-input by an operator.

[0094] S2: retrieving town basic land information and town geographic data information based on the demand development town information.

[0095] The town basic land information refers to parameter information such as a developed land area and a location of the town at a current time, and the town geographic data information refers to parameter information such as a geographic type, an area, and a location of a surrounding of the town.

[0096] The town database pre-stores a comparison table of different demand development town information and corresponding town basic land information and town geographic data information, and the town database is obtained by being pre-input.

[0097] The town database pre-stores a comparison table of different demand development town information and corresponding town basic land information and town geographic data information, and the town database is obtained by being pre-input.

[0098] S3: generating development initial boundary information based on the town basic land information, the town geographic data information, and the development demand information.

[0099] The development initial boundary information refers to initial town development boundary information when planning the town.

[0100] The development initial boundary information is generated by analyzing the town basic land information, the town geographic data information, and the development demand information, and is convenient for subsequent use.

[0101] The specific generation steps of the development initial boundary information are referred to S31 to S35.

[0102] S4: generating a development fragmentation parameter value based on the development initial boundary information.

[0103] The development fragmentation parameter value refers to a reference parameter value corresponding to a case where the initial town development boundary is fragmented.

[0104] The development fragmentation parameter value is generated by analyzing the development initial boundary information, and is convenient for subsequent use.

[0105] The specific generation steps of the development fragmentation parameter value are referred to S41 to S46.

[0106] S5: generating selected geographic data information based on the development fragmentation parameter value and the town geographic data information.

[0107] The selected geographic data information refers to data information corresponding to the selected geographic region around the town.

[0108] The selected geographic data information is generated by analyzing the development fragmentation parameter value and the town geographic data information, facilitating subsequent use.

[0109] The specific generation steps of the selected geographic data information are referred to S51 to S56.

[0110] S6: Determine the selected geographic boundary information based on the selected geographic data information.

[0111] The selected geographic boundary information refers to the boundary information corresponding to the selected geographic region around the town.

[0112] The selected geographic data information is used to call the range covered by the selected geographic region around the town, and the boundary is formed according to the coverage range to serve as the selected geographic boundary information, facilitating subsequent use.

[0113] S7: Determine the development adjustment boundary information based on the selected geographic boundary information and the development initial boundary information, and output the development adjustment boundary information.

[0114] The development adjustment boundary information refers to the boundary information corresponding to the initial town development boundary after adjustment.

[0115] The selected geographic boundary information is used to expand the boundary corresponding to the development initial boundary information, thereby forming the development adjustment boundary information, and outputting the development adjustment boundary information, so as to adjust the town development boundary according to the fragmentation condition, facilitating the accurate implementation of the town development boundary.

[0116] In step S3, in order to further ensure the rationality of the development initial boundary information, it is necessary to make further separate analysis and calculation on the development initial boundary information. The specific steps are as follows.

[0117] Referring to Figure 2 , the generation method of the development initial boundary information includes the following steps:

[0118] S31: Call the basic land parameter value and basic land range information based on the town basic land information.

[0119] The basic land parameter value refers to the parameter value corresponding to the developed land area of the town at the current time, and the basic land range information refers to the range information covered by the developed land position of the town at the current time. The town basic land information includes the basic land parameter value and the basic land range information.

[0120] The basic land parameter value and the basic land range information are retrieved through the urban basic land information, and subsequent use is facilitated.

[0121] S32: Retrieving a development demand multiple value based on development demand information.

[0122] The development demand multiple value refers to a multiple value corresponding to the expansion of the demand land area when developing the urban area. The development demand information includes the development demand multiple value.

[0123] The development demand multiple value is retrieved through the development demand information, and subsequent use is facilitated.

[0124] S33: Determining a development demand land parameter value based on the development demand multiple value and the basic land parameter value.

[0125] The development demand land parameter value refers to an area parameter value corresponding to the demand land after the urban area is developed and planned.

[0126] The product value between the development demand multiple value and the basic land parameter value is calculated and used as the development demand land parameter value, and subsequent use is facilitated.

[0127] S34: Determining basic land surrounding type information and type land parameter value based on basic land range information and urban geographic data information.

[0128] The basic land surrounding type information refers to the geographic type information of the area located around the developed and used basic land. The type land parameter value refers to a parameter value corresponding to the coverage area of a single geographic type area.

[0129] The data information corresponding to the adjacent area of the basic land range information is retrieved from the urban geographic data information and used as the adjacent geographic data information. The adjacent geographic data information includes the type of the area and the coverage area. The type of the area is retrieved from the adjacent geographic data information and used as the basic land surrounding type information. The coverage area corresponding to the basic land surrounding type information is retrieved from the adjacent geographic data information and used as the type land parameter value, and subsequent use is facilitated.

