A system and method for surveying ancient tree resources

Abstract

The application discloses a kind of ancient tree famous tree resource census system and method, including the mobile terminal of outside collection and the PC end of inside processing, and both realize data two-way transmission by the import, export of standardization data package.The application strictly adapts to the national unified census standard, can adapt to different terrain, different environment, different census scale work scene, and the universality and adaptability are extremely strong, can be widely applied to various work scenes such as daily inspection, annual update, special census, ancient tree group sampling survey and the like of ancient tree famous tree of each region in China, fully meet the working demand of ancient tree famous tree resource census standardization, high precision, intelligent, high efficiency.

Description

Technical Field

[0001] This invention belongs to the field of forestry resource information management technology, and relates to a system and method for surveying ancient and famous trees. Background Technology

[0002] Ancient and famous trees are important ecological and cultural resources. To implement the "Regulations on the Protection of Ancient and Famous Trees" and the deployment of the Third Plenary Session of the National Greening Committee, the Third National Survey of Ancient and Famous Tree Resources will be carried out scientifically, systematically, and orderly. Based on the results of the Second National Survey of Ancient and Famous Tree Resources, and using unified time points, standards, base maps, and platforms, the survey aims to further clarify the resource distribution, growth status, and protection and management of ancient and famous trees, forming a comprehensive and accurate database for the management of ancient and famous tree resources. This will lay a solid foundation for the scientific, precise, and legal protection and management of ancient and famous trees, and promote high-level protection and high-quality development of ancient and famous trees.

[0003] The existing technologies and systems for surveying ancient and famous trees have many shortcomings and are no longer suitable for the requirements of the Third National Survey of Ancient and Famous Trees. The specific deficiencies are as follows: (1) Insufficient adaptability of the scope and function of the census: The existing functions have not been developed for the newly added national parks, nature reserves and other areas in the third census. There is a lack of dedicated functional modules for ancient tree group sampling surveys and quadrat / transect layout, which cannot meet the needs of the new survey work.

[0004] (2) Poor coordination between field and office work: Under the traditional census model, field data collection and office processing are disconnected. The data connection between mobile data collection tools and PC office systems is not smooth, which can easily lead to data loss, format incompatibility and other problems, making it impossible to achieve integrated census.

[0005] (3) Low positioning and data collection accuracy: Existing tools mostly use conventional positioning methods, with positioning accuracy only reaching the meter level, which cannot meet the centimeter-level positioning requirements of the third census for quadrat, transect corner, and ancient tree location. Furthermore, the collection forms are not specifically designed for sampling surveys, making operation cumbersome and data entry prone to errors.

[0006] (4) Weak data management and processing capabilities: Existing tools have insufficient data integration capabilities, are compatible with only one data format, and cannot efficiently integrate multi-source basic data such as administrative boundaries, remote sensing images, and forest resource surveys; lack intelligent internal calculation and multi-dimensional quality inspection functions, have low levels of data standardization and centralized management, and the quality inspection only covers a small number of basic rules, making it difficult to guarantee the quality of census data.

[0007] (5) Low output efficiency: The existing tools do not have standardized census thematic map templates and one-click generation functions. After the internal processing is completed, the results report and thematic map need to be compiled manually, which is labor-intensive and inefficient. Moreover, the output format is not uniform and cannot meet the requirements for standardized output of census results.

[0008] (6) Lack of data security and offline operation capability: Some systems rely on network operation and cannot be used in forestry field environments without network access. Furthermore, they lack a sound data encryption and offline storage mechanism, posing a risk of data leakage and loss.

[0009] Forestry field surveys are generally characterized by complex environments and numerous areas without network coverage. Existing technologies and systems have significant shortcomings in adapting to the requirements of surveys across the country and in dealing with complex field environments. There is an urgent need for a universal and professional information system for surveys that is tailored to field work scenarios. Summary of the Invention

[0010] The problem solved by this invention is to provide a system and method for surveying ancient and famous trees, and to provide a closed-loop system and method that integrates offline data collection, intelligent sampling, automatic quality inspection, indoor mapping, and output of results, which is adapted to the newly added scope and survey specifications of the Third National Survey of Ancient and Famous Trees.

[0011] This invention is achieved through the following technical solution: A system for surveying ancient and famous trees includes a mobile terminal for field data collection and a PC terminal for data processing. The two terminals achieve bidirectional data transmission through the import and export of standardized data packets. The mobile terminal includes a layer management module, a navigation tool module, a track management module, an ancient and famous tree resource survey module, and a quadrat and transect survey module; it also integrates a positioning module. During field data collection, the mobile terminal encapsulates the ancient and famous tree resource survey results into structured data units in real time according to the data exchange format. In weak network or no network environment, the mobile terminal temporarily stores data packets in a local encrypted queue. When the network is restored, the mobile terminal sends a synchronization request to the PC. The PC returns a summary list of currently received data packets, and the mobile terminal only uploads missing or updated data packets. The PC client includes an engineering management module, a data management module, a data editing module, a results output module, and a map view tool module. The PC client can directly read the standardized offline data package exported from the mobile client in advance, and independently complete the internal processing operations based on the locally stored census standard rules, quality inspection models, and mapping templates. All data generated by dual-end offline operations will be automatically saved locally as complete logs and backup files with timestamps; once the network link is restored, bidirectional data synchronization and updates will be completed by comparing the differences between local data and cloud data.

[0012] This invention also provides a method for surveying ancient and famous tree resources, including the following operations: 1) Creation of internal engineering After starting the PC system, create an RPD format project file using the new project function, fill in basic information including project name, project path, creator, and project description, and the system will automatically load and display coordinate system information to complete spatial reference initialization; After the project is created, the project data can be persisted and managed through the functions of saving the project and saving the project as a different file, so as to realize the full life cycle management of the census project from creation and modification to archiving; 2) Data preparation and task distribution Based on the data management module, basic census source data is imported first. Among them, vector data of ancient tree groups supports shp and gdb formats, and attribute table data of ancient and famous trees supports xls and xlsx formats. During the data import process, the system completes intelligent matching of fields with the same name according to the national standard census field library. For fields with inconsistent names and non-standard custom fields, manual visualization and mapping configuration is supported to ensure that multi-source heterogeneous data is standardized and unified before standardized entry into the database. After the data is entered into the database, the census data of the target work area can be accurately filtered through the system data catalog module by combining attribute condition query and spatial range query. The administrative division boundary conditions can be superimposed for secondary accurate filtering to lock in the work dataset to be issued. The selected task data, corresponding base map resources, census reporting specifications, quality inspection rules and field templates are then uniformly packaged and packaged to generate a lightweight, offline-usable standardized field operation package. Task distribution supports two controllable flow methods: online synchronous distribution and offline data packet distribution. In areas with good network conditions, the PC can push field operation packages to the mobile operation APP with specified permissions in one click through an encrypted transmission channel, and complete the automatic reception and update of tasks. Operators can choose to "generate job package to local path". The system will package the same job package into a .gmst format file and save it to the folder specified by the user. Field personnel can then import the .gmst file into the "receive task" module of the mobile APP by manually copying or transmitting it over the network. The APP will automatically parse and load the task data and complete the distribution. In remote work areas with no or weak network coverage, the work package can be exported locally from the PC to a specified storage path and transferred to the mobile device via offline file copy. After importing the work package, the mobile device can automatically load the work tasks and base map data. Operators can directly select the corresponding mobile device drive letter in the configuration window, and the system will automatically package the selected ancient tree group vector data, ancient and famous tree table, associated photo index, and the configuration file for this survey task into a standardized field work package. The standardized field work can be directly written to the specified directory on the mobile device. After writing, the field personnel can unplug the equipment and go out to work. 3) Offline map and terminal parameter configuration On mobile devices, vector business data and raster image base maps are first loaded through the layer management module, and online map pre-caching and offline map download are completed in the network map management function to ensure normal browsing and use in scenarios without network access. The software settings module enables the switching of positioning modes, configuration of basic GPS parameters, Bluetooth pairing and communication debugging of RTK high-precision positioning equipment, and setting of operational parameters including track acquisition and point sampling. Standardized task data sent from the PC is loaded and parsed by reading the local task package through the task import module. 4) Navigation and Precise Positioning Operators select the navigation mode based on the site environment and equipment conditions, and start navigation after selecting the target ancient trees, ancient tree groups or sample plot number. The system provides real-time path and voice guidance; at the same time, in conjunction with the real-time positioning of the map operation module and the electronic compass, the target location can be quickly locked, achieving efficient and accurate arrival at the field survey points; 5) Fieldwork process control Configure time interval or distance interval sampling rules through the track settings function, and customize track display color, line width and transparency; During field operations, the system automatically records the trajectory starting from the current location point. Once the operation is completed, data collection stops and a standard track file is generated. The system supports multi-dimensional querying of historical tracks, map visualization, import and export, enabling the entire field survey process to be recorded, traceable, and verifiable. 6) Field survey of scattered ancient trees: information collection for each tree For the field survey of scattered ancient and famous trees, under the premise that the layers are loaded normally and the equipment positioning is stable, the ancient tree icon is clicked on the map interface or the target item is selected in the list interface to enter the survey details interface and complete the basic information verification, supplementation and modification; for objects with doubts about the age or species, doubts can be reported, relevant explanatory information can be entered, and photos of the current state of the ancient tree can be taken on site as evidence; all collected data are saved in real time. 7) Field survey of ancient tree groups: sampling survey and quadrat layout For the field sampling survey of ancient tree groups, the target ancient tree group was selected and the survey method was set to sampling survey. The quadrats and transects were accurately laid out by manual drawing or coordinate input. After the layout was completed, the quadrats were entered into the quadrats survey interface to carry out operations including adding, editing, deleting, reporting doubtful information and collecting photos of ancient trees within the quadrats. 8) Field data collection After the fieldwork is completed, the mobile device first encapsulates all the data collected on site, including the coordinates of the points, plant information, and image data, into a standardized data package. Data return can be implemented in two ways: when the network is normal, the mobile device establishes a connection with the PC through an encrypted transmission channel and uploads data packets online with one click; in the absence of network, the data packets can be exported to local storage media and then copied to the PC device. Then, the data recycling function is invoked on the PC to select the corresponding data file for reading, parsing and verification. The system displays the data recycling progress, error prompts and final data entry results in real time. After the data is entered into the database, the existing engineering data is automatically updated and merged, realizing the unified collection and centralized management of field-collected data and indoor engineering data, forming a complete data flow closed loop.

