Geographic information surveying and mapping method and system based on satellite remote sensing

Abstract

The invention discloses a geographic information surveying and mapping method and system based on satellite remote sensing, and relates to the technical field of geographic surveying and mapping, and the method comprises the steps of satellite remote sensing screening analysis, satellite remote sensing perception analysis, geographic surveying and mapping state analysis and early warning prompt. Further, adaptive satellite remote sensing is obtained for wetland surveying and mapping screening, surveying and mapping perceptual force corresponding to the satellite remote sensing is judged, then assistance is provided in time when surveying and mapping accuracy is insufficient, geographic surveying and mapping corresponding to the wetland are effectively guaranteed, meanwhile, geographic surveying and mapping conditions corresponding to the wetland are further understood and analyzed, and the geological surveying and mapping accuracy is improved. Therefore, the trend condition of corresponding change of the current wetland is known, targeted maintenance is carried out, reduction of the wetland is effectively reduced, efficient wetland geographic data surveying and mapping are realized, and the current situation of the wetland is known in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geographic mapping, in particular to a geographic information mapping method and system based on satellite remote sensing. BACKGROUND

[0002] With the continuous development of science and technology, the application coverage of satellite remote sensing technology is also increasingly wide, and gradually becomes an important mapping means in many fields. By applying satellite remote sensing technology to geographic information mapping, the area change and change reason of wetlands can be efficiently understood, so that corresponding measures can be taken to effectively reduce the reduction of wetland area, and comprehensive and efficient geographic information mapping can be realized based on satellite remote sensing.

[0003] The prior art such as the invention patent application with publication number CN116206216B discloses a vector geographic information collection method and system based on remote sensing image. The vector geographic information collection system includes a server, a remote sensing image collection and analysis module, a remote sensing image quality analysis module, a vector graphic conversion and analysis module, and an image collection cycle monitoring module. The present application collects and analyzes remote sensing images through the remote sensing image collection and analysis module, and the remote sensing image quality analysis module analyzes the quality of the remote sensing images of the required monitoring area and reasonably marks them, which facilitates the corresponding monitoring personnel to select and use the remote sensing images. The image collection cycle monitoring module monitors the collection cycle of the remote sensing images, which facilitates the corresponding monitoring personnel to take corresponding measures in time to improve the subsequent collection conditions. The vector graphic conversion and analysis module realizes automatic and accurate analysis of the change condition of the monitoring area, which facilitates the corresponding monitoring personnel to conduct targeted investigation of the corresponding monitoring area in time.

[0004] For the above-mentioned scheme, there are the following technical problems: the above-mentioned invention mainly analyzes the quality of remote sensing images, which facilitates the corresponding monitoring personnel to select and use the remote sensing images, and realizes the targeted investigation of the monitoring area. However, it does not measure and map the overall structure of the target according to the demand, so as to select suitable satellite remote sensing for the mapping target. It cannot provide effective satellite remote sensing mapping for wetlands, and does not analyze the satellite remote sensing allocated to the wetlands in terms of mapping perception. It cannot discover the problem of inaccurate sensing of satellite remote sensing in mapping in time, and there may be a situation that the mapping data does not match the actual data. It does not solve the problem of inaccurate sensing of satellite remote sensing in mapping, does not equip the satellite remote sensing with corresponding ground auxiliary equipment when mapping the wetlands, and cannot perfect the satellite remote sensing geographic mapping of the wetlands. It does not conduct in-depth analysis on the changes after mapping the wetlands, cannot know the current change trend of the wetlands, cannot maintain the wetlands in time under the condition of wetland reduction, cannot effectively curb the reduction of the wetlands, and aggravates the loss of the reduction of the wetlands. SUMMARY

[0005] In view of the above technical deficiencies, the present application aims to provide a satellite remote sensing-based geographic information surveying and mapping method and system.

[0006] To solve the above technical problems, the present application adopts the following technical solutions: The present application provides a satellite remote sensing-based geographic information surveying and mapping method, comprising: S1, satellite remote sensing screening analysis: obtaining overall data under a wetland scene for a surveying and mapping target, and then screening satellite remote sensing corresponding to the surveying and mapping of the wetland.

