Tongue image electronic observation mirror based on traditional Chinese medicine inspection diagnosis

Abstract

The invention belongs to the technical field of biomedical equipment, and relates to a tongue picture electronic observation mirror based on traditional Chinese medicine inspection diagnosis, which comprises a box body and a face fitting opening. A transparent flexible isolating membrane is arranged in the box body and divides the inner cavity into an equipment cavity and an inspection cavity, and the image acquisition and light supplement device is arranged in the protected equipment cavity. A ventilation and purification device is arranged in the examination cavity, and an environment sensor and a human body induction sensor are arranged. And the control unit automatically executes a cooperative control process of firstly starting the ventilation and purification device to disinfect and purify the examination cavity, then driving the automatic rolling and replacing device to update a section of isolating membrane after the environment reaches the standard and finally recovering the micro-positive pressure state in the examination cavity after each time of use according to a sensor signal. Through deep integration of physical isolation, dynamic purification and intelligent control, lasting protection of core equipment is achieved, cross infection is completely eradicated, and clearness and standards of tongue pictures are guaranteed under various use conditions.

Description

Technical Field

[0001] This invention relates to the field of biomedical equipment technology, specifically to an electronic observation mirror for tongue diagnosis based on traditional Chinese medicine. Background Technology

[0002] The electronic tongue observation mirror, also known as a tongue diagnosis instrument, is a digital diagnostic device for traditional Chinese medicine that combines modern optics and artificial intelligence technologies. It typically consists of a data acquisition module integrating a camera, a standardized light source, and a light shield, as well as a main unit with built-in analysis software. Its working principle involves acquiring high-definition images of the tongue under stable lighting conditions, then using image recognition and AI algorithms to quantitatively analyze the tongue's color, shape, coating, and other characteristics, comparing the results with a database to ultimately generate an objective tongue image analysis report.

[0003] Existing tongue image acquisition equipment suffers from significant hygiene and reliability deficiencies. During the examination, the patient's exhaled warm, moist air directly enters the equipment, causing condensation and mold growth on the surfaces of precision optical components such as camera lenses and supplemental lighting. This long-term corrosion and damage leads to blurred and distorted images. Furthermore, this contaminated air, remaining inside the equipment cavity, poses a potential medium for cross-infection if not thoroughly purified, seriously jeopardizing the safety of subsequent patients.

[0004] In view of this, the present invention proposes an electronic observation mirror for tongue appearance based on traditional Chinese medicine observation, which solves the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] An electronic tongue observation mirror based on traditional Chinese medicine visual diagnosis includes a housing with a fitting opening, an image acquisition device and a supplementary lighting device inside, and further includes: A transparent isolation membrane is disposed inside the housing and divides the inner cavity of the housing into a sealed and isolated inspection cavity and an equipment cavity, wherein the image acquisition device and the supplementary lighting device are located in the equipment cavity; An automatic roll-up device for driving the release film to move and update the portion covering the inside of the bonding opening; A ventilation and purification device is installed inside the examination chamber; and The control unit is configured to: upon receiving a single-use end signal, first control the ventilation and purification device to perform a purification operation on the inspection chamber, and based on the completion signal of the purification operation, subsequently control the automatic roll-up device to update a section of the isolation membrane to isolate the inspection chamber and the equipment chamber.

[0007] Preferably, the automatic winding device includes a supply reel, a recovery reel, and a drive motor. The separator membrane is in the form of a strip and is wound between two reels. The drive motor drives the recovery reel to rotate to wind up the used membrane segment, while the supply reel releases the membrane segment.

[0008] Preferably, an annular sealing airbag is provided on one side of the fitting opening. When the equipment is in use, the annular sealing airbag presses the isolation membrane against the opening channel to enhance the sealing between the inspection cavity and the equipment cavity.

[0009] Preferably, the ventilation and purification device includes an air intake module disposed at the upper part of the inspection cavity and an exhaust module disposed at the lower part. The air intake module is provided with an air filter and an air intake fan, and the exhaust module is provided with an exhaust fan and an exhaust gas purifier. The ventilation and purification device also includes an ultraviolet disinfection lamp installed inside the inspection chamber.