[0013] 9) Refined editing of internal data Initiate an editing session to perform topological operations on layers such as ancient and famous trees, ancient tree groups, quadrats, and transects, including drawing, moving, deleting, splitting, merging, trimming, and breaking down, while simultaneously adding, modifying, and deleting attribute information; collaborative editing can be achieved by switching between different layers to ensure accurate consistency between spatial data and attribute data, and topological compliance; 10) Standardized processing of internal data The calculation function is used to perform batch attribute calculations and geometric calculations, and to filter, summarize and statistically analyze the data. Then, through the numbering management function, the numbering rules for ancient and famous trees and ancient tree groups are configured according to administrative divisions, and a unified and standardized numbering is automatically generated to achieve standardized management of national census data.

[0014] 11) Visualization of internal data Through basic map operations, zoom in, zoom out, pan, and full map display are enabled. Coordinate positioning is used to quickly locate target elements and conduct length, area, and other quantitative analysis and multi-temporal data roll-out comparison. It also supports element selection, attribute query and spatial query, and intuitively displays spatial distribution characteristics, providing support for data verification, quality inspection and business analysis; 12) Output of census results Based on business needs, the range of data to be exported is determined by layer filtering, spatial query, or attribute query. The business data of ancient and famous trees and ancient tree groups are packaged according to the system's preset format, generating standardized output files and completing the export.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention provides an integrated information system for the survey of ancient and famous trees, combining field data collection and office processing. Through deep collaboration between the PC system and the mobile app, it fully adapts to the new requirements and standards of the Third National Survey of Ancient and Famous Trees, providing a universal and professional information solution for survey work in various regions. It realizes the informatization, standardization, and intelligentization of the entire national survey process.

[0016] (1) Universal integrated collaborative design: realizes seamless connection between PC-based internal processing system and mobile-based field data collection APP nationwide, adopts a unified standardized data packet transmission mechanism, supports secure import and export of data packets, realizes lossless transmission of field data collection data to internal processing system, creates a full-process integrated census system, solves the industry pain point of disconnect between internal and external work in the traditional model, and adapts to the collaborative needs of census work in various regions across the country.

[0017] (2) Development of exclusive functions for new census requirements: In response to the nationally unified requirements for the third census, such as the sampling survey of ancient tree groups, the layout of quadrats / transects, and the census of national parks and nature reserves, exclusive function modules were developed on the PC system and mobile terminal. These modules include the structure of the sampling survey form, the layout and location adjustment of quadrats / transects, and the exclusive sampling cards. This will enable full adaptation to the new census requirements and meet the new survey work needs of various regions across the country.

[0018] (3) Unified multi-dimensional full-process data quality inspection system: A multi-dimensional data quality inspection system covering the entire process of field collection and office processing has been constructed. The mobile terminal realizes real-time attribute quality inspection and error prompts during the filling process, while the PC terminal system realizes full-dimensional quality inspection rule verification such as number compliance, latitude and longitude consistency, and rationality of tree measurement factors. It supports one-click quality inspection and viewing of results, and comprehensively ensures the uniformity and accuracy of national census data from the source to the end.

[0019] (4) Intelligent internal processing and multi-source data integration: The PC system has the ability to calculate and integrate multi-source data, supports intelligent calculation of the average value of characteristic factors such as diameter at breast height and tree age, is compatible with multiple data formats such as vector, raster, and Excel, can efficiently integrate basic data such as administrative boundaries, remote sensing images, and forest resource surveys, and seamlessly connects with the database to improve the level of intelligence and centralization of census data management.

[0020] (5) Dual protection of offline operation and data security for adapting to field scenarios: Both the PC system and the mobile terminal support offline operation without network, adapting to the complex field operation environment of forestry in various regions of the country; at the same time, a sound data encryption and offline storage mechanism is set up to avoid data leakage and loss, solving the common problem of traditional systems relying on the network and lacking data security.

[0021] (6) One-click generation of standardized results: The PC system has a built-in set of unified census thematic map templates and professional mapping tools, which enables one-click generation and export of census results such as resource catalogs, statistical tables, thematic maps, and results reports, greatly improving the efficiency of results output, realizing the standardization and normalization of census results, and meeting the unified reporting requirements.

[0022] (7) High-precision multi-system positioning fusion: The mobile terminal integrates high-precision positioning equipment and integrates Beidou, GNSS and GLONASS multi-system positioning technologies to achieve centimeter-level high-precision positioning. This breaks through the original field data collection meter-level positioning accuracy limit and can accurately complete the coordinate collection of quadrat, transect corner point and ancient tree location, meeting the high-precision positioning unified requirements of the Third National Census. Attached Figure Description

[0023] Figure 1 This is a hierarchical relationship diagram of the various modules of this invention; Figure 2 This is a business process diagram of the present invention; Figure 3 This is a schematic diagram of the modules of the PC terminal and the mobile APP of this invention. Detailed Implementation

[0024] See Figures 1-3 A system for surveying ancient and famous trees includes a mobile terminal for field data collection and a PC terminal for data processing. The two terminals achieve bidirectional data transmission through the import and export of standardized data packets. The mobile terminal includes a layer management module, a navigation tool module, a track management module, an ancient and famous tree resource survey module, and a quadrat and transect survey module; it also integrates a positioning module. During field data collection, the mobile terminal encapsulates the ancient and famous tree resource survey results into structured data units in real time according to the data exchange format. In weak network or no network environment, the mobile terminal temporarily stores data packets in a local encrypted queue. When the network is restored, the mobile terminal sends a synchronization request to the PC. The PC returns a summary list of currently received data packets, and the mobile terminal only uploads missing or updated data packets. The PC client includes an engineering management module, a data management module, a data editing module, a results output module, and a map view tool module. The PC client can directly read the standardized offline data package exported from the mobile client in advance, and independently complete the internal processing operations based on the locally stored census standard rules, quality inspection models, and mapping templates. All data generated by dual-end offline operations will be automatically saved locally as complete logs and backup files with timestamps; once the network link is restored, bidirectional data synchronization and updates will be completed by comparing the differences between local data and cloud data.

[0025] Seamless integration between PC and mobile devices is achieved through standardized data packets, generated based on the national ancient and famous tree survey standards. The system pre-constructs a unified data dictionary, field formats, data encoding, and structural templates. During field data collection, the mobile device encapsulates the coordinates, attributes, photos, audio / video, and logs of each ancient tree into structured data units in real time, according to the GMS 2.0 data exchange format. The system automatically performs binary compression and SM3 hash digest calculation on multimedia files, generating standardized data packets containing the data body, hash checksum, timestamp, and device fingerprint, with the extension .gmsp. Each data packet uses SM4 symmetric encryption to ensure field-level security during storage and transmission. The data integration process uses a dedicated encrypted transmission protocol, and the mobile and PC devices use the HTTPS / 2 transmission protocol with differential synchronization and breakpoint resumption.

[0026] The mobile app automatically detects network status and temporarily stores data packets in a local encrypted queue in weak or no network environments. When the network is restored, the app sends a synchronization request to the PC. The PC returns a summary list of currently received data packets, and the app only uploads missing or updated data packets. Each data packet is transmitted using a binary framing protocol, with the frame header containing a data fingerprint and block checksum. After receiving the packet, the PC re-verifies and decrypts it using SM3. If the packet is complete, it is stored in the database and a confirmation command is returned. If a transmission error occurs, a retransmission is automatically triggered. This mechanism achieves seamless, lossless, resumable, and tamper-proof integration between the two ends, forming an integrated system for the survey of ancient and famous tree resources, encompassing both field data collection and data processing.

[0027] (1) Overall architecture design This invention adopts a distributed architecture of "mobile terminal field data acquisition + PC terminal office processing". Both support offline operation. Data can be transmitted bidirectionally through the import and export of standardized data packets. In the absence of network environment, offline data acquisition can be performed on the mobile terminal and offline processing can be performed on the PC terminal. The PC terminal system adopts a stand-alone desktop application architecture and has a built-in lightweight embedded database as an offline storage engine.

[0028] All census data is imported locally via USB drive or intranet upon first use, without the need for real-time connection to the central server. In network-free scenarios such as network outages, lack of dedicated network, or absence of signal in the field, the PC can directly read the standardized offline data packets exported from the mobile device. Relying on locally stored census standard rules, quality inspection models, and mapping templates, it can independently complete a full set of internal processing operations, including local parsing, batch correction, attribute editing, logical verification, data classification, ledger organization, and offline pre-mapping of census data, without relying on cloud servers and network links, completely eliminating the limitations of the network environment on internal work.

