CN113418888A - Modularized plant photosynthesis detector - Google Patents
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- CN113418888A CN113418888A CN202110683544.2A CN202110683544A CN113418888A CN 113418888 A CN113418888 A CN 113418888A CN 202110683544 A CN202110683544 A CN 202110683544A CN 113418888 A CN113418888 A CN 113418888A
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- 230000029553 photosynthesis Effects 0.000 title claims abstract description 13
- 238000010672 photosynthesis Methods 0.000 title claims abstract description 13
- 238000002474 experimental method Methods 0.000 claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 34
- 230000000243 photosynthetic effect Effects 0.000 claims description 25
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 22
- 238000013480 data collection Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 5
- 230000005068 transpiration Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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Abstract
本发明公开了一种模块化植物光合检测仪，具体涉及光合检测领域，包括控制机箱和测定仪主体，所述控制机箱设置在所述测定仪主体的一端，所述控制机箱的内部设置有触控一体屏，所述触控一体屏的内部依次设置有Dams数据采集分析程序、现场息载网络、无线空中接口NBIot、嵌入式计算机IotGW、传感器接口模块IotNode和mariaDB数据库，所述控制机箱的外部一侧设置有叶室本体。本发明通过嵌入式计算机IotGW上传至Dams数据采集分析程序内部，经过Dams数据采集分析程序的分析计算，然后将实验数据上传至mariaDB数据库中，所述Dams数据采集分析程序可以随时调出mariaDB数据库内部保存的实验数据，与现有技术进行比对分析，以便于更加完善实验。
The invention discloses a modular plant photosynthesis detector, in particular to the field of photosynthesis detection, comprising a control case and a tester main body, the control case is arranged at one end of the tester main body, and a touch panel is arranged inside the control case Control integrated screen, the interior of the touch integrated screen is sequentially provided with Dams data acquisition and analysis program, on-site information network, wireless air interface NBIot, embedded computer IotGW, sensor interface module IotNode and mariaDB database, the outside of the control chassis is One side is provided with a leaf chamber body. The present invention uploads to the Dams data acquisition and analysis program through the embedded computer IotGW, and then uploads the experimental data to the mariaDB database through the analysis and calculation of the Dams data acquisition and analysis program, and the Dams data acquisition and analysis program can call out the inside of the mariaDB database at any time. The saved experimental data is compared and analyzed with the existing technology, so as to improve the experiment.
Description
Technical Field
The invention relates to the technical field of photosynthetic instruments, in particular to a modular plant photosynthetic detector.
Background
At present, the design of the gas circuit of the photosynthetic apparatus is mainly as follows: open-loop measurement and closed-loop measurement. The open-circuit determination uses an air pump as power, air is exhausted after flowing through an assimilation chamber, and the photosynthetic rate is calculated by measuring the concentration difference of CO2 in the air before and after entering the assimilation chamber and the ventilation quantity; the closed-circuit measurement is composed of a loop consisting of a gas pump, an assimilation chamber and sensing equipment such as a CO2 analyzer, a plant or a leaf to be observed is closed in the assimilation chamber and does not exchange with external gas, and the photosynthetic rate is obtained according to the reduction rate of the concentration of CO2 in the system and the volume of the system. Early photosynthesis instruments were mostly closed-loop measurement systems, limited by the resolution and accuracy of the CO2 infrared sensor. The closed-loop assay system is the simplest configuration, requires less IRGA and does not require flow rate determination. However, the closed-loop measurement system has the major disadvantage that the air humidity in the assimilation chamber is continuously increased due to repeated air circulation, the change of the CO2 concentration in the assimilation chamber is not a steady process, and the measured value is not a true reflection of the photosynthetic rate obtained under the condition of constant CO2 concentration. With the development of IRGA technology, open-circuit measurement systems have become popular in which microclimate elements around the leaves are easier to control. The photosynthetic apparatus realizes the network interconnection above the network layer, and through setting up the modularization photosynthetic apparatus, can improve the efficiency of data transmission and integration to the efficiency of test system is wholly improved.
