CN113341106A - Automatic dry depth probe and method for predicting and acquiring dry depth information - Google Patents
Automatic dry depth probe and method for predicting and acquiring dry depth information Download PDFInfo
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- CN113341106A CN113341106A CN202110623070.2A CN202110623070A CN113341106A CN 113341106 A CN113341106 A CN 113341106A CN 202110623070 A CN202110623070 A CN 202110623070A CN 113341106 A CN113341106 A CN 113341106A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N33/246—Earth materials for water content
Abstract
The invention discloses an automatic dry-depth probe and a method for predicting and obtaining dry-depth information, wherein the automatic dry-depth probe comprises an inductor for measuring moisture content, a probe for mounting the inductor, a probe rack for mounting the probe and a probe driving mechanism for accurately driving the probe to move forwards or backwards, wherein the inductor is arranged at the front end of the probe along the advancing direction of the probe; the probe driving mechanism comprises a high-precision driving motor and a transmission mechanism with a specific transmission ratio, and the transmission mechanism is used for converting the rotation of the motor into the linear motion of the probe. The automatic dry depth probe can accurately and automatically enter different depths of soil to detect dry depth information of the soil.
Description
Technical Field
The invention relates to irrigation humidity detection equipment, in particular to an automatic dry depth probe and a method for predicting and acquiring dry depth information.
Background
With the development of science and technology, people pay more and more attention to environmental protection, and the realization of environmental protection industry, such as environmental protection intelligent industry, in various fields is expected. In agricultural production, water resources are particularly important, and development of water-saving agriculture is particularly important. At present, the more advanced irrigation technology not only comprises sprinkling irrigation and micro irrigation, but also comprises the application of the advanced automatic control technology to implement accurate irrigation, and the accuracy of irrigation is improved by taking the actual water demand of crops as the basis and taking the information technology as the means. The key point of implementing accurate irrigation by using an automatic control technology lies in how to obtain the soil moisture content of different soil depths, so that corresponding irrigation measures are made according to the soil moisture content. The dry depth probe is used for detecting the depth of dry soil, and the traditional dry depth probe is characterized in that a sensor is arranged at the tail end of a probe body with a certain length and then is inserted into the soil to obtain the water content information of the soil. However, the conventional dry-deep probe has the following problems:
1. traditional dry and deep probe need manually insert in soil, when needs acquire a large amount of dry and deep data, and the work load is heavy, consumes the labour to it is inefficient.
2. The depth that traditional dry and deep probe got into soil needs manual measurement, and manual measurement has great error, leads to the soil dry and deep information of acquireing to have discrepancy, and measuring effect is not good.
3. Traditional dry deep probe has set up certain length, therefore in the soil of a dry deep probe can only insert certain degree of depth, when the soil water content information of the different degree of depth need be surveyed, need set up the dry deep probe of various different lengths, dry deep probe is numerous, detects with high costs.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic dry depth probe which can accurately and automatically enter different depths of soil to detect dry depth information of the soil.
Another object of the present invention is to provide a method for predicting and obtaining soil dry depth information using the dry depth probe.
The technical scheme for solving the technical problems is as follows:
an automatic dry-deep probe comprises a sensor for measuring moisture content, a probe for mounting the sensor, a probe frame for mounting the probe, and a probe driving mechanism for precisely driving the probe to advance or retreat, wherein the sensor is arranged at the front end of the probe along the advancing direction of the probe; the probe driving mechanism comprises a high-precision driving motor and a transmission mechanism with a specific transmission ratio, and the transmission mechanism is used for converting the rotation of the motor into the linear motion of the probe.
