A portable online detection device for grain quality based on near-infrared spectroscopy
A technology of near-infrared spectroscopy and detection devices, which is applied in the field of portable grain quality online detection devices, can solve problems such as fast and efficient, real-time and accurate acquisition, time-consuming and labor-intensive problems, and achieve the goal of reducing human resource consumption, simplifying complicated processes, and realizing acquisition. Effect
Active Publication Date: 2021-11-02
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology
The traditional method of obtaining grain quality indicators is to use chemical methods to quantitatively analyze the quality content of grains indoors. These methods usually require sample preparation and testing, which is time-consuming and laborious. It is difficult to meet the requirements of modern agriculture for fast, efficient, real-time and accurate acquisition of grain quality indicators.
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[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] Such as Figures 1 to 4 As shown, a portable online detection device for grain quality based on near-infrared spectroscopy, which includes a light-emitting module, a spectrum acquisition module and a control circuit module. The light-emitting module includes a near-infrared LED light source 2 and a holographic beam shaping diffusion film 8, the spectrum acquisition module includes a photodetector 4 and a Fresnel lens 11, and the control circuit module includes a micro-control unit, a light source drive unit, and a spectral Acquisition unit, voice control and output unit, GPS / Beidou positioning unit and wireless communication unit. The spectrum acquisition module sends the collected signal to the optical control circuit module, and the control circuit module sends the collected data information to the receiving and displaying device by...
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Abstract
The invention discloses a portable online detection device for grain quality based on near-infrared spectrum, which includes a light-emitting module, a spectrum acquisition module and a control circuit module. The light-emitting module includes a near-infrared LED light source and a holographic beam shaping diffusion film. The near-infrared The infrared LED light source is installed around the top of the lamp tube, and a detection window is opened at the bottom of the lamp tube. The holographic beam shaping diffusion film is arranged inside or below the detection window. The spectrum acquisition module includes a photodetector and a Fresnel lens. The Fresnel lens is installed directly above the detection window, the photodetector is installed above the Fresnel lens, and the photodetector is connected to the control circuit module, and the control circuit module communicates wirelessly or by wire Send the collected data information to the receiving display device. The invention realizes the real-time acquisition of grain quality information and geographic location information during the operation of the agricultural machine, and the drawing of the grain quality field distribution map.
Description
technical field [0001] The invention relates to the field of precision agriculture, in particular to a portable online detection device for grain quality based on near-infrared spectroscopy. Background technique [0002] Grain quality indicators are important reference information for harvesting, transportation and farmland management. The moisture content of grain is closely related to its yield, and the correct estimation of grain yield in the field provides important reference information for grain harvesting and transportation. The protein content of grain is closely related to management measures such as fertilization in farmland, and the field distribution map of protein content in grain provides important reference information for farmland management decision-making. The traditional method of obtaining grain quality indicators is to use chemical methods to quantitatively analyze the quality content of grains indoors. These methods usually require sample preparation a...
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IPC IPC(8): G01N21/3563G01N21/359G01S19/42
CPCG01N21/3563G01N21/359G01S19/42
Inventor 倪军刘一鸣蒋小平曹卫星朱艳田永超
Owner NANJING AGRICULTURAL UNIVERSITY