[0007] S2, satellite remote sensing sensing analysis: based on the satellite remote sensing screened under the surveying and mapping of the wetland, and then judging the surveying and mapping sensing ability of the satellite remote sensing corresponding to the wetland, when the surveying and mapping sensing ability of the satellite remote sensing corresponding to the wetland is insufficient, then analyzing the ground auxiliary equipment under the surveying and mapping of the satellite remote sensing corresponding to the wetland.

[0008] S3, geographic surveying and mapping state analysis: based on the satellite remote sensing and the ground auxiliary equipment equipped for the surveying and mapping of the wetland, obtaining geographic images corresponding to the surveying and mapping of the wetland, and then predicting the area change corresponding to the wetland, analyzing the reasons for the area reduction trend of the wetland, and analyzing the maintenance measures for the area reduction trend of the wetland.

[0009] S4, early warning prompt: when the area change corresponding to the wetland presents a reduction trend, an early warning prompt is given.

[0010] In a second aspect, the present application provides a satellite remote sensing-based geographic information surveying and mapping system, comprising: a satellite remote sensing screening analysis module, configured to obtain overall data under a wetland scene for a surveying and mapping target, and then screen satellite remote sensing corresponding to the surveying and mapping of the wetland.

[0011] A satellite remote sensing sensing analysis module is configured to judge the surveying and mapping sensing ability of the satellite remote sensing corresponding to the wetland, when the surveying and mapping sensing ability of the satellite remote sensing corresponding to the wetland is insufficient, then analyze the ground auxiliary equipment under the surveying and mapping of the satellite remote sensing corresponding to the wetland.

[0012] A geographic surveying and mapping state analysis module is configured to obtain geographic images corresponding to the surveying and mapping of the wetland, and then predict the area change corresponding to the wetland, analyze the reasons for the area reduction trend of the wetland, and analyze the maintenance measures for the area reduction trend of the wetland.

[0013] An early warning prompt module is configured to give an early warning prompt when the area change corresponding to the wetland presents a reduction trend.

[0014] Compared with the prior art, the present application has the beneficial effects that: 1, the present application provides a geographic information surveying and mapping method and system based on satellite remote sensing, by acquiring and analyzing the overall construction corresponding to the surveying and mapping target, and then selecting the satellite remote sensing suitable for wetland surveying and mapping, and judging the perception of satellite remote sensing corresponding to the surveying and mapping, and then providing timely assistance when the surveying and mapping is not accurate, effectively ensuring the geographic surveying and mapping of the wetland, and further analyzing the geographic surveying and mapping of the wetland, and then knowing the trend of the current wetland change, so as to carry out targeted maintenance, so as to effectively reduce the reduction of the wetland, realize efficient geographic data surveying and mapping of the wetland, and realize timely understanding of the current situation of the wetland.

[0015] 2, based on the overall data of the surveying and mapping target corresponding construction, and then selecting the satellite remote sensing corresponding to the wetland surveying and mapping, so as to realize the corresponding satellite remote sensing for the wetland surveying and mapping, so as to ensure the effective surveying and mapping of the wetland.

[0016] 3, by analyzing and judging the perception of satellite remote sensing equipped for the wetland, and then efficiently understanding the perception of satellite remote sensing, so as to realize timely perception surveying and mapping assistance, so as to improve the accuracy of the geographic surveying and mapping of the wetland, and ensure the comprehensive and accurate effective surveying and mapping of the wetland.

[0017] 4, based on the selection of satellite remote sensing and the further auxiliary improvement under satellite remote sensing surveying and mapping, and then obtaining the surveying and mapping geographic data corresponding to the wetland, and analyzing the area change trend corresponding to the wetland, so as to understand the reasons for the reduction, so as to carry out corresponding maintenance under the reasons, realize effective containment under the reduction of the wetland area, reduce the loss caused by the reduction of the wetland, ensure the current state of the wetland, and realize efficient and comprehensive geographic satellite remote sensing surveying and mapping of the wetland. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 The present application is a method for implementing step flowchart.

[0020] Figure 2 The present application is a system structure connection diagram DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0022] Please refer to Figure 1 As shown in the figure, a geographic information surveying and mapping method based on satellite remote sensing, comprising: S1, satellite remote sensing screening analysis: obtaining overall data of the surveying and mapping target under the wetland scene, and then screening satellite remote sensing corresponding to the surveying and mapping of the wetland.

