AU2020100881A4 - A High Precision Soil Sensor - Google Patents
A High Precision Soil Sensor Download PDFInfo
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- AU2020100881A4 AU2020100881A4 AU2020100881A AU2020100881A AU2020100881A4 AU 2020100881 A4 AU2020100881 A4 AU 2020100881A4 AU 2020100881 A AU2020100881 A AU 2020100881A AU 2020100881 A AU2020100881 A AU 2020100881A AU 2020100881 A4 AU2020100881 A4 AU 2020100881A4
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- Australia
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- module
- sensor unit
- soil
- environmental
- high precision
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/007—Determining fertilization requirements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Soil Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention provides a high precision soil sensor, comprising a main sensor
unit, an environmental sensor unit, an analog-to-digital conversion module, an
original data collection and storage module, a sorting module, a filter module, an
environmental compensation processing module and a data packaging output module,
wherein the analog-to-digital conversion module is simultaneously connected to the
main sensor unit and the environmental sensor unit; the analog-to-digital conversion
module is connected to the original data collection and storage module; the original
data collection and storage module is connected to the sorting module; the sorting
module is connected to the filter module; the filter module is connected to the
environmental compensation processing module; the environmental compensation
processing module is connected to the data packaging output module. The technical
solution in this invention adopts the main sensor unit and the environmental sensor
unit, and performs multidimensional coefficient calibration on the data collected by
the main sensor unit using the data collected by the environmental sensor unit as the
benchmark, and has high measurement accuracy.
Drawings
Data packaging output module
Environmental compensation
processing module
Sorting module Filter module
Original data collection and storage module
Analog-to-digital conversion module
Main sensor unit Environmental sensor unit
Fig. 1
1-2 3
4 6
Fig. 2
1/2
Description
Drawings
Data packaging output module
Environmental compensation processing module
Sorting module Filter module
Original data collection and storage module
Analog-to-digital conversion module
Main sensor unit Environmental sensor unit
Fig. 1
1-2 3
4 6
Fig. 2
1/2
Descriptions
A High Precision Soil Sensor
Technical Field The present invention relates to the field of sensors, and in particular to a high precision soil sensor.
Background Technology China is the world's largest producer and user of fertilizers and pesticides. Excessive pesticide residues and heavy metal pollution have consistently been the primary problems restricting the development of agricultural and forestry modernization in China. Relying on management alone is far from enough to eliminate the two "invisible killers" of quality and safety of agricultural products. It is necessary to focus on production and take the road of eco-friendly, green and sustainable development. At present, blind use of chemical fertilizers still exists in China. In agricultural production, many farmers invest more fertilizer. However, the final yield is getting lower. Problems such as soil compaction and diseases are becoming increasingly serious, resulting in increased production costs each year, but no increase in income. Particularly, excessive chemical fertilizer application gives rise to soil deterioration and severe soil-bome diseases, causing a lot harm to agricultural production. The reason is that different crops require different nutrients for growth and farmers tend to apply NPK compound fertilizers alone without considering soil conditions and type of crops planted. Blind fertilization harms the soil and crops. Therefore, it does not mean that the more fertilizers the better, but that scientific and rational fertilization can help us realize high quality and high yield. Blind or excessive use of chemical fertilizers not only wastes fertilizers but also increases costs, bringing no significant economic benefits. Thus, on the one hand, planting costs are caused to increase, and agricultural product quality improvement and agricultural ecological environment protection are affected. On the other hand, the quality of cultivated land is seriously degraded, and the imbalance of soil fertility and nutrient content is exacerbated, specifically, the contradiction between the excess of macroelements such as nitrogen, phosphorus and potassium and the deficiency of microelements is intensified, severely restricting the healthy development of agriculture and the realization of farmer's desire to increase production and income through land.
Therefore, China has been vigorously promoting the policy of soil measurement and precision fertilization in recent years, one of the most scientific fertilization methods recognized in the world. After scientific testing and analysis of soil organic matter, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and various microelements and soil PH value, based on the test data and planting crops, fertilizers are reasonably applied. Since crops need different nutrients in different growth periods, the nutrient ratio should be promptly adjusted in accordance with the growth periods of the crops. Only in this way can the crops realize high quality and high
Descriptions
yield.
However, to achieve the above goals, the data of various dimensions of soil including soil moisture, soil pH, soil fertility and heavy metals in the soil should be accurately measured.