[0010] Preferably, the control unit is connected to an environmental sensor disposed in the inspection chamber, and the control unit determines whether the purification operation has reached a preset standard based on the signal fed back by the environmental sensor and generates the completion signal.

[0011] Preferably, the isolation film is an optically transparent multilayer composite structure, including a transparent substrate layer in the middle, an antistatic coating on one side of the device cavity, and an antibacterial coating on one side of the inspection cavity.

[0012] Preferably, the control unit is also connected to a human body sensor located near the fitting opening, and the single-use end signal is generated by the human body sensor after detecting that the user's head has left.

[0013] Preferably, the supply reel and the recycling reel are detachably installed in the slots on the side wall of the housing. An indicator light connected to the control unit is provided on the outside of the housing. When the isolation membrane is about to run out, the control unit controls the indicator light to issue a replacement reminder.

[0014] Preferably, the environmental sensor includes a humidity sensor, and the control unit is further configured to: monitor the humidity value inside the inspection cavity in real time during image acquisition; and control the automatic roll-up device to immediately update a section of the isolation membrane when the humidity value exceeds a preset fogging risk threshold.

[0015] Preferably, the control unit is further configured to: pre-adjust the illumination parameters of the supplementary lighting device during subsequent image acquisition based on the environmental parameters fed back by the environmental sensor when performing the purification operation; and / or use the environmental parameters as input variables to perform environmental factor compensation on the tongue image acquired by the image acquisition device during image processing.

[0016] The beneficial effects of this invention are: This invention uses an automatically replaceable optically transparent insulating membrane to divide the internal cavity of the device into a clean equipment side and a patient examination side. A ventilation and purification system is integrated into the examination side, with a control unit intelligently executing a process of first deeply purifying the space, then replacing the insulating membrane, and finally restoring micro-positive pressure protection. This not only completely isolates the precision optical components from contamination and corrosion by the patient's exhaled gases, but also effectively prevents image blurring caused by fogging on the membrane's inner surface during the examination through active airflow management and real-time environmental monitoring. The entire system achieves a standardized examination environment of one person, one membrane, and one clean space, eliminating the risk of cross-infection while ensuring the persistent clarity and data comparability of tongue image acquisition. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in: Figure 1 A schematic diagram of the overall structure of an electronic tongue observation mirror based on traditional Chinese medicine's visual diagnosis. Figure 2 This is a schematic diagram of the internal connection structure of the enclosure; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the connection structure of the automatic winding and changing device; Figure 5 This is a schematic diagram of the connection structure between the annular sealing airbag, the isolation membrane, and the box body. Figure 6 This is a schematic diagram of the connection structure of the isolation membrane; Figure 7 This is a flowchart of the control logic of the present invention.

[0019] In the picture: 1. Enclosure; 11. Inspection chamber; 12. Equipment chamber; 2. Fitting joint; 3. Image acquisition device; 4. Fill light device; 5. Separating membrane; 51. Antistatic coating; 52. Transparent substrate layer; 53. Antibacterial coating; 6. Automatic winding changer; 61. Supply reel; 62. Recycle reel; 63. Drive motor; 64. Opening channel; 65. Slot; 7. Ventilation and purification device; 71. Air intake module; 711. Air filter; 712. Air intake fan; 72. Exhaust module; 721. Exhaust fan; 722. Waste gas purifier; 73. Ultraviolet disinfection lamp; 8. Control unit; 9. Annular sealing airbag; 10. Environmental sensor; 88. Human body sensor; 99. Indicator light. Detailed Implementation

[0020] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] Example: like Figures 1-7 As shown, an electronic tongue observation mirror based on traditional Chinese medicine visual diagnosis includes a housing 1, which has a fitting opening 2. Inside the housing 1 are an image acquisition device 3 and a supplementary lighting device 4. It also includes: A transparent isolation membrane 5 is set inside the housing 1 and divides the inner cavity of the housing 1 into a sealed and isolated inspection cavity 11 and an equipment cavity 12. The image acquisition device 3 and the supplementary lighting device 4 are located inside the equipment cavity 12. Automatic roll-up device 6 for driving the release liner 5 to move and update the portion covering the inside of the bonding opening 2; Ventilation and purification device 7 installed inside inspection chamber 11; and The control unit 8 is configured to: upon receiving a single-use end signal, first control the ventilation and purification device 7 to perform a purification operation on the inspection chamber 11, and based on the completion signal of the purification operation, then control the automatic roll-up device 6 to update a section of the isolation membrane 5 to isolate the inspection chamber 11 and the equipment chamber 12.

