Selenium element monitoring, regulating and controlling system and method for wheat growth environment

Abstract

The invention discloses a selenium element monitoring, regulating and controlling system and method for a wheat growth environment, and relates to the technical field of selenium element monitoring, regulating and controlling. The selenium element monitoring, regulating and controlling system for the wheat growth environment comprises a selenium element data acquisition module; a selenium element data processing module; an environment regulation and control module; and a system management module. According to the method, the selenium element influence index is obtained by obtaining the selenium element data of the to-be-detected wheat plant in the growth environment area and the growth environment data of the preset monitoring point, and meanwhile whether the selenium element data is within the growth index range of the to-be-detected wheat plant or not is evaluated; then obtaining an environment factor interference value and judging whether to execute an environment regulation and control measure, and finally monitoring the actual operation state of the system in real time to obtain an operation evaluation index and carry out optimization adjustment, so as to improve the evaluation accuracy of the wheat selenium element absorption efficiency in the monitoring regulation and control process. The problem that in the prior art, the wheat selenium absorption efficiency evaluation accuracy is low in the monitoring and regulating process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of selenium monitoring and control, and in particular to a selenium monitoring and control system and method for a wheat growth environment. Background Art

[0002] With the rapid development of modern agricultural technology and the growing demand for healthy food, wheat, as one of the important food crops, has attracted much attention for its nutritional value and quality. Selenium, as a trace element that is essential to human health, has multiple biological functions such as anti-oxidation and immunity enhancement. Selenium deficiency is positively correlated with the occurrence of many diseases, such as Keshan disease, muscular dystrophy, esophageal cancer, etc. However, traditional methods make it difficult to accurately monitor the selenium content and its changes in the wheat growth environment, resulting in the inability to accurately assess the impact of selenium on wheat growth. Therefore, in the process of wheat cultivation, it is of great significance to reasonably monitor and regulate the content of selenium to improve the quality and nutritional value of wheat.

[0003] Existing technology uses sensors installed in wheat fields to monitor the growth data of wheat plants in real time, and analyzes and processes the growth data according to preset algorithms and models to obtain selenium content information. At the same time, the growth environment of the wheat plants is evaluated based on the obtained selenium content information and corresponding measures are taken, thereby improving the accuracy of monitoring and regulating the selenium content in wheat.

[0004] For example, the invention patent announcement number is CN114414645B. It discloses a bacteria / cell growth monitoring device and a monitoring method thereof, comprising: measuring 0.5-3 ml of bacterial solution with a pipette and adding it to the culture chamber of the working electrode of the monitoring device; then placing the monitoring device in a 30-37°C constant temperature box, connecting it to an electrochemical workstation via a lead wire for testing; setting the electrochemical workstation parameters, the AC voltage is 0.01V-1V, the monitoring frequency range is 0.001Hz-100KHz, and the AC impedance is obtained after standing for 30-300s; comparing the obtained AC impedance value with the AC impedance spectrum of the same bacteria tested under the same conditions, so as to judge the bacterial growth status.

[0005] For example, the method for setting up a plant growth environment and the plant growth monitoring device disclosed in the invention patent announcement with announcement number: CN113406075B include: receiving plant growth environment parameters corresponding to a plurality of preset time points; inputting the plant growth environment parameters into a plant growth model corresponding to the growth stage to obtain plant growth information; inputting the plant growth information into a plant growth rating model corresponding to the growth stage to obtain a comprehensive score of the plant growth status; and determining the optimal growth environment parameters for the plant growth stage according to the comprehensive score of the plant growth status.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the prior art, the selenium content in the wheat growing environment is affected by climatic conditions, resulting in certain limitations in the algorithms and models used to analyze and process wheat growth data. The selenium absorption mechanism during wheat growth cannot be fully simulated, and there is a problem of low accuracy in evaluating the selenium absorption efficiency of wheat during the monitoring and control process. Summary of the invention

[0008] The embodiment of the present application solves the problem of low accuracy in assessing the selenium absorption efficiency of wheat during the monitoring and regulation process in the prior art by providing a selenium monitoring and control system and method for the wheat growth environment, thereby improving the accuracy in assessing the selenium absorption efficiency of wheat during the monitoring and regulation process.

[0009] The embodiment of the present application provides a selenium monitoring and control system for a wheat growth environment, comprising: a selenium data acquisition module, a selenium data processing module, an environment control module and a system management module; wherein the selenium data acquisition module is used to acquire the selenium data of a wheat plant to be tested in a growth environment area and the growth environment data of a preset monitoring point, and acquire a selenium influence index according to the change of the growth environment data within a preset time period, and the selenium influence index is used to reflect the degree of influence of the growth environment of the preset monitoring point on the selenium absorption efficiency of the wheat plant to be tested; the selenium data processing module is used to evaluate whether the selenium data is within the growth index range of the wheat plant to be tested according to the acquired selenium influence index, and if not, generate a selenium influence index according to the evaluation result. Corresponding control instructions; the environmental control module is used to evaluate the growth environment factors to obtain the environmental factor interference value, and at the same time, judge whether to execute the environmental control measures corresponding to the control instructions according to the obtained environmental factor interference value and the environmental factor reference value, the growth environment factors are used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption, and the environmental factor interference value is used to evaluate the interference degree of the growth environment factors of the preset monitoring points on the sufficiency of selenium absorption by the wheat plant to be tested; the system management module is used to monitor the actual operation status of the system in real time to obtain the operation evaluation index, and at the same time, optimize and adjust the system according to the obtained operation evaluation index, and the operation evaluation index is used to evaluate the stability of the system during operation.

[0010] Furthermore, the specific limiting expression of the selenium influence index is:

[0011]

[0012] Where i is the number of the preset time period, i = 1, 2, ..., U, U is the total number of preset time periods, e is a natural constant, XI represents the selenium influence index of the wheat plants to be tested in the growth environment area in the preset time period, P i It represents the influence index of selenium content of the tested wheat plants in the growth environment area during the i-th preset time period, Q i A represents the influence index of selenium concentration of the tested wheat plants in the growth environment area during the i-th preset time period, i represents the amount of selenium added to the wheat plant to be tested in the growth environment area during the i-th preset time period, A0 represents the reference amount of selenium added, P1 i represents the air temperature at the preset monitoring point in the growth environment area during the i-th preset time period, K10 represents the reference air temperature at the preset monitoring point, P2 i represents the air humidity at the preset monitoring point in the growth environment area during the i-th preset time period, K20 represents the reference air humidity at the preset monitoring point, Q1 i represents the light intensity at the preset monitoring point in the growth environment area during the i-th preset time period, L10 represents the reference light intensity at the preset monitoring point, Q2 i It represents the carbon dioxide concentration at the preset monitoring point in the growth environment area during the i-th preset time period, and L20 represents the reference carbon dioxide concentration at the preset monitoring point.