Summary of the Invention The object of the present invention is to provide a high precision soil sensor to solve the above problems in the prior art and to measure the data of various dimensions of soil with high precision.
To achieve the above object, the present invention provides the following solution: a high precision soil sensor is provided, comprising a main sensor unit, an environmental sensor unit, an analog-to-digital conversion module, an original data collection and storage module, a sorting module, a filter module, an environmental compensation processing module and a data packaging output module;
The analog-to-digital conversion module is respectively connected to the main sensor unit and the environmental sensor unit; the analog-to-digital conversion module is connected to the original data collection and storage module; the original data collection and storage module is connected to the sorting module; the sorting module is connected to the filter module; the filter module is connected to the environmental compensation processing module; the environmental compensation processing module is connected to the data packaging output module.
Preferably, the environmental compensation processing module compensates the data collected by the main sensor unit using the data transmitted by the environmental sensor unit.
Preferably, the filter module is used for filtration of the data transmitted by the sorting module to remove unreasonable data.
Preferably, the environmental sensor unit adopts a high precision resistance reference sensor so as to collect data of soil temperature, soil humidity, soil pH and soil conductivity.
Preferably, the main sensor unit comprises a circuit board fixing hole, a circuit board, a signal transmitting and receiving electrode plate, a cable fixing groove, a waterproof colloidal housing and a reference electrode plate;
The inductive electrode of the signal transmitting and receiving electrode plate and the ground electrode of the reference electrode plate are an integral structure with the circuit board; the cable fixing groove is located at the top of the circuit board, and
Descriptions
is provided for external power supply and signal cable of the circuit board; the waterproof colloidal housing seals and fixes the circuit board fixing hole; the circuit board fixing hole (1) has glue through the circuit board.
Preferably, the circuit structure of the main sensor unit comprises a power supply input component, a LC-type filter module, a waveform generator module, a resonance circuit, a wave transmitting electrode, an OR gate signal processing module, an RC-type filter module and a signal output component;
The power supply input component is connected to the LC-type filter module and the OR gate signal processing module; the LC-type filter module is connected to the waveform generator module; the waveform generator module is connected to the resonance circuit; the resonance circuit is connected to the wave transmitting electrode; the wave transmitting electrode is connected to the OR gate signal processing module; the OR gate signal processing module is connected to the RC-type filter module; the RC-type filter module is connected to the signal output component.
Preferably, the main sensor unit is used for measuring data of soil temperature, soil humidity, soil pH, soil fertility and heavy metal content in the soil.
The invention discloses the following technical effects: The present application discloses a high precision soil sensor, wherein the high precision soil sensor comprises a main sensor unit and an environmental sensor unit, and performs multidimensional coefficient calibration of the data collected by the main sensor unit using the data collected by the environmental sensor unit as the benchmark. The data collected by the main sensor unit and the environmental sensor unit is filtered before the coefficient calibration so as to remove invalid data. The soil sensor in this invention therefore has high measurement accuracy, and is suitable for providing reliable data for precise planting of crops.
Description of the Drawings The accompanying drawings required in the embodiments will be briefly introduced for clear understanding of the embodiments of the present invention or the technical solutions in the prior art. Obviously, the drawings described below can be understood as various embodiments of the present invention only. For those of ordinary skill in the art, without making creative work, other drawings can also be obtained from these drawings.
Fig. 1 is a schematic diagram of the connection of each module of the high precision sensor of the invention;
Fig. 2 is an outline plan of the main sensor device of the invention;
Fig. 3 is a schematic block diagram of the main environmental sensor of the
Descriptions
invention.
Where, 1 is the circuit board fixing hole; 2 is the circuit board; 3 is the signal transmitting and receiving electrode plate; 4 is the cable fixing groove; 5 is the waterproof colloidal housing; 6 is the reference electrode plate.
Detailed Description of the Preferred Embodiments The technical solutions in the embodiments will be now clearly and completely described with reference to the accompanying drawings. It is obvious that the embodiments described herein are merely part of the implementations of the present invention, and should not be considered as all the implementations. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should fall within the protection scope of the invention.
To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.
Referring Fig. 1 to 3, the present invention provides a high precision soil sensor, comprising a main sensor unit, an environmental sensor unit, an analog-to-digital conversion module, an original data collection and storage module, a sorting module, a filter module, an environmental compensation processing module and a data packaging output module. Where, the analog-to-digital conversion module is simultaneously connected to the main sensor unit and the environmental sensor unit; the analog-to-digital conversion module is connected to the original data collection and storage module; the original data collection and storage module is connected to the sorting module; the sorting module is connected to the filter module; the filter module is connected to the environmental compensation processing module; the environmental compensation processing module is connected to the data packaging output module.
