Simulation teaching recommendation system based on cultivated land and basic farmland protection

Abstract

The invention discloses a simulation teaching recommendation system based on cultivated land and basic farmland protection, relates to the field of agricultural protection teaching, and discloses a protection simulation model construction module, a historical stage data acquisition module, a teaching adaptation scheme recommendation module, a teaching adaptation scheme demonstration module and a teaching scheme effective analysis module. A protection simulation model construction module, a historical stage data acquisition module and a teaching adaptation scheme recommendation module are arranged, a cultivated land and farmland protection simulation model is constructed, it is ensured that students can perform practice operation of cultivated land and basic farmland protection in a virtual environment, teaching interactivity and practicability are improved, and the teaching efficiency is improved. The method comprises the following steps of: performing deep analysis on a practice result of a student at each stage, customizing a protection simulation teaching demonstration model of the student according to a deep analysis result, generating a plurality of teaching improvement schemes suitable for the student by the protection simulation teaching demonstration model, and recommending the teaching improvement schemes in sequence according to the matching conditions of the teaching improvement schemes and the student.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural protection teaching, and more specifically, to a simulation teaching recommendation system based on cultivated land and basic farmland protection. Background Art

[0002] In the current teaching field of cultivated land and basic farmland protection, traditional teaching methods often focus on imparting theoretical knowledge, but lack opportunities for practical operation. Students often find it difficult to combine the theoretical knowledge they have learned with actual protection operations, resulting in poor teaching results and limited understanding and practical operation capabilities of cultivated land and basic farmland protection.

[0003] In order to make up for this deficiency, in recent years, with the rapid development of information technology, simulation teaching has gradually attracted attention as a new teaching method. Simulation teaching can not only improve students' practical ability but also enhance the interactivity and fun of teaching by constructing a virtual environment for students to practice. However, existing simulation teaching systems often have some problems, such as lack of pertinence, single teaching plan, and inability to dynamically adjust according to students' actual situation.

[0004] In view of the above problems, the present invention proposes a simulation teaching recommendation system based on the protection of cultivated land and basic farmland. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a simulation teaching recommendation system based on the protection of cultivated land and basic farmland.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A simulation teaching recommendation system based on cultivated land and basic farmland protection, including a protection simulation model construction module, a historical stage data acquisition module, a teaching adaptation plan recommendation module, a teaching adaptation plan demonstration module, and a teaching plan effective analysis module;

[0008] The protection simulation model construction module is used to construct a cultivated land farmland protection simulation model;

[0009] The historical stage data acquisition module is used to obtain the simulated ecological characteristics of various ecological indicators and the comprehensive protection evaluation value of the students after the students used the cultivated land protection simulation model for simulated protection in the previous stage;

[0010] The teaching adaptation plan recommendation module is used to obtain the target ecological characteristics of various ecological indicators of students at the current stage, construct a protected simulation teaching demonstration model based on the simulated ecological characteristics and target ecological characteristics of various ecological indicators, the protected simulation teaching demonstration model generates k teaching improvement plans, obtains the plan adaptation values of each teaching improvement plan, and sorts the numerical values of the plan adaptation values of all teaching improvement plans from small to large in sequence;

[0011] The teaching adaptation plan demonstration module controls the protected simulation teaching demonstration model to conduct simulation teaching demonstrations for students using the teaching improvement plan ranked first;

[0012] After the simulation teaching demonstration is completed by the teaching plan effectiveness analysis module, students use the cultivated land and farmland protection simulation model for simulation protection, and set the simulation protection duration to T limt , at the end of the simulation protection, obtain the simulated ecological characteristics of various ecological indicators, synchronously obtain the comprehensive protection evaluation value of the student, calculate the difference between the comprehensive protection evaluation value obtained by the student at the current stage and the comprehensive protection evaluation value obtained in the previous stage to obtain the comprehensive protection improvement value, and determine the effective teaching plan for the student based on the comparison result between the comprehensive protection improvement value and the comprehensive protection improvement threshold.

[0013] Furthermore, to obtain the plan adaptation values of each teaching improvement plan, specifically: obtain the improvement difficulty analysis value of each teaching improvement plan, obtain the teaching difficulty adaptation value of the student, and then obtain the plan adaptation values of each teaching improvement plan.

[0014] Furthermore, the plan adaptation value of the teaching improvement plan is obtained through the following steps: calculate the difference between the improvement difficulty analysis value of the teaching improvement plan and the teaching difficulty adaptation value of the student and take the absolute value to obtain the plan adaptation value of the teaching improvement plan.