[0013] Furthermore, the specific steps of evaluating whether the selenium element data is within the growth index range of the wheat plant to be tested according to the obtained selenium element influence index include: step one, judging whether the obtained selenium element influence index is within the growth index range of the wheat plant to be tested, if so, it indicates that the growth environment data meets the conditions for the wheat plant to be tested to absorb selenium, otherwise, executing step two; step two, judging whether the selenium element content influence index is within the selenium element content index range of the wheat plant to be tested, if so, executing step three, otherwise adjusting the content influence parameters, the content influence parameters include the selenium element addition amount of the wheat plant to be tested, the air temperature and air humidity at the preset monitoring point; step three, judging whether the selenium element concentration influence index is within the selenium element concentration index range of the wheat plant to be tested, if so, storing the obtained selenium element influence index in a database, otherwise adjusting the concentration influence parameters, the concentration influence parameters include the selenium element addition amount of the wheat plant to be tested, the light intensity and carbon dioxide concentration at the preset monitoring point.

[0014] Furthermore, the step of obtaining the interference value of the environmental factor is: measuring the soil pH value of the root soil of the wheat plant to be tested in real time through a soil pH tester, and obtaining a soil pH score in combination with the corresponding reference soil pH value, wherein the soil pH score is the ratio of the difference between the soil pH value and the reference soil pH value to the reference soil pH value, and the reference soil pH value is the pH value of neutral soil; measuring the working electrode and the reference electrode of the root soil of the wheat plant to be tested in real time through a potentiometer to obtain a redox potential score, wherein the working electrode is the soil redox potential of the root soil of the wheat plant to be tested during the measurement of the potentiometer, and the reference electrode is the initial soil redox potential of the root soil of the wheat plant to be tested before the measurement of the potentiometer, and the redox potential score is the difference between the soil redox potential and the initial soil redox potential. The ratio of the soil competitive ion components of the root soil of the wheat plant to be tested is measured in real time by an ion chromatograph to obtain the calcium ion content, the magnesium ion content and the sodium ion content, and the soil competitive ion score is obtained in combination with the corresponding reference value, and the soil competitive ion score is used to reflect the proportion of the soil competitive ion content in the soil element content, and the soil element content includes selenium content, calcium ion content, magnesium ion content and sodium ion content; the obtained soil pH score, the redox potential score and the soil competitive ion score are added to obtain the environmental factor interference value, and the position of the root of the wheat plant to be tested measured in real time by the soil pH tester, the potential meter and the ion chromatograph in the same time period is the same.

[0015] Furthermore, the specific process of judging whether to execute the environmental control measures corresponding to the control instructions according to the obtained environmental factor interference value and the environmental factor reference value is as follows: judging whether the obtained environmental factor interference value is less than the environmental factor reference value: if the obtained environmental factor interference value is less than the environmental factor reference value, it indicates that the wheat plant to be tested fully absorbs the selenium element at the preset monitoring point and stores the obtained environmental factor interference value in the system management module; if the obtained environmental factor interference value is greater than or equal to the environmental factor reference value, the environmental control measures corresponding to the control instructions are executed and the growth environment factors are re-evaluated.

[0016] The embodiment of the present application provides a method for monitoring and controlling the selenium element in a wheat growth environment, comprising the following steps: S1, obtaining selenium element data of a wheat plant to be tested in a growth environment area and growth environment data of a preset monitoring point, and obtaining a selenium element influence index according to changes in the growth environment data within a preset time period, wherein the selenium element influence index is used to reflect the degree of influence of the growth environment of the preset monitoring point on the selenium element absorption efficiency of the wheat plant to be tested; S2, evaluating whether the selenium element data is within the growth index range of the wheat plant to be tested according to the acquired selenium element influence index, and if not, generating corresponding control instructions according to the evaluation result; S3, performing an evaluation on the growth environment factors; Perform an evaluation to obtain an environmental factor interference value, and at the same time determine whether to execute the environmental control measures corresponding to the control instructions based on the obtained environmental factor interference value and the environmental factor reference value, the growth environment factor is used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption, and the environmental factor interference value is used to evaluate the interference degree of the growth environment factor of the preset monitoring point on the sufficiency of selenium absorption by the wheat plant to be tested; S4, real-time monitoring of the actual operating status of the system to obtain an operating evaluation index, and at the same time optimizing and adjusting the system based on the obtained operating evaluation index, and the operating evaluation index is used to evaluate the stability of the system during operation.

[0017] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0018] 1. The selenium influence index is obtained to evaluate whether the selenium data is within the growth index range of the wheat plant to be tested, and then the environmental factor interference value is obtained to determine whether to implement environmental control measures. Finally, the actual operating status of the system is monitored in real time to obtain the operating evaluation index and perform optimization adjustments, thereby achieving an improvement in the accuracy of obtaining the environmental factor interference value, and then achieving an improvement in the accuracy of the evaluation of the selenium absorption efficiency of wheat during the monitoring and control process, effectively solving the problem of low accuracy in the evaluation of the selenium absorption efficiency of wheat during the monitoring and control process in the prior art.

[0019] 2. By judging whether the selenium content influence index is within the selenium content index range of the wheat plants to be tested, if not, the content influence parameter is adjusted. Finally, by judging whether the selenium concentration influence index is within the selenium concentration index range of the wheat plants to be tested, if not, the concentration influence parameter is adjusted, thereby achieving a more accurate judgment of the selenium content and selenium concentration, and thus achieving an improvement in the accuracy of the growth environment data assessment.