[0023] It should be noted that the overall data constructed by the surveying and mapping target wetland composition is obtained from the database, and the overall construction of the wetland is divided in organization, and then the physical data, ecological data and spatial data corresponding to the wetland composition are obtained, and the overall data corresponding to the wetland is obtained by the physical data, ecological data and spatial data; the physical data includes land cover type, terrain and elevation, etc.; the ecological data includes vegetation type, biological type and soil salinization degree, etc.; the spatial data includes spatial resolution and time resolution, etc.

[0024] It should be further noted that the surveying and mapping target is different, and the satellite remote sensing adapted is different, for example, if the surveying and mapping target is water body or building, it is suitable for optical remote sensing, if the surveying and mapping target is crop type identification, it is suitable for multispectral remote sensing.

[0025] It should be further noted that, for example, single satellite remote sensing can be optical remote sensing or laser radar remote sensing; combined satellite remote sensing can be multispectral and thermal infrared combination or optical and SAR combination, etc.

[0026] It should be further noted that the comprehensive data set corresponding to the surveying and mapping of each satellite remote sensing is formulated by professional satellite researchers.

[0027] In specific embodiments of the present application, the satellite remote sensing corresponding to the wetland survey is screened out, and the specific screening process is as follows: the overall data corresponding to the wetland is compared with the comprehensive data set corresponding to the survey of each satellite remote sensing stored in the database, if the overall data corresponding to the wetland exists only in one comprehensive data set corresponding to the survey of the satellite remote sensing stored in the database, it is determined that the survey requirement of the current wetland corresponds to single satellite remote sensing, then the satellite remote sensing is used as the satellite remote sensing corresponding to the survey of the wetland, if the overall data corresponding to the wetland is the same as the data in the comprehensive data set corresponding to the survey of each satellite remote sensing stored in the database, it is determined that the survey requirement of the current wetland corresponds to combined satellite remote sensing, then the satellite remote sensing corresponding to each comprehensive data set containing overall data is used as the satellite remote sensing corresponding to the survey of the wetland, and the satellite remote sensing set corresponding to the survey of the wetland is obtained, so as to analyze the satellite remote sensing corresponding to the survey of the wetland screened out.

[0028] Based on the overall data corresponding to the survey target, the satellite remote sensing corresponding to the survey of the wetland is screened out, so as to realize the corresponding satellite remote sensing equipped for the survey of the wetland, so as to guarantee the effective survey of the wetland.

[0029] S2, satellite remote sensing sensing analysis: based on the satellite remote sensing screened out under the survey of the wetland, the survey sensing of the satellite remote sensing corresponding to the wetland is judged, when the survey sensing of the satellite remote sensing corresponding to the wetland is insufficient, the ground auxiliary equipment under the survey of the satellite remote sensing corresponding to the wetland is analyzed.

[0030] It should be noted that the current satellite remote sensing technology cannot achieve complete survey coverage, and there may be cases where fine spectrum cannot be distinguished, so it is necessary to add corresponding ground auxiliary equipment when using satellite remote sensing technology for surveying, so as to guarantee the geographical information surveying accuracy of the survey target.

[0031] In specific embodiments of the present application, the survey sensing of the satellite remote sensing corresponding to the wetland is judged, and the specific judgment process is as follows: based on the survey of the satellite remote sensing to the wetland, each measured type data under the survey of the satellite remote sensing corresponding to the wetland is obtained, the each measured type data under the survey of the satellite remote sensing corresponding to the wetland is compared with each actual standard type data defined corresponding to the wetland, if the certain measured type data under the survey of the satellite remote sensing corresponding to the wetland is different from the certain actual standard type data defined corresponding to the wetland, it is determined that the survey sensing of the satellite remote sensing corresponding to the wetland is insufficient, and the ground auxiliary equipment is needed to perform subsequent geographical surveying, if the certain measured type data under the survey of the satellite remote sensing corresponding to the wetland is not different from the certain actual standard type data defined corresponding to the wetland, it is determined that the survey sensing of the satellite remote sensing corresponding to the wetland is correct, so as to judge the survey sensing of the satellite remote sensing corresponding to the wetland.