[0130] S35: Generating type selection boundary information based on the development demand land parameter value, the basic land surrounding type information, and the type land parameter value, and using the type selection boundary information as the development initial boundary information.

[0131] The type selection boundary information refers to the boundary information formed after the area is selected according to the geographic type.

[0132] The type selection boundary information is generated by analyzing the development demand land parameter value, the basic land surrounding type information and the type land parameter value, and the type selection boundary information is used as the development initial boundary information, thereby improving the accuracy of the obtained development initial boundary information.

[0133] The specific generation steps of the type selection boundary information are described with reference to S351 to S358.

[0134] In step S3, in order to further ensure the rationality of the development demand multiple value, further separate analysis and calculation are needed after the development demand multiple value is obtained based on the development demand information, which is specifically described as follows.

[0135] The steps after the development demand multiple value is obtained based on the development demand information include the following steps:

[0136] S321: Obtain the town population parameter value based on the demand development town information.

[0137] The town population parameter value refers to the population parameter value of the town that needs to be developed and planned. Different demand development town information corresponds to different town population parameter values.

[0138] The demand development town information is input into the preset town database to match the town population parameter value, which is convenient for subsequent use.

[0139] The town database also pre-stores a comparison table of different demand development town information and corresponding town population parameter values.

[0140] S322: Determine the town population change value based on the town population parameter value.

[0141] The town population change value refers to the change value corresponding to the change of the population living in the town.

[0142] The difference between the town population parameter values of adjacent years is calculated to form a population deviation value, and the population deviation value is analyzed to form a population deviation curve, and the change of the future time is formed according to the population deviation curve to form the town population change value, which is convenient for subsequent use.

[0143] S323: Determine the population change reference multiple value based on the town population change value.

[0144] The population change reference multiple value refers to the reference multiple value of the land development and expansion according to the population change. Different town population change values correspond to different population change reference multiple values.

[0145] The population change reference multiple value is matched by inputting the urban population change value into a preset population change reference multiple database.

[0146] The population change reference multiple database pre-stores a comparison table of different urban population change values and corresponding population change reference multiple values, and the population change reference multiple database is obtained by pre-input.

[0147] S324: Determine whether the development demand multiple value is greater than the population change reference multiple value. If yes, execute S325; if no, execute S328.

[0148] Wherein, whether the development demand multiple value needs to be adjusted is determined by judging whether the development demand multiple value is greater than the population change reference multiple value.

[0149] S325: Calculate the difference between the development demand multiple value and the population change reference multiple value as a multiple deviation value.

[0150] Wherein, the multiple deviation value refers to the deviation value corresponding to the deviation of the multiple.

[0151] When the development demand multiple value is greater than the population change reference multiple value, it means that the development demand multiple value needs to be adjusted at this time, so the difference between the development demand multiple value and the population change reference multiple value is calculated as a multiple deviation value for subsequent use.

[0152] S326: Calculate the product value between the multiple deviation value and the population change reference multiple value as a multiple adjustment value.

[0153] Wherein, the multiple adjustment value refers to the adjustment value corresponding to the adjustment of the multiple.

[0154] The product value between the multiple deviation value and the population change reference multiple value is calculated as a multiple adjustment value for subsequent use.

[0155] S327: Calculate the difference between the development demand multiple value and the multiple adjustment value as a multiple correction value, and replace the development demand multiple value with the multiple correction value.

[0156] Wherein, the multiple correction value refers to the correction value corresponding to the correction of the multiple.

[0157] The difference between the development demand multiple value and the multiple adjustment value is calculated as a multiple correction value, and the multiple correction value is used to replace the development demand multiple value, thereby improving the accuracy of the obtained development demand multiple value.

[0158] S328: Continue to output the development demand multiple value.

[0159] When the development demand multiple value is not greater than the population change reference multiple value, it indicates that the development demand multiple value does not need to be adjusted, and thus the development demand multiple value is continuously output, thereby improving the accuracy of the obtained development demand multiple value.

[0160] In step S35, in order to further ensure the rationality of the type selection boundary information, further separate analysis and calculation of the type selection boundary information is required, which is specifically described as follows.

[0161] The generation method of the type selection boundary information includes the following steps:

[0162] S351: determining reference selection type information and residual type information based on the basic land surrounding type information and preset development reference type information.

[0163] The development reference type information refers to type information corresponding to land that can be directly developed, and is obtained by pre-input. The reference selection type information refers to type information corresponding to the basic land surrounding type information after selection. The residual type information refers to type information corresponding to the basic land surrounding type information that is not selected.

[0164] The basic land surrounding type information is compared with the preset development reference type information, and the basic land surrounding type information that is consistent with the comparison is taken as the reference selection type information, and the basic land surrounding type information that is inconsistent with the comparison is taken as the residual type information, for subsequent use.

