Field investigation system and method and mobile terminal

Abstract

The invention relates to a field investigation system and method and a mobile terminal, and belongs to the technical field of surveying and mapping engineering.The field investigation system comprises a task package import module, a data filling module and a navigation module; the task package import module is used for importing a to-be-investigated task package, and the to-be-investigated task package comprises an investigation area selection task and an investigation area filling task; the data filling module is used for receiving field survey data of the target survey area; the target investigation area is determined according to the investigation area selection task, and the field investigation data is filled into an investigation area filling task of the target investigation area; and the navigation module is used for planning a navigation path from the position of the mobile terminal to the target investigation area when the field investigation data does not meet the filling requirements, and performing navigation based on the navigation path. According to the invention, field investigators can conveniently and timely arrive at the target investigation area for field investigation, and the filling accuracy of field investigation data is improved.

Description

Technical Field

[0001] The present invention relates to the field of surveying and mapping engineering technology, and in particular to a field investigation system, method and mobile terminal. Background Art

[0002] With the continuous development of agricultural technology, research on the planting conditions of different crops has gradually deepened.

[0003] Existing technologies usually estimate crop yields by monitoring the planting conditions of crops in sample villages. The acquisition of crop planting conditions in sample villages is usually done through remote sensing measurements. However, the image quality of remote sensing measurements is poor, the ground features are unclear, and human intervention is required. In addition, the sample areas of sample villages are random and have a small range. It is impossible to accurately determine the plant species in the sample through remote sensing images alone. In addition, the reporting of crop data for sample villages is usually carried out indoors, requiring a lot of communication with field investigators to determine the reporting status of crop data for each plot in the sample village, resulting in slow reporting of crop data.

[0004] It can be seen that in the prior art, the investigation and reporting of crop data are carried out separately, which makes the crop data reporting process complicated and the progress slow. Summary of the Invention

[0005] In view of this, it is necessary to provide a field survey system, method and mobile terminal to solve the problem in the prior art that the survey and reporting of crop data are carried out separately, resulting in a complicated crop data reporting process and slow progress.

[0006] In order to solve the above problems, in a first aspect, the present invention provides a field survey system suitable for a mobile terminal, comprising a task package import module, a data reporting module and a navigation module; The task package import module is used to import the task package to be investigated, which includes the task of selecting the investigation area and the task of filling in the investigation area. The data reporting module is used to receive the field survey data of the target survey area; and report the field survey data to the survey area reporting task of the target survey area. The target survey area is determined according to the survey area selection task; The navigation module is used to plan a navigation path from the location of the mobile terminal to the target survey area and perform navigation based on the navigation path when the field survey data does not meet the reporting requirements.

[0007] In one possible implementation, the data reporting module includes a survey area selection control, which is used to display selectable survey areas and the field survey data reporting progress of each selectable survey area, and is also used to receive a survey area selection operation and display a field survey data reporting page for the target survey area based on the survey area selection operation.

[0008] In a possible implementation, the data reporting module includes a data receiving interface; The data receiving interface is used to receive a plot division vector diagram of the area to be surveyed and a remote sensing orthophoto image of the area to be surveyed; wherein the plot division vector diagram is used to divide the plots to be surveyed in the target survey area, and the remote sensing orthophoto image is used to display crop images of each plot to be surveyed; The field survey data reporting page is used to display the plot division vector map of the target survey area and the remote sensing orthophoto corresponding to each plot division vector map, wherein the remote sensing orthophoto and the corresponding plot division vector map are superimposed and displayed.

[0009] In a possible implementation, the data reporting module includes multiple data reporting controls, which are used to receive the user's field survey data reporting operations and display the field survey data reporting results on the field survey data reporting page based on the field data reporting operations.

[0010] In a possible embodiment, the field survey system also includes a field image acquisition module, which is used to collect and display field images of the target survey area when the field survey data does not meet the reporting requirements, wherein the field images include crop images of each plot in the target area to be investigated.

[0011] In a possible implementation, the data reporting module further includes a survey period selection control, which is used to select a target survey period for which field survey data needs to be collected, wherein the target survey period includes a spring sowing period, a summer sowing period, and an autumn and winter sowing period.

