Grounding impedance adaptive adjustment method and system based on environmental perception

Abstract

The invention relates to the technical field of wind power plant lightning protection transformation, and discloses a grounding impedance adaptive adjustment method and system based on environmental perception, and the method comprises the steps: collecting environmental soil characteristic parameter data in real time, summarizing the collected data, and carrying out the calculation of the collected data; the collected data are collected and judged to obtain decision suggestions, and the working state of the spraying device is controlled according to the decision suggestions; the actual condition of the tower grounding soil environment is accurately reflected by collecting environmental soil characteristic parameter data in real time, the working state of the spraying device is automatically controlled according to decision suggestions made according to the data, self-adaptive adjustment of grounding impedance is achieved, it is ensured that the tower grounding soil can keep a low impedance value under various environmental conditions, and the working efficiency of the tower grounding soil is improved. Therefore, the safety and stability of the grounding system are improved, and the lightning damage risk of the current collection line caused by poor grounding is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of lightning protection modification of wind farms, and in particular relates to a method and system for adaptively adjusting ground impedance based on environmental perception. Background Art

[0002] With the continuous increase in the number of domestic new energy stations, a series of challenges for each new energy station have also emerged, among which the problem of lightning damage to the collector line is particularly prominent. In particular, new energy stations in mountainous areas such as southwest my country face unique geographical challenges. These stations are as high as 2000m-2400m above sea level, with complex and changeable terrain. The high altitude and mountainous environment make the routing position of the collector line relatively prominent. In order to make full use of wind resources, wind turbines are basically routed along the ridge, and the collector line is also basically routed along the ridge, which makes the ground inclination of the collector line large and the ground shielding effect is extremely poor. Therefore, affected by this special geographical condition, the collector line frequently trips due to lightning strikes, which has become a major problem that needs to be solved urgently by various new energy stations.

[0003] The grounding impedance of the line tower is a key parameter that directly affects the line lightning tripping. The collector line is routed along the ridge. The soil on the ridge is poor, mostly a mixture of loose soil and gravel, with extremely low soil moisture and extremely high soil resistivity. The soil resistivity at some towers is even greater than 5000Ω·m. The higher the soil resistivity, the greater the grounding resistance of the tower, and the more likely it is that lightning strikes back. At the same time, the greater the grounding resistance, the greater the overvoltage at both ends of the line arrester during a lightning strike, causing the line arrester to withstand multiple large-value lightning current shocks in a short period of time, and the service life of the arrester is seriously shortened. Therefore, for line lightning protection, reducing the grounding resistance of the tower is the most fundamental and effective way to improve the lightning resistance level of the transmission line and reduce the strike tripping rate.

[0004] At present, the transformation of the line tower grounding impedance is mainly the manual transformation of the tower grounding body (grounding impedance), such as extending the tower grounding body, deepening the tower grounding body, using graphite materials for the grounding body, etc. However, these measures have inevitable drawbacks, mainly in the following three aspects: First, the transformation effect is difficult to guarantee. In summary, some towers are installed on ridges, and their soil environment is a mixture of loose soil and gravel. The soil resistivity is extremely high. The grounding part of the tower is a ridge, and it is extremely difficult to deepen the grounding body longitudinally. Therefore, the transformation method for this grounding impedance mostly adopts the laying of horizontal extension grounding bodies. Due to soil shunt, the voltage of the lightning current along the horizontal extension grounding body will gradually decay. If the grounding body exceeds the effective length, then the lengthening of the grounding body will not have any effect on the discharge of the impact current. According to various research results, the maximum length of each grounding body at different soil resistivities is specified in my country's power industry standard DL / T621-1997 "Grounding of AC Electrical Installations", as shown in Table 1. Therefore, for the ridge, extending and deepening the grounding body has the disadvantage of uncontrollable effect. In other words, for the unique soil environment of a mixture of loose soil and gravel, the change of the grounding body is not obvious in the transformation effect.

[0005] Table 1 Maximum length of each radial grounding electrode at different soil resistivities

[0006] Second, the transformation is extremely difficult. Take a mountain wind farm in Yunnan as an example. The wind farm has 172 units, 36 collector lines, a total length of 447 kilometers, and 1,771 towers. If the grounding impedance of all towers or half of them is to be transformed, the transportation and construction of large-scale operating equipment and manual construction will be extremely difficult, and the economic cost will also be huge.