Currently, the infrared analyzers applied to photosynthesis research are generally classified into two types according to the number of measurement gas chambers: single-cell type and double-cell type. A single-gas chamber infrared analyzer is used for measuring the absolute value of the concentration of CO 2; a dual cell infrared CO2 analyzer can determine the difference in CO2 concentration between the reference cell and the reference cell. Two air chambers were compared: the single air chamber design scheme of the single air source, the single air chamber and the single sensor is more convenient to carry, the production cost of the product is reduced to a certain degree, but the single air chamber cannot synchronously research the air source and the assimilation chamber gas, so that the requirement on the stability of the air source is higher. Although many methods have been developed to ensure a stable gas source, the error caused by the gas source is inevitable. The double-air-chamber design scheme of the single air source, the double air chambers and the double sensors effectively overcomes the defect that the single air chamber cannot synchronously research air source air and assimilation chamber air, but errors of sensor consistency can be caused due to the use of the two sensors, the existing photosynthetic apparatus can only passively receive information and then transmit the information, and follow-up experimental efficiency is low due to the fact that the information received by the photosynthetic apparatus is inaccurate.
Disclosure of Invention
In order to overcome the above drawbacks of the prior art, embodiments of the present invention provide a modular plant photosynthesis detector, which solves the above problems in the background art by using a single air source, a dual air chamber, and a dual sensor.
In order to achieve the purpose, the invention provides the following technical scheme: a modularized plant photosynthesis detector comprises a control cabinet and a tester main body, wherein the control cabinet is arranged at one end of the tester main body, a touch integrated screen is arranged inside the control cabinet, a data acquisition and analysis program, a field information network, a wireless air interface NBIot, an embedded computer IotGW, a sensor interface module IotNode and a mariDB database are sequentially arranged inside the touch integrated screen, and a leaf chamber body is arranged on one side of the outside of the control cabinet;
a modular plant photosynthetic detector specifically comprises the following steps:
s1: a main control chip is arranged inside the photosynthetic apparatus, wherein the control of the main control chip is divided into an inside box and an outside box;
s2: the inside of the box is respectively provided with a CO2 infrared analyzer, a flow meter, a temperature and humidity sensor, a flow regulator and a relay, and one end of the flow regulator is respectively provided with a micro pump and an electromagnetic valve;
s3: air is evacuated after flowing through the assimilation chamber through a micro pump, and the photosynthetic rate is calculated by measuring the concentration difference and the ventilation volume of CO2 in the air before and after entering the assimilation chamber;
s4: the opening and closing of the valve inside the assimilation chamber are controlled through the electromagnetic valve, and then the valve is controlled through the electromagnetic valve according to the operation steps of the experiment so as to adjust the required experiment data;
s5: measuring the air temperature of carbon dioxide in the leaf chamber body, the leaf temperature, the air humidity in the leaf chamber body and the ventilation flow data through a photosynthesis instrument experiment;
s6: the inside of leaf chamber body 105 is provided with light quantum sensor, baroceptor, communication module, environment humidity sensor, environment temperature sensor and blade temperature sensor respectively, the input of baroceptor is connected with the output of micropump, communication module is through on-the-spot information carrying network and user mobile terminal signal connection, light quantum sensor, baroceptor, communication module, environment humidity sensor, blade temperature sensor and environment temperature sensor with the dam data acquisition analysis program is connected, dam data acquisition analysis program with mariaDB database is connected.
S7: the method comprises the steps that corresponding data in a leaf chamber body are collected through a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, a blade temperature sensor and an environment temperature sensor, then the data are uploaded to the interior of a data acquisition and analysis program through a field information network, and the collected data are collected, arranged and transmitted to the interior of a mariDB database for storage through the data acquisition and analysis program.
In a preferred embodiment, the inside bottom of the integrative screen of touch-control is provided with the singlechip, the integrative screen of touch-control with adopt Modbus communication between the singlechip, Modbus communication supports multiple communication interface simultaneously, realizes the integration, practices thrift the cost, and is nimble multi-purpose.
