A soil moisture monitoring device for providing irrigation decision and implementation method thereof

Abstract

The present invention provides a soil moisture monitoring device for providing irrigation decision and its implementation method, comprising a main control unit, a moisture sensor unit, a communication module, a power module and a cloud data processing system; the main control unit controls the moisture sensor unit to monitor soil moisture; the communication module is used to remotely transmit the data collected by the main control unit to the cloud data processing system by wireless communication, and the cloud data processing system includes a data storage unit and a data analysis unit mounted on a cloud server; the data storage unit is used to store the data transmitted to the cloud data processing system; the data analysis unit is configured to obtain dynamic effective water storage capacity and current effective water storage data based on the monitored soil moisture data, compare the difference between the dynamic effective water storage capacity and the current effective water storage, and obtain an irrigation decision of irrigation duration according to the difference divided by the irrigation rate obtained by historical statistics. It provides guidance for irrigation decision and provides optimal irrigation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of agricultural intelligent sensing technology, and in particular to a soil moisture monitoring device for providing irrigation decision-making and an implementation method thereof. Background Art

[0002] Water is an important component of crops and a necessary condition for ensuring the normal life activities of crops. Crops in farmland absorb water from the soil based on their roots. Different crops have different root depths in the soil, and their water consumption in the soil at different depths is also different. The soil moisture content needs to meet the water absorption of roots at different depths to ensure the normal growth of crops. In addition, crops have different water requirements in different growth cycles. Therefore, through scientific methods, based on soil moisture monitoring equipment, we can understand the actual water requirements of crops, make reasonable and appropriate irrigation decision-making guidance based on the water requirements of crops, which is of great value to the normal growth of crops, reasonable irrigation according to local conditions, and saving irrigation water.

[0003] For a long time, my country's agricultural irrigation has been a flood irrigation mode. Agricultural producers irrigate crops based on their own experience, pay too much attention to improving water delivery efficiency, and lack understanding of crop water requirements. This mode not only wastes water resources, but also causes serious damage or even death to plants with different water requirements due to excessive or insufficient irrigation. In order to improve this irrigation mode with an imbalance between soil water storage and crop dynamic water requirements, a scientific device and method are urgently needed to provide reasonable decision-making and guidance for irrigation. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a soil moisture monitoring device for irrigation decision-making, which can obtain real-time and dynamic soil moisture data, dynamically feedback and optimize the irrigation amount and recommended irrigation time combined with real-time soil moisture content data, provide the best irrigation efficiency, scientifically guide and control irrigation, save labor, and reduce the waste of irrigation water resources. To achieve the above purpose, the technical solution of the present invention is as follows:

[0005] A soil moisture monitoring device for providing irrigation decision-making, characterized in that it includes a main control unit, a moisture sensor unit, a communication module, a power module and a cloud data processing system;

[0006] The main control unit, the moisture sensing unit, and the power module are located in the internal structure of the tube body with closed ends. The main control unit is electrically connected to the moisture sensing unit, and the main control unit controls the moisture sensing unit to monitor soil moisture. The power module is located at the bottom of the tube body and is used to provide power support for the main control unit, the moisture sensing unit, and the communication module.

[0007] The communication module is located at the top of the tube body and is in communication connection with the main control unit, and is used to remotely transmit the data collected by the main control unit to the cloud data processing system through wireless communication. The communication module is also used to receive remote operation instructions from the cloud data processing system;

[0008] The cloud data processing system is mounted on a cloud server and includes a data storage unit and a data analysis unit;

[0009] The data storage unit is used to store data transmitted to the cloud data processing system;

[0010] The data analysis unit is configured to obtain dynamic effective water storage capacity and current effective water storage data based on monitored soil moisture data, dynamically compare the difference between the effective water storage capacity and the current effective water storage, and make an irrigation decision on irrigation duration based on the difference divided by the irrigation rate calculated from historical statistics.

[0011] Furthermore, the moisture sensing unit is a multi-depth soil moisture sensing unit.

[0012] Furthermore, the power module adopts a single lithium battery or a lithium battery pack.

