Land field investigation system

Abstract

The invention relates to the technical field of field investigation, in particular to a land field investigation system. The method comprises the following steps: firstly, acquiring the position of an investigator through a positioning module, and then calling peripheral sampling point information through a data retrieval module; the user interface module generates a visual map, and the survey auxiliary module presents sample point features on the map and assists in judging the terrain; the sampling point state management module updates the sampling point state according to the comprehensive information; and finally, a local database stores survey data, and a data synchronization module ensures real-time synchronization with a remote server, so that the survey efficiency and accuracy are improved, and flexible adaptation and multi-person cooperation in a complex environment are realized.

Description

Technical Field

[0001] The present application relates to the technical field of field surveys, and in particular to a land field survey system. Background Art

[0002] Land field survey is an important part of land and resources management, involving the collection and analysis of information on land use status, soil type, topography, and other aspects. With the development of information technology, traditional paper records and manual measurement methods can no longer meet the current needs for efficient and accurate surveys. Digital and intelligent land field survey systems have become an inevitable trend in the development of the industry.

[0003] At present, there are some land field survey systems on the market, which usually include basic functions such as GPS positioning, map display, and data collection. These systems can help investigators locate locations, mark sample points, and enter basic data in the field. Some advanced systems also integrate geographic information system (GIS) functions, which can display multi-layer geographic data and assist investigators in making on-site judgments.

[0004] However, the existing land field survey system lacks adaptability to complex terrain and landforms, making it difficult to provide investigators with targeted auxiliary judgments. The survey efficiency and accuracy are low, and this situation needs to be further improved. Summary of the invention

[0005] In order to solve the problem of low survey efficiency and accuracy of existing land field survey systems, this application provides a land field survey system, which adopts the following technical solutions: In a first aspect, the present application provides a land field survey system, characterized in that it includes: The positioning module is used to obtain the real-time geographic location information of the investigator and obtain the current location coordinates of the investigator; A data retrieval module is used to retrieve the corresponding survey sample point information and geographic information system data according to the current position coordinates to obtain the location and status information of the surrounding sample points; A user interface module is used to generate a visual map interface based on the location and status information of the surrounding sample points, and display it to the investigators to obtain an interactive map interface; A survey auxiliary module is used to present the characteristic description of the sample points on the interactive map interface, and to assist in judging the local topography and geomorphology to obtain comprehensive sample point information; A sample point status management module, used to update the status of the corresponding sample point according to the comprehensive sample point information and the input of the investigator, and obtain updated sample point status information; A local database is used to associate and store the comprehensive sample point information and the updated sample point status information to obtain local comprehensive survey data; The data synchronization module is used to synchronize with the remote server based on the local comprehensive survey data to obtain synchronization confirmation information.

[0006] By adopting the above technical solution, when conducting land surveys in mountainous areas, traditional systems are often unable to adapt to terrain changes in a timely manner, making it difficult for investigators to accurately locate and describe sample points. At the same time, data updates are not synchronized when multiple people collaborate, resulting in duplication of work. This application first obtains the location of the investigators through the positioning module, and then retrieves the surrounding sample point information through the data retrieval module; the user interface module generates a visual map, the survey auxiliary module presents the sample point features on the map and assists in judging the terrain; the sample point status management module updates the sample point status based on the comprehensive information; finally, the local database stores the survey data, and the data synchronization module ensures real-time synchronization with the remote server, which improves the efficiency and accuracy of the survey and realizes flexible adaptation and multi-person collaboration in complex environments.

[0007] Optionally, the investigation auxiliary module specifically includes: A terrain analysis unit, used to analyze the terrain characteristics of the current sample point based on the geographic information system data to obtain a terrain classification result; A soil inference unit, used to infer the possible soil type of the current sample point based on the terrain classification result and historical survey data, and obtain a soil type prediction result; Image interpretation unit, used to analyze satellite images, identify the current land use status of the sample point, and obtain the land use type; The information integration unit is used to comprehensively process the terrain classification results, soil type prediction results and land use types, generate sample point feature descriptions, and present them to investigators on the interactive map interface.

