CN111999340A - Plant leaf moisture and ion distribution imaging device and method based on microwave heating - Google Patents
Plant leaf moisture and ion distribution imaging device and method based on microwave heating Download PDFInfo
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Abstract
The invention discloses a plant leaf moisture and ion distribution imaging device and method based on microwave heating, wherein the device comprises a microwave source, an antenna, a carrier plate, an infrared thermal imager and a data processing unit; the device comprises an infrared thermal imager, a data processing unit, a microwave source and an antenna, wherein the infrared thermal imager, the data processing unit, the microwave source and the antenna are sequentially in communication connection; the device is a non-contact high-resolution nondestructive temperature imaging detection technology based on the infrared imaging technology after microwave heating, can generate high-quality images, can provide a plurality of information of measurement targets, and makes up the defects of knowing the microcosmic water and ion distribution of the plant leaves; the device has the advantages of small structure volume, light weight, stable performance, long service life, convenient operation, low manufacturing cost, low power consumption and no damage to plant blades.
Description
Technical Field
The invention belongs to the technical field of microwave heating and infrared thermal imaging, and particularly relates to a device and a method for imaging the water content and ion distribution of plant leaves based on microwave heating.
Background
The microwave heating technology is a new technology developed in the sixty-seven decades of the twentieth century, and is widely applied to the fields of chemistry, new materials, microelectronics and the like at present. In recent years, it has become a hot research in the biomedical field. The main application fields include microwave ablation, microwave thermal imaging and the like.
When the plant leaves are heated by microwaves, the generated thermal images carry the related information such as the moisture content and the ion concentration in the irradiated plant leaves and other structures. In order to receive microwave thermal signals on tissues, an infrared thermal imager is required to receive the microwave thermal signals, since objects with the temperature above absolute zero can radiate infrared rays due to molecular motion of the objects, the infrared thermal imager converts invisible infrared energy emitted by the tissues into visible thermal images, different colors on the thermal images represent different temperatures without images, and the infrared thermal imager receives infrared radiation energy distribution patterns of a detected object by using an infrared detector and an optical imaging object environment and reflects the infrared radiation energy distribution patterns onto a photosensitive element of the infrared detector, so that an infrared thermal image is obtained, and the thermal image corresponds to a thermal distribution field on the surface of the tissues. The obtained thermal image data is transmitted to a computer, and finally, the thermal image is processed and analyzed, so that the spatial distribution information of the microwave energy relative absorption of different parts of the tissue can be obtained.
At present, in the field of plant leaf moisture and ion content distribution measurement, chemical methods are mostly used for analysis and measurement. The invention provides a technology for imaging the distribution of water and ions of plant leaves based on infrared imaging after microwave heating, which comprises the following steps: compared with a chemical method, the method is rapid and nondestructive, and can realize the visualization of the moisture and ion content of the plant leaves. Therefore, the method is not only beneficial to the detailed research of the plant moisture and the ion transport mechanism, but also can be used for developing the research of the plant growth tracking assistance to the agricultural plant growth problem.
Disclosure of Invention
Aiming at the defects in the prior art, the plant leaf moisture and ion distribution imaging device based on microwave heating solves the problems that when the plant leaf moisture and ion distribution is obtained by adopting a traditional chemical method, the efficiency is low and the plant leaf is easily damaged.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: the plant leaf moisture and ion distribution imaging device based on microwave heating comprises a microwave source, an antenna, a carrier plate, an infrared thermal imager and a data processing unit;
the infrared thermal imager, the data processing unit, the microwave source and the antenna are sequentially in communication connection, plant leaves are arranged on the carrier sheet, the infrared thermal imager is arranged right above the plant leaves, and the antenna is arranged right below the glass slide;
the microwave source is used for generating a microwave signal; the antenna is used for receiving microwave signals generated by the microwave source and radiating the microwave signals to the plant leaves; the glass slide is used for bearing plant leaves; the infrared thermal imager is used for collecting an infrared image formed by infrared thermal energy radiated outwards by the plant leaves and transmitting the infrared image to the data processing unit; and the data processing unit is used for processing and analyzing the infrared image to obtain a water and ion distribution image of the plant leaf.
Furthermore, the power frequency of the microwave source is 0.1-300 GHz, and the power is 0.1-10W.
Further, the antenna is a dipole antenna, a horn antenna, a helical antenna, a patch antenna, an open waveguide antenna, a Vivaldi antenna, or a dielectric-filled antenna.
