A soil moisture dynamic monitoring system, method and monitoring device

Abstract

The present invention provides a soil moisture dynamic monitoring system, method and monitoring device, belonging to the technical field of soil monitoring, and specifically comprising: when it is determined based on the survival rate that the soil monitoring reliability of a monitoring area does not meet the requirement, the adjacent monitoring area of ​​the monitoring area is determined, the survival rate of the soil moisture detection device of the adjacent monitoring area in different monitoring time periods is obtained, and when it is determined that the estimated reliability coefficient of the water content of the monitoring area does not meet the requirement in combination with the correlation between the numerical simulation results of the water content of the adjacent monitoring area and the monitoring area, the setting density of the soil moisture detection device of the monitoring area is determined based on the estimated reliability coefficient of the water content of the monitoring area and the survival rate of the soil moisture detection device in different monitoring time periods, thereby ensuring the reliability of data monitoring.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil monitoring, and in particular relates to a soil moisture dynamic monitoring system, method and monitoring device. Background Art

[0002] There is a need to use soil moisture sensors for soil moisture detection and analysis in the field test pit immersion test. In order to realize the collection and analysis of soil moisture, the invention patent application CN202410365325.3 "A soil moisture detection device for wheat drought monitoring" adopts an underground structure to improve the stability of equipment operation and ensure the accuracy of collected data. However, it is not difficult to find the following technical problems through analysis:

[0003] In the on-site test pit immersion test, the maximum monitoring depth of the soil moisture sensor is more than 20m, the soil moisture content is relatively high, and the immersion period of the test pit immersion test is relatively long. When the soil layer fully exerts its collapsible properties, the collapsible amount in some loess areas is as high as 115mm. Therefore, the soil moisture sensor will face the environment of collapsible soil compression and continuous water erosion, which will lead to the general survival rate of the sensor and data quality, making it difficult to meet the accuracy of the soil moisture monitoring results.

[0004] In view of the above technical problems, the present invention provides a soil moisture dynamic monitoring system, method and monitoring device. Summary of the invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] In order to solve the above technical problems, the present invention provides a soil moisture dynamic monitoring method, which specifically includes:

[0007] S1 uses the test plan of the test pit immersion test to determine the monitoring area of ​​soil moisture, and determines the numerical simulation results of pressure data and water content in the monitoring area in different monitoring time periods based on soil type;

[0008] S2 is based on the monitoring depths of different monitoring areas, the pressure data in different monitoring time periods, and the numerical simulation results of the water content, and uses historical monitoring data to determine the survival rates of the soil moisture detection devices buried in different monitoring areas in different monitoring time periods. When it is determined based on the survival rates that the soil monitoring reliability of the monitoring area does not meet the requirements, proceed to the next step;

[0009] S3 determines the adjacent monitoring area of ​​the monitoring area, obtains the survival rate of the soil moisture detection device buried in the adjacent monitoring area in different monitoring time periods, and determines that the estimated reliability coefficient of the water content of the monitoring area does not meet the requirements in combination with the correlation between the adjacent monitoring area and the numerical simulation results of the water content of the monitoring area, and then proceeds to the next step;

[0010] S4 determines the installation density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices buried in different monitoring time periods.

[0011] A further technical solution is that the test plan for the test pit immersion test is determined according to a pre-established test plan.

[0012] A further technical solution is that the soil types include red soil, brown soil, loess, black soil, chestnut soil, desert soil, tidal soil, irrigated silt soil, paddy soil, wet soil, saline-alkali soil, rock soil and alpine soil.

[0013] A further technical solution is that the numerical simulation results of the pressure data and water content are determined based on the analysis results of a pre-constructed mathematical model of numerical simulation, specifically by using numerical simulation software to build the mathematical model and determining it using the reading results of the mathematical model.

[0014] A further technical solution is that the adjacent monitoring area is another monitoring area whose distance from the monitoring area is less than a preset distance.