[0165] S352: determining reference selection land parameter values based on the reference selection type information and type land parameter values.

[0166] The reference selection land parameter values refer to coverage area values corresponding to geographical type regions that can be directly developed.

[0167] The reference selection type information is used to query corresponding type land parameter values as single selection land parameter values, and the sum of the single selection land parameter values is calculated as the reference selection land parameter values, for subsequent use.

[0168] S353: determining reference selection boundary information based on the reference selection type information.

[0169] The reference selection boundary information refers to boundary information corresponding to geographical type regions that can be directly developed. Different reference selection type information corresponds to different reference selection boundary information.

[0170] The reference selection type information is input into a preset reference selection boundary database to match reference selection boundary information, facilitating subsequent use.

[0171] The reference selection boundary database pre-stores a reference table of different reference selection type information and corresponding reference selection boundary information, and the reference selection boundary database is obtained by pre-input.

[0172] S354: Determine whether the reference selection land parameter value is greater than the development demand land parameter value. If yes, perform S355; if no, perform S356.

[0173] The reference selection land parameter value is greater than the development demand land parameter value, so that it is determined whether the reference selection boundary information can be directly used.

[0174] S355: The reference selection boundary information is used as type selection boundary information.

[0175] When the reference selection land parameter value is greater than the development demand land parameter value, it means that the reference selection boundary information can be directly used, so the reference selection boundary information is used as type selection boundary information, thereby improving the accuracy of the obtained type selection boundary information.

[0176] S356: Calculate the difference between the reference selection land parameter value and the development demand land parameter value as a reference selection land deviation value.

[0177] The reference selection land deviation value refers to the deviation value corresponding to the deviation of the land area covered by the geographical type region that can be directly developed.

[0178] When the reference selection land parameter value is not greater than the development demand land parameter value, it means that the reference selection boundary information cannot be directly used, so the difference between the reference selection land parameter value and the development demand land parameter value is calculated as a reference selection land deviation value, facilitating subsequent use.

[0179] S357: Determine the remaining type land parameter value based on the remaining type information and the type land parameter value.

[0180] The remaining type land parameter value refers to the parameter value corresponding to the land area covered by the remaining single geographical type region that has not been selected.

[0181] The corresponding type land parameter value is queried from the remaining type information and used as the remaining type land parameter value, facilitating subsequent use.

[0182] S358: determining the residual selection boundary information based on the residual type land parameter value and the benchmark selection land deviation value, and combining the residual selection boundary information with the benchmark selection boundary information to form the type selection boundary information.

[0183] The residual selection boundary information refers to the boundary information corresponding to the residual geographical type region after selection.

[0184] By comparing the residual type land parameter value with the benchmark selection land deviation value, when the residual type land parameter value is greater than the benchmark selection land deviation value, the residual type land parameter value greater than the benchmark selection land deviation value is directly selected as the residual type single selection parameter value; when the residual type land parameter value is not greater than the benchmark selection land deviation value, the residual type land parameter value greater than the benchmark selection land deviation value is selected as the residual type comprehensive selection parameter value. Then, the residual type single selection parameter value or the residual type comprehensive selection parameter value is input into the preset residual selection boundary database to match the residual selection boundary information, and the residual selection boundary information is combined with the benchmark selection boundary information to form the type selection boundary information, thereby improving the accuracy of the obtained type selection boundary information.

[0185] The residual selection boundary database pre-stores a contrast table of different residual type single selection parameter values or residual type comprehensive selection parameter values and corresponding residual selection boundary information, and the residual selection boundary database is obtained by pre-input.

[0186] In step S4, in order to further ensure the rationality of the development fragmentation parameter value, it is necessary to make further separate analysis and calculation on the development fragmentation parameter value, which is specifically described as follows.

[0187] Referring to Figure 3 , the method for generating the development fragmentation parameter value includes the following steps:

[0188] S41: retrieving single boundary range information and single boundary number value based on the development initial boundary information.

[0189] The single boundary range information refers to the range information corresponding to the single boundary in the development initial boundary information, and the single boundary number value refers to the number value corresponding to the single boundary in the development initial boundary information. The development initial boundary information includes the single boundary range information and the single boundary number value.

[0190] The single boundary range information and the single boundary number value are retrieved through the development initial boundary information, which is convenient for subsequent use.

[0191] S42: retrieving single boundary coverage area value based on the single boundary range information.

[0192] The single boundary coverage area value refers to a land coverage area value corresponding to a single boundary range.

[0193] The coverage area corresponding to the boundary range is retrieved through the single boundary range information and used as the single boundary coverage area value.