Further, the plant leaves are placed on a carrier sheet directly above the optimal heating zone with the antenna energy distribution in the 3dB lobe.
Furthermore, the pixel of the infrared imager is not less than 200 multiplied by 100, the temperature measuring range is 0-60 ℃, and the sensitivity is not less than 0.1 ℃.
A plant leaf moisture and ion distribution imaging method based on microwave heating comprises the following steps:
s1, fixing and placing the plant leaves on a carrier sheet;
s2, starting a microwave source for preheating, and setting parameters for device initialization;
s3, radiating preset microwave signals generated by the microwave source to the plant leaves, collecting infrared images of the plant leaves through an infrared thermal imager, and transmitting the infrared images to the data processing unit;
and S4, processing and analyzing the infrared image through the data processing unit to generate a water and ion distribution image of the plant leaf.
Further, the step S3 is specifically:
s31, sending two paths of pulse time sequence signals to a microwave source and an infrared thermal imager respectively through a data processing unit;
s32, generating microwave signals according to the pulse time sequence signals received by the microwave source, radiating the generated microwave signals to the plant leaves through the antenna, and heating the plant leaves;
and S33, according to the pulse time sequence signal received by the infrared thermal imager, starting to collect the heated infrared image of the plant leaf, and transmitting the infrared image to the data processing unit.
Further, in step S32, the microwave source emits a microwave signal according to the received pulse timing signal and the preset power and repetition frequency corresponding thereto.
The invention has the beneficial effects that:
(1) by utilizing the technology of imaging the water and ion distribution of the plant leaves based on infrared imaging after microwave heating, the method not only can be helpful for researching the water and ion transport mechanism of the plant in detail, but also can be helpful for researching the problem of agricultural plant growth by tracking the plant growth for a long time.
(2) The microwave heating-based infrared imaging technology is a non-contact high-resolution nondestructive temperature imaging detection technology, can generate high-quality images, can provide a plurality of information of measurement targets, and makes up for the deficiency of knowledge on the microcosmic water and ion distribution of plant leaves.
(3) The data processing unit can not only carry out non-quantitative plant leaf temperature image reconstruction, but also carry out quantitative image reconstruction and data analysis aiming at plant leaf moisture and ion distribution.
(4) The system device has the advantages of small volume, light weight, stable performance, long service life, convenient operation, low manufacturing cost and low power consumption, and does not damage plant blades.
Drawings
Fig. 1 is a structural diagram of a plant leaf moisture and ion distribution imaging device based on microwave heating provided by the invention.
FIG. 2 is a flow chart of a method for imaging the water content and ion distribution of plant leaves based on microwave heating provided by the invention.
Fig. 3 is a schematic diagram showing the comparison between the thermal imaging result (a) of the heated plant leaves by using the microwave oven and the mri (b) imaging result of the plants before heating according to the present invention.
Wherein: 1. a data processing unit; 2. a microwave source; 3. an antenna; 4. a glass slide; 5. an infrared thermal imager.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Example 1:
as shown in fig. 1, the device for imaging the moisture and ion distribution of plant leaves based on microwave heating comprises a microwave source 2, an antenna 3, a carrier plate, an infrared thermal imager and a data processing unit 1;
the device comprises an infrared thermal imager, a data processing unit 1, a microwave source 2 and an antenna 3 which are sequentially in communication connection, wherein plant leaves are arranged on a carrier sheet, the infrared thermal imager is arranged right above the plant leaves, and the antenna 3 is arranged right below a glass slide 4;
the microwave source 2 is used for generating a microwave signal; the antenna 3 is used for receiving the microwave signal generated by the microwave source 2 and radiating the microwave signal to the plant leaves; the glass slide 4 is used for bearing plant leaves; the infrared thermal imager is used for collecting an infrared image formed by infrared thermal energy radiated outwards by the plant leaves and transmitting the infrared image to the data processing unit 1; the data processing unit 1 is used for processing and analyzing the infrared image to obtain a water and ion distribution image of the plant leaf.
