CN208125118U - A kind of plant blade area measuring apparatus based on solar photocell - Google Patents
A kind of plant blade area measuring apparatus based on solar photocell Download PDFInfo
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- CN208125118U CN208125118U CN201820185288.8U CN201820185288U CN208125118U CN 208125118 U CN208125118 U CN 208125118U CN 201820185288 U CN201820185288 U CN 201820185288U CN 208125118 U CN208125118 U CN 208125118U
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- Prior art keywords
- blade area
- detection
- measuring apparatus
- solar photocell
- power supply
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Abstract
A kind of plant blade area measuring apparatus based on solar photocell, specific technical solution are：One microcontroller is control core, and the A/D converter for reading blade area detection data is connected by I/O pin, and the liquid crystal display of display detection information is connected by I/O pin, passes through I/O pin connecting detection control button.One piece of power supply solar photocell is the power supply of entire plant blade area measuring apparatus by voltage regulator circuit, one piece of detection solar photocell and a transparent cover plate constitute blade area sensing unit, the voltage of sensing unit output connects a bleeder circuit, and the output voltage of bleeder circuit is input to microcontroller by A/D converter and carries out areal calculation.The beneficial effects of the utility model：Without external power supply or battery, the measurement of plant blade area can be carried out under the irradiation of outdoor natural light on daytime, structure and principle are simple, carry and use conveniently, are suitble to the on-line measurement in field.
Description
Technical field
The utility model relates to a kind of plant blade area measuring apparatus device, and in particular to a kind of based on solar photocell
Plant blade area measuring apparatus device.
Background technique
Important indicator of the plant blade area as research vegetation growth state, hereditary capacity, cultivation effect etc., extensively
It is general to be applied in agri-scientific research and production.The measurement of plant blade area can be using based on artificial gridding method, punching weighing
Method, cut paper weighing method may be based on dedicated plant blade area measuring apparatus.The former is time-consuming and laborious, cumbersome and error compared with
Greatly；The latter's measurement accuracy is high, but expensive, not Portable belt.Therefore occur numerous about plant blade area measuring apparatus
The patent of device or device：A kind of plant leaf area measuring instrument of CN201611064809.6, a kind of living body of CN200910265908.4
Blade area tester, a kind of photoelectric smoke leaf area measurement device of CN201510408345.5, CN20171034164.5 are a kind of
Leaf area measurement method, a kind of leaf area measurement method of CN201611031043.1 and CN201510522019.7 one kind are based on figure
As the method for measuring leaf area etc. of processing.Above-mentioned patent respectively has feature, but common operational version is all to need external electricity
Source is instrument power supply with battery.
Summary of the invention
The utility model provides a kind of plant blade area measuring apparatus based on solar photocell, utilizes solar energy
Sensing unit of the battery as blade area, while being the power supply of entire instrument using solar photocell.
Technical solution used by the utility model is：Control of one microcontroller as plant blade area measuring apparatus
Core, microcontroller connect the detection data that 1 A/D converter reads blade area by I/O pin, and microcontroller passes through I/
O pin connects a liquid crystal display and is used for vision-control information and detection information, and microcontroller connects 1 by I/O pin
Key is for detecting control.The solar photocell of one piece of power supply is the survey of entire plant blade area by a voltage regulator circuit
Measure instrument power supply, the on-off of a power switch control power supply.The solar photocell and a transparent cover plate structure of one piece of detection
At the sensing unit of blade area, the voltage of sensing unit output connects an adjustable partial pressure potential device, partial pressure potential device
Output voltage by A/D converter be converted to digital quantity be input to microcontroller carry out areal calculation.
The beneficial effects of the utility model are：Without external power supply or battery, under the irradiation of outdoor natural light on daytime just
The measurement of plant blade area can be carried out, structure and principle are simple, carry and use conveniently, are suitble to the on-line measurement in field.
Detailed description of the invention
Fig. 1 is the circuit structure block diagram of plant blade area measuring apparatus.
Fig. 2 is the circuit diagram of plant blade area measuring apparatus.
Fig. 3 is the surface structure schematic diagram of plant blade area measuring apparatus.
In figure, 1. power supply solar photocells, 2. voltage regulator circuits, 3. A/D converters, 4. liquid crystal displays, 5. is micro-
Controller, 6. bleeder circuits, 7. detection solar photocells, 8. detection control buttons, 9. power switches, 10. partial pressure potentials
Device adjusting knob, 11. transparent cover plates.
Specific embodiment
Fig. 1 is the circuit structure block diagram of plant blade area measuring apparatus.Power supply is shone with solar photocell 1 in outdoor light
The voltage of lower generation is penetrated by 2 pressure stabilizing of voltage regulator circuit, is the power supply of plant blade area measuring apparatus.Solar photocell is used in detection
7 voltages generated under the irradiation of outdoor light are divided by bleeder circuit 6, and input a/d converter 3 is converted to digital quantity.Micro-control
Device 5 processed reads the digital quantity of A/D converter 3, calculates blade area and shows in liquid crystal display 4.
Fig. 2 is the circuit diagram of plant blade area measuring apparatus.Wherein, the power supply model of solar photocell 1
TJ-0200, voltage regulator circuit 2 use LM7805 circuit of three-terminal voltage-stabilizing integrated, and A/D converter 3 uses ADC0809, liquid crystal display 4
Using LCD1602, microcontroller 5 is using the STC89C52RC of 51 series, and bleeder circuit 6 is by 3590S-2-103L partial pressure potential device
It is in series with 5K resistance, the detection model YL-10P-17b of solar photocell 7.
