CN104655574A - Device for measuring content of chlorophyll of crop disease leaves - Google Patents
Device for measuring content of chlorophyll of crop disease leaves Download PDFInfo
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- CN104655574A CN104655574A CN201510051420.7A CN201510051420A CN104655574A CN 104655574 A CN104655574 A CN 104655574A CN 201510051420 A CN201510051420 A CN 201510051420A CN 104655574 A CN104655574 A CN 104655574A
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Abstract
The invention relates to the technical field of agricultural plant protection information and in particular relates to a device for measuring the content of chlorophyll of crop disease leaves. The device comprises a measuring probe, a spectral signal processing device and a height adjuster, wherein the measuring probe consists of a laser, a spectral receiver and a leaf loader; a clamping piece used for clamping is arranged between the laser and the leaf loader; the leaf loader is used for placing and fixing whole leaves of a to-be-measured crop; emergent rays of the laser irradiate the whole leaf surfaces of the to-be-measured crop; the spectral receiver detects spectral signals of the whole leaves of the to-be-measured crop and transmits the spectral signals to the spectral signal processing device; and the height adjuster is arranged on the spectral signal processing device, the measuring probe is loaded, and the measuring probe is subjected to position movement along with elongation or retraction of the height adjuster. According to the device disclosed by the invention, the relative content of the chlorophyll of the whole crop disease leaves can be conveniently and accurately measured, and the effects of establishing rapid disease control measures and guiding the agricultural production are achieved.
Description
Technical field
The present invention relates to agricultural plant protection areas of information technology, particularly a kind of crop pest chlorophyll content in leaf blades determinator.
Background technology
In crop growth process, because nitrogenous fertilizer disappearance can cause blade gradually by green flavescence, this is the process of a gradual change.Current SPAD-502 chlorophyll meter and plant nitrogen equilibrium index measuring instrument (DUALEX SCIENTIFIC) are the plant leaf blade chlorophyll relative content analyzers that our times usable range is the widest.Wherein, SPAD-502 chlorophyll meter determines the current chlorophyllous relative populations of blade by measuring blade two kinds of wavelength (650nm and 940nm) optical concentration differences; DUALEX measures the chlorophyll exponential sum nitrogen balance index of blade by 5 LED light sources (1 ultraviolet light, 1 green glow, 1 ruddiness, 2 near infrareds), can measure this Changing Pattern more exactly.Two kinds of instruments are mainly used in diagnosis crop and whether lack nitrogenous fertilizer, and then carry out fertilising guidance.
The blade of introduced disease, except blade surface exists a large amount of scabs, partial blade turns yellow withered, causes using existing portable testing instrument device measurement result to change greatly.Such as, situation one: when leaf spot lesion and withered part account for the major part of disease blade, without chlorophyll test value; And remainder is still greener, when this leaf (green leaf part) measures, chlorophyll test value is apparently higher than actual value.Situation two: part scab appears in blade, scab and green portion alternately exist, and this leaf (entirety) chlorophyll measuring value is lower than actual value.Use existing chlorophyll relative content analyzer, the normal and truth of the numerical value given is not inconsistent.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems:
Though disease and nutrient lack all to belong to coerce category, all use the chlorophyll measuring in close relations with photosynthesis of plant as the concern factor, but because of both the performance characteristic that causes different, and the instrument of exploitation at present all designs for nitrogen disappearance, the chlorophyll measuring that disease causes is not paid close attention to, cause in actual production is instructed, estimating precision reduces.
Existing portable instrument in the wild data determination time, collection be point data independent one by one, when nitrogenous fertilizer lacks, the average after a blade repetitive measurement can reflect result preferably.But there is diversity in the distribution of disease leaf spot lesion, this is caused by disease difference.Such as, stripe rust of wheat is the scab of strip, and leaf rust is the scab of point-like; Wheat powdery mildew by early stage fleck to later stage blotch in flakes.Meanwhile, there is disease attachment in scab, and when contact measures, some part is by people for touching off, and some part is still attached to leaf surface, and these all can have impact to measurement result; And attachment is concerning contact instrument, is the pollutant affecting optical sensor precision.Again, human factor (different operating personnel can select different measuring points) is one of key factor affecting measuring accuracy, especially when disease measuring blade, the different choice of scab position and green portion has distinct test result, can not show a candle to whole leaf average and measures accurately.
To sum up, for the singularity of crop pest blade, design special disease chlorophyll content in leaf blades determinator significant.
