Integrated near-infrared soil moisture content monitoring module and application method

Abstract

The invention discloses an integrated near-infrared soil moisture content monitoring module and an application method, and relates to the technical field of agricultural meteorological observation instruments and equipment.According to the technical scheme, an integrated calibration module is arranged, and a first near-infrared sensor and a second near-infrared sensor are arranged in the integrated calibration module; the first near-infrared sensor is used for receiving a near-infrared light signal emitted by a target object to be detected and outputting an electric signal corresponding to the near-infrared light signal; the second near-infrared sensor is used for receiving a near-infrared light signal emitted by the target object to be detected and outputting an electric signal corresponding to the near-infrared light signal. The soil moisture detection device has the beneficial effects that the two near-infrared sensors are used for detecting the near-infrared light signals emitted by the target object so as to analyze and judge the moisture content of the target object, so that the moisture content information of the target object can be conveniently and quickly obtained, and the effects of improving the soil moisture detection efficiency and reducing the labor cost are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural meteorological observation instruments and equipment, and in particular to an integrated near-infrared soil moisture monitoring module and an application method thereof. Background Art

[0002] Soil moisture content is one of the important factors affecting crop growth and is of great significance in agricultural production. At present, soil moisture content is mainly measured by traditional methods such as manual pit digging, drying method, and capacitance method. These methods have problems such as complex operation and long time consumption. Most existing soil moisture sensors use the resistivity principle to measure soil moisture content, but this method is easily affected by factors such as soil type and salt concentration, resulting in inaccurate measurement results. In addition, existing soil moisture sensors are large in size, difficult to carry and install, and are not conducive to large-scale promotion and use.

[0003] Therefore, there is an urgent need to provide a soil moisture sensor that can quickly and accurately measure soil moisture content and is easy to carry and use, and an application method thereof. Summary of the invention

[0004] In order to achieve the above-mentioned purpose of the invention and to address the above-mentioned technical problems, the present invention provides an integrated near-infrared soil moisture monitoring module and an application method.

[0005] The technical solution is:

[0006] An integrated near-infrared soil moisture monitoring module includes an integrated calibration module, wherein a first near-infrared sensor and a second near-infrared sensor are arranged in the integrated calibration module, wherein the first near-infrared sensor is used to receive a near-infrared light signal emitted by a target object to be measured, and output an electrical signal corresponding to the near-infrared light signal; and the second near-infrared sensor is used to receive a near-infrared light signal emitted by the target object to be measured, and output an electrical signal corresponding to the near-infrared light signal.

[0007] It also includes: splitting the integrated calibration module into two parts, one part is only provided with the first near-infrared sensor, and the other part is only provided with the second near-infrared sensor.

[0008] At least one fixing member is arranged on the integrated calibration module, and the fixing member is used to fix the target object to be measured on the integrated calibration module.

[0009] A display screen is provided on the integrated calibration module, and the display screen is used to display the moisture content of the target object to be measured.

[0010] A communication interface is provided on the integrated calibration module, and the communication interface is used to transmit the moisture content of the target object to be measured to an external terminal.

[0011] Application method based on integrated near-infrared soil moisture monitoring module:

[0012] The distance between the first near infrared sensor and the second near infrared sensor is set to a value L, and the near infrared light signal emitted by the target object to be detected is a near infrared light signal emitted from any point between the first near infrared sensor and the second near infrared sensor;

[0013] In the initial state, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded respectively; after the target object to be measured is placed on the integrated calibration module, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded again respectively; if the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are the same as the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, it is determined that the moisture content of the target object to be measured is zero.

[0014] If the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are different from the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object to be measured is non-zero.

[0015] If the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are different from the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, the ratio of the difference between the electrical signal output by the first near-infrared sensor and the electrical signal output by the second near-infrared sensor recorded for the second time to the difference between the electrical signal output by the first near-infrared sensor and the electrical signal output by the second near-infrared sensor recorded for the first time is calculated to obtain the ratio V; wherein the ratio V is the moisture content of the target object.

[0016] On the other hand, an embodiment of the present application further provides a computer storage medium, including program instructions, which, when executed by a processor, enables the processor to execute an integrated near-infrared soil moisture monitoring module and application method as described above.

[0017] On the other hand, an embodiment of the present application further provides a computer program product. When the computer program product is read and executed by a computer, the computer executes an integrated near-infrared soil moisture monitoring module and application method as described above.