[0020] 3. By judging whether the obtained environmental factor interference value is less than the environmental factor reference value, if the obtained environmental factor interference value is less than the environmental factor reference value, it indicates that the wheat plant to be tested fully absorbs selenium at the preset monitoring point and stores the obtained environmental factor interference value in the system management module; if the obtained environmental factor interference value is greater than or equal to the environmental factor reference value, the environmental control measures corresponding to the control instructions are executed and the growth environment factors are re-evaluated, thereby improving the accuracy of obtaining the environmental factor interference value, and then achieving more accurate judgment of environmental control measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a selenium monitoring and control system for wheat growth environment provided in an embodiment of the present application;

[0022] Figure 2 A two-dimensional analysis diagram of the selenium content influence index provided in the embodiment of the present application;

[0023] Figure 3 A two-dimensional analysis diagram of the selenium concentration influence index provided in the embodiment of the present application;

[0024] Figure 4 A flow chart of a method for monitoring and regulating selenium in a wheat growth environment provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The embodiment of the present application solves the problem of low accuracy in evaluating the selenium absorption efficiency of wheat during the monitoring and regulation process in the prior art by providing a selenium monitoring and control system and method for a wheat growth environment. The selenium data of a wheat plant to be tested in a growth environment area and the growth environment data of a preset monitoring point are acquired through a selenium data acquisition module, and a selenium influence index is acquired according to changes in the growth environment data within a preset time period. Then, a selenium data processing module is used to evaluate whether the selenium data is within the growth index range of the wheat plant to be tested according to the acquired selenium influence index. If not, a corresponding control instruction is generated according to the evaluation result. Then, the growth environment factor is evaluated through the environmental control module to obtain an environmental factor interference value. At the same time, it is determined whether to execute the environmental control measures corresponding to the control instruction according to the acquired environmental factor interference value and the environmental factor reference value. Finally, the actual operation status of the system is monitored in real time through the system management module to obtain an operation evaluation index. At the same time, the system is optimized and adjusted according to the acquired operation evaluation index, thereby improving the accuracy of evaluating the selenium absorption efficiency of wheat during the monitoring and regulation process.

[0026] The technical solution in the embodiment of the present application is to solve the problem of low accuracy in evaluating the selenium absorption efficiency of wheat during the above-mentioned monitoring and regulation process. The overall idea is as follows:

[0027] The selenium influence index is obtained to evaluate whether the selenium data is within the growth index range of the wheat plants to be tested, and then the interference value of the environmental factor is obtained to determine whether to implement environmental control measures. Finally, the actual operating status of the system is monitored in real time to obtain operation evaluation indicators and make optimization adjustments, thereby achieving the effect of improving the accuracy of the evaluation of wheat selenium absorption efficiency during the monitoring and control process.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1 As shown, it is a structural schematic diagram of a selenium monitoring and control system for a wheat growth environment provided in an embodiment of the present application. A selenium monitoring and control system for a wheat growth environment provided in an embodiment of the present application includes: a selenium data acquisition module, a selenium data processing module, an environment control module and a system management module; wherein the selenium data acquisition module is used to acquire the selenium data of the wheat plant to be tested in the growth environment area and the growth environment data of the preset monitoring point, and acquire the selenium influence index according to the change of the growth environment data within a preset time period, and the selenium influence index is used to reflect the influence of the growth environment of the preset monitoring point on the efficiency of selenium absorption by the wheat plant to be tested; the selenium data processing module is used to evaluate whether the selenium data is within the growth index range of the wheat plant to be tested according to the acquired selenium influence index, and if not, generate corresponding control instructions according to the evaluation result, and the growth index range includes the selenium content index range and the selenium concentration index range. The control instruction is the increase or decrease of environmental control; the environmental control module is used to evaluate the growth environment factors to obtain the environmental factor interference value, and at the same time, judge whether to execute the environmental control measures corresponding to the control instruction according to the obtained environmental factor interference value and the environmental factor reference value. The growth environment factors are used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption. The environmental factor interference value is used to evaluate the interference degree of the growth environment factors of the preset monitoring points on the sufficiency of selenium absorption by the wheat plant to be tested. The environmental scheduling instructions include adjusting the amount of selenium added in the irrigation water and adjusting the growth environment factors; the system management module is used to monitor the actual operation status of the system in real time to obtain the operation evaluation index, and at the same time, optimize and adjust the system according to the obtained operation evaluation index. The actual operation status includes the accuracy of data acquisition, the speed of data processing and the execution efficiency of environmental control. The operation evaluation index is used to evaluate the stability of the system during operation.

[0030] In this embodiment, since the monitoring point needs to represent the growth conditions of the wheat plant to be tested, when evaluating the influence of soil data and irrigation water volume on the sufficiency of selenium absorption, the preset monitoring point should be the root system of the wheat plant to be tested, and when evaluating the influence of light intensity, air temperature, air humidity and carbon dioxide concentration on the sufficiency of selenium absorption, the preset monitoring point should be the canopy of the wheat plant to be tested; the selenium data include selenium content and selenium concentration, and the growth environment data include the amount of selenium added in irrigation water, light intensity, air temperature, air humidity and carbon dioxide concentration, wherein the selenium content is measured by atomic absorption spectroscopy, which is usually the total selenium content in irrigation water, soil and the wheat plant to be tested. content; selenium concentration is the ratio of selenium content to the total mass of selenium; the amount of selenium added is the amount of selenium artificially added to the irrigation water, usually obtained by multiplying the difference between the selenium concentration after addition and the selenium concentration before irrigation by the volume of irrigation water; light intensity is measured by photosynthetically active radiometers (light radiation that senses light radiation intensity and converts into electrical signals) deployed at preset monitoring points in the growth environment area; air temperature is measured by semiconductor temperature sensors deployed at preset monitoring points in the growth environment area; air humidity is measured by hot and wet bulb hygrometers deployed at preset monitoring points in the growth environment area; carbon dioxide concentration is measured by infrared gas analyzers deployed at preset monitoring points in the growth environment area.

[0031] Furthermore, the specific limiting expression of the selenium influence index is:

[0032]

[0033] Where i is the number of the preset time period, i = 1, 2, ..., U, U is the total number of preset time periods, e is a natural constant, XI represents the selenium influence index of the wheat plants to be tested in the growth environment area in the preset time period, P i It represents the influence index of selenium content of the tested wheat plants in the growth environment area during the i-th preset time period, Q i A represents the influence index of selenium concentration of the tested wheat plants in the growth environment area during the i-th preset time period, i represents the amount of selenium added to the wheat plant to be tested in the growth environment area during the i-th preset time period, A0 represents the reference amount of selenium added, P1 i represents the air temperature at the preset monitoring point in the growth environment area during the i-th preset time period, K10 represents the reference air temperature at the preset monitoring point, P2 i represents the air humidity at the preset monitoring point in the growth environment area during the i-th preset time period, K20 represents the reference air humidity at the preset monitoring point, Q1 irepresents the light intensity at the preset monitoring point in the growth environment area during the i-th preset time period, L10 represents the reference light intensity at the preset monitoring point, Q2 i It represents the carbon dioxide concentration at the preset monitoring point in the growth environment area during the i-th preset time period, and L20 represents the reference carbon dioxide concentration at the preset monitoring point.