[0032] It should be noted that the actual standard type data of wetland corresponding definition is set by professional wetland researchers; the actual standard type data of wetland is used to judge whether the definition of each measured type data under the corresponding wetland mapping of satellite remote sensing is accurate.

[0033] It should be noted that the ground object spectrum data set is set by professional manufacturers when manufacturing each ground auxiliary equipment; the ground object spectrum data set is used to more clearly show whether the current ground auxiliary equipment contains the spectrum data existing in the satellite remote sensing, so as to match the corresponding ground auxiliary equipment when the satellite remote sensing mapping is insufficient.

[0034] In the specific embodiment of the present application, the analysis obtains the ground auxiliary equipment corresponding to the satellite remote sensing mapping of the wetland, and the specific analysis process is as follows: when the satellite remote sensing mapping of the corresponding wetland has insufficient sensing ability, the mapping band under the satellite remote sensing mapping of the corresponding wetland with insufficient sensing ability is obtained, and the measured spectrum data corresponding to the mapping band is extracted, the measured spectrum data of the satellite remote sensing mapping of the corresponding wetland is compared with the ground object spectrum data set corresponding to each ground auxiliary equipment, if the measured spectrum data of the satellite remote sensing mapping of the corresponding wetland is in the spectrum data set corresponding to the ground auxiliary equipment, the spectrum data set corresponding to the ground auxiliary equipment is used as the ground auxiliary equipment under the satellite remote sensing mapping of the corresponding wetland, and the ground auxiliary equipment corresponding to the spectrum data set is obtained by analyzing the ground auxiliary equipment corresponding to the satellite remote sensing mapping of the corresponding wetland.

[0035] Through the analysis and judgment of the sensing ability of the satellite remote sensing equipped for the wetland, the sensing situation of the satellite remote sensing can be efficiently understood, so that timely sensing mapping assistance can be achieved, so as to improve the accuracy of the corresponding geographic mapping of the wetland, and ensure that the wetland is effectively and accurately mapped.

[0036] S3, geographic mapping state analysis: based on the satellite remote sensing and ground auxiliary equipment equipped for the wetland mapping, the geographic image corresponding to the wetland mapping is obtained, and the area change corresponding to the wetland is predicted, the reason of the area reduction trend of the wetland is analyzed, and the maintenance measures of the area reduction trend of the wetland are analyzed.

[0037] In the specific embodiment of the present application, the geographical image corresponding to the wetland mapping is obtained, and the specific acquisition process is as follows: A1, based on the spectral difference of satellite remote sensing corresponding to the wetland mapping, the supplementary mapping area of the ground auxiliary equipment corresponding to the wetland is obtained, and the satellite remote sensing corresponding to the initial mapping wetland is obtained. The wetland image is mapped under each preset time interval, the wetland images under each preset time interval are arranged in order of time sequence, the same wetland image is obtained in advance, the image in the first time sequence is reserved, and the wetland image is obtained. The reserved time interval is obtained, and the time interval between each reserved time interval is used as the preset time interval reference of the satellite remote sensing and the ground auxiliary equipment corresponding to the wetland mapping, so as to obtain the supplementary mapping area and the mapping time interval corresponding to the satellite remote sensing and the ground auxiliary equipment.

[0038] A2, according to the analysis above, the mapping corresponding to the wetland is carried out, and the geographical image corresponding to the wetland mapping is obtained, and the band data corresponding to the wetland mapping is extracted, including visible light band, visible infrared band and microwave band.

[0039] It should be noted that the professional mapping personnel sets the preset time interval under the initial mapping wetland.

[0040] It should be noted that, for example, the preset time interval under the initial mapping wetland is 8:02, 8:04, 8:06 and 8:08, when the images of 8:02 and 8:04 are the same, the images of 8:06 and 8:08 are the same, the images of 8:02 and 8:06 are reserved, and the reserved time interval is obtained, and the reference mapping time interval corresponding to the wetland mapping is obtained based on the time difference between each reserved time interval, that is, 4 minutes.

[0041] It should be noted that the band data in the geographical image corresponding to the wetland mapping is extracted by using remote sensing image processing software, such as ENVI or ArcGIS.

