CN208334327U - A kind of plant transpiration on-line computing model - Google Patents
A kind of plant transpiration on-line computing model Download PDFInfo
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- CN208334327U CN208334327U CN201821096373.3U CN201821096373U CN208334327U CN 208334327 U CN208334327 U CN 208334327U CN 201821096373 U CN201821096373 U CN 201821096373U CN 208334327 U CN208334327 U CN 208334327U
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Abstract
The utility model discloses a kind of plant transpiration on-line computing models, including gas chamber, development board, component, leaf chamber and shell；Development board is fixedly connected inside the housing, and component includes solenoid valve, air pump and is set to the Temperature Humidity Sensor of plenum interior and is fixedly connected on the optical sensor of outer surface of outer cover, and solenoid valve, air pump and gas chamber are mutually fixedly connected with development board respectively；Gas chamber is connected with air pump and outside atmosphere respectively by pipeline, and air pump is connected by pipeline with solenoid valve, and solenoid valve is connected with leaf chamber and outside atmosphere respectively by pipeline；Temperature Humidity Sensor is used to detect the humidity and temperature of the air by gas chamber；Wifi module is integrated on development board, wifi module and server end, which are established, to be communicated to connect, and is analyzed for the data of Temperature Humidity Sensor and optical sensor detection to be sent to server end for server end；The utility model has the advantage of can be improved the accuracy to plant transpiration rates detection, real-time monitoring is easy to operate.
Description
Technical field
The utility model relates to plant transpiration detection technique fields, and in particular to a kind of plant transpiration on-line computing model.
Background technique
Methods of Reference Crop Evapotranspiration includes transpiration amount and ground evaporation between plants two parts.Transpiration refers to crop by root system
Intracorporal moisture is sucked from soil, is vaporized by leaf stoma chamber, is diffused under leaf-gas system water potential difference driving effect
Enter the process of atmosphere.
Existing detection process is required to be acquired the vapor that plant ontology transpiration generates, and is then calculated,
The existing method for calculating Methods of Reference Crop Evapotranspiration is divided into two kinds, and one is directly calculating Methods of Reference Crop Evapotranspiration, another kind is
Reference crop evapo-transpiration is first calculated, then calculates actual Methods of Reference Crop Evapotranspiration.
It is generally necessary to manually periodically go record testing result, then counted according to transpiration rate of multiple results to plant
It calculates, the frequency that the accuracy of calculated result receives record data influences, and the time interval of record is longer, the accuracy of calculated result
It is lower, and the mode of manual record may be there is a situation where data recording error, the course of work is complicated.
Utility model content
The purpose of this utility model is to provide a kind of plant transpiration on-line computing models, to improve to plant transpiration rates
The accuracy of detection, it is easy to carry.
To achieve the above object, the technical solution of the utility model are as follows:
A kind of plant transpiration on-line computing model, including shell, gas chamber, development board, component and leaf chamber；
Development board is fixedly connected inside the housing, and gas chamber is fixedly connected on development board, and component includes solenoid valve, air pump
With the Temperature Humidity Sensor for being set to plenum interior, solenoid valve, air pump and gas chamber are mutually fixedly connected with development board respectively；
Gas chamber is connected with air pump and outside atmosphere respectively by pipeline, and air pump is connected by pipeline with solenoid valve,
Solenoid valve is connected with leaf chamber and outside atmosphere respectively by pipeline；Solenoid valve is connected for control leaf chamber respectively with air pump
Or outside atmosphere is connected with air pump；
Aperture is offered in leaf chamber, leaf chamber is connected by aperture with outside air；
Temperature Humidity Sensor is used to detect the humidity and temperature of the air by gas chamber；
Wifi module is integrated on development board, wifi module and server end, which are established, to be communicated to connect, for passing temperature and humidity
The data of sensor detection are sent to server end；
Server end is used to analyze the data of Temperature Humidity Sensor detection.
The utility model is further arranged to: further including the optical sensor for being fixedly connected on outer surface of outer cover, for examining
Survey the intensity of illumination of shell exterior environment.
The utility model is further arranged to: the leaf chamber includes a pair of of framework, and the mutual split of framework is fixedly connected, framework
What is be located remotely from each other is fixedly connected to cover board on one side, and the inside of cover board and framework constitutes closed space, and cover board uses transparent material
Matter is made.
The utility model is further arranged to: the framework is made of resin material.
The utility model is further arranged to: two frameworks it is close to each other be fixedly connected with magnet, framework on one side
Splicing is mutually attracted by being located at the magnet on the inside of two frameworks.