The main sensor unit is used for collecting main soil data, including soil temperature, soil moisture, soil pH, soil fertility and heavy metal content in the soil.
The main sensor unit comprises a circuit board fixing hole 1, a circuit board 2, a signal transmitting and receiving electrode plate 3, a cable fixing groove 4, a waterproof colloidal housing 5 and a reference electrode plate 6.
Where, the inductive electrode of the signal transmitting and receiving electrode plate 3 and the ground electrode of the reference electrode plate 6 are an integral structure with the circuit board 2; the cable fixing groove 4 is located at the top of the circuit board 2, and is provided for external power supply and signal cable of the circuit board 2; the waterproof colloidal housing 5 seals and fixes the circuit board
Descriptions
fixing hole 1; the circuit board fixing hole 1 has glue through the circuit board 2 to make the structure of the main sensor unit more stable to adjust to high strength plug. The signal transmitting and receiving electrode plate 3 has a tapered tip, which saves more labor to insert or pull and can keep close contact with the soil. Furthermore, the signal transmitting and receiving electrode plate has a total length of 61 mm, a thickness of 2.9 mm and a spacing between the two electrode plates of 14 mm, which has good anti-interference performance.
The main sensor unit comprises a power supply input component, a LC-type filter module, a waveform generator module, a resonance circuit, a wave transmitting electrode, an OR gate signal processing module, an RC-type filter module and a signal output component;
Where, the power supply input unit is connected to the LC-type filter module and the OR gate signal processing module; the LC-type filter module is connected to the waveform generator module; the waveform generator module is connected to the resonance circuit; the resonance circuit is connected to the wave transmitting electrode; the wave transmitting electrode is connected to the OR gate signal processing module; the OR gate signal processing module is connected to the RC-type filter module; the RC-type filter module is connected to the signal output component.
The implementation principle of the main soil sensor device in the high precision soil sensor of the present invention is shown in Fig. 3. The addition of a LC filter circuit to the input end of the power supply can reduce the input ripple and input noise, and its square wave oscillation waveform generator outputs a square wave, and drives it through a resonance circuit composed of a resonance resistance and an equivalent capacitance of the transmitting electrode. Its waveform passes through a signal processing chip of the OR gate, and with an RC filter circuit adding to the output end, its signal output becomes more stable.
In the present invention, the environmental sensor unit adopts a high precision resistance reference sensor component, and the data measured by the main sensor is compensated using the environmental sensor unit as a compensation sensor. When the high precision soil sensor is in use, the main sensor and the environmental sensor both collect soil data of various categories such as soil temperature, soil humidity, soil pH, soil fertility, and heavy metal content in the soil. Then, the main sensor unit sends the collected analog signal to the analog-to-digital conversion module for processing. The analog-to-digital conversion module converts the transferred analog signal into a digital signal, and sends the converted digital signal to the original data collection and storage module for storage, then the original data collection and storage module sends the stored data to the sorting module, then the sorting module sorts the measured soil data of each category and then sends the sorted soil data to the filter module for filtration. When processing the soil data, the filter module presets threshold values for each category of soil data, and then calculates the difference between the two adjacent
Descriptions
data values in the sorted soil data one by one. In case the absolute value of the difference between the two adjacent data exceeds the preset threshold, this data is considered unreasonable, and then should be removed.
Similarly, the environmental sensor unit is processed the similar way as the main sensor, and the collected data such as soil temperature, soil humidity, soil pH, soil fertility, and heavy metal content in the soil are sequentially sent to the analog-to-digital conversion module, the original data collection and storage, the sorting module and the filter module for similar processing. The filter module then sends the filtered data from the main sensor unit and the environmental sensor unit to the environmental compensation module. The environmental compensation module uses the data collected by the environmental sensor unit as the benchmark to perform coefficient calibration on soil data of each category collected by the main sensor unit, namely multidimensional coefficient calibration, and then feeds the calibrated data to the data packaging output module for output display.
The high precision soil sensor in this invention comprises a main sensor unit and an environmental sensor unit, and performs multifunctional coefficient calibration on soil data collected by the main sensor unit using the data collected by the environmental sensor unit as the benchmark. The data collected by the main sensor unit and the environmental sensor unit is filtered before the coefficient calibration so as to remove invalid data. The soil sensor in this invention therefore has high measurement accuracy, and is suitable for providing reliable data for precise planting of crops.