[0015] Furthermore, the teaching difficulty adaptation value of the student is obtained through the following steps: obtain all effective teaching plans of the student before the current time of the system, obtain the improvement difficulty analysis values Pad of each effective teaching plan, where a = 1, 2,..., A, and a is the plan number of the effective teaching plan, set the improvement difficulty analysis coefficient to td, and use the formula to obtain the teaching difficulty adaptation value Bse of the student.

[0016] Furthermore, the improvement difficulty analysis value of the teaching improvement plan is obtained through the following steps: the teaching improvement plan conducts a simulated improvement on the protected simulation teaching demonstration model. During the simulated improvement process, collect all simulated improvement operation data, obtain the operation difficulty analysis model, extract the characteristics of the simulated improvement operation data to obtain the simulated improvement operation characteristics, and input the simulated improvement operation characteristics into the operation difficulty analysis model, and the operation difficulty analysis model outputs the improvement difficulty analysis value.

[0017] Furthermore, the simulated ecological characteristics of various ecological indicators are obtained through the following steps: obtaining the ecological evaluation values of various ecological indicators in the cultivated land protection simulation model, collecting the ecological data of various ecological indicators in the cultivated land protection simulation model, obtaining the ecological evaluation models corresponding to various ecological indicators, extracting the characteristics of the ecological data of various ecological indicators, and extracting the simulated ecological characteristics of various ecological indicators.

[0018] Furthermore, the comprehensive protection evaluation value of the student is obtained through the following steps: inputting the simulated ecological characteristics of various ecological indicators into the corresponding ecological evaluation models, outputting the ecological evaluation values of various ecological indicators, setting the upper ecological evaluation score and the lower ecological evaluation score. When the ecological evaluation value of an ecological indicator is greater than or equal to the upper ecological evaluation score, mark this ecological indicator as a qualified ecological indicator, and mark the total number of qualified ecological indicators as Spg. When the ecological evaluation value of an ecological indicator is less than or equal to the lower ecological evaluation score, mark this indicator as a discrepant ecological indicator, and mark the total number of discrepant ecological indicators as Ryg. When the ecological evaluation value of an ecological indicator is between the upper ecological evaluation score and the lower ecological evaluation score, mark this indicator as an ordinary ecological indicator, sum up and take the average of the ecological evaluation values of all ordinary ecological indicators to obtain the average ordinary ecological evaluation value Zed, and use the formula to obtain the comprehensive protection evaluation value Swk of the student.

[0019] Furthermore, based on the comparison result between the comprehensive protection improvement value and the comprehensive protection improvement threshold, determine the effective teaching plan for the student. Specifically: set the comprehensive protection improvement threshold. When the comprehensive protection improvement value is greater than or equal to the comprehensive protection improvement threshold, mark the teaching improvement plan of this simulated teaching demonstration as the effective teaching plan for the student. When the comprehensive protection improvement value is less than the comprehensive protection improvement threshold, use the next adjacent teaching improvement plan in the ranking to conduct simulated teaching demonstration for the student. After the simulated teaching demonstration, the student uses the cultivated land protection simulation model again for simulation protection, and re-obtains the comprehensive protection evaluation value and the comprehensive protection improvement value of the student, and then determines whether the teaching improvement plan is the effective teaching plan for the student.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Set up a protection simulation model construction module, a historical stage data acquisition module, and a teaching adaptation plan recommendation module. By constructing a cultivated land and basic farmland protection simulation model, ensure that students can carry out practical operations on cultivated land and basic farmland protection in a virtual environment, improve the interactivity and practicality of teaching, and conduct in-depth analysis on the practical results of students in each stage. Customize a protection simulation teaching demonstration model for students according to the in-depth analysis results. The protection simulation teaching demonstration model can generate multiple teaching improvement plans suitable for students, and recommend the teaching improvement plans in order according to the adaptation situation between the teaching improvement plans and students.

