Method for transferring near infrared model of organic fertilizer product

A transfer method, near-infrared technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of not having an effective method

Inactive Publication Date: 2010-09-15
CHINA AGRI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, at present, there is no effective method for the transfer of the near-infrared spectroscopy analysis model of organic fertilizers.

Method used

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  • Method for transferring near infrared model of organic fertilizer product
  • Method for transferring near infrared model of organic fertilizer product
  • Method for transferring near infrared model of organic fertilizer product

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] The present invention comprises the following steps:

[0032] 1) Select and set two near-infrared spectrometers as the master instrument and slave instrument for spectral analysis of organic fertilizer samples, and match the data format of the spectral arrays of the organic fertilizer samples obtained from the master instrument and slave instruments.

[0033]Because different near-infrared spectrometers have different parameter settings such as resolution, the format of the acquired spectral data does not match. In this embodiment, when performing spectral data matching, the spectral data format of the slave instrument is used as the standard, and the spectral data format of the master instrument is transferred to the slave instrument. The spectral data format of the instrument is matched so that the abscissa of the spectral array is consistent...

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Abstract

The invention relates to a method for transferring a near infrared model of an organic fertilizer product. The method is characterized by comprising the following steps of: (1) selecting and setting main instruments and slave instruments and matching spectroscopic data between the two kinds of instruments; (2) matching spectrum arrays of the front main instrument and the rear main instrument and a sample chemical truth-value concentration array by using the spectroscopic data, establishing a leave-one-out full-interactive verification near infrared model based on a partial least squares method and comparing the predication result difference; (3) selecting a plurality of respective samples in correction set samples to form a standard sample set; (4) respectively calculating predication value concentration arrays of the standard sample sets of the main instruments and the slave instruments by using the near infrared correction module established by using the main instruments and carrying out least square fitting; (5) calculating a slave instrument verification set sample concentration array by using main instrument near infrared correction models and carrying out the correction by using a least square fitting relationship formula to obtain a slave instrument verification set sample concentration array after the model is transferred; and (6) estimating and analyzing a predication effect after the main instrument near infrared correction models are transferred.

Description

technical field [0001] The invention relates to a model transfer method, in particular to a near-infrared model transfer method for organic fertilizer products. Background technique [0002] In recent years, near-infrared spectral analysis technology has been widely used in various industries due to its advantages of high efficiency, non-destructive, non-polluting and simultaneous determination and analysis of multiple components or properties. Its application in the determination and analysis of organic fertilizer technical indicators Research began in the 1990s, and showed good application effects. However, near-infrared spectroscopy is an indirect analysis method. When establishing a calibration model, it is often necessary to measure and analyze the chemical values ​​or basic property data of a large number of samples as the basis for establishing the calibration model. Therefore, higher requirements are placed on the dynamic adaptability of the established model. It n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G06F17/50G01N21/25
Inventor 黄光群韩鲁佳刘贤王晓燕
Owner CHINA AGRI UNIV
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