Multi-sensor technology-based grape water stress diagnosis method and system therefor

Abstract

The invention discloses a multi-sensor technology-based grape water stress diagnosis method and a system therefor. The multi-sensor technology-based grape water stress diagnosis method comprises the following steps of 1, acquiring a canopy coverage rate value, a canopy temperature characteristic value and a canopy photosynthetically active radiation value of a grape sample for modeling, 2, building a detection model by the canopy coverage rate value, the canopy temperature characteristic value and the canopy photosynthetically active radiation value as input variables, and a canopy water stress level as an output variable, and 3, by the step 1, acquiring a canopy coverage rate value, a canopy temperature characteristic value and a canopy photosynthetically active radiation value of a grape sample needing to be detected, and substituting the acquired canopy coverage rate value, the canopy temperature characteristic value and the canopy photosynthetically active radiation value into the detection model, and calculating a canopy water stress level of the detected grape sample. Through utilization of the multispectral imaging technology, the thermal infrared imaging technology and the multiple informative data fusion technology, the multi-sensor technology-based grape water stress diagnosis method realizes fast, early-stage and real-time detection of a grape water stress level and improves a detection precision.

Description

technical field [0001] The invention relates to the detection field of crop water stress diagnosis, in particular to a grape water stress diagnosis method and system based on multi-sensor technology. Background technique [0002] The impact of water on grape yield and its own growth is profound. Water stress first affects the physiological metabolic process of the plant, and finally manifests as an impact on growth and development. The specific manifestations are: water shortage, the development of grape tissues and organs will be hindered, and photosynthesis will be weakened. The effects of water stress on the morphological indicators and microstructure of fruit tree leaves and roots, leaf stomata behavior, photosynthesis, light inhibition, enzyme activity, endogenous hormone changes and other physiological and biochemical aspects have been reported. Among them, the effects on photosynthesis particularly prominent. Water stress causes physiological obstacles to the growth...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned techniques for measuring crop water stress all have a common problem, that is, the detection accuracy is not high

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