The working principle of the automatic dry-depth probe is as follows:
when the dry depth detection is needed, the automatic dry depth probe is started to detect the soil within a certain range. Firstly, the front end of a probe is arranged downwards, and the foremost end of the probe is contacted with a soil plane; next, starting the high-precision driving motor, controlling the high-precision driving motor to rotate, converting the high-precision driving motor into the linear motion of the probe by the transmission mechanism, and enabling the transmission mechanism to have a fixed transmission ratio, so that the high-precision driving motor can accurately control the probe to advance for a certain distance. The sensor sets up the front end at the probe, and the sensor is fixed with the most forward end's of probe distance, and under the circumstances that the probe front end got into soil depth and confirms, the sensor got into the depth of soil and also confirmed. When the probe advances, the sensor works simultaneously, and the information of the moisture content in the soil at the current depth is recorded; in the process that the probe enters different depths in the soil, the sensor detects the moisture content information in the soil with the corresponding depth, and therefore the dry depth information of the soil at the measuring point is obtained. In the whole measuring process, the high-precision driving motor and the transmission mechanism enable the probe to automatically advance, and the probe can be controlled to enter the soil with accurate depth, so that the detection of the water content of the soil with different depths can be completed through one probe.
In a preferred embodiment of the present invention, the sensor includes a sensing portion for directly contacting soil, the sensing portion is an arc-shaped metal sheet, and the metal sheet is disposed at a front end of the probe.
Preferably, the sensor is an MP-508B humidity sensor.
According to a preferable scheme of the invention, the front end of the probe is provided with a mud-storing groove, the axis of the mud-storing groove is perpendicular to the axis of the probe, the mud-storing groove penetrates through the probe, and one end of the mud-storing groove is in contact with the inner wall of the arc-shaped metal sheet.
In a preferred embodiment of the present invention, the high-precision driving motor is a servo motor.
In a preferred embodiment of the present invention, the transmission mechanism includes a lead screw disposed at the rear end of the probe, a lead screw nut matched with the lead screw, a driving gear disposed on the motor shaft, and a driven gear disposed on the lead screw nut, wherein the lead screw nut is mounted at the upper end of the probe holder through a bearing.
According to a preferable scheme of the invention, the transmission mechanism comprises a screw rod arranged at the rear end of the probe, a screw rod nut matched with the screw rod, a driving synchronous wheel arranged on a rotating shaft of the motor, a driven synchronous wheel arranged on the screw rod nut and a synchronous belt arranged between the driving synchronous wheel and the driven synchronous wheel, wherein the screw rod nut is arranged at the upper end of the probe frame through a bearing.
According to a preferable scheme of the invention, the transmission mechanism comprises a linear module, the high-precision driving motor is arranged on the linear module, the probe is arranged on a sliding table of the linear module, and the linear module forms the probe frame.
In a preferred embodiment of the present invention, the transmission mechanism includes a rack disposed at a rear end of the probe and a second gear disposed on a rotating shaft of the high-precision driving motor, wherein the second gear is engaged with the rack, and a length direction of the rack is disposed along a length direction of the probe; and the rotating shaft of the high-precision driving motor is perpendicular to the axis direction of the probe.
A method of predicting and obtaining depth of interference information, comprising the steps of:
(1) controlling a data acquisition module to acquire the dry depth information of the soil; specifically, the method comprises the following steps:
ST1-1, starting an automatic dry-deep probe to detect soil within a certain range;
ST1-2, placing the front end of the probe downwards, and enabling the most front end of the probe to be in contact with the soil plane;
ST1-3, starting a high-precision driving motor to drive the probe to enter the soil;
ST1-4, acquiring depth information of the probe entering the soil and water content information corresponding to the soil depth;
(2) the transmission module transmits the information acquired by the data acquisition module; specifically, the method comprises the following steps:
ST2-1, AD 8591D/A conversion module carries out D/A conversion on the information acquired by the data acquisition module;
ST2-2, D/A conversion module passing I converted information2C, the bus is transmitted to the data processing module;
(3) the data processing module processes the information transmitted by the transmission module; specifically, the method comprises the following steps:
ST3-1, firstly, sorting according to the collected data, then reading the data, calling an algorithm for training to generate a model, optimizing the model and then putting the optimized model into a raspberry pi file;
ST3-2, a Mamdani type fuzzy control module calculates fuzzy quantity;
ST3-3, transferring a raspberry-type microcomputer to receive soil depth information acquired by a probe sensor and water content information data corresponding to the soil depth, which are transmitted by a transmission module, and transmitting the data back to the trained calling model for analysis;
ST3-4, obtaining a soil time domain-depth water content prediction model result;
(4) and the communication module sends the processing result of the data processing module to the client, and the user obtains the soil time domain-depth water content prediction model at the client so as to obtain the dry and deep information of the soil.
