CN218674729U - Portable soil organic matter content detection device based on diffuse reflection spectrum - Google Patents
Portable soil organic matter content detection device based on diffuse reflection spectrum Download PDFInfo
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- CN218674729U CN218674729U CN202222548651.7U CN202222548651U CN218674729U CN 218674729 U CN218674729 U CN 218674729U CN 202222548651 U CN202222548651 U CN 202222548651U CN 218674729 U CN218674729 U CN 218674729U
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Abstract
The utility model discloses a portable soil organic matter content detection device based on diffuse reflection spectrum adopts the split type design of probe and controller, and the probe is including boss, light source, plano-convex lens, photoelectric sensor and shield plate that are in the light, and the controller includes power, singlechip, circuit board, SD card and LCD screen, its characterized in that: the visible near-infrared LED light sources are distributed in an annular mode in the probe, the bottom of the probe is provided with a plano-convex lens, the plano-convex lens is connected with the light blocking boss, the photoelectric sensor is arranged right above the light blocking boss, the shielding plate and the light blocking boss are used for preventing light emitted by the light sources from directly irradiating the photosensitive surface of the photoelectric sensor, the LED light sources and the photoelectric sensor are connected with a circuit board in the controller through wires, and the single chip microcomputer, the SD card and the liquid crystal screen respectively achieve program control, data storage and human-computer interaction. The utility model has the advantages of reasonable design, it is convenient to carry, and convenient operation has realized harmless, the short-term test of field normal position soil organic matter content.
Description
Technical Field
The utility model relates to a soil normal position detects technical field, especially relates to a portable soil organic matter content detection device based on diffuse reflection spectrum.
Background
The soil organic matter has important indication and reference significance for evaluating the quality of soil. Although the organic matter of the soil only accounts for about 5 percent of the mass of the soil, the organic matter can directly or indirectly determine the quality of the soil.
The traditional methods for measuring the content of organic matters in soil are various, a potassium dichromate volumetric method, a dry-burning method and the like are commonly used, the chemical methods need to collect a large amount of soil samples in the field, and also need to carry the samples to a laboratory for air drying, grinding and sieving for carrying out chemical analysis, so that the defects of complex operation, long time consumption, high cost and high destructiveness generally exist, and the rapid and low-cost detection requirements of modern agriculture cannot be met.
Therefore, the application provides a portable soil organic matter content detection device based on diffuse reflection spectrum.
Disclosure of Invention
In view of the above-mentioned defects and deficiencies of the prior art, an object of the present invention is to provide a portable soil organic matter content detection device based on diffuse reflection spectroscopy to solve the problems proposed in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a portable soil organic matter content detection device based on diffuse reflection spectrum, its characterized in that adopts split type design, divide into probe, controller and connecting wire, the probe is including being in the light boss, light source, annular lighting fixture, plano-convex lens, photoelectric sensor and shield panel, the controller includes power, singlechip, circuit board, SD card and LCD screen, the light source is installed on annular lighting fixture, plano-convex lens installs in the probe bottom, the boss that is in the light meets with plano-convex lens, photoelectric sensor installs directly over the boss that is in the light, shield panel and the boss that is in the light are used for preventing the light direct irradiation that the light source sent from reaching photoelectric sensor sensitization surface, the light source passes through the circuit board in wire and the controller with photoelectric sensor and links to each other, the SD card is used for storing spectral data and is used for the singlechip to transfer data, the LCD screen realizes man-machine interaction.
Preferably, the light sources are visible near-infrared LEDs, the number of the light sources is 8, and the annular lamp holder ensures that the light emitting axes of the LEDs irradiate the same point of the soil to be detected at an angle of 45 degrees.
Preferably, the circuit board comprises a single chip microcomputer control board and a light source driving board, the single chip microcomputer control board comprises a single chip microcomputer control circuit, a filter circuit, an A/D conversion circuit, an SD card data storage circuit and a liquid crystal display driving circuit, and the light source driving board provides independent constant current for each LED light source.
Preferably, the power supply, the single chip microcomputer, the circuit board and the SD card are sealed in the controller, the power supply adopts a 2000mA lithium battery and can be charged through a reserved USB port, and the single chip microcomputer is reserved with a JTAG port burning program.
A portable soil organic matter content detection device based on diffuse reflection spectrum, following beneficial effect has:
the utility model adopts a split design, is convenient to carry and operate; the structure of the probe is designed based on the visible near-infrared diffuse reflection spectrum technology, so that the speed of detecting the content of organic matters in soil is high, and the accuracy is high; man-machine interaction is realized through the liquid crystal touch display screen, and data is stored in the SD card in a TXT document format, so that subsequent data processing is facilitated; the rechargeable lithium battery is adopted for supplying power, and the USB charging port is reserved, so that a user can conveniently measure the content of organic matters in soil in situ in the field.
Drawings
Fig. 1 is the utility model discloses a portable soil organic matter content detection device's structural schematic based on diffuse reflection spectrum.
FIG. 2 is a cross-sectional view of the probe shown in FIG. 1.
Fig. 3 is an exploded view of the controller shown in fig. 1.
