CN113494936A - Device and method for monitoring growth of underground tuber crops - Google Patents
Device and method for monitoring growth of underground tuber crops Download PDFInfo
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Abstract
The invention relates to a device and a method for monitoring growth of underground tuber crops. The invention can realize the visual in-situ monitoring of the growth state of the underground crops under the condition of not damaging the growth state of soil and crops, and improve the real-time property and the comprehensiveness of data acquisition in the process of monitoring the growth of the underground crops. The problems that the existing underground tuber crop growth monitoring in-situ detection is difficult, the data timeliness is low, and the visualization degree is weak are effectively solved.
Description
Technical Field
The invention relates to the field of underground crop growth monitoring, in particular to an underground tuber crop growth monitoring device and a monitoring method.
Background
Due to the dynamic change characteristics of plants and the non-transparency of the soil environment, the underground tuber crop growth monitoring research is far lagged behind the above-ground research. Under the existing technical conditions, the method for monitoring the growth of tubers of underground tuber crops such as sweet potatoes, carrots and the like is mainly realized by a scale method, a sampling method, chemical analysis and the like based on human visual experience judgment, or a special instrument is adopted to measure related data such as a topological structure, growth parameters and the like. However, these methods need to destroy the soil environment for plant growth, dig it out of the soil, and have the problems of displacement, water loss and the like in sampling, so that the in-situ visual detection of crops cannot be realized, and the process is time-consuming and labor-consuming. Therefore, the device for monitoring the growth of the underground tuber crops is needed to be invented to solve the problems of difficulty in-situ detection, low data timeliness and weak visualization degree of the existing device for monitoring the growth of the underground tuber crops.
Disclosure of Invention
In order to solve the above-mentioned deficiencies of the prior art, the present invention provides the following technical solutions.
A device for monitoring the growth of underground tuber crops comprises a soil moisture content sensor module, a weather information acquisition sensor module, an array information and video acquisition module, an excitation signal generation module, a switch logic gating module, a data acquisition module, a central control module, a data transmission module, a power supply module and a visual display platform, wherein the signal output end of the soil moisture content sensor module is connected with the signal input end of the data acquisition module, the signal output end of the weather information acquisition sensor module is connected with the signal input end of the central control module, the array information and video acquisition module comprises a bottom plate and a bottom plate clamping seat, an electrode and a camera are arranged on the bottom plate, the bottom plate is fixed on the bottom plate clamping seat, a plug rod with a sharp head is arranged on the bottom plate clamping seat, a scale rod is fixed on the bottom plate clamping seat and is marked with scales, the signal output end of the camera is connected with the signal input end of the central control module, the electrode is an excitation electrode and a measuring electrode, the electrode is made of corrosion-resistant, wear-resistant and high-conductivity composite metal material, the electrode is embedded on the bottom plate in an N x N (N is a positive integer) array arrangement mode, the surface of the electrode is flush with the surface of the bottom plate, the camera is embedded in the central position of the array electrode of the bottom plate, the camera is isolated from the surface of the bottom plate by using a corrosion-resistant, wear-resistant and insulating transparent composite material, the electrode is in gating connection with the signal output end of the excitation signal generation module or the signal input end of the data acquisition module under the control of the output signal of the switching logic gating module, and the switching logic gating module comprises an M logic gating module
The number of the two-way change-over switches is (N multiplied by N) (M is the number of the bottom plates), each two-way change-over switch is controlled by a central control module and is connected with the central control module, and the central control module is connected with the bottom plates through the M
(N
One of the N) two-way change-over switches controls the on-off of the excitation signal generation module, and the excitation signal generation module and the M
(N
N) two-way change-over switches, one of which is connected, and the central control module is connected through M
(N
N) two-way change-over switch and the other way of the change-over switch carry out on-off control on the data acquisition module, and the data acquisition module and the M
(N