[0007] Third, the renovation time is limited. For the manual grounding impedance renovation, in order to ensure the personal safety of the construction workers, in order to prevent the lightning from striking the tower and injuring people through the tower grounding body, the work cannot be carried out throughout the thunderstorm season, and the renovation time is limited. Summary of the invention

[0008] The purpose of the present invention is to overcome the above problems and provide a method and system for adaptively adjusting ground impedance based on environmental perception, which automatically adjusts the working state of the actuator unit by real-time online monitoring of various environmental parameters of the soil at the bottom of the tower and combines with preset judgment logic to achieve adaptive adjustment of the ground impedance, so as to effectively and real-time reduce the tower ground impedance.

[0009] In order to achieve the above object, the present invention adopts the following technical solution: In a first aspect, the present invention provides a method for adaptively adjusting ground impedance based on environment perception, comprising the following steps: Collect environmental soil characteristic parameter data in real time and summarize the collected data; By collecting and judging the aggregated data, decision-making recommendations are obtained; Control the working status of the sprinkler device according to the decision suggestions.

[0010] A further improvement of the present invention is that the step of real-time collection of environmental soil characteristic parameter data specifically includes real-time collection of environmental soil characteristic parameter data through a soil grounding impedance online monitor, a soil moisture sensor and a soil resistivity online monitor to obtain soil grounding impedance values, soil moisture values ​​and soil resistivity values.

[0011] A further improvement of the present invention is that the step of collecting and judging the summarized data also includes preprocessing the collected environmental soil characteristic parameter data to ensure the accuracy and consistency of the data.

[0012] A further improvement of the present invention is that the step of preprocessing the collected environmental soil characteristic parameter data specifically includes data cleaning, denoising and normalization.

[0013] A further improvement of the present invention is that the step of collecting and judging the aggregated data to obtain a decision suggestion is specifically to output a judgment result and make a decision suggestion according to a preset logical judgment formula; The logic judgment formula is: for the soil grounding impedance value, set it to α, where: α<10Ω is normal, 10Ω≤α<15Ω is caution, and α≥15Ω is out of limit; For the soil moisture value, it is set to β, where: β>30% is normal, 10%<β≤30% is caution, and β≤10% is out of limit; The soil resistivity value is set to γ, where γ<1000Ω·m is normal, 1000Ω·m<γ≤2000Ω·m is cautionary, and γ>2000Ω·m is out of limit.

[0014] A further improvement of the present invention is that the decision suggestion includes: when the three state quantities of soil grounding impedance value, soil moisture value and soil resistivity value are all judged to be normal, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any two of the state quantities are judged as normal and one of the state quantities is judged as caution, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one state quantity is judged as normal and two state quantities are judged as caution, the decision suggestion is: the actuator action; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one of the state quantities is judged to be out of limit, the decision recommendation is: the actuator takes action.

[0015] A further improvement of the present invention is that the step of controlling the working state of the spray device according to the decision suggestion specifically includes: when the received decision suggestion is the action of the actuator, controlling the main valve of the spray device to open, and each spray device to work, and perform the spraying work for 30 minutes; When the decision recommendation received is that the actuator does not act, keep the main valve of the sprinkler device in the closed state.

[0016] In a second aspect, the present invention further provides a ground impedance adaptive adjustment system based on environment perception, comprising the following modules: The environmental sensor unit is used to collect environmental soil characteristic parameter data in real time and summarize the collected data; A data processing unit is used to collect and judge the aggregated data to obtain decision suggestions; The actuator unit is used to control the working state of the sprinkler device according to the decision suggestion.

[0017] In a third aspect, the present invention further provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned method for adaptively adjusting ground impedance based on environmental perception when executing the computer program.