[0018] The technical solution provided by the embodiment of the present invention has the following beneficial effects: by setting an integrated calibration module, a first near-infrared sensor and a second near-infrared sensor are arranged in the integrated calibration module, the first near-infrared sensor is used to receive the near-infrared light signal emitted by the target to be measured, and output an electrical signal corresponding to the near-infrared light signal; the second near-infrared sensor is used to receive the near-infrared light signal emitted by the target to be measured, and output an electrical signal corresponding to the near-infrared light signal; wherein, the distance between the first near-infrared sensor and the second near-infrared sensor is set to a value L, and the near-infrared light signal emitted by the target to be measured is a near-infrared light signal emitted from any point between the first near-infrared sensor and the second near-infrared sensor; in an initial state, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded respectively; after the target to be measured is placed on the integrated calibration module, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded again respectively; if the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are the same as the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, it is determined that the moisture content of the target to be measured is zero. This method uses two near-infrared sensors to detect the near-infrared light signals emitted by the target object to analyze and judge the moisture content of the target object, so that the moisture content information of the target object can be obtained conveniently and quickly, thereby achieving the effect of improving soil moisture testing efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of an integrated near-infrared soil moisture monitoring module and application method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0024] First, the nouns or terms involved in the technical solution of this application are explained:

[0025] Near Infrared Spectroscopy (NIR) is an analytical method that uses the characteristics of the spectrum produced by the absorption of electromagnetic radiation of different bands by the vibration, rotation and electronic energy level transition of the molecules of the substance to characterize the physical and chemical properties such as the composition, structure and purity of the substance. NIR spectrum usually refers to the wavelength range of 780nm to 2526nm. Since this area is outside the visible spectrum (400nm to 780nm), it is called near infrared spectrum.

[0026] Soil moisture refers to the condition of soil moisture, also known as soil moisture condition. It is generally expressed as the percentage of soil moisture content to field water holding capacity. It is a relative indicator reflecting the tightness of soil moisture. It is one of the basic parameters for studying farmland moisture problems and is also a commonly used parameter in agricultural research. Soil moisture refers to the amount of water contained in a soil layer at a certain depth, also known as soil moisture. It is one of the most basic physical properties of soil and plays an extremely important role in the normal growth and development of plants.

[0027] Example 1

[0028] See also Figure 1 The present invention provides an integrated near-infrared soil moisture monitoring module and an application method, the method comprising the following steps:

[0029] Step S11, setting an integrated calibration module, wherein a first near-infrared sensor and a second near-infrared sensor are provided in the integrated calibration module, wherein the first near-infrared sensor is used to receive a near-infrared light signal emitted by a target object to be measured, and output an electrical signal corresponding to the near-infrared light signal; and the second near-infrared sensor is used to receive a near-infrared light signal emitted by a target object to be measured, and output an electrical signal corresponding to the near-infrared light signal.

[0030] The distance between the first near infrared sensor and the second near infrared sensor is set to a value L, and the near infrared light signal emitted by the target object to be measured is a near infrared light signal emitted from any point between the first near infrared sensor and the second near infrared sensor;

[0031] Step S12: in the initial state, respectively recording the electrical signals output by the first near infrared sensor and the second near infrared sensor;

[0032] Step S13, after the target object to be measured is placed on the integrated calibration module, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are respectively recorded again;

[0033] Step S14: If the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are the same as the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object is zero.

[0034] Further, if the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are different from the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object to be measured is non-zero.

[0035] Further, if the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are different from the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, the ratio of the difference between the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time and the difference between the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time is calculated to obtain a ratio V;

[0036] The ratio V is the moisture content of the target object.

[0037] It should be noted that the distance setting value L of the first near infrared sensor and the second near infrared sensor in the integrated calibration module can be adjusted according to actual needs, for example, it can be set to 1 cm, 2 cm, 3 cm, etc. In addition, the first near infrared sensor and the second near infrared sensor can also be called a near infrared spectrometer, which can be composed of a plurality of narrow band filters, each filter corresponding to a different wavelength range, for selectively filtering out light of a desired wavelength range.

[0038] In actual application scenarios, the user can hold the integrated calibration module, place it above the target to be measured, and then turn on the first near-infrared sensor and the second near-infrared sensor to start working. At this time, the first near-infrared sensor and the second near-infrared sensor will receive the near-infrared light signal emitted by the target to be measured and output the corresponding electrical signal. If the moisture content of the target to be measured is zero, the two recorded electrical signals should be the same, otherwise they are different. The user can determine the moisture content of the target to be measured by comparing whether the two recorded electrical signals are the same.

