Advanced plant biochemical parameter non-contact monitoring device

Abstract

The invention discloses an advanced plant biochemical parameter non-contact monitoring device which is used for carrying out non-destructive automatic real-time detection on biochemical parameters of chlorophyll, water, nitrogen, and the like in plant canopy level in an unattended environment. A plant is detected by a visible / near-infrared spectral analysis technology, and the fine control can berealized; the unattended non-contact sampling is realized and the power consumption of the device is reduced by the integral design of a special light source and a sampling probe; a sampling device is separated from a host machine and the remote measurement is realized by an optic fiber technology. The invention realizes that the light source emits light with different illumination intensities when a reference signal and a blade signal are measured, always leads a detector to be capable of responding in high sensitivity, solves the problem of limited detection range of a photoelectric detector, improves the signal-to-noise radio of an instrument and ensures the measurement accuracy of the instrument by an adjustable constant current drive circuit.

Description

technical field [0001] The invention belongs to the field of automatic monitoring of closed environments, and relates to a non-contact monitoring device for biochemical parameters of higher plants. Background technique [0002] The nondestructive monitoring technology of plant biochemical parameters is mainly used in the detection of plant growth and yield estimation in precision agricultural management or scientific experimental cultivation technology. At present, there are mainly two methods for non-destructive monitoring of plant parameters and yield estimation. One is indirect monitoring, which reflects the growth of the plant itself by detecting certain nutrient elements and water content in the plant growth environment (soil or liquid culture solution). The other is direct monitoring, through various devices and instruments to detect the content of biochemical parameters such as chlorophyll, nitrogen, and water in the plant itself to reflect the growth of the plant and...

AI Technical Summary

Problems solved by technology

[0006] None of the currently disclosed patents and articles are related to non-contact, automatic detection of spectrum-based biochemical parameter detection devices, but in some special cases, automatic unattended and non-destructive detection of plant biochemical parameters is required, such as for aerospace affected Monitoring of plant biochemical parameters in the plant incubator in the ecological life support system, or in the plant science experiment incubator

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