[0029] All data generated by dual-end offline operations will be automatically stored locally as complete logs and backup files with timestamps. Once the device detects that a valid network link has been restored, the system will automatically compare the differences between the local data and the cloud data, and complete the bidirectional data synchronization update through incremental synchronization, data verification, and deduplication and error correction mechanisms to ensure that the offline operation data is not lost, does not conflict, and is traceable.

[0030] This overall architecture fully covers the entire business process of ancient and famous tree survey, including engineering management, data preparation, field collection, office processing, data quality inspection, and output. It can be flexibly adapted to various complex field operation scenarios such as mountains, forest areas, and remote uninhabited areas, and is fully adapted to the needs of ancient and famous tree survey operations in all regions of the country.

[0031] After the network is restored, data synchronization is completed. The overall architecture covers the entire process of national census work, including project management, data preparation, field collection, office processing, data quality inspection, and output of results, and is adaptable to the operation scenarios in various regions of the country.

[0032] (2) PC terminal The PC-based system provided by this invention serves as the core of the data processing for the national survey of ancient and famous trees. It focuses on end-to-end data processing and aims for high-quality output. The system includes functional modules such as project management, data management, data editing, output, and map view tools. These modules work together to achieve end-to-end management of the survey data processing across all regions of the country. 1) The project management module is designed to meet the project-based and regional management needs of the census work. It supports creating new projects, opening projects, saving projects, and saving projects as different files, thus realizing the full lifecycle management of project files.

[0033] The newly created project is used to create a brand new RPD format project file and complete the basic project information configuration and spatial reference initialization. After triggering the creation operation, the following fields must be filled in: Project Name, Project Path; Optional fields: Creation Time, Creator, Project Description. The coordinate system information is automatically loaded and displayed. After confirming the information, the project creation is completed and the project file is generated.

[0034] The "Open Project" function loads an existing project file and restores the project context and configuration information. After selecting the target file, the system parses the file content, and once loaded, enters the project's business operation interface.

[0035] The saved project function writes all changes to the current project file. If there are unsaved changes, the original file is overwritten, thus completing data persistence; if there are no changes to save, no operation is performed.

[0036] The "Save As" option copies the current project state into a new project file without affecting the original project file. After triggering the save as operation, the system copies all configurations and data from the current project, generating a new file.

[0037] 2) The data management module is the core business support module of the system, realizing the full-process control of data import, distribution, retrieval, data cataloging, calculation, and numbering management of ancient and famous trees and ancient tree groups. It supports multi-source data format compatibility and spatial-attribute integrated operation. Among them, multi-source data format compatibility is achieved through a built-in multi-format parsing and adaptation engine and a unified data conversion and adaptation mechanism. The module pre-encapsulates parsing interfaces for commonly used data formats such as SHP, CAD, KML, Excel, CSV, and high-definition images in the ancient and famous tree survey, and can automatically identify the format type, field structure, and encoding method of imported data. At the same time, it is equipped with intelligent format adaptation, field mapping, and automatic error correction mechanisms, which can automatically parse, format normalize, match fields, and standardize heterogeneous data from different sources, different formats, and different old survey standards, unifying various heterogeneous data into the system's preset national standard structured data format without the need for manual secondary rectification, thus solving the problem of inconsistent multi-source data formats and inability to interoperate and integrate.

[0038] Meanwhile, this module supports the linkage, integrated editing, synchronous updates, and related queries of spatial graphic data and tree attribute data. For formats with built-in geometric information, such as Shapefile and GeoJSON, the parsing engine extracts attribute table fields while reading spatial features and automatically merges them into an integrated record of "coordinates + attributes" conforming to the GMS 2.0 standard. For example, for a single ancient tree, this integrated record is organized in GeoJSON format, containing geometric fields and attribute fields, thereby achieving unified storage, related queries, and synchronous updates of spatial and attribute data.

[0039] For purely attribute-based tables (CSV, Excel), the system supports spatial association or attribute linking with existing spatial layers through user-specified "XY fields" or "plot numbers" to generate complete census elements. This effectively ensures standardized, accurate, and controllable data flow throughout the census process, supporting the efficient implementation of various census operations.

[0040] The data import function supports importing vector and tabular data in multiple formats, automatically matching fields for rapid data entry. Select the target layer; vector data for ancient tree clusters supports (*.shp;*.gdb) format; data for ancient and famous trees supports Excel files (*.xls;*.xlsx) format. After selecting the data to be imported, the system automatically matches fields with the same name; unmatched fields can be manually associated. Set the area unit for the imported data; after successful import, the data is visualized on the map interface.

[0041] The specific data format adaptation specifications are as follows: Vector data of ancient tree clusters is compatible with mainstream surveying and mapping data formats, supporting import of shp and gdb formats; Attribute data of ancient and famous trees surveys supports common office spreadsheet formats, adapting to import of xls and xlsx format Excel files. After the operator selects the target layer and uploads the data source to be imported, the system activates the intelligent field matching mechanism. Based on the standard fields of the Third National Survey of Ancient and Famous Trees built into the system, it automatically compares the header fields of the imported file, prioritizing accurate matching of fields with the same name, and realizing automatic one-to-one data entry into the database. For example, the system's standard fields include "tree number, tree species name, diameter at breast height (DBH), tree height, growth vigor, protection level, longitude, latitude, and survey time." When the imported Excel spreadsheet or vector attribute table contains fields with completely identical names, the system will automatically complete the association mapping and directly read them into the database. For non-standard fields with inconsistent names but corresponding semantics, the system marks them as unmatched fields, supporting manual association and binding by operators. For example, the non-standard field "tree age" can be manually associated with the system's standard field "tree age," and the non-standard field "tree height" can be manually associated with the system's standard field "tree height," flexibly adapting to various historical non-standard survey data. After the data matching and association are completed, operators can uniformly set the area unit parameters for the imported data to complete the data import verification and database entry operations. After successful data import, all vector data such as the locations of ancient trees and the extent of ancient tree groups, along with their corresponding attribute data, will be rendered and visualized in real time on the system map interface, facilitating operators to quickly verify the import effect and conduct subsequent editing and quality inspection work.

[0042] The data distribution supports filtering data by administrative division and exporting it to a specified path, enabling hierarchical data distribution. After the distribution is completed, a prompt message will pop up.

[0043] The data recycling function can read external data files and re-enter the database, enabling data aggregation and updating. Select the data file to be recycled, begin recycling, and a notification will pop up upon completion.

[0044] The data catalog allows filtering of layer data in two ways: attribute query and spatial query. Attribute query filters by layer fields or allows for custom query conditions to retrieve target data. Spatial query allows you to select a target area on the map and automatically extract layer data within that area. After retrieving the results, you can center the graphic on the map to view detailed data information, perform field calculations and statistics, and export the selected data to gdb, shp, and Excel formats.

[0045] The calculation function performs batch attribute and geometric calculations based on attribute or spatial query results. Users can select either attribute or spatial query mode. If attribute calculation is selected, a calculation expression must be configured. After the calculation is completed, the results are automatically updated to the corresponding fields.

[0046] The numbering management system can configure numbering rules for ancient tree groups and famous ancient trees according to administrative divisions, thereby achieving standardized numbering generation.

[0047] 3) The data editing module is the core spatial data operation module of the system. It supports the full-process operation of graphic editing, attribute editing, sampling layout and editing rollback of multiple types of layers such as ancient tree groups, ancient and famous trees, quadrats and transects. It provides flexible tools for graphic drawing, modification, merging and segmentation to ensure accurate updates of spatial data and business survey needs.

[0048] The editing lifecycle management allows for operations such as starting editing, stopping editing, saving editing, and switching editing layers. Starting editing triggers the editing mode, locking the ancient tree group layer by default; stopping editing exits the current editing state, and unsaved editing operations will prompt whether to save; saving editing persists all graphic and attribute changes in the current session to the project file, overwriting the original data; switching editing layers allows switching editing targets between loaded layers, enabling collaborative editing of multiple layers.

[0049] The graphic drawing and creation functions offer multiple drawing modes to adapt to different scenario requirements. Continuous drawing allows you to drag and draw free curves using the left mouse button, suitable for irregular patches with large curvatures. Single-point drawing automatically closes the drawing by clicking on boundary nodes one by one, suitable for drawing regular polygons. Coordinate drawing is for ancient and famous tree point data, supporting precise point drawing by inputting latitude and longitude coordinates.

[0050] The graphic modification and topology operations include various operations such as deletion, movement, and splitting. Deleting a graphic involves selecting the target graphic using the selection tool and then deleting it. Moving ancient tree points involves selecting the ancient tree points and then dragging them with the mouse to update their positions. Splitting a graphic involves selecting the target surface feature and drawing intersecting dividing lines to divide a single graphic into two independent surface features. In-plane splitting involves selecting the target surface feature and drawing a closed shape within it to complete in-plane region segmentation. Graphic trimming involves selecting the target graphic and drawing a new boundary outline to replace the original boundary, thus correcting the graphic's shape. Merging graphics involves selecting multiple adjacent or non-adjacent polygons and performing a merge operation to generate a single composite graphic. Disassembling a graphic breaks down a multi-part composite graphic into independent individual graphics, restoring the spatial independence between features.

[0051] The edit rollback and restore functions allow for undo and redo operations. The undo operation reverts to the previous editing step, allowing for the cascading undo of unsaved changes. The restore operation, corresponding to the undo operation, restores undone editing steps and is only available after the original edit was undone.