[0015] A further technical solution is that the method for determining the setting density of the soil moisture detection device in the monitoring area is:

[0016] Determine the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods according to the survival rate of the soil moisture detection devices buried in different monitoring time periods, and determine the basic setting density of the soil moisture detection devices in the monitoring area according to the maximum value of the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods;

[0017] Determining a compensation coefficient for the basic setting density of the monitoring area based on the estimated reliability coefficient of the water content of the monitoring area;

[0018] The setting density of the soil moisture detection devices in the monitoring area is determined by multiplying the basic setting density of the soil moisture detection devices in the monitoring area by a compensation coefficient.

[0019] On the other hand, the present application provides a soil moisture dynamic monitoring system, which adopts the above-mentioned soil moisture dynamic monitoring method, specifically comprising:

[0020] Numerical simulation module, survival rate evaluation module, reliability coefficient evaluation module, setting density determination module;

[0021] The numerical simulation module is responsible for determining the monitoring area of ​​soil moisture using the test scheme of the test pit immersion test, and determining the numerical simulation results of pressure data and water content in the monitoring area in different monitoring time periods based on the soil type;

[0022] The survival rate evaluation module is responsible for determining the survival rate of soil moisture detection devices buried in different monitoring areas in different monitoring time periods based on the monitoring depths of different monitoring areas, pressure data in different monitoring time periods, and numerical simulation results of water content, using historical monitoring data, and determining whether the soil monitoring reliability of the monitoring area meets the requirements based on the survival rate;

[0023] The reliability coefficient evaluation module is responsible for determining the adjacent monitoring area of ​​the monitoring area, obtaining the survival rate of the soil moisture detection device buried in the adjacent monitoring area in different monitoring time periods, and determining whether the estimated reliability coefficient of the water content of the monitoring area meets the requirements in combination with the correlation between the numerical simulation results of the water content of the adjacent monitoring area and the monitoring area;

[0024] The setting density determination module is responsible for determining the setting density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices buried in different monitoring time periods.

[0025] On the other hand, the present application provides a soil moisture dynamic monitoring device, which is applied to the above-mentioned soil moisture dynamic monitoring method, specifically comprising:

[0026] The soil moisture sensor is mounted on a PVC tube, and the PVC tube and the soil moisture sensor are filled and sealed with epoxy resin glue, and the probe and wire of the soil moisture sensor are reserved.

[0027] The beneficial effects of the present invention are:

[0028] 1. In the present application, historical monitoring data is used to determine the survival rate of soil moisture detection devices buried in different monitoring areas during different monitoring time periods, thereby achieving accurate evaluation of the survival rate of soil moisture detection devices from multiple angles such as monitoring depth, pressure data and water content, and also laying the foundation for determining the setting density of differentiated soil moisture detection devices according to differences in survival rates, thereby improving the reliability of monitoring data.

[0029] 2. In the present application, the setting density of the soil moisture detection devices in the monitoring area is determined based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices buried in different monitoring time periods. This takes into account the difference in the reliability of estimating the water content in the adjacent monitoring area due to the deviation in the water content between the adjacent monitoring area and the monitoring area, and also takes into account the difference in survival rate. This realizes the evaluation of the setting density from multiple angles, and ensures the accuracy of the water content monitoring results while ensuring the monitoring cost.

[0030] 3. The present invention improves the pressure resistance and waterproofness of the sensor, and effectively improves the survival rate and data quality of the sensor.

[0031] Other features and advantages will be described in the following description, and partly become apparent from the description, or understood by practicing the invention. The purpose and other advantages of the invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0034] Figure 1 It is a flow chart of a soil moisture dynamic monitoring method;

[0035] Figure 2 is a flow chart of a method for determining a survival rate of a soil moisture detection device;

[0036] Figure 3 It is a flow chart to determine that the estimated reliability coefficient of the water content in the monitoring area does not meet the requirements;

[0037] Figure 4 It is a framework diagram of a soil moisture dynamic monitoring system. DETAILED DESCRIPTION

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0039] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0040] Example 1

[0041] To solve the above problems, according to one aspect of the present invention, Figure 1 According to one aspect of the present invention, a soil moisture dynamic monitoring method is provided, which specifically includes:

[0042] S1 uses the test plan of the test pit immersion test to determine the monitoring area of ​​soil moisture, and determines the numerical simulation results of pressure data and water content in the monitoring area in different monitoring time periods based on soil type;

[0043] Furthermore, the soil types include red soil, brown soil, loess, black soil, chestnut soil, desert soil, tidal soil, irrigated silt soil, paddy soil, wet soil, saline-alkali soil, rock soil and alpine soil.