[0022] The front of the housing 1 has a fitting opening 2 for the patient's face, the shape of which conforms to the contours of the human face. The interior of the housing 1 is divided into two independent chambers by a transparent insulating membrane 5: an examination chamber 11 closer to the patient and an equipment chamber 12 housing the image acquisition device. The image acquisition device 3 and the ring-shaped supplementary lighting device 4 are both installed in the equipment chamber 12, directly facing the insulating membrane 5 and the fitting opening 2 behind it. The insulating membrane 5 is driven by an automatic rewinding device 6 and can be moved and updated. An air purification device 7 is located inside the examination chamber 11. All these components are connected to and controlled by a control unit 8 located within the housing 1.

[0023] When a patient uses the device, they place their face against the insertion port 2. After the patient extends their tongue, the control unit 8 controls the supplementary lighting device 4 to provide standard illumination and triggers the image acquisition device 3 to capture an image of the tongue. After use, the control unit 8 initiates a cleaning process: First, the ventilation and purification device 7 is activated to force ventilation, filter, and disinfect the examination chamber 11, removing residual droplets, aerosols, and moisture. This step resets the entire examination space to a clean environment. After purification, the control unit 8 instructs the automatic rewinding device 6 to recycle the used membrane segment and lay a new, sterile isolation membrane 5 flat inside the insertion port 2, providing a fresh, clean examination space for the next patient. This solves the dual problems of internal device protection and cross-infection between patients, and its hygiene protection effect is far superior to simply replacing the contact pad or simple ventilation.

[0024] Specifically, the automatic winding device 6 includes a supply roll 61, a recovery roll 62, and a drive motor 63. The separator 5 is in the form of a strip and is wound between the two rolls. The drive motor 63 drives the recovery roll 62 to rotate to wind up the used membrane segment, while the supply roll 61 releases the membrane segment.

[0025] An annular sealing airbag 9 is provided on one side of the fitting port 2. When the equipment is in use, the annular sealing airbag 9 presses the isolation membrane 5 onto the opening channel 64 to enhance the sealing between the inspection chamber 11 and the equipment chamber 12.

[0026] The automatic roll-up device 6 includes a supply roll 61 and a take-up roll 62 arranged in parallel, both driven by a drive motor 63. The isolation membrane 5 is a rolled strip structure, with its starting end fixed to the take-up roll 62. The membrane strip is pulled out from the supply roll 61, passes through a smooth opening channel 64, and finally flatly covers one side of the sealing port 2. When the equipment is in standby mode, the control unit 8 controls the annular sealing airbag 9 to inflate and expand, pressing the isolation membrane 5 tightly against the end face of the opening channel 64 to form an airtight seal, ensuring that the inspection chamber 11 and the equipment chamber 12 are completely isolated when not in use, preventing the spread of contaminants or moisture on the equipment side.

[0027] Specifically, the ventilation and purification device 7 includes an air intake module 71 located at the upper part of the inspection chamber 11 and an exhaust module 72 located at the lower part. The air intake module 71 is equipped with an air filter 711 and an air intake fan 712, and the exhaust module 72 is equipped with an exhaust fan 721 and an exhaust gas purifier 722. The ventilation and purification device 7 also includes an ultraviolet disinfection lamp 73 installed inside the inspection chamber 11.

[0028] The ventilation and purification device 7 adopts a vertical laminar flow design with top-supply and bottom-exhaust. An air intake module 71, containing an air filter 711 and an intake fan 712, is located on the upper wall of the inspection chamber 11; an exhaust module 72, containing an exhaust fan 721, is located on the lower wall of the inspection chamber 11. Additionally, ultraviolet disinfection lamps 73 are installed on the side walls of the inspection chamber 11. During operation, the control unit 8 simultaneously activates the intake fan 712 and the exhaust fan 721. External air, filtered by the air filter 711, is supplied to the inspection chamber 11 from above, while contaminated air is forcibly exhausted from below. This system can quickly and efficiently replace the air within the chamber and uses airflow organization to carry any potentially settling particles towards the exhaust port. During or after ventilation, the ultraviolet disinfection lamps 73 can be activated for a period of time, effectively using ultraviolet light to biochemically sterilize the inner walls of the chamber and the air, further killing pathogenic microorganisms.

