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Advanced plant biochemical parameter non-contact monitoring device

A technology for higher plants and monitoring devices, applied in color/spectral characteristic measurement, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as unattended, non-destructive testing, etc. complexity, enhance the useful signal, reduce the effect of loss

Inactive Publication Date: 2011-04-06
BEIHANG UNIV
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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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  • Advanced plant biochemical parameter non-contact monitoring device
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  • Advanced plant biochemical parameter non-contact monitoring device

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Embodiment Construction

[0044] The core idea of ​​the present invention is: through the design of the integrated probe and the automatic control process, the unattended and non-contact spectral measurement of the biochemical parameters of higher plants is realized, and the sampling probe is controlled by a stepping motor between the standard plate and the measured Automatic conversion between time, dual optical path spectrum measurement, improve measurement accuracy; through the program-controlled light source drive current circuit to solve the problem of detector saturation and the difficulty of extracting weak signals.

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0046] In the following, the implementation of the plant biochemical parameter real-time monitoring device of the present invention will be d...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/31G01N21/27G05B19/04
Inventor 张广军张倩暄李庆波
Owner BEIHANG UNIV
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