[0044] Specifically, the numerical simulation results of the pressure data and water content are determined based on the analysis results of a pre-constructed mathematical model of numerical simulation, specifically by using numerical simulation software to build the mathematical model and determining it using the reading results of the mathematical model.

[0045] S2 is based on the monitoring depths of different monitoring areas, the pressure data in different monitoring time periods, and the numerical simulation results of the water content, and uses historical monitoring data to determine the survival rates of the soil moisture detection devices buried in different monitoring areas in different monitoring time periods. When it is determined based on the survival rates that the soil monitoring reliability of the monitoring area does not meet the requirements, proceed to the next step;

[0046] Furthermore, the test plan for the test pit immersion test is determined according to a pre-established test plan.

[0047] It should be noted that if Figure 2 As shown, the method for determining the survival rate of the soil moisture detection device is:

[0048] Based on the monitoring depth of the monitoring area, the pressure data in different monitoring time periods and the numerical simulation results of the water content, similar historical monitoring areas of the monitoring area and data similarity coefficients are determined based on the historical monitoring data;

[0049] Dividing the similar historical monitoring areas into different similar intervals based on data similarity coefficients of the different similar historical monitoring areas, and determining survival rate reference values ​​in different similar intervals based on average values ​​of the survival rates of soil moisture detection devices buried in different similar historical monitoring areas during specific monitoring time periods;

[0050] The basic weight values ​​of different similarity intervals are determined by the range of data similarity coefficients corresponding to different similarity intervals, and the survival rate of the soil moisture detection device buried in the monitoring area during a specific monitoring time period is determined using the basic weight values ​​of different similarity intervals and the survival rate reference value.

[0051] Furthermore, the similar historical monitoring area of ​​the monitoring area is a monitoring area whose data similarity coefficient is greater than a preset similarity coefficient.

[0052] It should be further explained that the survival rate of the soil moisture detection device buried in the monitoring area in a specific monitoring time period is determined by using the basic weight values ​​and survival rate reference values ​​of different similarity intervals, specifically including:

[0053] Determine the survival rate reference coefficients of different similar intervals based on the product of the basic weight values ​​of different similar intervals and the survival rate reference values;

[0054] The survival rate of the soil moisture detection device buried in the monitoring area during a specific monitoring period is determined by the sum of the survival rate reference coefficients of different similar intervals.

[0055] It should also be noted that the method for determining the survival rate of the soil moisture detection device is:

[0056] S11, based on the monitoring depth of the monitoring area, the pressure data in different monitoring time periods and the numerical simulation results of the water content, and based on the historical monitoring data, determining similar historical monitoring areas of the monitoring area and a data similarity coefficient;

[0057] S12: taking the average value of the survival rates of the soil moisture detection devices buried in the similar monitoring area in the specific monitoring time period as the benchmark survival rate, judging whether the deviations between the survival rates of the soil moisture detection devices buried in the similar monitoring area in the specific monitoring time period and the benchmark survival rate are both within a preset deviation range; if so, determining the survival rate of the soil moisture detection devices buried in the monitoring area in the specific monitoring time period using the benchmark survival rate; if not, proceeding to the next step;

[0058] S13: similar monitoring areas whose deviation from the baseline survival rate is not within the preset deviation range are taken as deviation monitoring areas, and it is determined whether the number ratio of the deviation monitoring areas is less than the preset number ratio. If so, proceed to the next step; if not, proceed to step S15;

[0059] S14: Based on the deviation between the deviation detection area and the benchmark survival rate and the data similarity coefficient of the deviation monitoring area, a preset mapping function model is used to determine the reference deviation of the benchmark survival rate, and whether the reference deviation meets the requirements is judged. If so, the benchmark survival rate is used to determine the survival rate of the soil moisture detection device buried in the monitoring area in a specific monitoring time period. If not, proceed to the next step;

[0060] S15 divides the similar historical monitoring area into different similar intervals based on the data similarity coefficients of the different similar historical monitoring areas, and determines the survival rate reference values ​​in different similar intervals based on the average values ​​of the survival rates of the soil moisture detection devices buried in the different similar historical monitoring areas during a specific monitoring period;

[0061] S16 determines the basic weight values ​​of different similarity intervals according to the range of data similarity coefficients corresponding to different similarity intervals, and determines the survival rate of the soil moisture detection device buried in the monitoring area during a specific monitoring time period using the basic weight values ​​of different similarity intervals and the survival rate reference value.