[0013] According to another aspect of the present invention, a method for implementing a soil moisture monitoring device for providing irrigation decisions is provided, using the soil moisture monitoring device for providing irrigation decisions as described in any of the above technical solutions, and the implementation method comprises the following steps:

[0014] S1. Install a soil moisture monitoring device in the soil to be monitored, first obtain multi-depth soil moisture data related to the target time, location and target crop through the soil moisture monitoring device, transmit the data to the cloud data processing system, store the data and conduct data analysis;

[0015] S2. The cloud data processing system obtains the dynamic effective water storage capacity and the current effective water storage data based on the monitored soil moisture data, and performs calculations based on the measured soil moisture data to compare the difference between the dynamic effective water storage capacity and the current effective water storage capacity;

[0016] S3. When the difference reaches a predetermined value, an irrigation decision on the irrigation duration is made based on the difference divided by the irrigation rate calculated from historical statistics.

[0017] Furthermore, the dynamic effective water storage capacity is the difference between the historical highest soil moisture content and the historical lowest soil moisture content of the target crop, representing the maximum water storage space of the soil; the current effective water storage capacity is the difference between the current soil moisture content and the historical lowest soil moisture content of the target crop.

[0018] Furthermore, in step S2, when the difference is 0, the cloud data processing system also makes an irrigation reminder that appropriate irrigation has been achieved; when the difference is a negative value, the cloud data processing system also makes an irrigation reminder that the irrigation is excessive;

[0019] In step S3, when the difference reaches the predetermined value, the cloud data processing system also issues an irrigation reminder to irrigate in time.

[0020] The beneficial effects of the present invention are:

[0021] The soil moisture monitoring device and implementation method for providing irrigation decision-making of the present invention can monitor soil moisture data at multiple depths through a tubular integrated soil moisture measuring instrument device, obtain real-time and dynamic soil moisture data, and dynamically feedback and optimize the irrigation amount and recommended irrigation duration in combination with real-time soil moisture content data, thereby providing optimal irrigation efficiency, scientifically guiding and controlling irrigation, saving labor, and reducing resource waste of irrigation water. A tubular integrated soil moisture measuring instrument and calibration-free technology based on the FDR principle are used to simultaneously monitor soil moisture content at multiple depths, and the method is simple to use and convenient to install. It also supports soil moisture monitoring at the root depth of two crops, and is suitable for planting scenarios of different crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an embodiment of a soil moisture monitoring device for providing irrigation decision making according to the present invention;

[0023] Figure 2 It is a structural schematic diagram of the moisture sensing unit;

[0024] Figure 3 This is a schematic diagram of soil moisture changes after the initial installation of the soil moisture monitoring device;

[0025] Figure 4 This is a diagram of the interface of the cloud data processing system prompting you to irrigate in time;

[0026] Figure 5 This is a schematic diagram of soil moisture changes during irrigation;

[0027] Figure 6 A schematic diagram of the interface of the cloud data processing system indicating that appropriate irrigation has been achieved;

[0028] Figure 7 This is a schematic diagram of soil moisture changes under excessive irrigation conditions;

[0029] Figure 8 This is a schematic diagram of the interface of the cloud data processing system that prompts excessive irrigation. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the soil moisture monitoring device for providing irrigation decision and its implementation method of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the features in the following embodiments and embodiments can be combined with each other without conflict. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Reference Figure 1 and Figure 2 A soil moisture monitoring device for providing irrigation decision-making according to an embodiment of the present invention includes a main control unit, a moisture sensing unit (moisture sensing module), a communication module, a power module and a cloud data processing system.

[0032] The main control unit, the moisture sensing unit, and the power module are located in the internal structure of the tube body with both ends closed. The main control unit is electrically connected to the moisture sensing unit, and the main control unit controls the moisture sensing unit to monitor soil moisture. The power module is located at the bottom of the tube body and is used to provide power support for the main control unit, the moisture sensing unit (moisture sensing module), and the communication module;

[0033] The communication module is located at the top of the tube body and is connected to the main control unit for remotely transmitting the data collected by the main control unit to the cloud data processing system through wireless communication. The communication module is also used to receive remote operation instructions from the cloud data processing system. The main control unit, the moisture sensor unit (moisture sensor module), the communication module, and the power module form a soil moisture monitor for monitoring soil moisture content.