[0029] Specifically, the control unit 8 is connected to the environmental sensor 10 installed in the inspection chamber 11. The control unit 8 determines whether the purification operation has reached the preset standard based on the signal fed back by the environmental sensor 10 and generates a completion signal.

[0030] The control unit 8 is also connected to a human body sensor 88 located near the fitting port 2. The single-use end signal is generated by the human body sensor 88 after detecting that the user's head has left the fitting port 2.

[0031] The environmental sensor 10 includes a humidity sensor, and the control unit 8 is also configured to: monitor the humidity value inside the inspection cavity 11 in real time during image acquisition; and control the automatic roll-up device 6 to immediately update a section of the isolation membrane 5 when the humidity value exceeds the preset fogging risk threshold.

[0032] An environmental sensor 10, including at least a humidity sensor, is integrated inside the inspection cavity 11. A human body sensor 88 is installed near the fitting port 2.

[0033] When the human body sensor 88 detects a user approaching and firmly adhering to the body, the control unit 8 determines that a single check has begun. When the user's head is detected to have moved away, a single use end signal is generated, automatically triggering the cleaning process. This achieves fully contactless automatic control, avoiding the risk of contamination associated with manual operation. During the ventilation and purification process, the control unit 8 reads data from the environmental sensor 10 in real time. The purification operation continues until the humidity value drops to the drying threshold and the particulate matter concentration drops below the cleaning threshold. Only then does the control unit 8 determine that the purification operation is complete and generate a completion signal. This enables the purification process to be adaptive, ensuring that the inspection chamber 11 is restored to a stable and clean standard environment, avoiding insufficient purification or energy waste that may be caused by a fixed time mode. During image acquisition, the control unit 8 monitors humidity changes within the cavity 11 in real time via the environmental sensor 10. When a rapid increase in humidity within the cavity due to prolonged breathing by the patient is detected, exceeding a preset condensation risk threshold, the control unit 8 immediately controls the automatic rewinding device 6 to replace a section of the isolation membrane 5. This proactively prevents image blurring caused by condensation on the membrane's inner surface. It ensures clear tongue images are obtained under any operating conditions, improving the device's reliability.

[0034] Specifically, the isolation membrane 5 is an optically transparent multilayer composite structure, including a transparent substrate layer 52 in the middle, an antistatic coating 51 on one side of the equipment cavity 12, and an antibacterial coating 53 on one side of the inspection cavity 11.

[0035] The isolation membrane 5 employs an optically transparent multilayer composite structure specifically designed for this device. (Reference) Figure 6 The structure, from top to bottom (from the equipment cavity 12 towards the inspection cavity 11), includes the following: The first layer is a uniformly coated antistatic coating 51. This coating is prepared using a transparent conductive polymer material (such as PEDOT:PSS) and is adhered to the substrate through a coating process. The second layer is an optical-grade transparent substrate layer 52, made of PET (polyethylene terephthalate) film with high light transmittance (visible light transmittance >92%), low haze, and low birefringence. This layer provides the main mechanical strength and optical properties of the separator 5. The third layer is an antibacterial coating 53. This coating is loaded with nano-silver ions or quaternary ammonium salt antibacterial agents through impregnation or spraying processes, and is cured into a film using transparent resin as a carrier.

[0036] During equipment operation, the five layers of the composite structure isolation membrane work synergistically: Optical protection: The transparent substrate layer 52 ensures that the light emitted from the supplementary lighting device 4 and the reflected light from the tongue image can pass through with extremely low loss and distortion and be captured by the image acquisition device 3, which is a prerequisite for achieving high-fidelity tongue image acquisition. Equipment protection: The antistatic coating 51 can continuously and effectively dissipate static charges generated in the equipment cavity 12 due to air flow or the equipment itself. It eliminates the problem of dust particles accumulating on the equipment side surface of the membrane due to electrostatic adsorption. By constantly replacing the isolation membrane 5, dust particles can be effectively removed, keeping the observation window clean for a long time. This avoids the gradual decline in image quality caused by dust obstruction or scattering, and reduces the maintenance needs inside the equipment. Hygiene Enhancement: The antimicrobial coating 53 faces the examination chamber 11 directly. Even after the ventilation and purification device 7 has completed space purification, if microorganisms adhere to the membrane surface through contact or in very small amounts as aerosols, this coating can kill or inhibit their reproduction through contact. It provides a passive, continuous biological barrier, forming a dual hygiene guarantee with active ventilation and purification, reducing the potential risk of microbial survival on the membrane surface and causing cross-infection.

