Plant runoff measuring device

Abstract

The utility model relates to the technical field of flow measurement, and provides a plant runoff measuring device which comprises a shell, a detection assembly and a controller, the shell is provided with a containing cavity, and openings are formed in the two ends of the containing cavity; the detection assembly is arranged in the containing cavity, the detection assembly is connected with the inner wall face of the containing cavity, the detection assembly is provided with an adjustable annular space, and the adjustable annular space is used for wrapping stalks; the detection assembly is used for obtaining the temperature difference of stalks; the detection assembly is electrically connected with the controller, and the controller determines the runoff of the stalks based on the temperature difference obtained by the detection assembly. The detection assembly is arranged in the containing cavity, the detection assembly is provided with the adjustable annular arrangement space, the device can flexibly adapt to stalks with different diameters, temperature difference information of the surfaces of the stalks is obtained in real time, and the runoff condition of the plant stalks is calculated based on the data. The device has good stability and strong adaptability, can be used in various environments, and meets the requirements of different plant varieties and growth stages.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow measurement technical field especially relates to a plant runoff measuring device. BACKGROUND

[0002] Water is an essential factor for plant growth, when the soil liquid water enters the plant body through the root system, it is transported upward to various plant organs through the stem xylem conduit until the canopy, and finally diffused into the atmosphere by the leaf stomata transpiration. In this process, the most direct and accurate index to evaluate the plant water transport capacity is the stem sap flow, also known as the stem flow. By studying the stem flow of plants, the transmission mode of plants to water and nutrients can be analyzed more deeply, so as to better guide people to effectively regulate the growth of plants to improve the efficiency of agricultural production.

[0003] The existing plant stem flow sensor mainly relies on the principles of heat balance method, heat pulse method and heat diffusion method to realize measurement. The heat balance method calculates the liquid flow rate by heating the local stem and monitoring the temperature change; the heat pulse method calculates the liquid flow velocity by using the propagation characteristics of instantaneous heat pulse in the stem; the heat diffusion method analyzes the correlation between temperature gradient and liquid flow heat dissipation.

[0004] However, the plant stem continues to thicken during the growth process, and when the traditional sensor is used to monitor the stem for a long time by penetrating the stem with a fixed tube or probe, the radial growth of the stem will damage the coupling state of the sensor and the stem, causing the fixed tube or probe to loosen outward, resulting in attenuation or distortion of the measurement signal. The built-in heating source and temperature sensitive module of the sensor are directly exposed to the external environment of the stem, and the working temperature is easily disturbed by external factors such as light, air flow, day and night temperature difference, etc., resulting in fluctuation of the heat balance state, reducing the measurement signal-to-noise ratio and long-term stability. In addition, the existing sensor is difficult to realize long-term continuous monitoring under complex climate conditions in the field, and has insufficient adaptability to plants with different stem diameters (such as the same crop at the seedling stage and the mature stage), which limits its universal application in agricultural production and plant physiology research. UTILITY MODEL CONTENT

[0005] The utility model provides a plant runoff measuring device to solve the problems that the plant runoff measuring device in the prior art is difficult to realize long-term continuous monitoring, and has insufficient adaptability to plants with different stem diameters.

[0006] The utility model provides a kind of plant runoff measuring device, comprising: shell, with containing cavity, the both ends of the containing cavity are equipped with opening;Detection component, be in the containing cavity, the detection component with the inner wall surface of the containing cavity is connected, the detection component has adjustable ring space, and the adjustable ring space is used to wrap stem;The detection component is used to obtain the temperature difference of stem;Controller, the detection component with the controller is electrically connected, the temperature difference based on the detection component obtained, determines the runoff of the stem.

[0007] According to the plant runoff measuring device provided by the utility model, two first fixing members are further included, and the two first fixing members are arranged at intervals along the axial direction of the containing cavity.

[0008] According to the plant runoff measuring device provided by the utility model, two first elastic members are further included, and the bottom surface of each first fixing member is connected to the inner wall surface of the containing cavity through the first elastic member.