[0052] The sampling survey layout function allows for the layout of transects and quadrats. Transect layout is only effective for ancient tree groves in sampling and remote sensing surveys, supporting both manual and coordinate drawing methods. Manual layout involves drawing a line segment intersecting the ancient tree grove on a map. Coordinate drawing involves inputting the latitude and longitude coordinates of the intersection with the ancient tree grove for precise transect layout. Quadrat layout is also only effective for ancient tree groves in sampling and remote sensing surveys, supporting both manual and coordinate drawing methods. Manual layout involves clicking within the ancient tree grove graphic, configuring corner points and quadrat widths in a pop-up window, and confirming to complete the layout. Coordinate drawing involves inputting the latitude and longitude coordinates within the ancient tree grove graphic, customizing corner points and quadrat widths, and confirming to complete precise layout. Quadrats and transects can be edited, supporting deletion and movement operations to adapt to position adjustment needs during the survey process.

[0053] The auxiliary editing function provides snapping settings and attribute editing functions. The snapping settings provide node and boundary snapping capabilities in operations such as drawing, segmentation, edge trimming, and edge sharing, enabling precise snapping of existing graphic nodes and boundaries to ensure topological consistency; the attribute editing function can add, modify, and delete attribute information of elements such as ancient tree groups, ancient and famous trees, quadrats, and transects, and synchronously update the graphic and attribute data association.

[0054] 4) The output module is the core module for system data delivery. It supports the selective export of business data on ancient and famous trees and ancient tree groups, realizes the standardized output and sharing of survey results, and ensures the reusability of data results and business closure.

[0055] Users can filter and select the range of ancient and famous trees and ancient tree groups to be exported according to their business needs. The selected ancient and famous trees and ancient tree groups can be packaged into a system preset format and the result file can be generated through layer filtering, spatial query, or attribute query.

[0056] For example, a user can use a spatial query tool to select all ancient trees within a nature reserve on a map interface and add the attribute filter condition "tree age ≥ 300 years". The system will automatically lock the data range that meets the condition. The user can then choose the packaging format according to different uses. Export as GMS 2.0 standard data package (.gmsp): The system encapsulates the selected ancient tree data in the GMS 2.0 format designed in this invention. Each record contains coordinates (WGS84, millimeter-level precision), all attribute fields, an SM3 hash index of the photo file, and a device fingerprint. The entire data package is encrypted and compressed using SM4. This data package can be directly used for seamless integration with PC systems or other census platforms.

[0057] Export as a Shapefile (.shp) with attribute tables: The system automatically generates a point vector layer from the ancient tree locations. The attribute table contains key fields such as tree species, tree age, and growth vigor. The coordinate fields are converted to the projected coordinate system supported by Shapefile (such as CGCS2000), which is convenient for spatial analysis or mapping in professional software such as ArcGIS and QGIS.

[0058] Export as a national census reporting Excel template (.xlsx): The system automatically fills in the selected data according to the sample table format in the "Technical Specifications for the Third National Census of Ancient and Famous Trees Resources", generating standardized worksheets including a list of ancient and famous trees, a statistical table of ancient tree groups, and a photo index table, which users can directly submit to the superior competent authority.

[0059] Export as a geotagged PDF report: The system automatically arranges the selected ancient tree distribution map (overlaid with remote sensing imagery), key attribute statistical charts, and thumbnails of each ancient tree photo to generate a PDF output file that can be printed or archived.

[0060] After the user selects the packaging format, the system prompts them to enter the file name and storage path, and the resulting file is generated with one click. Batch export and split export are supported.

[0061] 5) The map view tool is the core visualization and interaction module of the system, providing basic map operations, spatial query, measurement and analysis, layer management and other capabilities. It supports users to efficiently browse, query, analyze and display spatial data of ancient and famous trees and ancient tree groups, and ensures the intuitive presentation and interactive operation of business data.

[0062] The basic map operation tools described herein enable various basic map operations. They support standard zoom in and out buttons; allow for precise viewpoint adjustment by selecting areas for zooming; support full-map display with a single click to restore the map to its full extent for a quick overview of all data; support map roaming for easy browsing of data from different regions; support feature selection and deselection; support attribute querying (clicking on a small area in the attribute query tool allows direct querying and display of complete attribute information); support coordinate positioning (entering the target's latitude and longitude coordinates and clicking the positioning icon enables precise point location); support length and area calculations for map features with real-time results display; and support both manual and automatic roll-out, suitable for multi-temporal data comparison and analysis.

[0063] (3) Mobile terminal The mobile app is the core of the field data collection for the survey of ancient and famous trees. It is designed for field surveyors across the country and supports mobile terminals such as mobile phones and tablets. It integrates high-precision positioning equipment through Bluetooth wireless communication protocol and is also compatible with the GNSS chip built into the device to achieve real-time acquisition of centimeter-level positioning data. The main feature is that it receives positioning data provided by external GNSS receivers in real time through Bluetooth wireless communication protocol, thereby obtaining more accurate location information than the built-in GPS of the mobile phone.

[0064] In terms of technical implementation, there are two main paths: one is system-level takeover, which means that after the device is paired, it automatically replaces the phone's built-in GPS as the source of system positioning services. The APP can obtain high-precision coordinates through the standard system positioning API. The operation is simple, but the types of data that can be obtained are limited. Secondly, it features application-level direct connection. The APP communicates directly with the device via Bluetooth API, reads raw messages conforming to the NMEA 0183 standard, thereby obtaining richer information such as the number of satellites and signal-to-noise ratio. It can also configure device parameters and perform centimeter-level RTK differential positioning, enabling efficient and accurate field data collection.

[0065] Based on standardized data collection, it comprehensively covers the field work needs of surveying each scattered ancient and famous tree, the whole forest survey of ancient tree groups, and sampling surveys in all regions of the country. It mainly includes functional modules such as layer management, navigation tools, track management, general survey of ancient and famous tree resources, quadrat and transect survey, map operation, and software settings. 1) The layer management function is the core module of spatial data visualization and control. It mainly realizes the full-process management of layers, covering core operations such as layer loading, control, style rendering, and offline download. It provides basic support for the intuitive display and accurate operation of business data such as ancient trees and ancient tree groups, and ensures the orderly management and efficient application of spatial data.

[0066] The layer management window interface is divided into three main functional areas, corresponding to vector layer management, raster layer management, and network map management, respectively. Each area can be operated independently without interfering with each other, and different types of layers can be managed by switching between the interfaces.

[0067] The vector layer management system primarily handles operations such as loading, status control, order adjustment, rendering configuration, and positioning of vector data, supporting full lifecycle management of core business vector data. Selecting the target vector data completes the loading of the vector layer, which is then automatically displayed in the layer list, defaulting to a visible / selectable state. It supports visibility control, selectability control, editability control, and scaling control; it supports layer order adjustment to adapt to different data display priority requirements; it supports layer rendering functions for configuring the display style, annotation information, and display range of vector layers; and it supports display control, allowing users to set the layer's display scale range to avoid display confusion caused by scale incompatibility.

[0068] The raster base map management function mainly realizes operations such as loading, status control, skew correction, rendering, filtering, and removal of raster image data. It supports accurate matching and optimized display of image base maps, adapts to spatial positioning and comparative analysis needs, and loads the raster base map by selecting the target raster data (such as tif, img, etc.). Long-pressing any loaded raster data can switch to multi-select mode, supporting batch operations. It supports visibility control, layer order adjustment, and zooming to layers; automatically filters black parts in the raster image; supports map skew correction, and performs band recombination and transparency adjustment for raster image (tif, img, etc.) formats; and supports removing loaded raster layers to quickly clean up base map data.

[0069] The network map management function supports online browsing and offline downloading of network maps (including image maps and administrative division maps). Online operations require a network connection. In field scenarios, offline maps can be downloaded in advance for offline browsing, ensuring business continuity. Commonly used network map types are loaded by default. Once the device is connected to the network, it can browse the network map online. During browsing, the system automatically caches the network map of the currently viewed area locally, adapting to offline field scenarios. Online downloading of network maps is supported, with precise definition of the download range. Display levels can be set; higher levels result in higher resolution. An appropriate display level should be selected based on business needs. Downloaded offline maps can be made visible; switching to the main map interface allows browsing of the offline map without a network connection.

[0070] 2) The navigation tool is the core auxiliary module for the system's field operations. It mainly provides three navigation modes: Baidu Navigation, Gaode Navigation, and sample plot Navigation, which support field personnel to quickly and accurately reach the target location and ensure the efficient progress of field survey work.

[0071] The Baidu navigation function requires that the device has successfully installed the Baidu Maps software and is connected to the internet. Select the target location on the Baidu Maps interface and start the navigation function. The software will provide real-time voice and route guidance to help the user reach the destination.

[0072] The Gaode navigation function requires that the device has successfully installed the Gaode Map software and is connected to the network. After selecting the target location in the Gaode Map interface and confirming, navigation will start. The software will guide the user to the target point efficiently through voice prompts and real-time route updates.

[0073] The sample plot navigation function is designed for field sample plot survey scenarios, enabling precise navigation from the current location to the target sample plot. After selecting the sample plot number of the target sample plot in the interface and confirming, the sample plot navigation interface is entered. The system uses a triangular flag icon as the exclusive identifier of the target sample plot and guides the user to the target sample plot, thus meeting the needs for precise location of the sample plot.