In a preferred embodiment, the dam data collection and analysis program is in signal connection with the maridb database, the embedded computer iot gw, and the sensor interface module iot node through the field information network.
In a preferred embodiment, the main body of the measuring instrument comprises a display screen, a main body and a support frame, the main body is arranged at one end of the display screen, the upper end of the support frame is fixedly connected with the lower end of the main body, and the output end of the main body is electrically connected with the input end of the leaf chamber body.
In a preferred embodiment, inside of leaf room body has set gradually air temperature sensor, blade temperature sensor, leaf room humidity transducer and flow sensor, air temperature sensor, blade temperature sensor, leaf room humidity transducer and flow sensor all with the inside fixed connection of leaf room body, the inside of leaf room body is provided with the laboratory plant, air temperature sensor, blade temperature sensor, leaf room humidity transducer and flow sensor are respectively CO2 infrared analyzer, flowmeter, temperature and humidity sensor and flow regulator are corresponding.
In a preferred embodiment, the output end of the flow regulator is electrically connected with the input ends of the electromagnetic valve and the micropump respectively, and the opening and closing of the electromagnetic valve and the micropump are controlled through the flow regulator, so that the accuracy of accurate measurement data during experiments is facilitated.
In a preferred embodiment, the sensor interface module IotNode is connected to the main body of the leaf room, and the air temperature sensor, the blade temperature sensor, the leaf room humidity sensor and the flow sensor are electrically connected to the sensor interface module IotNode and the embedded computer IotGW, the relevant data collected inside the main body of the leaf room is uploaded to the embedded computer IotGW through the air temperature sensor, the blade temperature sensor, the leaf room humidity sensor and the flow sensor through the sensor interface module IotNode for collection and calculation, then uploaded to the dam data collection and analysis program through the embedded computer IotGW, analyzed and calculated by the dam data collection and analysis program, and then uploaded to the maridb database, the dam data collection and analysis program can call up the experimental data stored inside the maridb database at any time for comparison and analysis with the prior art, so as to further refine the experiment.
The invention has the technical effects and advantages that:
1. when the device is used, an air temperature sensor, a blade chamber humidity sensor and a flow sensor are sequentially arranged inside the blade chamber body, the air temperature sensor, the blade chamber humidity sensor and the flow sensor are fixedly connected with the inside of the blade chamber body, an experimental plant is arranged inside the blade chamber body, the air temperature sensor, the blade chamber humidity sensor and the flow sensor, in addition, a CO2 infrared analyzer, a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, the blade temperature sensor and an environment temperature sensor are respectively arranged inside the blade chamber body 105, the input end of the air pressure sensor is connected with the output end of the micropump, the communication module is in signal connection with a user mobile terminal through an on-site information carrying network, the light quantum sensor, the air pressure sensor, The communication module, the environment humidity sensor, the blade temperature sensor and the environment temperature sensor are connected with a dam data acquisition and analysis program, the sensor interface module IotNode is connected with the leaf chamber body, the air temperature sensor, the blade temperature sensor, the leaf chamber humidity sensor and the flow sensor are electrically connected with the sensor interface module IotNode and the embedded computer IotGW, relevant data acquired inside the leaf chamber body are uploaded to the embedded computer IotGW through the air temperature sensor, the blade temperature sensor, the leaf chamber humidity sensor and the flow sensor to be acquired and calculated, then the relevant data are uploaded to the inside of the embedded computer IotGW through the embedded computer IotGW to be acquired and calculated, and then the experimental data are uploaded to a mariDB database through the analysis and calculation of the dam data acquisition and analysis program, the dam data acquisition and analysis program can call out experimental data stored inside the mariDB database at any time, compared with the prior art, the design scheme of the single gas source, the double gas chambers and the double sensors effectively overcomes the defect that the single gas chamber cannot synchronously research gas source gas and assimilation chamber gas, and reduces errors so as to improve the experiment;
2. when the device is used, the transpiration rate is measured through the determinator main body, wherein the determinator main body comprises a display screen, a host and a support frame, the host is arranged at one end of the display screen, the upper end of the support frame is fixedly connected with the lower end of the host, the output end of the host is electrically connected with the input end of the leaf chamber body, so that the transpiration rate can be accurately measured through the determinator main body, a single chip microcomputer is arranged on the inner bottom layer of the touch integrated screen, Modbus communication is adopted between the touch integrated screen and the single chip microcomputer, the Modbus communication simultaneously supports various communication interfaces, and in addition, the IotNode has rich interfaces and is provided with high-speed data acquisition and uploading; the data is stored locally, and the low-power-consumption mode energy-saving function is achieved, so that the integration is realized, the cost is saved, and the device is flexible and multipurpose.