The utility model is further arranged to: the shell includes box body and box cover, and box body is mutually permanently connected with box cover,
The first air inlet is offered on box body, the first air inlet is connected by pipeline with the solenoid valve.
The utility model is further arranged to: gas outlet is offered on the box body, gas outlet passes through pipeline and the gas
Pump is connected.
The utility model is further arranged to: the pipeline is rubber hose.
The utility model has the advantages that
1, solenoid valve can control leaf chamber respectively and be connected with gas chamber or outside air with gas chamber, so that tolerance is sufficient, source
It is independent, facilitate comparison；
2, gas circuit integrally uses closed, guarantees that test gas surveys source, improves measurement accuracy；
3, server end can generate tendency chart online, convenient for users to being more clearly seen the variation of data, and can be manual
Under send instructions instrument made to work, local can also be downloaded data to, be user-friendly for data processing；The network platform is succinctly straight
It sees, right place propelling data, convenient for users to seeing the state of the variation of plant local environment and plant itself at the first time, with
Just improve surrounding plants environment in time and respective handling is made to plant；
4, gas exchanges are carried out using air pump, guarantees that feed rate is stablized, flow velocity is certain；
5, compact is convenient for carrying, waterproofing design, can apply to various agricultural environment, and hardware cost is lower, cost performance
Height can be monitored in real time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram that development board and component structure are embodied in embodiment 1；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Fig. 4 is the schematic diagram that connection relationship between each component is embodied in embodiment 2.
Wherein,
1, development board；11, the first pcb board；12, the second pcb board；
2, component；21, air pump；22, solenoid valve；23, optical sensor；
3, gas chamber；
4, leaf chamber；41, framework；411, the second air inlet；42, cover board；43, magnet；44, aperture；
5, tracheae；
6, shell；61, box body；611, the first air inlet；612, gas outlet；62, box cover.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
A kind of plant transpiration on-line computing model, complex chart 1 and Fig. 2, including development board 1, component 2, gas chamber 3,4 and of leaf chamber
Shell 6, shell 6 is closed and is constituted by box body 61 and the mutually lid of box cover 62, detachable by fastener between box body 61 and box cover 62
It is fixedly connected.
Development board 1 includes the first pcb board 11 and the second pcb board 12, and the first pcb board 11 is fixedly connected on 61 inside of box body
On bottom surface, component 2 includes the air pump 21 being fixedly connected respectively with 11 phase of the first pcb board, solenoid valve 22 and is set to device room 3
Internal Temperature Humidity Sensor, gas chamber 3 are fixedly connected with 11 phase of the first pcb board.Gas chamber 3 passes through rubber hose (being not drawn into figure)
It is connected respectively with air pump 21 and outside atmosphere, air pump 21 is connected by rubber hose with solenoid valve 22, and solenoid valve 22 is logical
Rubber hose is crossed to be connected with leaf chamber 4 and outside atmosphere respectively；Solenoid valve 22 is connected for control leaf chamber 4 respectively with air pump 21
Logical or outside atmosphere is connected with air pump 21.Specific connection relationship between gas chamber 3, air pump 21 and solenoid valve 22, referring to fig. 4
Box cover 62 is fixedly connected with optical sensor 23 far from box body 61 on one side, for detecting intensity of illumination, with determination
Plant illumination at ambient intensity.
The first air inlet 611 and gas outlet 612 are offered on box body 61, the first air inlet 611 is used to connect rubber hose,
3 inner space of gas chamber is set to be connected with outside atmosphere.First air inlet 611 is connected by rubber hose with solenoid valve 22, electricity
Magnet valve 22 can control connection or closing between air pump 21 and leaf chamber 4.Gas outlet 612 is connected by rubber hose with gas chamber 3,
Air pump 21 gas in gas chamber 3 can be discharged by gas outlet 612.
In conjunction with Fig. 3, leaf chamber 4 includes the framework 41 of a pair of of rectangular frame structure, and the mutual split of framework 41 is fixedly connected.Framework 41
What is be located remotely from each other is fixedly connected to cover board 42 on one side, and cover board 42 makes the (cover board in Fig. 1 and Fig. 2 using transparent acrylic
42 views have been all made of transparent form and have shown, in order to observe the structure of 4 inner space of leaf chamber), framework 41 uses resinous wood
Material production, the inside of cover board 42 and framework 41 constitute closed space, and when work, blade is clipped in 4 inner space of leaf chamber.Framework
Aperture 44 is offered on 41 side, outside air flows into 4 cocurrent of leaf chamber from aperture 44 and enters the second air inlet by blade face
411, eventually enter into gas chamber 3.