Compared with the prior art, the invention has the following beneficial effects:
1. the automatic dry-deep probe is driven by the high-precision driving motor to automatically advance, saves labor force and can greatly improve the detection efficiency compared with the traditional mode of manually inserting the probe into soil.
2. According to the automatic dry-deep probe, the advancing distance of the probe is controlled by the high-precision driving motor, so that the depth of the probe entering the soil is completed by controlling the rotation of the high-precision driving motor, the depth of the probe entering the soil does not need to be manually measured, and the depth of the probe entering the soil has high precision, so that more accurate water content information in the soil with different depths can be obtained.
3. According to the automatic dry-depth probe, one probe can enter the soil with different depths, the water content of the soil with different depths can be measured by only using one probe, and the automatic dry-depth probe is low in cost and high in function.
Drawings
Fig. 1 to 3 are schematic diagrams of a first embodiment, wherein fig. 1 is a front sectional view, fig. 2 is a perspective view of one of the viewing angles, and fig. 3 is a workflow diagram for acquiring information on trunk depth.
Fig. 4 is a schematic view of a second embodiment.
Fig. 5 is a schematic view of the third embodiment.
Fig. 6 is a schematic view of a fourth embodiment.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1-2, the automatic dry-depth probe of the present invention comprises a sensor 4 for measuring moisture content, a probe 1 for mounting the sensor 4, a probe holder 2 for mounting the probe 1, and a probe driving mechanism for precisely driving the probe 1 to advance or retreat, wherein the sensor 4 is disposed at a front end of the probe 1 along a direction in which the probe 1 advances; the probe driving mechanism comprises a high-precision driving motor 3 and a transmission mechanism with a specific transmission ratio, and the transmission mechanism is used for converting the rotation of the motor into the linear motion of the probe 1.
Referring to fig. 1-2, the sensor 4 includes a sensing portion 4-1 for directly contacting soil, and the sensing portion 4-1 is an arc-shaped metal sheet disposed at a front end of the probe 1. The sensor 4 is arranged, and the sensing part 4-1 of the sensor 4 is arranged to be an arc-shaped sheet metal, so that the sheet metal can be tightly attached to the probe 1, and when the probe 1 enters soil, the friction between the sensing part 4-1 and the soil can be effectively reduced, and the probe 1 can more conveniently enter the soil.
Referring to fig. 1-2, the sensor 4 is an MP-508B humidity sensor.
Referring to fig. 1-2, a mud storage groove 1-1 is arranged at the front end of the probe 1, the axis of the mud storage groove 1-1 is perpendicular to the axis of the probe 1, the mud storage groove 1-1 penetrates through the probe 1, and one end of the mud storage groove 1-1 is in contact with the inner wall of the arc-shaped metal sheet. The mud storage groove 1-1 is arranged, soil with corresponding depth enters the mud storage groove 1-1 in the process that the probe 1 enters the soil, when the probe 1 is pulled out by mistake, the soil in the mud storage groove 1-1 is taken out along with the probe 1, and one end of the mud storage groove 1-1 is in contact with the inner wall of the arc-shaped metal sheet, so that even if the probe 1 is pulled out by mistake, the soil water content information with the depth can still be measured, the design is ingenious, and the function is strong.