[0042] In the specific embodiment of the present application, the area change corresponding to the wetland is predicted, and the specific prediction process is as follows: based on the mapping band data corresponding to the wetland, and the standard state interval corresponding to the historical wetland mapping band data is obtained from the database, and the comprehensive state value of the wetland mapping is obtained by analysis, if the comprehensive state value of the wetland mapping is 1, it is determined that the area change of the wetland is increasing, if the comprehensive state value of the wetland mapping is 0, it is determined that the area change of the wetland is decreasing, then the current wetland reduction needs to be further analyzed to prevent the expansion of the wetland reduction trend, so as to predict the area change of the wetland.

[0043] In specific embodiments of the present application, the analysis obtains the corresponding surveying and mapping comprehensive state value of the wetland, and the specific analysis process is as follows: through the calculation formula: , wherein is the corresponding surveying and mapping comprehensive state value of the wetland, is the standard state interval corresponding to the surveying and mapping band data of the historical wetland, is the band data corresponding to the wetland surveying and mapping by the satellite remote sensing and ground auxiliary equipment, is the number of the band data, , 1, 2, and 3 are the visible light band, the visible infrared band, and the microwave band, respectively. The visible light band corresponds to the visible light band standard state interval, the visible infrared band corresponds to the visible infrared band standard state interval, and the microwave band corresponds to the microwave band standard state interval.

[0044] It should be noted that the standard state interval is set by professional wetland management personnel, and the standard state interval is a reference value for determining the change in the corresponding area of the current wetland.

[0045] In specific embodiments of the present application, the analysis obtains the reason for the area reduction trend of the corresponding wetland, and the specific analysis process is as follows: obtaining the corresponding band of each historical wetland under the preset time limit, and arranging the bands between each historical wetland and the current wetland in order of time limit, to obtain the wave reduction value of the corresponding band from the comprehensive historical wetland to the current wetland. The wave reduction value corresponding to the wetland is compared with the reference wave reduction value corresponding to the wetland stored in the database. If the wave reduction value corresponding to the wetland is the same as the reference wave reduction value corresponding to the wetland stored in the database, the reduction reason of the reference wave reduction value corresponding to the wetland is taken as the reason for the area change of the current wetland showing a reduction trend.

[0046] The reference reduction feature data set corresponding to the reduction reason is extracted from the database, and the reference reduction feature data set is compared with the reduction feature data obtained by the satellite remote sensing and ground auxiliary equipment corresponding to the wetland surveying and mapping. If the reference reduction feature data set contains the reduction feature data obtained by the satellite remote sensing and ground auxiliary equipment corresponding to the wetland surveying and mapping, it is determined that the reduction reason is the reason for the area change of the wetland showing a reduction trend.

[0047] It should be noted that the reduction feature data obtained by the satellite remote sensing and ground auxiliary equipment corresponding to the wetland surveying and mapping includes the characteristics of the water body showing eutrophication caused by wastewater discharge or the characteristics of the damaged area of the wetland caused by reclamation; when the satellite remote sensing surveying obtains the green light reflectivity of the water body corresponding to the wetland, and compares the green light reflectivity of the water body corresponding to the wetland with the normal water body green light reflectivity, if it is stronger than the normal water body green light reflectivity, it is determined that the water body corresponding to the wetland is eutrophication; based on the satellite remote sensing surveying, the land image corresponding to the wetland is obtained, and compared with the historical wetland land image stored in the database, and then the damaged area characteristics corresponding to the wetland are obtained.

[0048] It should be noted that the professional survey personnel presets the time limit and reference reduction feature data set.

[0049] In specific embodiments of the present application, the maintenance measures under the area reduction trend of the wetland are analyzed as follows: based on the reasons for the change of the area of the wetland showing a reduction trend, the reason type under the area reduction trend of the wetland is compared with each historical reason type corresponding to the wetland reduction maintenance measures stored in the database, if the reason type under the area reduction trend of the wetland is the same as a certain historical reason type corresponding to the wetland reduction maintenance measures stored in the database, the reduction maintenance measures corresponding to the historical reason type are taken as the maintenance measures under the area reduction trend of the wetland, and the wetland is continuously managed and satellite remote sensing monitoring is continuously performed in real time, so as to analyze the maintenance measures under the area reduction trend of the wetland.