[0062] It is understandable that determining that the soil monitoring reliability in the monitoring area does not meet the requirements specifically includes:

[0063] The variation of the water content in different monitoring time periods and adjacent monitoring time periods is determined by numerical simulation results of the water content in different monitoring time periods, and is used as the water content variation value;

[0064] Based on the water content change value in different monitoring time periods and the survival rate of the soil moisture detection device, the reliability influence coefficient of different monitoring time periods is determined;

[0065] The soil monitoring reliability of the monitoring area is determined based on the weights of the reliability influence coefficients of different monitoring time periods, and a preset reliability threshold is used to determine whether the soil monitoring reliability of the monitoring area meets the requirements.

[0066] Further, when the soil monitoring reliability of the monitoring area is less than a preset reliability threshold, it is determined that the soil monitoring reliability of the monitoring area does not meet the requirement.

[0067] Specifically, the adjacent monitoring area is another monitoring area whose distance from the monitoring area is less than a preset distance.

[0068] In another embodiment, determining that the soil monitoring reliability of the monitoring area does not meet the requirement specifically includes:

[0069] S21 obtains the survival rate of the buried soil moisture detection device in different monitoring time periods, and determines whether there is a monitoring time period in which the survival rate does not meet the requirements. If so, proceed to the next step; if not, determine whether the soil monitoring reliability of the monitoring area meets the requirements;

[0070] S22: taking the monitoring time period in which the survival rate does not meet the requirement as the survival abnormal time period, and judging whether the number of the survival abnormal time periods is greater than the preset number of time periods, if so, determining that the soil monitoring reliability of the monitoring area does not meet the requirement, if not, proceeding to the next step;

[0071] S23 determines the variation of water content between different monitoring time periods and adjacent monitoring time periods through numerical simulation results of water content in different monitoring time periods, and uses it as a water content variation value, and uses the water content variation value to judge whether there is a variation time period in the monitoring time period, if yes, proceed to the next step, if no, proceed to step S26;

[0072] S24 determines whether the number of surviving abnormal time periods in the change time period meets the requirement, if so, proceeds to the next step, if not, determines that the soil monitoring reliability of the monitoring area does not meet the requirement;

[0073] S25: determining the average value of the survival rate in the variable time period by the survival rates in different variable time periods, and judging whether the average value of the survival rate in the variable time period meets the requirements; if so, proceeding to the next step; if not, determining that the soil monitoring reliability in the monitoring area does not meet the requirements;

[0074] S26 determines the reliability influence coefficients of different monitoring time periods based on the water content change values ​​in different monitoring time periods and the survival rate of the soil moisture detection device, and judges whether the number of monitoring time periods whose reliability influence coefficients do not meet the requirements meets the requirements, if so, proceeds to the next step, if not, determines that the soil monitoring reliability of the monitoring area does not meet the requirements;

[0075] S27 determines the soil monitoring reliability of the monitoring area based on the weights of the reliability influence coefficients of different monitoring time periods, and uses a preset reliability threshold to determine whether the soil monitoring reliability of the monitoring area meets the requirements.