[0018] In a fourth aspect, the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for adaptively adjusting ground impedance based on environmental perception are implemented.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a method for adaptively adjusting ground impedance based on environmental perception. The method accurately reflects the actual situation of the grounding soil environment of the tower by real-time collection of environmental soil characteristic parameter data. The working state of the spray device is automatically controlled according to the decision suggestions made by these data, and adaptive adjustment of the grounding impedance is achieved, ensuring that the grounding soil of the tower can maintain a low impedance value under various environmental conditions, thereby improving the safety and stability of the grounding system and reducing the risk of lightning damage to the collector line caused by poor grounding. The method reduces the difficulty of manual inspection and manual construction, realizes automatic monitoring and adjustment of the grounding impedance, and can maintain the stability and reliability of the grounding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention.

[0021] Figure 1 It is a flow chart of the impedance adaptive adjustment method based on environment perception of the present invention; Figure 2 It is a flow chart of the impedance adaptive adjustment system based on environment perception of the present invention; Figure 3 It is a schematic diagram of the impedance adaptive adjustment system based on environment perception of the present invention; Figure 4 It is a summary of environmental sensor data of the impedance adaptive adjustment system based on environmental perception of the present invention; Figure 5 It is the logical judgment of the impedance adaptive adjustment system based on environment perception of the present invention; Figure 6 Provide decision suggestions for the impedance adaptive adjustment system based on environment perception of the present invention; Figure 7 It is an actuator unit of the impedance adaptive adjustment system based on environment perception of the present invention; Figure 8 It is a distribution diagram of the environmental sensors in the tower grounding grid area of ​​the present invention; Fig. 9 This is a distribution diagram of the spraying device in the tower grounding grid area of ​​the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings: like Figure 1 As shown, the present invention provides a method for adaptively adjusting ground impedance based on environment perception, comprising the following steps: S1, collect environmental soil characteristic parameter data in real time and summarize the collected data; The environmental soil characteristic parameter data is collected in real time, specifically, the environmental soil characteristic parameter data is collected in real time through a soil grounding impedance online monitor, a soil moisture sensor and a soil resistivity online monitor to obtain soil grounding impedance value, soil moisture value and soil resistivity value; S2, collects and judges the summarized data to make decision recommendations; This also includes preprocessing the collected environmental soil characteristic parameter data, namely data cleaning, denoising and normalization to ensure the accuracy and consistency of the data; By collecting and judging the summarized data, decision suggestions are obtained. Specifically, according to the preset logical judgment formula, the judgment results are output and decision suggestions are made; The logic judgment formula is: for the soil grounding impedance value, set it to α, where: α<10Ω is normal, 10Ω≤α<15Ω is caution, and α≥15Ω is out of limit; For the soil moisture value, it is set to β, where: β>30% is normal, 10%<β≤30% is caution, and β≤10% is out of limit; For the soil resistivity value, it is set to γ, where: γ<1000Ω·m is normal, 1000Ω·m<γ≤2000Ω·m is caution, and γ>2000Ω·m is out of limit; The decision suggestion includes: when the three state quantities of soil grounding impedance value, soil moisture value and soil resistivity value are all judged to be normal, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any two of the state quantities are judged as normal and one of the state quantities is judged as caution, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one state quantity is judged as normal and two state quantities are judged as caution, the decision suggestion is: the actuator action; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one of the state quantities is judged to be out of limit, the decision suggestion is: the actuator action; S3, controlling the working state of the spray device according to the decision suggestion; When the decision suggestion received is the action of the actuator, the main valve of the spray device is controlled to open, and each spray device works to perform the spraying work for 30 minutes; When the decision recommendation received is that the actuator does not act, keep the main valve of the sprinkler device in the closed state.

[0029] like Figure 2 As shown, the present invention also provides a ground impedance adaptive adjustment system based on environment perception, comprising the following modules: The environmental sensor unit is used to collect environmental soil characteristic parameter data in real time and summarize the collected data; A data processing unit is used to collect and judge the aggregated data to obtain decision suggestions; The actuator unit is used to control the working state of the sprinkler device according to the decision suggestion.

[0030] like Figure 3 As shown, a ground impedance adaptive adjustment system based on environment perception includes an environment sensor unit, a data processing unit and an actuator unit.