[0037] Specifically, the supply reel 61 and the recycling reel 62 are detachably installed in the slot 65 on the side wall of the housing 1. The housing 1 is equipped with an indicator light 99 connected to the control unit 8. When the isolation membrane 5 is about to run out, the control unit 8 controls the indicator light 99 to issue a replacement reminder.

[0038] The control unit 8 is also configured to: pre-adjust the illumination parameters of the supplementary lighting device 4 during subsequent image acquisition based on the environmental parameters fed back by the environmental sensor 10 when performing the purification operation; and / or use the environmental parameters as input variables to compensate for environmental factors in the tongue image acquired by the image acquisition device 3 during image processing.

[0039] The supply reel 61 and the recycling reel 62 are detachably mounted in the slots 65 on the side wall of the housing 1. An indicator light 99 is provided on the exterior of the housing 1. The control unit 8 determines the remaining amount of the separating membrane 5 through calculation or sensors. When the remaining amount is insufficient, the control indicator light 99 issues a warning signal, facilitating timely replacement of the membrane roll and ensuring service continuity.

[0040] The isolation membrane 5 has a multi-layer composite structure, including a transparent substrate layer 52, an antistatic coating 51 located on one side of the equipment cavity 12, and an antibacterial coating 53 located on one side of the inspection cavity 11. The antistatic coating 51 prevents dust adsorption and maintains optical clarity; the antibacterial coating 53 directly inhibits bacterial growth and provides additional biological protection.

[0041] After performing the purification operation, the control unit 8 records the final stable parameters fed back by the environmental sensor 10. Before the next tongue image acquisition, the control unit 8 pre-adjusts the color temperature and brightness of the supplementary lighting device 4 based on these parameters to compensate for differences in the basic ambient light within the cavity, ensuring consistent lighting conditions for each image capture. During image processing, the algorithm uses the acquired environmental parameters to digitally compensate for the original tongue image. This eliminates errors introduced by specific environmental factors, resulting in more realistic and accurate image features for final analysis, thus improving the reliability of the diagnosis.

[0042] Furthermore, during image processing, the control unit 8 uses the environmental parameters to digitally compensate the acquired original tongue image to eliminate or reduce the imaging deviation introduced by specific environmental factors within the cavity at the moment of acquisition, ensuring that the image features used for analysis truly reflect the state of the tongue itself.

[0043] Specifically, the environmental factor compensation algorithm includes, but is not limited to, one or more of the following processes: Color Correction: Based on the real-time ambient light color temperature data collected by the environmental sensor 10, a color mapping relationship between the current lighting conditions and the standard D65 light source is established. The algorithm corrects the distortion of tongue and tongue coating color caused by the ambient light color temperature shift by adjusting the white balance and color matrix of the image, so that the color representation of the image is restored to the reference value under standard lighting, ensuring the comparability of tongue images collected at different times and under different environments.

[0044] Adaptive contrast and brightness enhancement: Based on ambient light intensity data within the cavity (which can be obtained from a light sensor or inferred from the average brightness of the image) and humidity data, the algorithm dynamically adjusts the global or local contrast and brightness of the image. For example, in a high-humidity environment, the image may appear slightly washed out and have reduced contrast due to light scattering. The compensation algorithm enhances texture details and color gradation through adaptive histogram equalization or Retinex-type algorithms, restoring the proper contrast.

[0045] Dehazing and Sharpness Compensation: When humidity sensor data indicates a risk of fogging at the moment of acquisition but the threshold for immediate membrane replacement has not been reached, the algorithm initiates dehazing preprocessing based on a physical imaging model. This process estimates the possible fog concentration using ambient humidity and temperature parameters, and reduces fog blur in the image by using dark channel priors or contrast maximization methods, thereby enhancing edge sharpness and texture information.