[0194] S43: The single boundary coverage area values are sorted from large to small, the single boundary range information corresponding to the first single boundary coverage area value is taken as the central boundary range information, and the single boundary range information other than the central boundary range information is taken as the remaining boundary range information.

[0195] The central boundary range information and the remaining boundary range information are defined for subsequent use.

[0196] S44: The nearest distance between the central boundary range information and each remaining boundary range information is calculated and taken as the remaining boundary distance value.

[0197] The remaining boundary distance value refers to the distance value between each remaining boundary and the central boundary.

[0198] The distance between the position point corresponding to the central boundary range information and the position point corresponding to each remaining boundary range information is calculated, and the minimum distance value is selected as the remaining boundary distance value for subsequent use.

[0199] S45: Based on the comparison result of the remaining boundary distance value and the preset remaining boundary reference distance value, the number of broken remaining boundaries is determined.

[0200] The remaining boundary reference distance value refers to the minimum distance value corresponding to the broken case. The remaining boundary reference distance value is obtained by pre-input.

[0201] The comparison result of the remaining boundary distance value and the preset remaining boundary reference distance value is analyzed, and the number of remaining boundary distance values greater than the preset remaining boundary reference distance value is taken as the number of broken remaining boundaries for subsequent use.

[0202] S46: The quotient value between the number of broken remaining boundaries and the number of single boundaries is calculated and taken as the broken proportion value, and the broken proportion value is taken as the development broken parameter value.

[0203] The broken proportion value refers to the proportion of the number of remaining boundaries in the broken case to the total number of single boundaries.

[0204] The quotient value between the residual boundary broken number value and the single boundary number value is calculated as the breaking ratio value, and the breaking ratio value is used as the development breaking parameter value, thereby improving the accuracy of the obtained development breaking parameter value.

[0205] In step S46, in order to further ensure the rationality of the development breaking parameter value, it is necessary to make further separate analysis and calculation after taking the breaking ratio value as the development breaking parameter value, which is specifically described as follows.

[0206] The step after taking the breaking ratio value as the development breaking parameter value includes the following steps:

[0207] S461: Calculate the nearest distance between each residual boundary range information as the adjacent boundary distance value.

[0208] The adjacent boundary distance value refers to the distance value between each residual boundary range.

[0209] The nearest distance between each residual boundary range information is calculated as the adjacent boundary distance value for subsequent use.

[0210] S462: Determine the adjacent boundary number value based on the comparison result of the adjacent boundary distance value and the preset adjacent boundary reference distance value.

[0211] The adjacent boundary reference distance value refers to the minimum distance value between each residual boundary range when the breaking condition does not affect. The adjacent boundary reference distance value is obtained by pre-input. The adjacent boundary number value refers to the number value corresponding to the residual boundary range that is abnormally close in distance.

[0212] The adjacent boundary distance value is analyzed by comparing the adjacent boundary distance value with the preset adjacent boundary reference distance value, and the number corresponding to the adjacent boundary distance value less than the preset adjacent boundary reference distance value is taken as the adjacent boundary number value for subsequent use.

[0213] S463: Determine the adjacent boundary reference number value based on the residual boundary breaking number value.

[0214] The adjacent boundary reference number value refers to the maximum number value corresponding to the residual boundary range that is abnormally close in distance under normal conditions. Different residual boundary breaking number values correspond to different adjacent boundary reference number values.

[0215] The residual boundary breaking number value is input into the preset adjacent boundary reference number database to match the adjacent boundary reference number value for subsequent use.

[0216] The adjacent boundary reference quantity database pre-stores a comparison table of different remaining boundary fragmentation quantity values and corresponding adjacent boundary reference quantity values, and the adjacent boundary reference quantity database is obtained through pre-input.

[0217] S464: Determine whether the adjacent boundary quantity value is greater than the adjacent boundary reference quantity value. If yes, perform S465; if no, perform S468.

[0218] Wherein, by judging whether the adjacent boundary quantity value is greater than the adjacent boundary reference quantity value, it is judged whether the development fragmentation parameter value needs to be adjusted.

[0219] S465: Calculate the difference between the adjacent boundary quantity value and the adjacent boundary reference quantity value as the adjacent boundary quantity deviation value.

[0220] Wherein, the adjacent boundary quantity deviation value refers to the deviation value corresponding to the deviation of the adjacent boundary quantity value.

[0221] When the adjacent boundary quantity value is greater than the adjacent boundary reference quantity value, it means that the development fragmentation parameter value needs to be adjusted at this time, so the difference between the adjacent boundary quantity value and the adjacent boundary reference quantity value is calculated as the adjacent boundary quantity deviation value, which is convenient for subsequent use.

[0222] S466: Determine the quantity deviation influence value based on the adjacent boundary quantity deviation value.

