Portable Raman spectrum analysis device and use method

Abstract

The invention relates to the field of detection devices, and discloses a portable Raman spectrum analysis device and a use method.The portable Raman spectrum analysis device comprises a Raman spectrum analyzer body, a shading mechanism, a limiting mechanism, a supporting mechanism and a central control system; the use method comprises the following steps: after the device is started, opening the shading plate and automatically locking, unfolding the supporting structure to fix equipment, adjusting the limiting mechanism to place a sample, inputting parameters through the touch screen, automatically emitting laser by the system to collect a spectrum, completing spectrum analysis and component identification, generating a detection report, and wirelessly exporting the detection report. Meanwhile, the data are stored to the local and the cloud. Through the structure and the method, rapid deployment and stable operation of the device are realized, the data processing efficiency and the detection precision are improved, the field application capability is enhanced, and the device has good portability, intellectualization and safety and is suitable for multi-scene rapid detection requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a portable Raman spectroscopy analysis device and a use method thereof. Background Art

[0002] Raman spectroscopy, a spectroscopic analysis method based on changes in molecular vibrational energy levels, has garnered widespread attention and continued development in fields such as materials science, biomedicine, food safety, and environmental monitoring due to its significant advantages, including rapidity, non-destructiveness, the absence of sample pretreatment requirements, compatibility with complex matrices, and non-destructiveness to the sample itself. In recent years, with the growing demand for on-site and mobile testing, portable Raman spectroscopy devices have become a key area of engineering application for this technology, aiming to enable real-time, intelligent, and scenario-based deployment of Raman analysis.

[0003] In the prior art, traditional Raman spectroscopy analysis devices are mostly laboratory benchtop structures with large size, usually including a separate laser excitation system, sample platform, spectral analysis unit and data processing terminal. Such devices rely on an external power supply system, are cumbersome to install and debug, and need to be used in a stable experimental environment. They are not suitable for mobile deployment outdoors or in complex environments. Even though some so-called "portable" Raman spectroscopy devices have appeared in recent years, such devices are often only preliminarily compressed in size. The internal modules still use decentralized control and serial processes, and fail to achieve the integration and automation of functions such as laser control, data acquisition, spectrum analysis and result export in a unified system. The linkage between systems is poor, resulting in users still having to manually switch control instructions and data processing steps multiple times in actual operation, which increases the complexity of operation and the risk of error.

[0004] In addition, due to the lack of structural optimization to adapt to the field environment, the Raman devices in the existing technology usually do not have appropriate light-shielding safety mechanisms. When the detection head is not stably aligned with the sample or the device is in an abnormal state, the laser is still in the on state, posing a safety hazard. At the same time, most of these devices are not equipped with reliable sample limit devices. In outdoor or mobile scenarios, it is difficult for the sample to maintain precise alignment with the laser detection head, which can easily cause data deviation. In addition, the detection platform itself lacks an adjustable and foldable stable support structure, which makes it difficult for the device to work stably on non-ideal planes or complex terrain, thus seriously affecting its field detection capabilities and portability.

[0005] Furthermore, existing portable devices typically use relatively basic spectral algorithms for spectral data processing, making it difficult to effectively remove fluorescence background interference and insufficiently retaining the effective Raman signature signal after subtraction, affecting the accuracy of the final analysis. Because the analysis software and control system operate on different platforms, data exchange is inefficient and operational processes are fragmented, further limiting overall system performance.

[0006] Therefore, the present invention provides a portable Raman spectroscopy analysis device and a method of use to address the deficiencies of the prior art. Summary of the Invention

[0007] In response to the shortcomings of the existing technology, the present invention provides a portable Raman spectroscopy analysis device and a method of use, which solves the problems of existing Raman spectroscopy devices such as large size, low integration, cumbersome operation, low data processing efficiency and lack of portability.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A portable Raman spectroscopy analysis device, comprising:

[0009] A Raman spectrometer body, wherein a detection head is installed on one side of the top of the Raman spectrometer body, and a touch screen is installed on the front side of the Raman spectrometer body;

[0010] A light shielding mechanism, which is used to prevent the laser from accidentally emitting from the detection head when the detection head is not in a normal working state;

[0011] A limiting mechanism, the limiting mechanism is used to fix the object to be detected;

[0012] A support mechanism, which is a foldable or retractable support structure for providing stable support for the Raman spectrometer when the main body is in use or idle;

[0013] Central control system, the central control system is used to uniformly manage and control various functional modules.

[0014] The present invention also provides a method for using a portable Raman spectroscopy analysis device, comprising the following steps:

[0015] S1. By starting the main body of the Raman spectrometer, the touch screen loads the initialization interface. At this time, by pulling the connecting plate away from the detection head, the light shielding plate is driven to move away from the top of the detection head. When the connecting plate moves in the direction away from the detection head, the reset spring is compressed, and the connecting rod is driven to move. When it moves to the connecting block, the bottom of the fixed rod contacts the top of the connecting block, and the fixed rod slides at the bottom through hole of the fixed cylinder 2, and drives the movable plate 2 to slide on the inner wall of the fixed cylinder 2. When the bottom of the fixed rod contacts the fixed hole, it is stuck in the fixed hole, thereby fixing the light shielding plate to prevent it from moving to the top of the detection head;

[0016] S2. Pull the support plate away from the main body of the Raman spectrometer to rotate the support plate, and then use the reinforcing rod to adjust the support angle until the anti-slip pad contacts the support surface, so that the main body of the Raman spectrometer is placed.

[0017] S3. Pull the multi-stage telescopic rod to drive the fixing ring to adjust the height. Then rotate the fixing ring to adjust the position of the limit block via the rotating shaft so that it moves above the detection head. Place the bottle or bag containing the object to be tested between the multiple limit plates. Under the action of the tightening spring, fix the bottle or bag containing the object to be tested so that it is fixed on the top of the detection head.

[0018] S4, then input the test parameters through the touch screen;

[0019] S5, the data acquisition control module receives the parameters, controls the detection head to emit laser and synchronously collects the original spectrum data, and transmits it to the spectrum analysis module;

[0020] S6, the spectrum analysis module performs baseline correction, denoising, peak identification and component comparison to generate analysis results;

[0021] S7, the report generation and export module integrates the test parameters, spectra and analysis results to generate a test report;

[0022] S8. Select Wi-Fi or Bluetooth protocol to export the report via the touch screen;

[0023] S9. The data management module stores the Raman spectral raw data and analysis results in the local database and synchronizes them with the cloud.

[0024] The present invention provides a portable Raman spectroscopy analysis device and a method for using the device. The device has the following beneficial effects:

[0025] 1. The present invention uses a central control system to uniformly dispatch and centrally manage the touch screen module, data acquisition module, spectrum analysis module, report generation and export module, etc., realizing automatic control of the entire process from parameter setting, laser control, data acquisition, spectrum processing to result output, effectively improving the system operation efficiency, simplifying the operation process, and reducing dependence on professionals.

[0026] 2. The present invention provides a shading mechanism, which can effectively block the laser path when the detection head is not in normal working condition, preventing accidental laser emission from causing harm to the operator, significantly improving the safety of the device in non-detection state, and meeting the strict requirements for personal protection during the operation of the laser device.

[0027] 3. The present invention uses a limiting mechanism to perform multi-point limiting and elastic clamping on the sample to be tested, which can achieve rapid and stable fixation of samples of different shapes or materials, avoid shaking or deviation of the sample during laser irradiation, ensure accurate alignment between the detection head and the sample, and improve the acquisition accuracy and repeatability of Raman spectra.

[0028] 4. The present invention is configured with a foldable or retractable structure through a support mechanism, which can be unfolded to form a stable support structure when the device is in use, and can be retracted to the rear side of the Raman spectrometer body when not in use. This not only ensures the stable placement of the device in multiple scenarios, but also facilitates the transportation and on-site deployment of the device, thereby improving the practicality and portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of the present invention;

[0030] Figure 2 It is a rear view of the present invention;

[0031] Figure 3 It is a schematic diagram of the support mechanism of the present invention;

[0032] Figure 4 A cross-sectional view of a fixing cylinder of the present invention;

[0033] Figure 5 This is a schematic diagram of the shading mechanism of the present invention in use;

[0034] Figure 6 It is an enlarged view of point A of the present invention;

[0035] Figure 7 This is a second cross-sectional view of the fixing cylinder of the present invention;

[0036] Figure 8 It is a top view of the limiting mechanism of the present invention;

[0037] Figure 9 It is a front view of the limiting mechanism of the present invention;

[0038] Figure 10 This is a schematic diagram of the reinforcing rod structure of the present invention;

[0039] Figure 11 This is a diagram of the central control system architecture of the present invention.

[0040] Among them, 1. Raman spectrometer body; 2. Detection head; 3. Touch screen; 4. Shading mechanism; 401. Fixed cylinder 1; 402. Moving plate 1; 403. Reset spring; 404. Connecting plate; 405. Shading plate; 406. Connecting rod; 407. Fixed cylinder 2; 408. Moving plate 2; 409. Fixed rod; 4010. Connecting block; 4011. Fixing hole; 5. Limiting mechanism; 501. Fixed ring; 502. Fastening spring; 503. Limiting plate; 504. Connecting rod; 505. Rotating shaft; 506. Multi-stage telescopic rod; 6. Support mechanism; 601. Mounting plate; 602. Storage slot; 603. Support plate; 604. Reinforcement rod; 605. Anti-slip pad. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Please see the attached Figure 1 -Attached Figure 11 The present invention provides a portable Raman spectroscopy analysis device and a method for using the same, including:

[0043] A Raman spectrometer body 1, a detection head 2 is installed on one side of the top of the Raman spectrometer body 1, and a touch screen 3 is installed on the front side of the Raman spectrometer body 1;

[0044] The light shielding mechanism 4 is used to prevent the laser from being accidentally emitted from the detection head 2 when the detection head 2 is not in a normal working state;

[0045] The limiting mechanism 5 is used to fix the object to be detected;

[0046] The support mechanism 6 is a foldable or retractable support structure for providing stable support for the Raman spectrometer body 1 when it is in use or in an idle state;

[0047] Central control system, the central control system is used to uniformly manage and control various functional modules.

[0048] Specifically, the Raman spectrometer body 1 is used to accommodate various functional modules within the system and serves as the structural foundation of the entire machine; the detection head 2 is used to achieve efficient collection of laser irradiation and Raman signals; the touch screen 3 is used to provide a user operation interface and display the system operation status and detection results in real time; the shading mechanism 4 is used to block the laser path when the device is not started or in a non-detection state to avoid danger caused by accidental laser radiation; the limiting mechanism 5 is used to stabilize the sample position during the detection process, ensure that the object to be tested and the detection head are properly aligned, and improve the test accuracy; the support mechanism 6 is a bracket device that can be deployed or retracted, used to support the main body when the device is in operation or standby mode, and enhance the structural stability during use;

[0049] The central control system is used to coordinate and control the workflow of each module of the whole machine, realizing the whole process management from parameter setting to result output.

[0050] Please see the attached Figure 11 , the central control system includes:

[0051] A touch screen module, connected to the touch screen 3, is used to display the operation interface and receive user input, and to set and adjust the parameters of laser power, integration time, and acquisition mode required for Raman spectroscopy detection;

[0052] The data acquisition control module is used to control the laser emission of the detector head 2 and the acquisition of Raman spectrum raw data according to the parameters set by the parameter setting module, and transmit the Raman spectrum raw data to the analysis module:

[0053] The spectrum analysis module performs baseline correction, denoising, peak identification, and component comparison analysis on the collected Raman spectrum raw data and generates analysis results;

[0054] The report generation and export module generates a test report containing test parameters, graphs, and analysis results based on the analysis results of the graph analysis module, and exports it via Wi-Fi or Bluetooth:

[0055] The data management module is used to automatically classify and store Raman spectroscopy raw data and analysis results, associate detection parameters and ensure data reproducibility, and supports local and cloud synchronization and multi-level permission management;

[0056] The power module is connected to the touch display module, parameter setting module, data acquisition control module, graph analysis module, report generation and export module, data management module and power module to provide stable working power.

[0057] Specifically, the touch screen module is used to present an interactive interface after the device is started, supporting users to set detection parameters by touch, including laser power, integration time, acquisition mode, etc., and can display spectral images and analysis results in real time; the data acquisition control module is used to drive the detection head 2 to accurately perform laser excitation and Raman signal acquisition tasks after receiving the detection parameters set by the user, and at the same time cache the collected raw spectral data and transmit it to the spectrum analysis module in a timely manner; the spectrum analysis module is used to automatically analyze and process the received Raman spectrum raw data, including performing baseline drift correction, signal denoising, characteristic peak extraction and component comparison with the preset database, so as to obtain visual analysis conclusions; The report generation and export module is used to integrate the test results output by the spectrum analysis module with the original test parameters to generate a test report in a standardized format. It also supports rapid export via Wi-Fi or Bluetooth to achieve convenient data transmission and archiving; the data management module is used to perform structured classification management on the collected Raman spectrum raw data and analysis results to ensure that they correspond one-to-one with the test parameters, and at the same time supports local storage, cloud synchronization and hierarchical access control of data; the power module is used to provide continuous and stable power supply for the entire system, ensuring that the touch display module, data acquisition and control module, spectrum analysis module, report generation and export module and data management module can operate reliably under different working conditions.

[0058] Please see the attached Figure 11 , the data acquisition control module includes:

[0059] The parameter receiving unit obtains the laser power, integration time and acquisition mode parameters of the parameter setting module;

[0060] Laser control unit, adjusting the laser emission intensity and frequency of the detection head 2;

[0061] Data acquisition unit, which performs Raman spectroscopy raw data acquisition and preliminary verification;

[0062] Transmission processing unit, which performs format standardization and cache management on raw data;

[0063] The status monitoring unit provides real-time feedback on laser energy fluctuations and data collection interruption risks.

[0064] Specifically, the parameter receiving unit receives the laser power P input by the user from the parameter setting module. laser , integration time t integration and acquisition mode M mode Parameters such as power range limit and time range limit are transmitted to the laser control unit and data acquisition unit. It can also perform preliminary verification on the parameters input by the user to ensure the legality of the parameters, such as power range limit and time range limit.

[0065] Laser control unit: After receiving the laser power and frequency parameters from the parameter receiving unit, this unit adjusts the laser emission intensity and frequency. During the dynamic spectrum acquisition process, the adjustment of laser frequency and intensity needs to be performed under a real-time feedback mechanism. Laser frequency control ensures the stability of the light source and avoids errors caused by frequency drift. The relationship between laser emission intensity and optical path efficiency can be further expressed as:

[0066] I laser =P laser ×η;

[0067] Among them, I laser is the laser emission intensity; P laser is the laser power; η is the laser optical path efficiency;

[0068] The relationship between laser frequency and wavelength can be further refined as follows:

[0069]

[0070] Among them, f laser is the laser frequency; c is the speed of light; λ is the laser wavelength; the wavelength can be adjusted according to the laser model and setting parameters to ensure the accuracy of the laser wavelength in Raman spectroscopy detection.

[0071] Data acquisition unit: This unit is responsible for collecting raw Raman spectral data and performing preliminary quality verification on the spectral signal. During the acquisition process, it checks key parameters such as signal intensity, signal-to-noise ratio, and fluctuation amplitude to ensure that there are no serious errors in the signal acquisition process;

[0072] The collected Raman spectrum signal can be expressed as:

[0073] S raw (t) = A·e -γt sin(ωt+φ)+∈;

[0074] Among them, S raw (t) is the original signal strength at time t; A is the signal amplitude, indicating the maximum value of the signal; γ is the attenuation coefficient, which controls the decay rate of the signal over time; ω is the angular frequency of the signal, in rad / s, which affects the fluctuation frequency of the signal; φ is the signal phase, which controls the initial offset of the signal; ∈ is the measurement error term, which is used to account for system noise or uncertainty factors;

[0075] The preliminary verification ensures that the signal meets the acquisition standards by processing the amplitude, frequency and noise of the collected signal.

[0076] Transmission processing unit: This unit performs format standardization, signal denoising, and cache management on the collected raw data so that the data can be transmitted to the downstream graph analysis module. Format standardization includes unifying the signal into a unified digital format, removing invalid data points, and compressing and encrypting the data during transmission to improve efficiency and data security.

[0077] Data normalization is performed by the following steps:

[0078]

[0079] Among them, S norm (t) is the normalized signal; S raw (t) is the original signal; min(S raw ) and max(S raw ) are the minimum and maximum values of the original signal, which are used for normalization processing to make the signal fall into the standardized interval [0,1];

[0080] Data transmission uses compression algorithms for efficient transmission, such as Huffman coding or LZ77 compression.

[0081] Condition Monitoring Unit: This unit continuously monitors laser power fluctuations, signal acquisition interruption risks, and abnormal data points to ensure the stability of the entire data acquisition process. When abnormal fluctuations or acquisition interruption risks are detected, the condition monitoring unit will issue a warning and trigger an automatic correction mechanism (such as adjusting laser power, re-acquisition, etc.);

[0082] The laser power fluctuation monitoring formula is as follows:

[0083] ΔP laser =P laser (t)-P laser (t0);

[0084] Where ΔP laser is the power fluctuation; P laser (t) is the laser power at the current moment; P laser (t0) is the initial set power; if the fluctuation exceeds a predetermined threshold (for example, the maximum value is set to 5%), the system will automatically alarm;

[0085] Data loss monitoring formula:

[0086]

[0087] Among them, D loss is the data loss rate; N valid is the number of valid data points; N total If the loss rate exceeds a predetermined threshold (e.g. 10%), an alarm will be triggered and a re-collection procedure will be initiated.

[0088] Please see the attached Figure 11 The spectrum analysis module includes a baseline correction module, a noise filtering module, a peak positioning module, a component comparison module and a result integration module, which sequentially performs baseline drift correction, high-frequency noise filtering, characteristic peak coordinate extraction, chemical composition matching and analysis result summary on the Raman spectrum raw data.

[0089] Specifically, the baseline correction module: This module is used to correct the baseline drift in the Raman spectral data. Due to changes in laser power, stray light in the optical path and the unevenness of the sample surface, the raw Raman spectral data often has a certain baseline drift, resulting in inaccurate analysis results. The baseline correction module eliminates the influence of the background signal by modeling and correcting the baseline part of the spectral signal, making subsequent analysis more accurate; baseline drift correction can effectively improve the readability and detection accuracy of the signal, and provide more stable benchmark data for subsequent noise filtering and peak positioning. Common baseline correction methods include polynomial fitting method, local regression method (LOESS), etc. These methods can effectively remove baseline changes caused by external factors.

[0090] Noise Filtering Module: The noise filtering module removes high-frequency noise from the Raman spectrum. Noise sources include laser fluctuations, circuit interference, and environmental noise, and typically manifest as random signal fluctuations. To improve the signal-to-noise ratio and reduce errors, the noise filtering module smoothes the spectral data and removes unnecessary noise. Noise filtering helps preserve the true Raman spectral characteristics while removing unwanted signals caused by the device or the external environment. Common noise filtering methods include Fourier transform filtering, waveform wavelet transform, and moving average. These methods can significantly improve spectral quality and make characteristic peaks clearer.

[0091] Peak Location Module: This module analyzes de-noised Raman spectral data to accurately extract characteristic peaks from the signal. These characteristic peaks typically represent specific vibrational modes of chemical components in the sample, making accurate peak location crucial for subsequent compositional analysis. This module uses peak extraction algorithms (such as the Laplace operator and local maximum detection) to pinpoint the locations of significant peaks in the spectrum and their corresponding wavenumbers. Peak location not only helps identify the sample's chemical composition but also provides information about its molecular structure. Accurate peak location is fundamental to the entire analysis process and provides critical data for the composition comparison module.

[0092] Component comparison module: The function of the component comparison module is to match the extracted peak positions with the known spectral database to infer the possible chemical components in the sample. Through comparison analysis, the system can determine the chemical substances corresponding to each characteristic peak in the spectrum and perform qualitative or quantitative analysis on the composition of the sample; this module uses standard Raman spectral data in the database, combined with matching algorithms (such as least squares method, Pearson correlation coefficient, etc.) to compare the spectra of the samples. The component comparison module can not only identify the known components in the sample, but also perform quantitative analysis of chemical substances of different concentrations, providing users with detailed chemical composition information. Common applications include pharmaceutical analysis, food quality testing and material composition analysis.

[0093] Result integration module: The result integration module is responsible for summarizing all intermediate results obtained from the analysis and generating the final test report. The report includes information such as the sample's spectrum, peak position, component analysis results, test parameters, etc., and uses graphical display to help users understand the analysis results more intuitively; the result integration module summarizes and organizes the various data generated by the spectrum analysis module and generates an analysis report in a unified format. In addition to the analysis results, the report can also provide visualization results of the data, such as spectrum graphs, peak marker graphs, etc., which are convenient for users to refer to in subsequent work. This module also supports the export of reports, which can usually be transmitted wirelessly via Wi-Fi or Bluetooth, making it convenient for users to share and archive data.

[0094] Please see the attached Figure 11 , the report generation and export module includes:

[0095] Data integration module, which performs the correlation between detection parameters and analysis results;

[0096] Template generation module to build a standardized reporting framework;

[0097] Format conversion unit, completes PDF / Excel format conversion;

[0098] Export management module, adapted to Wi-Fi / Bluetooth protocol export;

[0099] Verification module, performs data integrity verification.

[0100] Specifically, the data integration module: The main task of the data integration module is to associate the detection parameters (such as laser power, integration time, acquisition mode, etc.) with the analysis results of the spectrum analysis module, and organize this information into relevant parts of the report. This process not only ensures the integrity of the report content, but also enables the analysis results to correspond one-to-one with the corresponding experimental settings, thereby ensuring the traceability and accuracy of the data; the module obtains the necessary analysis results and detection parameters from each functional module (such as the spectrum analysis module, data management module, etc.), and integrates them into a standard format through reasonable association rules to ensure that the structure of the report is complete and the information is comprehensive. For example, the system will associate the laser power at each sampling with the corresponding spectral data to provide a clear record of the experimental process. In addition, the data integration module also supports automatic report data filling, which greatly improves the efficiency of report generation.

[0101] Template generation module: The template generation module ensures that each report is structurally unified and complies with preset format requirements by constructing a standardized report framework. The template framework includes titles, sample information, test parameters, analysis results, graphical displays, data tables and other parts. The template generation module automatically generates the report structure based on these standard elements and dynamically adjusts the content display according to the type of experiment. This module is adapted to different types of analysis tasks through dynamic template generation. For example, in drug analysis, information such as the drug name, batch number, and test standards will be automatically added to the report framework; in material analysis, the report will include modules such as the physical properties of the sample and component comparison. The standardized template structure makes the report generation process more standardized, and users do not need to manually adjust the format each time, ensuring the consistency and professionalism of the report.

[0102] Format Conversion Unit: The format conversion unit is responsible for converting reports from the generated standard format to the output format required by the user. Common formats include PDF, Excel, Word, etc. Users can select the most suitable file format for output according to their needs, ensuring that the report can be easily viewed and used on different devices and platforms; this module supports automated format conversion, eliminating the complexity of manual operations. Through the embedded conversion algorithm, reports can be quickly converted from standard report formats to common PDF or Excel formats without the need for third-party software support, meeting the needs of different application scenarios. The Excel format is particularly suitable for situations where further data processing and analysis of the results are required, while the PDF format ensures convenient printing and formal transmission of reports.

[0103] Export Management Module: The Export Management Module is used to handle report export operations and supports file transfer via wireless communication protocols such as Wi-Fi or Bluetooth. Users can send reports to remote devices wirelessly, or export them directly to a cloud storage system, enabling seamless transmission and sharing of reports. This module supports fast and secure report exports and has the ability to automatically select the appropriate transmission method. When the device is in an environment with a Wi-Fi connection, the report will automatically be exported via Wi-Fi; if the device is in a Bluetooth environment, the report will be transmitted via Bluetooth. In addition, the Export Management Module also supports multiple devices connected at the same time, and users can choose to send to different devices or email addresses to meet the needs of different users.

[0104] Verification module: The verification module is responsible for performing data integrity checks after report generation. It ensures that the data in the generated report is not lost or erroneous, and uses multiple verification mechanisms to check whether the data in each part is consistent with the original collected data. The verification module also supports verification of data format, accuracy, and logical consistency of each part of the report; the module uses automated verification algorithms to check the integrity of all data in the report to ensure that each report meets quality standards. During the data transmission and storage process, the verification module can also automatically detect whether the report has been tampered with or damaged, and prompt the user with an error message. The verification mechanism improves the reliability of the report and avoids potential risks caused by data errors or loss. It is especially suitable for industry applications that require high-precision data and compliance (such as drug testing, quality control, etc.).

[0105] Please see the attached Figure 1 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7The shading mechanism 4 includes a fixed cylinder 401, which is fixedly connected to the top of the Raman spectrometer body 1. The inner wall of the fixed cylinder 401 is slidably connected to a movable plate 402. A return spring 403 is provided between the movable plate 402 and the fixed cylinder 401. The top of the movable plate 402 is fixedly connected to a connecting plate 404. A shading plate 405 is fixedly connected to the side of the connecting plate 404 close to the detection head 2. A locking assembly is provided on the outside of the connecting plate 404. The locking assembly includes two connecting rods 406. The two connecting rods 406 are respectively fixedly connected to the connecting plate 40 4, the bottom of the connecting rod 406 is fixedly connected to the fixed cylinder 2 407, and the bottom through hole of the fixed cylinder 2 407 is slidably connected to the fixing rod 409, and the outer sides of the fixed cylinder 1 401 are fixedly connected to the connecting blocks 4010. The inner wall of the connecting block 4010 is provided with a fixing hole 4011, and the fixing rod 409 is plugged into the fixing hole 4011. The top of the fixing rod 409 is fixedly connected to the movable plate 2 408, and the movable plate 2 408 is slidably connected to the inner wall of the fixed cylinder 2 407. The diameter of the movable plate 2 408 is larger than the diameter of the bottom through hole of the fixed cylinder 2 407.

[0106] Specifically, by cooperating between fixed cylinder 1 401 and movable plate 1 402 , movable plate 1 402 can slide left and right under the elastic force of return spring 403 , and light shielding plate 405 switches to the shielding or opening state under the drive of movable plate 1 402 , thus realizing dynamic shielding control of the laser path, effectively avoiding safety hazards caused by accidental laser radiation when the device is not started or in the non-detection state;

[0107] By cooperating with the second fixing cylinder 407 through the connecting rod 406, the second fixing cylinder 407 is driven to translate during the pushing process, so that the fixing rod 409 is close to the connecting block 4010. By cooperating with the fixing hole 4011 through the fixing rod 409, the fixing rod 409 enters the fixing hole 4011 under the pushing action of the second moving plate 408, thereby effectively locking the shading plate 405 in the open state, and preventing the shading structure from returning to its original position due to vibration or accidental collision. By cooperating with the second moving plate 408 and the second fixing cylinder 407, the second moving plate 408 is When sliding, the fixed rod 409 is driven to move in the fixed cylinder 2 407, and since the diameter of the movable plate 2 408 is larger than the diameter of the through hole at the bottom of the fixed cylinder 2 407, the fixed rod 409 can only move within a controlled range to prevent it from accidentally slipping, thereby achieving the controllability and safety of the fixing action; through the cooperation of the reset spring 403 and the movable plate 1 402, the light shielding plate 405 can automatically return to its position to cover the detection head 2 after unlocking, thereby achieving automatic recovery of the shielding function, reducing the user's operation steps, and being suitable for frequent start-stop or fast switching scenarios.

[0108] Please see the attached Figure 1 , Attachment Figure 2 , Attachment Figure 8 and attached Figure 9 The limiting mechanism 5 includes a fixed ring 501, and multiple groups of fastening springs 502 are provided on the inner side of the fixed ring 501. The end of each group of fastening springs 502 away from the fixed ring 501 is fixedly connected to the limit plate 503. The number of fastening springs 502 is at least two. The top of the Raman spectrometer main body 1 is fixedly connected to a multi-stage telescopic rod 506. The telescopic end of the multi-stage telescopic rod 506 is provided with a rotating shaft 505. The top of the rotating shaft 505 is fixedly connected to a connecting rod 504. The end of the connecting rod 504 away from the rotating shaft 505 is fixedly connected to the fixed ring 501.

[0109] Specifically, by cooperating with the fixing ring 501 and the fastening spring 502, the fastening spring 502 drives the limit plate 503 to elastically clamp the sample under stress, thereby achieving stable positioning of the bottle or bag to be tested, preventing it from shaking or displacement during the detection process, ensuring that the detection head 2 is always aligned with the target, and improving the accuracy of Raman spectrum acquisition; by cooperating with the multi-stage telescopic rod 506 and the rotating shaft 505, the multi-stage telescopic rod 506 can be telescoped and adjusted according to the height requirements of the sample, driving the rotating shaft 505 to move up or down, realizing the height adjustment function of the limit mechanism 5, ensuring that the limit plate 503 is always located directly above the detection head 2, and improving the adaptability of the device to samples of different sizes;

[0110] By cooperating with the connecting rod 504, the rotating shaft 505 drives the connecting rod 504 to drive the fixed ring 501 to rotate or deflect during the rotation process, further optimizing the alignment angle of the limiting mechanism 5, and realizing multi-angle precise positioning of the sample, which helps to enhance the vertical consistency between the sample and the laser beam and improves the stability and quality of the Raman signal.

[0111] Please see the attached Figure 2 , Attachment Figure 3 and attached Figure 10 The support mechanism 6 includes a mounting plate 601, which is fixedly connected to the rear side of the Raman spectrometer body 1. Two storage grooves 602 are provided on the outer side of the mounting plate 601. The top of the storage groove 602 is rotatably connected to a support plate 603. The inner wall of the support plate 603 is rotatably connected to a reinforcing rod 604. The end of the reinforcing rod 604 away from the support plate 603 is rotatably connected to the storage groove 602. An anti-slip pad 605 is provided at the bottom of the support plate 603.

[0112] Specifically, by cooperating with the mounting plate 601 and the storage groove 602, the storage groove 602 is embedded in the outer side of the mounting plate 601, which can accommodate the support plate 603 and the reinforcing rod 604 to be completely folded and stored in the non-working state, thereby realizing the hidden storage function of the support component, reducing the volume of the overall device, and improving the portability and simplicity of appearance; by cooperating with the support plate 603 and the reinforcing rod 604, the reinforcing rod 604 is driven to rotate synchronously during the unfolding process of the support plate 603, and the reinforcing rod 604 forms a triangular stable structure, which provides mechanical support for the support plate 603, so that it maintains structural stability and is not easy to tilt when bearing the weight of the device; by cooperating with the support plate 603 and the anti-slip pad 605, the anti-slip pad 605 is in full contact with the ground after the support plate 603 is unfolded, providing a high-friction support surface, effectively preventing the device from being displaced due to vibration or sliding during use, thereby realizing the anti-slip positioning function of the support mechanism.

[0113] Please see the attached Figure 11 The present invention also provides a method for using a portable Raman spectroscopy analysis device, comprising the following steps:

[0114] S1. By starting the Raman spectrometer body 1, the touch screen 3 loads the initialization interface. At this time, by pulling the connecting plate 404 to move away from the detection head 2, the light shielding plate 405 is driven to move away from the top of the detection head 2. When the connecting plate 404 moves in the direction away from the detection head 2, the reset spring 403 is compressed, and the connecting rod 406 is driven to move. When it moves to the connecting block 4010, the bottom of the fixing rod 409 contacts the top of the connecting block 4010, and the fixing rod 409 slides at the bottom through hole of the fixing cylinder 407, and drives the movable plate 2 408 to slide on the inner wall of the fixing cylinder 407. When the bottom of the fixing rod 409 contacts the fixing hole 4011, it is stuck in the fixing hole 4011, thereby fixing the light shielding plate 405 to prevent it from moving to the top of the detection head 2;

[0115] S2. Pull the support plate 603 away from the main body 1 of the Raman spectrometer to rotate the support plate 603 and adjust the support angle of the reinforcing rod 604 until the anti-slip pad 605 contacts the support surface, so that the main body 1 of the Raman spectrometer is placed.

[0116] S3. Pull the multi-stage telescopic rod 506 to adjust the height of the fixing ring 501. Then, rotate the fixing ring 501 to adjust the position of the limit block 502 via the rotating shaft 505 so that it moves above the detection head 2. Place the bottle or bag containing the object to be tested between the multiple limit plates 503. Under the action of the fastening spring 502, the bottle or bag containing the object to be tested is fixed so that it is fixed on the top of the detection head 2.

[0117] S4, then input the test parameters through the touch screen 3;

[0118] S5, the data acquisition control module receives the parameters, controls the detection head 2 to emit laser and synchronously collects the original spectrum data, and transmits it to the spectrum analysis module;

[0119] S6, the spectrum analysis module performs baseline correction, denoising, peak identification and component comparison to generate analysis results;

[0120] S7, the report generation and export module integrates the test parameters, spectra and analysis results to generate a test report;

[0121] S8. Select Wi-Fi or Bluetooth protocol to export the report via touch screen 3;

[0122] S9. The data management module stores the Raman spectral raw data and analysis results in the local database and synchronizes them with the cloud.

[0123] Specifically, S1, start the Raman spectrometer body 1, the touch screen 3 enters the initialization interface, and after the system completes the basic parameter loading and module self-test, it enters the standby state; at this time, the operator pulls the connecting plate 404 to slide in the direction away from the detection head 2, and the light shielding plate 405 moves outward accordingly, gradually making way for the optical output path of the detection head 2; during the movement of the connecting plate 404, the reset spring 403 is compressed to store energy, and at the same time drives the connecting rod 406 to slip. When the connecting rod 406 moves to the position above the connecting block 4010, the bottom of the fixed rod 409 touches the top of the connecting block 4010 and enters the bottom through hole of the fixed cylinder 407, while driving the movable plate 408 to slide along the inner wall of the fixed cylinder 407, and finally when the bottom end of the fixed rod 409 is aligned with the fixed hole 4011, it automatically snaps in, thereby completing the effective locking of the light shielding plate 405.

[0124] S2. Place the Raman spectrometer body 1 at the target detection position. Pull the support plate 603 to expand away from the analyzer body 1. The support plate 603 rotates, and the reinforcing rod 604 opens in conjunction with it, forming a triangular support structure with the support plate 603 and the storage slot 602. When the anti-slip pad 605 at the bottom of the support plate 603 contacts the ground or table support surface, the entire structure enters a stable state, ensuring the stability and shock resistance of the device during use, and is suitable for a variety of indoor and outdoor working environments.

[0125] S3. According to the height of the sample to be tested, manually pull the multi-stage telescopic rod 506 to adjust its extension, driving the fixed ring 501 to rise or fall to the appropriate height; then, rotate the fixed ring 501 so that it drives the limit block 502 through the rotating shaft 505 to adjust to just above the detection head 2; at this time, place the bottle body or sealed bag containing the sample between the multiple limit plates 503, and under the elastic force of the fastening spring 502, the limit plate 503 automatically clamps the sample to achieve fast and stable positioning of the sample, ensuring that the sample is always in the center area of the laser irradiation focus, thereby improving the accuracy of analysis.

[0126] S4. Set the detection parameters through the touch screen 3, including laser power, integration time, spectral range, average number of times, etc.; the system prepares the corresponding module according to the input parameters and enters the test state to ensure that the detection process meets the test requirements of the specific sample.

[0127] S5. After receiving the detection parameters, the data acquisition control module starts the detection head 2 to emit laser according to the set conditions, exciting the sample to generate Raman scattering signals. The detection system synchronously collects the original spectral data and transmits it to the spectrum analysis module in real time to ensure the timeliness and accuracy of data acquisition.

[0128] S6. The spectrum analysis module performs baseline correction, noise filtering, characteristic peak extraction and component comparison on the received raw spectral data in sequence, identifies the main chemical components in the sample based on the preset algorithm model, generates qualitative or quantitative analysis results, and provides data support for subsequent output reports.

[0129] S7. The report generation and export module integrates the test parameters, processed spectral maps and analysis results to build a standardized test report template, automatically fills in the data content and generates visual charts, making the test results clearer and more intuitive, suitable for viewing, sharing and archiving in different scenarios.

[0130] S8. The user operates through the touch screen 3 interface, selects Wi-Fi or Bluetooth wireless transmission protocol, and exports the test report to a smart terminal, computer or other device to achieve rapid sharing of on-site test results or remote diagnosis, thereby improving data interaction efficiency.

[0131] S9, the data management module synchronously stores the collected Raman spectral raw data and corresponding analysis results in the local database, and can automatically upload them to the cloud server according to user settings, realizing centralized data management, long-term backup and cross-device access, facilitating historical data tracing and sample comparative analysis.

[0132] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable Raman spectroscopy analysis device and method of use, characterized in that: include: A Raman spectrometer main body (1), a detection head (2) is installed on one side of the top of the Raman spectrometer main body (1), and a touch screen (3) is installed on the front side of the Raman spectrometer main body (1); A light shielding mechanism (4), the light shielding mechanism (4) being used to prevent laser light from being accidentally emitted from the detection head (2) when the detection head (2) is not in a normal working state; A limiting mechanism (5), the limiting mechanism (5) is used to fix the object to be detected; A support mechanism (6), wherein the support mechanism (6) is a foldable or retractable support structure, and is used to provide stable support for the Raman spectrometer main body (1) when it is in use or in an idle state; Central control system, the central control system is used to uniformly manage and control various functional modules.

2. A portable Raman spectroscopy analysis device and method of use according to claim 1, characterized in that: The central control system includes: A touch screen module, connected to the touch screen (3), for displaying an operation interface and receiving user input, and for setting and adjusting parameters such as laser power, integration time, and acquisition mode required for Raman spectrum detection; The data acquisition control module is used to control the laser emission of the detection head (2) and the acquisition of the Raman spectrum raw data according to the parameters set by the parameter setting module, and transmit the Raman spectrum raw data to the analysis module: The spectrum analysis module performs baseline correction, denoising, peak identification, and component comparison analysis on the collected Raman spectrum raw data and generates analysis results; The report generation and export module generates a test report containing test parameters, graphs, and analysis results based on the analysis results of the graph analysis module, and exports it via Wi-Fi or Bluetooth: The data management module is used to automatically classify and store Raman spectroscopy raw data and analysis results, associate detection parameters and ensure data reproducibility, and supports local and cloud synchronization and multi-level permission management; The power module is connected to the touch display module, parameter setting module, data acquisition control module, graph analysis module, report generation and export module, data management module and power module to provide stable working power.

3. A portable Raman spectroscopy analysis device and method of use according to claim 2, characterized in that: The data acquisition control module includes: The parameter receiving unit obtains the laser power, integration time and acquisition mode parameters of the parameter setting module; A laser control unit for adjusting the intensity and frequency of laser emission from the detection head (2); Data acquisition unit, which performs Raman spectroscopy raw data acquisition and preliminary verification; Transmission processing unit, which performs format standardization and cache management on raw data; The status monitoring unit provides real-time feedback on laser energy fluctuations and data collection interruption risks.

4. A portable Raman spectroscopy analysis device and method of use according to claim 2, characterized in that: The spectrum analysis module includes a baseline correction module, a noise filtering module, a peak location module, a component comparison module and a result integration module, which sequentially performs baseline drift correction, high-frequency noise filtering, characteristic peak coordinate extraction, chemical composition matching and analysis result summary on the Raman spectrum raw data.

5. A portable Raman spectroscopy analysis device and method of use according to claim 2, characterized in that: The report generation and export module includes: Data integration module, which performs the correlation between detection parameters and analysis results; Template generation module to build a standardized reporting framework; Format conversion unit, completes PDF / Excel format conversion; Export management module, adapted to Wi-Fi / Bluetooth protocol export; Verification module, performs data integrity verification.

6. A portable Raman spectroscopy analysis device and method of use according to claim 1, characterized in that: The shading mechanism (4) includes a fixed cylinder (401), which is fixedly connected to the top of the Raman spectrometer body (1); the inner wall of the fixed cylinder (401) is slidably connected to a movable plate (402); a return spring (403) is provided between the movable plate (402) and the fixed cylinder (401); the top of the movable plate (402) is fixedly connected to a connecting plate (404); a side of the connecting plate (404) close to the detection head (2) is fixedly connected to a shading plate (405); and a locking component is provided on the outside of the connecting plate (404).

7. A portable Raman spectroscopy analysis device and method of use according to claim 6, characterized in that: The locking assembly includes two connecting rods (406), and the two connecting rods (406) are fixedly connected to the outer sides of the connecting plate (404) respectively. The bottom of the connecting rod (406) is fixedly connected to the fixed cylinder 2 (407), and the bottom through hole of the fixed cylinder 2 (407) is slidably connected to the fixing rod (409). The outer sides of the fixed cylinder 1 (401) are fixedly connected to the connecting blocks (4010), and the inner wall of the connecting block (4010) is provided with a fixing hole (4011). The fixing rod (409) is plugged into the fixing hole (4011). The top of the fixing rod (409) is fixedly connected to the movable plate 2 (408), and the movable plate 2 (408) is slidably connected to the inner wall of the fixed cylinder 2 (407). The diameter of the movable plate 2 (408) is larger than the diameter of the bottom through hole of the fixed cylinder 2 (407).

8. The portable Raman spectroscopy analysis device and method of use according to claim 1, characterized in that: The limiting mechanism (5) comprises a fixing ring (501), a plurality of groups of fastening springs (502) are arranged on the inner side of the fixing ring (501), one end of each group of fastening springs (502) away from the fixing ring (501) is fixedly connected to a limiting plate (503), and the number of the fastening springs (502) is at least two. The top of the Raman spectrometer body (1) is fixedly connected to a multi-stage telescopic rod (506), the telescopic end of the multi-stage telescopic rod (506) is provided with a rotating shaft (505), the top of the rotating shaft (505) is fixedly connected to a connecting rod (504), and the end of the connecting rod (504) away from the rotating shaft (505) is fixedly connected to the fixing ring (501).

9. The portable Raman spectroscopy analysis device and method of use according to claim 1, characterized in that: The support mechanism (6) comprises a mounting plate (601), wherein the mounting plate (601) is fixedly connected to the rear side of the Raman spectrometer body (1), and two receiving grooves (602) are provided on the outer side of the mounting plate (601), the top of the receiving groove (602) is rotatably connected to a support plate (603), the inner wall of the support plate (603) is rotatably connected to a reinforcing rod (604), and one end of the reinforcing rod (604) away from the support plate (603) is rotatably connected to the receiving groove (602), and the bottom of the support plate (603) is provided with an anti-slip pad (605).

10. A method for using a portable Raman spectroscopic analysis device, according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. By starting the Raman spectrometer body (1), the touch screen (3) loads the initialization interface. At this time, by pulling the connecting plate (404) to move away from the detection head (2), the light shielding plate (405) moves away from the top of the detection head (2). When the connecting plate (404) moves away from the detection head (2), the reset spring (403) is compressed and the connecting rod (406) is driven to move. When it moves to the connecting block (4010), The bottom of the fixing rod (409) contacts the top of the connecting block (4010), and the fixing rod (409) slides at the bottom through hole of the second fixing cylinder (407), and drives the second moving plate (408) to slide on the inner wall of the second fixing cylinder (407). When the bottom of the fixing rod (409) contacts the fixing hole (4011), it is stuck in the fixing hole (4011), thereby fixing the light shielding plate (405) to prevent it from moving to the top of the detection head (2); S2. Pull the support plate (603) away from the Raman spectrometer main body (1) to rotate the support plate (603), and the linkage reinforcement rod (604) adjusts the support angle until the anti-slip pad (605) contacts the support surface, so that the Raman spectrometer main body (1) is placed; S3, by pulling the multi-stage telescopic rod (506), the fixing ring (501) is driven to adjust its height, and then the fixing ring (501) is rotated to adjust the position of the limit block (502) through the rotating shaft (505), so that it moves to the top of the detection head (2), and the bottle or bag containing the object to be detected is placed between the multiple limit plates (503), and under the action of the fastening spring (502), the bottle or bag containing the object to be detected is fixed so that it is fixed on the top of the detection head (2); S4, then input the test parameters through the touch screen (3); S5, the data acquisition control module receives the parameters, controls the detection head (2) to emit laser light and synchronously collects the original spectrum data, and transmits it to the spectrum analysis module; S6, the spectrum analysis module performs baseline correction, denoising, peak identification and component comparison to generate analysis results; S7, the report generation and export module integrates the test parameters, spectra and analysis results to generate a test report; S8. Select Wi-Fi or Bluetooth protocol to export the report via the touch screen (3); S9. The data management module stores the Raman spectral raw data and analysis results in the local database and synchronizes them with the cloud.

Images