[0008] By adopting the above technical solution, when conducting surveys in mountainous and hilly areas, investigators often need to spend a lot of time and energy to analyze the terrain, infer soil types and identify the current land use status, which not only reduces work efficiency but also may introduce human errors; the terrain analysis unit of this application first analyzes the terrain characteristics of the sample points based on the geographic information system data; the soil inference unit combines terrain classification and historical data to infer possible soil types; the image interpretation unit identifies the current land use status by analyzing satellite images; finally, the information integration unit comprehensively processes these results to generate an intuitive sample feature description, which not only greatly improves the efficiency and accuracy of the survey, but also realizes intelligent adaptation to complex terrain environments, significantly reduces on-site judgment time, and improves the quality of the survey.

[0009] Optionally, the sample point status management module specifically includes: A comprehensive information analysis unit, used to analyze the sample point feature description and local topography in the comprehensive sample point information, evaluate the accessibility of the sample point, and obtain a sample point accessibility evaluation result; An input receiving unit, used to receive an investigator's input on the status update of the current sample point, and obtain the investigator's status input; A status judgment unit, used to judge the current status of the sample point according to the sample point accessibility assessment result and the investigator status input, and obtain an updated sample point status; The status marking unit is used to mark the updated sample point status on the interactive map interface to obtain a visual sample point status mark.

[0010] By adopting the above technical solution, when conducting surveys in complex terrain areas, some sample points may be unable to reach or need to be rescheduled due to weather changes, terrain obstacles or human factors. Traditional systems are often unable to reflect these dynamic changes in a timely manner, resulting in frequent adjustments to survey plans and low efficiency. The comprehensive information analysis unit of this application first evaluates the accessibility of the sample points; the input receiving unit obtains the real-time status update of the investigator; the status judgment unit integrates the two aspects of information and intelligently judges the current status of the sample points; finally, the status marking unit makes intuitive markings on the map interface; it not only improves the flexibility and efficiency of the survey, but also realizes intelligent adaptation to complex survey environments, can reflect changes in sample point status in real time, and help investigators and managers quickly adjust survey strategies and optimize resource allocation. At the same time, it improves the efficiency and accuracy of information transmission through visual display.

[0011] Optionally, the sample point status management module further includes: An environmental data acquisition unit is used to acquire real-time weather data and terrain data around the current sample point to obtain environmental status information; A state type adjustment unit, configured to dynamically adjust the optional state types of the sample points according to the environmental condition information and the sample point reachability evaluation result to obtain an adjusted state type set; A state option generating unit, used for generating a sample point state option adapted to the current environment based on the adjusted state type set, and presenting the sample point state option to the investigator on the interactive map interface to obtain an environmental adaptability state option; The input receiving unit is further used to limit the state types that can be selected by the investigator according to the environmental adaptability state options, and obtain the investigator state input under environmental constraints; The state judgment unit is also used to judge the current sample point state according to the investigator state input under the environmental constraints, and obtain the updated sample point state that meets the environmental conditions.

[0012] By adopting the above technical solution, when conducting surveys in mountainous areas, a sample point may become dangerous or inaccessible due to sudden heavy rain or terrain landslides. Traditional systems are often unable to reflect these environmental changes in a timely manner, which may cause investigators to make inappropriate status updates and even endanger safety. The environmental data acquisition unit of the present application first obtains real-time weather and terrain data; the state type adjustment unit dynamically adjusts the optional state type according to environmental conditions; the state option generation unit generates options adapted to the current environment based on the adjusted type set; the input receiving unit limits the scope of choice for the investigator; finally, the state judgment unit ensures that the updated sample point state meets the environmental conditions; it not only improves the safety and reliability of the survey, but also realizes intelligent response to complex and changeable environments, and can automatically adjust the sample point state options according to real-time environmental changes, effectively prevent improper operations, and improve the accuracy and credibility of survey data.

[0013] Optionally, also include: A path planning module is used to plan the optimal survey path based on the location and status information of the surrounding sample points in combination with the geographic information system data to obtain a survey path suggestion; Wherein, the user interface module is also used to display the survey route suggestion on the interactive map interface to obtain a visualized survey route.

[0014] By adopting the above technical solutions, when conducting large-scale land surveys in mountainous areas, investigators often need to travel back and forth between multiple scattered sample points. Traditional methods rely on manual experience to plan routes, which is prone to path duplication, missing sample points, or ignoring terrain obstacles, which seriously affects the efficiency of the survey. The path planning module of this application first conducts a comprehensive analysis based on the location and status information of the surrounding sample points combined with the geographic information system data; then, considering multiple factors such as terrain, distance, and importance of sample points, the optimal survey path is intelligently planned; finally, the user interface module presents the planning results in a visual way on an interactive map; it not only greatly improves the survey efficiency, but also realizes intelligent adaptation to complex terrain and dynamic sample point status, can provide investigators with intuitive and efficient route guidance, significantly reduce unnecessary round trips and duplication of work, optimize the survey sequence, and at the same time consider terrain safety, thereby improving the overall efficiency and quality of field surveys.