[0046] Noise Suppression: The algorithm adaptively selects the noise reduction intensity based on the equipment's operating status (such as whether the fan is working) and the airflow data inside the cavity. Light noise reduction is used for the first acquisition after purification or when the airflow is stable; if the acquisition is during the end of the ventilation period and there is weak turbulence inside the cavity, stronger temporal or spatial noise reduction filtering is used to suppress image noise that may be introduced by air disturbance.

[0047] Work process: Initial standby state: The device is in a low-power standby ready state. At this time, the control unit 8 has controlled the inflation of the annular sealing airbag 9, pressing the isolation membrane 5 tightly against the opening channel 64 inside the fitting port 2. Simultaneously, the control unit 8 starts the intake fan 712 of the ventilation and purification device 7 to run at low speed, continuously sending filtered clean air into the inspection chamber 11, while the exhaust fan 721 is turned off, thereby maintaining a stable micro-positive pressure environment inside the inspection chamber 11. This ensures that external contaminants cannot enter the cleaned inspection chamber 11 during standby, providing protection for the core imaging components (image acquisition device 3, supplementary lighting device 4) and providing a sterile environment for first-time use.

[0048] Patient examination stage: When the human body sensor 88 detects that the patient's face is in contact with the body, the control unit 8 first turns off the micro-positive pressure maintenance mode (the intake fan 712 is paused). After the patient is in position and extends their tongue, the control unit 8 activates the supplementary lighting device 4 to provide standardized illumination and controls the image acquisition device 3 to complete focusing and image capture. At the same time, the environmental sensor 10 continues to work to monitor changes in the intracavitary environment.

[0049] Cleaning and membrane replacement stage: Once the inspection is complete and the human body sensor 88 detects the patient's departure, it immediately sends a signal to the control unit 8, triggering the fully automated cleaning and membrane replacement process. This process is executed strictly according to sequential logic: Deep purification: Control unit 8 starts ventilation and purification device 7 at full speed. Intake fan 712 and exhaust fan 721 work together to form a powerful air exchange, quickly replacing the air in the cavity; at the same time, ultraviolet disinfection lamp 73 is activated to perform biochemical disinfection on the cavity surface and air; Environmental verification: The control unit 8 reads data from the environmental sensors 10 (such as humidity and particulate matter sensors) in real time until all parameters return to the preset cleanliness standard before determining that the purification operation is complete. Interface update: After purification is completed, the control unit 8 controls the annular sealing airbag 9 to release air to release the seal. The control unit 8 instructs the drive motor 63 of the automatic roll-changing device 6 to work, drive the recovery roll 62 to rotate, and roll up the used film segment. At the same time, the supply roll 61 releases a new film segment of the same length to cover the bonding port 2.

[0050] State Restoration: After membrane replacement, control unit 8 immediately inflates the annular sealing airbag 9 to re-tighten and seal the new membrane, and simultaneously resumes low-speed operation of the intake fan 712, rebuilding a micro-positive pressure clean state within the inspection chamber 11. The equipment returns to its initial standby state. This ensures that the next patient is provided not only with a completely new contact surface, but also with a thoroughly disinfected and positively pressure-protected, fully clean space, fundamentally eliminating the possibility of cross-infection.