[0012] In a possible embodiment, the field survey system also includes a data export module, which is used to export the field survey data reporting results of the area to be surveyed, and the field survey data reporting results are used to display the crop planting types, crop planting distribution and crop planting area statistics in each of the areas to be surveyed.

[0013] In a possible implementation, the field survey system further includes a missed reporting reminder module, which is configured to remind unreported plots within the target survey area.

[0014] In a second aspect, the present invention further provides a field investigation method applicable to the field investigation system in any of the aforementioned embodiments, comprising: Obtain the task package to be investigated, which includes the task of selecting the investigation area and the task of filling in the investigation area report; Receive field survey data from the target survey area and report the field survey data to the survey area reporting task for the target survey area. The target survey area is determined based on the survey area selection task. When the field survey data does not meet the reporting requirements, a navigation path from the location of the mobile terminal to the target survey area is planned, and navigation is performed based on the navigation path.

[0015] In a third aspect, the present invention further provides a mobile terminal comprising a memory and a processor, wherein: The memory stores the field investigation system in any one of the above embodiments; The processor is coupled to the memory and is used to implement the above-mentioned field investigation method based on the field investigation system.

[0016] The beneficial effects of the present invention are as follows: the field survey system provided by the present invention is applied to a mobile terminal, which is convenient for field investigators to directly fill in field survey data on the spot. The task package to be surveyed is imported through the task package import module, which can clarify the area to be surveyed and the data reporting task of the area to be surveyed. The target survey area is selected through the data reporting module, and the field survey data of the target survey area is received, and the field survey data is reported to the survey area reporting task of the target survey area, thereby realizing the on-site reporting of the field survey data. When the field survey data does not meet the reporting requirements, a navigation path from the location of the mobile terminal to the target survey area is planned, and navigation is performed based on the navigation path, which is convenient for field investigators to arrive at the target survey area in time for field investigation, thereby improving the reporting accuracy of the field survey data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic structural diagram of a field survey system provided by an embodiment of the present invention; Figure 2 A schematic diagram of a survey area selection control provided by an embodiment of the present invention; Figure 3 A field survey data reporting page provided by an embodiment of the present invention; Figure 4 A schematic diagram of a data reporting control page provided by an embodiment of the present invention; Figure 5 A schematic diagram of a crop selection page provided by an embodiment of the present invention; Figure 6 A schematic diagram of a special situation description page provided in an embodiment of the present invention; Figure 7 A schematic diagram of a property refresh page provided by an embodiment of the present invention; Figure 8 A schematic diagram of a multiple-selection page provided by an embodiment of the present invention; Figure 9 A schematic diagram of a sample village statistics page provided by an embodiment of the present invention; Figure 10 A schematic diagram of a survey data statistics page provided by an embodiment of the present invention; Figure 11 A schematic diagram of a survey period selection control page provided by an embodiment of the present invention; Figure 12 A schematic diagram of a flow chart of a field investigation method provided by an embodiment of the present invention; Figure 13 A structural diagram of a mobile terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] A specific embodiment of the present invention, as Figure 1 As shown, a field survey system is disclosed, which is applicable to mobile terminals and includes a task package import module 101, a data reporting module 102 and a navigation module 103; The task package importing module 101 is used to import the task package to be investigated, which includes the task of selecting the investigation area and the task of filling in the investigation area report; The data reporting module 102 is used to receive the field survey data of the target survey area and report the field survey data to the survey area reporting task of the target survey area; the target survey area is determined according to the survey area selection task; The navigation module 103 is used to plan a navigation path from the location of the mobile terminal to the target survey area and perform navigation based on the navigation path when the field survey data does not meet the reporting requirements.

[0022] In an embodiment of the present invention, the provided field survey system is suitable for a mobile terminal, which may be a portable electronic device such as a smart phone or a tablet computer. The field survey system provided by the present invention may be used as application software in the mobile terminal to implement reporting of the field survey system.

[0023] In an embodiment of the present invention, a task package import module is used to import a pending survey task package. This pending survey task package is generated in advance based on a survey task for the pending survey area and includes a survey area selection task and a survey area reporting task. The survey area selection task allows the user to select a target survey area, and the survey area reporting task allows the user to report field survey data for the target survey area. Specifically, the pending survey area can be a sample village, and the field survey data can be plant planting data for each plot within the sample village.