[0076] S3 determines the adjacent monitoring area of ​​the monitoring area, obtains the survival rate of the soil moisture detection device buried in the adjacent monitoring area in different monitoring time periods, and determines that the estimated reliability coefficient of the water content of the monitoring area does not meet the requirements in combination with the correlation between the adjacent monitoring area and the numerical simulation results of the water content of the monitoring area, and then proceeds to the next step;

[0077] Further, such as Figure 3 As shown, it is determined that the estimated reliability coefficient of the water content in the monitoring area does not meet the requirements, specifically including:

[0078] The deviation of the numerical simulation results of the water content between the adjacent monitoring area and the monitoring area in different monitoring time periods is taken as the corresponding deviation, and the water content correlation coefficient of the adjacent monitoring area and the monitoring area is determined by using the average value of the corresponding deviation;

[0079] The accuracy of water content estimation in different monitoring time periods is determined by using the survival rate of soil moisture detection devices buried in adjacent monitoring areas in different monitoring time periods and the water content correlation coefficient;

[0080] The estimated reliability coefficient of the water content in the monitoring area is determined by using the average value of the water content estimation accuracy in different monitoring time periods, and combined with a preset coefficient threshold, it is determined whether the estimated reliability coefficient of the water content in the monitoring area meets the requirements.

[0081] Further, when the estimated reliability coefficient of the water content in the monitoring area is less than a preset coefficient threshold, it is determined that the estimated reliability coefficient of the water content in the monitoring area does not meet the requirement.

[0082] It can be understood that when the estimated reliability coefficient of the water content in the monitoring area meets the requirements, the setting density of the soil moisture detection device in the monitoring area is determined by using the preset setting density.

[0083] It should also be noted that the estimated reliability coefficient for determining the water content in the monitoring area does not meet the requirements, including:

[0084] S31 uses the survival rates of the adjacent monitoring areas in different monitoring time periods to determine the average survival rates in different monitoring time periods, and determines whether there is a monitoring time period in which the average survival rate does not meet the requirements. If so, proceed to step S34, if not, proceed to the next step;

[0085] S32 takes the deviation of the numerical simulation results of the water content of the adjacent monitoring area and the monitoring area in different monitoring time periods as the corresponding deviation, and uses the average value of the corresponding deviation to determine the water content correlation coefficient of the adjacent monitoring area and the monitoring area, and judges whether there is an adjacent monitoring area whose water content correlation coefficient is greater than the preset correlation coefficient. If so, it is determined that the estimated reliability coefficient of the water content of the monitoring area meets the requirements, if not, proceeds to the next step;

[0086] S33 determines whether there are adjacent monitoring areas with corresponding deviations within the preset deviation range in different monitoring time periods. If so, it is determined that the estimated reliability coefficient of the water content in the monitoring area meets the requirements. If not, proceed to the next step.

[0087] S34 determines the water content estimation accuracy of different monitoring time periods by using the survival rate of the soil moisture detection device buried in the adjacent monitoring area in different monitoring time periods and the water content correlation coefficient, and determines whether there is a monitoring time period in which the water content estimation accuracy does not meet the requirements. If not, it is determined that the estimation reliability coefficient of the water content in the monitoring area meets the requirements. If so, proceed to the next step;

[0088] S35 determines the estimated reliability coefficient of the water content in the monitoring area using the average value of the water content estimation accuracy in different monitoring time periods, and determines whether the estimated reliability coefficient of the water content in the monitoring area meets the requirements in combination with a preset coefficient threshold.

[0089] S4 determines the installation density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices buried in different monitoring time periods.

[0090] Specifically, the method for determining the setting density of the soil moisture detection devices in the monitoring area is:

[0091] Determine the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods according to the survival rate of the soil moisture detection devices buried in different monitoring time periods, and determine the basic setting density of the soil moisture detection devices in the monitoring area according to the maximum value of the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods;

[0092] Determining a compensation coefficient for the basic setting density of the monitoring area based on the estimated reliability coefficient of the water content of the monitoring area;

[0093] The setting density of the soil moisture detection devices in the monitoring area is determined by multiplying the basic setting density of the soil moisture detection devices in the monitoring area by a compensation coefficient.

