Method and system for remote wireless monitoring of plant chlorophyll fluorescence

Abstract

The invention provides a system for remotely and wirelessly monitoring plant chlorophyll fluorescence. The system comprises a modulation fluorescence instrument used for measuring plant chlorophyll fluorescence parameters, a data acquisition unit used for acquiring data monitored by the modulation fluorescence instrument, a wireless communication module used for sending the data to a monitoring center, a communication antenna used for sending the data through a wireless communication network, a solar energy panel used for acquiring solar energy and converting the solar energy to electrical energy, a storage battery pack used for storing the electrical energy which is generated by the solar panel and used as standby electrical energy so that the electric power supply of the system is supplemented when solar energy power generation is insufficient, a photovoltaic controller used for stabilizing a voltage of the solar energy power generation and enabling the solar energy panel to charge the storage battery pack, and a power supply panel used for providing a needed electric power supply to the modulation fluorescence instrument, the data acquisition unit and the wireless communication module. Correspondingly, the invention also provides a method for remotely and wirelessly monitoring the plant chlorophyll fluorescence. According to the method and system provided by the invention, the ecological monitoring of more parameters can be chronically and continuously performed in wild fields, and the wireless remote data transmission is simultaneously performed.

Description

technical field [0001] The invention relates to the technical field of plant chlorophyll fluorescence measurement, in particular to a method and system for remote wireless monitoring of plant chlorophyll fluorescence. Background technique [0002] Photosynthesis is the core metabolic process of plants and the basis of energy flow and material cycle in the whole ecosystem. Measuring plant photosynthesis in the field is a hotspot in the study of plant physiology and ecology. The common method is to carry instruments to the field to manually measure the diurnal changes of plant photosynthesis, which is difficult to achieve long-term continuous monitoring. [0003] The measurement of plant photosynthesis mainly includes several techniques such as gas exchange, modulation of chlorophyll fluorescence, differential absorption and photosynthetic oxygen evolution. Currently only gas exchange and modulated chlorophyll fluorescence techniques are suitable for field measurements. Amo...

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Problems solved by technology

The continuous monitoring fluorometer MONITORING-PAM launched by German WALZ company can continuously monitor four fluorescence indicators of F, Fm', Y(II) and rETR (Porcar-Castell A, Pfündel E, Korhonen JFJ, Juurola E.A new monitoring PAM fluorometer( MONI-PAM) to study the short-and long-term acclimation of photosystem II in field conditions Photosynthesis Research, 2008, 96(2): 173-179.), but because the software does not have the ability to re-measure Fo every day during the continuous monitoring process and Fm functions, so parameters such as qP, qL, qN, NPQ, Y(NPQ), Y(NO) cannot be monitored for a long time

At the same time, the measurement data cannot be transmitted remotely and wirelessly, and can only be downloaded manually

[0018] In the Chinese invention patent application with the application publication number CN 101865846A, a plant chlorophyll fluorescence online monitoring device is mentioned, which can monitor the photosynthesis of plants in a large area, but the light source system used for the measurement will block the direct sunlight. Therefore, it is only suitable for the measurement in the greenhouse, not suitable for long-term ecological monitoring in the field, and it cannot transmit data wirelessly and remotely

[0019] Ji Jianwei et al. (Ji Jianwei, Xie Fei, H

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