[0015] Optionally, also include: A data quality control module is used to perform real-time inspection on the local comprehensive survey data, identify abnormal or incomplete data, and obtain a data quality report; Wherein, the user interface module is also used to display the data quality report on the interactive map interface and mark the sample points that need to be reviewed to obtain a quality control feedback interface.

[0016] By adopting the above technical solution, during large-scale land surveys, investigators may enter erroneous or incomplete data due to fatigue, environmental interference or operational errors. Traditional methods usually conduct data review after the survey is completed, which makes it difficult to discover and correct errors in a timely manner, seriously affecting the reliability of the survey results. The data quality control module of this application first performs real-time checks on local comprehensive survey data to identify abnormal or incomplete data; then, a detailed data quality report is generated; finally, the user interface module intuitively displays the quality report on the interactive map interface and clearly marks the sample points that need to be reviewed, which not only improves the accuracy and completeness of the data, but also realizes dynamic supervision of the survey process and timely error correction.

[0017] Optionally, also include: Offline working module, used to save all local operations and data updates when the network connection is unavailable, and obtain offline operation records; The data synchronization module is also used to automatically synchronize data with the remote server based on the offline operation record after the network is restored to obtain updated synchronization confirmation information.

[0018] By adopting the above technical solution, when conducting investigations in remote mountainous areas or areas with poor signal coverage, investigators often face the problem of network interruption, which makes it impossible to upload data in real time, limits system functions, and even causes work interruption and data loss, seriously affecting investigation efficiency and data integrity; the offline work module of this application is automatically started when the network connection is unavailable, saves all local operations and data updates, and forms offline operation records; when the network is restored, the data synchronization module automatically synchronizes data with the remote server based on these offline records, ensuring that all work results during the offline period are uploaded and saved in a timely and complete manner, which not only ensures the continuity of the investigation work under various network conditions, but also realizes the seamless transmission and integration of data.

[0019] Optionally, also include: The attribute query module is used to implement the multi-layer attribute query function on the interactive map interface, specifically including: A query activation unit, used to receive a user's attribute query request, activate the attribute query function, and obtain a query activation signal; A spatial positioning unit, used to receive a click operation of a user on the interactive map interface, determine the query position coordinates, and obtain a spatial query point; A layer identification unit, used for automatically identifying all available layers at the spatial query point according to the spatial query point, and obtaining a layer list; An attribute extraction unit, used to extract attribute information of each layer at the query position from the layer list to obtain multi-layer attribute data; The user interface module is further used to add an attribute query tool button on the interactive map interface, and switch the toolbar state according to the query activation signal to obtain an interactive map interface including an attribute query function.

[0020] By adopting the above technical solution, the present application provides one-click intelligent query and display of multi-layer attributes. The query activation unit first responds to the user request and activates the query function; the spatial positioning unit accurately locates the query location clicked by the user; the layer identification unit automatically identifies all available layers at the location; the attribute extraction unit extracts relevant attribute information from each layer; finally, the user interface module adds a convenient query tool button to achieve fast switching of functions and result display, thereby improving the efficiency of acquiring attribute information and realizing a comprehensive and rapid understanding of complex geographic information.

[0021] Optionally, the attribute query module further includes: A layer switching unit, used to receive a specific layer selected by a user, filter the attribute information of the corresponding layer from the multiple layer attribute data, and obtain the current layer attribute data; The attribute display unit is used to display the attribute data of the current layer in the form of a pop-up window on the interactive map interface to obtain an attribute query result interface.