[0034] In this embodiment, the preset monitoring point in the calculation formula of the selenium influence index is the canopy position of the wheat plant to be tested, the selenium content influence index is used to reflect the degree to which the selenium content in the wheat plant to be tested is affected by the growth environment data, the selenium concentration influence index is used to reflect the degree to which the selenium concentration in the wheat plant to be tested is affected by the growth environment data, the reference selenium addition amount is represented by the result of summing and averaging the historical selenium addition amounts of ten wheat plants at noon in the preset database, the reference air temperature is represented by the result of summing and averaging the historical air temperatures of the wheat plant monitoring points at noon in the preset database, the reference air humidity is represented by the result of summing and averaging the historical air humidity of the wheat plant monitoring points at noon in the preset database, the reference light intensity is represented by the result of summing and averaging the historical light intensities of the ten wheat plant monitoring points at noon in the preset database, and the reference carbon dioxide concentration is represented by the result of summing and averaging the historical carbon dioxide concentrations of the wheat plant monitoring points at noon in the preset database.

[0035] Specifically, when A i =A0,P1 i =K10 and P2 i =K20, the amount of selenium added, air temperature and air humidity have no effect on the efficiency of selenium absorption by the tested wheat plants (the influence index of selenium content is equal to 1 at this time). Figure 2 As shown, it is a two-dimensional analysis diagram of the selenium content influence index provided in the embodiment of the present application. The selenium content influence index increases with the increase of the selenium content influence index; when A i =A0,Q1 i = L10 and Q2 i = L20, the amount of selenium added, light intensity and carbon dioxide concentration have no effect on the efficiency of selenium absorption by the tested wheat plants (the influence index of selenium concentration is equal to 1 at this time). Figure 3 As shown, it is a two-dimensional analysis diagram of the selenium concentration influence index provided in the embodiment of the present application.

[0036] It should be understood that the selenium content impact index also indirectly affects the value of the selenium concentration impact index. As the selenium content impact index gradually increases, the selenium content in the wheat plant increases, which usually means that the plant's roots and leaves are also increasing their ability to absorb, transport and accumulate selenium. At this time, due to the improvement in the plant's absorption capacity, the selenium concentration impact index will also increase accordingly, reflecting that the concentration of selenium in the plant is also rising. By simultaneously considering the changing trends of the selenium content impact index and the selenium concentration impact index, the selenium absorption efficiency of the wheat plant can be more accurately evaluated, thereby achieving an improvement in the accuracy of the evaluation of the wheat selenium absorption efficiency during the monitoring and regulation process, and effectively solving the problem of low accuracy in the evaluation of the wheat selenium absorption efficiency during the monitoring and regulation process in the prior art.

[0037] Furthermore, the specific steps of evaluating whether the selenium data is within the growth index range of the wheat plant to be tested according to the obtained selenium influence index include: step one, judging whether the obtained selenium influence index is within the growth index range of the wheat plant to be tested, if so, it indicates that the growth environment data meets the conditions for the wheat plant to be tested to absorb selenium, otherwise, executing step two; step two, judging whether the selenium content influence index is within the selenium content index range of the wheat plant to be tested, if so, executing step three, otherwise adjusting the content influence parameters, the content influence parameters include the selenium addition amount of the wheat plant to be tested, the air temperature and air humidity at the preset monitoring point; step three, judging whether the selenium concentration influence index is within the selenium concentration index range of the wheat plant to be tested, if so, storing the obtained selenium influence index in a database, otherwise adjusting the concentration influence parameters, the concentration influence parameters include the selenium addition amount of the wheat plant to be tested, the light intensity and the carbon dioxide concentration at the preset monitoring point.

[0038] In this embodiment, soil data includes soil pH, soil redox potential and soil competitive ion content. Soil pH affects the absorption effectiveness of selenium by the wheat plants to be tested in alkaline soil. Soil redox potential affects the absorption effectiveness of selenium by the wheat plants to be tested in the redox state of alkaline soil. Soil competitive ion content includes calcium ion content, magnesium ion content and sodium ion content. The selenium content index range is the range corresponding to the maximum and minimum values ​​of the historical selenium content influence index of wheat plants in the preset database. The selenium concentration index range is the range corresponding to the maximum and minimum values ​​of the historical selenium concentration influence index of wheat plants in the preset database.

[0039] Specifically, if the selenium content impact index is greater than the maximum value of the historical selenium content impact index, it is necessary to reduce the amount of selenium added or lower the air temperature and humidity to slow down the wheat plants' absorption of selenium. For example, the air temperature and humidity can be lowered by reducing the amount of spray water in the growth environment area. Conversely, if the selenium content impact index is less than the minimum value of the historical selenium content impact index, it is necessary to increase the amount of selenium added or increase the air temperature and humidity to promote the wheat plants' absorption of selenium.

[0040] If the selenium concentration impact index is greater than the maximum value of the historical selenium concentration impact index, it is necessary to reduce the amount of selenium added or reduce the light intensity and carbon dioxide concentration to slow down the accumulation rate of selenium in wheat plants. For example, reducing light intensity can reduce the photosynthesis rate, thereby reducing the accumulation of selenium in wheat plants. In the application scenario of greenhouses, the ventilation frequency of greenhouses can be increased to reduce carbon dioxide concentration. Conversely, if the selenium concentration impact index is less than the minimum value of the historical selenium concentration impact index, it is necessary to increase the amount of selenium added or increase the light intensity and carbon dioxide concentration to promote the accumulation rate of selenium in wheat plants.

[0041] By real-time monitoring and adjusting the selenium content impact index and the selenium concentration impact index, the absorption and accumulation rate of selenium by wheat plants can be controlled more accurately. This avoids the waste and excessive accumulation that may result from blindly increasing the amount of selenium added, prevents the quality of wheat from being affected by selenium deficiency, and achieves a more accurate assessment of selenium data.

[0042] Furthermore, the steps for obtaining the interference value of environmental factors are as follows: using a soil pH tester to measure the soil pH value of the root soil of the wheat plant to be tested in real time, and combining it with the corresponding reference soil pH value to obtain a soil pH score, the soil pH score being the ratio of the difference between the soil pH value and the reference soil pH value to the reference soil pH value, the reference soil pH value being the pH value of neutral soil; using a potentiometer to measure the working electrode and the reference electrode of the root soil of the wheat plant to be tested in real time to obtain a redox potential score, the working electrode being the soil redox potential of the root soil of the wheat plant to be tested during the measurement of the potentiometer, the reference electrode being the initial soil redox potential of the root soil of the wheat plant to be tested before the measurement of the potentiometer, the redox potential score being the difference between the soil redox potential and the initial soil redox potential and the initial soil The initial soil redox potential is the minimum value of the historical soil redox potential in the preset database that is not 0; the soil competitive ion components of the soil of the root system of the wheat plant to be tested are measured in real time by an ion chromatograph to obtain the calcium ion content, magnesium ion content and sodium ion content, and the soil competitive ion score is obtained in combination with the corresponding reference value. The soil competitive ion score is used to reflect the proportion of the soil competitive ion content in the soil element content. The soil element content includes selenium content, calcium ion content, magnesium ion content and sodium ion content; the obtained soil pH score, redox potential score and soil competitive ion score are added to obtain the environmental factor interference value, and the position of the root system of the wheat plant to be tested measured in real time by the soil pH tester, the potential meter and the ion chromatograph in the same time period is the same.