N) two-way change-over switches are connected in another way, the excitation signal generation module comprises a D/A converter, a current-voltage converter and a multi-stage signal amplifier, an input signal of the excitation signal generation module is connected with a signal input end of the D/A converter, a signal output end of the D/A converter is connected with an input end of the current-voltage converter, an output end of the current-voltage converter is connected with a signal input end of the multi-stage signal amplifier, and a signal output end of the multi-stage signal amplifier is controlled by an output signal of the switch logic gating moduleThe data acquisition module comprises a multistage signal amplifier and an A/D converter, the signal output end of the multistage signal amplifier is connected with the signal input end of the A/D converter, the signal output end of the A/D converter is bidirectionally connected with the input end of the central control module, the signal input end of the data transmission module is connected with the signal transmission end of the central control module, the data output end of the data transmission module is wirelessly connected with the signal input end of the visual display platform, and the power input end of the central control module is connected with the power output end of the power supply module;
furthermore, the soil moisture content sensor module is provided with a soil temperature and humidity sensor, a soil pH sensor, a soil conductivity sensor and a soil nutrient sensor;
further, the weather information acquisition sensor module is provided with an air temperature and humidity sensor, a carbon dioxide sensor and an illumination sensor;
furthermore, the number of the bottom plates is two, the bottom plates are made of corrosion-resistant and wear-resistant insulating composite materials, and the bottom plate clamping seats are made of corrosion-resistant and wear-resistant composite metal materials;
furthermore, the camera is an integrated small-sized camera;
further, the visual display platform is a computer;
furthermore, the central control module adopts an ARM control chip or a DSP chip;
further, the data transmission module comprises a networked server and a wireless transmission module;
furthermore, the power supply module is a biological energy power supply module;
a method for monitoring the growth of underground tuber crops is characterized in that,
(1) vertically inserting a bottom plate clamping seat with a bottom plate into two ends of an underground tuber growing area of a plant to be detected at the same depth;
(2) starting a power supply module, and starting power supply of a power supply to supply power to a central control module;
(3) the central control module outputs a control signal, the data acquisition module starts to acquire soil moisture content data and weather information data, and the excitation signal generation module generates an excitation electric signal;
(4) at the same time, the central control module generates M pairs on the bottom plate
(N
N) on-off control signals of a change-over switch in a switch logic gating module connected with the electrodes, and data acquisition in the horizontal direction and the vertical direction is sequentially finished according to the electrode arrangement, wherein the process is as follows:
firstly, a central control module is used for aligning the horizontal direction M on the bottom plate
(N
N) switches connected with the electrodes are controlled to be on and off, so that the N switches on one bottom plate are in a state of connecting the excitation signal generation module, and the rest M switches
(N
The N-N conversion switches are all in a state of connecting the data acquisition module, an electrode in a state of connecting the excitation signal generation module is a current excitation electrode, and an electrode in a state of connecting the data acquisition module is a current measurement electrode;
② the M can be collected by the data collecting module
(N
N) -N measurements;
thirdly, repeating the first step to the second step, and circularly controlling the on-off of the change-over switch to finish the horizontal squareM towards the bottom plate
N times of data acquisition process and obtaining data acquisition result including M
N
(M
(N
N) -N) measured values.
Fourthly, repeating the first step to the third step, and obtaining a data acquisition result in the vertical direction, wherein the data acquisition result comprises M
N
(M
(N
N) -N) measured values.
(5) The collected soil moisture content data, weather information data, electrode measurement data and video information are sequentially sent to a visual display platform through a central control module and a data transmission module;
(6) visual display platform obtains 2M of bottom plate horizontal direction and vertical direction
N
(M
(N
And N) -N) electrode measurement results are subjected to data processing, imaging results in the horizontal direction and the vertical direction of the monitored area are obtained by using an image reconstruction method, and then the monitoring of the growth shape and size of the underground tuber crops is realized by correcting by using a contour extraction method. Meanwhile, the collected soil moisture content data, the collected weather information data and the video image collected by the camera are displayed and stored.
The invention has the advantages that:
1. the method does not need to destroy the soil environment for plant growth, and realizes the visual in-situ monitoring of the tuber growth condition of the underground crops.