[0074] 3) The track management module is the core function of the system for monitoring and tracing data during field operations. It mainly realizes the full lifecycle management of track acquisition parameters, real-time track recording, query display, import and export. By accurately recording the field travel route, it provides the operators with the basis for process backtracking, ensuring the traceability and data standardization of the field survey process.

[0075] The track setting module defines track acquisition rules and visualization styles, ensuring that track data acquisition accuracy and map display effects meet business requirements. It provides time interval sampling and distance interval sampling, allowing users to flexibly choose the sampling trigger mechanism based on their operational scenarios. Based on the selected sampling method, specific sampling parameters are configured. Track line display colors can be precisely configured by selecting the color picker or manually inputting RGB values, and the track line display width can be adjusted to enhance visibility. Transparency settings are supported, allowing adjustment of track line transparency from 0% to 100%, and supporting optimized overlay display with base maps or other layers.

[0076] The track recording module enables real-time acquisition and file generation of field movement trajectories, serving as the core execution component of track management. The system automatically initiates the track acquisition process from the user's current GPS location, recording location information in real-time according to preset sampling rules. Upon reaching the target area or at the end of the operation, the system stops track acquisition, encapsulates the collected track point data into a standard track file, and completes the generation of a single track record.

[0077] The track management module provides efficient querying, visualization, format conversion, and data import / export capabilities for historical tracks, supporting the full-process application of track data. It supports multi-dimensional and precise filtering of historical track records for quick target trajectory location. It offers two query methods: time range query and sample plot number association query, providing quick access to tracks for the current day, week, and month, allowing one-click filtering of track data within the corresponding time period to improve query efficiency. Track display and disabling are supported; selecting target track records in the query results list will visualize the selected track lines on the map interface, clearly showing the field travel route. Clearing the track layer on the map interface restores the initial map display. Historical track data can be exported to various common formats, enabling cross-platform data sharing and deliverables. It also supports importing track data exported from the system or generated by third-party software, enabling track data reuse and integration. The import operation can load external track data into the system map, achieving unified management of multi-source tracks.

[0078] 4) The ancient and famous tree resource survey function is one of the core business functions of the system. It mainly realizes the accurate retrieval, verification, supplementation and storage of ancient and famous tree and ancient tree group resource information. It supports surveys through map interface and list interface. It provides auxiliary functions such as reporting doubts about tree age and tree species, photo collection, data filtering, sorting, navigation and trajectory viewing, providing standardized and efficient operation support for the survey work and ensuring the authenticity, integrity and standardization of the survey data.

[0079] Accessing the map interface requires that the ancient and famous tree layer is loaded on the map interface and that the layer is visible and selectable; the device's GPS positioning function must be normal. Clicking the icon corresponding to the target ancient and famous tree on the map interface will redirect to the details interface of the ancient and famous tree resource survey, displaying the basic information and survey items of the ancient and famous tree. It supports reporting doubts about tree age or species, allowing users to enter the reasons for doubt and preliminary judgments when questions about the age or species of ancient trees are discovered during the survey. It supports photo capture, allowing real-time photos of the current state of ancient trees for survey evidence, and users can view photos of ancient trees that have been captured or imported. It also supports persistent storage of survey data to prevent data loss.

[0080] Accessing the list interface requires the system to have already loaded the list of ancient and famous trees data, and the list data must be synchronized with the map layer data. Selecting a target ancient or famous tree in the list will automatically redirect the system to the resource survey details interface for that tree, allowing users to conduct the survey. The system supports sorting; clicking the corresponding filter icon in the list allows for quick location of the target survey object. It also supports navigation, guiding users to the site of the target ancient or famous tree; and it supports trajectory viewing, allowing users to view the flight track records related to the survey and enabling retrospective analysis of the survey process.

[0081] 5) The core of the quadrat / subplot survey function revolves around the ancient tree group sampling survey scenario, and is divided into two core links: quadrat layout and ancient tree survey within the quadrat. It is equipped with auxiliary functions such as ancient tree information editing, reporting of doubts, photo collection, and positioning. The operation process is coherent and adaptable to the actual needs of field sampling surveys.

[0082] The quadrat layout function needs to be completed in sampling survey mode based on the ancient tree group resource survey interface, and the basic survey configuration of the ancient tree group must be completed beforehand. Select the target ancient tree group on the map interface, and the system will automatically jump to the ancient tree group resource survey interface. In the ancient tree group resource survey interface, select sampling survey as the survey method, complete the quadrat layout, and the quadrat will be generated and displayed on the map interface.

[0083] The ancient tree survey operation within the sample plots supports the collection, editing, and saving of ancient tree information within the sample plots after the sample plots are set up. This is a core execution step in the sampling survey. Operations include adding new ancient trees and filling in information, managing and viewing the ancient tree list, collecting photos, saving and deleting data, and reporting any suspicious information.

[0084] 6) The map operation function is the core module of the system's basic interaction and spatial editing, including information display, electronic compass, positioning, scale control, full map, zoom, layer editing, range search, general tools and system settings, covering all scenarios such as map browsing, graphic editing, node operation, quadrat / strip layout, and data management.

[0085] The information display function supports coordinate display in the map interface. According to the actual work needs, check the information fields to be displayed in the pop-up options to complete the custom settings of map information display, ensuring that the required information is accurately presented and meeting the needs of viewing work data.

[0086] The electronic compass function is used to indicate map orientation in real time, ensuring that operators can accurately grasp spatial directions. If the orientation display is found to be inaccurate, strictly follow the calibration instructions displayed by the system to complete the orientation calibration operation to ensure that the compass orientation is accurate and reliable; clicking the corresponding icon of the electronic compass will bring up the independent display interface of the electronic compass for easy and intuitive viewing of the orientation.

[0087] The current location positioning function supports the system to capture and display the operator's current geographical coordinates in real time, provided that the GPS positioning signal is good and the positioning status is stable. The positioning results are synchronously fed back to the map interface to provide location reference for on-site operations.

[0088] The scale setting function allows users to set the scale in three ways: scale style selection, quick scale zoom, and custom scale settings, meeting the view requirements of different work scenarios. The full-map display function will automatically adjust the map view and center all currently loaded data (including vector layers, graphics, etc.) in the middle of the screen, ensuring that operators can view the distribution of all loaded data as a whole and improve work efficiency.

[0089] The map zoom-in and zoom-out functions are used for view scaling operations on the map interface. Operators can click the corresponding zoom-in and zoom-out buttons to zoom in or out of the map step by step according to a fixed scale, so as to achieve precise control of view details and facilitate viewing local details or overall distribution.

[0090] The editing function allows users to select the target layer to be edited according to job requirements. Once selected, the user can enter the editing mode of that layer to perform operations such as drawing, trimming, splitting, merging, node editing, moving, adding, deleting, undoing, redoing, and deleting, laying the foundation for subsequent graphic editing and attribute modification operations.

[0091] The range search function is used to quickly locate and find target objects near the current location. Operators can use this function to filter targets that meet the conditions according to preset ranges or custom ranges, thereby improving the efficiency of target search and meeting the query needs of on-site operations.

[0092] 7) The software settings module is designed around user operation convenience, functional adaptability and data management needs. It covers four core capabilities: GPS core settings, device connection configuration, data interaction management and system parameter configuration. It supports users to customize various parameters according to actual business scenarios, ensuring the stability of software operation, the accuracy of data and the flexibility of operation, and providing full-dimensional parameter configuration support for field operation scenarios.

[0093] The GPS settings module, as a core functional module, includes three main sub-functions: positioning, navigation, and track tracking. It supports multi-dimensional parameter customization to adapt to different positioning scenarios. It supports accessing the tablet system's native positioning service settings interface, allowing direct control of the software's overall positioning function; it allows configuration of background positioning permissions for continuous positioning in standby mode; it supports network positioning function on / off control to ensure positioning availability under different network environments; it supports setting target proximity trigger thresholds, allowing users to customize the distance to a target point before triggering a notification; it provides full parameter configuration for navigation lines; and it supports custom track sampling methods, offering two sampling modes: by time interval and by distance, allowing users to select the corresponding sampling rate based on the sampling method.

[0094] The GPS device source setting function is designed specifically for high-precision positioning needs, supports Bluetooth connection configuration for RTK devices, and enables access to high-precision positioning data.

[0095] The data management function supports two-way data interaction between mobile and desktop terminals, ensuring efficient flow and secure storage of survey data. It supports selecting survey data already collected on the mobile terminal as needed, and completing data export after confirmation, supporting multiple data output formats. It also supports importing configuration data and basic information distributed from the desktop terminal. The operation process is as follows: after clicking the import function, select the target import file, select the specific data items to be imported, confirm and execute the import, and receive real-time feedback on the import results, with a clear prompt upon successful import.

[0096] The system parameter configuration function includes multiple auxiliary function parameters to optimize the software's user experience and operational efficiency. It supports master on / off control of the voice broadcast function, allowing customization of speech speed and pitch to suit different users' auditory habits and work scenarios; it supports customizing the start and end numbers of ancient and famous trees and ancient tree groups by administrative region, with the settings taking effect upon clicking save, adapting to the standardization requirements of business data numbering; the default automatic save interval is 3 minutes, which can be customized by the user to balance data real-time performance and device resource consumption; the background has an automatic update mechanism enabled by default, and the system automatically pushes update notifications after function optimization and iteration, supporting one-click updates to ensure continuous function improvement; it provides software version information, development team, copyright statement, and other content displays to meet users' needs for querying basic software information.

