Land change investigation field check and daily change monitoring method and system

Abstract

The invention provides a land change investigation field check and daily change monitoring method and system, and relates to the technical field of land investigation monitoring. The land change investigation field check and daily change monitoring method comprises the following steps: dividing a to-be-monitored land into a plurality of areas, and constructing an unmanned aerial vehicle launching station near the to-be-monitored land; through an RS remote sensing image system and on the basis of the basic orthophoto map, county-divided orthophoto maps are processed and manufactured; comparing the images to find inconsistent change pattern spots; shooting corresponding positions of the changing color spots through the unmanned aerial vehicle; filling a land change survey record table according to the image; and encrypting and submitting the data. By combining unmanned aerial vehicle monitoring and an RS remote sensing system, the land change area can be rapidly monitored in real time, and the method not only improves the efficiency and accuracy of land change investigation, but also ensures the safety and integrity of data, and provides more reliable technical support for land management and planning.

Description

Technical Field

[0001] The present invention relates to the technical field of land survey and monitoring, and in particular to a method and system for field verification of land change survey and daily change monitoring. Background Art

[0002] With the continuous advancement of science and technology, the demand for land change investigation and monitoring is increasing. Traditional land change investigation methods mainly rely on manual field surveys and satellite remote sensing images, which have problems such as low efficiency, untimely data updates, and high costs.

[0003] In recent years, the rapid development of drone technology has provided new solutions for land change surveys. Drones have the advantages of high flexibility, low cost, and fast data acquisition, and can quickly obtain high-resolution image data. However, single drone monitoring or satellite remote sensing images have limitations in data coverage and accuracy, making the existing land change survey field verification difficult. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a method and system for field verification of land change surveys and daily change monitoring, which solves the problems of limitations in data coverage and accuracy of single drone monitoring or satellite remote sensing images.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method and system for field verification of land change investigation and daily change monitoring, comprising the following steps:

[0008] Step 1: Divide the land to be monitored into multiple areas and build drone launch stations near the land to be monitored;

[0009] Step 2: Generate satellite remote sensing image data through RS remote sensing images, GPS global positioning system and GIS geographic information system, and process and produce county-level orthophoto maps based on basic orthophoto maps;

[0010] Step 3: Use the orthophoto map to compare with the land survey database of the previous year, and find and classify the change spots where the remote sensing image features are inconsistent with the database land types;

[0011] Step 4: Launch a drone equipped with a camera component and a GPS component from a drone launch station near the location corresponding to the color change spot to take a picture of the location corresponding to the color change spot;

[0012] Step 5: Manually check the drone's photographic images, verify the actual land use, and truthfully fill in the land change investigation record form to record the location, scope, land type, ownership and other information of the land;

[0013] Step 6: Record the utilization data and save it to the database, then encrypt the utilization data to form an encrypted result file, and submit the encrypted result file.

[0014] Preferably, each of the land areas to be monitored is set to 10-50 square kilometers, and the common area of ​​adjacent land areas to be monitored is not higher than 2 square kilometers.

[0015] Preferably, the resolution of the orthophoto map should be no less than 0.5 meters to ensure that the details of land use changes can be accurately identified.

[0016] Preferably, the extraction of the change patches should include but not be limited to changes in land use type, changes in land ownership, and changes in land quality.

[0017] Preferably, the camera assembly carried by the drone should have a resolution of at least 12 million pixels to ensure that the acquired images can meet the needs of high-precision monitoring.

[0018] Preferably, the manual review of drone photographic images should be conducted in conjunction with geographic information system software to improve the efficiency and accuracy of the review.

[0019] A system for field verification of land change investigation and daily change monitoring, applied to the above-mentioned method for field verification of land change investigation and daily change monitoring, characterized in that it includes:

[0020] UAV launch station: used to launch and recover UAVs equipped with camera and GPS components. Each launch station covers 10-50 square kilometers of land area to be monitored. The coverage areas of adjacent launch stations have an overlap area of ​​no more than 2 square kilometers to ensure the continuity and integrity of monitoring;

[0021] Image processing unit: Receives image data taken by drones, and combines RS remote sensing images, GPS global positioning system and GIS geographic information system to produce high-resolution orthophotos with a resolution of no less than 0.5 meters;

[0022] Data comparison module: compare the generated orthophoto map with the land survey database of the previous year, automatically identify and classify the change spots where the remote sensing image features are inconsistent with the database land types, including changes in land use types, land ownership and land quality;

[0023] Image verification terminal: equipped with geographic information system (GIS) software, so that staff can manually view the photographic images taken by drones, verify the land use situation with GIS software, and truthfully fill in the land change investigation record form to record the location, scope, land type, ownership and other information of the land;

[0024] Data management and encryption module: records utilization data and saves it to the database, encrypts the data using an encryption algorithm of at least 128 bits to form an encrypted result file, and supports the submission of electronic and paper versions to ensure data security and confidentiality;

[0025] Automatic control system: controls the takeoff, flight path and mission execution of the drone, ensuring that the drone flies according to the preset path and mission, improving the efficiency and accuracy of monitoring;

[0026] Backup and recovery unit: provides data backup mechanism to prevent data loss or damage and ensure data integrity and traceability;

[0027] User interface: Provides an intuitive operation interface to facilitate users to perform tasks planning, data viewing, record filling and results submission, etc., improving the system's usability and user experience.