[0039] Example 2

[0040] The present application embodiment provides an integrated near-infrared soil moisture monitoring module and application method, specifically, Figure 1 As shown, the method comprises the following steps:

[0041] Step S21, setting an integrated calibration module, wherein a first near-infrared sensor and a second near-infrared sensor are provided in the integrated calibration module, wherein the first near-infrared sensor is used to receive a near-infrared light signal emitted by the target object to be measured, and output an electrical signal corresponding to the near-infrared light signal; and the second near-infrared sensor is used to receive a near-infrared light signal emitted by the target object to be measured, and output an electrical signal corresponding to the near-infrared light signal.

[0042] The distance between the first near infrared sensor and the second near infrared sensor is set to a value L, and the near infrared light signal emitted by the target object to be measured is a near infrared light signal emitted from any point between the first near infrared sensor and the second near infrared sensor;

[0043] Step S22, in the initial state, respectively recording the electrical signals output by the first near infrared sensor and the second near infrared sensor;

[0044] Step S23, after the target object to be measured is placed on the integrated calibration module, the electrical signals output by the first near infrared sensor and the second near infrared sensor are respectively recorded again;

[0045] Step S24: If the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are the same as the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object is zero.

[0046] Further, if the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are different from the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object to be measured is non-zero.

[0047] Further, if the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are different from the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, the ratio of the difference between the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time and the difference between the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time is calculated to obtain a ratio V;

[0048] The ratio V is the moisture content of the target object.

[0049] It should be noted that the distance setting value L of the first near infrared sensor and the second near infrared sensor in the integrated calibration module can be adjusted according to actual needs, for example, it can be set to 1 cm, 2 cm, 3 cm, etc. In addition, the first near infrared sensor and the second near infrared sensor can also be called a near infrared spectrometer, which can be composed of a plurality of narrow band filters, each filter corresponding to a different wavelength range, for selectively filtering out light of a desired wavelength range.

[0050] In actual application scenarios, the user can hold the integrated calibration module, place it above the target to be measured, and then turn on the first near-infrared sensor and the second near-infrared sensor to start working. At this time, the first near-infrared sensor and the second near-infrared sensor will receive the near-infrared light signal emitted by the target to be measured and output the corresponding electrical signal. If the moisture content of the target to be measured is zero, the two recorded electrical signals should be the same, otherwise they are different. The user can determine the moisture content of the target to be measured by comparing whether the two recorded electrical signals are the same.

[0051] Furthermore, the integrated calibration module is split into two parts, one part is only provided with the first near-infrared sensor, and the other part is only provided with the second near-infrared sensor.

[0052] It should be noted that the splitting of the integrated calibration module is to adapt to different measurement scenarios. For example, in some cases, only a single near-infrared sensor may be needed to complete the measurement task, while in some cases, two near-infrared sensors need to be used simultaneously to ensure measurement accuracy. Therefore, by splitting the integrated calibration module, the entire measurement system can be more flexible and applicable.

[0053] Furthermore, at least one fixing member is provided on the integrated calibration module, and the fixing member is used to fix the target object to be measured on the integrated calibration module.

[0054] It should be noted that the function of the fixing part is to stably fix the target object to be measured on the integrated calibration module to prevent its movement or shaking causing measurement errors. Common fixing parts include clamps, screws, adhesives, etc., which can be flexibly selected according to actual conditions.

[0055] Furthermore, a display screen is provided on the integrated calibration module, and the display screen is used to display the moisture content of the target object to be measured.

[0056] It should be noted that the function of the display screen is to display the moisture content of the target object in real time after the measurement is completed, so as to help users quickly understand the measurement results. Common display screens include LCD screens, LED screens, OLED screens, etc., and the appropriate model and specifications can be selected according to actual needs.

[0057] Furthermore, a communication interface is provided on the integrated calibration module, and the communication interface is used to transmit the moisture content of the target object to be measured to an external terminal.

[0058] It should be noted that the function of the communication interface is to transmit the moisture content of the target object to be measured to an external terminal for subsequent processing and analysis. Common communication interfaces include USB interface, RS232 interface, Wi-Fi interface, etc., which can be flexibly selected according to actual conditions.