[0097] The following will describe the PC-based system and mobile app of this invention in detail, using the practical application scenarios of the ancient and famous tree resource survey. The technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0098] Example 1 A certain region is conducting its third national survey of ancient and famous trees. The survey covers townships, national forest parks, and nature reserves within the region. The survey includes individual surveys of scattered ancient trees and sampling surveys of three ancient tree groups. The entire process, including quadrat / transect layout, centimeter-level positioning, data collection, data processing, and output of results, needs to be completed. Due to the large number of areas in the region without network access, traditional survey tools cannot meet the requirements. Therefore, the ancient and famous trees resource survey system (including a mobile APP) of this invention is used to conduct the survey, fully complying with the unified standards of the third national survey.

[0099] The methods for surveying ancient and famous trees include the following operations: Step 1: Creating Internal Work - Initializing the Census Project This step is a fundamental step in launching the census project and is implemented using the PC-based project management module. After starting the PC system, operators create an RPD format project file using the "Create Project" function, filling in basic information such as project name, project path, creator, and project description. The system automatically loads and displays coordinate system information, completing spatial reference initialization. After the project is created, the "Save Project" and "Save Project As" functions enable persistent data storage and copy management, achieving full lifecycle management of the census project from creation and modification to archiving, providing a unified and stable working environment for subsequent data processing.

[0100] Step 2: Data Preparation – Importing Multi-Source Data and Assigning Tasks This step involves internal data configuration and task distribution, relying on the PC-based data management module to achieve standardized control of the entire process. Operators prioritize importing basic census source data, with vector data for ancient tree clusters supporting .shp and .gdb formats, and attribute table data for ancient and famous trees supporting .xls and .xlsx formats. During data import, the system automatically performs intelligent matching of fields with the same name based on the national standard census field library. For fields with inconsistent names or non-standard custom fields, manual visual mapping configuration is supported to ensure that multi-source heterogeneous data is standardized and unified before standardized data entry. After data entry, operators can use the system's data directory module to accurately filter census data for the target work area using attribute condition queries and spatial range queries, and then overlay administrative boundary conditions for secondary precise filtering to identify the task dataset to be distributed. Subsequently, the system uniformly packages the filtered task data, corresponding base map resources, census reporting specifications, quality inspection rules, and field templates into a lightweight, offline-usable standardized fieldwork package.

[0101] Task distribution supports two controllable workflow methods: online synchronous distribution and offline data packet distribution. In areas with good network connectivity, the PC can push fieldwork packages in batches to the designated mobile app via an encrypted transmission channel, automatically receiving and updating tasks. Alternatively, operators can choose to "generate work packages to local path," where the system will package identical work packages into .gmst format files and save them to a user-specified folder. Field personnel can then import the .gmst files into the "Receive Task" module of the mobile app via manual copying or network transmission. The app automatically parses and loads the task data, completing the distribution.

[0102] In remote work areas with no or weak network coverage, the work package can be exported locally from the PC to a designated storage path and transferred to the mobile device via offline file copying. Once the mobile device imports the work package, it will automatically load the work tasks and base map data. Operators can directly select the corresponding mobile device drive letter in the configuration window. The system automatically packages the selected ancient tree group vector data, the ancient and famous tree table, the associated photo index, and the configuration file for this survey task into a standardized field work package. The work package uses the GMS 2.0 extended specification, and all data is encrypted with SM4 and hashed using SM3 before being directly written to the designated directory on the mobile device. After writing is complete, the system will display "Successfully delivered," and field personnel can then disconnect their devices and begin work.

[0103] This step enables the standardized, lossless, and traceable transfer of data from the office to the field operation terminal, providing accurate data support for standardized field data collection operations.

[0104] Step 3: Fieldwork Preparation—Offline Map and Terminal Parameter Configuration This step involves equipment and data preparation for field operations, achieved collaboratively through the mobile terminal's layer management module, software settings module, and task data import module. Operators first load vector business data and raster image base maps using the layer management module, and then pre-cache online maps and download offline maps completely using the network map management function to ensure normal browsing and use in offline scenarios. Simultaneously, they access the software settings module to switch positioning modes, configure basic GPS parameters, pair and debug Bluetooth with the RTK high-precision positioning device, and set operational parameters such as track acquisition and point sampling. Standardized task data sent from the PC is loaded and parsed using the mobile terminal's dedicated task import module. Once all configurations are complete, the field operation terminal is fully functional and meets the requirements of field survey operations.

[0105] Step 4: Arrival at the Field Site—Navigation and Precise Positioning This step guides field personnel to their assigned survey sites, utilizing the mobile navigation and map operation modules. Based on the site environment and equipment conditions, operators select Baidu Navigation, Gaode Navigation, or a dedicated sample plot navigation mode. After selecting the target ancient trees, ancient tree clusters, or sample plot number, navigation is initiated. The system provides real-time route and voice guidance. Simultaneously, the map operation module's real-time positioning, electronic compass, and coordinate positioning functions quickly pinpoint the target location, enabling efficient and accurate arrival at survey sites.

[0106] Step 5: Field Process Control—Flight Track Recording and Full Traceability This step involves monitoring and managing the field survey process, implemented using the mobile track management module. Operators first configure sampling rules for time intervals or distance intervals using the track settings function, and customize track display colors, line widths, and transparency. During field operations, the system automatically records the trajectory starting from the current GPS location. Upon completion of the task, data collection stops and a standard track file is generated. The system supports multi-dimensional querying of historical tracks, map visualization, import, and export, ensuring that the entire field survey process is recordable, traceable, and verifiable.

[0107] Step 6: Field Survey of Scattered Ancient Trees—Collection of Information for Each Tree This step involves the field survey of scattered ancient and famous trees, implemented using the mobile app's ancient and famous tree resource survey function. Assuming the layers are loaded correctly and the device's positioning is stable, operators can access the survey details interface by clicking the ancient tree icon on the map or selecting the target item from the list interface. This allows them to verify, supplement, and modify basic information. For trees with questionable ages or species, a "questionable report" can be submitted, along with relevant explanatory information, and photos of the tree's current condition taken on-site as supporting evidence. All collected data is saved in real-time to ensure the accuracy, completeness, and standardization of the field data.

[0108] Step 7: Field Survey of Ancient Tree Clusters—Sampling Survey and Quadrat / Transect Layout This step involves the field sampling survey of the ancient tree grove, implemented using the mobile terminal's quadrat / transect survey function. Operators select the target ancient tree grove and set the survey method to sampling. They then accurately lay out quadrats and transects using either manual drawing or coordinate input. After layout, they enter the quadrat survey interface to add, edit, delete, report questionable information, and collect photos of ancient trees within the quadrat, fully meeting the business needs of both whole-forest and sampling surveys of the ancient tree grove.

[0109] Step 8: Field Data Collection—Collection and Storage of Field Results This step involves transmitting field-collected data back to the office, implemented using the PC-based data management module. After fieldwork is completed, the mobile device first encapsulates all collected data, including location coordinates, plant information, and image data, into a standardized data package. Data transmission is implemented in two ways: when the network is normal, the mobile device establishes a connection with the PC through an encrypted transmission channel and uploads the data package online with one click; in the absence of a network, the data package can be exported to local storage and then copied to the PC. Subsequently, the operator uses the data retrieval function on the PC to select the corresponding data file for reading, parsing, and verification. The system displays the data retrieval progress, error messages, and final data entry results in real time. After the data is entered into the database, the system automatically updates and merges existing engineering data, achieving unified collection and centralized management of field-collected data and office engineering data, forming a complete data flow loop.

[0110] Step 9: Refined Editing of Internal Data—Correction of Graphics and Attributes This step involves improving the quality and precision of internal data processing, and is implemented using the PC-based data editing module. Operators initiate an editing session and perform topological operations such as drawing, moving, deleting, splitting, merging, trimming, and breaking down layers related to ancient and famous trees, ancient tree groups, quadrats, and transects. Simultaneously, they add, modify, and delete attribute information. The system supports edit rollback and restore functions, allowing for collaborative editing by switching between different layers, ensuring accurate consistency between spatial and attribute data and topological compliance.

[0111] Step 10: Standardization of Internal Data Processing—Standardization of Calculation, Statistics, and Numbering This step involves the standardization of census data, implemented using the PC-based data management module. Based on attribute or spatial query results, the calculation function performs batch attribute and geometric calculations, filtering, summarizing, and statistically analyzing the data. Then, through the numbering management function, numbering rules for ancient and famous trees and ancient tree groups are configured according to administrative divisions, automatically generating unified and standardized numbers to achieve standardized management of national census data.

[0112] Step 11: Visualizing In-house Data—Map Browsing and Measurement Analysis This step involves data browsing, verification, and auxiliary analysis, implemented using a PC-based map view tool. Operators can use basic map operations to zoom in, zoom out, pan, and view the entire map. They can quickly locate target elements using coordinate positioning, conduct length and area calculations, and perform multi-temporal data rollout comparisons. Simultaneously, it supports element selection, attribute queries, and spatial queries, intuitively displaying spatial distribution characteristics and providing support for data verification, quality checks, and business analysis.

[0113] Step 12: Output of Census Results—Standardized Deliverables This step marks the completion and delivery of the survey results, and is implemented using the PC-based results output module. Operators, based on business needs, use layer filtering, spatial queries, or attribute queries to define the range of data to be exported. They then encapsulate the data on ancient and famous trees and ancient tree clusters according to the system's preset format, generating standardized result files and completing the export. This achieves a closed-loop process for the entire ancient and famous tree resource survey, ensuring standardized delivery, sharing, and reuse of the results.