[0022] By adopting the above technical solution, the layer switching unit of the present application first responds to the user's demand for selecting a specific layer, and accurately filters out the attribute information of the corresponding layer from the multi-layer attribute data; then, the attribute display unit uses a pop-up window to clearly present the attribute data of the currently selected layer on the interactive map interface; thereby improving the pertinence and efficiency of viewing attribute information and realizing the hierarchical and focused presentation of complex geographic information.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. When conducting land surveys in mountainous areas, traditional systems often cannot adapt to terrain changes in a timely manner, making it difficult for investigators to accurately locate and describe sample points. At the same time, data updates are not synchronized when multiple people collaborate, resulting in duplicate work. This application first obtains the location of the investigators through the positioning module, and then retrieves the surrounding sample point information through the data retrieval module; the user interface module generates a visual map, and the survey auxiliary module presents the sample point features on the map and assists in judging the terrain; the sample point status management module updates the sample point status based on the comprehensive information; finally, the local database stores the survey data, and the data synchronization module ensures real-time synchronization with the remote server, which improves the efficiency and accuracy of the survey and realizes flexible adaptation and multi-person collaboration in complex environments; 2. When conducting surveys in complex terrain areas, some sample points may be inaccessible or need to be rescheduled due to weather changes, terrain obstacles or human factors. Traditional systems are often unable to reflect these dynamic changes in a timely manner, resulting in frequent adjustments to survey plans and low efficiency. The comprehensive information analysis unit of this application first evaluates the accessibility of the sample points; the input receiving unit obtains the real-time status update of the investigators; the status judgment unit integrates the two aspects of information and intelligently judges the current status of the sample points; finally, the status marking unit makes intuitive markings on the map interface; it not only improves the flexibility and efficiency of the survey, but also realizes intelligent adaptation to complex survey environments, can reflect the status changes of sample points in real time, and help investigators and managers quickly adjust survey strategies and optimize resource allocation. At the same time, it improves the efficiency and accuracy of information transmission through visual display; 3. When conducting surveys in mountainous areas, a sample point may become dangerous or inaccessible due to sudden heavy rain or terrain landslides. Traditional systems are often unable to reflect these environmental changes in a timely manner, which may cause investigators to make inappropriate status updates and even endanger safety; the environmental data acquisition unit of the present application first obtains real-time weather and terrain data; the state type adjustment unit dynamically adjusts the optional state type according to environmental conditions; the state option generation unit generates options adapted to the current environment based on the adjusted type set; the input receiving unit limits the scope of choice for investigators; finally, the state judgment unit ensures that the updated sample point state meets environmental conditions; it not only improves the safety and reliability of the survey, but also realizes intelligent response to complex and changeable environments, and can automatically adjust the sample point state options according to real-time environmental changes, effectively preventing improper operations and improving the accuracy and credibility of survey data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural block diagram of a land field survey system according to an embodiment of the present application; Figure 2 This is a structural block diagram of a survey auxiliary module in a land field survey system in an embodiment of the present application; Figure 3 This is a structural block diagram of a sample point status management module in a land field survey system according to an embodiment of the present application; Figure 4 This is another structural block diagram of a land field survey system according to an embodiment of the present application; Figure 5 This is a structural block diagram of an attribute query module in a land field survey system according to an embodiment of the present application; Figure 6 This is a schematic diagram of an interface for layer query in a land field survey system according to an embodiment of the present application; Figure 7 This is another interface schematic diagram of layer query in a land field survey system in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more listed items.

[0026] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0027] In the first aspect, the present application provides a land field survey system, referring to Figure 1 ,The land field survey system includes a positioning module, a data retrieval module, a user interface module, a survey ,assistance module, a sample point status management module, a local database and a data synchronization module.

[0028] The positioning module is used to obtain the real-time geographic location information of the investigator and obtain the current location coordinates of the investigator.

[0029] In this embodiment, the positioning module is integrated in the mobile device, and can be implemented by using the Global Positioning System (GPS), Beidou Satellite Navigation System or other positioning technologies. The positioning module can also be connected to the system as an independent external device.

[0030] Specifically, the positioning module automatically obtains the geographical location information of the investigators at a preset time interval, and the obtained information includes data such as longitude, latitude, and altitude.

[0031] The data retrieval module is used to retrieve the corresponding survey sample point information and geographic information system data according to the current position coordinates, and obtain the location and status information of the surrounding sample points.

[0032] In this embodiment, the survey sample point information includes the coordinates, number, type and other basic information of the preset location to be surveyed. The GIS data includes multi-level geographic spatial information such as topography, landform, vegetation coverage, land use type and so on.

[0033] Specifically, after the positioning module obtains the current location coordinates of the investigator, the data retrieval module first defines a search range, such as a circular area with a radius of 5 kilometers centered on the current location. Then, all survey sample points are searched within this range to obtain their location coordinates and current status (such as unsurveyed, under investigation, completed, etc.). At the same time, the module will also retrieve the GIS data of the area, namely the geographic information system, including but not limited to digital elevation models, land use classification maps, vegetation coverage maps, etc.