[0028] Preferably, the UAV launch station is equipped with a weather monitoring device to automatically adjust the flight plan of the UAV according to real-time weather conditions;

[0029] The image processing unit supports image data input in multiple formats, improving the compatibility and flexibility of the system;

[0030] The data comparison module supports user-defined classification of change spots to meet the monitoring needs of different regions;

[0031] The image verification terminal supports access by mobile devices, which is convenient for on-site staff to view and record in real time;

[0032] The data management and encryption module supports real-time updating and synchronization of data to ensure the timeliness and accuracy of data;

[0033] The automated control system supports remote control and monitoring, improving the operational convenience of the system;

[0034] The backup and recovery unit supports automatic backup and manual recovery, and provides a variety of backup strategy options.

[0035] (III) Beneficial effects

[0036] The present invention provides a method and system for field verification of land change survey and daily change monitoring. It has the following beneficial effects:

[0037] 1. This monitoring method divides the land to be monitored into multiple areas and builds drone launch stations near the land to be monitored. Each launch station covers an area of ​​10-50 square kilometers of land to be monitored. The coverage areas of adjacent launch stations have an overlapping area of ​​no more than 2 square kilometers to ensure the continuity and integrity of monitoring.

[0038] 2. This monitoring method combines UAV monitoring and RS remote sensing system to quickly monitor land change areas in real time. This method not only improves the efficiency and accuracy of land change surveys, but also ensures the security and integrity of the data, providing more reliable technical support for land management and planning. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example:

[0041] The embodiment of the present invention provides a method for field verification of land change investigation and daily change monitoring, comprising the following steps:

[0042] Step 1: Divide the land to be monitored into multiple areas and build drone launch stations near the land to be monitored. Each land area to be monitored is set to 10-50 square kilometers, and the common area of ​​adjacent land areas to be monitored is no more than 2 square kilometers;

[0043] Step 2: Generate satellite remote sensing image data through RS remote sensing images, GPS global positioning system and GIS geographic information system, and process and produce county orthophoto maps based on basic orthophoto maps. The resolution of orthophoto maps should not be less than 0.5 meters to ensure that the details of land use changes can be accurately identified.

[0044] Step 3: Use the orthophoto map to compare with the land survey database of the previous year to discover and classify the change spots where the remote sensing image features are inconsistent with the database land types. The extraction of change spots should include but are not limited to changes in land use types, changes in land ownership, and changes in land quality.

[0045] Step 4: Launch a drone equipped with a camera component and a GPS component from a drone launch station near the corresponding position of the color change spot to take pictures of the corresponding position of the color change spot. The camera component carried by the drone should have a resolution of at least 12 million pixels to ensure that the acquired image can meet the needs of high-precision monitoring.

[0046] Step 5. Manually check the drone's photographic images, verify the actual land use situation, truthfully fill out the land change investigation record form, and record the location, scope, land type, ownership and other information of the land. Manually check the drone's photographic images in conjunction with geographic information system software to improve the efficiency and accuracy of the verification.

[0047] Step 6: Record the utilization data and save it to the database, then encrypt the utilization data to form an encrypted result file, and submit the encrypted result file.

[0048] A system for field verification of land change investigation and daily change monitoring, applied to the above-mentioned method for field verification of land change investigation and daily change monitoring, comprises:

[0049] UAV launch station: used to launch and recover UAVs equipped with camera and GPS components. Each launch station covers 10-50 square kilometers of land area to be monitored. The coverage areas of adjacent launch stations have an overlap area of ​​no more than 2 square kilometers to ensure the continuity and integrity of monitoring;

[0050] Image processing unit: Receives image data taken by drones, and combines RS remote sensing images, GPS global positioning system and GIS geographic information system to produce high-resolution orthophotos with a resolution of no less than 0.5 meters;

[0051] Data comparison module: compare the generated orthophoto map with the land survey database of the previous year, automatically identify and classify the change spots where the remote sensing image features are inconsistent with the database land types, including changes in land use types, land ownership and land quality;

[0052] Image verification terminal: equipped with geographic information system (GIS) software, so that staff can manually view the photographic images taken by drones, verify the land use situation with GIS software, and truthfully fill in the land change investigation record form to record the location, scope, land type, ownership and other information of the land;

[0053] Data management and encryption module: records utilization data and saves it to the database, encrypts the data using an encryption algorithm of at least 128 bits to form an encrypted result file, and supports the submission of electronic and paper versions to ensure data security and confidentiality;

[0054] Automatic control system: controls the takeoff, flight path and mission execution of the drone, ensuring that the drone flies according to the preset path and mission, improving the efficiency and accuracy of monitoring;

[0055] Backup and recovery unit: provides data backup mechanism to prevent data loss or damage and ensure data integrity and traceability;

[0056] User interface: Provides an intuitive operation interface to facilitate users to perform tasks planning, data viewing, record filling and results submission, etc., improving the system's usability and user experience.

