Crop disease leaf chlorophyll content determination device

Abstract

The invention belongs to the technical field of crop observation, and discloses a crop disease leaf chlorophyll content determination device which comprises a satellite remote sensing module, a server module, a remote sensing image processing module, a crop disease identification module, a spectrum detection module, a chlorophyll content evaluation module and a main control module; the crop disease identification module is used for detecting and identifying disease levels of crops; the spectrum detection module is used for carrying out spectrum detection on crop leaves in a detection area by using a ground spectrograph and inputting the obtained leaf spectrum into the chlorophyll content estimation module; and the chlorophyll content evaluation module estimates the chlorophyll content of the leaf spectrum. The remote sensing technology is introduced into estimation of the chlorophyll content of the crop leaves to obtain the chlorophyll content of the crop leaves, the remote sensing measurement precision of crop diseases can be effectively improved, the problem that the chlorophyll detection result precision of diseased crops is low is solved, rapid recognition and statistical analysis of the crop diseases can be achieved, and the disease prevention and control efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of crop observation, and in particular relates to a device for measuring chlorophyll content of crop diseased leaves. Background technique [0002] At present: During the growth and development of crops, the leaves will gradually change from green to yellow due to the lack of nitrogen fertilizer, which is a gradual process. At present, SPAD-502 chlorophyll meter and plant nitrogen balance index measuring instrument (DUALEX SCIENTIFIC) are currently the most widely used measuring instruments for relative chlorophyll content of plant leaves in the world. Among them, the SPAD-502 chlorophyll meter determines the relative amount of chlorophyll in the leaves by measuring the optical concentration difference of the leaves at two wavelengths (650nm and 940nm); DUALEX measures the chlorophyll index and nitrogen balance index of the leaves through 5 LED light sources, which can be more accurate To measure this chang...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing chlorophyll content measurement method has a large change in the measurement results for the leaves infected with the disease, and the measurement accuracy is low

[0006] (2) The existing chlorophyll content determination methods cannot effectively measure the chlorophyll content of a wide range of crops

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