[0009] According to the plant runoff measuring device provided by the utility model, two second elastic members are further included, and the side, away from each other, of the two first fixing members is provided with the second elastic member.

[0010] According to the plant runoff measuring device provided by the utility model, the detection component further includes a heating member, and the plant runoff measuring device further includes a second fixing member.

[0011] According to the plant runoff measuring device provided by the utility model, the heating member includes a second spool and a heating sheet, the heating sheet is wound on the second spool, the second fixing member is provided with a second channel, the free end of the heating sheet is connected to the second fixing member through the second channel, to form a second adjustable ring space, and the second adjustable ring space is coaxial with the first adjustable ring space.

[0012] The plant runoff measuring device further comprises a third elastic member, and the bottom surface of the second fixing member is connected with the inner wall surface of the accommodating cavity through the third elastic member.

[0013] The plant runoff measuring device further comprises an adjusting member, which is connected with the heating member and used for adjusting the heating power of the heating member.

[0014] The plant runoff measuring device further comprises a plant physiological monitoring module, which is electrically connected with the controller.

[0015] The plant runoff measuring device further comprises an irrigation module, which is electrically connected with the controller, and the controller controls the operation of the irrigation module based on the data information obtained by the detection assembly and the plant physiological monitoring module.

[0016] The plant runoff measuring device has good stability and strong adaptability, can be used in various environments, and meets the needs of different plant varieties and growth stages. At the same time, through accurate temperature difference measurement and efficient data transmission, the stability and reliability in the measurement process are ensured, accurate monitoring data can be provided for a long time, and the continuous operation and performance of the system are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is the internal structure schematic view of the plant runoff measuring device provided by the present application.

[0019] Figure 2 is the front view provided by the present application. Figure 1

[0020] Figure 3 is the structure schematic view of the temperature difference measuring member provided by the present application.

[0021] Figure 4 is the structure schematic view of the detection assembly installed on the fixing member provided by the present application.​

[0022] Figure 5 is a structural schematic view of the detection assembly provided by the utility model.

[0023] Figure 6 is a front view of the plant runoff measuring device provided by the utility model.

[0024] Figure 7 is a top view of the plant runoff measuring device provided by the utility model.

[0025] Figure 8 is a control principle diagram of the plant runoff measuring device provided by the utility model.

[0026] Figure 9 is an operation flowchart of the plant runoff measuring device provided by the utility model.

[0027] Reference signs:

[0028] 10, shell; 11, containing cavity; 12, first shell; 121, first clamping arm; 13, second shell; 131, second clamping arm; 14, wire hole;

[0029] 21, first fixing part; 22, second fixing part;

[0030] 30, detection assembly; 31, temperature difference measuring part; 311, first reel; 312, temperature difference measuring sheet; 32, heating part; 33, first wire; 34, second wire; 35, adjustable ring setting space; 351, first adjustable ring setting space; 352, second adjustable ring setting space;

[0031] 40, first elastic part; 50, second elastic part; 60, third elastic part;

[0032] 70, power module; 80, adjusting part; 90, controller; 91, signal acquisition part; 100, sealing part; 110, stem; 120, plant physiology monitoring module. DETAILED DESCRIPTION

[0033] In order that the objects, technical solutions and advantages of the utility model are more clear, the technical solutions in the utility model will be clearly and completely described below in combination with the drawings in the utility model. Obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "center", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the embodiments of the present application.

[0036] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0037] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation on the present application.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to the same reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the applicability of other processes and / or the use of other materials.

[0039] The following will be described in detail Figures 1-9 The plant runoff measuring device of the present application is described.

[0040] The plant runoff measuring device provided in this embodiment of the utility model includes a housing 10, a detection component 30, and a controller 90.