Drawings
FIG. 1 is a schematic view showing the structure of a measuring instrument main body according to the present invention.
Fig. 2 is a schematic diagram of the principle framework of the present invention.
Fig. 3 is a schematic diagram of the hardware structure of the present invention.
The reference signs are: 101. a meter main body; 102. a host; 103. a support frame; 104. a display screen; 105. a leaf chamber body; 200. touch control integrated screen; 201. a data acquisition and analysis program of dam; 202. a mariaDB database; 203. a live information-bearing network; 204. a radio air interface NBIot; 205. an embedded computer IotGW; 206. a control cabinet; 207. a sensor interface module IotNode; 209. an air temperature sensor; 210. a blade temperature sensor; 211. a leaf chamber humidity sensor; 212. a gas flow sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a modularized plant photosynthesis detector as shown in fig. 1-3, which comprises a control cabinet 206 and a tester main body 101, wherein the control cabinet 206 is arranged at one end of the tester main body 101, a touch integrated screen 200 is arranged inside the control cabinet 206, a Dams data acquisition and analysis program 201, a field information network 203, a wireless air interface NBIot204, an embedded computer iot gw205, a sensor interface module iot node207 and a maridb database 202 are sequentially arranged inside the touch integrated screen 200, and a leaf chamber body 105 is arranged on one side of the outside of the control cabinet 206.
A modular plant photosynthetic detector specifically comprises the following steps:
s1: a main control chip is arranged inside the photosynthetic apparatus, wherein the control of the main control chip is divided into an inside box and an outside box;
s2: wherein, the inside of the box is respectively provided with a CO2 infrared analyzer, a flow meter, a temperature and humidity sensor, a flow regulator and a relay, and one end of the flow regulator is respectively provided with a micro pump and an electromagnetic valve;
s3: air is evacuated after flowing through the assimilation chamber through a micro pump, and the photosynthetic rate is calculated by measuring the concentration difference and the ventilation volume of CO2 in the air before and after entering the assimilation chamber;
s4: the opening and closing of the valve inside the assimilation chamber are controlled through the electromagnetic valve, and then the valve is controlled through the electromagnetic valve according to the operation steps of the experiment so as to adjust the required experiment data;
s5: measuring data of air temperature of carbon dioxide inside the leaf chamber body 105, leaf temperature, air humidity inside the leaf chamber body 105 and ventilation flow rate through a photosynthesis meter experiment;
s6: the inside of the leaf chamber body 105 is respectively provided with a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, a blade temperature sensor and an environment temperature sensor, the input end of the air pressure sensor is connected with the output end of the micropump, the communication module is in signal connection with a user mobile terminal through a field information network 203, the light quantum sensor, the air pressure sensor, the communication module, the environment humidity sensor, the blade temperature sensor and the environment temperature sensor are connected with a dam data acquisition and analysis program 201, and the dam data acquisition and analysis program 201 is connected with a mariaDB database 202;
s7: the corresponding data in the leaf chamber body 105 are collected through a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, a blade temperature sensor and an environment temperature sensor, then uploaded to the inside of a data acquisition and analysis program 201 through a field information network 203, collected data are collected and sorted through the data acquisition and analysis program 201, and then transmitted to a mariaDB database 202 for storage.