The second air inlet 411 being connected with inner space is offered on the inside of framework 41, is fixedly connected on the outside of framework 41
Tracheae 5,4 inner space of leaf chamber are connected by tracheae 5 with gas chamber 3, and the gas in leaf chamber 4 is made to flow through solenoid valve by tracheae 5
22, it is extracted into gas chamber 3 by air pump 21.
Two frameworks 41 it is close to each other be fixedly connected to magnet 43 on one side, magnet 43 is uniformly distributed along framework 41.With
So that two frameworks 41 more can closely inhale together after docking, improve and be bonded tightness degree between framework 41, improves leaf
The airtightness of room 4.
Temperature Humidity Sensor is set to inside gas chamber 3, for detecting the temperature and humidity of 3 inner air of gas chamber.
Wifi module (being not drawn into figure) is integrated on second pcb board 12, for sending out Temperature Humidity Sensor detection data
It is sent to the matched server end used or receives execution order (such as operation of air pump 21 or stopping, electricity that server end issues
Magnet valve 22 opens or closes).
The course of work: the blade of measuring plants to be checked is clipped between two frameworks 41, and blade is made to be located at the sky inside leaf chamber 4
Between in.Wifi module receives the instruction of server end, and control solenoid valve 22 is opened, between the first air inlet 611 and gas chamber 3 mutually
Connection, air pump 21, which brings into operation, is evacuated the first air inlet 611, outside atmosphere is evacuated in gas chamber 3, Temperature Humidity Sensor
Detect the temperature and humidity (being at this time aerial temperature and humidity) of air in gas chamber 3, the intensity of illumination data that optical sensor 23 detects.
Solenoid valve 22 is switched between air pump 21 and the first air inlet 611 and is closed, and is connected between air pump 21 and the second air inlet 411, gas
Air in leaf chamber 4 is sucked gas chamber 3 by 21 starting of pump, and the temperature and humidity that Temperature Humidity Sensor detects in gas chamber 3 (is at this time leaf
Piece temperature and humidity), the intensity of illumination data that optical sensor 23 detects.The gas data in leaf chamber 4 that sensor will test, outside
Air data and intensity of illumination data are recorded in the data processing chip integrated on pcb board and are packaged and sent out by wifi module
It gives server end and carries out processing analysis.Due to carrying out data collection and analysis, alternative manual record number using wireless communication
According to calculated result is more acurrate, easy to carry using more convenient.
Test interval be every 10 minutes one group, length of testing speech be 100 seconds, wherein the length of testing speech of aerial temperature and humidity be 20
Second, the length of testing speech of 4 aerial temperature and humidity of leaf chamber is 80 seconds.Under this test frequency and test method, can effectively show by
The transpiration rate variation tendency for surveying plant one day, recognizes plant transpiration state in time.
Following two algorithm is used in this equipment:
(1) saturated vapor water pressure with degree Celsius conversion formula:
Y=0.0568*Ta3+0.6374*Ta2+51.166*Ta+610.8, Y is saturated vapor water pressure, Ta in this formula
To test obtained air themperature (degree Celsius), this formula fits to come for the table referring to saturated vapor water pressure and temperature transition
Polynomial equation.
(2) transpiration rate formula:
Obtained saturated vapor water pressure is scaled millimetres of mercury by the first step,
MmHg=Y*0.0075,
Second step brings rising formula into and acquires transpiration rate,
E=289*mmHg* (RH leaf-RH is empty)/(Ta+273) * V/A/S/18*1000, wherein E is rising speed in this formula
Rate, RH leaf and RH sky are respectively air humidity and air humidity in leaf chamber 4 that equipment measures, and V is 4 volume of leaf chamber, and A is blade quilt
The area of part is clamped, S is the testing time, remaining number is parameter or formula scales.