[0041] The shell 10 has a receiving cavity 11, with openings at both ends of the receiving cavity 11 to allow the plant stem 110 to freely pass through both ends of the receiving cavity 11, such as... Figure 6 As shown. In one embodiment, the housing 10 includes a first housing 12 and a second housing 13, which are joined together to form a receiving cavity 11. For ease of installation, the first housing 12 is provided with a first clamping arm 121, and the second housing 13 is provided with a second clamping arm 131, as shown. Figure 7 As shown, the first clamping arm 121 and the second clamping arm 131 are detachably connected for easy installation. In one embodiment, one of the first clamping arm 121 and the second clamping arm 131 is provided with a slot, and the other is provided with a locking block, such as... Figure 1 As shown, the locking block can be inserted into the slot, thereby firmly connecting the first housing 12 and the second housing 13. This connection method not only allows for quick installation and disassembly but also ensures that the housing 10 is not easily loosened during use.

[0042] like Figure 1 As shown, the detection component 30 is used to acquire the temperature difference of the stem 110. The detection component 30 is also located within the receiving cavity 11, connected to the inner wall of the cavity 11. The detection component 30 has an adjustable annular space 35, which is used to wrap the stem 110, enabling it to wrap plant stems 110 of different shapes and sizes without damage and for extended periods, ensuring the stability and reliability of the measurement process. In one embodiment, the detection component 30 is an elastic annular member, with its inner wall surface fitting against the outer wall surface of the stem 110. When the diameter of the stem 110 changes, the elastic annular member enlarges accordingly, adapting to the growth of the stem 110. It should be noted that during the growth process, the plant stem 110 gradually thickens from its initial state, and there is no need to consider whether the elastic annular member deforms after rebounding. In actual installation, one end of the detection component 30 is connected to the inner wall of the receiving cavity 11, and the other end of the detection component 30 is fixed to the inner wall of the receiving cavity 11 after wrapping around the axial direction of the plant stem 110 once. Due to the properties of the elastic ring, this design ensures that the detection component 30 can always fit against the outer surface of the stem 110 during the growth process of the stem 110, thus guaranteeing accurate measurement of temperature difference.

[0043] Further, the detection assembly 30 is electrically connected with the controller 90, the detection assembly 30 obtains the temperature difference information of each section and transmits the temperature difference information to the controller 90, the controller 90 stores a calculation model of the stemflow, and based on the temperature difference information obtained by the detection assembly 30, the controller 90 can accurately calculate the stemflow of the plant stem 110. It should be noted that the stemflow calculation model considers the changes of different plant species, stem 110 diameters and growth stages, so accurate measurement and analysis can be performed under various conditions. In an embodiment, the accommodation cavity 11 is provided with a signal acquisition piece 91, the detection assembly 30 is electrically connected with the signal acquisition piece 91, and the signal acquisition piece 91 is connected with the controller 90 to realize information transmission.

[0044] The plant stemflow measurement device provided by the embodiment of the utility model, through setting the detection assembly 30 in the accommodation cavity 11, the detection assembly 30 has the adjustable ring space 35, can flexibly adapt to the stem 110 of different diameters, obtains the temperature difference information of the surface of the stem 110 in real time, and calculates the stemflow of the plant stem 110 based on the data. The device has good stability and strong adaptability, can be used in various environments, meets the needs of different plant varieties and growth stages. At the same time, through accurate temperature difference measurement and efficient data transmission, the stability and reliability in the measurement process are ensured, accurate monitoring data can be provided for a long time, and the continuous operation and performance of the system are ensured.

[0045] In an embodiment, the plant stemflow measurement device further comprises a sealing piece 100 for sealing the accommodation cavity 11 and protecting the detection assembly 30 in the accommodation cavity 11 from external environment interference. In an embodiment, the openings at both ends of the accommodation cavity 11 are provided with the sealing piece 100, the sealing piece 100 is located between the inner wall surface of the accommodation cavity 11 and the outer wall surface of the stem 110 to realize sealing, prevent water or other pollutants from entering the accommodation cavity 11 and affecting the measurement accuracy of the detection assembly 30. In another embodiment, the openings at both ends of the accommodation cavity 11 are provided with the sealing piece 100, the sealing piece 100 is annularly arranged on the outer periphery of the plant stem 110, and the bottom of the sealing piece 100 is connected with the shell 10, so that the sealing effect can be better realized, the environment in the accommodation cavity 11 can be ensured to be stable, external water or pollutants can be prevented from entering, and the durability and measurement stability of the device can be further improved. The sealing piece 100 comprises rubber.