The working principle of the moisture and ion distribution imaging device in the embodiment of the invention is as follows: the data processing unit 1 sends out a time sequence pulse signal to trigger the microwave source 2 to generate a microwave signal, the microwave signal is transmitted to the plant leaves through the antenna 3, the parts of the plant leaves with different moisture and ion contents have differences on microwave absorption, and a thermal signal is generated through the microwave thermal effect to convert the electromagnetic energy of the microwave into heat energy, the thermal signal reflects the characteristics of the differences on the microwave absorption of different areas in the plant leaves, the thermal signal generated by the plant leaves is captured by the infrared thermal imager 5, the obtained image data is transmitted to the computer and stored in the data processing unit 1, the data processing unit 1 reconstructs the moisture and ion difference distribution of different areas in the plant leaves by using an algorithm, and the ion distribution imaging of the plant leaves and the moisture is realized.
The microwave source 2 in the embodiment provides microwaves for exciting to generate microwave thermal signals, the pulse power supply and the microwave electron tube are main components of the microwave source 2, the power frequency of the microwave source 2 is 0.1-300 GHz, and the power is 0.1-10W; the antenna 3 is used for radiating microwave signals, the antenna 3 is a dipole antenna, a horn antenna helical antenna, a patch antenna, an open waveguide antenna, a Vivaldi antenna or a dielectric filling antenna so as to provide more uniform field distribution and realize uniform heating of plant leaves, and the antenna is preferably a square dipole antenna, the working frequency is 3.0GHz, the caliber is 64mm, and the gain is 7 dB; according to the size of the plant leaf, the plant leaf is placed on a carrier sheet right above an optimal heating area with 3dB lobe energy distribution of an antenna 3 by combining simulation analysis, so that the plant leaf is uniformly heated. The infrared imager in the embodiment is an infrared detector, the pixel of the infrared imager is not less than 200 multiplied by 100, the temperature measuring range is-20 to 100 ℃, and the sensitivity is not less than 0.1 ℃; the glass slide 4 in the embodiment is used for bearing and fixing plant leaves, has the functions of stability, dryness, smoothness, cleanness, easy cleaning and the like, and is sterilized in advance when in use; the data processing unit 1 is used for analyzing signals collected by the infrared thermal imager, extracting and analyzing characteristic attributes of a temperature distribution image of a plant leaf, analyzing leaf and ion distribution of the plant, storing data and simultaneously controlling the synchronous operation of the whole device.
Example 2:
corresponding to the imaging device in the above embodiment 1, the present embodiment provides a method for imaging moisture and ion distribution of plant leaves based on microwave heating, comprising the following steps:
s1, fixing and placing the plant leaves on a carrier sheet;
s2, starting a microwave source for preheating, and setting parameters for device initialization;
s3, radiating preset microwave signals generated by the microwave source to the plant leaves, collecting infrared images of the plant leaves through an infrared thermal imager, and transmitting the infrared images to the data processing unit;
and S4, processing and analyzing the infrared image through the data processing unit to generate a water and ion distribution image of the plant leaf.
The step S3 is specifically:
s31, sending two paths of pulse time sequence signals to a microwave source and an infrared thermal imager respectively through a data processing unit;
s32, generating microwave signals according to the pulse time sequence signals received by the microwave source, radiating the generated microwave signals to the plant leaves through the antenna, and heating the plant leaves;
and S33, according to the pulse time sequence signal received by the infrared thermal imager, starting to collect the heated infrared image of the plant leaf, and transmitting the infrared image to the data processing unit.
In S32, the microwave source emits a microwave signal according to the received pulse timing signal and the corresponding preset power and repetition frequency. The microwave source stores the corresponding relation of generating microwave signals according to which power and repetition frequency when receiving different pulse time sequence signals.
In the step S3, the microwave source generates a microwave signal, the microwave signal is radiated to the plant leaf via the antenna, moisture and ions absorb the microwave energy and convert the microwave energy into heat energy, different temperature distributions are generated on the plant leaf due to different microwave absorption by different moisture and ion distributions at different parts of the plant leaf, the infrared energy radiated outwards by the leaf with the temperature distributions is captured by the infrared thermal imager above, and the acquired image data is transmitted to the data processing unit by the infrared thermal imager.
Example 3:
this example provides the comparison between the thermal imaging result (a) of the heated plant leaf by using the microwave oven and the mri (b) imaging result of the plant before heating as shown in fig. 3, and it can be seen from the figure that the infrared image (a) of the plant leaf obtained by the method of the present invention reflects the distribution of the veins of the whole leaf, the veins are relatively complete, and the mri (b) image has partial loss near the petiole due to the effects of the thickness of the layer and the scanning angle. Meanwhile, compared with an MRI (b) image, the infrared image obtained by the method has higher signal-to-noise ratio, reflects the moisture content and the ion distribution, and has a larger application prospect on researches such as plant development and the like.
