Full-spectrum transmission plant biochemical parameter nondestructive detection device and method

Abstract

The invention discloses a full-spectrum transmission plant biochemical parameter nondestructive detection device and a full-spectrum transmission plant biochemical parameter nondestructive detection method, which are used for solving the technical problems of low model applicability, poor anti-jamming capacity, low detection accuracy, less detected parameters and the like in the conventional spectrum nondestructive detection method. The full-spectrum transmission measurement principle is adopted and a plurality of parameters are simultaneously measured in high accuracy; the time-divided double optical path reference measurement principle is adopted to ensure the accuracy of transmittance spectrum signals; the integrated transmission fixture and program controlled adjustable voltage-stabilizing drive light source circuit makes the measurement principle realized in plant leaf transmittance spectrum measurement so as to form the miniature and portable plant biochemical parameter nondestructive detection device; and in a prediction model of the device, an improved expansion multiple scattering correction method is adopted to correct basic lines of leaves due to scattering and optical path length difference due to different leaf thicknesses, the sensitivity of spectrum data to chemical substance concentration is improved, and the anti-jamming capacity of the model is improved.

Description

technical field [0001] The invention relates to a spectrum detection technology of plant leaf biochemical parameters, in particular to a device and method for full-spectrum transmission non-destructive detection of plant biochemical parameters. Background technique [0002] The non-destructive testing of biochemical parameters of plant leaves mainly refers to the content testing of photosynthetic pigments (chlorophyll, carotene, etc.), water, nitrogen and various nutritional elements of leaves. For a long time, people have expected to precisely control the growth process of plants to meet the needs of the development of precision agriculture. The current deterioration of the living environment makes this demand more urgent. The traditional chemical detection method requires a series of processing of the sample to be tested, which is not only time-consuming, labor-intensive, but also not real-time. [0003] Visible-near-infrared spectroscopy detection technology does not req...

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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a full-spectrum transmission non-destructive detection method and device for plant biochemical parameters, which is used to solve the problems of low model applicability, poor anti-interference ability and low detection accuracy in current spectral non-destructive detection methods. And technical problems such as fewer detection parameters

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