[0043] In this embodiment, the specific limiting expression of the environmental factor interference value is:

[0044]

[0045]

[0046] Where i is the number of the preset time period, i = 1, 2, ..., U, U is the total number of preset time periods, e is a natural constant, GU i It represents the environmental factor interference value of the preset monitoring point in the growth environment area during the i-th preset time period, E i represents the soil competitive ion fraction at the preset monitoring point in the growth environment area during the i-th preset time period, C1 i represents the soil pH value of the root soil of the tested wheat plant in the growth environment area during the i-th preset time period, C10 represents the reference soil pH value, D1 i represents the working electrode at the preset monitoring point in the growth environment area during the i-th preset time period, D10 represents the reference electrode, R1 iR2 represents the selenium content of the preset monitoring point in the growth environment area during the i-th preset time period. i R3 represents the calcium ion content of the preset monitoring point in the growth environment area during the i-th preset time period, i R4 represents the magnesium ion content at the preset monitoring point in the growth environment area during the i-th preset time period. i It represents the sodium ion content of the preset monitoring point in the growth environment area during the i-th preset time period.

[0047] Specifically, the preset monitoring point in the calculation formula of the environmental factor interference value is the root position of the wheat plant to be tested. Among them, C i It represents the soil pH value score of the root soil of the tested wheat plant in the growth environment area during the i-th preset time period, D i It represents the redox potential score of the root soil of the tested wheat plant in the growth environment area in the i-th preset time period. The simplified calculation formula of the environmental factor interference value is: The statistical table of changes in environmental factor interference values ​​is shown in Table 1:

[0048] Table 1 Statistics of changes in environmental factor interference values

[0049]

[0050]

[0051] It should be understood that the environmental factor assessment value increases with the increase of soil pH score, redox potential score and soil competitive ion score; it should be noted that the soil pH score also indirectly affects the value of the redox potential score. When the soil pH value increases, the redox reaction activity in the soil of the wheat plant root system decreases, resulting in a decrease in the redox potential, thereby reducing the value of the redox potential score.

[0052] In addition, by considering the inhibitory effect of soil competing ion content on the selenium absorption efficiency of wheat plants, the fertilization plan can be adjusted to reduce the supply of soil competing ions (such as using fertilizers with selenium as the main ingredient), which helps to optimize the nutrient absorption structure of wheat plants and improve the biological effectiveness of selenium, thereby achieving an improvement in the accuracy of the assessment of wheat selenium absorption efficiency during the monitoring and regulation process, effectively solving the problem of low accuracy in the assessment of wheat selenium absorption efficiency during the monitoring and regulation process in the prior art.

[0053] Furthermore, the specific process of judging whether to execute the environmental control measures corresponding to the control instructions according to the obtained environmental factor interference value and the environmental factor reference value is as follows: judging whether the obtained environmental factor interference value is less than the environmental factor reference value: if the obtained environmental factor interference value is less than the environmental factor reference value, it indicates that the wheat plant to be tested fully absorbs the selenium element at the preset monitoring point and stores the obtained environmental factor interference value in the system management module; if the obtained environmental factor interference value is greater than or equal to the environmental factor reference value, the environmental control measures corresponding to the control instructions are executed and the growth environment factors are re-evaluated.

[0054] In this embodiment, the environmental factor reference value is represented by the result of summing and averaging the historical environmental factor interference values ​​in the preset database. If the obtained environmental factor interference value is less than the environmental factor reference value, it indicates that the absorption of selenium by the wheat plant to be tested at the preset monitoring point is sufficient, and the environmental interference is negligible. If the obtained environmental factor interference value is greater than or equal to the environmental factor reference value, it indicates that the current environmental conditions interfere with the absorption of selenium by the wheat plant, which may affect its growth and yield. Therefore, it is necessary to promote the absorption of selenium by the wheat plant, for example, changing the preset monitoring point position to re-acquire the environmental factor interference value, increasing selenium fertilizer and increasing irrigation water. By continuously monitoring and changing environmental control measures, it helps to ensure that the wheat plant can fully absorb selenium, improve the absorption efficiency of selenium and the quality of agricultural products, and achieve more accurate acquisition of environmental factor interference values.

[0055] Furthermore, the system management module includes an operation evaluation index acquisition unit and a monitoring and early warning unit; the operation evaluation index acquisition unit is used to monitor the actual operation status of the system in real time through the deployed sensors, and at the same time evaluate the actual operation status according to the obtained environmental factor interference value to obtain the operation evaluation index; the monitoring and early warning unit is used to determine whether the obtained operation evaluation index is within the preset operation index range. If so, it indicates that the system is operating normally, otherwise, an abnormal warning is executed and the abnormal warning module is optimized and adjusted accordingly, and the actual operation status is re-evaluated until the obtained operation evaluation index is within the preset operation index range.

[0056] In this embodiment, the preset operating indicator range is the range corresponding to the maximum and minimum values ​​of the historical operating evaluation indicators in the preset database. If the obtained operating evaluation indicator is not within the preset operating indicator range, the operation and maintenance personnel are prompted to perform maintenance through sound and light warnings to determine the specific reasons for the abnormal operation evaluation indicators, such as monitoring sensor failure and system configuration errors. Optimization and adjustment can be made by replacing the monitoring sensor and reconfiguring the system, thereby improving the more accurate evaluation of the selenium absorption efficiency of wheat plants.

