CN107389561A - Plant leaf blade nutrient monitoring device and monitoring method based on RGB color sensor - Google Patents
Plant leaf blade nutrient monitoring device and monitoring method based on RGB color sensor Download PDFInfo
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- CN107389561A CN107389561A CN201710569751.9A CN201710569751A CN107389561A CN 107389561 A CN107389561 A CN 107389561A CN 201710569751 A CN201710569751 A CN 201710569751A CN 107389561 A CN107389561 A CN 107389561A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract
The invention discloses a kind of plant leaf blade nutrient monitoring device based on RGB color sensor, including casing, microprocessor is provided with casing, tank surface is provided with power interface, communication interface, USB interface and display screen, RGB color sensor is lifted with below casing, LED light source is installed on the photosensitive unit periphery of RGB color sensor, the power interface, communication interface, USB interface, display screen, RGB color sensor and LED light source are connected with microcontroller circuit；In casing ranging rod is vertically arranged with close to the position of RGB color sensor.The present invention can realize long-term leaf nutrition monitoring using untouchable Blade measuring and automatic white balance function.USB and serial ports scheme can carry out remote transmission regulation and control to this equipment.A variety of fruit tree leaf nutrient diagnosis models built in monitoring device, can be updated upgrading by network.
Description
Technical field
The present invention relates to Control on Communication field, more particularly to a kind of plant leaf blade nitrogen battalion based on RGB color sensor
Support monitoring device and monitoring method.
Background technology
In the prior art, in the industrial crops production process such as fruit tree, vegetables, the nutrition letter of only real-time control crop
Breath, especially the nitrogen nutrition information of blade and the nitrogen information of soil, best nutritional judgement could be provided to raise crop, and
Carry out specific aim fertilising and obtain optimum economic benefit.The detection means of plant nitrogen nutrition is still divided at present limited.Conventional hand
Section mainly includes chemical analysis, computer vision analysis method and chlorophyll meter analytic approach.Chemical analysis passes through chemical means
Nitrogen nutrition in the blade of plant is detected, the nitrate nitrogen and ammonium nitrogen in soil are obtained using soil test detection method.Although
Conventional detection method has the high advantage of accuracy, but only meets laboratory use.Currently with computer vision analysis
Modeling needs large database and host computer resource, the means such as its schematic capture needs are taken photo by plane, it is also difficult to popularize.Chlorophyll meter
Method captures blade transmitted light and reflected light information by using sensor, provides chlorophyll information and relative nitrogen information immediately,
With portable, the quick advantage for reading data.Popular at present is the SPAD series portability leaves of Minolta company production
Green plain instrument, and the nitrogen diagnosis instrument that operation principle is similar.It is characterized in being detected using two wave bands of 650nm and 940nm,
Although this kind of non-damage chlorophyll/nitrogen instrument has the advantages of Portable high-efficiency, because its detection spectral range is limited,
Precision is slightly poor, and suitable sampling observation is also not suitable for long-term monitoring.With the development of color detection technology, particularly R/G/B sensors
High speed development, there are some chlorophyll detecting instruments for being applied to scientific research field to be also thus born, popular at present is to be based on
The instrument of the TS230 CMOS color sensors of TAO companies, there is the high advantage of precision compared with SPAD detectors, but its machinery is tied
It is still similar to SPAD quasi-instruments that structure includes lucifuge sensing chamber, blade folder etc..Instrument detects there is still a need for artificial logical manually every time
Crossing mechanical device could realize, can not also be developed this kind equipment as field long-term monitoring equipment.
The content of the invention
For above-mentioned shortcoming and defect of the prior art, the present invention utilizes TS230 high accuracy and noiseproof feature, opened
Long-term monitoring can be carried out in field by sending out one kind, the nitrogen monitoring instrument for possessing remote communicating function.
The purpose of the present invention is achieved through the following technical solutions：
A kind of plant leaf blade nutrient monitoring device based on RGB color sensor, including casing, micro- place is provided with casing
Device is managed, tank surface is provided with power interface, communication interface, USB interface and display screen, RGB face is lifted with below casing
Colour sensor, LED light source, the power interface, communication interface, USB are installed on the photosensitive unit periphery of RGB color sensor
Interface, display screen, RGB color sensor and LED light source are connected with microcontroller circuit；Sensed in casing close to RGB color
The position of device is vertically arranged with ranging rod.
Preferably, the power interface, communication interface and USB interface are arranged at the side of casing；The display screen is set
In the front end face of casing, control panel is additionally provided with the front end face of casing；Hoisting ring is fixedly installed above casing.
Preferably, the microprocessor is STC89C52RC single-chip microcomputers, and the RGB color sensor is TCS320 RGB
Cmos sensor.
Preferably, the TCS320 RGB cmos sensors are encapsulated using the SOIC surface-adhered types of 8 pins, single
64 photodiodes are integrated on chip.