[0024] In an embodiment of the present invention, a data reporting module is configured to receive field survey data for a target survey area, where the field survey area may include information on the planting conditions of various crops within the target survey area. The target survey area is determined by the user based on a survey area selection task. For example, the survey area selection task may provide multiple sample villages for the user to select, and the user may select one or more of these sample villages as the target survey area. The field survey data collected may include data on the target survey area, such as crop planting data within the target sample village. Alternatively, the field survey data may include image data of farmland within the target sample village. The user may identify the crops planted in each farmland within the sample village based on the image data and report the data.

[0025] In an embodiment of the present invention, for certain plots in the target survey area, the field survey data may not meet the reporting requirements. For example, the field survey data is unclear, the location is unclear, and field survey personnel are required to collect data on the spot. The navigation module can then plan a navigation path from the field survey personnel's location to the target survey area. Specifically, the navigation path to a specific plot in the target survey area can be accurately planned, making it easier for field survey personnel to travel there. Specifically, existing navigation software can be used for navigation.

[0026] The field survey system provided by the present invention is applied to a mobile terminal, and is convenient for field survey personnel to directly report field survey data on the spot. By importing a survey task package through a task package import module, the area to be surveyed and the data reporting task of the area to be surveyed can be clarified. The target survey area is selected through the data reporting module, and the field survey data of the target survey area is received, and the field survey data is reported to the survey area reporting task of the target survey area, thereby realizing the on-site reporting of the field survey data. When the field survey data does not meet the reporting requirements, a navigation path from the location of the mobile terminal to the target survey area is planned, and navigation is performed based on the navigation path, thereby facilitating field survey personnel to arrive at the target survey area in a timely manner for field investigation, thereby improving the reporting accuracy of the field survey data.

[0027] In some possible embodiments of the present invention, the data reporting module includes a survey area selection control, which is used to display selectable survey areas and the field survey data reporting progress of each selectable survey area, and is also used to receive a survey area selection operation and display a field survey data reporting page for the target survey area based on the survey area selection operation.

[0028] In the embodiment of the present invention, Figure 2 The figure shows a possible survey area selection control diagram. The survey area selection control will display the available survey areas. Specifically, the selectable survey areas can be selectable sample villages. When displaying the selectable sample villages, the survey data reporting progress of each selectable sample village will be displayed simultaneously, including the survey data and the survey data in the form of percentage. Users can enter the field survey data reporting page of the target sample village by selecting the target sample village.

[0029] The embodiment of the present invention displays selectable survey areas through a survey area selection control, and enters a field survey data reporting page for the target survey area based on the user's survey area selection operation, so that the user can understand the survey progress and data reporting of the sample village.

[0030] In some possible embodiments of the present invention, the data reporting module includes a data receiving interface; The data receiving interface is used to receive the land parcel division vector diagram and the remote sensing orthophoto image of the area to be surveyed; The field survey data reporting page is used to display the plot division vector map of the target survey area and the remote sensing orthophoto images corresponding to each plot division vector map.

[0031] In the embodiment of the present invention, the field survey data of the target survey area can be directly imported through the data receiving interface of the data reporting module. The data receiving interface can be a wired data interface or a wireless data interface.

[0032] In an embodiment of the present invention, the field survey data includes but is not limited to a plot division vector diagram of the area to be surveyed and a remote sensing orthophoto image of the area to be surveyed. The plot division vector diagram of the area to be surveyed is used to display the division status of each plot in the area to be surveyed. The remote sensing orthophoto image of the area to be surveyed includes crop images of each plot to be surveyed, which is used to display the planting status of crops in each plot.

[0033] In the embodiment of the present invention, the field survey data filling page is used to display the plot division vector diagram of the target survey area and the remote sensing orthophoto corresponding to each plot division vector diagram, such as Figure 3 The figure shows a possible field survey data reporting page, which includes the division of each plot in the target sample village and displays the remote sensing orthophoto of each plot. The remote sensing orthophoto is superimposed with the corresponding plot division vector map. Users can report the crop planting situation of each plot based on the remote sensing orthophoto of each plot.