[0094] Example 2

[0095] On the other hand, Figure 4 As shown, the present application provides a soil moisture dynamic monitoring system, which adopts the above-mentioned soil moisture dynamic monitoring method, specifically including:

[0096] Numerical simulation module, survival rate evaluation module, reliability coefficient evaluation module, setting density determination module;

[0097] The numerical simulation module is responsible for determining the monitoring area of ​​soil moisture using the test scheme of the test pit immersion test, and determining the numerical simulation results of pressure data and water content in the monitoring area in different monitoring time periods based on the soil type;

[0098] The survival rate evaluation module is responsible for determining the survival rate of soil moisture detection devices buried in different monitoring areas in different monitoring time periods based on the monitoring depths of different monitoring areas, pressure data in different monitoring time periods, and numerical simulation results of water content, using historical monitoring data, and determining whether the soil monitoring reliability of the monitoring area meets the requirements based on the survival rate;

[0099] The reliability coefficient evaluation module is responsible for determining the adjacent monitoring area of ​​the monitoring area, obtaining the survival rate of the soil moisture detection device buried in the adjacent monitoring area in different monitoring time periods, and determining whether the estimated reliability coefficient of the water content of the monitoring area meets the requirements in combination with the correlation between the numerical simulation results of the water content of the adjacent monitoring area and the monitoring area;

[0100] The setting density determination module is responsible for determining the setting density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices buried in different monitoring time periods.

[0101] Example 3

[0102] On the other hand, the present application provides a soil moisture dynamic monitoring device, which is applied to the above-mentioned soil moisture dynamic monitoring method, specifically comprising:

[0103] The soil moisture sensor is mounted on a PVC tube, and the PVC tube and the soil moisture sensor are filled and sealed with epoxy resin glue, and the probe and wire of the soil moisture sensor are reserved.

[0104] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0105] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0106] The above description is only one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of this specification.

Claims

1. A soil moisture dynamic monitoring method, characterized in that: Specifically include: The test plan of the test pit immersion test is used to determine the monitoring area of ​​soil moisture, and the pressure data and numerical simulation results of water content in the monitoring area at different monitoring time periods are determined based on the soil type; Based on the monitoring depths of different monitoring areas, the pressure data in different monitoring time periods, and the numerical simulation results of the water content, the survival rates of the soil moisture detection devices in different monitoring areas in different monitoring time periods are determined using historical monitoring data. When it is determined based on the survival rates that the soil monitoring reliability of the monitoring area does not meet the requirements, proceed to the next step; Determine the adjacent monitoring area of ​​the monitoring area, obtain the survival rate of the soil moisture detection device in the adjacent monitoring area in different monitoring time periods, and determine that the estimated reliability coefficient of the water content of the monitoring area does not meet the requirements based on the correlation between the adjacent monitoring area and the numerical simulation results of the water content of the monitoring area, and proceed to the next step; Determining the installation density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices in different monitoring time periods; The method for determining the survival rate of the soil moisture detection device is: Based on the monitoring depth of the monitoring area, the pressure data in different monitoring time periods and the numerical simulation results of the water content, similar historical monitoring areas of the monitoring area and data similarity coefficients are determined based on the historical monitoring data; Dividing the similar historical monitoring areas into different similar intervals based on data similarity coefficients of different similar historical monitoring areas, and determining survival rate reference values ​​in different similar intervals based on average values ​​of survival rates of soil moisture detection devices in different similar historical monitoring areas in specific monitoring time periods; Determine the basic weight values ​​of different similarity intervals by the range of data similarity coefficients corresponding to different similarity intervals, and determine the survival rate of the soil moisture detection device in the monitoring area in a specific monitoring time period by using the basic weight values ​​of different similarity intervals and the survival rate reference value; Determining that the soil monitoring reliability in the monitoring area does not meet the requirements, specifically including: The variation of the water content in different monitoring time periods and adjacent monitoring time periods is determined by numerical simulation results of the water content in different monitoring time periods, and is used as the water content variation value; Based on the water content change value in different monitoring time periods and the survival rate of the soil moisture detection device, the reliability influence coefficient of different monitoring time periods is determined; Determine the soil monitoring reliability of the monitoring area based on the weights of the reliability influence coefficients of different monitoring time periods, and determine whether the soil monitoring reliability of the monitoring area meets the requirements using a preset reliability threshold; It is determined that the estimated reliability coefficient of the water content in the monitoring area does not meet the requirements, specifically including: The deviation of the numerical simulation results of the water content between the adjacent monitoring area and the monitoring area in different monitoring time periods is taken as the corresponding deviation, and the water content correlation coefficient of the adjacent monitoring area and the monitoring area is determined by using the average value of the corresponding deviation; The water content estimation accuracy of different monitoring time periods is determined by using the survival rate of soil moisture detection devices buried in adjacent monitoring areas at different monitoring time periods and the water content correlation coefficient; Determine the estimated reliability coefficient of the water content in the monitoring area by using the average value of the water content estimation accuracy rate in different monitoring time periods, and determine whether the estimated reliability coefficient of the water content in the monitoring area meets the requirements in combination with a preset coefficient threshold; The method for determining the setting density of the soil moisture detection devices in the monitoring area is: Determine the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods according to the survival rate of the soil moisture detection devices buried in different monitoring time periods, and determine the basic setting density of the soil moisture detection devices in the monitoring area according to the maximum value of the corresponding preset setting density of the soil moisture detection devices in different monitoring time periods; Determining a compensation coefficient for the basic setting density of the monitoring area based on the estimated reliability coefficient of the water content of the monitoring area; Determining the setting density of the soil moisture detection devices in the monitoring area by multiplying the basic setting density of the soil moisture detection devices in the monitoring area by a compensation coefficient; The survival rate of the soil moisture detection device in the monitoring area in a specific monitoring time period is determined by using the basic weight values ​​of different similar intervals and the survival rate reference value, specifically including: Determine the survival rate reference coefficients of different similar intervals based on the product of the basic weight values ​​of different similar intervals and the survival rate reference values; The survival rate of the soil moisture detection device in the monitoring area in a specific monitoring time period is determined by the sum of the survival rate reference coefficients of different similar intervals.