[0046] In an embodiment, the plant stemflow measurement device further comprises two first fixing pieces 21, the two first fixing pieces 21 are arranged at intervals along the axial direction of the accommodation cavity 11 and are used for fixing the detection assembly 30 to ensure the stability and accurate position of the detection assembly 30 in the accommodation cavity 11. The detection assembly 30 comprises two temperature difference measurement pieces 31, the two temperature difference measurement pieces 31 are connected by at least two wires, such as Figure 2 and Figure 5As shown, the two temperature difference measuring members 31 are connected to the two first fixing members 21 one by one. In an embodiment, the two temperature difference measuring members 31 are connected by a first lead wire 33 and a second lead wire 34, the first lead wire 33 and the second lead wire 34 have different impedances, the potential difference is measured by connecting the lead wires with different impedances, and the temperature difference information can be obtained by bringing the electrical signals generated by the lead wires with different impedances into a temperature difference calculation model. The two kinds of lead wires can be enamel copper connecting wires and enamel copper connecting wires. In another embodiment, the two temperature difference measuring members 31 are connected by three lead wires, at least two kinds of lead wires exist in the three lead wires, which further enhances the accuracy and stability of signal measurement. It should be noted that the shell 10 is provided with a lead wire hole 14 corresponding to the lead wire hole 14, so that the lead wire in the cavity 11 can pass out of the lead wire hole 14 and be electrically connected to the controller.

[0047] In an embodiment, the inner wall of the accommodating cavity 11 is provided with two matched installation grooves, and the two first fixing members 21 are installed in the two installation grooves, which can ensure the stable installation of the first fixing member 21 and guarantee the accurate position of the first fixing member 21 in the cavity. In an embodiment, the first fixing member 21 can move along the extension direction of the installation groove (parallel to the axial direction of the accommodating cavity 11) to adjust the position of the first fixing member 21, that is, to adjust the distance between the two first fixing members 21, so as to flexibly adjust the distance between the two temperature difference measuring members 31 arranged on the two first fixing members 21. In this way, temperature difference detection at different positions can be realized, and plants with different sizes and growth stages can be adapted.

[0048] As shown in the figure, Figure 3 The temperature difference measuring member 31 includes a first spool 311 and a temperature difference measuring sheet 312, the temperature difference measuring sheet 312 is wound on the first spool 311, the first fixing member 21 is provided with a first channel, the free end of the temperature difference measuring sheet 312 is arranged in the first channel and connected to the first fixing member 21, forming a first adjustable ring arrangement space 351, the axis of the first adjustable ring arrangement space 351 is parallel to the axis of the accommodating cavity 11.

[0049] Specifically, the bottom surface of the first fixing member 21 is connected with the inner wall surface of the accommodating cavity 11, and the first fixing member 21 is provided with a first channel, the inlet of the first channel is arranged on the side wall of the first fixing member 21, and the outlet of the first channel is arranged on the top surface (the surface opposite to the bottom surface) of the first fixing member 21. The temperature difference measuring piece 312 is usually made of a material with good ductility, such as a copper sheet, which can adapt to the diameter change of the plant stem 110 during the growth process, thereby ensuring the continuity and flexibility of the measurement. During installation, the free end of the temperature difference measuring piece 312 enters the first channel through the inlet and extends out of the outlet, is arranged around the plant stem 110 for one turn, and is connected with the first fixing member 21, so as to form a first adjustable annular arrangement space 351, and the axis of the first adjustable annular arrangement space 351 is parallel to the axis of the accommodating cavity 11. In an embodiment, the axis of the first adjustable annular arrangement space 351 is collinear with the axis of the accommodating cavity 11.