[0034] The embodiment of the present invention realizes the reception of field survey data through a data receiving interface, and displays the field survey data through a field survey data reporting page, so as to facilitate user reporting.

[0035] In some possible embodiments of the present invention, the data reporting module includes multiple data reporting controls, which are used to receive the user's field survey data reporting operations and display the field survey data reporting results on the field survey data reporting page based on the field data reporting operations.

[0036] In the embodiment of the present invention, Figure 4-10As shown, the data reporting module includes multiple data reporting controls, such as the [Attribute Brush], [Menu Bar], and [Drawer Control]. These three controls contain multiple sub-controls. The [Attribute Brush] allows you to report multiple plots in the target sample village at once, annotate the land feature type of each plot, and provide special explanations for each plot, such as "early rice damaged by disasters should be replaced with medium rice." The menu bar includes, but is not limited to, [Save], [Undo], [Restore], [Select], [Attribute Filter], [Clear Selection Status], [Check for Missing Plots], [Total Area of ​​Certain Types of Plots], and [Export Report Results]. The functions of each control are as follows: [Save]: Saves the current operation. [Undo]: Undoes the last operation. [Restore]: Restores your undone operation. [Select]: After entering select mode, you can select multiple plots for reporting. [Attribute Filter]: Click [Attribute Filter] in the [Menu Bar] to select any type of plot. Swiping up the page allows you to filter for more feature types. Click [Select All] in the upper left corner to select all land types with one click, and click [Cancel All] in the upper right corner to deselect all land types; [Clear selection status]: Click [Clear selection status] in the [Menu bar] to deselect the land. [Total area of ​​a certain type of land]: Click [Total area of ​​a certain type of land] in the [Menu bar] to view the area summary information of all land types. [Zoom in]: Zoom in on the map. [Zoom out]: Zoom in and out on the map. The map also supports multi-finger touch for conventional map zooming. [Zoom to whole village]: The map will be zoomed to the scale of the entire map displayed on one screen of the terminal device. [Zoom to current]: When the user clicks the [Zoom to current] button, the map will be zoomed in and out according to a certain ratio based on the investigator's location as the center (if there is no investigator location information, the map will be zoomed in and out according to a certain ratio based on the center of the display).

[0037] The embodiment of the present invention can realize multiple functions of data reporting by providing multiple data reporting controls, making it convenient for users to perform data reporting.

[0038] In some possible embodiments of the present invention, the field survey system also includes a field image acquisition module, which is used to collect and display field images of the target survey area when the field survey data does not meet the reporting requirements, wherein the field images include crop images of each plot in the target area to be investigated.

[0039] In an embodiment of the present invention, when the field survey data does not meet the data reporting requirements, the field survey data of the target survey area can be collected through the field image acquisition module. Specifically, the image acquisition device provided by the mobile terminal can be used, or a drone can be used for photography to obtain field images of the target survey area.

[0040] In some possible embodiments of the present invention, the data reporting module further includes a survey period selection control, which is used to select a target survey period for which field survey data is required. The target survey period includes spring sowing period, summer sowing period, and autumn and winter sowing period.

[0041] In the embodiment of the present invention, Figure 11 As shown, it is a schematic diagram of a possible survey period selection control. The user can select the target survey period for which data reporting is required based on the survey period selection control, such as spring sowing, summer sowing, autumn and winter sowing, etc. The specific selectable survey period can be set according to actual conditions, and the present invention does not impose any restrictions on this.

[0042] In some possible embodiments of the present invention, the field survey system further includes a data export module, which is used to export the field survey data reporting results of the area to be surveyed.

[0043] In this embodiment of the present invention, the field survey system also provides a data export function. First, click the [Save] button to ensure that the data is saved. Then, click [Export Report Results] in the [Menu Bar] to export the reported data, including the survey progress of crop planting conditions in each sample village. The exported data can be stored locally or on a server.

[0044] In some possible embodiments of the present invention, the field survey system further includes a missed reporting reminder module, which is configured to remind unreported plots within the target survey area.

[0045] In an embodiment of the present invention, by clicking [Check Missing Plots] in the [Menu Bar], the unreported Class 100 and Class 800 plots can be re-screened and displayed, and a prompt box will pop up to display the number of remaining unreported plots.