[0031] The environmental sensor unit includes an online monitor and a sensor, which is mainly used to collect soil environmental characteristic parameters. The soil grounding impedance online monitor, soil moisture sensor and soil resistivity online monitor are used to collect soil environmental characteristic parameters in real time. Soil grounding impedance online monitor: mainly includes battery module, acquisition module and data processing module, which is used to monitor the grounding impedance of the tower in real time; Soil moisture sensor: mainly includes waterproof probe, power module, temperature compensation module and transmitter module, which is used to monitor the soil resistivity at the bottom of the tower in real time; Soil resistivity online monitor: mainly includes soil resistivity sensor, data processing unit, communication module and power supply system, which is used to monitor the soil resistivity at the bottom of the tower in real time; Furthermore, all types of sensors are equipped with power supplies or battery units. To ensure long-term reliable operation, a combined power supply of photovoltaic panels and batteries is used here; Furthermore, to ensure the effectiveness of the system, the frequency of sensor data collection can be set to 30 minutes per time without losing generality, or adjusted according to weather conditions, to 60 minutes per time in spring, 15 minutes per time in summer, 30 minutes per time in autumn, and 120 minutes per time in winter.

[0032] Furthermore, the environment sensor unit also includes a temperature sensor and a light intensity sensor.

[0033] The data processing unit includes data collection, logical judgment and decision suggestions. It mainly collects data on soil characteristic parameters of the environmental sensor unit, and combines the set logical judgment rules to make logical judgments on the data and give decision suggestions. Data collection: The soil characteristic parameters collected from the environmental sensor unit are preprocessed, including data cleaning, denoising and normalization, to ensure the accuracy and consistency of the data. Then, the soil grounding impedance value, soil moisture value and soil resistivity value are extracted from the preprocessed data. Logical judgment: Based on the data collection results, the preset logical judgment formula is used to output the judgment results and make decision suggestions. The logical judgment and decision suggestion flow chart is as follows: Figures 4 to 5 As shown, the logical judgment formula for each state quantity is as follows: 1) For the soil grounding impedance value, set it to α, where: α<10Ω is normal, 10Ω≤α<15Ω is cautionary, and α≥15Ω is out of limit; 2) For the soil moisture value, set it to β, where β>30% is normal, 10%<β≤30% is caution, and β≤10% is out of limit; 3) For the soil resistivity value, it is set to γ, where γ<1000Ω·m is normal, 1000Ω·m<γ≤2000Ω·m is cautionary, and γ>2000Ω·m is out of limit.

[0034] Furthermore, a comprehensive judgment is made based on the logical judgment results of each state quantity to give decision suggestions, such as Figure 6 As shown, where: 1) When the three state quantities of soil grounding impedance value, soil moisture value and soil resistivity value are all judged to be normal, the decision recommendation is: the actuator does not act; 2) For the soil grounding impedance value, soil moisture value and soil resistivity value, when any two of the state quantities are judged as normal and one of the state quantities is judged as caution, the decision recommendation is: the actuator does not act; 3) For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one of the state quantities is judged as normal and the other two state quantities are judged as caution, the decision suggestion is: the actuator action; 4) For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one of the state quantities is judged to be out of limit, the decision recommendation is: the actuator takes action.

[0035] Actuator unit: Based on the decision suggestions given by the data processing unit, it decides whether the actuator unit will act or not. The main components of the actuator unit are as follows: Figure 7 As shown: 1) When the decision suggestion received is the action of the actuator, the main valve of the spraying device is controlled to open, and each spraying device works for 30 minutes to reduce the soil resistivity, increase the soil humidity, and reduce the grounding impedance of the tower; 2) When the decision recommendation received is that the actuator does not act, keep the main valve of the sprinkler device closed; Furthermore, to ensure the effectiveness of the system, the single spraying operation time should be consistent with the frequency of sensor data collection in the environmental sensor unit.

[0036] like Figure 8 As shown, the soil grounding impedance online monitor, soil moisture sensor, and soil resistivity online monitor are all set in the tower grounding grid area.

[0037] like Fig. 9 As shown, the spray devices are all arranged in the tower grounding grid area, and each spray device is connected to the spray device main valve through the spray device water distribution pipe, and the spray device main valve is connected to the spray device main water pipe.

