CN104374732A - System for monitoring physiological water in crop leaves - Google Patents
System for monitoring physiological water in crop leaves Download PDFInfo
- Publication number
- CN104374732A CN104374732A CN201410682332.2A CN201410682332A CN104374732A CN 104374732 A CN104374732 A CN 104374732A CN 201410682332 A CN201410682332 A CN 201410682332A CN 104374732 A CN104374732 A CN 104374732A
- Authority
- CN
- China
- Prior art keywords
- module
- sensor
- crop
- transmitted
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 4
- 238000009659 non-destructive testing Methods 0.000 claims description 18
- 230000007613 environmental effect Effects 0.000 claims description 12
- 230000003750 conditioning effect Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037039 plant physiology Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to the technical field of nondestructive monitoring of physiological information of crops, and discloses a system for monitoring physiological water in crop leaves. The system comprises a nondestructive leaf water content detection module, wherein the nondestructive leaf water content detection module comprises an infrared light source emitter, a detection sample table and a transmitted/reflected light intensity detection component; the detection sample table is made of transparent glass; a narrow-band filter is arranged on the surface of the sample table; infrareds emitted by the infrared light source emitter are projected on a sample; the transmitted/reflected light intensity detection component is respectively used for detecting the intensity of transmitted/reflected light of the infrareds transmitted/reflected by the sample. The system disclosed by the invention can be used for quickly and accurately acquiring water condition information of the crops, is easy to operate, can realize the nondestructive detection and has the advantages of being small in size, high in sensitivity and quick to response.
Description
Technical Field
The invention relates to the technical field of nondestructive testing of physiological information of crops, in particular to a physiological moisture monitoring system for crop leaves.
Background
Moisture is an important substance for crop growth and is also the largest consumable in the crop growth process. The water content of the plant leaves is an important physiological index for representing the water information of the plant body, and the plant leaves are widely applied to the research of plant physiology and drought resistance. How to rapidly and accurately acquire the moisture condition information of plants, especially the water content of plant leaves, has very important significance for researching physiological and biochemical reactions of crops, mastering the growth and development processes of plants, guiding water-saving irrigation and the like. The traditional plant leaf moisture measuring method comprises a drying method, a distillation method, a titration method, an electrical measurement method and the like, the existing methods need to collect samples and then measure the samples under the condition of a laboratory, generally, the time consumption is long, the operation is complex, the detection cost is high, the measured data is single, only scientific research significance is achieved, and the method is not suitable for monitoring and adjusting the growth condition of crops on site. Therefore, the rapid, real-time and accurate measurement of the moisture status of crop growth, especially the moisture content of plant leaves, is a problem to be solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of how to quickly and simply detect the water content of the crop leaves and realize online nondestructive detection.
In order to solve the above technical problem, the present invention provides a crop leaf physiological water monitoring system, which comprises: a nondestructive testing module for water content of the blade; the nondestructive testing module for the water content of the blade comprises an infrared light source emitter, a testing sample stage and a transmission/reflection light intensity testing part; the detection sample table is made of transparent glass, and a narrow-band filter is arranged on the surface of the sample table; the infrared ray emitted by the infrared ray light source emitter is projected on a sample, and the transmitted/reflected light intensity detection components respectively detect the intensity of the transmitted/reflected light of the sample to the infrared ray.
Preferably, the nondestructive testing module for water content of the blade further comprises: the device comprises an amplifier, a conditioning circuit, an analog-to-digital converter and a microprocessor; wherein,
the output end of the transmission/reflection light intensity detection component is connected with the amplifier and the conditioning circuit; the output end of the amplifier and the conditioning circuit is connected with the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the microprocessor.
Preferably, the infrared light source emitter is an infrared light emitting diode.
Preferably, the transmitted/reflected light intensity detecting means includes a photodiode and an optical signal receiving circuit.
Preferably, the system further comprises: the crop environmental information sensor module is composed of environmental information sensor nodes arranged around a crop growing environment.
Preferably, the sensor module includes: the system comprises an air temperature and humidity sensor, an illumination sensor, a carbon dioxide sensor, a wind speed sensor, a soil temperature and humidity sensor, a blade temperature sensor and a runoff sensor.
Preferably, the system further comprises: the device comprises a main control module, a memory and a display screen; the main control module is connected with the nondestructive testing module for the water content of the blades and the sensor module for the crop environmental information, calls data detected by the detection module and the sensor module, and stores the data in a memory.
Preferably, the memory is a FLASH memory; the display screen is an LCD liquid crystal display screen.
Preferably, the system further comprises a power supply module connected with the leaf water content nondestructive testing module, the crop environment information sensor module, the main control module, the memory and the display screen.
Preferably, the power module comprises a solar panel and a storage battery connected with the solar panel through a wire.
The beneficial effects of the above technical scheme are: the invention can detect the moisture content of the crop leaves in a real-time and nondestructive manner, can also synchronously monitor the environmental information closely related to the moisture content of the crops, and stores the detected data in the memory of the sensor system. The system has the advantages of small volume, high sensitivity and quick response, and can effectively assist agricultural scientific research personnel, agricultural technical workers and farmers to diagnose the water content and the water shortage condition of crops on site in time and guide efficient water-saving irrigation.
Drawings
FIG. 1 is a schematic diagram of a nondestructive testing module for moisture content of a leaf according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of the general structure of a physiological moisture monitoring system for crop leaves according to a preferred embodiment of the present invention;
FIG. 3 is a schematic structural diagram of synchronous detection of a crop environment information sensor node and a nondestructive testing module for water content of leaves in an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
The leaf moisture measurement in the prior art is mainly realized through the component analysis of a sample, and the sample is usually collected and preprocessed, so that the requirement on the test environment is high. The invention adopts an optical mode, and the moisture content is measured in a non-contact way by analyzing the transflection of the blade to infrared rays, and the scheme is easy to implement and has strong real-time performance, thereby being widely applied to field operation. The structure and function of the crop leaf physiological water monitoring system of the present invention will be described with reference to fig. 1 to 3.
As shown in FIG. 1, in one embodiment of the present invention, the crop leaf physiological moisture monitoring system mainly comprises a leaf moisture nondestructive testing module, wherein the leaf moisture nondestructive testing module comprises an infrared light source emitter, a testing sample stage and a transmitted/reflected light intensity testing component; the detection sample table is made of transparent glass, and a narrow-band filter (preventing natural light from influencing transmitted light) is arranged on the surface of the sample table; the infrared ray emitted by the infrared ray light source emitter is projected on a sample (a crop leaf), and the transmitted/reflected light intensity detection components respectively detect the transmitted/reflected light intensity of the sample to the infrared ray. The invention determines the water content of the crop leaves by comparing the light intensity of the transmitted/reflected light, wherein the corresponding relation between the water content of different crop leaves and the light intensity of the transmitted/reflected light is determined and corrected by a preset test.
Furthermore, since the light intensity is an analog quantity, and needs to be converted into a digital quantity by a certain means for processing and quantitative analysis, the nondestructive testing module for water content in the blade shown in fig. 1 further includes: the device comprises an amplifier, a conditioning circuit, an analog-to-digital converter and a microprocessor; the output end of the transmission/reflection light intensity detection component is connected with the amplifier and the conditioning circuit, and the analog signal of the light intensity is amplified and conditioned; the output end of the amplifier and the conditioning circuit is connected with the analog-to-digital converter and used for converting the analog signal into a digital signal; the output end of the analog-to-digital converter is connected with the microprocessor and used for processing and quantitatively analyzing the digital signals.
Preferably, the infrared light source emitter is an infrared light emitting diode; the transmitted/reflected light intensity detection part includes a photodiode and an optical signal receiving circuit.
Referring again to fig. 2, the physiological moisture monitoring system of the present invention can further monitor the growing environment of the crop for more detailed analysis, guidance and/or intervention. In the preferred embodiment of fig. 2, the monitoring system of the present invention further comprises: crop environmental information sensor module, it comprises the environmental information sensor node of setting around the crop growing environment, includes: air temperature and humidity sensor, illumination sensor, carbon dioxide sensor, wind speed sensor, soil temperature and humidity sensor, blade temperature sensor, runoff sensor and the like. And all sensors are integrated through a system to carry out comprehensive detection. Taking rice crops as an example, the sensor nodes are arranged above the rice field, so that crop environment information can be synchronously recorded, and the influence of the crop environment on the physiological moisture of the leaves can be monitored in an auxiliary manner.
Fig. 2 still further includes: the device comprises a main control module, a memory and a display screen. The main control module is connected with the blade water content nondestructive testing module and the crop environmental information sensor module, calls data of the blade water content nondestructive testing module and detection of each sensor, and stores the data into the memory. The memory is a FLASH memory; the display screen is an LCD liquid crystal display screen.
As shown in FIG. 3, the monitoring system further comprises a power supply module connected with the nondestructive testing module for water content of the blades, the crop environment information sensor module, the main control module, the memory and the display screen. Preferably, the power module comprises a solar panel and a storage battery connected with the solar panel through a wire.
It can be seen from the above embodiments that the monitoring system of the present invention can perform nondestructive detection on the moisture content of crop leaves in real time, and can also synchronously monitor environmental information closely related to the moisture content of crops, and store the detected data in the memory of the sensor system. The system has the advantages of small volume, high sensitivity and quick response, and can effectively assist agricultural scientific research personnel, agricultural technical workers and farmers in diagnosing the water content and the water shortage condition of crops and guiding efficient water-saving irrigation.
Although the present invention has been described in connection with preferred embodiments, it will be understood by those skilled in the art that the methods and systems of the present invention are not limited to the embodiments described in the detailed description, and various modifications, additions, and substitutions are possible, without departing from the spirit and scope of the invention as defined in the accompanying claims.
Claims (10)
1. A crop leaf physiological moisture monitoring system. Characterized in that the system comprises: a nondestructive testing module for water content of the blade; wherein,
the nondestructive testing module for the water content of the blade comprises an infrared light source emitter, a testing sample stage and a transmission/reflection light intensity testing part;
the detection sample table is made of transparent glass, and a narrow-band filter is arranged on the surface of the sample table;
the infrared ray emitted by the infrared ray light source emitter is projected on a sample, and the transmitted/reflected light intensity detection components respectively detect the intensity of the transmitted/reflected light of the sample to the infrared ray.
2. The system of claim 1, wherein the blade moisture content non-destructive inspection module further comprises: the device comprises an amplifier, a conditioning circuit, an analog-to-digital converter and a microprocessor; wherein,
the output end of the transmission/reflection light intensity detection component is connected with the amplifier and the conditioning circuit; the output end of the amplifier and the conditioning circuit is connected with the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the microprocessor.
3. The system of claim 1, wherein the infrared light source emitter is an infrared light emitting diode.
4. The system of claim 1, wherein the transmitted/reflected light intensity detecting means includes a photodiode and an optical signal receiving circuit.
5. The system of claim 1, wherein the system further comprises: the crop environmental information sensor module is composed of environmental information sensor nodes arranged around a crop growing environment.
6. The system of claim 5, wherein the sensor module comprises: the system comprises an air temperature and humidity sensor, an illumination sensor, a carbon dioxide sensor, a wind speed sensor, a soil temperature and humidity sensor, a blade temperature sensor and a runoff sensor.
7. The system of claim 5, wherein the system further comprises: the device comprises a main control module, a memory and a display screen; wherein,
the main control module is connected with the nondestructive testing module for the water content of the blades and the sensor module for the crop environmental information, calls data detected by the testing module and the sensor module, and stores the data in a memory.
8. The system of claim 7, wherein the memory is a FLASH memory; the display screen is an LCD liquid crystal display screen.
9. The system of claim 7, further comprising a power module connected to the non-destructive testing of leaf moisture content module, the crop environmental information sensor module, the master control module, the memory, and the display screen.
10. The system of claim 9, wherein the power module comprises a solar panel and a battery connected to the solar panel by a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682332.2A CN104374732A (en) | 2014-11-24 | 2014-11-24 | System for monitoring physiological water in crop leaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682332.2A CN104374732A (en) | 2014-11-24 | 2014-11-24 | System for monitoring physiological water in crop leaves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104374732A true CN104374732A (en) | 2015-02-25 |
Family
ID=52553779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410682332.2A Pending CN104374732A (en) | 2014-11-24 | 2014-11-24 | System for monitoring physiological water in crop leaves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104374732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638306A (en) * | 2020-06-11 | 2020-09-08 | 中国农业科学院农业信息研究所 | Crop dynamic monitoring method, device, equipment and system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061898A1 (en) * | 1998-05-21 | 1999-12-02 | Elan Group Ltd. | An optical apparatus |
| CN101210876A (en) * | 2007-12-25 | 2008-07-02 | 浙江大学 | Rice nutrient information measuring method based on visible/near infrared multispectral imaging |
| WO2008118080A1 (en) * | 2007-03-23 | 2008-10-02 | Heliospectra Aktiebolag | System for modulating plant growth or attributes |
| CN101403689A (en) * | 2008-11-20 | 2009-04-08 | 北京航空航天大学 | Nondestructive detection method for physiological index of plant leaf |
| CN201434690Y (en) * | 2009-03-23 | 2010-03-31 | 浙江托普仪器有限公司 | Agricultural environment information monitoring and recording device |
| CN101936882A (en) * | 2010-08-10 | 2011-01-05 | 江苏大学 | Nondestructive testing method and device for nitrogen and water of crops |