[0022] 2. Set up a teaching adaptation plan demonstration module and a teaching plan effectiveness analysis module. After students learn the simulation teaching demonstration, they can carry out simulation exercises, dynamically analyze students' teaching understanding of the teaching improvement plans, and continuously adjust the teaching improvement plans according to students' simulation feedback. This not only ensures that students can efficiently carry out simulation teaching on cultivated land and basic farmland protection, but also continuously optimizes and recommends teaching improvement plans suitable for students subsequently. Description of the Drawings

[0023] Figure 1 It is a system module diagram of a simulation teaching recommendation system based on cultivated land and basic farmland protection;

[0024] Figure 2 It is a decision flow chart for determining effective teaching plans for students;

[0025] Figure 3 It is an operation flow chart of a simulation teaching recommendation system based on cultivated land and basic farmland protection. Detailed Implementation Manner

[0026] Refer to Figures 1 - 3 , a simulation teaching recommendation system based on cultivated land and basic farmland protection, including a protection simulation model construction module, a historical stage data acquisition module, a teaching adaptation plan recommendation module, a teaching adaptation plan demonstration module, and a teaching plan effectiveness analysis module.

[0027] Protection simulation model construction module: Construct a cultivated land and basic farmland protection simulation model.

[0028] The construction process of the cultivated land and basic farmland protection simulation model is as follows: Collect basic data related to cultivated land and basic farmland, including soil type, topography, climate conditions, crop planting situation, current land use status, etc. Collect historical data on protection measures related to cultivated land and basic farmland, such as irrigation data, fertilization data, pest control data, etc. Select simulation software such as MATLAB Simulink. Create a cultivated land and basic farmland model in the simulation software. Add corresponding entities to the cultivated land and basic farmland model, such as crops, irrigation systems, fertilization equipment, etc. and set parameters to construct the cultivated land and basic farmland protection simulation model. The cultivated land and basic farmland protection simulation model provides an environment for students to conduct simulation protection. Students can protect and improve the cultivated land and basic farmland in the cultivated land and basic farmland protection simulation model through corresponding operations.

[0029] Historical stage data acquisition module: Obtain the simulation ecological characteristics of various ecological indicators and the comprehensive protection evaluation value of students after the students used the cultivated land and basic farmland protection simulation model for simulation protection in the previous stage (students' learning of cultivated land and basic farmland protection is usually divided into multiple stages, and each stage has different learning objectives).

[0030] Teaching adaptation plan recommendation module: Obtain the target ecological characteristics of various ecological indicators of students in the current stage (that is, the ecological characteristics of various ecological indicators that students are set to complete in the current stage). Based on the simulation ecological characteristics and target ecological characteristics of various ecological indicators, construct a protection simulation teaching demonstration model. The protection simulation teaching demonstration model generates k teaching improvement plans, obtains the improvement difficulty analysis value of each teaching improvement plan, obtains the teaching difficulty adaptation value of students, and then obtains the plan adaptation value of each teaching improvement plan. Arrange the numerical values of the plan adaptation values of all teaching improvement plans in ascending order.

[0031] Construct a protection simulation teaching demonstration model based on the simulation ecological characteristics and target ecological characteristics of various ecological indicators. Specifically: Select simulation software such as MATLAB / Simulink. Create a cultivated land and basic farmland model in the simulation software based on the simulation ecological characteristics of various ecological indicators and set corresponding parameters. Determine the improvement direction of the cultivated land and basic farmland model based on the target ecological characteristics of various ecological indicators to construct the protection simulation teaching demonstration model. The protection simulation teaching demonstration model can generate teaching improvement plans according to the improvement direction. The protection simulation teaching demonstration model can use the teaching improvement plans for simulation improvement or use the teaching improvement plans for simulation teaching demonstration of the cultivated land and basic farmland model.

[0032] The plan adaptation value of the teaching improvement plan is obtained through the following steps: Calculate the difference between the improvement difficulty analysis value of the teaching improvement plan and the teaching difficulty adaptation value of the student and take the absolute value to obtain the plan adaptation value of the teaching improvement plan.

[0033] The teaching difficulty adaptation value of a student is obtained through the following steps: Obtain all valid teaching plans of the student before the current time of the system, and obtain the improvement difficulty analysis value Pad of each valid teaching plan, where a = 1, 2,..., A, and a is the plan number of the valid teaching plan. Set the improvement difficulty analysis coefficient as td, where d = 1, 2,..., d, and t1 < t2 < t3 <... < td-1 < td. Set that each improvement difficulty analysis coefficient corresponds to a range of improvement difficulty analysis values, and the range of the improvement difficulty analysis value includes (0, Pa1], (Pa1, Pa2],..., (Pad-1, Pad]. When the improvement difficulty analysis value ∈ (0, Pa1], the device improvement difficulty analysis coefficient is t1, and use the formula to obtain the teaching difficulty adaptation value Bse of the student.