2. The invention comprises an aboveground monitoring part and an underground monitoring part. An electrode and camera combined type visual measuring device is installed on an underground monitoring part, data acquisition is carried out on the electrode from two dimensions of the horizontal direction and the vertical direction, and monitoring of the growth shape and size of the underground tuber crops is achieved through image reconstruction and contour extraction. The video data of the growth of the underground crops are collected through the camera, and the data of the color, the root system and the soil particles of the underground crops are filled, so that the visualization degree of the growth monitoring of the underground crops is effectively improved. In addition, a soil moisture content sensor module is further installed on the underground monitoring part, and soil environment information influencing the growth of underground crops is collected through the soil moisture content sensor module. The weather information acquisition sensor module is arranged on the overground monitoring part and can acquire weather environment information closely related to the growth of the underground tuber crops, so that the underground and overground data acquisition of the crops is realized, the comprehensiveness of the data acquisition in the monitoring process is further improved, and a new method is provided for researching environment regulation and control of plant growth.
3. The biological energy power supply module is adopted to supply power to the central control module, so that green, energy-saving and environment-friendly effects are realized.
4. The device has simple structure, portable operation and low input cost, and can adjust the depth range of underground crop measurement according to the growth state.
In conclusion, the method solves the problems that the existing underground tuber crop growth monitoring in-situ detection is difficult, the data timeliness is low, and the visualization degree is weak.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a base plate and a base plate clamp according to the present invention;
FIG. 3 is a schematic diagram of the logic gating of the switch;
fig. 4 is a schematic diagram of information transmission of each module according to the present invention.
In the figure, 1, a soil moisture content sensor module, 2, a weather information acquisition sensor module, 3, an array information and video acquisition module, 301, a bottom plate clamping seat, 3011, a rod, 3012, a scale rod, 302, a bottom plate, 3021, a camera, 3022, an electrode, 4, a data acquisition module, 5, a switch logic gating module, 6, an excitation signal generation module, 7, a central control module, 8, a power supply module, 9, a data transmission module, and 10, a visual display platform.
Detailed Description
In order to clearly understand the technical scheme of the invention, the following detailed description of the specific embodiments of the invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1-4, the invention discloses an underground tuber crop growth monitoring device, which comprises a soil moisture content sensor module 1, a weather information acquisition sensor module 2, an array information and video acquisition module 3, an excitation signal generation module 6, a switch logic gating module 5, a data acquisition module 4, a central control module 7, a data transmission module 9, a power supply module 8 and a visual display platform 10, wherein the signal output end of the soil moisture content sensor module 1 is connected with the signal input end of the data acquisition module 4, the signal output end of the weather information acquisition sensor module 2 is connected with the signal input end of the central control module 7, the array information and video acquisition module 3 comprises a bottom plate 302 and a bottom plate clamping seat 301, the bottom plate 302 is provided with electrodes 3022 and 3022The bottom plate 302 is fixed on the bottom plate clamping seat 301, a plug-in rod 3011 with a sharp head is arranged on the bottom plate clamping seat 301, a scale rod 3012 is fixed on the bottom plate clamping seat 301, scales are marked on the scale rod 3012, and a signal output end of the camera 3021 is connected with a signal input end of the central control module 7; the electrode 3022 is both an excitation electrode and a measurement electrode, the electrode 3022 is made of a corrosion-resistant, wear-resistant and highly conductive composite metal material, the electrode 3022 is embedded on the bottom plate 302 in an N × N (N is a positive integer) array arrangement, a surface of the electrode 3022 is flush with a surface of the bottom plate 302, the camera 3021 is embedded in a central position of the array electrode 3022 of the bottom plate 302, the camera 3021 is isolated from the surface of the bottom plate 301 by a corrosion-resistant, wear-resistant and insulating transparent composite material, the electrode 3022 is gated and connected to a signal output end of the excitation signal generating module 6 or a signal input end of the data collecting module 4 under the control of an output signal of the switching logic gating module 5, the switching logic gating module 5 includes M × (N × N) two switches, each of the two switches is controlled by the central control module and is connected to the central control module 7, central control module 7 by M
