Method and system for detecting genuine nature of ginseng based on terahertz time-domain spectroscopy technology
A technology of terahertz time domain and spectral technology, which is applied in the field of ginseng road geophysical detection, can solve the problems of cumbersome operation, limited promotion, time-consuming and other problems, and achieve the effect of not easy over-fitting, good generalization performance and high accuracy rate
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[0030] Example 1
[0031] In one or more embodiments, a method for detecting the authenticity of ginseng based on terahertz time-domain spectroscopy technology is disclosed, refer to figure 2 , including the following process:
[0032] (1) Obtain the ginseng sample to be tested;
[0033] Specifically, to prepare a sample for terahertz spectroscopic measurement, ginseng was ground, sieved, and compressed into a surface-parallel flake with a tablet machine. Before testing, the samples were dried to exclude the influence of water in the samples on the experimental results.
[0034] (2) Measure the terahertz time-domain signal and the terahertz spectrum of the ginseng sample, and calculate the extinction coefficient of the sample;
[0035] Terahertz (THz) waves are electromagnetic radiation with frequencies between microwaves and light waves (0.1-10THz), and the frequency band covers the vibrational and rotational energy levels of many macromolecules. The difference is so sen...
Example Embodiment
[0062] Embodiment 2
[0063] In one or more embodiments, a ginseng authenticity detection system based on terahertz time-domain spectroscopy technology is disclosed, including:
[0064] The sample acquisition module is used to acquire the ginseng samples to be tested;
[0065] a data processing module for measuring the terahertz time domain signal and the terahertz spectrum of the ginseng sample, and calculating the extinction coefficient of the sample;
[0066] The data prediction module is used for inputting the extinction coefficient into the trained ginseng origin prediction model, and outputting origin information of the ginseng samples to be detected.
[0067] It should be noted here that the specific implementation of the above modules is implemented by the method disclosed in the first embodiment, but is not limited to the content disclosed in the first embodiment.
[0068] The description of each embodiment in the foregoing embodiments has its own emphasis. For the ...
Example Embodiment
[0070] Embodiment 3
[0071] This embodiment also provides a terminal device, including: one or more processors, one or more memories, and one or more computer programs; wherein the processor is connected to the memory, and the one or more computer programs are Stored in the memory, when the electronic device runs, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in the first embodiment.
[0072] It should be understood that, in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general-purpose processors, digital signal processors DSP, application-specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processo...
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