Reference numbers in the figures: 1. a probe; 2. a controller; 3. a connecting wire; 4. a photosensor; 5. a shield plate; 6. a light blocking boss; 7. a light source; 8. an annular lamp holder; 9. a plano-convex lens; 10. a liquid crystal screen; 11. a singlechip control panel; 12. a single chip microcomputer; 13. a light source driving board; 14. a power source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in conjunction with the accompanying drawings and detailed description of the present invention. The prior art is adopted for components not described in detail in the present invention or for the connection relationship between the components. It should be understood that these descriptions are only used for explaining the present invention, and are not used for limiting the present invention. Specific implementations of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model provides a portable soil organic matter content detection device based on diffuse reflection spectrum, its characterized in that adopts split type design, divide into probe (1), controller (2) and connecting wire (3), the probe includes photoelectric sensor (4), shield panel (5), is in the light boss (6), light source (7), ring light holder (8) and plano-convex lens (9), the controller includes LCD screen (10), circuit board, singlechip (12), SD card and power (14), install on ring light holder (8) light source (7), plano-convex lens (9) are installed in the probe bottom, be in the light boss (6) and meet with plano-convex lens (9), photoelectric sensor (4) are installed directly over boss (6) are in the light, shield panel (5) and boss (6) are in the light are used for preventing that light source (7) from sending directly shine photoelectric sensor (4) sensitization surface, light source (7) link to each other through the circuit board in wire and the controller with photoelectric sensor (4), the singlechip card is used for storing spectrum data and is used for SD (12) to transfer and gets liquid crystal display (10) are mutual.
The light sources (7) are visible near-infrared LEDs, the number of the light sources is 8, and the annular lamp holder (8) ensures that the light emitting axes of the light sources (7) emit to the same point of the soil to be measured at an angle of 45 degrees.
The circuit board comprises a single chip microcomputer control board (11) and a light source drive board (13), the single chip microcomputer control board (11) comprises a battery management circuit, a single chip microcomputer control circuit, a filter circuit, an A/D conversion circuit, an SD card data storage circuit and a liquid crystal display drive circuit, and the light source drive board (13) provides independent constant current for each light source (7).
The power supply (14), the single chip microcomputer (12), the circuit board and the SD card are sealed in the controller (2), the power supply (14) adopts a 2000mA lithium battery and can be charged through a reserved USB port, and the single chip microcomputer (12) is reserved with a JTAG port burning program.
The utility model adopts a split design, is convenient to carry and operate; the structure of the probe is designed based on the visible near-infrared diffuse reflection spectrum technology, so that the speed of detecting the content of organic matters in soil is high, and the accuracy is high; man-machine interaction is realized through the liquid crystal touch display screen, and data is stored in the SD card in a format of a TXT document, so that subsequent data processing is facilitated; the rechargeable lithium battery is adopted for supplying power, and the USB charging port is reserved, so that a user can conveniently measure the content of organic matters in soil in situ in the field.
It should be noted that the above contents are only used to illustrate one technical solution of the present invention, and not to limit the protection scope of the present invention. Therefore, those skilled in the art should not depart from the spirit and scope of the present invention by all equivalent modifications and changes that can be made without departing from the spirit and technical concept disclosed in the present invention.
Claims (4)
1. The utility model provides a portable soil organic matter content detection device based on visible near-infrared diffuse reflection spectrum, its characterized in that adopts split type design, divide into probe (1), controller (2) and connecting wire (3), the probe includes photoelectric sensor (4), shield panel (5), boss (6) that is in the light, light source (7), annular lighting fixture (8) and plano-convex lens (9), the controller includes LCD screen (10), circuit board, singlechip (12), SD card and power (14), install on annular lighting fixture (8) light source (7), plano-convex lens (9) are installed in the probe bottom, boss (6) that is in the light meet with plano-convex lens (9), photoelectric sensor (4) are installed directly over boss (6) that is in the light, shield panel (5) and boss (6) that is in the light are used for preventing that light source (7) from sending directly shining photoelectric sensor (4) sensitization surface, light source (7) link to each other through the circuit board in wire and the controller with photoelectric sensor (4), the singlechip is used for storing spectral data and SD card and is used for transferring SD (12) to get liquid crystal display man-machine interaction data (10).
2. The device for detecting the organic matter content in the soil based on the visible near-infrared diffuse reflection spectrum according to claim 1, wherein the light sources (7) are visible near-infrared LEDs (8), and the annular lamp holder (8) ensures that the light emitting axes of the light sources (7) emit to the same point of the soil to be detected at an angle of 45 degrees.
3. The device for detecting the content of organic matters in soil based on the visible near-infrared diffuse reflection spectrum according to claim 1, wherein the circuit board comprises a single chip microcomputer control board (11) and a light source driving board (13), the single chip microcomputer control board (11) comprises a battery management circuit, a single chip microcomputer control circuit, a filter circuit, an A/D conversion circuit, an SD card data storage circuit and a liquid crystal display driving circuit, and the light source driving board (13) provides independent constant current for each light source.
4. The device for detecting the content of organic matters in soil based on the visible near-infrared diffuse reflection spectrum according to claim 1, wherein the power supply (14), the single chip microcomputer (12), the circuit board and the SD card are sealed in the controller (2), the power supply (14) adopts a 2000mA lithium battery and can be charged through a reserved USB port, and the single chip microcomputer (12) is reserved with a JTAG port burning program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222548651.7U CN218674729U (en) | 2022-09-26 | 2022-09-26 | Portable soil organic matter content detection device based on diffuse reflection spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222548651.7U CN218674729U (en) | 2022-09-26 | 2022-09-26 | Portable soil organic matter content detection device based on diffuse reflection spectrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218674729U true CN218674729U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222548651.7U Active CN218674729U (en) | 2022-09-26 | 2022-09-26 | Portable soil organic matter content detection device based on diffuse reflection spectrum |
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| Country | Link |
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| CN (1) | CN218674729U (en) |
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- 2022-09-26 CN CN202222548651.7U patent/CN218674729U/en active Active
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