Preferably, 64 photodiodes are divided into 4 groups：Wherein 16 photodiodes carry red filter；16
Photodiode carries green filter；16 photodiodes carry blue electric-wave filter；Remaining 16 without any filtering
Device, whole optical informations can be passed through.
Preferably, the single-chip microcomputer is embedded with model formation：
Y=k+0.63log10 (R)+2.59log10 (G) -4.31log10 (B) ... ... ... (1)
In formula (1), R, G, B are the color channel numerical value that sensor detecting obtains, and k is plant specificity constant parameter
(such as apple is 40.4, and large cherry is 32.7 etc.), the y of final output is the horizontal and corresponding soil nitrate-N water of plant nitrogen
Flat ratio.
A kind of plant leaf blade nitrogen nutrition monitoring method based on RGB color sensor, comprises the following steps：
S1, open LED light source transmitting white light, RGB color sensor replenish blade color signal in R/G/B it is relatively strong
Degree, is transmitted to single-chip microcomputer after being converted into electric signal；
S2, single-chip microcomputer calculate plant nitrogen according to being brought into respectively according to R/G/B numerical value in its embedded model formation
The ratio of the horizontal and corresponding soil nitrate nitrogen level of element, confirms whether plant leaf blade nitrogen nutrition is in normal range (NR).
Preferably, the instrument preparatory stage is also included before step S1：
ZB01,12v dc sources are inserted into power interface, the communications cable is respectively connected to communication interface and telecommunication is whole
End；
ZB02, the photosensitive unit of the RGB color sensor of monitoring device is lifted to tested blade by hoisting ring and put down
OK；
ZB03, started shooting by the on ＆ off switch on control panel and monitoring parameters are set；
ZB04, using the relative position between ranging rod telescopic adjustment sensor and blade, according to ranging rod measure away from
From the irradiation frequency for setting LED light source.
Preferably, the detection parameters include collection date, collection kind and frequency acquisition.
Compared with prior art, the embodiment of the present invention at least has advantages below：
TS230 CMOS chips of the present invention there is output signal directly with microprocessor can be connected realize each color 10
Conversion high accuracy more than position, and need not rely on traditional A/D change-over circuits.As long as TS230 under the conditions of having LED light fillings,
Program is set to realize the high-precision color detection in non-close environment with AWB.Surveyed using untouchable blade
Amount and automatic white balance function can realize long-term leaf nutrition monitoring.USB and serial ports scheme can carry out long-range to this equipment
Transmission regulation and control.A variety of fruit tree leaf nutrient diagnosis models built in monitoring device, can be updated upgrading by network.
Brief description of the drawings
Fig. 1 is the structural representation of the plant leaf blade nutrient monitoring device of the invention based on RGB color sensor；
Fig. 2 is the schematic flow sheet of the plant leaf blade nutrient monitoring method of the invention based on RGB color sensor.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The invention will be further described with reference to the accompanying drawings and examples.
A kind of plant leaf blade nutrient monitoring device based on RGB color sensor, including casing 6, it is provided with casing 6 micro-
Processor, the surface of casing 6 is provided with power interface 5, communication interface 3, USB interface 4 and display screen 7, lifted below casing 6
There is RGB color sensor 1, LED light source 9 is installed on the photosensitive unit periphery of RGB color sensor 1, the power interface 5,
Communication interface 3, USB interface 4, display screen 7, RGB color sensor 1 and LED light source 9 are connected with microcontroller circuit；In case
Body 6 is vertically arranged with ranging rod 10 close to the position of RGB color sensor 1.USB interface 4 and communication interface 3 can be utilized to connect
Computer is debugged or upgraded.
The power interface 5, communication interface 3 and USB interface 4 are arranged at the side of casing 6；The display screen 7 is arranged on
The front end face of casing 6, control panel 8 is additionally provided with the front end face of casing 6；Lifting is fixedly installed in the top of casing 6
Ring 2.
The microprocessor is STC88C52RC single-chip microcomputers, and the RGB color sensor 1 senses for TCS320RGB CMOS
Device.
The TCS320 RGB cmos sensors are encapsulated using the SOIC surface-adhered types of 8 pins, are collected on one chip
Into 64 photodiodes.
64 photodiodes are divided into 4 groups：Wherein 16 photodiodes carry red filter；16 poles of photoelectricity two
Pipe carries green filter；16 photodiodes carry blue electric-wave filter；Remaining 16 without any wave filter, Ke Yitou
Cross whole optical informations.
4 groups of photodiode cross arrangements in chip；It is connected in parallel, is evenly distributed on positioned at the photodiode with group
In diode array.
The single-chip microcomputer is embedded with model formation：
Y=k+0.63log10 (R)+2.59log10 (G) -4.31log10 (B) ... ... ... (1)
In formula (1), R, G, B are the color channel numerical value that sensor detecting obtains, and k is plant specificity constant parameter
(such as apple is 40.4, and large cherry is 32.7 etc.), the y of final output is the horizontal and corresponding soil nitrate-N water of plant nitrogen
Flat ratio.