[0057] Furthermore, a specific method for obtaining the operation evaluation index is as follows: obtaining a selenium content score according to a first selenium content and a second selenium content, the first selenium content being the selenium content of the wheat plant to be tested in the previous time period, the second selenium content being the selenium content of the wheat plant to be tested in the preset time period, and the selenium content score being the ratio of the absolute value of the difference between the second selenium content and the first selenium content to the first selenium content; obtaining a selenium concentration score according to a first selenium concentration and a second selenium concentration, the first selenium concentration being the selenium concentration of the wheat plant to be tested in the previous time period, the second selenium concentration being the selenium concentration of the wheat plant to be tested in the preset time period, and the selenium concentration score being the ratio of the absolute value of the difference between the second selenium concentration and the first selenium concentration to the first selenium concentration; obtaining a preset selenium content score weight factor and a selenium concentration score weight factor from a preset database. The weight factor is combined with the obtained selenium content score and selenium concentration score to obtain the data acquisition accuracy; the selenium data processing efficiency is obtained according to the first acquisition time period, the second acquisition time period and the preset time period, the first acquisition time period is the acquisition time of the selenium influence index, the second acquisition time period is the acquisition time of the growth environment data, and the selenium data processing efficiency is the complement of the ratio of the sum of the first acquisition time period and the second acquisition time period to the preset time period; the environmental adjustment execution efficiency is obtained according to the complement of the ratio operation between the operation monitoring time and the operation monitoring reference time, and the preset data acquisition accuracy weight factor, selenium data processing efficiency weight factor and environmental adjustment execution efficiency weight factor are obtained from the preset database, and the operation evaluation index is obtained by combining the obtained data acquisition accuracy, selenium data processing efficiency and environmental adjustment execution efficiency. The operation monitoring time is the time corresponding to the actual operation status of the real-time monitoring system.

[0058] Among them, the sum of the selenium content score weight factor and the selenium concentration score weight factor is 1, the selenium content score weight factor is the weight factor corresponding to the selenium content score in the preset database during the acquisition of the operation evaluation index, and represents the numerical value of the influence of the selenium content score on the operation evaluation index. When used, the selenium content score weight factor corresponding to the selenium content score can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the selenium content score corresponding to the selenium content score in the process of obtaining the operation evaluation index and the weight factor corresponding to the selenium content score in the preset database form a mapping set, and the real-time selenium content score is input into the mapping set to obtain the corresponding selenium content score weight factor, wherein the mapping relationship can be one-to-one or many-to-one. In this example, the value range of the selenium content score weight factor is [0,1].

[0059] Specifically, the sum of the data acquisition accuracy weight factor, the selenium element data processing efficiency weight factor and the ring adjustment execution efficiency weight factor is 1, wherein the data acquisition accuracy weight factor is the weight factor corresponding to the data acquisition accuracy in the preset database during the acquisition of the operation evaluation index, which represents the numerical value of the degree of influence of the data acquisition accuracy on the operation evaluation index. When used, the data acquisition accuracy weight factor corresponding to the data acquisition accuracy can be directly obtained from the preset database, and the corresponding relationship can be a pre-set mapping relationship. For example, the data acquisition accuracy corresponding to the data acquisition accuracy during the acquisition of the operation evaluation index and the weight factor corresponding to the data acquisition accuracy in the preset database form a mapping set, and the real-time data acquisition accuracy is input into the mapping set to obtain the corresponding data acquisition accuracy weight factor, wherein the mapping relationship can be one-to-one or many-to-one. The value range of the data acquisition accuracy weight factor in this example is [0,1].

[0060] The selenium data processing efficiency weight factor is a weight factor corresponding to the selenium data processing efficiency in the preset database during the acquisition of the operation evaluation index, which represents the numerical value of the influence of the selenium data processing efficiency on the operation evaluation index. When used, the selenium data processing efficiency weight factor corresponding to the selenium data processing efficiency can be directly obtained from the preset database. The corresponding relationship can be a pre-set mapping relationship. For example, the selenium data processing efficiency corresponding to the selenium data processing efficiency during the acquisition of the operation evaluation index and the weight factor corresponding to the selenium data processing efficiency in the preset database form a mapping set, and the real-time selenium data processing efficiency is input into the mapping set to obtain the corresponding selenium data processing efficiency weight factor, wherein the mapping relationship can be one-to-one or many-to-one. In this example, the value range of the selenium data processing efficiency weight factor is [0,1].

[0061] In this embodiment, the specific limiting expression of the running evaluation index is:

[0062]

[0063] i is the number of the preset time period, i = 1, 2, ..., U, U is the total number of preset time periods, YUN i represents the operation evaluation index of the system in the i-th preset time period, β1 represents the weight factor of data acquisition accuracy, G i represents the data acquisition accuracy of the system in the i-th preset time period, β2 represents the selenium data processing efficiency, β3 represents the ring adjustment execution efficiency, α1 represents the selenium content score weight factor, F1 i F1 represents the second selenium content of the root system of the tested wheat plant in the i-th preset time period, i-1represents the first selenium content of the root system of the tested wheat plant in the i-1th preset time period, α2 represents the selenium concentration fraction weight factor, F2 i F2 represents the second selenium concentration of the root system of the tested wheat plant in the i-th preset time period. i-1 represents the second selenium concentration of the root system of the tested wheat plant in the i-1th preset time period, F10 represents the initial selenium content of the tested wheat plant, F20 represents the initial selenium concentration of the tested wheat plant, T1 i Indicates the first acquisition time period of the system within the i-th preset time period, T2 i represents the second acquisition time period of the system within the i-th preset time period, T0 represents the duration of the preset time period, Z i It represents the operation monitoring duration of the system in the i-th preset time period, and Z0 represents the operation monitoring reference duration.

[0064] Specifically, the initial selenium content and initial selenium concentration are the initial values ​​of the tested wheat plants before irrigation. is the selenium element data processing efficiency of the system in the i-th preset time period, It is the environmental adjustment execution efficiency of the system in the i-th preset time period. The operation evaluation index increases with the increase of data acquisition accuracy, data processing efficiency and environmental adjustment execution efficiency. Among them, the data acquisition accuracy increases with the increase of the second selenium content, the selenium data processing efficiency decreases with the increase of the sum of the first acquisition time period and the second acquisition time period, and the environmental adjustment execution efficiency decreases with the increase of the operation monitoring time. It should be understood that the selenium data processing efficiency also indirectly affects the value of the environmental adjustment execution efficiency.

[0065] When the efficiency of selenium data processing decreases, it means that the system needs longer time to complete the analysis and evaluation of selenium content and concentration changes, thereby delaying the decision to regulate the growth environment of wheat plants, which in turn affects the efficiency of wheat plants to absorb selenium, and cannot accurately reflect the actual growth conditions and needs of wheat plants. Therefore, by fully considering the impact of data processing efficiency on the efficiency of environmental regulation, the resource allocation strategy of the system can be improved, the efficiency of selenium data processing and environmental regulation can be improved, and the accuracy of wheat selenium absorption efficiency evaluation during monitoring and regulation can be improved, which effectively solves the problem of low accuracy of wheat selenium absorption efficiency evaluation during monitoring and regulation in the prior art.