[0034] The user interface module is used to generate a visual map interface based on the location and status information of the surrounding sample points, and display it to the investigators to obtain an interactive map interface.

[0035] Specifically, the user interface module renders the basic map layer according to the current location and the retrieved GIS data, including terrain, roads, water systems and other elements. Then, the retrieved survey sample points are marked on the map, and different icons or colors are used to indicate the different status of the sample points (for example, red indicates unsurveyed, yellow indicates under investigation, and green indicates completed). The map interface supports basic zooming and panning operations, and users can operate the map through a touch screen or a mouse. In addition, the interface may also include a layer control panel that allows users to choose to display or hide specific information layers (such as terrain layers, sample point layers, etc.).

[0036] The survey auxiliary module is used to present the sample point feature description on the interactive map interface, and to assist in judging the local topography and obtaining comprehensive sample point information.

[0037] Specifically, when the investigator selects a sample point, the survey auxiliary module will pop up an information window on the interface to display the detailed feature description of the sample point, such as land use type, vegetation coverage, soil type and other preset attribute information. At the same time, based on GIS data, it generates a local terrain profile or 3D terrain model to help investigators intuitively understand the terrain undulations. In addition, the survey auxiliary module also includes simple terrain analysis tools, such as slope calculation and viewshed analysis, to assist investigators in judging terrain characteristics and accessibility.

[0038] The sample point status management module is used to update the status of the corresponding sample point according to the comprehensive sample point information and the input of the investigators to obtain the updated sample point status information.

[0039] In this embodiment, the sample point status management module is responsible for tracking and updating the real-time status of each survey sample point.

[0040] Specifically, when the investigator arrives at a sample point and starts the investigation, the status of the sample point is changed from "uninvestigated" to "under investigation" through user interface operations. After completing the investigation, the investigator can update the status to "completed" again and enter the survey result data. The sample point status management module will process these operations in real time, update the status information of the sample point, and feed back the updated information to the user interface module so that the display status of the sample point can be updated in real time on the map (such as changing the icon color). In addition, the module also automatically prompts the nearest uninvestigated sample point based on the location of the investigator, and automatically calculates and displays statistical information such as the completion rate according to the progress of the investigation, helping investigators to manage and complete investigation tasks more effectively.

[0041] The local database is used to associate and store the comprehensive sample point information and the updated sample point status information to obtain the local comprehensive survey data.

[0042] The data synchronization module is used to synchronize with the remote server based on the local comprehensive survey data and obtain synchronization confirmation information.

[0043] In this embodiment, the data synchronization module establishes a data transmission channel between the local device and the remote server, uploads the local comprehensive survey data to the remote server regularly or on demand, and can also download the latest basic data or task information from the server.

[0044] In one embodiment, referring to Figure 2 , the investigation auxiliary module specifically includes: The terrain analysis unit is used to analyze the terrain characteristics of the current sample point based on the geographic information system data to obtain the terrain classification result.

[0045] Specifically, the terrain analysis unit extracts the DEM data of the current sample point and its surrounding area from the GIS database. Then, a series of terrain parameters are calculated, such as slope, aspect, terrain relief, terrain position index, etc. Based on these parameters, the unit classifies the sample points using preset terrain classification standards (such as plains, hills, and mountains based on slope, or ridges, slopes, and valleys based on landform morphology).

[0046] The soil inference unit is used to infer the possible soil type of the current sample point based on the terrain classification results and historical survey data, and obtain the soil type prediction result.

[0047] Specifically, the soil inference unit will first retrieve historical survey data from the system database. The historical survey data contains information on soil samples collected in the past under similar terrain conditions. Then, through the preset prediction model, the prediction model uses terrain features (such as slope, aspect, altitude, etc.) as input variables and the soil type in the historical data as the target variable for training. After the training is completed, the model can predict the possible soil type of the current sample point based on its terrain characteristics. For example, if the sample point is located in a mountain valley, and historical data shows that the area is mostly alluvial soil, then the model may predict that the soil type of the sample point is alluvial soil. The soil inference unit not only gives the predicted soil type, but also provides the confidence level of the prediction to help investigators judge the reliability of the prediction results.

[0048] The image interpretation unit is used to analyze satellite images, identify the land use status of the current sample point, and obtain the land use type.

[0049] Specifically, the image interpretation unit obtains high-resolution satellite images covering the current sample point from the system database or real-time remote sensing data source, and then identifies different features in the image, such as vegetation cover, buildings, water bodies, etc., and classifies them into corresponding land use types.