[0034] The cloud data processing system is mounted on a cloud server and includes a data storage unit and a data analysis unit. The data storage unit is used to store data transmitted to the cloud data processing system; the data analysis unit is configured to obtain dynamic effective water storage capacity and current effective water storage data based on monitored soil moisture data, compare the difference between the dynamic effective water storage capacity and the current effective water storage (i.e., the recommended irrigation amount), and obtain an irrigation decision of irrigation duration based on the difference (recommended irrigation amount) divided by the irrigation rate obtained from historical statistics.

[0035] The moisture sensing unit is a multi-depth soil moisture sensing unit. The power module uses a single lithium battery or a lithium battery pack.

[0036] In this embodiment, the moisture sensing unit is a tubular integrated structure, adopts the FDR technology principle, and can simultaneously monitor the moisture content of soil at multiple depths. The device tube body includes a main control unit, a moisture sensing unit, a communication module, and a power module. The main control unit is located in the internal structure of the tube body, and integrates a frequency control circuit and a data acquisition module.

[0037] The moisture sensing unit includes an oscillating copper ring for soil moisture frequency sensing located at multiple depths of the pipe body. The frequency control circuit (main control board) is electrically connected to the oscillating copper ring, controls the emission of the copper ring oscillation frequency, collects frequency data, and processes, analyzes and calculates the data.

[0038] The communication module is located at the top of the device, and transmits the collected data to the cloud data platform remotely through wireless communication. At the same time, it receives remote operation instructions and controls the execution of the terminal to realize remote monitoring and control of the on-site equipment. The power module is located at the bottom of the device body, and uses a single lithium battery or lithium battery pack to provide power support (power supply) for the device.

[0039] The above-mentioned soil moisture monitoring device for providing irrigation decision-making solves the problem that current agricultural irrigation relies on personal experience and cannot provide real-time guidance for irrigation decision-making in a scientific and dynamic manner, resulting in insufficient irrigation affecting crop growth, or excessive irrigation resulting in waste of water resources.

[0040] According to another aspect of the present invention, a method for implementing a soil moisture monitoring device for providing irrigation decisions is provided, using the soil moisture monitoring device for providing irrigation decisions as described in any of the above technical solutions, and the implementation method comprises the following steps:

[0041] S1. Install a soil moisture monitoring device in the soil to be monitored, first obtain multi-depth soil moisture data related to the target time, location and target crop through the soil moisture monitoring device, transmit the data to the cloud data processing system, store the data and conduct data analysis;

[0042] S2. The cloud data processing system obtains the dynamic effective water storage capacity and the current effective water storage data based on the monitored soil moisture data, and performs calculations based on the measured soil moisture data to compare the difference between the dynamic effective water storage capacity and the current effective water storage capacity;

[0043] S3. When the difference reaches a predetermined value, the cloud data processing system makes an irrigation decision on the irrigation duration based on the difference divided by the irrigation rate calculated from historical statistics.

[0044] In this embodiment, the dynamic effective water storage capacity is the difference between the historical maximum soil moisture content and the historical minimum soil moisture content of the target crop, representing the maximum water storage space of the soil; the current effective water storage capacity is the difference between the current soil moisture content and the historical minimum soil moisture content of the target crop. The historical maximum soil moisture content of the target crop is the highest soil moisture content of the target crop calculated historically, and the historical minimum soil moisture content of the target crop is the lowest soil moisture content of the target crop calculated historically.

[0045] First, multi-depth soil moisture data related to the target time, location and target crop are obtained through a soil moisture monitor, and the data is transmitted to a cloud data processing system for data storage and data analysis.

[0046] Based on the monitored soil moisture data, the dynamic effective water storage capacity and current effective water storage data are obtained. The dynamic soil effective storage capacity is obtained by the difference between the highest soil moisture content in history and the lowest soil moisture content in history, representing the maximum water storage space of the soil. The current effective water storage capacity is the difference between the current soil moisture content and the lowest soil moisture content in history.