[0114] Example 2 To address the challenges of closed-loop data management throughout the entire process, high-precision field data acquisition, multi-dimensional intelligent processing, and standardized output, this invention further provides an embodiment of intelligent processing: First, it features intelligent data quality inspection, with built-in verification rules for the Third National Survey of Ancient and Famous Trees. It can automatically verify the compliance of core data such as tree age, diameter at breast height, coordinates, protection level, and growth status, mark abnormal data, and issue early warnings for erroneous data, replacing the traditional manual check-up mode. Second, intelligent sampling and statistics: For large-scale survey scenarios such as ancient tree clusters, nature reserves, and national parks, the system can automatically generate scientific sampling survey plans based on parameters such as area, distribution density of ancient trees, and protection level, and intelligently collect and summarize data such as the quantity, distribution characteristics, and health status of ancient tree resources. Thirdly, intelligent assisted identification relies on built-in image recognition algorithms to intelligently analyze images of ancient tree trunks, branches, leaves, and pests and diseases captured by mobile devices, automatically determine the health status of ancient trees and the types of pests and diseases, and assist field personnel in quickly entering the judgment results. Fourth, intelligent mapping and classification: the PC can automatically match the geographic base map based on the collected point data and attribute data, intelligently complete the marking of ancient tree points, layer classification, regional distribution map drawing, and automatically organize the data ledger, greatly reducing the workload of manual mapping and data processing in the office.

[0115] This invention is strictly adapted to the national unified census standard and can be adapted to different terrains, environments and census scales. It has strong versatility and adaptability and can be widely used in various work scenarios such as daily inspection, annual update, special census and sampling survey of ancient and famous trees in all regions of the country. It fully meets the work requirements of standardization, high precision, intelligence and efficiency in the census of ancient and famous tree resources.

[0116] The embodiments given above are preferred examples for implementing the present invention, and the present invention is not limited to the above embodiments. Any non-essential additions or substitutions made by those skilled in the art based on the technical features of the present invention are within the protection scope of the present invention.

Claims

1. A system for surveying ancient and famous trees, characterized in that, This includes mobile devices for field data collection and PCs for office processing, with both enabling bidirectional data transmission through the import and export of standardized data packets. The mobile terminal includes a layer management module, a navigation tool module, a track management module, an ancient and famous tree resource survey module, and a quadrat and transect survey module; It also integrates a positioning module; during the field data collection process, the mobile terminal encapsulates the survey results of ancient and famous trees into structured data units in real time according to the data exchange format; in the event of weak network or no network environment, the mobile terminal temporarily stores the data packets in a local encrypted queue; when the network is restored, the mobile terminal sends a synchronization request to the PC, the PC returns a summary list of the currently received data packets, and the mobile terminal only uploads the missing or updated data packets; The PC client includes an engineering management module, a data management module, a data editing module, a results output module, and a map view tool module. The PC client can directly read the standardized offline data package exported from the mobile client in advance, and independently complete the internal processing operations based on the locally stored census standard rules, quality inspection models, and mapping templates. All data generated by dual-end offline operations will be automatically saved locally as complete logs and backup files with timestamps; once the network link is restored, bidirectional data synchronization and updates will be completed by comparing the differences between local data and cloud data.

2. The ancient and famous tree resource survey system as described in claim 1, characterized in that, The standardized data package is based on the GMS 2.0 data exchange format with GeoJSON extension, which uniformly describes census-like elements including ancient tree coordinates, attributes, photos, audio and video, waveform files, and survey logs; the coordinate field is stored using a 7-parameter transformation model under WGS84 ellipsoid, with accuracy retained to the millimeter level; The attribute fields are aligned with the code table and enumeration values ​​in the "Technical Specifications for the Third National Survey of Ancient and Famous Trees". The mobile and PC terminals use an HTTPS / 2 framework that combines differential synchronization and breakpoint resume, supporting incremental synchronization and lossless transmission between the mobile and PC terminals in weak network environments; all transmitted data is encrypted with SM4 symmetric encryption and verified with SM3 hash.

3. The ancient and famous tree resource survey system as described in claim 1, characterized in that, The project management module addresses the project-based and regional management needs of the census work, supporting the creation, opening, saving, and saving as projects, thus enabling full lifecycle management of project files. The data management module enables full-process control of data import, distribution, recycling, data cataloging, calculation, and numbering of ancient and famous trees and ancient tree groups. It supports multi-source data format compatibility and spatial-attribute integrated operation. Multi-source data format compatibility is achieved through a built-in multi-format parsing and adaptation engine and a unified data conversion adapter. The module pre-encapsulates parsing interfaces for commonly used multi-data formats in ancient and famous tree surveys, which can unify various heterogeneous data into the system's preset national standard structured data format. The data editing module supports the entire process of graphic editing, attribute editing, sampling layout, and editing rollback for multiple types of layers, including ancient tree groups, famous ancient trees, quadrats, and transects. It also provides tools for graphic drawing, modification, merging, and segmentation. The output module supports the selective export of business data on ancient and famous trees and ancient tree groups, enabling standardized output and sharing of survey results. The map view tool provides basic map operations, spatial queries, measurement analysis, and layer management, enabling users to efficiently browse, query, analyze, and display spatial data of ancient and famous trees and ancient tree groups, ensuring intuitive presentation and interactive operation of business data.

4. The ancient and famous tree resource survey system as described in claim 3, characterized in that, In the project management module, the new project is used to create a brand new RPD format project file and complete the basic information configuration and spatial reference initialization of the project. The "Open Project" function is used to load existing project files and restore the project context and configuration information. The saved project will write all changes to the current project to the current project file; If there are any unsaved changes, the original file will be overwritten to complete the data persistence. If no changes can be saved, no action is taken. The "Save Project As" option allows you to copy the current project state as a new project file. In the data management module, the data import supports importing vector and tabular data in multiple formats, automatically completes field matching, and enables fast data entry into the database. The data distribution supports filtering data by administrative division and exporting it to a specified path, enabling hierarchical data distribution. After the distribution is completed, a prompt message will pop up. The data recycling function can read external data files and store them back in the database, realizing data collection and updating; select the data file to be recycled, start recycling data, and a prompt message will pop up after recycling is completed; The data catalog allows filtering of layer data in two ways: attribute query and spatial query. Attribute query can filter by layer field or use custom query conditions to retrieve target data. Spatial query allows you to select a target area on the map and automatically extract layer data within that area. After retrieving the results, you can position the graphic at the center of the map to view detailed information about the data and perform field calculations and statistics. The calculations are based on attribute or spatial query results, enabling batch attribute and geometric calculations. The numbering management system can configure numbering rules for ancient tree groups and famous ancient trees according to administrative divisions, thereby achieving standardized numbering generation.

5. The ancient and famous tree resource survey system as described in claim 3, characterized in that, In the data editing module, the editing lifecycle management allows for operations such as starting editing, stopping editing, saving editing, and switching editing modes. Starting editing triggers the editing mode, which locks the ancient tree group layer by default. Stopping editing exits the current editing state, and unsaved editing operations will prompt whether to save. Save edits persists all graphic and attribute changes in the current session to the project file, overwriting the original data; Switch edits allows you to switch editing targets between loaded layers, enabling collaborative editing across multiple layers; The graphics drawing and creation function provides multiple drawing modes to adapt to different scenario requirements; The graphic modification and topology operations include a variety of operations such as deletion, moving, and splitting. The edit rollback and restore functions allow for undo and restore operations; the undo operation can revert to the previous editing operation and can undo unsaved changes step by step; the restore operation corresponds to the undo operation and restores the undone editing steps, which are only available after undoing. The sampling survey layout can be carried out by setting up transects and quadrats. The transect layout is only effective for ancient tree groups of sampling survey and remote sensing survey types. It supports two layout methods: manual drawing and coordinate drawing. Manual drawing is completed by drawing the line segment intersecting with the ancient tree group on the map. Coordinate drawing is completed by inputting the latitude and longitude coordinates of the intersection with the ancient tree group to complete the precise layout of the transect. The auxiliary editing provides capture settings and attribute editing; the capture settings provide node and boundary capture capabilities in operations including graphic drawing, segmentation, edge trimming, and edge sharing, enabling precise snapping of existing graphic nodes and boundaries to ensure topological consistency; the attribute editing allows for the addition, modification, and deletion of attribute information for elements such as ancient tree groups, ancient and famous trees, quadrats, and transects, and synchronously updates the association between graphic and attribute data.

6. The ancient and famous tree resource survey system as described in claim 1, characterized in that, The layer management module is a mobile spatial data visualization and control module that enables full-process management of layers, providing basic support for the intuitive display and precise operation of business data, including ancient and famous trees and ancient tree groups. The track management module is used for monitoring and tracing data during field operations, enabling full lifecycle management of track acquisition parameter configuration, real-time track recording, query display, import and export. The trajectory recording module enables real-time acquisition and file generation of field travel trajectories; The ancient and famous tree resource survey module enables accurate retrieval, verification, supplementation and storage of information on ancient and famous trees and ancient tree groups. It supports surveys through both map and list interfaces and provides auxiliary functions including reporting of doubts about tree age and species, photo collection, data filtering, sorting, navigation and trajectory viewing. The quadrat and transect survey module is divided into quadrat layout and ancient tree survey within the quadrat, according to the ancient tree group sampling survey scenario, and is equipped with auxiliary functions including ancient tree information editing, reporting of doubts, photo collection, and positioning. The quadrat layout is based on the ancient tree group resource survey interface, and includes operations such as collecting, editing and saving information on ancient trees within the quadrat.