[0050] The information integration unit is used to comprehensively process the terrain classification results, soil type prediction results and land use types, generate sample point feature descriptions, and present them to investigators on an interactive map interface.

[0051] In this embodiment, the information integration unit intelligently integrates information from different sources such as terrain analysis, soil inference and image interpretation to generate a comprehensive and concise sample point feature description report, and presents it to investigators in an intuitive and easy-to-understand manner through an interactive map interface.

[0052] In one embodiment, referring to Figure 3 , the sample point status management module specifically includes: The comprehensive information analysis unit is used to analyze the sample point feature description and local topography in the comprehensive sample point information, evaluate the accessibility of the sample point, and obtain the sample point accessibility evaluation result.

[0053] Specifically, the comprehensive information analysis unit extracts comprehensive information of the current sample point from the system database, including terrain characteristics, soil type, land use status, etc. Then, the information is processed using a preset evaluation algorithm. For example, for terrain characteristics, the unit considers factors such as slope, altitude, and terrain undulation; for land use status, it analyzes whether there are obstacles such as buildings and water bodies. The evaluation algorithm uses a weighted scoring method to assign weights to different factors and calculate a comprehensive accessibility score.

[0054] Furthermore, the unit can also take into account seasonal factors, such as the rainy season may reduce the accessibility score of some areas. The evaluation results include not only numerical scores, but also descriptive suggestions, such as "easy to reach", "difficult to reach" or "requires professional equipment", etc., which provide important references for subsequent status judgment and field investigation.

[0055] The input receiving unit is used to receive the investigator's input of the status update of the current sample point to obtain the investigator's status input.

[0056] Specifically, the input receiving unit provides multiple input methods for investigators through an interactive map interface. For example, the unit may design a series of predefined status options, such as "completed investigation", "unreachable", etc., and investigators can select them through simple clicks or drop-down menus. At the same time, the unit may also provide a free text input box, allowing investigators to enter a more detailed status description or special situation description.

[0057] The state judgment unit is used to judge the current state of the sample point according to the sample point accessibility assessment result and the investigator's state input, and obtain the updated sample point state.

[0058] Specifically, the status judgment unit uses a decision tree to consider the sample point accessibility assessment results and the investigator status input. During the judgment process, the unit will weigh the reliability and timeliness of the two information sources. For example, if the accessibility assessment results show that the sample point is "easy to reach", but the investigator input indicates that it is "unreachable", the status judgment unit may give priority to the investigator's on-site feedback, update the sample point status to "unreachable", and mark the need to re-evaluate the accessibility.

[0059] The status marking unit is used to mark the updated sample point status on the interactive map interface to obtain a visual sample point status mark.

[0060] Specifically, the status marking unit will select the corresponding visual expression method according to the sample status information output by the status judgment unit. For example, the unit may use different colors to represent different sample statuses: green for "completed survey", yellow for "in progress", red for "unreachable", etc. In addition to color coding, the unit may also use different icons or symbols to enhance visual distinction, such as using a flag icon to indicate "completed" and a question mark icon to indicate "need confirmation".

[0061] In one embodiment, the sample point state management module further includes: The environmental data acquisition unit is used to acquire real-time weather data and terrain data around the current sample point to obtain environmental status information.

[0062] In this embodiment, the environmental data acquisition unit collects and processes dynamic data related to the surrounding environment of the sample point in real time, and provides the latest environmental background information for the sample point status management.

[0063] Specifically, the environmental data acquisition unit collects data through multiple channels. For weather data, the unit may connect to a professional meteorological data service API to obtain detailed meteorological information including temperature, humidity, precipitation, wind speed, visibility, etc. in real time. The terrain data comes from the system's built-in geographic information database and is updated in combination with satellite remote sensing data. The unit sets the frequency of data updates, such as updating weather data once an hour and updating terrain data once a day. In addition, the unit also integrates warning information from local governments or other authoritative agencies, such as heavy rain warnings and geological disaster warnings. The environmental data acquisition unit not only collects data, but also performs preliminary processing and analysis on the data. For example, it may calculate the debris flow risk index in a local area based on precipitation and terrain slope, or evaluate the feasibility of aerial photography surveys based on visibility and wind speed.

[0064] The state type adjustment unit is used to dynamically adjust the optional sample point state type according to the environmental status information and the sample point reachability evaluation result to obtain an adjusted state type set.