[0223] Wherein, the quantity deviation influence value refers to the influence degree value of the deviation of the quantity on the development fragmentation parameter value. The quantity deviation influence value is used to adjust the fragmentation proportion value. Different adjacent boundary quantity deviation values correspond to different quantity deviation influence values.

[0224] The adjacent boundary quantity deviation value is input into the preset quantity deviation influence database to match the quantity deviation influence value, which is convenient for subsequent use.

[0225] The quantity deviation influence database pre-stores a comparison table of different adjacent boundary quantity deviation values and corresponding quantity deviation influence values, and the quantity deviation influence database is obtained through pre-input.

[0226] S467: Calculate the product value between the quantity deviation influence value and the fragmentation proportion value as the fragmentation proportion adjustment value, and replace the development fragmentation parameter value with the fragmentation proportion adjustment value.

[0227] Wherein, the fragmentation proportion adjustment value refers to the proportion value corresponding to the adjustment of the fragmentation proportion value.

[0228] The product value between the number deviation influence value and the crushing ratio value is calculated as a crushing ratio adjustment value, and the crushing ratio adjustment value is used to replace the development crushing parameter value, thereby improving the accuracy of the obtained development crushing parameter value.

[0229] S468: Continue to output the development crushing parameter value.

[0230] When the adjacent boundary number value is not greater than the adjacent boundary reference number value, it indicates that the development crushing parameter value does not need to be adjusted, and the development crushing parameter value is continued to be output.

[0231] In step S5, in order to further ensure the rationality of the selected geographic data information, it is necessary to make further separate analysis and calculation on the selected geographic data information. The specific process is described as follows.

[0232] Referring to Figure 4 , the generation method of the selected geographic data information includes the following steps:

[0233] S51: Determine whether the development crushing parameter value is less than the preset crushing reference parameter value. If yes, execute S52; if no, execute S53.

[0234] The crushing reference parameter value refers to the maximum value corresponding to the development crushing parameter value when the geographic data does not need to be selected. The crushing reference parameter value is obtained by pre-input.

[0235] By judging whether the development crushing parameter value is less than the preset crushing reference parameter value, it is determined whether the geographic data needs to be selected.

[0236] S52: Directly use the urban geographic data information as the selected geographic data information.

[0237] When the development crushing parameter value is less than the preset crushing reference parameter value, it indicates that the geographic data does not need to be selected, and the urban geographic data information is directly used as the selected geographic data information, thereby improving the accuracy of the obtained selected geographic data information.

[0238] S53: Calculate the difference between the development crushing parameter value and the preset crushing reference parameter value as a development crushing deviation value.

[0239] The development crushing deviation value refers to the deviation value corresponding to the development crushing parameter value when there is a deviation.

[0240] When the development crushing parameter value is not less than the preset crushing reference parameter value, it indicates that the geographic data needs to be selected, and the difference between the development crushing parameter value and the preset crushing reference parameter value is calculated as a development crushing deviation value, which is convenient for subsequent use.

[0241] S54: determining the fragmentation deviation demand range information based on the development fragmentation deviation value.

[0242] The fragmentation deviation demand range information refers to the land use range information that needs to be adjusted according to the development fragmentation deviation value. Different development fragmentation deviation values correspond to different fragmentation deviation demand range information.

[0243] The development fragmentation deviation value is input into the preset fragmentation deviation demand range database to match the fragmentation deviation demand range information, which is convenient for subsequent use.

[0244] The fragmentation deviation demand range database pre-stores a comparison table of different development fragmentation deviation values and corresponding fragmentation deviation demand range information, which is obtained by pre-input.

[0245] S55: retrieving adjacent boundary data information based on the adjacent boundary number value and the urban geographic data information.

[0246] The adjacent boundary data information refers to the geographic data information corresponding to the remaining boundary range that is abnormally close.

[0247] The geographic data information of the remaining boundary range corresponding to the adjacent boundary number value is retrieved from the urban geographic data information and used as the adjacent boundary data information, which is convenient for subsequent use.

[0248] S56: generating selected boundary data information based on the adjacent boundary data information and the fragmentation deviation demand range information, and using the selected boundary data information as selected geographic data information.

[0249] The selected boundary data information refers to the boundary information corresponding to the selected adjacent boundary data information.

[0250] The selected boundary data information is generated by analyzing the adjacent boundary data information and the fragmentation deviation demand range information, and is used as the selected geographic data information, thereby improving the accuracy of the obtained selected geographic data information.

[0251] In step S56, in order to further ensure the rationality of the selected boundary data information, it is necessary to make a further separate analysis and calculation on the selected boundary data information, which is specifically described as follows.

[0252] The method for generating the selected boundary data information includes the following steps:

[0253] S561: retrieving adjacent boundary range information based on the adjacent boundary data information.