[0050] In an embodiment, a damping member is additionally arranged between the first channel and the temperature difference measuring piece 312 to prevent the temperature difference measuring piece 312 from moving at will. The damping member helps to ensure that the temperature difference measuring piece 312 remains stable during measurement, thereby improving the accuracy and reliability of the measurement. It can be understood that, as the plant stem 110 grows, the diameter of the stem 110 increases, and the temperature difference measuring piece 312 moves correspondingly with the expansion of the stem 110, thereby adjusting the size of the first adjustable annular arrangement space 351 to adapt to the change in the diameter of the stem 110, and ensuring that the device can continuously and effectively perform temperature difference measurement.

[0051] The plant runoff measurement device further comprises two first elastic members 40, and the bottom surface of each first fixing member 21 is connected with the inner wall surface of the accommodating cavity 11 through the first elastic member 40. When the diameter of the stem 110 increases, the first fixing member 21 will be affected by the increase in the diameter of the stem 110, and the first elastic member 40 will be compressed under the action of external force, so that the first fixing member 21 moves towards the inner wall surface of the accommodating cavity 11. This design can make the plant runoff measurement device maintain good adaptability and stability during plant growth, and ensure that the measurement device can adapt to the change in the diameter of the stem 110 and self-adjust to ensure the accuracy of the measurement. At the same time, the elastic action of the first elastic member 40 helps to maintain the close connection between the device and the plant stem 110, prevents the device from loosening or error due to the growth change of the stem 110, and improves the reliability and accuracy of the device in long-term use. The first elastic member 40 can be elastically deformed, such as a rubber pad, a silicone pad spring, etc. It should be noted that the two first elastic members 40 can be of the same structure or different structures.

[0052] In an embodiment, the plant runoff measurement device further comprises two second elastic members 50, and the side of each first fixing member 21 away from the other first fixing member 21 is provided with a second elastic member 50, such as Figure 4As shown, the two first fixing members 21 are arranged along the axis of the accommodating cavity 11 and are spaced apart from each other, and the sides of the two first fixing members 21 away from each other are close to the top and bottom of the accommodating cavity 11 respectively. One end of the second elastic member 50 is connected with the first fixing member 21, and the other end of the second elastic member 50 is in abutment with the inner wall surface of the accommodating cavity 11, so that the first fixing member 21 can move back and forth along the axis of the accommodating cavity 11. The second elastic member 50 can provide an elastic constraint, so that the first fixing member 21 can move back and forth along the axis of the accommodating cavity 11, ensuring flexibility and adaptability of the device when the diameter of the plant stem 110 changes. The second elastic member 50 functions to provide adjustable support force for the first fixing member 21, so as to realize free sliding and adjustment along the axis. With the growth of the stem 110, the detection assembly 30 can self-adjust to avoid being stuck or failing to adapt due to the increase of the stem 110, and maintain the stability and accuracy of the measuring device. The second elastic member 50 in the embodiment can be a compression spring, or can be an elastic plastic member, a rubber pad, a silica gel pad, etc.

[0053] In one embodiment, the detection assembly 30 further comprises a heating member 32, and the plant runoff measuring device further comprises a second fixing member 22, which is arranged in space apart from the first fixing member 21. The heating member 32 is connected with the second fixing member 22, and the heating member 32 is electrically connected with the controller 90. The heating member 32 is used to contact the stem 110.