[0047] The reason why it is dynamic is that with the changes in the growth requirements of different types of crops and at different stages, the effective water storage capacity and effective water storage volume of the soil are also in dynamic change.

[0048] The soil moisture monitoring device is used to obtain the dynamic effective water storage capacity of the soil, and the soil moisture data measured at a certain moment is used for calculation. The difference between the effective water storage capacity and the current effective water storage capacity is dynamically compared, which is the recommended irrigation amount. The recommended irrigation amount can be converted into irrigation time by dividing the irrigation rate calculated from historical statistics. The irrigation amount and the recommended irrigation time are combined with the real-time soil moisture content data for dynamic feedback and optimization, providing the best irrigation efficiency, scientifically guiding and controlling irrigation, saving labor, and reducing the waste of irrigation water.

[0049] Preferably, in step S2, when the difference is 0, the cloud data processing system can also make an irrigation reminder that appropriate irrigation has been achieved; when the difference is a negative value, the cloud data processing system can also make an irrigation reminder that irrigation is excessive. In step S3, when the difference reaches the predetermined value, the cloud data processing system can also make an irrigation reminder to irrigate in time.

[0050] The soil moisture monitoring device of the present invention can simultaneously support multi-depth soil moisture sensing, and the implementation of irrigation decision-making depends on the monitored soil moisture data. At the same time, the soil moisture information of the vertical profile of the soil is obtained through multi-depth soil moisture sensing, and the irrigation decision depends on the monitored soil moisture data. By optimizing the irrigation opportunity and irrigation time, it provides guidance for irrigation decision-making.

[0051] Embodiment 1

[0052] like Figure 1 and Figure 2As shown, in this implementation case, a tubular intelligent soil moisture monitor model LY-SM40N2 is used. It is a tubular integrated structure. The device does not require soil calibration and can be used after installation. The device supports soil moisture monitoring at the root depth of two crops. When the surface is at the "Ⅰ" mark on the tube body during installation, soil moisture monitoring at depths of 10cm and 30cm can be achieved simultaneously; when the surface is at the "Ⅱ" mark on the tube body during installation, soil moisture monitoring at depths of 20cm and 40cm can be achieved simultaneously.

[0053] like Figure 3 As shown, Figure 3 This is a graph of soil moisture changes after the initial installation of the soil moisture monitoring device. After the device was installed, the monitored soil moisture content increased suddenly. The current shallow (10cm) soil moisture data is 7.39%, and the deep (30cm) soil moisture data is 8.68%. Figure 3 The upper horizontal line represents the deep layer (30 cm), and the lower horizontal line represents the shallow layer (10 cm).

[0054] After analyzing the data, the cloud data analysis system determines that the current effective soil moisture content is far lower than the crop water requirement, and recommends that users irrigate in time. For details of the prompt interface, see the attached Figure 4 , then the user can irrigate according to the irrigation prompts.

[0055] like Figure 5 As shown, after irrigation, the shallow soil moisture content increased rapidly to 18.79%, and the deep soil moisture content increased to 21.06%. Figure 5 The upper horizontal line represents the deep layer (30 cm), and the lower horizontal line represents the shallow layer (10 cm).

[0056] The cloud data analysis system analyzes the data and evaluates that the current effective soil moisture content has reached the crop water requirement. You can see that the user interface is like this: Figure 6 As shown, the user will receive a message that the appropriate irrigation has been reached, and the user will be reminded to stop irrigation in time.

[0057] If you continue to irrigate at this time, Figure 7 As shown, the current shallow soil moisture content reaches 30.02% and the deep soil moisture content reaches 29.1%. Figure 7 The upper horizontal line represents the deep layer (30cm), and the lower horizontal line represents the shallow layer (10cm). The cloud data analysis system analyzes the current data and evaluates that the current effective soil moisture content has exceeded the crop water requirement. The user will receive an over-irrigation reminder. Figure 8 shown.