[0254] The adjacent boundary range information refers to range information of a remaining boundary range that is abnormally close to the center boundary range information. The adjacent boundary data information includes the adjacent boundary range information.

[0255] The adjacent boundary range information is retrieved through the adjacent boundary data information, facilitating subsequent use.

[0256] S562: Determine the surrounding geographical data information based on the center boundary range information and the adjacent boundary range information.

[0257] The surrounding geographical data information refers to geographical data information of a surrounding area of the center boundary range.

[0258] The nearest distance between the center boundary range information and the adjacent boundary range information is calculated as a center-adjacent distance value. The adjacent boundary range information with a center-adjacent distance value less than a preset surrounding reference distance value is selected. The corresponding geographical data of the selected adjacent boundary range information is retrieved as the surrounding geographical data information, facilitating subsequent use.

[0259] The surrounding reference distance value refers to the maximum distance value of the surrounding area of the center boundary range information, which is obtained by pre-input.

[0260] S563: Retrieve the surrounding geographical category information and the surrounding geographical range information based on the surrounding geographical data information.

[0261] The surrounding geographical category information refers to category information to which the surrounding geographical data belongs. The surrounding geographical range information refers to range information covered by a single category of the surrounding geographical data. The surrounding geographical data information includes the surrounding geographical category information and the surrounding geographical range information.

[0262] The surrounding geographical category information and the surrounding geographical range information are retrieved through the surrounding geographical data information, facilitating subsequent use.

[0263] S564: Determine the category-affected disaster information based on the surrounding geographical category information.

[0264] The category-affected disaster information refers to natural disaster information that affects the category to which the surrounding geographical data belongs. Different surrounding geographical category information corresponds to different category-affected disaster information.

[0265] The surrounding geographical category information is input into a preset category-affected disaster database to match the category-affected disaster information, facilitating subsequent use.

[0266] The category-affected disaster database pre-stores a comparison table of different surrounding geographical category information and corresponding category-affected disaster information. The category-affected disaster database is obtained by pre-input.

[0267] S565: generating disaster adjustment range information based on the category influence disaster information and the surrounding geographical range information.

[0268] The disaster adjustment range information refers to the land use range information corresponding to the adjustment of the range according to the disaster situation.

[0269] By analyzing the category influence disaster information and the surrounding geographical range information, the disaster adjustment range information is generated, which is convenient for subsequent use.

[0270] The specific generation steps of the disaster adjustment range information are referred to S5651 to S5656.

[0271] S566: determining surrounding selection data information based on the disaster adjustment range information and the broken bias demand range information, and taking the surrounding selection data information as the selection boundary data information.

[0272] The surrounding selection data information refers to the geographical data information corresponding to the selection of the disaster adjustment range information.

[0273] The corresponding coverage area is retrieved through the disaster adjustment range information and taken as the disaster adjustment range area value, and the corresponding coverage area is retrieved through the broken bias demand range information and taken as the demand range area value. Then, according to the demand range area value, the single or sum value greater than the demand range area value corresponding to the disaster adjustment range information is selected as the disaster adjustment selection range information, and the corresponding geographical data is retrieved through the disaster adjustment selection range information and taken as the surrounding selection data information. Then, the surrounding selection data information is taken as the selection boundary data information, thereby improving the accuracy of the obtained selection boundary data information.

[0274] In step S565, in order to further ensure the rationality of the disaster adjustment range information, it is necessary to make further separate analysis and calculation on the disaster adjustment range information. The specific steps are as follows.

[0275] The generation method of the disaster adjustment range information includes the following steps:

[0276] S5651: determining the disaster influence time period based on the category influence disaster information.

[0277] The disaster influence time period refers to the time period corresponding to the influence of the disaster. Different category influence disaster information corresponds to different disaster influence time periods.

[0278] The category influence disaster information is input into the preset disaster influence time database to match the disaster influence time period, which is convenient for subsequent use.

[0279] The disaster influence time database pre-stores disaster influence information of different categories and corresponding disaster influence time periods, and is obtained through pre-input.

[0280] S5652: retrieve development category information based on development demand information.

[0281] The development category information refers to the building function category information required for development, and the development demand information includes the development category information.

[0282] The development category information is retrieved through the development demand information, which is convenient for subsequent use.

[0283] S5653: determine the development category demand time period based on the development category information.

[0284] The development category demand time period refers to the time period corresponding to the operation of the development category. Different development category information corresponds to different development category demand time periods.

[0285] The development category demand time period is matched by inputting the development category information into the preset development category demand time database, which is convenient for subsequent use.

[0286] The development category demand time database pre-stores a comparison table of different development category information and corresponding development category demand time periods, and is obtained through pre-input.

[0287] S5654: determine the overlapping time period based on the disaster influence time period and the development category demand time period.