[0054] As shown in FIGS. Figure 4 and Figure 5 The second fixing member 22 is arranged between the two first fixing members 21. In another embodiment, the second fixing member 22 can be arranged on one side of the two first fixing members 21, such as the side close to the top of the shell 10 or the side close to the bottom of the shell 10. Similarly, in order to ensure the stability of the heating member 32, a corresponding limiting groove can be arranged on the accommodating cavity 11, and the second fixing member 22 is arranged in the limiting groove. The heating member 32 is used to heat the plant. Further, the heating member 32 is electrically connected with the controller 90, and the controller 90 is used to control the operation of the heating member 32, such as turning on or off. In one embodiment, the plant runoff measuring device further comprises an adjusting member 80, which is connected with the heating member 32 and is used to adjust the heating power of the heating member 32. In one embodiment, the adjusting member 80 is electrically connected with the controller 90, and the controller 90 controls the adjusting member 80 to adjust the operation power of the heating member 32 based on actual needs. It should be noted that the heating member 32 can provide stable constant temperature heating.

[0055] In one embodiment, the heating member 32 comprises a second spool and a heating sheet, the heating sheet is wound on the second spool, the second fixing member 22 is provided with a second channel, the free end of the heating sheet is arranged in the second channel and connected with the second fixing member 22, forming a second adjustable ring arrangement space 352, and the second adjustable ring arrangement space 352 is coaxial with the first adjustable ring arrangement space 351.

[0056] Specifically, the bottom surface of the second fixing member 22 is connected with the inner wall surface of the accommodating cavity 11, and the second fixing member 22 is provided with a second channel, the first opening of the second channel is arranged on the side wall of the second fixing member 22, and the second opening of the second channel is arranged on the top surface (the surface opposite to the bottom surface) of the second fixing member 22. The heating member 32 is usually made of a material with good ductility, such as a copper sheet, which can adapt to the diameter change of the plant stem 110 during the growth process, thereby ensuring the continuity and flexibility of the measurement. During the installation process, the free end of the heating sheet enters the second channel through the first opening and extends out of the second opening, is arranged around the plant stem 110 for one turn, and is connected with the second fixing member 22, so as to form a second adjustable arrangement space 352 coaxial with the first adjustable space.

[0057] In one embodiment, the temperature difference measuring member 31 and the heating member 32 are integrated, thereby improving the accuracy of the measurement.

[0058] In one embodiment, the plant runoff measuring device further comprises a third elastic member 60, and the bottom surface of the second fixing member 22 is connected with the inner wall surface of the accommodating cavity 11 through the third elastic member 60. When the diameter of the stem 110 increases, the second fixing member 22 will be affected by the increase in the diameter of the stem 110, and the second elastic member 50 will be compressed under the action of the external force, so that the second fixing member 22 moves towards the inner wall surface of the accommodating cavity 11. This design can make the plant runoff measuring device maintain good adaptability and stability during the growth of the plant, and ensure that the measuring device can adapt to the diameter change of the stem 110 and self-adjust to ensure the accuracy of the measurement. At the same time, the elastic effect of the second elastic member 50 helps to maintain the close connection between the device and the plant stem 110, prevents the device from loosening or error due to the growth change of the stem 110, and improves the reliability and accuracy of the device in long-term use. The second elastic member 50 can realize elastic deformation, which can be realized by a rubber pad, a silica gel pad spring and the like.

[0059] The plant runoff measuring device provided in the embodiment of the utility model further comprises a physiological monitoring module, the plant physiological monitoring module 120 is used for acquiring environmental parameters of the plant, the plant physiological monitoring module 120 is electrically connected with the controller 90, and the controller 90 is used for receiving the environmental information of the plant acquired by the plant physiological monitoring module 120.

[0060] It should be noted that the plant physiological monitoring module 120 comprises a temperature sensor, a humidity sensor, a light sensor and the like, wherein the temperature sensor is used for acquiring the environmental temperature, the humidity sensor is used for acquiring the environmental humidity, and the light sensor is used for acquiring the light data of the plant. The plant physiological monitoring module 120 in the embodiment of the utility model can further comprise other environmental monitoring members, which are not described herein.