It should be understood in the description of the present invention that the direction or position relationship indicated by the terms like "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc is based on the direction or position relationship shown in the drawings, and is only to facilitate the description, rather than indicating or implying that the device or element referred must have a specific orientation, or be constructed and operated in a specific orientation, and therefore can not be construed as an limitation to the present invention.
The above embodiments are only descriptions of the preferred modes of the present invention, and in no way to limit the scope of the present invention. Variations and improvements made by those of ordinary skill in the art to the technical solutions without departing from the design spirit thereto should fall within the scope of protection of the present invention.
Claims (7)
1. A high precision soil sensor is characterized in that it comprises a main sensor unit, an environmental sensor unit, an analog-to-digital conversion module, an original data collection and storage module, a sorting module, a filter module, an environmental compensation processing module and a data packaging output module;
The analog-to-digital conversion module is respectively connected to the main sensor unit and the environmental sensor unit; the analog-to-digital conversion module is connected to the original data collection and storage module; the original data collection and storage module is connected to the sorting module; the sorting module is connected to the filter module; the filter module is connected to the environmental compensation processing module; the environmental compensation processing module is connected to the data packaging output module.
2. The high precision soil sensor according to claim 1 is characterized in that the environmental compensation processing module compensates the data collected by the main sensor unit using the data transmitted by the environmental sensor unit.
3. The high precision soil sensor according to claim 1 is characterized in that the filter module is used for filtration of the data transmitted by the sorting module to remove unreasonable data.
4. The high precision soil sensor according to claim 1 is characterized in that the environmental sensor unit adopts a high precision resistance reference sensor so as to collect data of soil temperature, soil humidity, soil pH and soil conductivity.
5. The high precision soil sensor according to claim 1 is characterized in that the main sensor unit comprises a circuit board fixing hole (1), a circuit board (2), a signal transmitting and receiving electrode plate (3), a cable fixing groove (4), a waterproof colloidal housing (5) and a reference electrode plate (6);
The inductive electrode of the signal transmitting and receiving electrode plate (3) and the ground electrode of the reference electrode plate (6) are an integral structure with the circuit board (2); the cable fixing groove (4) is located at the top of the circuit board (2), and is provided for external power supply and signal cable of the circuit board (2); the waterproof colloidal housing (5) seals and fixes the circuit board fixing hole (1); the circuit board fixing hole (1) has glue through the circuit board (2).
6. The high precision soil sensor according to claim 1 is characterized in that the circuit structure of the main sensor unit comprises a power supply input component, a LC-type filter module, a waveform generator module, a resonance circuit, a wave transmitting electrode, an OR gate signal processing module, an RC-type filter module and a signal output component.
Claims
The power supply input component is connected to the LC-type filter module and the OR gate signal processing module; the LC-type filter module is connected to the waveform generator module; the waveform generator module is connected to the resonance circuit; the resonance circuit is connected to the wave transmitting electrode; the wave transmitting electrode is connected to the OR gate signal processing module; the OR gate signal processing module is connected to the RC-type filter module; the RC-type filter module is connected to the signal output component.
7.The high precision soil sensor according to claim 6 is characterized in that the main sensor unit is used for measuring data of soil temperature, soil humidity, soil pH, soil fertility and heavy metal content in the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020100881A AU2020100881A4 (en) | 2020-05-29 | 2020-05-29 | A High Precision Soil Sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020100881A AU2020100881A4 (en) | 2020-05-29 | 2020-05-29 | A High Precision Soil Sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020100881A4 true AU2020100881A4 (en) | 2020-07-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020100881A Ceased AU2020100881A4 (en) | 2020-05-29 | 2020-05-29 | A High Precision Soil Sensor |
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| Country | Link |
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| AU (1) | AU2020100881A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049650A (en) * | 2021-03-25 | 2021-06-29 | 河北工业大学 | Intelligent calibration system and method for soil humidity sensor |
-
2020
- 2020-05-29 AU AU2020100881A patent/AU2020100881A4/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049650A (en) * | 2021-03-25 | 2021-06-29 | 河北工业大学 | Intelligent calibration system and method for soil humidity sensor |
| CN113049650B (en) * | 2021-03-25 | 2023-08-18 | 河北工业大学 | Intelligent calibration system and calibration method for soil humidity sensor |
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