Embodiment 2
The detection method of plant transpiration rates, using the online rising photosynthetic instrument of the movable type in embodiment 1, in conjunction with Fig. 4, packet
Include following steps:
S1: server end controls optical sensor 23 and air pump 21 works；
S2: server end controls air pump 21 and works；
S3: preceding 20s solenoid valve 22 controls the first air inlet 611 and opens, and the second air inlet 411 is closed；
S4: outside air is sucked gas chamber 3 by air pump 21；
S5: Temperature Humidity Sensor detects the temperature and humidity in gas chamber 3；
S6: rear 80s solenoid valve 22 controls the second air inlet 411 and opens, and the first air inlet 611 is closed；
S7: the air in leaf chamber 4 is sucked gas chamber 3 by air pump 21；
S8: sensor detects leaf temperature and humidity；
S9: data are packaged；
Packaged data are sent to server end by S10:wifi module；
S11: server end analysis detecting data and will analysis result by display be depicted as line chart or bar chart with
Convenient for showing or being analyzed by user data and draw line chart.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (8)
1. a kind of plant transpiration on-line computing model, it is characterized in that: including shell (6), gas chamber (3), development board (1), component (2)
With leaf chamber (4)；
Development board (1) is fixedly connected on shell (6) inside, and gas chamber (3) is fixedly connected on development board (1), and component (2) includes
Solenoid valve (22), air pump (21) and the Temperature Humidity Sensor for being set to gas chamber (3) inside, solenoid valve (22), air pump (21) are gentle
Room (3) is mutually fixedly connected with development board (1) respectively；
Gas chamber (3) is connected with air pump (21) and outside atmosphere respectively by pipeline, and air pump (21) passes through pipeline and solenoid valve
(22) it is connected, solenoid valve (22) is connected with leaf chamber (4) and outside atmosphere respectively by pipeline；Solenoid valve (22) is for dividing
Not Kong Zhi leaf chamber (4) be connected with air pump (21) or outside atmosphere is connected with air pump (21)；
It is offered in leaf chamber (4) aperture (44), leaf chamber (4) is connected by aperture (44) with outside air；
Temperature Humidity Sensor is used to detect the humidity and temperature of the air by gas chamber (3)；
Wifi module is integrated on development board (1), wifi module and server end, which are established, to be communicated to connect, and is used for temperature and humidity sensing
The data of device detection are sent to server end；
Server end is used to analyze the data of Temperature Humidity Sensor detection.
2. a kind of plant transpiration on-line computing model according to claim 1, it is characterized in that: further including being fixedly connected on shell
(6) optical sensor (23) of outer surface, for detecting the intensity of illumination of shell (6) external environment.
3. a kind of plant transpiration on-line computing model according to claim 1, it is characterized in that: the leaf chamber (4) includes a pair
Framework (41), framework (41) mutually split are fixedly connected, and what framework (41) was located remotely from each other is fixedly connected to cover board (42) on one side,
The inside of cover board (42) and framework (41) constitutes closed space, and cover board (42) is made of transparent material；The side of framework (41)
It is offered on face aperture (44), leaf chamber (4) is connected by aperture (44) with outside air.
4. a kind of plant transpiration on-line computing model according to claim 3, it is characterized in that: the framework (41) uses resin
Material is made.
5. a kind of plant transpiration on-line computing model according to claim 3, it is characterized in that: two frameworks (41) are mutual
Close is fixedly connected with magnet (43) on one side, and framework (41) is by being located at the magnet (43) on the inside of two frameworks (41) mutually
It is attracted splicing.
6. a kind of plant transpiration on-line computing model according to claim 1, it is characterized in that: the shell (6) includes box body
(61) it is mutually permanently connected with box cover (62), box body (61) with box cover (62), box body offers the first air inlet on (61)
(611), the first air inlet (611) is connected by pipeline with the solenoid valve (22).
7. a kind of plant transpiration on-line computing model according to claim 6, it is characterized in that: being offered on the box body (61)
Gas outlet (612), gas outlet (612) are connected by pipeline with the air pump (21).
8. a kind of plant transpiration on-line computing model according to any one of claims 1 to 7, it is characterized in that: the pipeline is
Rubber hose.
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| CN201821096373.3U CN208334327U (en) | 2018-07-11 | 2018-07-11 | A kind of plant transpiration on-line computing model |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614082A (en) * | 2018-07-11 | 2018-10-02 | 北京农学院 | A kind of plant transpiration on-line computing model |
| CN110161191A (en) * | 2019-06-20 | 2019-08-23 | 北京农学院 | A kind of intelligence plant physiology monitor |
-
2018
- 2018-07-11 CN CN201821096373.3U patent/CN208334327U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614082A (en) * | 2018-07-11 | 2018-10-02 | 北京农学院 | A kind of plant transpiration on-line computing model |
| CN108614082B (en) * | 2018-07-11 | 2024-04-16 | 北京农学院 | Plant transpiration on-line monitoring appearance |
| CN110161191A (en) * | 2019-06-20 | 2019-08-23 | 北京农学院 | A kind of intelligence plant physiology monitor |
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