[0061] The plant runoff measuring device in the embodiment of the utility model further comprises an irrigation module, the irrigation module is electrically connected with the controller 90, and the specific operation is as shown in Figure 9 As shown in the figure, the controller 90 controls the operation of the irrigation module based on the data information obtained by the detection assembly 30 and the plant physiological monitoring module 120, including the opening and closing of the irrigation module and the size of the water quantity. The embodiment of the utility model realizes automatic adjustment of the irrigation module by the controller 90 linking the irrigation module with the detection module and the plant physiological monitoring module 120, realizes precise irrigation, and not only can improve yield and quality, but also can improve the utilization rate of water resources.

[0062] The plant runoff measuring device provided by the embodiment of the utility model further comprises a power module 70, as shown in Figure 8 The plant physiological monitoring module 120, the detection assembly 30 and the controller 90 are all electrically connected with the power module 70, and the power module 70 supplies power for them.

[0063] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and range of the technical solutions of the embodiments of the utility model.

Claims

1. A plant runoff measuring device, characterized by, The plant runoff measuring device comprises a shell, a detection assembly, a controller, two first fixing members, two first elastic members, two second elastic members, a heating member, a second fixing member, a third elastic member, an adjusting member, a plant physiological monitoring module and an irrigation module. The shell has a containing cavity, and both ends of the containing cavity are provided with openings. The detection assembly is arranged in the containing cavity and connected with the inner wall surface of the containing cavity. The detection assembly has an adjustable ring arrangement space for wrapping the stem.

2. The plant runoff measuring device of claim 1, wherein, The detection assembly is used to obtain the temperature difference of the stem. The detection assembly is electrically connected with the controller.

3. The plant runoff measuring device of claim 2, wherein, The controller determines the runoff of the stem based on the temperature difference obtained by the detection assembly.

4. The plant runoff measuring device of claim 2, wherein, The two first fixing members are arranged along the axial direction of the containing cavity.

5. The plant runoff measuring device of claim 2, wherein, The detection assembly comprises two temperature difference measuring members.

6. The plant runoff measuring device of claim 5, wherein, The two temperature difference measuring members are electrically connected by at least two wires.

7. The plant runoff measuring device of claim 5, wherein, The two temperature difference measuring members are respectively connected with the two first fixing members one by one.

8. The plant runoff measuring device of claim 5, wherein, The temperature difference measuring member comprises a first spool and a temperature difference measuring sheet.

9. The plant runoff measuring device according to any one of claims 1 to 8, characterized in that The temperature difference measuring sheet is wound on the first spool.

10. The plant runoff measuring device of claim 9, wherein, The first fixing member is provided with a first channel. The free end of the temperature difference measuring sheet is connected with the first fixing member after being arranged in the first channel. The first adjustable ring arrangement space is formed. The axial line of the first adjustable ring arrangement space is parallel to the axial line of the containing cavity. The bottom surface of each first fixing member is connected with the inner wall surface of the containing cavity through the first elastic member. The two first fixing members are arranged along the axial direction of the containing cavity. The two first fixing members are connected with the second elastic member on the side away from each other. One end of the second elastic member is connected with the first fixing member, and the other end is abutted with the inner wall surface of the containing cavity. The first fixing member can move back and forth along the axial direction of the containing cavity. The detection assembly further comprises a heating member. The plant runoff measuring device further comprises a second fixing member. The second fixing member is arranged between the first fixing member and the heating member. The heating member is connected with the second fixing member. The heating member is electrically connected with the controller. The heating member is used to contact with the stem. The heating member comprises a second spool and a heating sheet. The heating sheet is wound on the second spool. The second fixing member is provided with a second channel. The free end of the heating sheet is connected with the second fixing member after being arranged in the second channel. The second adjustable ring arrangement space is coaxial with the first adjustable ring arrangement space. The bottom surface of the second fixing member is connected with the inner wall surface of the containing cavity through the third elastic member. The adjusting member is connected with the heating member and used to adjust the heating power of the heating member. The plant physiological monitoring module is electrically connected with the controller. The irrigation module is electrically connected with the controller. The controller controls the operation of the irrigation module based on the data information obtained by the detection assembly and the plant physiological monitoring module.

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