[0046] In order to better understand the technical solution of the present invention, a specific embodiment is given for illustration. When entering the data reporting page, the software will filter out and display all "crops" (all reported secondary categories of crops and unreported crop type plots) and "facility agriculture land" (all reported facility agriculture land subcategories and unreported facility agriculture land type plots) by default, and other types of plots will not be displayed. Use the three major module functions of [Attribute Brush], [Menu Bar] and [Drawer Control] to survey and report all 100-category and 800-category plots to the secondary category to complete all survey and reporting work. After the survey and reporting work is completed, click [Missed Plot Check] in the [Menu Bar] to re-screen and display the unreported 100-category and 800-category plots, and a prompt box will pop up to show the remaining unreported plots. If the remaining unreported plots are greater than 0, continue the survey and reporting until the survey and reporting of all plots is completed. When all plots are surveyed and reported, click [Check Missing Plots] in the [Menu Bar] again, and a dialog box will pop up saying "The number of unreported plots is: 0", which means that all plots are surveyed and reported. After confirming that no plots are missing, click [Total area of ​​a certain type of plot] in the [Menu Bar] to view the area summary information of all land types. After confirming that there are no abnormalities in the area data, first click the [Save] button in the [Menu Bar] to ensure that the data is saved, and then click [Export Report Results] in the [Menu Bar] to export the reported data. The above steps can complete the data reporting of a sample village, and reselect a new survey village for the next data reporting. When all survey villages have been reported, the first-class measurement and reporting work of the county is completed.

[0047] like Figure 12 As shown, the present invention further provides a field investigation method, applicable to the field investigation system in any of the aforementioned embodiments, comprising: S1201, obtaining a task package to be investigated, which includes a task of selecting an investigation area and a task of filling in a report on the investigation area; S1202, receiving field survey data of a target survey area, and reporting the field survey data to a survey area reporting task for the target survey area, wherein the target survey area is determined according to a survey area selection task; S1203: When the field survey data does not meet the reporting requirements, a navigation path is planned from the location of the mobile terminal to the target survey area, and navigation is performed based on the navigation path.

[0048] The working principle of the field investigation method provided by the embodiment of the present invention is the same as that of the field investigation system in the aforementioned embodiment, and will not be described in detail here.

[0049] like Figure 13As shown, the present invention also provides a mobile terminal 1300. The mobile terminal 1300 includes a processor 1301, a memory 1302 and a display 1303. The mobile terminal 1300 is installed with the field survey system of any of the above embodiments for reporting field survey data. Figure 13 Only some of the components of the mobile terminal 1300 are shown, but it should be understood that implementation of all of the shown components is not a requirement, and more or fewer components may be implemented instead.

[0050] In some embodiments, the processor 1301 may be a central processing unit (CPU), a microprocessor, or other data processing chip, configured to execute program codes stored in the memory 1302 or process data, such as the field survey method of the present invention.

[0051] In some embodiments, the processor 1301 may also communicate with a server, process data through the server, and return data processing results, wherein the server may be a single server or a server group, and the server group may be centralized or distributed. In some embodiments, the processor 1301 may be connected to a cloud platform, which may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, multiple clouds, etc., or any combination thereof.

[0052] In some embodiments, the memory 1302 may be an internal storage unit of the mobile terminal 1300, such as a hard disk or memory of the mobile terminal 1300. In other embodiments, the memory 1302 may also be an external storage device of the mobile terminal 1300, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the mobile terminal 1300.

[0053] Furthermore, the memory 1302 may include both an internal storage unit of the mobile terminal 1300 and an external storage device. The memory 1302 is used to store application software installed in the mobile terminal 1300 and various data.

[0054] In some embodiments, display 1303 can be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. Display 1303 is used to display information about mobile terminal 1300 and to display a visual user interface. Components 1301-1303 of mobile terminal 1300 communicate with each other via a system bus.

[0055] In some embodiments, when the processor 1301 executes the field survey program in the memory 1302, the following steps may be implemented: Obtain the task package to be investigated, which includes the task of selecting the investigation area and the task of filling in the investigation area report; Receive field survey data from the target survey area; and report the field survey data to the survey area reporting task for the target survey area, which is determined by the survey area selection task; When the field survey data does not meet the reporting requirements, a navigation path from the location of the mobile terminal to the target survey area is planned, and navigation is performed based on the navigation path.