[0065] Specifically, the state type adjustment unit will first obtain input data from the environmental data acquisition unit and the comprehensive information analysis unit. Then, the unit uses the preset rule engine to process this data. For example, if the environmental status information shows that there is a heavy rain warning in the current area, and the sample point is located in a mountainous area, the unit may automatically add state types such as "professional equipment required" or "postponed investigation" to the optional list, and may temporarily remove the "normal investigation" option. For another example, if the sample point accessibility assessment results show that the point is located in the mountains and the nearest road is more than 10 kilometers away, the unit may add a "special transportation required" state type.

[0066] The state option generating unit is used to generate the sample point state options adapted to the current environment based on the adjusted state type set, and present them to the investigators on the interactive map interface to obtain the environmental adaptability state options.

[0067] The input receiving unit is also used to limit the state types that can be selected by the investigator according to the environmental adaptability state options, and obtain the investigator state input under environmental constraints.

[0068] The state judgment unit is also used to judge the current sample point state according to the investigator state input under environmental constraints, and obtain the updated sample point state that meets the environmental conditions.

[0069] Specifically, the state judgment unit receives the investigator's state input under the environmental constraints from the input receiving unit. Then, combined with the previous sample point accessibility assessment results and the current environmental conditions information, a comprehensive analysis is performed using a preset judgment algorithm. For example, if the state input by the investigator is "special equipment required", and the environmental data shows that there is currently a heavy rain warning, the state judgment unit may update the sample point status to "suspended investigation-weather reasons" and attach a priority mark, indicating that the survey of this sample point needs to be arranged first after the weather improves.

[0070] In one embodiment, referring to Figure 4 , also includes: The path planning module is used to plan the optimal survey path based on the location and status information of the surrounding sample points and combine it with the geographic information system data to obtain survey path suggestions.

[0071] The user interface module is also used to display survey path suggestions on an interactive map interface to obtain a visualized survey path.

[0072] In one embodiment, it further includes: The data quality control module is used to conduct real-time inspection of local comprehensive survey data, identify abnormal or incomplete data, and obtain data quality reports.

[0073] The user interface module is also used to display the data quality report on the interactive map interface, mark the sample points that need to be reviewed, and obtain the quality control feedback interface.

[0074] In one embodiment, it further includes: The offline working module is used to save all local operations and data updates and obtain offline operation records when the network connection is unavailable.

[0075] Among them, the data synchronization module is also used to automatically synchronize data with the remote server based on the offline operation record after the network is restored, and obtain updated synchronization confirmation information.

[0076] In one embodiment, referring to Figure 5 , also includes: The attribute query module is used to implement multi-layer attribute query functions on the interactive map interface, including: The query activation unit is used to receive the user's attribute query request, activate the attribute query function, and obtain a query activation signal.

[0077] The spatial positioning unit is used to receive the user's click operation on the interactive map interface, determine the query position coordinates, and obtain the spatial query point.

[0078] The layer identification unit is used to automatically identify all available layers on the spatial query point according to the spatial query point to obtain a layer list.

[0079] The attribute extraction unit is used to extract the attribute information of each layer at the query position from the layer list to obtain multi-layer attribute data.

[0080] The user interface module is also used to add attribute query tool buttons on the interactive map interface and provide users with layer options for selecting attribute queries, such as Figure 6 and Figure 7 As shown, the toolbar status is switched according to the query activation signal to obtain an interactive map interface that includes attribute query function.

[0081] Furthermore, the attribute query module also includes: The layer switching unit is used to receive a specific layer selected by a user, filter the attribute information of the corresponding layer from the multi-layer attribute data, and obtain the current layer attribute data.

[0082] The attribute display unit is used to display the current layer attribute data in the form of a pop-up window on the interactive map interface to obtain the attribute query result interface.

[0083] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A land field survey system, characterized in that: include: The positioning module is used to obtain the real-time geographic location information of the investigator and obtain the current location coordinates of the investigator; A data retrieval module is used to retrieve the corresponding survey sample point information and geographic information system data according to the current position coordinates to obtain the location and status information of the surrounding sample points; A user interface module is used to generate a visual map interface based on the location and status information of the surrounding sample points, and display it to the investigators to obtain an interactive map interface; A survey auxiliary module is used to present the characteristic description of the sample points on the interactive map interface, and to assist in judging the local topography and geomorphology to obtain comprehensive sample point information; A sample point status management module, used to update the status of the corresponding sample point according to the comprehensive sample point information and the input of the investigator, and obtain updated sample point status information; A local database is used to associate and store the comprehensive sample point information and the updated sample point status information to obtain local comprehensive survey data; The data synchronization module is used to synchronize with the remote server based on the local comprehensive survey data to obtain synchronization confirmation information.