(N
One of the N) two-way change-over switches controls the on-off of the excitation signal generating module 6, and the excitation signal generating module 6 and the M
(N
N) two-way change-over switches, one of which is connected, and the central control module 7 is connected through M
(N
N) two-way change-over switch and the other way of the change-over switch control the on-off of the data acquisition module 4, the data acquisition module 4 and the M
(N
N) another one-way connection of two-way change-over switch, the signal input end of the excitation signal generating module 6 is connected with the output end of the central control module 7, the excitation signal generating module 6 includes D/A converter, current-voltage converter, and multi-level signal amplifier, the input signal of the excitation signal generating module 6 is connected with the signal input end of the D/A converter, the signal output end of the D/A converter is connected with the input end of the current-voltage converter, the output end of the current-voltage converter is connected with the signal input end of the multi-level signal amplifier, the signal output end of the multi-level signal amplifier is connected with the electrode 3022 under the control of the output signal of the switch logic gating module 5, the data collecting module 4 includes multi-level signal amplifier, A/D converter, the signal output end of the multi-level signal amplifier is connected with the signal input end of the A/D converter, the signal output end of the A/D converter is bidirectionally connected with the input end of the central control module 7, the signal input end of the data transmission module 9 is connected with the signal transmission end of the central control module 7, the signal output end of the data transmission module 9 is wirelessly connected with the signal input end of the visual display platform 10, and the power supply input end of the central control module 7 is connected with the power supply output end of the power supply module 8;
preferably, the soil moisture sensor module 1 is provided with a soil temperature and humidity sensor, a soil PH sensor, a soil conductivity sensor and a soil nutrient sensor;
preferably, the weather information acquisition sensor module 2 is provided with an air temperature and humidity sensor, a carbon dioxide sensor and an illumination sensor;
preferably, there are two bottom plates 302, the bottom plate 302 is made of a corrosion-resistant and wear-resistant insulating composite material, and the bottom plate clamping seat 301 is made of a corrosion-resistant and wear-resistant composite metal material;
preferably, the camera 3021 is an integrated small-sized camera;
preferably, the visual display platform 10 is a computer;
preferably, the central control module 7 adopts an ARM control chip or a DSP chip;
preferably, the data transmission module 9 includes a networked server and a wireless transmission module;
preferably, the power supply module 8 is a bioenergy power supply module;
a method for monitoring the growth of underground tuber crops,
(1) vertically inserting the bottom plate clamping seat 301 with the bottom plate 302 into two ends of an underground tuber growing area of a plant to be detected at the same depth, and judging the insertion depth of the bottom plate 302 according to scales on a scale rod 3012 fixed on the bottom plate clamping seat 301;
(2) starting a power supply module 8, and starting power supply to the central control module 7;
(3) the central control module 7 outputs a control signal, the data acquisition module 4 starts to acquire soil moisture content data and weather information data, and the excitation signal generation module 6 generates an excitation electric signal;
(4) meanwhile, the central control module 7 generates on-off control signals (M is the number of the base plates, and N is the number of the single-row electrodes) for the change-over switches in the switch logic gating module 5 connected to M × (N × N) electrodes on the base plate 302, and sequentially completes data acquisition in the horizontal direction and the vertical direction according to the arrangement of the electrodes 3022, and the process is as follows:
(ii) aligning the horizontal direction M on the bottom plate 302 by the central control module 7
The switches connected with (N × N) electrodes 3022 are controlled to be on or off, so that the N switches on one of the base boards 302 are in a state of turning on the excitation signal generation module 6, and the rest M are in a state of turning on the excitation signal generation module 6
The (NxN) -N-path change-over switches are all in the state of connecting the data acquisition module 4 and are inAn electrode 3022 of the excitation signal generation module 6 is switched on as a current excitation electrode, and an electrode 3022 in a state of being switched on with the data acquisition module 4 is a current measurement electrode;
② M can be collected by the data collecting module 4
(nxn) -N measurements;
thirdly, repeating the first step to the second step, and circularly controlling the on-off of the change-over switch to finish M on the two bottom plates 302 in the horizontal direction
N times of data acquisition process and obtaining data acquisition result including M
N×(M
(N
N) -N) measured values.