[0056] It should be understood that, when the processor 1301 executes the field survey program in the memory 1302 , in addition to the above functions, it can also implement other functions. For details, please refer to the description of the corresponding method embodiment above.

[0057] Furthermore, the embodiment of the present invention does not specifically limit the type of the mobile terminal 1300 mentioned. The mobile terminal 1300 may be a portable mobile terminal such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, or a laptop computer. Exemplary embodiments of portable mobile terminals include but are not limited to portable mobile terminals equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable mobile terminal may also be other portable mobile terminals, such as a laptop computer with a touch-sensitive surface (such as a touch panel). The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the scope of protection of the present invention.

Claims

1. A field survey system, suitable for mobile terminals, characterized in that: Including task package import module, data reporting module and navigation module; The task package import module is used to import the task package to be investigated, and the task package to be investigated includes the task of selecting the investigation area and the task of filling in the investigation area; The data reporting module is used to receive the field survey data of the target survey area and report the field survey data to the survey area reporting task of the target survey area; The target survey area is determined according to the survey area selection task; The navigation module is used to plan a navigation path from the location of the mobile terminal to the target survey area and perform navigation based on the navigation path when the field survey data does not meet the reporting requirements.

2. The field investigation system according to claim 1, characterized in that: The data filling module includes a survey area selection control; The survey area selection control is used to display selectable survey areas and the field survey data reporting progress of each selectable survey area, and is also used to receive a survey area selection operation and display the field survey data reporting page of the target survey area based on the survey area selection operation.

3. The field investigation system according to claim 2, characterized in that: The data reporting module includes a data receiving interface; The data receiving interface is used to receive a plot division vector diagram of the area to be surveyed and a remote sensing orthophoto image of the area to be surveyed; wherein the plot division vector diagram is used to divide the plots to be surveyed in the target survey area, and the remote sensing orthophoto image is used to display crop images of each plot to be surveyed; The field survey data reporting page is used to display the land parcel division vector diagram of the target survey area and the remote sensing orthophoto images corresponding to each of the land parcel division vector diagrams, wherein the remote sensing orthophoto images and the corresponding land parcel division vector diagrams are superimposed and displayed.

4. The field investigation system according to claim 3, characterized in that: The data reporting module includes a plurality of data reporting controls, and the plurality of data reporting controls are used to receive a user's field survey data reporting operation and display a field survey data reporting result on the field survey data reporting page based on the field data reporting operation.

5. The field investigation system according to claim 1, characterized in that: The field survey system also includes a field image acquisition module, which is used to collect and display field images of the target survey area when the field survey data does not meet the reporting requirements, wherein the field images include crop images of various plots in the target area to be surveyed.

6. The field investigation system according to claim 1, characterized in that: The data reporting module also includes a survey period selection control, which is used to select a target survey period for which field survey data needs to be conducted. The target survey period includes a spring sowing period, a summer sowing period, and an autumn and winter sowing period.

7. The field investigation system according to claim 1, characterized in that: The field survey system also includes a data export module, which is used to export the field survey data reporting results of the area to be surveyed. The field survey data reporting results are used to display the crop planting types, crop planting distribution and crop planting area statistics in each area to be surveyed.

8. The field investigation system according to claim 1, characterized in that: The field survey system further includes a missing report reminder module, which is used to remind unreported plots within the target survey area.

9. A field investigation method, applicable to the field investigation system according to any one of claims 1 to 8, characterized in that: include: Obtaining a task package to be investigated, wherein the task package to be investigated includes a task of selecting an investigation area and a task of filling in a report on the investigation area; receiving field survey data of a target survey area, and reporting the field survey data to a survey area reporting task for the target survey area, where the target survey area is determined according to the survey area selection task; When the field survey data does not meet the reporting requirements, a navigation path from the location of the mobile terminal to the target survey area is planned, and navigation is performed based on the navigation path.

10. A mobile terminal, characterized in that: comprising a memory and a processor, wherein, The memory stores the field investigation system according to any one of claims 1 to 8; The processor is coupled to the memory and is used to implement the field investigation method according to claim 9 based on the field investigation system.

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