[0038] In one embodiment of the present invention, a terminal device is provided, the terminal device includes a processor and a memory, the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc., which are the computing core and control core of the terminal, which are suitable for implementing one or more instructions, and are specifically suitable for loading and executing one or more instructions to implement the corresponding method flow or corresponding functions; the processor described in the embodiment of the present invention can be used for the operation of the ground impedance adaptive adjustment method based on environment perception.

[0039] In another embodiment of the present invention, the present invention further provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a terminal device for storing programs and data. It is understandable that the computer-readable storage medium here can include both the built-in storage medium in the terminal device and the extended storage medium supported by the terminal device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the method for adaptively adjusting ground impedance based on environmental perception in the above embodiment.

[0040] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt 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 codes.

[0041] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 generate 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.

[0042] 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 comprising 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.

[0043] 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 1 The steps for the functions specified in one or more boxes.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for adaptively adjusting ground impedance based on environment perception, characterized in that: The following steps are involved: Collect environmental soil characteristic parameter data in real time and summarize the collected data; By collecting and judging the aggregated data, decision-making recommendations are obtained; Control the working status of the sprinkler device according to the decision suggestions.

2. The method for adaptively adjusting ground impedance based on environment perception according to claim 1, characterized in that: The step of real-time collection of environmental soil characteristic parameter data specifically includes real-time collection of environmental soil characteristic parameter data through a soil grounding impedance online monitor, a soil moisture sensor and a soil resistivity online monitor to obtain soil grounding impedance values, soil moisture values ​​and soil resistivity values.

3. The method for adaptively adjusting ground impedance based on environment perception according to claim 1, characterized in that: The step of collecting and judging the summarized data also includes preprocessing the collected environmental soil characteristic parameter data to ensure the accuracy and consistency of the data.

4. The method for adaptively adjusting ground impedance based on environment perception according to claim 3 is characterized in that: The step of preprocessing the collected environmental soil characteristic parameter data specifically includes data cleaning, denoising and normalization.

5. The method for adaptively adjusting ground impedance based on environment perception according to claim 1, characterized in that: The step of collecting and judging the summarized data to obtain decision suggestions is specifically to output the judgment results and make decision suggestions according to a preset logical judgment formula; The logic judgment formula is: for the soil grounding impedance value, set it to α, where: α<10Ω is normal, 10Ω≤α<15Ω is caution, and α≥15Ω is out of limit; For the soil moisture value, it is set to β, where: β>30% is normal, 10%<β≤30% is caution, and β≤10% is out of limit; The soil resistivity value is set to γ, where γ<1000Ω·m is normal, 1000Ω·m<γ≤2000Ω·m is cautionary, and γ>2000Ω·m is out of limit.

6. The method for adaptively adjusting ground impedance based on environment perception according to claim 5, characterized in that: The decision suggestion includes: when the three state quantities of soil grounding impedance value, soil moisture value and soil resistivity value are all judged to be normal, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any two of the state quantities are judged as normal and one of the state quantities is judged as caution, the decision suggestion is: the actuator does not act; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one state quantity is judged as normal and two state quantities are judged as caution, the decision suggestion is: the actuator action; For the soil grounding impedance value, soil moisture value and soil resistivity value, when any one of the state quantities is judged to be out of limit, the decision recommendation is: the actuator takes action.

7. The method for adaptively adjusting ground impedance based on environment perception according to claim 6, characterized in that: The step of controlling the working state of the spray device according to the decision suggestion specifically includes: when the received decision suggestion is the action of the actuator, controlling to open the main valve of the spray device, so that each spray device works and performs the spraying work for 30 minutes; When the decision recommendation received is that the actuator does not act, keep the main valve of the sprinkler device in the closed state.

8. A ground impedance adaptive adjustment system based on environment perception, characterized in that: Includes the following modules: The environmental sensor unit is used to collect environmental soil characteristic parameter data in real time and summarize the collected data; A data processing unit is used to collect and judge the aggregated data to obtain decision suggestions; The actuator unit is used to control the working state of the sprinkler device according to the decision suggestion.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for adaptively adjusting ground impedance based on environment perception according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for adaptively adjusting ground impedance based on environment perception according to any one of claims 1 to 7 are implemented.

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