Fourthly, repeating the first step to the third step, and obtaining a data acquisition result in the vertical direction, wherein the data acquisition result comprises M multiplied by N
(M
(N × N) -N) measurement values.
(5) The collected soil moisture content data, weather information data, electrode measurement data and video information are sequentially sent to a visual display platform 10 through a central control module 7 and a data transmission module 9;
(6) visualization display platform 10 obtains 2 MxN in horizontal direction and vertical direction of bottom plate 302
(M
And (N multiplied by N) -N) electrode measurement results are subjected to data processing, imaging results in the horizontal direction and the vertical direction of the monitored area are obtained by using an image reconstruction method, and the monitoring of the growth shape and size of the underground tuber crops is realized by correcting by using a contour extraction method. Meanwhile, the collected soil moisture content data, the weather information data and the video image collected by the camera are displayed and stored
The invention realizes the in-situ monitoring of the growth of the underground tuber plants.
The foregoing is a preferred embodiment of the present invention, and all equivalent changes or modifications in the structure, characteristics and principles of the invention described in the claims of the present application are included in the scope of the present application.
Claims (10)
1. A device for monitoring the growth of underground tuber crops is characterized by comprising a soil moisture content sensor module, a weather information acquisition sensor module, an array information and video acquisition module, an excitation signal generation module, a switch logic gating module, a data acquisition module, a central control module, a data transmission module, a power supply module and a visual display platform, wherein the signal output end of the soil moisture content sensor module is connected with the signal input end of the data acquisition module, the signal output end of the weather information acquisition sensor module is connected with the signal input end of the central control module, the array information and video acquisition module comprises a bottom plate and a bottom plate clamping seat, an electrode and a camera are installed on the bottom plate, the bottom plate is fixed on the bottom plate clamping seat, a plug rod with a sharp head is arranged on the bottom plate clamping seat, and a scale rod is fixed on the bottom plate clamping seat, the scale rod is marked with scales, the signal output end of the camera is connected with the signal input end of the central control module, the electrodes are both excitation electrodes and measuring electrodes, the electrodes are made of corrosion-resistant, wear-resistant and high-conductivity composite metal materials, the electrodes are embedded on the bottom plate in an N multiplied by N (N is a positive integer) array arrangement mode, the surfaces of the electrodes are flush with the surface of the bottom plate, and the camera is embedded in the central position of the array electrodes of the bottom plateThe camera is isolated from the surface of the bottom plate by a corrosion-resistant, wear-resistant and insulating transparent composite material, the electrode is in gating connection with a signal output end of the excitation signal generation module or a signal input end of the data acquisition module under the control of an output signal of the switching logic gating module, and the switching logic gating module comprises an M
The number of the two-way change-over switches is (N multiplied by N) (M is the number of the bottom plates), each two-way change-over switch is controlled by a central control module and is connected with the central control module, and the central control module is connected with the bottom plates through the M
(N
One of the N) two-way change-over switches controls the on-off of the excitation signal generation module, and the excitation signal generation module and the M
(N
N) two-way change-over switches, one of which is connected, and the central control module is connected through M
(N
N) two-way change-over switch and the other way of the change-over switch carry out on-off control on the data acquisition module, and the data acquisition module and the M
(N
N) twoThe circuit conversion switch is connected with another circuit, the excitation signal generating module comprises a D/A converter, a current-voltage converter and a multi-stage signal amplifier, an input signal of the excitation signal generating module is connected with a signal input end of the D/A converter, a signal output end of the D/A converter is connected with an input end of the current-voltage converter, an output end of the current-voltage converter is connected with a signal input end of the multi-stage signal amplifier, a signal output end of the multi-stage signal amplifier is connected with an electrode under the control of an output signal of the switch logic gating module, the data acquisition module comprises a multi-stage signal amplifier and an A/D converter, a signal output end of the multi-stage signal amplifier is connected with a signal input end of the A/D converter, and a signal output end of the A/D converter is bidirectionally connected with an input end of the central control module, the signal input end of the data transmission module is connected with the signal transmission end of the central control module, the data output end of the data transmission module is wirelessly connected with the signal input end of the visual display platform, and the power input end of the central control module is connected with the power output end of the power supply module.