Claims (8)
1. A plant leaf moisture and ion distribution imaging device based on microwave heating is characterized by comprising a microwave source (2), an antenna (3), a carrier plate, an infrared thermal imager (5) and a data processing unit (1);
the infrared thermal imager, the data processing unit (1), the microwave source (2) and the antenna (3) are sequentially in communication connection, plant leaves are arranged on the carrier sheet, the infrared thermal imager (5) is arranged right above the plant leaves, and the antenna (3) is arranged right below the glass slide (4);
the microwave source (2) is used for generating a microwave signal; the antenna (3) is used for receiving the microwave signal generated by the microwave source (2) and radiating the microwave signal to the plant leaves; the glass slide (4) is used for bearing plant leaves; the infrared thermal imager (5) is used for collecting an infrared image formed by infrared thermal energy radiated outwards by the plant leaves and transmitting the infrared image to the data processing unit (1); the data processing unit (1) is used for processing and analyzing the infrared image to obtain a water and ion distribution image of the plant leaf.
2. The microwave heating-based plant leaf moisture and ion distribution imaging device is characterized in that the power frequency of the microwave source (2) is 0.1-300 GHz, and the power is 0.1-10W.
3. The microwave heating-based plant leaf moisture and ion distribution imaging device according to claim 1, characterized in that the antenna (3) is a dipole antenna, a horn antenna, a helical antenna, a patch antenna, an open waveguide antenna, a Vivaldi antenna or a dielectric filled antenna.
4. The microwave heating-based plant leaf moisture and ion distribution imaging apparatus according to claim 3, characterized in that the plant leaf is placed on a carrier sheet directly above the optimal heating zone within the 3dB lobe of the antenna (3) energy distribution.
5. The microwave heating-based plant leaf moisture and ion distribution imaging device as claimed in claim 1, wherein the pixels of the infrared imager are not less than 200 x 100, the temperature measurement range is 0-60 ℃, and the sensitivity is not less than 0.1 ℃.
6. The plant leaf moisture and ion distribution imaging method based on microwave heating is characterized by comprising the following steps of:
s1, fixing and placing the plant leaves on a carrier sheet;
s2, starting a microwave source for preheating, and setting parameters for device initialization;
s3, radiating preset microwave signals generated by the microwave source to the plant leaves, collecting infrared images of the plant leaves through an infrared thermal imager, and transmitting the infrared images to the data processing unit;
and S4, processing and analyzing the infrared image through the data processing unit to generate a water and ion distribution image of the plant leaf.
7. The microwave heating-based plant leaf moisture and ion distribution imaging method as claimed in claim 6, wherein the step S3 is specifically as follows:
s31, sending two paths of pulse time sequence signals to a microwave source and an infrared thermal imager respectively through a data processing unit;
s32, generating microwave signals according to the pulse time sequence signals received by the microwave source, radiating the generated microwave signals to the plant leaves through the antenna, and heating the plant leaves;
and S33, according to the pulse time sequence signal received by the infrared thermal imager, starting to collect the heated infrared image of the plant leaf, and transmitting the infrared image to the data processing unit.