[0059] In summary, an integrated near-infrared soil moisture monitoring module and an application method provided by an embodiment of the present application are provided. An integrated calibration module is provided, and a first near-infrared sensor and a second near-infrared sensor are provided in the integrated calibration module. The first near-infrared sensor is used to receive the near-infrared light signal emitted by the target to be measured, and output an electrical signal corresponding to the near-infrared light signal; the second near-infrared sensor is used to receive the near-infrared light signal emitted by the target to be measured, and output an electrical signal corresponding to the near-infrared light signal; wherein the distance between the first near-infrared sensor and the second near-infrared sensor is set to a value L, and the near-infrared light signal emitted by the target to be measured is a near-infrared light signal emitted from any point between the first near-infrared sensor and the second near-infrared sensor; in an initial state, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded respectively; after the target to be measured is placed on the integrated calibration module, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded again respectively; if the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are the same as the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, it is determined that the moisture content of the target to be measured is zero. This method uses two near-infrared sensors to detect the near-infrared light signals emitted by the target object to analyze and judge the moisture content of the target object, so that the moisture content information of the target object can be obtained conveniently and quickly, thereby achieving the effect of improving soil moisture testing efficiency and reducing labor costs.

[0060] Example 3

[0061] An embodiment of the present application also provides a computer storage medium, including program instructions. When the program instructions are executed by a processor, the processor executes an integrated near-infrared soil moisture monitoring module and application method as described in Example 1 or Example 2 above.

[0062] Example 4

[0063] The embodiment of the present application also provides a computer program product. When the computer program product is read and executed by a computer, the computer executes an integrated near-infrared soil moisture monitoring module and application method as described in the above embodiment 1 or embodiment 2.

[0064] The embodiment of the present application also provides a computer program. When the computer program is executed by a computer, it enables the computer to execute an integrated near-infrared soil moisture monitoring module and application method as described in Example 1 or Example 2.

[0065] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0066] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated near-infrared soil moisture monitoring module, characterized in that: It includes an integrated calibration module, in which a first near-infrared sensor and a second near-infrared sensor are arranged. The first near-infrared sensor is used to receive a near-infrared light signal emitted by a target object to be measured, and output an electrical signal corresponding to the near-infrared light signal; the second near-infrared sensor is used to receive a near-infrared light signal emitted by the target object to be measured, and output an electrical signal corresponding to the near-infrared light signal.

2. The integrated near-infrared soil moisture monitoring module according to claim 1, characterized in that: Also includes: The integrated calibration module is split into two parts, one part is only provided with the first near-infrared sensor, and the other part is only provided with the second near-infrared sensor.

3. The integrated near-infrared soil moisture monitoring module according to claim 2, characterized in that: At least one fixing member is arranged on the integrated calibration module, and the fixing member is used to fix the target object to be measured on the integrated calibration module.

4. The integrated near-infrared soil moisture monitoring module according to claim 3 is characterized in that: A display screen is provided on the integrated calibration module, and the display screen is used to display the moisture content of the target object to be measured.

5. The integrated near-infrared soil moisture monitoring module according to claim 4, characterized in that: A communication interface is provided on the integrated calibration module, and the communication interface is used to transmit the moisture content of the target object to be measured to an external terminal.

6. The application method of the integrated near-infrared soil moisture monitoring module according to claim 1 is characterized in that: The distance between the first near infrared sensor and the second near infrared sensor is set to a value L, and the near infrared light signal emitted by the target object to be detected is a near infrared light signal emitted from any point between the first near infrared sensor and the second near infrared sensor; In an initial state, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded respectively; after the target object to be measured is placed on the integrated calibration module, the electrical signals output by the first near-infrared sensor and the second near-infrared sensor are recorded again respectively; If the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are the same as the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object is zero.

7. The application method of the integrated near-infrared soil moisture monitoring module according to claim 6 is characterized in that: If the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the second time are different from the electrical signals output by the first near infrared sensor and the second near infrared sensor recorded for the first time, it is determined that the moisture content of the target object to be measured is non-zero.

8. The application method of the integrated near-infrared soil moisture monitoring module according to claim 7 is characterized in that: If the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the second time are different from the electrical signals output by the first near-infrared sensor and the second near-infrared sensor recorded for the first time, the ratio of the difference between the electrical signal output by the first near-infrared sensor and the electrical signal output by the second near-infrared sensor recorded for the second time to the difference between the electrical signal output by the first near-infrared sensor and the electrical signal output by the second near-infrared sensor recorded for the first time is calculated to obtain the ratio V; wherein the ratio V is the moisture content of the target object.

9. A computer storage medium, characterized in that It includes program instructions. When the program instructions are executed by a processor, the processor executes an integrated near-infrared soil moisture monitoring module and application method as described in any one of claims 1-8.

10. A computer program product, characterized in that When the computer program product is read and executed by a computer, the computer executes an integrated near-infrared soil moisture monitoring module and application method as described in any one of claims 1 to 8.

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