2. The land field survey system according to claim 1, characterized in that: The investigation auxiliary module specifically includes: A terrain analysis unit, used to analyze the terrain characteristics of the current sample point based on the geographic information system data to obtain a terrain classification result; A soil inference unit, used to infer the possible soil type of the current sample point based on the terrain classification result and historical survey data, and obtain a soil type prediction result; Image interpretation unit, used to analyze satellite images, identify the current land use status of the sample point, and obtain the land use type; The information integration unit is used to comprehensively process the terrain classification results, soil type prediction results and land use types, generate sample point feature descriptions, and present them to investigators on the interactive map interface.

3. The land field survey system according to claim 2, characterized in that: The sample point status management module specifically includes: A comprehensive information analysis unit, used to analyze the sample point feature description and local topography in the comprehensive sample point information, evaluate the accessibility of the sample point, and obtain a sample point accessibility evaluation result; An input receiving unit, used to receive an investigator's input on the status update of the current sample point, and obtain the investigator's status input; A state judgment unit, used to judge the current state of the sample point according to the sample point accessibility assessment result and the investigator state input, and obtain an updated sample point state; The state marking unit is used to mark the updated sample point state on the interactive map interface to obtain a visual sample point state mark.

4. The land field survey system according to claim 3, characterized in that: The sample point state management module also includes: An environmental data acquisition unit is used to acquire real-time weather data and terrain data around the current sample point to obtain environmental status information; A state type adjustment unit, configured to dynamically adjust the optional state types of the sample points according to the environmental condition information and the sample point reachability evaluation result to obtain an adjusted state type set; A state option generating unit, used for generating a sample point state option adapted to the current environment based on the adjusted state type set, and presenting the sample point state option to the investigator on the interactive map interface to obtain an environmental adaptability state option; The input receiving unit is further used to limit the state types that can be selected by the investigator according to the environmental adaptability state options, and obtain the investigator state input under environmental constraints; The state judgment unit is also used to judge the current sample point state according to the investigator state input under the environmental constraints, and obtain the updated sample point state that meets the environmental conditions.

5. The land field survey system according to claim 1, characterized in that: Also includes: A path planning module is used to plan the optimal survey path based on the location and status information of the surrounding sample points in combination with the geographic information system data to obtain a survey path suggestion; Wherein, the user interface module is also used to display the survey route suggestion on the interactive map interface to obtain a visualized survey route.

6. The land field survey system according to claim 1, characterized in that: Also includes: A data quality control module is used to perform real-time inspection on the local comprehensive survey data, identify abnormal or incomplete data, and obtain a data quality report; Wherein, the user interface module is also used to display the data quality report on the interactive map interface and mark the sample points that need to be reviewed to obtain a quality control feedback interface.

7. The land field survey system according to claim 1, characterized in that: Also includes: Offline working module, used to save all local operations and data updates when the network connection is unavailable, and obtain offline operation records; The data synchronization module is also used to automatically synchronize data with the remote server based on the offline operation record after the network is restored to obtain updated synchronization confirmation information.

8. The land field survey system according to claim 1, characterized in that: Also includes: The attribute query module is used to implement the multi-layer attribute query function on the interactive map interface, specifically including: A query activation unit, used to receive a user's attribute query request, activate the attribute query function, and obtain a query activation signal; A spatial positioning unit, used to receive a click operation of a user on the interactive map interface, determine the query position coordinates, and obtain a spatial query point; A layer identification unit, used for automatically identifying all available layers at the spatial query point according to the spatial query point, and obtaining a layer list; An attribute extraction unit, used to extract attribute information of each layer at the query position from the layer list to obtain multi-layer attribute data; The user interface module is further used to add an attribute query tool button on the interactive map interface, and switch the toolbar state according to the query activation signal to obtain an interactive map interface including an attribute query function.

9. The land field survey system according to claim 8, characterized in that: The attribute query module also includes: A layer switching unit, used to receive a specific layer selected by a user, filter the attribute information of the corresponding layer from the multiple layer attribute data, and obtain the current layer attribute data; The attribute display unit is used to display the attribute data of the current layer in the form of a pop-up window on the interactive map interface to obtain an attribute query result interface.

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