[0066] like Figure 4As shown, it is a flow chart of a selenium monitoring and control method for a wheat growth environment provided in an embodiment of the present application. A selenium monitoring and control method for a wheat growth environment provided in an embodiment of the present application comprises the following steps: S1, obtaining selenium data of a wheat plant to be tested in a growth environment area and growth environment data of a preset monitoring point, obtaining a selenium influence index according to changes in the growth environment data within a preset time period, the selenium influence index being used to reflect the degree of influence of the growth environment of the preset monitoring point on the selenium absorption efficiency of the wheat plant to be tested; S2, evaluating whether the selenium data is within the growth index range of the wheat plant to be tested according to the acquired selenium influence index, if not, generating a corresponding control instruction according to the evaluation result, the growth index range comprising a selenium content index range and a selenium concentration index range, the control instruction being the increase or decrease amount of environmental control; S3, The growth environment factors are evaluated to obtain the environmental factor interference value, and at the same time, it is judged whether to execute the environmental control measures corresponding to the control instructions according to the obtained environmental factor interference value and the environmental factor reference value. The growth environment factors are used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption. The environmental factor interference value is used to evaluate the interference degree of the growth environment factors of the preset monitoring points on the sufficiency of selenium absorption by the wheat plant to be tested. The environmental scheduling instructions include adjusting the amount of selenium added in the irrigation water and adjusting the growth environment factors; S4, real-time monitoring of the actual operation status of the system to obtain operation evaluation indicators, and at the same time optimizing and adjusting the system according to the obtained operation evaluation indicators. The actual operation status includes the accuracy of data acquisition, the speed of data processing and the execution efficiency of environmental control. The operation evaluation indicators are used to evaluate the stability of the system during operation.

[0067] In this embodiment, the actual operating status of the real-time monitoring system is for the selenium data acquisition module, the selenium data processing module and the environmental control module, and the system is optimized and adjusted according to the operation evaluation indicators. This closed-loop feedback mechanism can continuously improve the stability and operating efficiency of the system, ensure the long-term stable operation of the system and continue to provide high-quality monitoring and control services. Secondly, the method of this embodiment is not only suitable for the monitoring and control of wheat selenium absorption efficiency, but can also be extended to the monitoring and control of other crops and nutrients according to actual needs, thereby achieving an improvement in the accuracy of wheat selenium absorption efficiency evaluation during the monitoring and control process.

[0068] To summarize, the embodiment of the present application evaluates whether the selenium element data is within the growth index range of the wheat plant to be tested through the acquired selenium element influence index, then obtains the environmental factor interference value and determines whether to implement environmental control measures, and finally monitors the actual operating status of the system in real time to obtain the operating evaluation index and optimize and adjust it, thereby achieving an improvement in the accuracy of obtaining the environmental factor interference value, and then achieving an improvement in the accuracy of the evaluation of the wheat selenium absorption efficiency during the monitoring and control process, effectively solving the problem of low accuracy in the evaluation of the wheat selenium absorption efficiency during the monitoring and control process in the prior art.

[0069] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0070] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0071] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0072] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0073] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0074] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A selenium monitoring and control system for wheat growth environment, characterized in that: include: Selenium element data acquisition module, selenium element data processing module, environment control module and system management module; The selenium element data acquisition module is used to acquire the selenium element data of the wheat plant to be tested in the growth environment area and the growth environment data of the preset monitoring point, and obtain the selenium element impact index according to the change of the growth environment data within the preset time period, and the selenium element impact index is used to reflect the influence of the growth environment of the preset monitoring point on the efficiency of selenium absorption by the wheat plant to be tested; The selenium element data processing module is used to evaluate whether the selenium element data is within the growth index range of the wheat plant to be tested according to the acquired selenium element impact index, and if not, to generate corresponding control instructions according to the evaluation result; The environmental control module is used to evaluate the growth environment factors to obtain the environmental factor interference value, and at the same time, judge whether to execute the environmental control measures corresponding to the control instruction according to the obtained environmental factor interference value and the environmental factor reference value. The growth environment factors are used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption, and the environmental factor interference value is used to evaluate the interference degree of the growth environment factors of the preset monitoring point on the sufficiency of selenium absorption by the wheat plant to be tested; The system management module is used to monitor the actual operating status of the system in real time to obtain operating evaluation indicators, and optimize and adjust the system according to the obtained operating evaluation indicators. The operating evaluation indicators are used to evaluate the stability of the system during operation.

2. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The selenium element data include selenium element content and selenium element concentration; The growth environment data include the amount of selenium added to the irrigation water, light intensity, air temperature, air humidity and carbon dioxide concentration.

3. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The specific limiting expression of the selenium influence index is: Where i is the number of the preset time period, i = 1, 2, ..., U, U is the total number of preset time periods, e is a natural constant, XI represents the selenium influence index of the wheat plants to be tested in the growth environment area in the preset time period, P i It represents the influence index of selenium content of the tested wheat plants in the growth environment area during the i-th preset time period, Q i A represents the influence index of selenium concentration of the tested wheat plants in the growth environment area during the i-th preset time period, i represents the amount of selenium added to the wheat plant to be tested in the growth environment area during the i-th preset time period, A0 represents the reference amount of selenium added, P1 i represents the air temperature at the preset monitoring point in the growth environment area during the i-th preset time period, K10 represents the reference air temperature at the preset monitoring point, P2 i represents the air humidity at the preset monitoring point in the growth environment area during the i-th preset time period, K20 represents the reference air humidity at the preset monitoring point, Q1 i represents the light intensity at the preset monitoring point in the growth environment area during the i-th preset time period, L10 represents the reference light intensity at the preset monitoring point, Q2 i It represents the carbon dioxide concentration at the preset monitoring point in the growth environment area during the i-th preset time period, and L20 represents the reference carbon dioxide concentration at the preset monitoring point.

4. A selenium monitoring and control system for wheat growth environment as claimed in claim 3, characterized in that: The specific steps of evaluating whether the selenium element data is within the growth index range of the wheat plant to be tested according to the obtained selenium element impact index include: Step 1, judging whether the obtained selenium influence index is within the growth index range of the wheat plant to be tested, if so, it indicates that the growth environment data meets the conditions for the wheat plant to be tested to absorb selenium, otherwise, executing step 2; Step 2, judging whether the selenium content influence index is within the selenium content index range of the wheat plant to be tested, if so, executing step 3, otherwise adjusting the content influence parameters, wherein the content influence parameters include the amount of selenium added to the wheat plant to be tested, the air temperature and the air humidity at the preset monitoring point; Step three, determine whether the selenium concentration influence index is within the selenium concentration index range of the wheat plant to be tested. If so, store the obtained selenium influence index in the database; otherwise, adjust the concentration influence parameters, which include the amount of selenium added to the wheat plant to be tested, the light intensity at the preset monitoring point, and the carbon dioxide concentration.

5. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The soil data include soil pH value, soil redox potential and soil competitive ion content; The soil pH value affects the absorption effectiveness of selenium by the wheat plants to be tested in the alkaline soil; The soil redox potential affects the absorption effectiveness of selenium by the tested wheat plants in the redox state of the alkaline soil; The soil competitive ion content includes calcium ion content, magnesium ion content and sodium ion content.

6. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The steps for obtaining the environmental factor interference value are: The soil pH value of the root soil of the wheat plant to be tested is measured in real time by a soil pH tester, and a soil pH value score is obtained in combination with a corresponding reference soil pH value, wherein the soil pH value score is the ratio of the difference between the soil pH value and the reference soil pH value to the reference soil pH value, and the reference soil pH value is the pH value of neutral soil; The working electrode and the reference electrode of the root soil of the wheat plant to be tested are measured in real time by a potentiometer to obtain a redox potential score, wherein the working electrode is the soil redox potential of the root soil of the wheat plant to be tested during the measurement of the potentiometer, and the reference electrode is the initial soil redox potential of the root soil of the wheat plant to be tested before the measurement of the potentiometer, and the redox potential score is the ratio of the difference between the soil redox potential and the initial soil redox potential to the initial soil redox potential, and the initial soil redox potential is the minimum value of the historical soil redox potential in a preset database; The soil competitive ion components of the root soil of the wheat plant to be tested are measured in real time by an ion chromatograph to obtain the calcium ion content, the magnesium ion content and the sodium ion content, and the soil competitive ion score is obtained in combination with the corresponding reference value, wherein the soil competitive ion score is used to reflect the proportion of the soil competitive ion content in the soil element content, and the soil element content includes selenium content, calcium ion content, magnesium ion content and sodium ion content; The soil pH score, redox potential score and soil competitive ion score are added to obtain the environmental factor interference value. The positions of the roots of the wheat plants to be tested measured in real time by the soil pH tester, potential meter and ion chromatograph in the same time period are the same.

7. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The specific process of judging whether to execute the environmental control measures corresponding to the control instruction according to the obtained environmental factor interference value and environmental factor reference value is as follows: Determine whether the obtained environmental factor interference value is less than the environmental factor reference value: If the obtained environmental factor interference value is less than the environmental factor reference value, it indicates that the wheat plant to be tested fully absorbs the selenium element at the preset monitoring point and the obtained environmental factor interference value is stored in the system management module; If the obtained environmental factor interference value is greater than or equal to the environmental factor reference value, the environmental control measures corresponding to the control instructions are executed and the growth environment factors are re-evaluated.

8. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The system management module includes an operation evaluation index acquisition unit and a monitoring and early warning unit; The operation evaluation index acquisition unit is used to monitor the actual operation status of the system in real time through the deployed sensors, and evaluate the actual operation status according to the obtained environmental factor interference value to obtain the operation evaluation index; The monitoring and early warning unit is used to determine whether the obtained operation evaluation indicators are within the preset operation indicator range. If so, it indicates that the system is operating normally. Otherwise, an abnormal warning is executed and the abnormal warning module is optimized and adjusted accordingly, and the actual operation status is re-evaluated until the obtained operation evaluation indicators are within the preset operation indicator range.

9. A selenium monitoring and control system for wheat growth environment as claimed in claim 1, characterized in that: The specific method for obtaining the operation evaluation index is as follows: Obtaining a selenium content score according to a first selenium content and a second selenium content, wherein the first selenium content is the selenium content of the wheat plant to be tested in the previous time period, the second selenium content is the selenium content of the wheat plant to be tested in a preset time period, and the selenium content score is the ratio of the absolute value of the difference between the second selenium content and the first selenium content to the first selenium content; Obtaining a selenium concentration score according to a first selenium concentration and a second selenium concentration, wherein the first selenium concentration is the selenium concentration of the wheat plant to be tested in the previous time period, the second selenium concentration is the selenium concentration of the wheat plant to be tested in a preset time period, and the selenium concentration score is the ratio of the absolute value of the difference between the second selenium concentration and the first selenium concentration to the first selenium concentration; Obtaining a preset selenium content score weight factor and a selenium concentration score weight factor from a preset database, and combining the obtained selenium content score and selenium concentration score to obtain a data acquisition accuracy rate; Acquire the selenium element data processing efficiency according to a first acquisition time period, a second acquisition time period and a preset time period, wherein the first acquisition time period is the acquisition time of the selenium element impact index, the second acquisition time period is the acquisition time of the growth environment data, and the selenium element data processing efficiency is the complement of the ratio of the sum of the first acquisition time period and the second acquisition time period to the preset time period; The environmental control execution efficiency is obtained by taking the complement of the ratio between the operation monitoring time and the operation monitoring reference time, and the preset data acquisition accuracy weight factor, selenium element data processing efficiency weight factor and environmental control execution efficiency weight factor are obtained from the preset database. The operation evaluation index is obtained by combining the acquired data acquisition accuracy, selenium element data processing efficiency and environmental control execution efficiency. The operation monitoring time is the time corresponding to the actual operation status of the real-time monitoring system.

10. A method for monitoring and controlling selenium in a wheat growth environment, characterized in that: The following steps are involved: S1, obtaining selenium element data of the wheat plant to be tested in the growth environment area and the growth environment data of the preset monitoring point, and obtaining a selenium element influence index according to the change of the growth environment data within a preset time period, wherein the selenium element influence index is used to reflect the influence of the growth environment of the preset monitoring point on the selenium absorption efficiency of the wheat plant to be tested; S2, evaluating whether the selenium element data is within the growth index range of the wheat plant to be tested according to the obtained selenium element impact index, and if not, generating corresponding control instructions according to the evaluation result; S3, evaluating the growth environment factor to obtain the environmental factor interference value, and judging whether to execute the environmental control measure corresponding to the control instruction according to the obtained environmental factor interference value and the environmental factor reference value, wherein the growth environment factor is used to reflect the influence of the soil data corresponding to the root system of the wheat plant to be tested on the sufficiency of selenium absorption, and the environmental factor interference value is used to evaluate the interference degree of the growth environment factor of the preset monitoring point on the sufficiency of selenium absorption by the wheat plant to be tested; S4, real-time monitoring of the actual operating status of the system to obtain operating evaluation indicators, and optimizing and adjusting the system according to the obtained operating evaluation indicators, wherein the operating evaluation indicators are used to evaluate the stability of the system during operation.

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