[0051] Special trigger and maintenance notices: Throughout the entire work cycle, the system possesses intelligent judgment and response capabilities: Anti-fog trigger: During the patient examination, if the environmental sensor 10 detects that the humidity inside the cavity exceeds the fogging risk threshold (indicating that water vapor may condense on the inner surface of the isolation membrane 5), the control unit 8 will immediately suspend the examination process and prioritize triggering the automatic roll-up device 6 to replace a dry new isolation membrane 5, effectively ensuring clear imaging under any usage conditions and solving the problem of image quality fluctuations caused by differences in patient breathing. Maintenance Instructions: Control unit 8 continuously tracks the length of the separator membrane 5 in use. When the membrane roll supplying reel 61 is about to run out, control unit 8 will illuminate indicator light 99 on the outside of housing 1, providing a clear replacement reminder. This function ensures continuous equipment service. Image optimization: After each purification operation, the control unit 8 records the final environmental parameters (such as color temperature and humidity) and uses this data to pre-adjust the parameters of the supplementary lighting device 4 before the next shooting. At the same time, it performs compensation in the image processing algorithm. This linkage ensures that all tongue images are collected under consistent and optimal environmental conditions, which greatly improves the accuracy and comparability of subsequent AI analysis or doctor's interpretation.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic tongue observation mirror based on traditional Chinese medicine visual diagnosis, comprising a housing (1), wherein the housing (1) is provided with a fitting opening (2), and an image acquisition device (3) and a supplementary lighting device (4) are provided inside, characterized in that, Also includes: A transparent isolation membrane (5) is disposed inside the housing (1) and divides the inner cavity of the housing (1) into a sealed and isolated inspection cavity (11) and an equipment cavity (12). The image acquisition device (3) and the supplementary lighting device (4) are located inside the equipment cavity (12). An automatic roll-up device (6) is used to drive the release film (5) to move and update the portion of it covering the inside of the bonding opening (2). A ventilation and purification device (7) is installed inside the examination chamber (11); and The control unit (8) is configured to: upon receiving a single-use end signal, first control the ventilation and purification device (7) to perform a purification operation on the inspection chamber (11), and based on the completion signal of the purification operation, then control the automatic roll-up device (6) to update a section of the isolation membrane (5) to isolate the inspection chamber (11) and the equipment chamber (12).

2. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis as described in claim 1, characterized in that, The automatic roll-changing device (6) includes a supply roll (61), a take-up roll (62), and a drive motor (63). The separator (5) is a strip and is wound between the two rolls. The drive motor (63) drives the take-up roll (62) to rotate to take up the used film segment, while the supply roll (61) releases the film segment.

3. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 2, characterized in that, One side of the fitting opening (2) is provided with an annular sealing airbag (9). When the equipment is in use, the annular sealing airbag (9) presses the isolation membrane (5) onto the opening channel (64) to enhance the sealing between the inspection cavity (11) and the equipment cavity (12).

4. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 1, characterized in that, The ventilation and purification device (7) includes an air intake module (71) located at the upper part of the inspection chamber (11) and an exhaust module (72) located at the lower part. The air intake module (71) is provided with an air filter (711) and an air intake fan (712). The exhaust module (72) is provided with an exhaust fan (721) and an exhaust gas purifier (722). The ventilation and purification device (7) also includes an ultraviolet disinfection lamp (73) installed inside the inspection chamber (11).

5. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 1, characterized in that, The control unit (8) is connected to the environmental sensor (10) located in the inspection chamber (11). The control unit (8) determines whether the purification operation has reached the preset standard based on the signal fed back by the environmental sensor (10) and generates the completion signal.

6. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 1, characterized in that, The isolation membrane (5) is an optically transparent multilayer composite structure, including a transparent substrate layer (52) in the middle, an antistatic coating (51) on one side of the device cavity (12), and an antibacterial coating (53) on one side of the inspection cavity (11).

7. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 1, characterized in that, The control unit (8) is also connected to a human body sensor (88) located near the fitting port (2), and the single-use end signal is generated by the human body sensor (88) after detecting that the user's head has left.

8. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 2, characterized in that, The supply reel (61) and the recycling reel (62) are detachably installed in the slot (65) on the side wall of the housing (1). An indicator light (99) connected to the control unit (8) is provided on the outside of the housing (1). When the isolation membrane (5) is about to run out, the control unit (8) controls the indicator light (99) to issue a replacement prompt.

9. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 5, characterized in that, The environmental sensor (10) includes a humidity sensor, and the control unit (8) is also configured to: monitor the humidity value inside the inspection cavity (11) in real time during the image acquisition process; and control the automatic roll-up device (6) to immediately update a section of the isolation film (5) when the humidity value exceeds a preset fogging risk threshold.

10. The electronic tongue observation microscope based on traditional Chinese medicine visual diagnosis according to claim 5, characterized in that, The control unit (8) is also configured to: when performing the purification operation, pre-adjust the illumination parameters of the supplementary lighting device (4) during subsequent image acquisition based on the environmental parameters fed back by the environmental sensor (10); and / or use the environmental parameters as input variables to compensate for environmental factors in the tongue image acquired by the image acquisition device (3) during image processing.

Images