7. The ancient and famous tree resource survey system as described in claim 6, characterized in that, The layer management module includes a vector layer management area, a raster layer management area, and a network map management area. Each area can be operated independently and does not interfere with each other. The vector layer management system enables operations including loading, state control, order adjustment, rendering configuration, and positioning of vector data, supporting full lifecycle management of core business vector data. The raster base map management system enables operations including loading, status control, skew correction, rendering, filtering, and removal of raster image data. It supports accurate matching and optimized display of image base maps and adapts to spatial positioning and comparative analysis needs. The network map management system supports online browsing and offline downloading of network maps; online operations can be completed with a network connection, while offline maps can be downloaded in advance for browsing without a network connection in field scenarios.

8. The ancient and famous tree resource survey system as described in claim 6, characterized in that, In the ancient and famous tree resource survey module, the map interface access method requires that the ancient and famous tree layer has been loaded on the map interface and that the layer is visible and selectable. Clicking the icon corresponding to the target ancient and famous tree on the map interface will take you to the details interface of the ancient and famous tree resource survey, which displays the basic information and survey items of the ancient and famous tree. It supports reporting doubts about the tree age and tree species. If doubts about the age or species of ancient trees are found during the survey, information including the reason for the doubt and the preliminary judgment can be entered. This method can take real-time photos of the current state of ancient trees for use in surveys and verification, and allows users to view photos of ancient trees that have been taken or imported. The method of accessing the list interface requires that the list of ancient and famous trees data has been loaded and that the list data is synchronized with the map layer data. Selecting the target ancient and famous tree data in the list will take you to the resource survey details interface of that ancient and famous tree to carry out the survey operation. This method supports sorting function, and clicking the corresponding filter icon in the list can quickly locate the target survey object. It also supports navigation function to guide users to the site of the target ancient and famous tree. Track viewing is also supported, allowing users to view the flight track records related to the survey of the ancient and famous tree.

9. A method for surveying ancient and famous trees based on the ancient and famous tree resource survey system of claim 1, characterized in that, Includes the following operations: 1) Creation of internal engineering After starting the PC system, create an RPD format project file using the new project function, fill in basic information including project name, project path, creator, and project description, and the system will automatically load and display coordinate system information to complete spatial reference initialization; After the project is created, the project data can be persisted and managed through the functions of saving the project and saving the project as a different file, so as to realize the full life cycle management of the census project from creation and modification to archiving; 2) Data preparation and task distribution Based on the data management module, basic census source data is imported first. Among them, vector data of ancient tree groups supports shp and gdb formats, and attribute table data of ancient and famous trees supports xls and xlsx formats. During the data import process, the system completes intelligent matching of fields with the same name according to the national standard census field library. For fields with inconsistent names and non-standard custom fields, manual visualization and mapping configuration is supported to ensure that multi-source heterogeneous data is standardized and unified before standardized entry into the database. After the data is entered into the database, the census data of the target work area can be accurately filtered through the system data catalog module by combining attribute condition query and spatial range query. The administrative division boundary conditions can be superimposed for secondary accurate filtering to lock in the work dataset to be issued. The selected task data, corresponding base map resources, census reporting specifications, quality inspection rules and field templates are then uniformly packaged and packaged to generate a lightweight, offline-usable standardized field operation package. Task distribution supports two controllable flow methods: online synchronous distribution and offline data packet distribution. In areas with good network conditions, the PC can push field operation packages to the mobile operation APP with specified permissions in one click through an encrypted transmission channel, and complete the automatic reception and update of tasks. Operators can choose to "generate job package to local path". The system will package the same job package into a .gmst format file and save it to the folder specified by the user. Field personnel can then import the .gmst file into the "receive task" module of the mobile APP by manually copying or transmitting it over the network. The APP will automatically parse and load the task data and complete the distribution. In remote work areas with no or weak network coverage, the work package can be exported locally from the PC to a specified storage path and transferred to the mobile device via offline file copy. After the mobile device imports the work package, the work task and base map data will be automatically loaded. Operators can directly select the corresponding mobile device drive letter in the configuration window, and the system will automatically package the selected ancient tree group vector data, ancient and famous tree table, associated photo index, and the configuration file for this survey task into a standardized field work package. Standardized field operations can be directly written to a specified directory on the mobile device. Once written, field personnel can unplug the equipment and go out to work. 3) Offline map and terminal parameter configuration On mobile devices, vector business data and raster image base maps are first loaded through the layer management module, and online map pre-caching and offline map download are completed in the network map management function to ensure normal browsing and use in scenarios without network access. The software settings module enables the switching of positioning modes, configuration of basic GPS parameters, Bluetooth pairing and communication debugging of RTK high-precision positioning equipment, and setting of operational parameters including track acquisition and point sampling. Standardized task data sent from the PC is loaded and parsed by reading the local task package through the task import module. 4) Navigation and Precise Positioning Operators select the navigation mode based on the site environment and equipment conditions, and start navigation after selecting the target ancient and famous trees, ancient tree groups or sample plot number. The system provides real-time path and voice guidance; at the same time, in conjunction with the real-time positioning of the map operation module and the electronic compass, the target location can be quickly locked, achieving efficient and accurate arrival at the field survey points; 5) Fieldwork process control Configure time interval or distance interval sampling rules through the track settings function, and customize track display color, line width and transparency; During field operations, the system automatically records the trajectory starting from the current location point. Once the operation is completed, the data collection stops and a standard track file is generated. The system supports multi-dimensional querying of historical tracks, map visualization, import and export, enabling the entire field survey process to be recorded, traceable, and verifiable. 6) Field survey of scattered ancient trees: information collection for each tree For the field survey of scattered ancient and famous trees, under the premise that the layers are loaded normally and the equipment positioning is stable, the ancient tree icon is clicked on the map interface or the target item is selected in the list interface to enter the survey details interface and complete the basic information verification, supplementation and modification; for objects with doubts about the age or species, doubts can be reported, relevant explanatory information can be entered, and photos of the current state of the ancient tree can be taken on site as evidence; all collected data are saved in real time. 7) Field survey of ancient tree groups: sampling survey and quadrat layout For the field sampling survey of ancient tree groups, the target ancient tree group was selected and the survey method was set to sampling survey. The quadrats and transects were accurately laid out by manual drawing or coordinate input. After the layout was completed, the quadrats were entered into the quadrats survey interface to carry out operations including adding, editing, deleting, reporting doubtful information and collecting photos of ancient trees within the quadrats. 8) Field data collection After the fieldwork is completed, the mobile device first encapsulates all the data collected on site, including the coordinates of the points, plant information, and image data, into a standardized data package. Data return can be implemented in two ways: when the network is normal, the mobile device establishes a connection with the PC through an encrypted transmission channel and uploads data packets online with one click; In a network-free environment, data packets can be exported to local storage media and then copied to the PC device; Then, the data recycling function is invoked on the PC to select the corresponding data file for reading, parsing and verification. The system displays the data recycling progress, error prompts and final data entry results in real time. After the data is entered into the database, the existing engineering data is automatically updated and merged, realizing the unified collection and centralized management of field-collected data and indoor engineering data, forming a complete data flow closed loop. 9) Refined editing of internal data Initiate an editing session to perform topological operations on layers such as ancient and famous trees, ancient tree groups, quadrats, and transects, including drawing, moving, deleting, splitting, merging, trimming, and breaking down, while simultaneously adding, modifying, and deleting attribute information; collaborative editing can be achieved by switching between different layers to ensure accurate consistency between spatial data and attribute data, and topological compliance; 10) Standardized processing of internal data The calculation function is used to perform batch attribute calculations and geometric calculations, and to filter, summarize and statistically analyze the data. Then, through the numbering management function, the numbering rules for ancient and famous trees and ancient tree groups are configured according to administrative divisions, and a unified and standardized numbering is automatically generated to achieve standardized management of national census data. 11) Visualization of internal data Through basic map operations, zoom in, zoom out, pan, and full map display are enabled. Coordinate positioning is used to quickly locate target elements and conduct length, area, and other quantitative analysis and multi-temporal data roll-out comparison. It also supports element selection, attribute query and spatial query, and intuitively displays spatial distribution characteristics, providing support for data verification, quality inspection and business analysis; 12) Output of census results Based on business needs, the range of data to be exported is determined by layer filtering, spatial query, or attribute query. The business data of ancient and famous trees and ancient tree groups are packaged according to the system's preset format, generating standardized output files and completing the export.

10. The method for surveying ancient and famous trees as described in claim 9, characterized in that, It also includes the following intelligent processing: The PC client has built-in verification rules for the Third National Survey of Ancient and Famous Trees, which can automatically verify the compliance of core data, including tree age, diameter at breast height, coordinates, protection level, and growth status, mark abnormal data, and provide early warning of erroneous data. The tasks issued by the PC are for large-scale survey scenarios such as ancient tree groups, nature reserves, and national parks. Based on parameters such as area, distribution density of ancient trees, and protection level, the system can automatically generate scientific sampling survey plans and intelligently collect and summarize data such as the quantity, distribution characteristics, and health status of ancient tree resources. Based on image recognition, the mobile terminal intelligently analyzes images of ancient tree trunks, branches, leaves, and pests and diseases captured by the mobile terminal, automatically determines the health status of the ancient tree and the type of pests and diseases, and assists field personnel in quickly entering the judgment results. The PC client can automatically match the collected location data and attribute data with the geographic base map to complete the marking of ancient tree locations, layer classification, and regional distribution map drawing.

Images