Referring to fig. 1 to 2, the high-precision driving motor 3 is a servo motor. The servo motor controls the cooked reading and the position precision very accurately, the response is quick, the moving distance of the probe 1 can be accurately controlled by controlling the rotation of the servo motor, the depth of the probe 1 entering the soil can be accurately controlled, and accurate information of the depth of the soil can be obtained.
Referring to fig. 1-2, the transmission mechanism includes a screw 5 disposed at the rear end of the probe 1, a screw nut 6 matched with the screw 5, a driving gear 7 disposed on the motor shaft, and a driven gear 8 disposed on the screw nut 6, wherein the screw nut 6 is mounted at the upper end of the probe holder 2 through a bearing. Set up above-mentioned drive mechanism, when high accuracy driving motor 3 rotated, drive driving gear 7 and rotate, driving gear 7 made driven gear 8 rotate, because driven gear 8 sets up on screw-nut 6, and screw-nut 6 matches with the lead screw 5 that sets up at probe 1 rear end, consequently driven gear 8's rotation makes lead screw 5 be linear motion along four-bar nut's axis, thereby make probe 1 automatic realization get into or withdraw from the function of soil.
Referring to fig. 1-2, the working principle of the automatic dry-depth probe is as follows:
when the dry depth detection is needed, the automatic dry depth probe is started to detect the soil within a certain range. Firstly, the front end of a probe 1 is arranged downwards, and the foremost end of the probe 1 is contacted with a soil plane; next, the high-precision driving motor 3 is started, and the high-precision driving motor 3 is controlled to rotate, the transmission mechanism is used for converting the high-precision driving motor 3 into the linear motion of the probe 1, and the transmission mechanism has a fixed transmission ratio, so that the high-precision driving motor 3 can accurately control the probe 1 to advance for a certain distance, and since the foremost end of the probe 1 is located on the plane of the soil in the initial state, the distance that the foremost end of the probe 1 advances is the depth that the probe 1 enters the soil. The sensor 4 is arranged at the front end of the probe 1, the distance between the sensor 4 and the foremost end of the probe 1 is fixed, and under the condition that the depth of the front end of the probe 1 entering the soil is determined, the depth of the sensor 4 entering the soil is also determined. When the probe 1 advances, the sensor 4 works simultaneously, and the information of the moisture content in the soil at the current depth is recorded; in the process that the probe 1 enters different depths in the soil, the sensor 4 detects the moisture content information in the soil with the corresponding depth, so that the dry depth information of the soil at the measuring point is obtained. In the whole measurement process, the high-precision driving motor 3 and the transmission mechanism enable the probe 1 to automatically advance, and the probe 1 can be controlled to enter the soil with accurate depth, so that the detection of the water content of the soil with different depths can be completed through one probe.
Referring to fig. 3, a method of predicting and obtaining information on dry depth includes the steps of:
(1) controlling a data acquisition module to acquire the dry depth information of the soil; specifically, the method comprises the following steps:
ST1-1, starting an automatic dry-deep probe to detect soil within a certain range;
ST1-2, placing the front end of the probe 1 downwards, and enabling the most front end of the probe 1 to be in contact with the soil plane;
ST1-3, starting the high-precision driving motor 3, and driving the probe 1 to enter the soil;
ST1-4, acquiring depth information of the probe 1 entering the soil and water content information corresponding to the soil depth;
(2) the transmission module transmits the information acquired by the data acquisition module; specifically, the method comprises the following steps:
ST2-1, AD 8591D/A conversion module carries out D/A conversion on the information acquired by the data acquisition module;
ST2-2, D/A conversion module passing I converted information2C, the bus is transmitted to the data processing module;
(3) the data processing module processes the information transmitted by the transmission module; the data processing module comprises a raspberry pi microcomputer and a Mamdani type fuzzy control module, and specifically, the information processing process comprises the following steps:
ST3-1, firstly, sorting according to the collected data, then reading the data, calling an algorithm for training to generate a model, optimizing the model and then putting the optimized model into a raspberry pi file;
ST3-2, a Mamdani type fuzzy control module calculates fuzzy quantity;
ST3-3, transferring a raspberry-type microcomputer to receive soil depth information acquired by a probe sensor and water content information data corresponding to the soil depth, which are transmitted by a transmission module, and transmitting the data back to the trained calling model for analysis;
ST3-4, obtaining a soil time domain-depth water content prediction model result;
(4) and the communication module sends the processing result of the data processing module to the client, and the user obtains the soil time domain-depth water content prediction model at the client so as to obtain the dry and deep information of the soil.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that the present embodiment changes the gear transmission in embodiment 1 into a synchronous wheel transmission, and the transmission mechanism includes a lead screw 5 disposed on the rear end of the probe 1, a lead screw nut 6 matched with the lead screw 5, a driving synchronous wheel 9 disposed on the rotating shaft of the motor, a driven synchronous wheel 10 disposed on the lead screw nut 6, and a synchronous belt 11 disposed between the driving synchronous wheel 9 and the driven synchronous wheel 10, wherein the lead screw nut 6 is mounted on the upper end of the probe holder 2 through a bearing. Set up above-mentioned drive mechanism, when high accuracy driving motor 3 rotates, drive initiative synchronizing wheel 9 and rotate, initiative synchronizing wheel 9 passes through hold-in range 11 and makes driven synchronizing wheel 10 rotate, because driven synchronizing wheel 10 sets up on screw-nut 6, and screw-nut 6 matches with the lead screw 5 that sets up at probe 1 rear end, consequently, the rotation of driven synchronizing wheel 10 makes lead screw 5 be linear motion along four-bar nut's axis, thereby make probe 1 realize automatically that get into or withdraw from the function of soil.
Example 3
Referring to fig. 5, in the present embodiment, the transmission mechanism includes a linear module 12, the high-precision driving motor 3 is disposed on the linear module 12, the probe 1 is disposed on a sliding table 12-1 of the linear module 12, and the linear module 12 constitutes the probe holder 2. By arranging the transmission mechanism, the high-precision driving motor 3 rotates to enable the sliding block of the linear module 12 to do linear motion, so that the probe 1 arranged on the sliding table 12-1 of the linear module 12 follows the sliding table 12-1 to do linear motion, and the probe 1 can automatically enter or exit the soil.
Example 4
Referring to fig. 6, in the present embodiment, the transmission mechanism includes a rack 13 disposed at the rear end of the probe 1 and a second gear 14 disposed on the rotating shaft 3 of the high-precision driving motor, wherein the second gear 14 is engaged with the rack 13, and the length direction of the rack 13 is disposed along the length direction of the probe 1; the rotating shaft of the high-precision driving motor 3 is perpendicular to the axial direction of the probe 1. The transmission mechanism is arranged, when the high-precision driving motor 3 rotates, the rotating shaft of the high-precision driving motor 3 enables the second gear 14 to rotate, the rack 13 meshed with the second gear 14 is enabled to do linear motion through the rotation of the second gear 14, and the linear motion of the rack 13 enables the probe 1 to do linear motion due to the fact that the length direction of the rack 13 is arranged along the length direction of the probe 1, so that the probe 1 can automatically enter or be pushed out of soil.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. An automatic dry-deep probe is characterized by comprising a sensor for measuring moisture content, a probe for mounting the sensor, a probe frame for mounting the probe and a probe driving mechanism for precisely driving the probe to advance or retreat, wherein the sensor is arranged at the front end of the probe along the advancing direction of the probe; the probe driving mechanism comprises a high-precision driving motor and a transmission mechanism with a specific transmission ratio, and the transmission mechanism is used for converting the rotation of the motor into the linear motion of the probe.
2. An automated dry depth probe according to claim 1, wherein the sensor comprises a sensing portion for direct contact with soil, the sensing portion being an arcuate metal sheet disposed at a forward end of the probe.