As shown in fig. 2, a single chip microcomputer is arranged on the bottom layer inside the touch screen 200, Modbus communication is adopted between the touch screen 200 and the single chip microcomputer, and the Modbus communication simultaneously supports multiple communication interfaces, so that integration is realized, cost is saved, and the touch screen is flexible and multipurpose.
As shown in fig. 2, the dam data collection and analysis program 201 is in signal connection with the maridb database 202, the embedded computer iot gw205 and the sensor interface module iot node207 through the on-site information-carrying network 203, so that the embedded computer iot gw205, the sensor interface module iot node207 and the dam data collection and analysis program 201 are connected through the on-site information-carrying network 203.
As shown in fig. 1, the main body 101 of the measuring apparatus includes a display screen 104, a main body 102 and a support frame 103, the main body 102 is disposed at one end of the display screen 104, the upper end of the support frame 103 is fixedly connected with the lower end of the main body 102, and the output end of the main body 102 is electrically connected with the input end of the leaf chamber body 105, so as to measure the transpiration rate.
As shown in fig. 2, an air temperature sensor 209, a vane temperature sensor 210, a vane humidity sensor 211 and a gas flow sensor 212 are sequentially arranged inside the leaf chamber body 105, the air temperature sensor 209, the vane temperature sensor 210, the vane humidity sensor 211 and the gas flow sensor 212 are all fixedly connected with the inside of the leaf chamber body 105, laboratory plants are arranged inside the leaf chamber body 105, and the air temperature sensor 209, the vane temperature sensor 210, the vane humidity sensor 211 and the gas flow sensor 212 respectively correspond to a CO2 infrared analyzer, a flow meter, a temperature and humidity sensor and a flow regulator.
As shown in fig. 3, the output end of the flow regulator is electrically connected to the input ends of the solenoid valve and the micro pump, and the solenoid valve and the micro pump are controlled to open and close by the flow regulator, so as to accurately measure the accuracy of data during the experiment.
As shown in fig. 2, the sensor interface module IotNode207 is connected to the main body 105 of the leaf room, and the air temperature sensor 209, the blade temperature sensor 210, the leaf room humidity sensor 211 and the gas flow sensor 212 are electrically connected to the sensor interface module IotNode207 and the embedded computer IotGW205, the relevant data collected inside the main body 105 of the leaf room is uploaded to the embedded computer IotGW205 through the air temperature sensor 209, the blade temperature sensor 210, the leaf room humidity sensor 211 and the gas flow sensor 212 through the sensor interface module IotNode207 for collection and calculation, and then uploaded to the data collection and analysis program 201 through the embedded computer IotGW205, and analyzed and calculated by the data collection and analysis program 201, and then uploaded the experimental data to the maridb database 202, the data collection and analysis program 201 can call up the experimental data stored inside the maridb database 202 at any time, compared with the prior art for analysis, so as to improve the experiment.