[0057] The drone launch station is equipped with weather monitoring equipment to automatically adjust the drone's flight plan based on real-time weather conditions;

[0058] The image processing unit supports image data input in multiple formats, improving the compatibility and flexibility of the system;

[0059] The data comparison module supports user-defined change pattern classification to meet the monitoring needs of different regions;

[0060] The image verification terminal supports access from mobile devices, making it convenient for on-site staff to view and record in real time;

[0061] The data management and encryption module supports real-time updating and synchronization of data to ensure the timeliness and accuracy of data;

[0062] The automated control system supports remote control and monitoring, improving the system's operational convenience;

[0063] The backup and recovery unit supports automatic backup and manual recovery, and provides a variety of backup strategy options.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for field verification of land change investigation and daily change monitoring, characterized in that: The following steps are involved: Step 1: Divide the land to be monitored into multiple areas and build drone launch stations near the land to be monitored; Step 2: Generate satellite remote sensing image data through RS remote sensing images, GPS global positioning system and GIS geographic information system, and process and produce county-level orthophoto maps based on basic orthophoto maps; Step 3: Use the orthophoto map to compare with the land survey database of the previous year, and find and classify the change spots where the remote sensing image features are inconsistent with the database land types; Step 4: Launch a drone equipped with a camera component and a GPS component from a drone launch station near the corresponding position of the color change spot to take a picture of the corresponding position of the color change spot; Step 5: Manually check the drone's photographic images, verify the actual land use, and truthfully fill in the land change investigation record form to record the location, scope, land type, ownership and other information of the land; Step 6: Record the utilization data and save it to the database, then encrypt the utilization data to form an encrypted result file, and submit the encrypted result file.

2. A method for field verification of land change investigation and daily change monitoring according to claim 1, characterized in that: Each of the land areas to be monitored is set to 10-50 square kilometers, and the common area of ​​adjacent land areas to be monitored is no more than 2 square kilometers.

3. The method for field verification and daily change monitoring of land change survey according to claim 1 is characterized by: The resolution of the orthophoto map should be no less than 0.5 meters to ensure that the details of land use changes can be accurately identified.

4. The method for field verification and daily change monitoring of land change survey according to claim 1 is characterized by: The extraction of the change map should include but not be limited to changes in land use types, changes in land ownership, and changes in land quality.

5. The method for field verification and daily change monitoring of land change survey according to claim 1 is characterized by: The camera component carried by the drone should have a resolution of at least 12 million pixels to ensure that the acquired images can meet the needs of high-precision monitoring.

6. The method for field verification and daily change monitoring of land change survey according to claim 1 is characterized by: The manual review of drone photographic images should be conducted in conjunction with geographic information system software to improve the efficiency and accuracy of verification.

7. A system for field verification of land change investigation and daily change monitoring, applied to a method for field verification of land change investigation and daily change monitoring as described in claims 1-6, characterized in that: include; UAV launch station: used to launch and recover UAVs equipped with camera and GPS components. Each launch station covers 10-50 square kilometers of land area to be monitored. The coverage areas of adjacent launch stations have an overlap area of ​​no more than 2 square kilometers to ensure the continuity and integrity of monitoring; Image processing unit: Receives image data taken by drones, and combines RS remote sensing images, GPS global positioning system and GIS geographic information system to produce high-resolution orthophotos with a resolution of no less than 0.5 meters; Data comparison module: compare the generated orthophoto map with the land survey database of the previous year, automatically identify and classify the change spots where the remote sensing image features are inconsistent with the database land types, including changes in land use types, land ownership and land quality; Image verification terminal: equipped with geographic information system (GIS) software, so that staff can manually view the photographic images taken by drones, verify the land use situation with GIS software, and truthfully fill in the land change investigation record form to record the location, scope, land type, ownership and other information of the land; Data management and encryption module: records utilization data and saves it to the database, encrypts the data using an encryption algorithm of at least 128 bits to form an encrypted result file, and supports the submission of electronic and paper versions to ensure data security and confidentiality; Automatic control system: controls the takeoff, flight path and mission execution of the drone, ensuring that the drone flies according to the preset path and mission, improving the efficiency and accuracy of monitoring; Backup and recovery unit: provides data backup mechanism to prevent data loss or damage and ensure data integrity and traceability; User interface: Provides an intuitive operation interface to facilitate users to perform tasks planning, data viewing, record filling and results submission, etc., improving the system's usability and user experience.

8. A system for field verification and daily change monitoring of land change survey according to claim 7, characterized in that: The UAV launch station is equipped with weather monitoring equipment to automatically adjust the flight plan of the UAV according to real-time weather conditions; The image processing unit supports image data input in multiple formats, improving the compatibility and flexibility of the system; The data comparison module supports user-defined change pattern classification to meet the monitoring needs of different regions; The image verification terminal supports access by mobile devices, which is convenient for on-site staff to view and record in real time; The data management and encryption module supports real-time updating and synchronization of data to ensure the timeliness and accuracy of data; The automated control system supports remote control and monitoring, improving the operational convenience of the system; The backup and recovery unit supports automatic backup and manual recovery, and provides a variety of backup strategy options.