[0288] The overlapping time period refers to the time period corresponding to the overlap of the disaster influence time period and the development category demand time period.

[0289] The overlap between the disaster influence time period and the development category demand time period is analyzed, and the time period overlapping between the two is taken as the overlapping time period.

[0290] S5655: determine the overlapping time influence value based on the overlapping time period.

[0291] The overlapping time influence value refers to the influence degree value of the overlapping time on the normal operation of the development category. Different overlapping time periods correspond to different overlapping time influence values.

[0292] The overlapping time influence value is matched by inputting the overlapping time period into the preset overlapping time influence database, which is convenient for subsequent use.

[0293] The coincidence time influence database pre-stores a comparison table of different coincidence time periods and corresponding coincidence time influence values, and the coincidence time influence database is obtained by pre-input.

[0294] S5656: based on the comparison result of the coincidence time influence value and the preset time reference influence value, selecting the surrounding geographical range information to form surrounding selected range information, and taking the surrounding selected range information as the disaster adjustment range information.

[0295] The time reference influence value refers to the maximum influence degree value corresponding to the normal operation of the development type when the coincidence time has no influence. The time reference influence value is obtained by pre-input. The surrounding selected range information refers to the range information corresponding to the selected surrounding geographical range information.

[0296] By analyzing the comparison result of the coincidence time influence value and the preset time reference influence value, and selecting the surrounding geographical range information corresponding to the coincidence time influence value less than the preset time reference influence value to form the surrounding selected range information, and taking the surrounding selected range information as the disaster adjustment range information, the accuracy of the obtained disaster adjustment range information is improved.

[0297] Based on the same inventive concept, the embodiment of the present application provides a town development boundary adjustment system based on spatial analysis, comprising:

[0298] The acquisition module is used for acquiring demand development town information and development demand information.

[0299] The memory stores a program for realizing the above-mentioned town development boundary adjustment method based on spatial analysis.

[0300] The processor loads and executes the program stored in the memory.

[0301] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the above-mentioned system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

[0302] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application should be considered as falling within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principle of the present application should also be considered as falling within the protection scope of the present application.

Claims

1. A method for adjusting urban development boundaries based on spatial analysis, characterized in that, include: S1: Collect information on towns and development needs; S2: Based on the aforementioned requirements, develop urban information retrieval systems to obtain basic urban land use information and urban geographic data; S3: Generate initial development boundary information based on the urban basic land use information, the urban geographic data information, and the development demand information; S4: Generate development failure parameter values ​​based on the initial development boundary information; S5: Generate selected geographic data information based on the development fragmentation parameter values ​​and the town geographic data information; S6: Determine the selected geographic boundary information based on the selected geographic data information; S7: Determine development adjustment boundary information based on the selected geographical boundary information and the initial development boundary information, and output the development adjustment boundary information; The method for generating the development and breakage parameter values ​​includes: S41: Based on the initial boundary information, retrieve the single boundary range information and the single boundary value; S42: Retrieve the coverage area value of a single boundary based on the single boundary range information; S43: Sort the single boundary coverage area values ​​from largest to smallest, and take the single boundary range information corresponding to the single boundary coverage area value with the first sort as the center boundary range information, and take the single boundary range information other than the center boundary range information as the remaining boundary range information. S44: Calculate the shortest distance between the central boundary range information and each of the remaining boundary range information and use it as the remaining boundary distance value; S45: Based on the comparison result between the remaining boundary distance value and the preset remaining boundary reference distance value, determine the number of remaining boundary breaks; S46: Calculate the quotient between the remaining boundary breakage number and the single boundary breakage number and use it as the breakage ratio value, and use the breakage ratio value as the development breakage parameter value; It also includes a step following the step of using the crushing ratio value as the development crushing parameter value: S461: Calculate the nearest distance between each of the remaining boundary range information and use it as the adjacent boundary distance value; S462: Based on the comparison result between the adjacent boundary distance value and the preset adjacent boundary reference distance value, determine the number of adjacent boundaries; S463: Determine the reference values ​​of adjacent boundaries based on the remaining boundary breakage values; S464: Determine whether the value of the adjacent boundary is greater than the reference value of the adjacent boundary; S465: If yes, calculate the difference between the number of adjacent boundaries and the reference number of adjacent boundaries and use it as the deviation value of the number of adjacent boundaries. S466: Determine the influence value of the number deviation based on the number deviation value of adjacent boundaries; S467: Calculate the product between the number deviation influence value and the crushing ratio value and use it as the crushing ratio adjustment value, and replace the development crushing parameter value with the crushing ratio adjustment value; S468: If not, continue to output the development failure parameter values; The method for generating selected geographic data information includes: S51: Determine whether the development crushing parameter value is less than the preset crushing benchmark parameter value; S52: If yes, then the town geographic data information is directly used as the selected geographic data information; S53: If not, calculate the difference between the development crushing parameter value and the preset crushing benchmark parameter value and use it as the development crushing deviation value; S54: Determine the required range of breakage deviation based on the aforementioned breakage deviation value; S55: Retrieve adjacent boundary data information based on the numerical value of the adjacent boundaries and the town geographic data information; S56: Generate selected boundary data information based on the adjacent boundary data information and the broken deviation requirement range information, and use the selected boundary data information as the selected geographical data information; The method for generating the selected boundary data information includes: S561: Retrieve adjacent boundary range information based on the adjacent boundary data information; S562: Determine surrounding geographic data information based on the central boundary range information and the adjacent boundary range information; S563: Retrieve information on the types and extent of surrounding geographical locations based on the surrounding geographical data information; S564: Determine the type of disaster impact information based on the surrounding geographical information; S565: Generate disaster adjustment range information based on the disaster impact information of the aforementioned types and the surrounding geographical range information; S566: Determine surrounding selection data information based on the disaster adjustment range information and the breakage deviation demand range information, and use the surrounding selection data information as the selection boundary data information; The method for generating the disaster adjustment scope information includes: S5651: Determine the time period of disaster impact based on the disaster impact information of the aforementioned types; S5652: Retrieve development type information based on the aforementioned development requirement information; S5653: Determine the time period for development type requirements based on the aforementioned development type information; S5654: Determine the overlapping time period based on the disaster impact time period and the development type demand time period; S5655: Determine the overlap time impact value based on the overlap time period; S5656: Based on the comparison result between the overlapping time influence value and the preset time base influence value, the surrounding geographical range information is selected to form the surrounding selection range information, and the surrounding selection range information is used as the disaster adjustment range information.