Summary of the invention
(1) technical matters that will solve
The invention provides a kind of crop pest chlorophyll content in leaf blades determinator, for the singularity of crop pest blade, conveniently determine crop overall disease leaf chlorophyll relative content result accurately, serve disease control and guiding agricultural production.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of crop pest chlorophyll content in leaf blades determinator, comprising: measuring sonde, spectral signal treating apparatus and height adjuster;
Measuring sonde, comprise laser instrument, spectral receiver and blade and carry device, the shackle member for clamping is provided with between described laser instrument and blade lift-launch device, described blade carries device and is used for placing and the fixing whole blade of crop to be measured, the emergent ray of described laser instrument irradiates the whole blade surface of described crop to be measured, described spectral receiver detects the spectral signal of the whole blade of described crop to be measured, and described spectral signal is sent to spectral signal treating apparatus;
Height adjuster, is arranged on spectral signal treating apparatus, for carrying measuring sonde; Described measuring sonde carries out position and moves along with elongating or shortening of described height adjuster.
Preferably, described blade carries the fixed clamping piece that device comprises board mounting and is fixed on board mounting one end and the active clamping piece that can slide in described lift-launch version, described board mounting is for placing the whole blade of crop to be measured, described fixed clamping piece is used for the phyllopodium of fixed blade, and described active clamping piece is used for being fixed according to the blade tip of size to blade of blade.
Preferably, described active clamping piece is provided with control handle, moves with the line position that moves forward into of described control handle for driving described active clamping piece.
Preferably, described blade carries device and also comprises and be arranged on described blade and carry imageing sensor on device, the spectral signal of described to be measured crop whole blade of described imageing sensor for obtaining spectral receiver and detecting.
Preferably, be also provided with GPS module in described spectral signal treating apparatus, described GPS module is used for locating in real time current testing location.
Preferably, described device also comprises power module, and described power module is used for for other module for power supply in device.
(3) beneficial effect
A kind of crop pest chlorophyll content in leaf blades determinator provided by the invention, for the Disease Characters of disease blade, adopts planar survey to replace point to measure, and reduces the problem that the measuring accuracy that causes because of a measurement is low; Reduce the error at measurment caused because operating personnel's measuring point chooses difference, there is portability, untouchable, nondestructive operational advantage, provide disease leaf chlorophyll relative content result and other and determination data relevant information, improve disease prevention and control efficiency, maximize and serve disease control and guiding agricultural production.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of crop pest chlorophyll content in leaf blades determinator that the embodiment of the present invention proposes;
Fig. 2 is the structural representation of the measuring sonde proposed in the embodiment of the present invention; And
Fig. 3 is the structural representation that the blade proposed in the embodiment of the present invention carries device.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
A kind of crop pest chlorophyll content in leaf blades determinator provided by the invention, there is portability, advantage that untouchable, non-destructive, maximization reduce man's activity measurement result, provide disease leaf chlorophyll relative content result, serve disease control and guiding agricultural production.
Fig. 1 is the structural representation of a kind of crop pest chlorophyll content in leaf blades determinator that the embodiment of the present invention proposes; With reference to Fig. 1, the crop pest chlorophyll content in leaf blades determinator that the embodiment of the present invention proposes, comprising: measuring sonde 10, height adjuster 20 and spectral signal treating apparatus 30;
Measuring sonde 10, as shown in Figure 2, comprise laser instrument 101, spectral receiver 102 and blade further and carry device 103, the shackle member 104 for clamping is provided with between described laser instrument and blade lift-launch device, described blade carries device 103 for placing and the fixing whole blade of crop to be measured, the emergent ray of described laser instrument 101 irradiates the whole blade surface of described crop to be measured, described spectral receiver 102 detects the spectral signal of the whole blade of described crop to be measured, and described spectral signal is sent to spectral signal treating apparatus 30;
Height adjuster 20, is arranged on spectral signal treating apparatus 30, for carrying measuring sonde 10; Described measuring sonde 10 carries out position and moves along with elongating or shortening of described height adjuster 20;
Spectral signal treating apparatus in the embodiment of the present invention, adopt existing spectral manipulation device, receive the spectral signal that described measuring sonde 10 gathers, signal transacting is carried out to described spectral signal, obtains the chlorophyll content of the whole blade of described crop to be measured and show measurement result.