2. The device for monitoring the growth of the underground tuber crops as claimed in claim 1, wherein the soil moisture sensor module is provided with a soil temperature and humidity sensor, a soil pH sensor, a soil conductivity sensor and a soil nutrient sensor.
3. The device for monitoring the growth of the underground tuber crops, according to claim 1, wherein the weather information acquisition sensor module is provided with an air temperature and humidity sensor, a carbon dioxide sensor and an illumination sensor.
4. The device for monitoring the growth of an underground tuber crop of claim 1, wherein the number of the bottom plates is two, the bottom plates are made of corrosion-resistant and wear-resistant insulating composite materials, and the bottom plate clamping seats are made of corrosion-resistant and wear-resistant composite metal materials.
5. The device of claim 1, wherein the camera is an integrated miniature camera.
6. An underground tuber crop growth monitoring device of claim 1, wherein: the visual display platform is a computer.
7. An underground tuber crop growth monitoring device of claim 1, wherein: the central control module adopts an ARM control chip or a DSP chip.
8. An underground tuber crop growth monitoring device of claim 1, wherein: the data transmission module comprises a networked server and a wireless transmission module.
9. An underground tuber crop growth monitoring device of claim 1, wherein: the power supply module is a biological energy power module.
10. A method for monitoring the growth of underground tuber crops is characterized in that,
(1) vertically inserting a bottom plate clamping seat with a bottom plate into the growing area of the underground tubers of the plants to be detected at the same depth;
(2) starting a power supply module, and starting power supply of a power supply to supply power to a central control module;
(3) the central control module outputs a control signal, the data acquisition module starts to acquire soil moisture content data and weather information data, and the excitation signal generation module generates an excitation electric signal;
(4) at the same time, the central control module generates M pairs on the bottom plate
(N
N) electrode connectionsThe on-off control signal of the change-over switch in the switch logic gating module, and data acquisition in the horizontal direction and the vertical direction is completed in sequence according to the electrode arrangement, and the process is as follows:
firstly, a central control module is used for aligning the horizontal direction M on the bottom plate
(N
N) switches connected with the electrodes are controlled to be on and off, so that the N switches on one bottom plate are in a state of connecting the excitation signal generation module, and the rest M switches
(N
The N-N conversion switches are all in a state of connecting the data acquisition module, an electrode in a state of connecting the excitation signal generation module is a current excitation electrode, and an electrode in a state of connecting the data acquisition module is a current measurement electrode;
② the M can be collected by the data collecting module
(N
N) -N measurements;
thirdly, repeating the first step to the second step, and circularly controlling the on-off of the change-over switch to finish M on the bottom plate in the horizontal direction
N times of data acquisition process and obtaining data acquisition result including M
N
(M
(N
N) -N) measurements;
fourthly, repeating the first step to the third step, and obtaining a data acquisition result in the vertical direction, wherein the data acquisition result comprises M
N
(M
(N
N) -N) measurements;
(5) the collected soil moisture content data, weather information data, electrode measurement data and video information are sequentially sent to a visual display platform through a central control module and a data transmission module;
(6) visual display platform obtains 2M of bottom plate horizontal direction and vertical direction
N
(M
(N
N) -N) electrode measurement results are subjected to data processing, imaging results in the horizontal direction and the vertical direction of a monitoring area are obtained by using an image reconstruction method, and then a contour extraction method is used for correcting, so that the growth shape and size of the underground tuber crops are monitored;
meanwhile, the collected soil moisture content data, the collected weather information data and the video image collected by the camera are displayed and stored.
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