| CN101968443A (en) * | 2010-09-07 | 2011-02-09 | 中国农业大学 | Nondestructive detection device and method of water content of reflective near infrared plant leaf |
| CN101975759A (en) * | 2010-09-07 | 2011-02-16 | 中国农业大学 | Transmission-type nondestructive measuring device and method of water content of plant leaves |
| CN203455275U (en) * | 2013-08-16 | 2014-02-26 | 广州隆润光学仪器有限公司 | Near-infrared optical fiber type moisture measuring device |
| CN204228602U (en) * | 2014-11-24 | 2015-03-25 | 中国农业科学院农业信息研究所 | Crop leaf physiological moisture monitoring system |
-
2014
- 2014-11-24 CN CN201410682332.2A patent/CN104374732A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061898A1 (en) * | 1998-05-21 | 1999-12-02 | Elan Group Ltd. | An optical apparatus |
| WO2008118080A1 (en) * | 2007-03-23 | 2008-10-02 | Heliospectra Aktiebolag | System for modulating plant growth or attributes |
| CN101210876A (en) * | 2007-12-25 | 2008-07-02 | 浙江大学 | Rice nutrient information measuring method based on visible/near infrared multispectral imaging |
| CN101403689A (en) * | 2008-11-20 | 2009-04-08 | 北京航空航天大学 | Nondestructive detection method for physiological index of plant leaf |
| CN201434690Y (en) * | 2009-03-23 | 2010-03-31 | 浙江托普仪器有限公司 | Agricultural environment information monitoring and recording device |
| CN101936882A (en) * | 2010-08-10 | 2011-01-05 | 江苏大学 | Nondestructive testing method and device for nitrogen and water of crops |
| CN101968443A (en) * | 2010-09-07 | 2011-02-09 | 中国农业大学 | Nondestructive detection device and method of water content of reflective near infrared plant leaf |
| CN101975759A (en) * | 2010-09-07 | 2011-02-16 | 中国农业大学 | Transmission-type nondestructive measuring device and method of water content of plant leaves |
| CN203455275U (en) * | 2013-08-16 | 2014-02-26 | 广州隆润光学仪器有限公司 | Near-infrared optical fiber type moisture measuring device |
| CN204228602U (en) * | 2014-11-24 | 2015-03-25 | 中国农业科学院农业信息研究所 | Crop leaf physiological moisture monitoring system |
Non-Patent Citations (3)
| Title |
|---|
| 可编程光/频转换器TSL230;黄正佳;《国外电子元器件》;19990122(第1期);第41-44页 * |
| 基于光频转换器的叶片水分检测仪器;侯瑞 王洪威;《中国高新技术企业》;20110101(第172期);第30-31页 * |
| 基于近红外光谱的活体植物叶片水分检测仪器;侯瑞 等;《农业工程学报》;20091031;第25卷;第92-96页 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638306A (en) * | 2020-06-11 | 2020-09-08 | 中国农业科学院农业信息研究所 | Crop dynamic monitoring method, device, equipment and system |
| WO2021248773A1 (en) * | 2020-06-11 | 2021-12-16 | 中国农业科学院农业信息研究所 | Crop dynamic monitoring method, apparatus, device and system |
| CN111638306B (en) * | 2020-06-11 | 2022-05-17 | 中国农业科学院农业信息研究所 | Crop dynamic monitoring method, device, equipment and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100462712C (en) | Non-destructive detecting method and detecting instrument for portable plant nitrogen and water content | |
| CN204228602U (en) | Crop leaf physiological moisture monitoring system | |
| CN103048277B (en) | The system and method for near infrared spectrum Non-Destructive Testing fruit internal quality | |
| CN208283806U (en) | A kind of detection robot for greenhouse | |
| CN103149162A (en) | Portable crop growth information monitor based on active light source | |
| CN203011825U (en) | Portable crop growth information monitor based on active light source | |
| CN204730887U (en) | A kind of wireless infant incubator self-checking device | |
| CN101949825B (en) | Leaf water near infrared non-destructive testing device and method in light open environment | |
| CN106404680A (en) | Device and method for field quick on-site detection of citrus huanglongbing | |
| CN205175881U (en) | Viscidity particulate matter consistency transmitter | |
| CN201788153U (en) | Pesticide residue detector integrated with micro electronic balance | |
| CN100561190C (en) | Dark current detection device and absorbency detection method | |
| CN108226049A (en) | System for detecting blood sugar and detection method | |
| CN103558177B (en) | Raw meat organizes moisture near-infrared detection apparatus and detection method | |
| CN104374732A (en) | System for monitoring physiological water in crop leaves | |
| CN101858759A (en) | Multi-channel agricultural measuring device based on MCU | |
| CN202204751U (en) | Detector for fast measuring liquid specific gravity, turbidity and color | |
| CN102830071B (en) | Detection apparatus and method for total phosphorus content in soil | |
| CN203241371U (en) | Portable multi-index impedance biosensor device | |
| CN205404410U (en) | Double -light -path method littoral zone water chlorophyll normal position monitoring devices | |
| CN201680860U (en) | Multi-channel agricultural measuring device based on MCU | |
| CN104833657A (en) | Laser wireless sand meter having side-direction compensation | |
| CN205333513U (en) | Organic spectral detection device of soil | |
| CN203465197U (en) | Device for detecting transparency of tissue engineering cornea | |
| RU2477473C2 (en) | Method for microphotometric investigations of wood annual rings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |
|
| RJ01 | Rejection of invention patent application after publication |