[0058] This implementation case provides data monitored by the LY-SM40N2 tube-type intelligent soil moisture monitor, analyzes the data through the data platform, and provides dynamic irrigation decision guidance. Through real-time soil moisture monitoring, dynamic irrigation feedback is established to achieve precise irrigation control.

[0059] The above embodiments provide a soil moisture monitoring device for irrigation decision-making and its implementation method, monitor multi-depth soil moisture data through a tubular integrated soil moisture measuring instrument device, obtain real-time and dynamic soil moisture data, and dynamically feedback and optimize the irrigation amount and recommended irrigation time in combination with real-time soil moisture content data to provide optimal irrigation efficiency, scientifically guide and control irrigation, save labor, and reduce resource waste of irrigation water. A tubular integrated soil moisture measuring instrument is used, and the calibration-free technology based on the FDR principle can realize simultaneous monitoring of soil moisture content at multiple depths. It is simple to use and easy to install. It supports soil moisture monitoring at two root depths of crops at the same time, and is suitable for planting scenarios of different crops. By monitoring the moisture content at different soil depths, analysis and judgment are performed based on the collected data, thereby providing guidance for irrigation decisions.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and any equivalent implementation methods or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for implementing a soil moisture monitoring device for providing irrigation decision-making, characterized in that: The soil moisture monitoring device for providing irrigation decisions includes a main control unit, a moisture sensor unit, a communication module, a power module and a cloud data processing system; The main control unit, the moisture sensing unit, and the power module are located in the internal structure of the tube body with closed ends. The main control unit is electrically connected to the moisture sensing unit, and the main control unit controls the moisture sensing unit to monitor soil moisture. The power module is located at the bottom of the tube body and is used to provide power support for the main control unit, the moisture sensing unit, and the communication module. The communication module is located at the top of the tube body and is in communication connection with the main control unit, and is used to remotely transmit the data collected by the main control unit to the cloud data processing system through wireless communication. The communication module is also used to receive remote operation instructions from the cloud data processing system; The cloud data processing system is mounted on a cloud server and includes a data storage unit and a data analysis unit; The data storage unit is used to store data transmitted to the cloud data processing system; The data analysis unit is configured to obtain dynamic effective water storage capacity and current effective water storage data based on the monitored soil moisture data, compare the difference between the dynamic effective water storage capacity and the current effective water storage, and obtain an irrigation decision of irrigation duration based on the difference divided by the irrigation rate obtained by historical statistics; The implementation method includes the following steps: S1. Install a soil moisture monitoring device in the soil to be monitored, first obtain multi-depth soil moisture data related to the target time, location and target crop through the soil moisture monitoring device, transmit the data to the cloud data processing system, store the data and conduct data analysis; S2. The cloud data processing system obtains the dynamic effective water storage capacity and the current effective water storage data based on the monitored soil moisture data, and performs calculations based on the measured soil moisture data to compare the difference between the dynamic effective water storage capacity and the current effective water storage capacity; S3. When the difference reaches a predetermined value, an irrigation decision of irrigation duration is obtained by dividing the difference by the irrigation rate calculated from historical statistics; In step S2, when the difference is 0, the cloud data processing system also makes an irrigation reminder that the appropriate irrigation has been achieved; when the difference is a negative value, the cloud data processing system also makes an irrigation reminder that the irrigation is excessive; In step S3, when the difference reaches the predetermined value, the cloud data processing system also issues an irrigation reminder to irrigate in time.

2. The method for implementing the soil moisture monitoring device for providing irrigation decision according to claim 1, characterized in that: The dynamic effective water storage capacity is the difference between the historical highest soil moisture content and the historical lowest soil moisture content of the target crop, representing the maximum water storage space of the soil; the current effective water storage capacity is the difference between the current soil moisture content and the historical lowest soil moisture content of the target crop.

3. The method for implementing the soil moisture monitoring device for providing irrigation decision according to claim 1 or 2, characterized in that: The moisture sensing unit is a multi-depth soil moisture sensing unit.

4. The method for implementing the soil moisture monitoring device for providing irrigation decision according to claim 1 or 2, characterized in that: The power module adopts a single lithium battery or a lithium battery pack.

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