[0050] It should be noted that based on the enumerated reduction feature data, the corresponding maintenance measures are illustrated by examples, if the current wetland reduction reason is water eutrophication, the supervision intensity of prohibiting sewage discharge is comprehensively strengthened, the patrol intensity of waste water discharge is enhanced, and the punishment intensity of waste water discharge is intensified.

[0051] Based on the screening and further auxiliary improvement of satellite remote sensing, the surveying and mapping geographic data corresponding to the wetland are obtained, the area change trend of the wetland is analyzed, the reduction reasons are understood, the corresponding maintenance under the reasons is carried out, the effective containment under the area reduction of the wetland is achieved, the loss caused by the reduction of the wetland is reduced, the current state of the wetland is protected, and efficient and comprehensive geographic satellite remote sensing surveying and mapping of the wetland is realized.

[0052] S4, early warning: when the area change of the wetland shows a reduction trend, early warning is performed.

[0053] Please refer to Figure 1 As shown in FIG. 1, a geographic information surveying and mapping system based on satellite remote sensing includes a satellite remote sensing screening and analysis module, a satellite remote sensing sensing and analysis module, a geographic surveying and mapping state analysis module, an early warning module and a database.

[0054] The satellite remote sensing screening and analysis module is connected with the satellite remote sensing sensing and analysis module and the database respectively, the satellite remote sensing sensing and analysis module is connected with the geographic surveying and mapping state analysis module and the database respectively, and the geographic surveying and mapping state analysis module is connected with the early warning module and the database respectively.

[0055] The satellite remote sensing screening and analysis module is used to obtain the overall data under the wetland scene of the surveying and mapping target, and then the satellite remote sensing corresponding to the surveying and mapping of the wetland is screened.

[0056] The satellite remote sensing sensing analysis module is used for judging the mapping sensing ability of satellite remote sensing corresponding to the wetland, and when the mapping sensing ability of satellite remote sensing corresponding to the wetland is insufficient, the ground auxiliary equipment under the satellite remote sensing mapping of the wetland is analyzed.

[0057] The geographic mapping state analysis module is used for obtaining the geographic image corresponding to the mapping of the wetland, and then predicting the area change corresponding to the wetland, analyzing the reason of the area reduction trend of the wetland, and analyzing the maintenance measures of the area reduction trend of the wetland.

[0058] The early warning prompt module is used for early warning when the area change of the wetland presents a reduction trend.

[0059] The database stores overall data, comprehensive data sets, each measured type data, each actual standard type data, mapping band, measured spectrum data, ground object spectrum data set, band data, standard state interval, each reference band reduction value, reference reduction characteristic data set and wetland reduction maintenance measures.

[0060] In the embodiment of the application, the overall construction corresponding to the mapping target is obtained and analyzed, and then the satellite remote sensing suitable for the wetland mapping is screened, and the sensing ability of satellite remote sensing corresponding to the mapping is judged, so that the auxiliary equipment is equipped in time when the mapping sensing is insufficient, the geographic mapping of the wetland is effectively ensured, the geographic mapping of the wetland is further analyzed, the trend of the current wetland is known, and targeted maintenance is performed to effectively reduce the reduction of the wetland, realize efficient geographic data mapping of the wetland, and realize timely understanding of the current situation of the wetland.

[0061] The above content is only an example and description of the concept of the application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as the concept of the application is not deviated or beyond the scope defined in the specification, which should belong to the protection scope of the application.

Claims

1. A geographic information mapping method and system based on satellite remote sensing, characterized in that, include: S1. Satellite remote sensing screening and analysis: Obtain overall data for wetland scenes as the mapping target, and then screen to obtain the corresponding satellite remote sensing data of the wetland. S2. Satellite Remote Sensing Perception Analysis: Based on the satellite remote sensing data selected under wetland mapping, the mapping perception capability of the corresponding wetland is evaluated. When the mapping perception capability of the corresponding wetland is insufficient, the ground auxiliary equipment under the corresponding satellite remote sensing mapping is analyzed. S3. Geographic mapping status analysis: Based on the satellite remote sensing and ground auxiliary equipment equipped for wetland mapping, the geographic images corresponding to the wetland mapping are obtained, and then the area change of the corresponding wetland is predicted. The reasons for the wetland area reduction trend are analyzed, and the maintenance measures under the wetland area reduction trend are analyzed. S4. Early Warning: An early warning will be issued when the area of ​​wetlands shows a decreasing trend.