2. The method for adjusting urban development boundaries based on spatial analysis according to claim 1, characterized in that, The method for generating the initial boundary information for development includes: S31: Retrieve basic land use parameter values ​​and basic land use scope information based on the aforementioned urban basic land use information; S32: Retrieve the development requirement multiplier based on the aforementioned development requirement information; S33: Determine the development demand land use parameter value based on the development demand multiple and the basic land use parameter value; S34: Determine the surrounding type information of the basic land use area and the type land use parameter values ​​based on the basic land use scope information and the urban geographic data information; S35: Generate type selection boundary information based on the development requirement land use parameter value, the basic land use surrounding type information and the type land use parameter value, and use the type selection boundary information as the initial development boundary information.

3. The method for adjusting urban development boundaries based on spatial analysis according to claim 2, characterized in that, It also includes a step following the step of retrieving the development requirement multiplier based on the development requirement information: S321: Based on the aforementioned requirements, retrieve urban population parameter values ​​from urban information; S322: Determine the urban population change value based on the urban population parameter value; S323: Determine the baseline multiple of population change based on the aforementioned urban population change value; S324: Determine whether the development demand multiple is greater than the population change benchmark multiple; S325: If yes, calculate the difference between the development demand multiple and the population change benchmark multiple and use it as the multiple deviation value; S326: Calculate the product between the multiple deviation value and the population change benchmark multiple value, and use it as the multiple adjustment value; S327: Calculate the difference between the development requirement multiple and the multiple adjustment value and use it as the multiple correction value, and replace the development requirement multiple with the multiple correction value; S328: If not, continue to output the development requirement multiplier value.

4. The method for adjusting urban development boundaries based on spatial analysis according to claim 2, characterized in that, The method for generating the type selection boundary information includes: S351: Determine the benchmark selection type information and remaining type information based on the basic land use surrounding type information and the preset development benchmark type information; S352: Determine the benchmark selection land use parameter value based on the benchmark selection type information and the type land use parameter value; S353: Determine the reference selection boundary information based on the reference selection type information; S354: Determine whether the benchmark selected land use parameter value is greater than the development demand land use parameter value; S355: If yes, then the reference selection boundary information is used as the type selection boundary information; S356: If not, calculate the difference between the benchmark selected land use parameter value and the development demand land use parameter value and use it as the benchmark selected land use deviation value; S357: Determine the remaining type land use parameter values ​​based on the remaining type information and the type land use parameter values; S358: Determine the remaining selection boundary information based on the remaining type land use parameter value and the benchmark selection land use deviation value, and combine the remaining selection boundary information with the benchmark selection boundary information to form the type selection boundary information.

5. A system for adjusting urban development boundaries based on spatial analysis, characterized in that, include: The data collection module is used to collect information on towns and development needs. The memory stores a program for implementing a spatial analysis-based urban development boundary adjustment method as described in any one of claims 1 to 4; The processor loads and executes programs stored in memory.

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