Power supply generates 9V voltage under outdoor natural light irradiation with solar photocell 1, uses power supply by voltage regulator circuit 2
The voltage stabilization of the output of solar photocell 1 is 5V, is the power supply of plant blade area measuring apparatus.Power switch 9 is for controlling
The on-off of the power supply of system.
Detection generates 12V voltage under outdoor natural light irradiation with solar photocell 7, is examined by bleeder circuit 6
Voltage transmission is surveyed to the channel IN0 of A/D converter 3.Channel selecting pin A, B and C of A/D converter 3 are directly grounded fixed choosing
The channel IN0 is selected to be converted.The P3.0-P3.3 pin of microcontroller 5 be separately connected START, ALE of A/D converter, EOC,
OUTPT ENABLE and CLK pin are converted and are read for controlling, the P1.0-P1.7 connection A/D converter 3 of microcontroller 5
Digital quantity pin D0-D7 is used to read the digital quantity of conversion, the data of the P2.0-P2.7 connection liquid crystal display 4 of microcontroller 5
Pin D0-D7 transmission display information, control terminal RS, R/W and E of the P0.0-P0.2 connection liquid crystal display 4 of microcontroller 5.Inspection
It surveys control button 8 to be connected with single-chip microcontroller P0.3, the acquisition for a reference value stores.
Fig. 3 is the surface structure schematic diagram of plant blade area measuring apparatus.Partial pressure potential device adjusting knob 10 is used for not
With the detection voltage for obtaining standard under the conditions of illumination, transparent cover plate 11 is for flattening tested blade.
The application method of plant blade area measuring apparatus is：The first step obtains the reference voltage under live lighting condition.?
Detection solar photocell 7 is above without blade and under conditions of covering transparent cover plate 11, by adjusting partial pressure potential device
Adjusting knob 10 observes the detection voltage show value of liquid crystal display 4, makes to detect voltage show value at the scene under lighting condition
5V is progressivelyed reach from lower than 5V, here it is vaneless reference voltages under lighting condition at the scene.Then by detection control button
8, save vaneless reference voltage.Second step, leaf area measurement.It is placed above in detection solar photocell 7 tested
Blade and transparent cover plate 11 is covered, the vaned detection voltage value and program that observation liquid crystal display 4 is shown are according to nothing
The blade face product value that the reference voltage of blade and vaned detection voltage are calculated.The operation of second step can repeat any more
It is secondary, carry out the measurement of multiple blades.
According to above-mentioned testing principle it is found that if, by detection control button 8, being exactly this during second step operation
The detection voltage value of blade is saved as reference voltage.Then the second step operation of another blade, liquid crystal display 4 are carried out
Show value is exactly the area difference of two blades.
The described example of the utility model is only used for explaining the utility model, however it is not limited to this utility model.Very much
The microcontroller of model can substitute STC89C52RC microcontroller used in the utility model, the pressure stabilizing electricity of many models
Road can substitute the integrated regulator of the LM7805 model in voltage regulator circuit 2, and the A/D converter of many models can replace
For ADC0809A/D converter used in the utility model, the display device of many models can substitute LCD1602 liquid crystal
Display screen, the potentiometer of many models can substitute the 3590S-2-103L partial pressure potential device in bleeder circuit, many models
Solar photocell can substitute YL-10P-17b detection solar photocell and TJ-0200 power supply solar photoelectric
Pond.Other I/O mouthfuls of microcontroller STC89C52RC can replace I/O used in the utility model mouthfuls of connection A/D converter
And liquid crystal display.A/D converter 0809 has 8 analog input channels, other any input channels all the way can substitute this reality
With novel used IN0 input channel.
Claims (3)
1. a kind of plant blade area measuring apparatus based on solar photocell, including：Solar photoelectric is used in microcontroller, power supply
Pond, voltage regulator circuit, detection solar photocell, transparent cover plate, bleeder circuit, partial pressure potential device adjusting knob, detection control
Key and A/D converter, it is characterised in that：Microcontroller by I/O pin connect A/D converter, liquid crystal display and
Control button is detected, one piece of power supply solar photocell is the power supply of entire plant blade area measuring apparatus by voltage regulator circuit,
One piece of detection solar photocell and a transparent cover plate constitute blade area sensing unit, and the voltage of sensing unit output connects
Bleeder circuit is connect, the output voltage of bleeder circuit is input to microcontroller by A/D converter and carries out areal calculation.
2. the plant blade area measuring apparatus according to claim 1 based on solar photocell, it is characterised in that：Detection
The output voltage of solar photocell connects bleeder circuit, and the partial pressure potential device in bleeder circuit passes through partial pressure potential device tune
The adjusting of section knob obtains required detection reference voltage under different illumination conditions.
3. the plant blade area measuring apparatus according to claim 1 based on solar photocell, it is characterised in that：Micro-control
Device processed connects the detection control button for saving detection reference voltage by I/O pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185288.8U CN208125118U (en) | 2018-02-02 | 2018-02-02 | A kind of plant blade area measuring apparatus based on solar photocell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185288.8U CN208125118U (en) | 2018-02-02 | 2018-02-02 | A kind of plant blade area measuring apparatus based on solar photocell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125118U true CN208125118U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820185288.8U Expired - Fee Related CN208125118U (en) | 2018-02-02 | 2018-02-02 | A kind of plant blade area measuring apparatus based on solar photocell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398116A (en) * | 2018-02-02 | 2018-08-14 | 河北农业大学 | A kind of plant blade area measuring apparatus based on solar photocell |
-
2018
- 2018-02-02 CN CN201820185288.8U patent/CN208125118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398116A (en) * | 2018-02-02 | 2018-08-14 | 河北农业大学 | A kind of plant blade area measuring apparatus based on solar photocell |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |