Method and system for sharing calibration models of multiple micro-spectrometers

Abstract

The present invention provides a method and system for sharing calibration models for multiple micro-spectrometers, including: constructing a calibration sample set; obtaining a first spectrum corresponding to each calibration sample acquired by a standard spectrometer; constructing a target property detection model using chemometric methods based on the first spectrum corresponding to each calibration sample and a reference value of a target property indicator corresponding to each calibration sample; selecting a portion of the calibration samples from the calibration sample set to construct a spectrum transfer sample set; and performing standardization processing on each micro-spectrometer. This solution enables the sharing of calibration models for multiple micro-spectrometers and enables efficient deployment of multiple micro-spectrometers.

Description

Technical Field

[0001] The present invention relates to the technical field of spectrometers, and in particular to a method and system for sharing calibration models of multiple miniature spectrometers. Background Art

[0002] Spectroscopy has proven to be a viable method for rapidly and accurately detecting multiple properties of a substance simultaneously. In recent years, advances in microfabrication technology have enabled the detection accuracy of miniature spectrometers to nearly match that of high-performance laboratory spectrometers.

[0003] The emergence of micro-spectrometers has significantly reduced the cost of testing material properties. Their portability, coupled with their small size, also makes on-site testing possible. However, the small size and low cost of these instruments require significantly simplified components such as the spectrometer, calibration unit, and cooling system. This results in poor stability within a single micro-spectrometer and poor consistency across different instruments.

[0004] In practical applications, the stability of micro-spectrometers and the consistency between different micro-spectrometers are poor. If a calibration model is developed based on a micro-spectrometer, the calibration model will fail as the performance of a single device changes and when it is used between different micro-spectrometers. This greatly limits the application of portable and low-cost micro-spectrometers in actual production and prevents the efficient deployment of multiple micro-spectrometers. Summary of the Invention

[0005] The present invention provides a method and system for sharing calibration models of multiple miniature spectrometers, which are used to solve the defects of the prior art in that the sharing of calibration models of multiple miniature spectrometers is poorly feasible and cannot achieve efficient deployment of multiple miniature spectrometers. The method and system realize the sharing of calibration models of multiple miniature spectrometers and the efficient deployment of multiple miniature spectrometers.

[0006] The present invention provides a method for sharing calibration models of multiple micro-spectrometers, which is applied to a micro-spectrometer system, wherein the micro-spectrometer system includes multiple micro-spectrometers and the standard spectrometer; the method includes: constructing a calibration sample set, wherein the calibration sample set includes multiple calibration samples and a target property index reference value corresponding to each calibration sample; obtaining a first spectrum corresponding to each calibration sample collected by the standard spectrometer; constructing the target property detection model by a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample; selecting some calibration samples from the calibration sample set to construct a spectrum transfer sample set; performing standardization processing on each micro-spectrometer to realize sharing of the calibration models of the multiple micro-spectrometers; wherein the standardization processing includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set collected by the micro-spectrometer; and determining the spectrum transfer path corresponding to the micro-spectrometer according to a spectrum transfer algorithm based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set.

[0007] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, after performing standardization processing on each micro-spectrometer to realize sharing of the calibration models of the multiple micro-spectrometers, the method further includes: obtaining an initial spectrum of the sample to be tested collected by the micro-spectrometer; spectrally transferring the initial spectrum of the sample to be tested according to a spectrum transfer path corresponding to the micro-spectrometer to obtain a standardized spectrum of the sample to be tested; wherein the spectrum transfer path corresponding to the micro-spectrometer is a transfer path required for transferring the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer; inputting the standardized spectrum of the sample to be tested into a target property calibration model to obtain a target property index value corresponding to the sample to be tested output by the target property calibration model; wherein the target property calibration model is constructed based on the standard spectrometer.

[0008] According to a method for sharing calibration models of multiple miniature spectrometers provided by the present invention, after constructing a target property detection model by a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample, the method includes: constructing a first verification sample set, the first verification sample set including multiple first verification samples, each first verification sample corresponding to the spectrum of the standard spectrometer, and the target property index reference value corresponding to each first verification sample; and verifying the target property detection model based on the first verification sample set.

[0009] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, after determining the spectral transfer path corresponding to the micro-spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set and according to the spectral transfer algorithm, the method further includes: constructing a second verification sample set, the second verification sample set including multiple second verification samples, each second verification sample corresponding to the spectrum of the standard spectrometer, and each second verification sample corresponding to the spectrum of the micro-spectrometer; and verifying the spectral transfer path corresponding to the micro-spectrometer based on the second verification sample set.

[0010] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, the spectral transfer path corresponding to the micro-spectrometer is determined according to a spectral transfer algorithm based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set, including: based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set, according to the spectral transfer algorithm, calculating the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer; based on the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer, determining the spectral transfer path corresponding to the micro-spectrometer.

[0011] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, the method also includes: obtaining multiple samples to be tested, the number of the multiple samples to be tested being consistent with the number of the multiple micro-spectrometers; collecting the multiple samples to be tested through the multiple micro-spectrometers to obtain an initial spectrum corresponding to each sample to be tested; spectrally transferring the initial spectrum corresponding to each sample to be tested based on the spectrum transfer path corresponding to each micro-spectrometer to obtain a standardized spectrum of each sample to be tested; inputting the standardized spectrum of each sample to be tested into the target property calibration model to obtain a target property index value for each sample to be tested output by the target property calibration model.

[0012] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, the multiple samples to be tested are obtained by preparing different positions of a large sample or a complex sample.

[0013] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, the multiple micro-spectrometers can be set at different processing positions of an industrial assembly line.

[0014] According to a method for sharing calibration models of multiple micro-spectrometers provided by the present invention, the multiple micro-spectrometers are used to detect samples to be tested at different stages of a synthesis process or a processing process.

[0015] The present invention also provides a device for sharing calibration models of multiple micro-spectrometers, including a first construction module for constructing a calibration sample set, the calibration sample set including multiple calibration samples and a target property index reference value corresponding to each calibration sample; a first acquisition module for obtaining a first spectrum corresponding to each calibration sample acquired by the standard spectrometer; a second construction module for constructing the target property detection model through a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample; a selection module for selecting some calibration samples from the calibration sample set to construct a spectrum transfer sample set; a processing module for performing standardization processing on each micro-spectrometer to realize the sharing of calibration models of the multiple micro-spectrometers; wherein the standardization processing includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set acquired by the micro-spectrometer; and determining the spectrum transfer path corresponding to the micro-spectrometer according to a spectrum transfer algorithm based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set.

[0016] The present invention also provides a micro-spectrometer system, comprising a plurality of micro-spectrometers, a standard spectrometer, and a calibration model sharing device for the plurality of micro-spectrometers.

[0017] The present invention also provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for sharing calibration models of multiple micro-spectrometers as described above is implemented.

[0018] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for sharing calibration models of multiple micro-spectrometers as described in any one of the above is implemented.

[0019] The present invention also provides a computer program product, comprising a computer program, which, when executed by a processor, implements any of the above-described methods for sharing calibration models of multiple micro-spectrometers.

[0020] The present invention provides a method and system for sharing calibration models for multiple micro-spectrometers. This involves constructing a calibration sample set; obtaining a first spectrum corresponding to each calibration sample, acquired by a standard spectrometer; constructing a target property detection model using chemometric methods based on the first spectrum corresponding to each calibration sample and a reference value of a target property indicator corresponding to each calibration sample; selecting a portion of the calibration samples from the calibration sample set to construct a spectrum transfer sample set; and performing standardization processing on each micro-spectrometer. This solution enables the sharing of calibration models for multiple micro-spectrometers, enabling efficient deployment of multiple micro-spectrometers and supporting multi-scenario applications of micro-spectrometer systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of the micro-spectrometer system provided by the present invention.

[0023] Figure 2 This is one of the flow charts of the method for sharing calibration models of multiple miniature spectrometers provided by the present invention.

[0024] Figure 3 This is the second flow chart of the method for sharing calibration models of multiple miniature spectrometers provided by the present invention.

[0025] Figure 4 It is a structural schematic diagram of a device for sharing calibration models of multiple miniature spectrometers provided by the present invention.

[0026] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0028] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. Figures 1 to 3 The present invention describes a method for sharing calibration models of multiple micro-spectrometers.

[0029] The method for sharing calibration models of multiple micro-spectrometers provided in this embodiment is applied to a micro-spectrometer system. Figure 1 The schematic diagram of the structure of the micro-spectrometer system provided by the present invention is as follows: Figure 1 As shown, the micro-spectrometer system includes multiple micro-spectrometers and a standard spectrometer.

[0030] In practical applications, the execution subject of the method for sharing calibration models of multiple micro-spectrometers can be a multiple micro-spectrometer calibration model sharing device. There are many ways to implement the multiple micro-spectrometer calibration model sharing device. For example, it can be implemented through a computer program, such as application software, or a chip. It can also be implemented as a medium storing relevant computer programs, such as a USB flash drive or cloud disk. Alternatively, it can be implemented through a physical device that integrates or installs relevant computer programs, such as a server.

[0031] Figure 2 This is one of the flow charts of the method for sharing calibration models of multiple micro-spectrometers provided by the present invention, such as Figure 2 As shown, the method includes steps 101 to 105.

[0032] Step 101: Construct a calibration sample set, where the calibration sample set includes multiple calibration samples and a target property index reference value corresponding to each calibration sample.

[0033] Step 102: Acquire a first spectrum corresponding to each calibration sample acquired by a standard spectrometer.

[0034] Specifically, multiple representative samples of the target substance are collected and pre-processed to obtain multiple calibration samples. A reference value of the target property index corresponding to each calibration sample is measured to construct a calibration sample set. Furthermore, a first spectrum corresponding to each calibration sample in the calibration sample set is collected using a standard spectrometer.

[0035] Step 103: Based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample, a target property detection model is constructed by a chemometric method.

[0036] Among them, the target property calibration model is a spectral analysis model. According to the first spectrum corresponding to each calibration sample collected by the standard spectrometer, the true value of the target property index corresponding to each calibration sample can be output. In practical applications, the accuracy of the target property detection model can be verified by calculating the error between the true value of the target property index corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample. If the error is large, the parameters of the target property detection model can be adjusted until the error meets the requirements, that is, the required target property detection model is obtained. It can be understood that in the constructed target property detection model, the error between the true value of the target property index corresponding to each calibration sample input and the reference value of the target property index corresponding to each calibration sample is within a certain range.

[0037] Step 104: Select some calibration samples from the calibration sample set to construct a spectrum transfer sample set.

[0038] In practical applications, a portion of the calibration samples can be selected from the calibration sample set based on the first spectrum corresponding to each calibration sample in the calibration sample set and the differences in properties of the multiple calibration samples. The present invention does not specifically limit the method for selecting the portion of the calibration samples; for example, the selection method includes, but is not limited to, the concentration gradient method and the spectral distance method.

[0039] Step 105: Perform a standardization process on each micro-spectrometer to enable shared calibration models across multiple micro-spectrometers. The standardization process includes obtaining a second spectrum corresponding to each calibration sample in a spectrum transfer sample set collected by the micro-spectrometer. Based on the first and second spectra corresponding to each calibration sample in the spectrum transfer sample set, a spectrum transfer path corresponding to the micro-spectrometer is determined using a spectrum transfer algorithm.

[0040] In conjunction with the above description, the spectral transfer path corresponding to the micro-spectrometer is the transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer. Therefore, determining the spectral transfer path corresponding to the micro-spectrometer is to determine the corresponding relationship between the spectrum corresponding to the micro-spectrometer and the spectrum corresponding to the standard spectrometer.

[0041] Specifically, the first spectrum and the second spectrum corresponding to each calibration sample are collected by the standard spectrometer and the micro spectrometer, respectively. Therefore, in this embodiment, based on the first spectrum and the second spectrum corresponding to each calibration sample, the spectrum transfer path corresponding to the micro spectrometer is determined according to the spectrum transfer algorithm.

[0042] As an example, for the method of determining the spectral transfer path corresponding to the micro-spectrometer, in one example, the above-mentioned method of determining the spectral transfer path corresponding to the micro-spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set according to the spectral transfer algorithm includes: based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set, according to the spectral transfer algorithm, calculating the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer; based on the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer, determining the spectral transfer path corresponding to the micro-spectrometer.

[0043] It should be noted that the present invention does not specifically limit the spectrum transfer algorithm, and the spectrum transfer algorithm includes but is not limited to the spectrum difference correction method, the direct normalization method and the slope-intercept correction method.

[0044] In practical applications, multiple micro-spectrometers can be deployed as needed. On the one hand, the solution of the present invention allows calibration of multiple micro-spectrometers based on a standard spectrometer, saving the cost of material property testing. On the other hand, the solution of the present invention enables accurate calibration of multiple micro-spectrometers, improving the accuracy and reliability of material detection.

[0045] In this embodiment, a calibration sample set is constructed; a first spectrum corresponding to each calibration sample collected by a standard spectrometer is obtained; based on the first spectrum corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample, a target property detection model is constructed by a chemometric method; some calibration samples are selected from the calibration sample set to construct a spectrum transfer sample set; for each micro-spectrometer, standardization processing is performed to ensure accurate calibration of multiple micro-spectrometers, improve the stability of the micro-spectrometer and the consistency between different micro-spectrometers, realize the sharing of calibration models of multiple micro-spectrometers, enable efficient deployment of multiple micro-spectrometers, and provide support for multi-scenario applications of the micro-spectrometer system.

[0046] As an example, Figure 3 This is the second flow chart of the method for sharing calibration models of multiple micro-spectrometers provided by the present invention, such as Figure 3 As shown, after the above step 105 , the above method for sharing calibration models of multiple micro-spectrometers further includes: step 201 , step 202 and step 203 .

[0047] Step 201: Acquire an initial spectrum of a sample to be tested collected by a micro-spectrometer.

[0048] Micro-spectrometers are core components of spectral measurement systems. They are essential devices that apply optical, electronic, and computer technologies to analyze and measure the composition and structure of materials. Their modularity and high-speed acquisition capabilities have led to widespread application in system integration and field testing. Combined with light sources, optical fibers, and measurement accessories, they can be configured into various optical measurement systems. Their compact size allows for flexible configuration of spectral systems, resulting in widespread applications in environmental monitoring, industrial control, chemical analysis, food quality testing, materials analysis, clinical testing, aerospace remote sensing, and scientific education.

[0049] In practical applications, micro-spectrometers can be used for transmission absorption measurement, reflection measurement, laser measurement, fluorescence measurement, oxygen content measurement, Raman spectroscopy measurement, laser-induced breakdown spectroscopy (LIBS) measurement, light-emitting diode (LED) measurement, etc.

[0050] Combined with specific application scenarios, the micro-spectrometer can quickly detect multiple properties of substances, such as material composition analysis. In this embodiment, the sample to be tested refers to a sample of the substance to be tested, and can be any portion selected from the substance to be tested. As an example, the micro-spectrometer can be used to detect the carbon and nitrogen content in soil. In this scenario, the sample to be tested is a sample of the soil to be tested. In actual applications, after obtaining the sample to be tested, the sample to be tested can be pre-processed, for example, to remove interfering substances, remove non-representative samples, etc.

[0051] In practical applications, a sample to be tested is placed in the path of incident light. The sample absorbs, reflects, or scatters the incident light. The micro-spectrometer collects the reflected light from the sample to determine its initial spectrum. It is understood that the initial spectrum of the sample to be tested can characterize its properties. Furthermore, the properties of the sample to be tested can be determined by analyzing its initial spectrum.

[0052] Step 202: Spectrally transfer the initial spectrum of the sample to be tested according to the spectrum transfer path corresponding to the micro-spectrometer to obtain a standardized spectrum of the sample to be tested.

[0053] The spectral transfer path corresponding to the micro-spectrometer is the transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer. The spectral transfer path corresponding to the micro-spectrometer represents the relationship between the spectrum corresponding to the micro-spectrometer and the spectrum corresponding to the standard spectrometer. As an example, the spectral transfer path includes the spectral transfer method and spectral transfer parameters. In practical applications, the spectral transfer path corresponding to the micro-spectrometer can be predetermined based on a spectral transfer algorithm.

[0054] In practical applications, multiple micro-spectrometers can be set up, and the multiple micro-spectrometers are calibrated by a standard spectrometer. Specifically, each micro-spectrometer corresponds to a spectral transfer path. For example, there are three micro-spectrometers, namely micro-spectrometer 1, micro-spectrometer 2, and micro-spectrometer 3. Micro-spectrometer 1 corresponds to spectral transfer path 1, micro-spectrometer 2 corresponds to spectral transfer path 2, and micro-spectrometer 3 corresponds to spectral transfer path 3. For example, according to the spectral transfer path 1 corresponding to micro-spectrometer 1, the initial spectrum 1 of the sample to be tested collected by micro-spectrometer 1 can be spectrally transferred to obtain the standardized spectrum 1 of the sample to be tested. For another example, according to the spectral transfer path 2 corresponding to micro-spectrometer 2, the initial spectrum 2 of the sample to be tested collected by micro-spectrometer 2 can be spectrally transferred to obtain the standardized spectrum 2 of the sample to be tested. It can be understood that, according to the spectral transfer path corresponding to the micro-spectrometer, the initial spectrum of the sample to be tested can be spectrally transferred to obtain the spectrum corresponding to the standard spectrometer, that is, the standardized spectrum of the sample to be tested.

[0055] It should be noted that when a new micro-spectrometer needs to be deployed, the spectral transfer path corresponding to the micro-spectrometer needs to be determined so that the initial spectrum of the sample to be tested collected by the micro-spectrometer can be subsequently spectrally transferred to obtain the standardized spectrum of the sample to be tested.

[0056] Furthermore, after obtaining the standardized spectrum of the sample to be tested, the standardized spectrum of the sample to be tested can be analyzed based on a standard spectrometer to achieve detection of target properties.

[0057] Step 203: input the standardized spectrum of the sample to be tested into the target property calibration model to obtain the target property index value corresponding to the sample to be tested output by the target property calibration model.

[0058] The target property calibration model is constructed based on a standard spectrometer. The standard spectrometer serves as the calibration model for the micro-spectrometer and can be a high-performance laboratory spectrometer. In this embodiment, the model, size, weight, and performance parameters of the standard spectrometer and the micro-spectrometer are not specifically limited.

[0059] It can be understood that the target property calibration model is a spectral analysis model, and the target property index value corresponding to the sample to be tested can be obtained based on the standardized spectrum of the input sample to be tested. In practical applications, the target property calibration model is constructed based on a standard spectrometer. Specifically, multiple representative samples of the target substance are collected, and the target property index value of each representative sample is measured; and the spectrum of each representative sample collected by the standard spectrometer is obtained. In one example, based on the target property index value of each representative sample and the spectrum of each representative sample, a target property calibration model is established by a chemometric method. In another example, an initial target property calibration model is constructed based on machine learning, and a training set is constructed based on the target property index value of each representative sample and the spectrum of each representative sample, and the initial target property calibration model is trained until the target property calibration model is obtained.

[0060] In this embodiment, the initial spectrum of the sample to be tested collected by the micro-spectrometer is spectrally transferred according to the spectrum transfer path corresponding to the micro-spectrometer, and the spectrum corresponding to the initial spectrum of the sample to be tested under the standard spectrometer is obtained, that is, the standardized spectrum of the sample to be tested. Among them, the standard spectrometer is a calibration model for the micro-spectrometer, which is a high-performance laboratory spectrometer. Furthermore, the standardized spectrum of the sample to be tested is input into the target property calibration model constructed based on the standard spectrometer to obtain the target property index value corresponding to the sample to be tested. Therefore, the scheme of this embodiment realizes the accurate calibration of the micro-spectrometer, improves the stability of the micro-spectrometer and the consistency between different micro-spectrometers, thereby improving the accuracy of material property detection.

[0061] In addition, in order to further improve the accuracy of material property detection, an independent verification sample set with target property index values can be established to evaluate the performance of the target material property calibration model and the performance of the micro-spectrometer in detecting the target material property. The evaluation indicators are not specifically limited in the present invention, and include but are not limited to the coefficient of determination and the root mean square error value.

[0062] As an example, in one possible implementation, after step 103 above, the method for sharing calibration models of multiple micro-spectrometers further includes: constructing a first verification sample set, the first verification sample set including multiple first verification samples, each first verification sample corresponding to the spectrum of a standard spectrometer, and a target property index reference value corresponding to each first verification sample; and verifying the target property detection model based on the first verification sample set.

[0063] In practical applications, the target property detection model is verified based on the first validation sample set. Specifically, the difference between the actual value of the target property indicator corresponding to each first validation sample output by the target property detection model and the target property reference value can be calculated, for example, the coefficient of determination, root mean square error, etc. If the difference meets the requirements, the target property detection model is determined to be accurate; if the difference does not meet the requirements, the target property detection model is adjusted until the target property detection model meets the requirements.

[0064] In this embodiment, the target property detection model is verified based on the first verification sample set, which improves the stability and accuracy of the target property detection model, thereby improving the accuracy of material property detection.

[0065] As an example, in one possible embodiment, after determining the spectral transfer path corresponding to the micro-spectrometer according to the spectral transfer algorithm based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set, the above-mentioned method for sharing calibration models of multiple micro-spectrometers also includes: constructing a second verification sample set, the second verification sample set including multiple second verification samples, each second verification sample corresponding to the spectrum of the standard spectrometer, and each second verification sample corresponding to the spectrum of the micro-spectrometer; verifying the spectral transfer path corresponding to the micro-spectrometer based on the second verification sample set.

[0066] In practical applications, the spectral transfer path corresponding to the micro-spectrometer is verified based on the second verification sample set. Specifically, the spectrum obtained by spectrally transferring the spectrum of each second verification sample corresponding to the standard spectrometer according to the spectral transfer path corresponding to the micro-spectrometer can be compared with the difference between the spectrum of each second verification sample corresponding to the micro-spectrometer to verify the accuracy of the spectral transfer path corresponding to the micro-spectrometer.

[0067] In this embodiment, the spectrum transfer path corresponding to the micro-spectrometer is verified based on the second verification sample set, which improves the accuracy of the spectrum transfer path corresponding to the micro-spectrometer, thereby improving the accuracy of material property detection.

[0068] In combination with the above description, the micro-spectrometer system includes multiple micro-spectrometers. Figure 1 As shown, the micro-spectrometer system includes multiple micro-spectrometers, a standard spectrometer, and a target property calibration model, enabling efficient deployment of multiple micro-spectrometers. In one example, multiple micro-spectrometers can perform parallel testing on different samples, improving the efficiency of material detection.

[0069] In another example, in order to accurately detect the properties of the sample to be tested, the sample to be tested can be tested separately by multiple micro-spectrometers, and the target property index value corresponding to the sample to be tested can be determined based on the detection results obtained by the multiple micro-spectrometers.

[0070] As an example, in one possible embodiment, the above-mentioned method for sharing calibration models of multiple micro-spectrometers is applied to a micro-spectrometer system, which includes multiple micro-spectrometers and a standard spectrometer; the above-mentioned method for sharing calibration models of multiple micro-spectrometers also includes: obtaining multiple samples to be tested, and the number of the multiple samples to be tested is consistent with the number of the multiple micro-spectrometers; collecting the multiple samples to be tested through multiple micro-spectrometers to obtain the initial spectrum corresponding to each sample to be tested; spectrally transferring the initial spectrum corresponding to each sample to be tested based on the spectrum transfer path corresponding to each micro-spectrometer, to obtain a standardized spectrum of each sample to be tested; inputting the standardized spectrum of each sample to be tested into the target property calibration model to obtain the target property index value of each sample to be tested output by the target property calibration model.

[0071] In practical applications, there is a need to perform material testing on multiple samples. For example, for large or complex samples, material testing needs to be performed at multiple locations. In one example, multiple samples are prepared at different locations on the large or complex sample. The material properties of the multiple samples are then tested using multiple micro-spectrometers in a micro-spectrometer system, thereby improving the efficiency of material property testing.

[0072] For example, during the operation of an industrial assembly line, it is necessary to test the properties of materials obtained at different steps. In one example, multiple micro-spectrometers can be installed at different processing locations on the industrial assembly line, enabling testing of products at different processing locations on the industrial assembly line, thereby improving the efficiency of material property testing.

[0073] In one example, multiple micro-spectrometers are used to detect samples at different stages of a synthesis or processing process, thereby improving the efficiency of detecting material properties.

[0074] It should be noted that the multiple test samples may not be from a single sample, but may be prepared from different locations of a large or complex sample. In this embodiment, multiple micro-spectrometers can be used to perform parallel substance detection on multiple test samples, thereby improving the efficiency of substance detection.

[0075] This embodiment provides a method and apparatus for sharing calibration models for multiple micro-spectrometers. The method and apparatus construct a calibration sample set; obtain a first spectrum corresponding to each calibration sample, acquired by a standard spectrometer; construct a target property detection model using chemometric methods based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample; select a portion of the calibration samples from the calibration sample set to construct a spectrum transfer sample set; and perform standardization processing on each micro-spectrometer. This embodiment enables the sharing of calibration models for multiple micro-spectrometers, enabling efficient deployment of multiple micro-spectrometers and supporting multi-scenario applications of micro-spectrometer systems.

[0076] The following describes a device for sharing calibration models of multiple micro-spectrometers provided by the present invention. The device for sharing calibration models of multiple micro-spectrometers described below and the method for sharing calibration models of multiple micro-spectrometers described above can refer to each other.

[0077] Figure 4 This is a schematic diagram of the structure of the device for sharing calibration models of multiple micro-spectrometers provided by the present invention. Figure 4 As shown, the device for sharing calibration models of multiple micro-spectrometers includes: a first construction module 41 , a first acquisition module 42 , a second construction module 43 , a selection module 44 and a processing module 45 .

[0078] The first construction module 41 is used to construct a calibration sample set, which includes a plurality of calibration samples and a target property index reference value corresponding to each calibration sample.

[0079] The first acquisition module 42 is configured to acquire a first spectrum corresponding to each calibration sample acquired by the standard spectrometer.

[0080] Specifically, multiple representative samples of the target substance are collected and pre-processed to obtain multiple calibration samples. A reference value of the target property index corresponding to each calibration sample is measured to construct a calibration sample set. Furthermore, a first spectrum corresponding to each calibration sample in the calibration sample set is collected using a standard spectrometer.

[0081] The second construction module 43 is configured to construct a target property detection model using a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample.

[0082] Among them, the target property calibration model is a spectral analysis model. According to the first spectrum corresponding to each calibration sample collected by the standard spectrometer, the true value of the target property index corresponding to each calibration sample can be output. In practical applications, the accuracy of the target property detection model can be verified by calculating the error between the true value of the target property index corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample. If the error is large, the parameters of the target property detection model can be adjusted until the error meets the requirements, that is, the required target property detection model is obtained. It can be understood that in the constructed target property detection model, the error between the true value of the target property index corresponding to each calibration sample input and the reference value of the target property index corresponding to each calibration sample is within a certain range.

[0083] The selection module 44 is used to select some calibration samples from the calibration sample set to construct a spectrum transfer sample set.

[0084] In practical applications, a portion of the calibration samples can be selected from the calibration sample set based on the first spectrum corresponding to each calibration sample in the calibration sample set and the differences in properties of the multiple calibration samples. The present invention does not specifically limit the method for selecting the portion of the calibration samples; for example, the selection method includes, but is not limited to, the concentration gradient method and the spectral distance method.

[0085] The processing module 45 is configured to perform standardization processing on each micro-spectrometer to enable shared calibration models across multiple micro-spectrometers. This standardization processing includes obtaining a second spectrum corresponding to each calibration sample in a spectrum transfer sample set collected by the micro-spectrometer. Based on the first and second spectra corresponding to each calibration sample in the spectrum transfer sample set, a spectrum transfer path corresponding to the micro-spectrometer is determined using a spectrum transfer algorithm.

[0086] In conjunction with the above description, the spectral transfer path corresponding to the micro-spectrometer is the transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer. Therefore, determining the spectral transfer path corresponding to the micro-spectrometer is to determine the corresponding relationship between the spectrum corresponding to the micro-spectrometer and the spectrum corresponding to the standard spectrometer.

[0087] Specifically, the first spectrum and the second spectrum corresponding to each calibration sample are collected by the standard spectrometer and the micro spectrometer, respectively. Therefore, in this embodiment, the processing module 45 determines the spectrum transfer path corresponding to the micro spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample according to the spectrum transfer algorithm.

[0088] As an example, for the method of determining the spectral transfer path corresponding to the micro-spectrometer, in one example, the above-mentioned processing module 45 is used to determine the spectral transfer path corresponding to the micro-spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set according to the spectral transfer algorithm, and is specifically used to: calculate the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectral transfer sample set according to the spectral transfer algorithm; determine the spectral transfer path corresponding to the micro-spectrometer based on the transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer.

[0089] It should be noted that the present invention does not specifically limit the spectrum transfer algorithm, and the spectrum transfer algorithm includes but is not limited to the spectrum difference correction method, the direct normalization method and the slope-intercept correction method.

[0090] In practical applications, multiple micro-spectrometers can be deployed as needed. On the one hand, the solution of the present invention allows calibration of multiple micro-spectrometers based on a standard spectrometer, saving the cost of material property testing. On the other hand, the solution of the present invention enables accurate calibration of multiple micro-spectrometers, improving the accuracy and reliability of material detection.

[0091] In this embodiment, a calibration sample set is constructed; a first spectrum corresponding to each calibration sample collected by a standard spectrometer is obtained; based on the first spectrum corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample, a target property detection model is constructed by a chemometric method; some calibration samples are selected from the calibration sample set to construct a spectrum transfer sample set; for each micro-spectrometer, standardization processing is performed to ensure accurate calibration of multiple micro-spectrometers, improve the stability of the micro-spectrometer and the consistency between different micro-spectrometers, realize the sharing of calibration models of multiple micro-spectrometers, enable efficient deployment of multiple micro-spectrometers, and provide support for multi-scenario applications of the micro-spectrometer system.

[0092] In a possible implementation, the device for sharing calibration models of multiple micro-spectrometers further includes: an acquisition module, a conversion module, and an input module.

[0093] The acquisition module is used to acquire the initial spectrum of the sample to be tested collected by the micro-spectrometer.

[0094] Micro-spectrometers are core components of spectral measurement systems. They are essential devices that apply optical, electronic, and computer technologies to analyze and measure the composition and structure of materials. Their modularity and high-speed acquisition capabilities have led to widespread application in system integration and field testing. Combined with light sources, optical fibers, and measurement accessories, they can be configured into various optical measurement systems. Their compact size allows for flexible configuration of spectral systems, resulting in widespread applications in environmental monitoring, industrial control, chemical analysis, food quality testing, materials analysis, clinical testing, aerospace remote sensing, and scientific education.

[0095] In combination with specific application scenarios, the micro-spectrometer can quickly detect multiple properties of a substance, such as substance composition analysis. In this embodiment, the sample to be tested refers to a sample of the substance to be tested, and can be any portion selected from the substance to be tested.

[0096] In practical applications, a sample to be tested is placed in the path of incident light. The sample absorbs, reflects, or scatters the incident light. The micro-spectrometer collects the reflected light from the sample to determine its initial spectrum. It is understood that the initial spectrum of the sample to be tested can characterize its properties. Furthermore, the properties of the sample to be tested can be determined by analyzing its initial spectrum.

[0097] The conversion module 42 is configured to perform spectrum transfer on the initial spectrum of the sample to be tested according to the spectrum transfer path corresponding to the micro-spectrometer to obtain a standardized spectrum of the sample to be tested.

[0098] The spectral transfer path corresponding to the micro-spectrometer is the transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer. The spectral transfer path corresponding to the micro-spectrometer represents the relationship between the spectrum corresponding to the micro-spectrometer and the spectrum corresponding to the standard spectrometer. As an example, the spectral transfer path includes the spectral transfer method and spectral transfer parameters. In practical applications, the spectral transfer path corresponding to the micro-spectrometer can be predetermined based on a spectral transfer algorithm.

[0099] In practical applications, multiple micro-spectrometers can be deployed, all calibrated using a standard spectrometer. Specifically, each micro-spectrometer corresponds to a spectral transfer path. It is understood that, according to the spectral transfer path corresponding to the micro-spectrometer, the initial spectrum of the sample to be tested can be spectrally transferred to obtain the spectrum corresponding to the standard spectrometer, i.e., the standardized spectrum of the sample to be tested.

[0100] It should be noted that when a new micro-spectrometer needs to be deployed, the spectral transfer path corresponding to the micro-spectrometer needs to be determined so that the initial spectrum of the sample to be tested collected by the micro-spectrometer can be subsequently spectrally transferred to obtain the standardized spectrum of the sample to be tested.

[0101] Furthermore, after obtaining the standardized spectrum of the sample to be tested, the standardized spectrum of the sample to be tested can be analyzed based on a standard spectrometer to achieve detection of target properties.

[0102] The above-mentioned input module is used to input the standardized spectrum of the sample to be tested into the target property calibration model to obtain the target property index value corresponding to the sample to be tested output by the target property calibration model; wherein, the target property calibration model is constructed based on a standard spectrometer.

[0103] The standard spectrometer is a calibration model for the micro-spectrometer and can be a high-performance laboratory spectrometer. In this embodiment, the model, size, weight, and performance parameters of the standard spectrometer and the micro-spectrometer are not specifically limited.

[0104] It can be understood that the target property calibration model is a spectral analysis model, and the target property index value corresponding to the sample to be tested can be obtained based on the standardized spectrum of the input sample to be tested. In practical applications, the target property calibration model is constructed based on a standard spectrometer. Specifically, multiple representative samples of the target substance are collected, and the target property index value of each representative sample is measured; and the spectrum of each representative sample collected by the standard spectrometer is obtained. In one example, based on the target property index value of each representative sample and the spectrum of each representative sample, a target property calibration model is established by a chemometric method. In another example, an initial target property calibration model is constructed based on machine learning, and a training set is constructed based on the target property index value of each representative sample and the spectrum of each representative sample, and the initial target property calibration model is trained until the target property calibration model is obtained.

[0105] In this embodiment, the conversion module performs spectral transfer on the initial spectrum of the sample to be tested acquired by the micro-spectrometer acquired by the acquisition module according to the spectrum transfer path corresponding to the micro-spectrometer, and obtains the spectrum under the standard spectrometer corresponding to the initial spectrum of the sample to be tested, that is, the standardized spectrum of the sample to be tested. Among them, the standard spectrometer is a calibration model for the micro-spectrometer, which is a high-performance laboratory spectrometer. Furthermore, the input module inputs the standardized spectrum of the sample to be tested into the target property calibration model constructed based on the standard spectrometer, and obtains the target property index value corresponding to the sample to be tested. Therefore, the solution of this embodiment realizes the accurate calibration of the micro-spectrometer, improves the stability of the micro-spectrometer and the consistency between different micro-spectrometers, thereby improving the accuracy of material property detection.

[0106] In addition, in order to further improve the accuracy of material property detection, an independent verification sample set with target property index values can be established to evaluate the performance of the target material property calibration model and the performance of the micro-spectrometer in detecting the target material property. The evaluation indicators are not specifically limited in the present invention, and include but are not limited to the coefficient of determination and the root mean square error value.

[0107] As an example, in one possible embodiment, the above-mentioned device for sharing calibration models of multiple micro-spectrometers also includes: a first verification module, used to construct a first verification sample set, the first verification sample set including multiple first verification samples, each first verification sample corresponding to the spectrum of a standard spectrometer, and a target property index reference value corresponding to each first verification sample; and verifying the target property detection model based on the first verification sample set.

[0108] In practical applications, the first verification module verifies the target property detection model based on the first verification sample set. Specifically, the module can calculate the difference between the actual value of the target property indicator corresponding to each first verification sample output by the target property detection model and the target property reference value, for example, calculating the coefficient of determination, root mean square error, etc. If the difference meets the requirements, the target property detection model is determined to be accurate; if the difference does not meet the requirements, the target property detection model is adjusted until the target property detection model meets the requirements.

[0109] In this embodiment, the first verification module verifies the target property detection model based on the first verification sample set, thereby improving the stability and accuracy of the target property detection model, thereby improving the accuracy of material property detection.

[0110] As an example, in one possible embodiment, the above-mentioned device for sharing calibration models of multiple micro-spectrometers also includes: a second verification module, used to construct a second verification sample set, the second verification sample set including multiple second verification samples, each second verification sample corresponding to the spectrum of a standard spectrometer, and each second verification sample corresponding to the spectrum of a micro-spectrometer; based on the second verification sample set, the spectral transfer path corresponding to the micro-spectrometer is verified.

[0111] In actual applications, the second verification module verifies the spectral transfer path corresponding to the micro-spectrometer based on the second verification sample set. Specifically, the spectrum obtained by spectrally transferring the spectrum of each second verification sample corresponding to the standard spectrometer according to the spectral transfer path corresponding to the micro-spectrometer can be compared with the difference between the spectrum of each second verification sample corresponding to the micro-spectrometer to verify the accuracy of the spectral transfer path corresponding to the micro-spectrometer.

[0112] In this embodiment, the second verification module verifies the spectral transfer path corresponding to the micro-spectrometer based on the second verification sample set, thereby improving the accuracy of the spectral transfer path corresponding to the micro-spectrometer and thus improving the accuracy of material property detection.

[0113] In combination with the above description, the micro-spectrometer system includes multiple micro-spectrometers. Figure 1 As shown, the micro-spectrometer system includes multiple micro-spectrometers, a standard spectrometer, and a target property calibration model, enabling efficient deployment of multiple micro-spectrometers. In one example, multiple micro-spectrometers can perform parallel testing on different samples, improving the efficiency of material detection.

[0114] In another example, in order to accurately detect the properties of the sample to be tested, the sample to be tested can be tested separately by multiple micro-spectrometers, and the target property index value corresponding to the sample to be tested is determined based on the detection results obtained by the multiple micro-spectrometers. As an example, in one possible embodiment, the above-mentioned multiple micro-spectrometer calibration model sharing device is applied to a micro-spectrometer system, and the micro-spectrometer system includes multiple micro-spectrometers and a standard spectrometer; the above-mentioned multiple micro-spectrometer calibration model sharing device also includes: a preparation module for obtaining multiple samples to be tested, and the number of the multiple samples to be tested is consistent with the number of the multiple micro-spectrometers; the above-mentioned acquisition module is also used to collect the multiple samples to be tested through the multiple micro-spectrometers to obtain the initial spectrum corresponding to each sample to be tested; the above-mentioned conversion module is also used to perform spectral transfer on the initial spectrum corresponding to each sample to be tested based on the spectral transfer path corresponding to each micro-spectrometer, to obtain the standardized spectrum of each sample to be tested; the above-mentioned input module is also used to input the standardized spectrum of each sample to be tested into the target property calibration model to obtain the target property index value of each sample to be tested output by the target property calibration model.

[0115] In practical applications, there is a need to perform material testing on multiple samples. For example, for large or complex samples, material testing needs to be performed at multiple locations. In one example, multiple samples are prepared at different locations on the large or complex sample. The material properties of the multiple samples are then tested using multiple micro-spectrometers in a micro-spectrometer system, thereby improving the efficiency of material property testing.

[0116] For example, during the operation of an industrial assembly line, it is necessary to test the properties of materials obtained at different steps. In one example, multiple micro-spectrometers can be installed at different processing locations on the industrial assembly line, enabling testing of products at different processing locations on the industrial assembly line, thereby improving the efficiency of material property testing.

[0117] It should be noted that the multiple test samples may not be from a single sample, but may be prepared from different locations of a large or complex sample. In this embodiment, multiple micro-spectrometers can be used to perform parallel substance detection on multiple test samples, thereby improving the efficiency of substance detection.

[0118] This embodiment provides a device for sharing calibration models for multiple micro-spectrometers. The first construction module constructs a calibration sample set; the first acquisition module obtains the first spectrum corresponding to each calibration sample acquired by a standard spectrometer; the second construction module constructs a target property detection model using a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample; the selection module selects some calibration samples from the calibration sample set to construct a spectrum transfer sample set; and the processing module performs standardization processing on each micro-spectrometer. The solution of the present invention enables the sharing of calibration models for multiple micro-spectrometers, enables the efficient deployment of multiple micro-spectrometers, and provides support for the multi-scenario application of the micro-spectrometer system.

[0119] In addition, the present invention also provides a micro-spectrometer system, which includes multiple micro-spectrometers, a standard spectrometer, and a calibration model sharing device for multiple micro-spectrometers.

[0120] Figure 5 Schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 5 As shown, the electronic device may include: a processor (processor) 510, a communication interface (Communications Interface) 520, a memory (memory) 530 and a communication bus 540, wherein the processor 510, the communication interface 520, and the memory 530 communicate with each other through the communication bus 540. The processor 510 can call the logic instructions in the memory 530 to execute a method for sharing calibration models of multiple micro-spectrometers, which includes: constructing a calibration sample set, the calibration sample set including multiple calibration samples and a target property index reference value corresponding to each calibration sample; obtaining a first spectrum corresponding to each calibration sample collected by a standard spectrometer; based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample, constructing a target property detection model through a chemometric method; selecting some calibration samples from the calibration sample set to construct a spectrum transfer sample set; for each micro-spectrometer, performing standardization processing to realize the sharing of calibration models of multiple micro-spectrometers; wherein the standardization processing includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set collected by the micro-spectrometer; based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set, determining the spectrum transfer path corresponding to the micro-spectrometer according to the spectrum transfer algorithm.

[0121] Furthermore, the logic instructions in the aforementioned memory 530 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0122] On the other hand, the present invention further provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can perform the method for sharing calibration models of multiple micro-spectrometers provided by the above methods, which includes:

[0123] Construct a calibration sample set, which includes multiple calibration samples and a reference value of a target property index corresponding to each calibration sample; obtain a first spectrum corresponding to each calibration sample collected by a standard spectrometer; construct a target property detection model through a chemometric method based on the first spectrum corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample; select some calibration samples from the calibration sample set to construct a spectrum transfer sample set; perform standardization processing on each micro-spectrometer to achieve sharing of calibration models of multiple micro-spectrometers; wherein the standardization processing includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set collected by the micro-spectrometer; based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set, determine the spectrum transfer path corresponding to the micro-spectrometer according to the spectrum transfer algorithm.

[0124] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for sharing calibration models of multiple micro-spectrometers provided by the above methods, the method comprising:

[0125] Construct a calibration sample set, which includes multiple calibration samples and a reference value of a target property index corresponding to each calibration sample; obtain a first spectrum corresponding to each calibration sample collected by a standard spectrometer; construct a target property detection model through a chemometric method based on the first spectrum corresponding to each calibration sample and the reference value of the target property index corresponding to each calibration sample; select some calibration samples from the calibration sample set to construct a spectrum transfer sample set; perform standardization processing on each micro-spectrometer to achieve sharing of calibration models of multiple micro-spectrometers; wherein the standardization processing includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set collected by the micro-spectrometer; based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set, determine the spectrum transfer path corresponding to the micro-spectrometer according to the spectrum transfer algorithm.

[0126] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0127] Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software plus a necessary general-purpose hardware platform, or of course, hardware. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for causing a computer device (such as a personal computer, server, or network device) to execute the methods described in each embodiment or certain portions of the embodiments.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for sharing calibration models of multiple micro-spectrometers, characterized in that: Applied to a micro-spectrometer system, the micro-spectrometer system includes multiple micro-spectrometers and a standard spectrometer; the method includes: Constructing a calibration sample set, wherein the calibration sample set includes a plurality of calibration samples and a target property index reference value corresponding to each calibration sample; Obtaining a first spectrum corresponding to each calibration sample acquired by the standard spectrometer; Based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample, a target property detection model is constructed by a chemometric method; Selecting some calibration samples from the calibration sample set to construct a spectrum transfer sample set; For each micro-spectrometer, a standardization process is performed to achieve sharing of calibration models of the multiple micro-spectrometers; wherein the standardization process includes: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set collected by the micro-spectrometer; and determining a spectrum transfer path corresponding to the micro-spectrometer according to a spectrum transfer algorithm based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set; Obtaining an initial spectrum of the sample to be tested acquired by the micro-spectrometer; According to the spectral transfer path corresponding to the micro-spectrometer, the initial spectrum of the sample to be tested is spectrally transferred to obtain a standardized spectrum of the sample to be tested; wherein the spectral transfer path corresponding to the micro-spectrometer is the transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer; The standardized spectrum of the sample to be tested is input into a target property calibration model to obtain a target property index value corresponding to the sample to be tested output by the target property calibration model; wherein the target property calibration model is constructed based on the standard spectrometer.

2. The method for sharing calibration models of multiple micro-spectrometers according to claim 1, characterized in that: After constructing a target property detection model based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample by a chemometric method, the method includes: Constructing a first verification sample set, the first verification sample set including a plurality of first verification samples, a spectrum of each first verification sample corresponding to the standard spectrometer, and a target property index reference value corresponding to each first verification sample; The target property detection model is verified based on the first verification sample set.

3. The method for sharing calibration models of multiple micro-spectrometers according to claim 1, characterized in that: After determining the spectrum transfer path corresponding to the micro-spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set and according to the spectrum transfer algorithm, the method further includes: Constructing a second verification sample set, wherein the second verification sample set includes a plurality of second verification samples, each second verification sample corresponds to a spectrum of the standard spectrometer, and each second verification sample corresponds to a spectrum of the miniature spectrometer; The spectral transfer path corresponding to the micro-spectrometer is verified based on the second verification sample set.

4. The method for sharing calibration models of multiple micro-spectrometers according to claim 1, characterized in that: The determining, based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set and according to a spectrum transfer algorithm, a spectrum transfer path corresponding to the micro-spectrometer includes: Based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set, a transfer function between the spectrum collected by the micro-spectrometer and the spectrum collected by the standard spectrometer is calculated according to a spectrum transfer algorithm; Based on a transfer function between a spectrum acquired by the micro-spectrometer and a spectrum acquired by a standard spectrometer, a spectrum transfer path corresponding to the micro-spectrometer is determined.

5. The method for sharing calibration models of multiple micro-spectrometers according to claim 1, characterized in that: The method further comprises: Acquire a plurality of samples to be tested, where the number of the plurality of samples to be tested is consistent with the number of the plurality of micro-spectrometers; Collecting the plurality of samples to be tested by the plurality of micro-spectrometers to obtain an initial spectrum corresponding to each sample to be tested; Based on the spectrum transfer path corresponding to each micro-spectrometer, the initial spectrum corresponding to each sample to be tested is spectrally transferred to obtain a standardized spectrum of each sample to be tested; The standardized spectrum of each sample to be tested is input into the target property calibration model to obtain the target property index value of each sample to be tested output by the target property calibration model.

6. The method for sharing calibration models of multiple micro-spectrometers according to claim 5, characterized in that: The multiple samples to be tested are obtained by preparing different positions of a large sample or a complex sample.

7. The method for sharing calibration models of multiple micro-spectrometers according to any one of claims 1 to 6, characterized in that: The multiple micro-spectrometers can be arranged at different processing positions of an industrial production line.

8. The method for sharing calibration models of multiple micro-spectrometers according to any one of claims 1 to 6, characterized in that: The multiple micro-spectrometers are used to detect samples to be tested at different stages of the synthesis process or the processing process.

9. A micro-spectrometer system, characterized in that: The micro-spectrometer system includes multiple micro-spectrometers, a standard spectrometer, and a multiple micro-spectrometer calibration model sharing device, wherein the multiple micro-spectrometer calibration model sharing device includes: A first construction module is used to construct a calibration sample set, wherein the calibration sample set includes a plurality of calibration samples and a target property index reference value corresponding to each calibration sample; A first acquisition module, configured to acquire a first spectrum corresponding to each calibration sample acquired by the standard spectrometer; A second construction module is configured to construct the target property detection model by a chemometric method based on the first spectrum corresponding to each calibration sample and the target property index reference value corresponding to each calibration sample; A selection module, configured to select some calibration samples from the calibration sample set to construct a spectrum transfer sample set; a processing module configured to perform a standardization process on each micro-spectrometer to achieve sharing of calibration models among the multiple micro-spectrometers; wherein the standardization process comprises: obtaining a second spectrum corresponding to each calibration sample in the spectrum transfer sample set acquired by the micro-spectrometer; and determining a spectrum transfer path corresponding to the micro-spectrometer based on the first spectrum and the second spectrum corresponding to each calibration sample in the spectrum transfer sample set and according to a spectrum transfer algorithm; An acquisition module is used to obtain the initial spectrum of the sample to be tested acquired by the micro-spectrometer; a conversion module, configured to perform spectral transfer on the initial spectrum of the sample to be tested according to a spectral transfer path corresponding to the micro-spectrometer to obtain a standardized spectrum of the sample to be tested; wherein the spectral transfer path corresponding to the micro-spectrometer is a transfer path required to transfer the spectrum corresponding to the micro-spectrometer to the spectrum corresponding to the standard spectrometer; An input module is used to input the standardized spectrum of the sample to be tested into a target property calibration model to obtain the target property index value corresponding to the sample to be tested output by the target property calibration model; wherein the target property calibration model is constructed based on the standard spectrometer.

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