Wherein, laser instrument 101 is made up of LED excitation source, and LED is 650nm and 940nm two wave bands.LED laser instrument launches two kinds of light, one is ruddiness (the long 650nm of spike), one is infrared ray (940nm), two kinds of light penetrate blade, get on spectral receiver 102, light signal converts simulating signal to and is sent to spectral signal treating apparatus 30, simulating signal is carried out amplifier amplification by spectral signal treating apparatus 30, digital signal is converted to by analog/digital converter, digital signal is utilized by microprocessor, calculates crop pest chlorophyll content in leaf blades and is presented on spectral signal treating apparatus.
Further, described blade carries device 103, as shown in Figure 3, the fixed clamping piece 1032 comprising board mounting 1031 further and be fixed on board mounting one end and the active clamping piece 1033 that can slide in described lift-launch version, described board mounting is strip, for placing the whole blade of crop to be measured, described fixed clamping piece is used for the phyllopodium of fixed blade, and described active clamping piece is used for being fixed according to the blade tip of size to blade of blade.
Further, described active clamping piece 1033 is also provided with control handle, described control handle is fixed on described active clamping piece 1033, for controlling the position of described active clamping piece 1033.
In the embodiment of the present invention, the whole blade of crop to be measured is placed on board mounting 1031, and active clamping piece 1033 clamps the blade tip of blade; Fixed clamping piece 1032 clamps the phyllopodium of blade.Wherein 1032 is fixing, and 1033 can move left and right along with the length of blade, and by the control handle be fixed on described active clamping piece 1033, the position controlling 1033 is moved.
Laser instrument 101 and spectral receiver 102 contact portion be from fixed clamping piece 1032 to active clamping piece 1033 part, remaining part does not calculate within the scope of spectrographic detection.
When carrying out crop pest chlorophyll content in leaf blades mensuration, the whole blade of crop to be measured is entered by fixed clamping piece 1032 and fixes tight; Active clamping piece 1033 moves the tip segment of fixed blade by control handle; After blade fixes, laser instrument 101 and spectral receiver 102 are covered by shackle member 104, after starting measurement function, and record measurement result.Before each mensuration, under on-bladed state, first carry out an instrumental correction, thus avoid because leaf blade size is different, active clamping piece 1033 moves around the measuring error produced.
Adopt blade to carry device 103 in the embodiment of the present invention and place the whole blade of crop to be measured, and then realize the mensuration to the average chlorophyll relative content of the whole leaf of crop to be measured.
Further, described blade carries device 103 and also comprises and be arranged on described blade and carry imageing sensor on device, the spectral signal of described to be measured crop whole blade of described imageing sensor for obtaining spectral receiver and detecting.
Further, be also provided with GPS module in described spectral signal treating apparatus 30, described GPS module is used for locating in real time current testing location.
More progressively, be also provided with display module in described spectral signal treating apparatus 30, for showing the data of mensuration, described display module is preferably liquid crystal display, does not do concrete restriction to this present invention.Wherein, display module and GPS module are for the real-time positioning information of the data and current testing location that show mensuration.
The embodiment of the present invention, adds GPS module and LCD MODULE in spectral signal treating apparatus 30, finally exports data and comprises: the information such as relative chlorophyll test value, longitude and latitude, degree of disease division result, testing location of whole leaf.
Further, described device also comprises power module, and described power module is used for for other module for power supply in device.Power module in the embodiment of the present invention can adopt lithium battery, and described lithium battery is placed the back side of spectral signal treating apparatus 30, to this, the present invention is not specifically limited.
A kind of crop pest chlorophyll content in leaf blades determinator provided by the invention, for the Disease Characters of disease blade, adopts planar survey to replace point to measure, and reduces the problem that the measuring accuracy that causes because of a measurement is low; Reduce the error at measurment caused because operating personnel's measuring point chooses difference, there is portability, untouchable, nondestructive operational advantage, provide disease leaf chlorophyll relative content result and other and determination data relevant information, improve disease prevention and control efficiency, maximize and serve disease control and guiding agricultural production.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (6)
1. a crop pest chlorophyll content in leaf blades determinator, is characterized in that, comprising: measuring sonde, spectral signal treating apparatus and height adjuster;
Measuring sonde, comprise laser instrument, spectral receiver and blade and carry device, the shackle member for clamping is provided with between described laser instrument and blade lift-launch device, described blade carries device and is used for placing and the fixing whole blade of crop to be measured, the emergent ray of described laser instrument irradiates the whole blade surface of described crop to be measured, described spectral receiver detects the spectral signal of the whole blade of described crop to be measured, and described spectral signal is sent to spectral signal treating apparatus;
Height adjuster, is arranged on spectral signal treating apparatus, for carrying measuring sonde; Described measuring sonde carries out position and moves along with elongating or shortening of described height adjuster.
2. crop pest chlorophyll content in leaf blades determinator as claimed in claim 1, it is characterized in that, described blade carries the fixed clamping piece that device comprises board mounting and is fixed on board mounting one end and the active clamping piece that can slide in described lift-launch version, described board mounting is for placing the whole blade of crop to be measured, described fixed clamping piece is used for the phyllopodium of fixed blade, and described active clamping piece is used for being fixed according to the blade tip of size to blade of blade.
3. crop pest chlorophyll content in leaf blades determinator as claimed in claim 2, it is characterized in that, described active clamping piece is provided with control handle, moves with the line position that moves forward into of described control handle for driving described active clamping piece.
4. the crop pest chlorophyll content in leaf blades determinator as described in any one of claim 1-3, it is characterized in that, described blade carries device and also comprises and be arranged on described blade and carry imageing sensor on device, the spectral signal of described to be measured crop whole blade of described imageing sensor for obtaining spectral receiver and detecting.
5. the crop pest chlorophyll content in leaf blades determinator as described in any one of claim 1-3, is characterized in that, is also provided with GPS module in described spectral signal treating apparatus, and described GPS module is used for locating in real time current testing location.
6. the crop pest chlorophyll content in leaf blades determinator as described in any one of claim 1-3, it is characterized in that, described device also comprises power module, and described power module is used for for other module for power supply in device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051420.7A CN104655574A (en) | 2015-01-30 | 2015-01-30 | Device for measuring content of chlorophyll of crop disease leaves |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510051420.7A CN104655574A (en) | 2015-01-30 | 2015-01-30 | Device for measuring content of chlorophyll of crop disease leaves |
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| CN104655574A true CN104655574A (en) | 2015-05-27 |
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| CN201510051420.7A Pending CN104655574A (en) | 2015-01-30 | 2015-01-30 | Device for measuring content of chlorophyll of crop disease leaves |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287214A (en) * | 2017-12-07 | 2018-07-17 | 广西壮族自治区林业科学研究院 | A kind of clipping Chlorophyll meter measures the auxiliary device of coniferous species chlorophyll content |
| CN110596098A (en) * | 2019-08-26 | 2019-12-20 | 江苏大学 | Rapid detection system and detection method for ratio distribution of chlorophyll and lutein in cucumber leaves |
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| JPH08271419A (en) * | 1996-01-23 | 1996-10-18 | Iseki & Co Ltd | Quality decision system for rice and taste analyzer |
| CN1865926A (en) * | 2006-04-30 | 2006-11-22 | 武汉大学 | Portable detector for pigment in plant leaf |
| CN200965518Y (en) * | 2006-10-12 | 2007-10-24 | 飞秒光电科技(西安)有限公司 | Chlorophyll meter |
| CN101556240A (en) * | 2009-05-22 | 2009-10-14 | 天津大学 | Chlorophyll measuring apparatus based on RGB (red, green and blue) digital signal |
| CN204389379U (en) * | 2015-01-30 | 2015-06-10 | 安徽大学 | A kind of crop pest chlorophyll content in leaf blades determinator |
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2015
- 2015-01-30 CN CN201510051420.7A patent/CN104655574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08271419A (en) * | 1996-01-23 | 1996-10-18 | Iseki & Co Ltd | Quality decision system for rice and taste analyzer |
| CN1865926A (en) * | 2006-04-30 | 2006-11-22 | 武汉大学 | Portable detector for pigment in plant leaf |
| CN200965518Y (en) * | 2006-10-12 | 2007-10-24 | 飞秒光电科技(西安)有限公司 | Chlorophyll meter |
| CN101556240A (en) * | 2009-05-22 | 2009-10-14 | 天津大学 | Chlorophyll measuring apparatus based on RGB (red, green and blue) digital signal |
| CN204389379U (en) * | 2015-01-30 | 2015-06-10 | 安徽大学 | A kind of crop pest chlorophyll content in leaf blades determinator |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287214A (en) * | 2017-12-07 | 2018-07-17 | 广西壮族自治区林业科学研究院 | A kind of clipping Chlorophyll meter measures the auxiliary device of coniferous species chlorophyll content |
| CN110596098A (en) * | 2019-08-26 | 2019-12-20 | 江苏大学 | Rapid detection system and detection method for ratio distribution of chlorophyll and lutein in cucumber leaves |
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Application publication date: 20150527 |