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Plant transpiration online monitor

A plant transpiration and monitor technology, applied in the field of plant transpiration detection, can solve the problems of complicated working process, wrong data recording, and low accuracy of calculation results, and achieve the effect of stable air intake rate, constant flow rate, and convenient data processing

Pending Publication Date: 2018-10-02
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is usually necessary to manually record the test results regularly, and then calculate the transpiration rate of the plant based on multiple results. The accuracy of the calculation results is affected by the frequency of the recorded data. The longer the recording time interval, the lower the accuracy of the calculation results. In addition, the manual recording method may cause data recording errors, and the work process is complicated

Method used

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  • Plant transpiration online monitor
  • Plant transpiration online monitor
  • Plant transpiration online monitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A plant transpiration online monitor, integrated figure 1 and figure 2 , including a development board 1, components 2, an air chamber 3, a leaf chamber 4 and a housing 6, the housing 6 is composed of a box body 61 and a box cover 62 that are closed together, and the box body 61 and the box cover 62 can be fixed by fasteners Detachable fixed connection.

[0057] The development board 1 includes a first PCB board 11 and a second PCB board 12, the first PCB board 11 is fixedly connected to the bottom surface inside the box body 61, and the components 2 include an air pump 21, which is fixedly connected to the first PCB board 11, respectively. The solenoid valve 22 and the temperature and humidity sensor arranged inside the device chamber 3 , the gas chamber 3 is fixedly connected with the first PCB board 11 . The air chamber 3 communicates with the air pump 21 and the external atmosphere through a rubber hose (not shown in the figure), the air pump 21 communicates with...

Embodiment 2

[0076] The detection method of plant transpiration rate adopts the mobile online transpiration photosynthetic instrument in embodiment 1, combines Figure 4 , including the following steps:

[0077] S1: the server side controls the light sensor 23 and the air pump 21 to work;

[0078] S2: the server side controls the operation of the air pump 21;

[0079] S3: The solenoid valve 22 controls the opening of the first air inlet 611 and the closing of the second air inlet 411 in the first 20s;

[0080] S4: the air pump 21 sucks the external air into the air chamber 3;

[0081] S5: the temperature and humidity sensor detects the temperature and humidity in the air chamber 3;

[0082] S6: 80s later, the solenoid valve 22 controls the second air inlet 411 to open, and the first air inlet 611 to close;

[0083] S7: the air pump 21 sucks the air in the leaf chamber 4 into the air chamber 3;

[0084] S8: the sensor detects the temperature and humidity of the blade;

[0085] S9: dat...

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Abstract

The invention discloses a plant transpiration online monitor which comprises an air chamber, a development board, components, a leaf chamber and a shell. The development board is fixedly connected inside the shell, the components include an electromagnetic valve, an air pump, a temperature-humidity sensor arranged inside the air chamber and an illumination sensor fixedly connected on the outer surface of the shell, and the electromagnetic valve, the air pump and the air chamber are fixedly connected with the development board; the air chamber is communicated with the air pump and outside air through a pipeline, the air pump is communicated with the electromagnetic valve through a pipeline, the electromagnetic valve is communicated with the leaf chamber and the outside air through a pipeline, the temperature-humidity sensor is used for detecting humidity and temperature of air passing the air chamber, and a wifi module is integrated on the development board, is in communication connection with a server side and is used for sending data detected by the temperature-humidity sensor and the illumination sensor to the server side for analysis. The plant transpiration online monitor has the advantages of being capable of improving accuracy of plant transpiration rate detection, real-time in monitoring and simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of plant transpiration detection, in particular to an online plant transpiration monitor. Background technique [0002] Crop evapotranspiration includes plant evapotranspiration and inter-tree evaporation. Plant transpiration refers to the process in which crops inhale water from the soil by roots, vaporize through leaf stomata, and diffuse into the atmosphere driven by the water potential difference in the leaf-air system. [0003] The existing detection process needs to collect the water vapor generated by plant body transpiration, and then calculate it. The existing methods for calculating crop evapotranspiration are divided into two types, one is to directly calculate the crop evapotranspiration, and the other is to directly calculate the crop evapotranspiration. It is to calculate the reference crop evapotranspiration first, and then calculate the actual crop evapotranspiration. [0004] It is usually...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0098
Inventor 徐践吴晨楠刘菁赵华飞杨育斌
Owner BEIJING UNIV OF AGRI