3. An automated dry depth probe according to claim 2, wherein the sensor is an MP-508B humidity sensor.
4. The automatic dry-deep probe head as claimed in claim 2, wherein the front end of the probe is provided with a mud collecting groove, the axis of the mud collecting groove is perpendicular to the axis of the probe, the mud collecting groove penetrates through the probe, and one end of the mud collecting groove is in contact with the inner wall of the arc-shaped metal sheet.
5. An automated dry depth probe according to claim 1, wherein the high precision drive motor is a servo motor.
6. The automatic dry depth probe according to claim 1, wherein the transmission mechanism comprises a lead screw disposed at the rear end of the probe, a lead screw nut matched with the lead screw, a driving gear disposed on the rotating shaft of the motor, and a driven gear disposed on the lead screw nut, wherein the lead screw nut is mounted at the upper end of the probe holder through a bearing.
7. The automatic dry-depth probe according to claim 1, wherein the transmission mechanism comprises a lead screw disposed on the rear end of the probe, a lead screw nut matched with the lead screw, a driving synchronizing wheel disposed on the rotating shaft of the motor, a driven synchronizing wheel disposed on the lead screw nut, and a synchronous belt disposed between the driving synchronizing wheel and the driven synchronizing wheel, wherein the lead screw nut is mounted on the upper end of the probe holder through a bearing.
8. The automatic dry depth probe of claim 1, wherein the transmission mechanism comprises a linear module, the high-precision driving motor is arranged on the linear module, the probe is arranged on a sliding table of the linear module, and the linear module forms the probe holder.
9. The automatic dry depth probe according to claim 1, wherein the transmission mechanism comprises a rack disposed on the rear end of the probe and a second gear disposed on the rotating shaft of the high precision driving motor, wherein the second gear is engaged with the rack, and the length direction of the rack is disposed along the length direction of the probe; and the rotating shaft of the high-precision driving motor is perpendicular to the axis direction of the probe.
10. A method of predicting and obtaining depth of interference information, comprising the steps of:
(1) controlling a data acquisition module to acquire the dry depth information of the soil; specifically, the method comprises the following steps:
ST1-1, starting an automatic dry-deep probe to detect soil within a certain range;
ST1-2, placing the front end of the probe downwards, and enabling the most front end of the probe to be in contact with the soil plane;
ST1-3, starting a high-precision driving motor to drive the probe to enter the soil;
ST1-4, acquiring depth information of the probe entering the soil and water content information corresponding to the soil depth;
(2) the transmission module transmits the information acquired by the data acquisition module; specifically, the method comprises the following steps:
ST2-1, AD 8591D/A conversion module carries out D/A conversion on the information acquired by the data acquisition module;
ST2-2, D/A conversion module transmits the information after conversion to the data processing module through I2C bus;
(3) the data processing module processes the information transmitted by the transmission module; specifically, the method comprises the following steps:
ST3-1, firstly, sorting according to the collected data, then reading the data, calling an algorithm for training to generate a model, optimizing the model and then putting the optimized model into a raspberry pi file;
ST3-2, a Mamdani type fuzzy control module calculates fuzzy quantity;
ST3-3, transferring a raspberry-type microcomputer to receive soil depth information acquired by a probe sensor and water content information data corresponding to the soil depth, which are transmitted by a transmission module, and transmitting the data back to the trained calling model for analysis;
ST3-4, obtaining a soil time domain-depth water content prediction model result;
(4) and the communication module sends the processing result of the data processing module to the client, and the user obtains the soil time domain-depth water content prediction model at the client so as to obtain the dry and deep information of the soil.
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|---|---|---|---|---|
| CN117405861A (en) * | 2023-12-15 | 2024-01-16 | 逸文环境发展有限公司 | Be used for prosthetic soil detection device of soil heavy metal soil moisture content |
| CN117405861B (en) * | 2023-12-15 | 2024-03-08 | 逸文环境发展有限公司 | Be used for prosthetic soil detection device of soil heavy metal soil moisture content |
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