The invention has the beneficial effects that: when in use, the inside of the leaf chamber body 105 is sequentially provided with an air temperature sensor 209, a blade temperature sensor 210, a leaf chamber humidity sensor 211 and a gas flow sensor 212, the air temperature sensor 209, the blade temperature sensor 210, the leaf chamber humidity sensor 211 and the gas flow sensor 212 are all fixedly connected with the inside of the leaf chamber body 105, the inside of the leaf chamber body 105 is provided with laboratory plants, the air temperature sensor 209, the blade temperature sensor 210, the leaf chamber humidity sensor 211 and the gas flow sensor 212 respectively correspond to a CO2 infrared analyzer, a flow meter, a temperature and humidity sensor and a flow regulator, the inside of the leaf chamber body 105 is respectively provided with a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, a blade temperature sensor and an environment temperature sensor, the input end of the air pressure sensor is connected with the output end of the micropump, the communication module is in signal connection with a user mobile terminal through a field information network 203, the optical quantum sensor, the air pressure sensor, the communication module, the environment humidity sensor, the blade temperature sensor and the environment temperature sensor are connected with a dam data acquisition and analysis program 201, the sensor interface module IotNode207 is connected with the leaf chamber body 105, the air temperature sensor 209, the blade temperature sensor 210, the leaf chamber humidity sensor 211 and the gas flow sensor 212 are electrically connected with the sensor interface module IotNode207 and an embedded computer IotGW205, relevant data acquired inside the leaf chamber body 105 are uploaded to the embedded computer IotGW205 through the air temperature sensor 209, the blade temperature sensor 210, the leaf chamber humidity sensor 211 and the gas flow sensor 212 for acquisition and calculation through the sensor interface module IotNode207, and then uploaded to the inside of the dam data acquisition and analysis program 201 through the embedded computer IotGW205, through the analysis and calculation of the dam data acquisition and analysis program 201, the experimental data is uploaded to the maria DB database 202, the dam data acquisition and analysis program 201 can call the experimental data stored in the maria DB database 202 at any time, the comparison and analysis are carried out with the prior art, the design scheme of the single air source, the double air chambers and the double air chambers of the double sensors effectively solves the defect that the single air chamber can not synchronously study air source gas and assimilation chamber gas so as to improve the experiment, in addition, the transpiration rate is measured through the determinator main body 101, wherein the determinator main body 101 comprises a display screen 104, a host 102 and a support frame 103, the host 102 is arranged at one end of the display screen 104, the upper end of the support frame 103 is fixedly connected with the lower end of the host 102, the output end of the host 102 is electrically connected with the input end of the leaf chamber main body 105 so as to accurately measure the transpiration rate through the determinator main body 101, in addition, a single chip microcomputer is arranged at the bottom layer in the touch screen 200, modbus communication is adopted between the touch integrated screen 200 and the single chip microcomputer, the Modbus communication simultaneously supports various communication interfaces, and in addition, the IotNode has rich interfaces and is capable of acquiring and uploading high-speed data; the data is stored locally, and the low-power-consumption mode energy-saving function is achieved, so that the integration is realized, the cost is saved, and the device is flexible and multipurpose.
And finally: the present invention is not limited to the above preferred embodiments, but rather, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A modular plant photosynthesis detector is characterized by comprising a control cabinet (206) and a tester main body (101), wherein the control cabinet (206) is arranged at one end of the tester main body (101), a touch integrated screen (200) is arranged inside the control cabinet (206), a Dams data acquisition and analysis program (201), a field information carrying network (203), a wireless air interface NBIot (204), an embedded computer IotGW (205), a sensor interface module IotNode (207) and a mariaDB database (202) are sequentially arranged inside the touch integrated screen (200), and a leaf chamber body (105) is arranged on one side of the outside of the control cabinet (206);
the operation method of the photosynthetic detector further comprises the following steps:
s1: a main control chip is arranged inside the photosynthetic apparatus, wherein the control of the main control chip is divided into an inside box and an outside box;
s2: the inside of the box is respectively provided with a CO2 infrared analyzer, a flow meter, a temperature and humidity sensor, a flow regulator and a relay, and one end of the flow regulator is respectively provided with a micro pump and an electromagnetic valve;
s3: air is evacuated after flowing through the assimilation chamber through a micro pump, and the photosynthetic rate is calculated by measuring the concentration difference and the ventilation volume of CO2 in the air before and after entering the assimilation chamber;
s4: the opening and closing of the valve inside the assimilation chamber are controlled through the electromagnetic valve, and then the valve is controlled through the electromagnetic valve according to the operation steps of the experiment so as to adjust the required experiment data;
s5: measuring data of air temperature of carbon dioxide inside the leaf chamber body (105), leaf temperature, air humidity inside the leaf chamber body (105) and ventilation flow rate through a photosynthesis meter experiment;
s6: the system comprises a leaf chamber body (105), a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, a blade temperature sensor and an environment temperature sensor, wherein the inside of the leaf chamber body (105) is respectively provided with the light quantum sensor, the air pressure sensor, the communication module, the environment humidity sensor, the blade temperature sensor and the environment temperature sensor, the input end of the air pressure sensor is connected with the output end of a micropump, the communication module is in signal connection with a user mobile terminal through a field information network (203), the light quantum sensor, the air pressure sensor, the communication module, the environment humidity sensor, the blade temperature sensor and the environment temperature sensor are connected with a dam data acquisition and analysis program (201), and the dam data acquisition and analysis program (201) is connected with a mariaDB database (202);
s7: corresponding data in the leaf chamber body (105) are collected through a light quantum sensor, an air pressure sensor, a communication module, an environment humidity sensor, an environment temperature sensor and a blade temperature sensor, then uploaded to the inside of a Dams data collection analysis program (201) through a field information carrying network (203), collected data are collected and sorted through the Dams data collection analysis program (201), and then transmitted to a mariaDB database (202) for storage.