A kind of plant leaf blade nitrogen nutrition monitoring method based on RGB color sensor 1, comprises the following steps：
S1, open LED light source 9 launch white light, RGB color sensor 1 replenish blade color signal in R/G/B it is relative
Intensity, transmitted after being converted into electric signal to single-chip microcomputer；
S2, single-chip microcomputer calculate plant nitrogen according to being brought into respectively according to R/G/B numerical value in its embedded model formation
The ratio of the horizontal and corresponding soil nitrate nitrogen level of element, confirms whether plant leaf blade nitrogen nutrition is in normal range (NR).
Also include the instrument preparatory stage before step S1：
ZB01,12v dc sources are inserted into power interface 5, the communications cable is respectively connected to communication interface 3 and telecommunication
Terminal；
ZB02, by hoisting ring 2 by the photosensitive unit of the RGB color sensor 1 of monitoring device lift to tested blade
It is parallel；
ZB03, started shooting by the on ＆ off switch on control panel 8 and monitoring parameters are set；
ZB04, using the relative position between the telescopic adjustment sensor of ranging rod 10 and blade, measured according to ranging rod 10
Distance set LED light source 9 irradiation frequency.
The detection parameters include collection date, collection kind and frequency acquisition.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (9)
1. a kind of plant leaf blade nutrient monitoring device based on RGB color sensor, it is characterised in that including casing, in casing
Microprocessor is provided with, tank surface is provided with power interface, communication interface, USB interface and display screen, hung below casing
Equipped with RGB color sensor, LED light source is installed on the photosensitive unit periphery of RGB color sensor, the power interface, led to
Letter interface, USB interface, display screen, RGB color sensor and LED light source are connected with microcontroller circuit；It is close in casing
The position of RGB color sensor is vertically arranged with ranging rod.
2. monitoring device according to claim 1, it is characterised in that the power interface, communication interface and USB interface are set
It is placed in the side of casing；The display screen is arranged on the front end face of casing, and control panel is additionally provided with the front end face of casing；
Hoisting ring is fixedly installed above casing.
3. monitoring device according to claim 1, it is characterised in that the microprocessor is STC89C52RC single-chip microcomputers,
The RGB color sensor is TCS320 RGB cmos sensors.
4. monitoring device according to claim 3, it is characterised in that the TCS320 RGB cmos sensors draw using 8
The SOIC surface-adhered types encapsulation of pin, integrates 64 photodiodes on one chip.
5. monitoring device according to claim 4, it is characterised in that 64 photodiodes are divided into 4 groups：Wherein 16
Photodiode carries red filter；16 photodiodes carry green filter；16 photodiodes are with blueness
Wave filter；Remaining 16, without any wave filter, can pass through whole optical informations.
6. according to the monitoring device any one of claim 2-6, it is characterised in that the single-chip microcomputer is embedded with model public affairs
Formula：
Y=k+0.63log10 (R)+2.59log10 (G) -4.31log10 (B) ... ... ... (1)
In formula (1), R, G, B be sensor detecting obtain color channel numerical value, k be plant specificity constant parameter (such as
Apple is 40.4, and large cherry is 32.7 etc.), the y of final output is the horizontal and corresponding soil nitrate nitrogen level of plant nitrogen
Ratio.
7. a kind of plant leaf blade nutrient monitoring method based on RGB color sensor, it is characterised in that comprise the following steps：
S1, open LED light source transmitting white light, RGB color sensor replenish blade color signal in R/G/B relative intensity,
Transmitted after being converted into electric signal to single-chip microcomputer；
S2, single-chip microcomputer calculate plant nitrogen water according to being brought into respectively according to R/G/B numerical value in its embedded model formation
The ratio of gentle corresponding soil nitrate nitrogen level, confirms whether plant leaf blade nitrogen nutrition is in normal range (NR).
8. monitoring method according to claim 8, it is characterised in that also include the instrument preparatory stage before step S1：
ZB01,12v dc sources are inserted into power interface, the communications cable is respectively connected to communication interface and telecommunication terminal；
ZB02, the photosensitive unit of the RGB color sensor of monitoring device is lifted to parallel with tested blade by hoisting ring；
ZB03, started shooting by the on ＆ off switch on control panel and monitoring parameters are set；
ZB04, using the relative position between ranging rod telescopic adjustment sensor and blade, the distance measured according to ranging rod is set
Put the irradiation frequency of LED light source.
9. monitoring method according to claim 9, it is characterised in that the detection parameters include collection date, collection product
Kind and frequency acquisition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710569751.9A CN107389561A (en) | 2017-07-13 | 2017-07-13 | Plant leaf blade nutrient monitoring device and monitoring method based on RGB color sensor |
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| CN201710569751.9A CN107389561A (en) | 2017-07-13 | 2017-07-13 | Plant leaf blade nutrient monitoring device and monitoring method based on RGB color sensor |
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Cited By (1)
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| CN109738438A (en) * | 2018-12-29 | 2019-05-10 | 扬州大学 | A kind of Wheat Leaves Senescence degree method for fast measuring |
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