8. The method for imaging moisture and ion distribution in plant leaves based on microwave heating as claimed in claim 7, wherein in step S32, the microwave source emits microwave signals according to the received pulse timing signals and the corresponding preset power and repetition frequency.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916076A (en) * | 2021-01-22 | 2021-06-08 | 中国石油大学(华东) | Micro-fluidic chip experiment platform with visualization and infrared thermal imaging functions |
| CN113116513A (en) * | 2021-02-24 | 2021-07-16 | 电子科技大学 | Microwave ablation antenna based on substrate integrated coaxial cable |
| CN113433141A (en) * | 2021-06-25 | 2021-09-24 | 电子科技大学 | Alcohol content detection device and method based on microwave thermoacoustic technology |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180839A (en) * | 1996-08-01 | 1998-05-06 | 株式会社佐竹制作所 | Content measuring apparatus for plant leaf |
| JP2001124706A (en) * | 1999-10-28 | 2001-05-11 | Kawasaki Kiko Co Ltd | Method and device for measuring water |
| CN101315339A (en) * | 2007-05-28 | 2008-12-03 | 迈康有限公司 | Using multi-frequency microwave to confirm moisture content of material module |
| CN104188070A (en) * | 2014-07-14 | 2014-12-10 | 浙江大学 | Material-surface-temperature-accurate-control vegetable microwave dryer and method |
| CN104677944A (en) * | 2015-03-25 | 2015-06-03 | 何赟泽 | Microwave frequency-modulation thermal wave imaging system and microwave frequency-modulation thermal wave imaging method |
| CN204740342U (en) * | 2015-05-17 | 2015-11-04 | 深圳市一体太赫兹科技有限公司 | Fuse image device that infrared temperature measurement and microwave detected |
| CN107543843A (en) * | 2017-09-18 | 2018-01-05 | 重庆交通大学 | A kind of steel construction rust detection device and method based on microwave thermal imaging |
| CN108449964A (en) * | 2015-10-23 | 2018-08-24 | 松下知识产权经营株式会社 | The moisture amount estimation apparatus of the moisture amount estimation method at the position of plant and the position of plant |
| US20180267008A1 (en) * | 2017-03-16 | 2018-09-20 | Airscout Inc. | Systems and methods for producing agricultural prescriptions |
| CN108593595A (en) * | 2018-05-03 | 2018-09-28 | 苏州高新区建金建智能科技有限公司 | Leaf water detecting system based near infrared spectrum irradiation technique |
| US20190191632A1 (en) * | 2017-12-27 | 2019-06-27 | X Development Llc | Plant phenotyping techniques using optical measurements, and associated systems and methods |
-
2020
- 2020-08-12 CN CN202010804456.9A patent/CN111999340A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1180839A (en) * | 1996-08-01 | 1998-05-06 | 株式会社佐竹制作所 | Content measuring apparatus for plant leaf |
| JP2001124706A (en) * | 1999-10-28 | 2001-05-11 | Kawasaki Kiko Co Ltd | Method and device for measuring water |
| CN101315339A (en) * | 2007-05-28 | 2008-12-03 | 迈康有限公司 | Using multi-frequency microwave to confirm moisture content of material module |
| CN104188070A (en) * | 2014-07-14 | 2014-12-10 | 浙江大学 | Material-surface-temperature-accurate-control vegetable microwave dryer and method |
| CN104677944A (en) * | 2015-03-25 | 2015-06-03 | 何赟泽 | Microwave frequency-modulation thermal wave imaging system and microwave frequency-modulation thermal wave imaging method |
| CN204740342U (en) * | 2015-05-17 | 2015-11-04 | 深圳市一体太赫兹科技有限公司 | Fuse image device that infrared temperature measurement and microwave detected |
| CN108449964A (en) * | 2015-10-23 | 2018-08-24 | 松下知识产权经营株式会社 | The moisture amount estimation apparatus of the moisture amount estimation method at the position of plant and the position of plant |
| US20180267008A1 (en) * | 2017-03-16 | 2018-09-20 | Airscout Inc. | Systems and methods for producing agricultural prescriptions |
| CN107543843A (en) * | 2017-09-18 | 2018-01-05 | 重庆交通大学 | A kind of steel construction rust detection device and method based on microwave thermal imaging |
| US20190191632A1 (en) * | 2017-12-27 | 2019-06-27 | X Development Llc | Plant phenotyping techniques using optical measurements, and associated systems and methods |
| CN108593595A (en) * | 2018-05-03 | 2018-09-28 | 苏州高新区建金建智能科技有限公司 | Leaf water detecting system based near infrared spectrum irradiation technique |
Non-Patent Citations (1)
| Title |
|---|
| MIKE GOLIO 等: "《射频与微波手册》", 31 July 2006, 国防工业出版社, pages: 381 - 386 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916076A (en) * | 2021-01-22 | 2021-06-08 | 中国石油大学(华东) | Micro-fluidic chip experiment platform with visualization and infrared thermal imaging functions |
| WO2022156052A1 (en) * | 2021-01-22 | 2022-07-28 | 中国石油大学(华东) | Microfluidic chip experimental platform having visualization and infrared thermal imaging functions |
| CN113116513A (en) * | 2021-02-24 | 2021-07-16 | 电子科技大学 | Microwave ablation antenna based on substrate integrated coaxial cable |
| CN113433141A (en) * | 2021-06-25 | 2021-09-24 | 电子科技大学 | Alcohol content detection device and method based on microwave thermoacoustic technology |
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