2. The photosynthetic detector of claim 1, wherein: the inside bottom of the integrative screen of touch-control (200) is provided with the singlechip, the integrative screen of touch-control (200) with adopt Modbus communication between the singlechip, the multiple communication interface is supported simultaneously in the Modbus communication, realizes the integration, practices thrift the cost, and is nimble multi-purpose.
3. The photosynthetic detector of claim 1, wherein: the dam data acquisition and analysis program (201) is respectively in signal connection with the mariDB database (202), the embedded computer IotGW (205) and the sensor interface module IotNode (207) through the field information carrying network (203), so that the embedded computer IotGW (205) and the sensor interface module IotNode (207) are connected with the dam data acquisition and analysis program (201) through the field information carrying network (203).
4. The photosynthetic detector of claim 1, wherein: the tester main body (101) comprises a display screen (104), a host (102) and a support frame (103), wherein the host (102) is arranged at one end of the display screen (104), the upper end of the support frame (103) is fixedly connected with the lower end of the host (102), and the output end of the host (102) is electrically connected with the input end of the leaf chamber body (105).
5. The photosynthetic detector of claim 1, wherein: the inside of leaf room body (105) has set gradually air temperature sensor (209), blade temperature sensor (210), leaf room humidity transducer (211) and gas flow sensor (212), air temperature sensor (209), blade temperature sensor (210), leaf room humidity transducer (211) and gas flow sensor (212) all with the inside fixed connection of leaf room body (105), the inside of leaf room body (105) is provided with the laboratory plant, air temperature sensor (209), blade temperature sensor (210), leaf room humidity transducer (211) and gas flow sensor (212) are respectively CO2 infrared analysis appearance, flowmeter, temperature and humidity sensor and flow regulator are corresponding.
6. The photosynthetic detector of claim 1, wherein: the output end of the flow regulator is respectively electrically connected with the electromagnetic valve and the input end of the micropump, and then the electromagnetic valve and the micropump are controlled to be opened and closed through the flow regulator, so that the accuracy of data measurement is facilitated during experiments.
7. The photosynthetic detector of claim 1, wherein: the sensor interface module IotNode (207) is connected with the leaf chamber body (105), the air temperature sensor (209), the blade temperature sensor (210), the leaf chamber humidity sensor (211) and the gas flow sensor (212) are electrically connected with the sensor interface module IotNode (207) and the embedded computer IotGW (205), relevant data collected inside the leaf chamber body (105) are uploaded to the embedded computer IotGW (205) through the air temperature sensor (209), the blade temperature sensor (210), the leaf chamber humidity sensor (211) and the gas flow sensor (212) to be collected and calculated, and then uploaded to the inside of the Dams data collection and analysis program (201) through the embedded computer IotNode (207), and are analyzed and calculated through the Dams data collection and analysis program (201), and then experimental data are uploaded to the mariaDB database (202), the dam data acquisition and analysis program (201) can call out experimental data stored in the mariaDB database (202) at any time, and the experimental data is compared and analyzed with the prior art, so that the experiment is more complete.
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