[0034] The improvement difficulty analysis value of the teaching improvement plan is obtained through the following steps: The teaching improvement plan performs simulated improvement on the protected simulation teaching demonstration model. During the simulated improvement process, collect all simulated improvement operation data, obtain the operation difficulty analysis model, extract features from the simulated improvement operation data, and extract the simulated improvement operation features. Input the simulated improvement operation features into the operation difficulty analysis model, and the operation difficulty analysis model outputs the improvement difficulty analysis value.

[0035] The construction method of the operation difficulty analysis model is as follows: Collect multiple simulated improvement operation features, construct a deep learning model, use the simulated improvement operation features as the training data of the deep learning model, and assign an improvement difficulty analysis value to each training data. The value range of the improvement difficulty analysis value is (1 - 4). The larger the value of the improvement difficulty analysis value, the greater the simulated improvement operation difficulty (that is, the greater the operation difficulty for the student), and the smaller the value of the improvement difficulty analysis value, the smaller the simulated improvement operation difficulty (that is, the smaller the operation difficulty for the student). Divide the training data into a training set, a validation set, and a test set according to the ratio of 3:1:1, and train the training set, the validation set, and the test set. After the training is completed, the operation difficulty analysis model is constructed.

[0036] Set up a protected simulation model construction module, a historical stage data acquisition module, and a teaching adaptation plan recommendation module. By constructing a cultivated land and farmland protection simulation model, ensure that students can perform practical operations on cultivated land and basic farmland protection in a virtual environment, improve the interactivity and practicality of teaching, and conduct in-depth analysis of the practical results of students in each stage. Customize the protected simulation teaching demonstration model for students according to the in-depth analysis results. The protected simulation teaching demonstration model can generate multiple teaching improvement plans suitable for students, and recommend the teaching improvement plans in order according to the adaptation situation between the teaching improvement plans and the students.

[0037] Teaching Adaptation Plan Demonstration Module: Protect the simulation teaching demonstration model and conduct simulation teaching demonstrations for students using the top-ranked teaching improvement plan.

[0038] Effective Analysis Module of Teaching Plan: After the simulation teaching demonstration, students use the cultivated land and farmland protection simulation model for simulation protection, and set the simulation protection duration to T limt (T limt is the specific value of the duration, and the specific size can be modified according to actual needs, indicating that students can conduct simulation protection for the simulation protection duration in the cultivated land and farmland protection simulation model. When the simulation protection duration T limt ends (i.e., stops the students from continuing to operate), at the end of the simulation protection, obtain the ecological evaluation values of various ecological indicators in the cultivated land and farmland protection simulation model (the types of ecological indicators in the cultivated land and farmland protection simulation model include soil quality indicators, crop growth indicators, irrigation and fertilization indicators, pest control indicators, etc.), collect the ecological data of various ecological indicators in the cultivated land and farmland protection simulation model, obtain the ecological evaluation models corresponding to various ecological indicators, extract the features of the ecological data of various ecological indicators, extract the simulation ecological features of various ecological indicators, synchronously obtain the comprehensive protection evaluation value of the students, calculate the difference between the comprehensive protection evaluation value obtained by the students at the current stage and the comprehensive protection evaluation value obtained in the previous stage to obtain the comprehensive protection improvement value, set the comprehensive protection improvement threshold (the comprehensive protection improvement threshold is a system preset value). When the comprehensive protection improvement value is greater than or equal to the comprehensive protection improvement threshold, mark the teaching improvement plan of this simulation teaching demonstration as an effective teaching plan for the students. When the comprehensive protection improvement value is less than the comprehensive protection improvement threshold, use the next adjacent teaching improvement plan in the ranking to conduct simulation teaching demonstrations for the students. After the simulation teaching demonstration, the students use the cultivated land and farmland protection simulation model for simulation protection again, and re-obtain the comprehensive protection evaluation value and comprehensive protection improvement value of the students, and then determine whether the teaching improvement plan is an effective teaching plan for the students (if it is not an effective teaching plan for the students, repeat the previous steps and continue to conduct simulation teaching demonstrations for the students with the next teaching improvement plan).