2. The soil moisture dynamic monitoring method according to claim 1, characterized in that: The test plan for the test pit immersion test is determined according to a pre-established test plan.

3. The soil moisture dynamic monitoring method according to claim 1, characterized in that: The soil types include red soil, brown soil, loess, black soil, chestnut soil, desert soil, tidal soil, irrigated silt soil, paddy soil, wet soil, saline-alkali soil, rock soil and alpine soil.

4. The soil moisture dynamic monitoring method according to claim 1, characterized in that: The numerical simulation results of the pressure data and the water content are determined according to the analysis results of the pre-constructed mathematical model of the numerical simulation.

5. The soil moisture dynamic monitoring method according to claim 1, characterized in that: When the soil monitoring reliability of the monitoring area is less than a preset reliability threshold, it is determined that the soil monitoring reliability of the monitoring area does not meet the requirement.

6. A soil moisture dynamic monitoring system, using a soil moisture dynamic monitoring method according to any one of claims 1 to 5, characterized in that: Specifically include: Numerical simulation module, survival rate evaluation module, reliability coefficient evaluation module, setting density determination module; The numerical simulation module is responsible for determining the monitoring area of ​​soil moisture using the test scheme of the test pit immersion test, and determining the numerical simulation results of pressure data and water content in the monitoring area in different monitoring time periods based on the soil type; The survival rate evaluation module is responsible for determining the survival rate of soil moisture detection devices in different monitoring areas in different monitoring time periods based on the monitoring depths of different monitoring areas, pressure data in different monitoring time periods, and numerical simulation results of water content, using historical monitoring data, and determining whether the soil monitoring reliability of the monitoring area meets the requirements based on the survival rate; The reliability coefficient evaluation module is responsible for determining the adjacent monitoring area of ​​the monitoring area, obtaining the survival rate of the soil moisture detection device in the adjacent monitoring area in different monitoring time periods, and determining whether the estimated reliability coefficient of the water content of the monitoring area meets the requirements in combination with the correlation between the numerical simulation results of the water content of the adjacent monitoring area and the monitoring area; The setting density determination module is responsible for determining the setting density of the soil moisture detection devices in the monitoring area based on the estimated reliability coefficient of the water content in the monitoring area and the survival rate of the soil moisture detection devices in different monitoring time periods.

7. A soil moisture dynamic monitoring device, applied to a soil moisture dynamic monitoring method according to any one of claims 1 to 5, characterized in that: Specifically include: The soil moisture sensor is mounted on a PVC tube, and the PVC tube and the soil moisture sensor are filled and sealed with epoxy resin glue, and the probe and wire of the soil moisture sensor are reserved.

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