2. The geographic information mapping method and system based on satellite remote sensing as described in claim 1, characterized in that, The screening process yields satellite remote sensing data corresponding to the wetlands. The specific screening process is as follows: The overall data corresponding to the wetland is compared with the comprehensive data sets corresponding to each satellite remote sensing survey stored in the database. If the overall data corresponding to the wetland exists only in one comprehensive data set corresponding to a certain satellite remote sensing survey stored in the database, it is determined that the current wetland survey requirement is a single type of satellite remote sensing, and that satellite remote sensing is used as the satellite remote sensing for wetland surveying. If the overall data corresponding to the wetland is the same as the data in at least two comprehensive data sets corresponding to each satellite remote sensing survey stored in the database, it is determined that the current wetland survey requirement is to equip a combined type of satellite remote sensing, and the satellite remote sensing corresponding to each comprehensive data set containing the overall data is used as the satellite remote sensing for wetland surveying, thus obtaining the set of satellite remote sensing for wetland surveying. This analysis is used to select and obtain the satellite remote sensing for wetland surveying.

3. The geographic information mapping method and system based on satellite remote sensing as described in claim 2, characterized in that, The evaluation process for assessing the mapping and sensing capabilities of satellite remote sensing for corresponding wetlands is as follows: Based on satellite remote sensing of wetlands, the measured data of various types of wetlands are obtained. These measured data are then compared with the data of the corresponding standard types of wetlands as defined by satellite remote sensing. If a certain measured data of a certain type of wetland differs from the corresponding standard type of wetland, the satellite remote sensing perception capability of the wetland is deemed insufficient, and ground-based auxiliary equipment is required to perform subsequent geographic surveying. If no difference exists between the measured data of a certain type of wetland and the corresponding standard type of wetland, the satellite remote sensing perception capability of the wetland is deemed satisfactory. This is used to evaluate the satellite remote sensing perception capability of the wetlands.

4. The geographic information mapping method and system based on satellite remote sensing as described in claim 3, characterized in that, The analysis yielded ground-based auxiliary equipment corresponding to the satellite remote sensing mapping of the wetland. The specific analysis process is as follows: When the satellite remote sensing capability for mapping wetlands is insufficient, the mapping bands corresponding to the insufficient satellite remote sensing capability are acquired, and the measured spectral data corresponding to the mapping bands are extracted. The measured spectral data of the satellite remote sensing mapping of wetlands are compared with the set of ground object spectral data corresponding to each ground auxiliary device. If the measured spectral data of the satellite remote sensing mapping of wetlands is within the set of spectral data corresponding to a certain ground auxiliary device, then the ground auxiliary device corresponding to the spectral data set is taken as the ground auxiliary device under the satellite remote sensing mapping of wetlands. In this way, the ground auxiliary devices under the satellite remote sensing mapping of wetlands are obtained.

5. The geographic information mapping method and system based on satellite remote sensing as described in claim 4, characterized in that, The specific process for obtaining the geographic image corresponding to the wetland is as follows: A1. Based on the spectral differences of wetland mapping corresponding to satellite remote sensing, the supplementary mapping area of ​​wetland corresponding to ground auxiliary equipment is obtained. According to the preset time period of the initial wetland mapping corresponding to satellite remote sensing, the wetland images mapped under each preset time period corresponding to the initial satellite remote sensing are obtained. The wetland images under each preset time period are arranged in the order of time period. The images of each wetland under the same mapping are obtained in advance. By retaining the image with the first time order under each identical wetland image, the retention time period after the wetland image is removed is obtained. The time period difference between each retention time period is used as the preset time period reference for the current wetland mapping corresponding to satellite remote sensing and ground auxiliary equipment. In this way, the supplementary mapping area and mapping time interval corresponding to satellite remote sensing and ground auxiliary equipment are obtained. A2. Based on the above analysis, conduct wetland mapping to obtain the corresponding geographic images of the wetlands, and extract the corresponding band data of the wetland mapping from them, including the visible light band, the visible infrared band, and the microwave band.