[0039] The comprehensive protection evaluation value of the student is obtained through the following steps: Input the simulated ecological characteristics of various ecological indicators into the corresponding ecological evaluation model, and output the ecological evaluation values of various ecological indicators. Set the upper ecological evaluation score and the lower ecological evaluation score (the upper ecological evaluation score is greater than the lower ecological evaluation score, and both the upper ecological evaluation score and the lower ecological evaluation score are system preset values). When the ecological evaluation value of an ecological indicator is greater than or equal to the upper ecological evaluation score, mark this ecological indicator as a qualified ecological indicator, and mark the total number of qualified ecological indicators as Spg. When the ecological evaluation value of an ecological indicator is less than or equal to the lower ecological evaluation score, mark this indicator as a discrepant ecological indicator, and mark the total number of discrepant ecological indicators as Ryg. When the ecological evaluation value of an ecological indicator is between the upper ecological evaluation score and the lower ecological evaluation score, mark this indicator as an ordinary ecological indicator. Sum up the ecological evaluation values of all ordinary ecological indicators and take the average to obtain the average ordinary ecological evaluation value Zed. Use the formula to obtain the comprehensive protection evaluation value Swk of the student.

[0040] Different ecological indicators correspond to different ecological evaluation models. Each ecological evaluation model is constructed based on a deep learning model. The difference between different ecological evaluation models lies in the different training data. In the specific implementation, taking the soil quality indicator as an example, the construction method of the ecological evaluation model for the soil quality indicator is disclosed: Collect the simulated ecological characteristics of multiple soil quality indicators, construct a deep learning model, and use the simulated ecological characteristics of the soil quality indicator as the training data of the deep learning model (if it is the ecological evaluation model for crop growth indicators, collect the simulated ecological characteristics of multiple crop growth indicators). Assign an ecological evaluation value to each training data. The value range of the ecological evaluation value is (0.1 - 1.9). The larger the value of the ecological evaluation value, the more the soil quality in the cultivated land protection simulation model meets the soil quality indicator. The smaller the value of the ecological evaluation value, the less the soil quality in the cultivated land protection simulation model meets the soil quality indicator (if it is the ecological evaluation model for crop growth indicators, the larger the value of the ecological evaluation value, the more the crop growth in the cultivated land protection simulation model meets the crop growth indicator. The smaller the value of the ecological evaluation value, the less the crop growth in the cultivated land protection simulation model meets the crop growth indicator). Divide the training data into a training set, a validation set, and a test set according to the ratio of 4:1:1, and train the training set, the validation set, and the test set. After the training is completed, construct the ecological evaluation model for the soil quality indicator.

[0041] Set up a teaching adaptation plan demonstration module and a teaching plan effectiveness analysis module, which can conduct simulation exercises after students learn the simulation teaching demonstration, dynamically analyze the students' understanding of the teaching improvement plan, and continuously adjust the teaching improvement plan according to the students' simulation feedback. This not only ensures that students can efficiently carry out the simulation teaching of cultivated land and basic farmland protection, but also continuously optimizes and recommends suitable teaching improvement plans for students in the future.

[0042] The above formulas are all dimensionless and take their numerical calculations. The formula is a formula obtained by collecting a large amount of data for software simulation to get the closest to the real situation. The preset parameters in the formula are set by those skilled in the art according to the actual situation.

[0043] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wired or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that the computer can access, or a data storage device such as a server or data center that contains one or more collections of available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0044] It should be understood that in various embodiments of the present application, the order numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0045] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0046] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0047] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0048] If the above functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0049] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A simulation teaching recommendation system based on cultivated land and basic farmland protection, characterized in that: It includes protection simulation model construction module, historical stage data acquisition module, teaching adaptation plan recommendation module, teaching adaptation plan demonstration module, and teaching plan effective analysis module; The protection simulation model construction module is used to construct a cultivated land farmland protection simulation model; The historical stage data acquisition module is used to obtain the simulated ecological characteristics of various ecological indicators and the comprehensive protection evaluation value of the students after the students used the cultivated land protection simulation model for simulated protection in the previous stage; The teaching adaptation scheme recommendation module is used to obtain the target ecological characteristics of various ecological indicators of students at the current stage, build a protection simulation teaching demonstration model based on the simulated ecological characteristics of various ecological indicators and the target ecological characteristics, generate k teaching improvement schemes based on the protection simulation teaching demonstration model, obtain the scheme adaptation value of each teaching improvement scheme, and sort the numerical values ​​of the scheme adaptation values ​​of all teaching improvement schemes from small to large; The teaching adaptation scheme demonstration module controls the protection simulation teaching demonstration model to use the first-ranked teaching improvement scheme to perform simulation teaching demonstration on students; After the simulation teaching demonstration of the teaching scheme effectiveness analysis module is completed, students use the cultivated land protection simulation model to perform simulation protection, and set the simulation protection time to T. limt At the end of the simulated protection, the simulated ecological characteristics of various ecological indicators are obtained, and the comprehensive protection evaluation value of the students is obtained synchronously. The difference between the comprehensive protection evaluation value obtained by the students in the current stage and the comprehensive protection evaluation value obtained in the previous stage is calculated to obtain the comprehensive protection improvement value. Based on the comparison result between the comprehensive protection improvement value and the comprehensive protection improvement threshold, the effective teaching plan for the students is determined.

2. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 1 is characterized in that: Obtain the scheme adaptation value of each teaching improvement scheme, specifically: obtain the improvement difficulty analysis value of each teaching improvement scheme, obtain the teaching difficulty adaptation value of the student, and then obtain the scheme adaptation value of each teaching improvement scheme.

3. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 2 is characterized in that: The scheme adaptation value of the teaching improvement scheme is obtained through the following steps: the improvement difficulty analysis value of the teaching improvement scheme is calculated and the teaching difficulty adaptation value of the student is taken as the difference, and the absolute value is taken to obtain the scheme adaptation value of the teaching improvement scheme.

4. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 2 is characterized in that: The teaching difficulty adaptation value of the student is obtained by the following steps: obtain all the effective teaching plans of the student before the current time of the system, obtain the improved difficulty analysis value Pad of each effective teaching plan, a=1, 2, …, A, a is the plan number of the effective teaching plan, set the improved difficulty analysis coefficient to td, and use the formula Get the student's teaching difficulty adaptation value Bse.

5. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 2 is characterized in that: The improvement difficulty analysis value of the teaching improvement plan is obtained through the following steps: the teaching improvement plan simulates and improves the protection simulation teaching demonstration model. During the simulation improvement process, all simulation improvement operation data are collected to obtain an operation difficulty analysis model. Feature extraction is performed on the simulation improvement operation data to extract simulation improvement operation features. The simulation improvement operation features are input into the operation difficulty analysis model. The operation difficulty analysis model outputs the improvement difficulty analysis value.

6. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 1 is characterized in that: The simulated ecological characteristics of various ecological indicators are obtained through the following steps: obtaining the ecological evaluation values ​​of various ecological indicators in the cultivated land and farmland protection simulation model, collecting ecological data of various ecological indicators in the cultivated land and farmland protection simulation model, obtaining the ecological evaluation models corresponding to various ecological indicators, performing feature extraction on the ecological data of various ecological indicators, and extracting the simulated ecological characteristics of various ecological indicators.

7. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 1 is characterized in that: The comprehensive protection evaluation value of students is obtained through the following steps: the simulated ecological characteristics of various ecological indicators are input into the corresponding ecological evaluation model, and the ecological evaluation values ​​of various ecological indicators are output. The upper and lower ecological evaluation scores are set. When the ecological evaluation value of an ecological indicator is greater than or equal to the upper ecological evaluation score, the ecological indicator is marked as a qualified ecological indicator, and the total number of qualified ecological indicators is marked as Spg. When the ecological evaluation value of an ecological indicator is less than or equal to the lower ecological evaluation score, the indicator is marked as a gap ecological indicator, and the total number of gap ecological indicators is marked as Ryg. When the ecological evaluation value of an ecological indicator is between the upper ecological evaluation score and the lower ecological evaluation score, the indicator is marked as an ordinary ecological indicator. The ecological evaluation values ​​of all ordinary ecological indicators are summed and averaged to obtain the ordinary ecological evaluation mean Zed. The formula is used Get the student's comprehensive protection evaluation value Swk.

8. The simulation teaching recommendation system based on cultivated land and basic farmland protection according to claim 1 is characterized in that: Based on the comparison result between the comprehensive protection improvement value and the comprehensive protection improvement threshold, the effective teaching plan for students is determined, specifically: a comprehensive protection improvement threshold is set, when the comprehensive protection improvement value is greater than or equal to the comprehensive protection improvement threshold, the teaching improvement plan of the simulated teaching demonstration is marked as an effective teaching plan for students, when the comprehensive protection improvement value is less than the comprehensive protection improvement threshold, the next teaching improvement plan in the adjacent order is used to conduct a simulated teaching demonstration for students, after the simulation teaching demonstration, students use the cultivated land protection simulation model again for simulated protection, and re-obtain the students' comprehensive protection evaluation value and comprehensive protection improvement value, and then determine whether the teaching improvement plan is an effective teaching plan for students.

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