6. The geographic information mapping method and system based on satellite remote sensing as described in claim 5, characterized in that, The prediction yields the corresponding area change of the wetland, and the specific prediction process is as follows: Based on the mapping band data corresponding to wetlands, and by obtaining the standard state intervals corresponding to historical mapping band data of wetlands from the database, the comprehensive mapping state value of wetlands is obtained through analysis. If the comprehensive mapping state value of wetlands is 1, it is determined that the area change of wetlands shows an increasing trend. If the comprehensive mapping state value of wetlands is 0, it is determined that the area change of wetlands shows a decreasing trend. Further analysis of the current wetland reduction situation is needed to prevent the expansion of the wetland reduction trend, thereby predicting the area change of wetlands.

7. The geographic information mapping method and system based on satellite remote sensing as described in claim 6, characterized in that, The analysis yielded the comprehensive mapping status value of the wetland, and the specific analysis process is as follows: Calculation formula: ,in This represents the comprehensive survey and mapping status value corresponding to the wetland. This refers to the standard state interval corresponding to the historical wetland mapping band data. Band data for wetland mapping by satellite remote sensing and ground-based auxiliary equipment. The numbering of the band data, 1, 2, and 3 represent the visible light band, visible infrared band, and microwave band, respectively. The visible light band corresponds to the standard state range of the visible light band, the visible infrared band corresponds to the standard state range of the visible infrared band, and the microwave band corresponds to the standard state range of the microwave band.

8. The geographic information mapping method and system based on satellite remote sensing as described in claim 7, characterized in that, The analysis revealed the reasons for the wetland area reduction trend, and the specific analysis process is as follows: Obtain the bands corresponding to each historical wetland under a preset time limit, and arrange the bands from each historical wetland to the current wetland in order of time limit. This yields the wave reduction value of the corresponding bands from the historical wetland to the current wetland. Compare the wave reduction value corresponding to the wetland with the reduction values ​​of each reference band corresponding to the wetland stored in the database. If the wave reduction value corresponding to the wetland is the same as the reduction value of a certain reference band corresponding to the wetland stored in the database, then the reason for the reduction of the wetland corresponding to the reduction value of the reference band is taken as the reason for the current wetland area showing a decreasing trend. Then, a reference reduction feature data set corresponding to the reduction cause is extracted from the database. The reference reduction feature data set is compared with the reduction feature data obtained from the current wetland mapping by satellite remote sensing and ground auxiliary equipment. If the reference reduction feature data set contains the reduction feature data obtained from the current wetland mapping by satellite remote sensing and ground auxiliary equipment, then the reduction cause is determined to be the reason for the wetland area reduction trend.

9. The geographic information mapping method and system based on satellite remote sensing as described in claim 8, characterized in that, The analysis identified maintenance measures under the trend of wetland area reduction. The specific analysis process is as follows: Based on the analysis of the reasons for the decreasing trend of wetland area, the types of reasons for the decreasing trend of wetland area are compared with the historical types of reasons corresponding to wetland reduction maintenance measures stored in the database. If the type of reasons for the decreasing trend of wetland area is the same as a historical type of reason corresponding to wetland reduction maintenance measures stored in the database, then the reduction maintenance measures corresponding to that historical type of reason are taken as the maintenance measures under the current decreasing trend of wetland area. Real-time satellite remote sensing monitoring is continued on the treated wetlands to analyze the maintenance measures under the decreasing trend of wetland area.

10. A satellite remote sensing geographic information mapping system that implements the geographic information mapping method based on satellite remote sensing according to any one of claims 1-9, characterized in that, include: The satellite remote sensing screening and analysis module is used to acquire overall data for wetland scenes as the mapping target, and then screen out the corresponding satellite remote sensing data of the wetland. The satellite remote sensing perception and analysis module is used to evaluate the mapping perception capability of the wetland corresponding to the satellite remote sensing. When the mapping perception capability of the wetland corresponding to the satellite remote sensing is insufficient, the module further analyzes and obtains the ground auxiliary equipment corresponding to the wetland under the satellite remote sensing mapping. The geographic mapping status analysis module is used to acquire the geographic images corresponding to the wetlands, predict the changes in the area of ​​the wetlands, analyze the reasons for the trend of wetland area reduction, and analyze the maintenance measures under the trend of wetland area reduction. The early warning module is used to issue early warnings when the area of ​​the corresponding wetland shows a decreasing trend.

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