An intelligent ventilation traditional Chinese medicine fumigation system based on traditional Chinese medicine constitution recognition

Abstract

The application belongs to the technical field of TCM physiotherapy devices, and provides an intelligent ventilation traditional Chinese medicine fumigation and steaming system based on TCM constitution recognition.The system of the application comprises a fumigation and steaming cabin, a lying part, a steam generating device, multiple groups of sensors and a constitution recognition part, the constitution recognition part can collect user sign data and output constitution type signals through a TCM constitution classification model.The system is additionally provided with detachable sensor isolation protection parts, which physically isolate the sensors from the high-temperature steam and liquid medium in the cabin, avoid oil mist infiltration and blockage failure, and guarantee detection accuracy.The bearing surface of the lying part is integrated with a steam output assembly with multiple groups of nozzles, which can output steam from below the human body to form surface covering fumigation and steaming.The fumigation and steaming cabin is provided with a ventilation actuating mechanism, which can accurately adjust the ventilation volume and direction in the cabin according to the ventilation strategy corresponding to the user constitution.The application can realize individualized intelligent fumigation and steaming control for different user constitutions, has strong physiotherapy adaptability and safety, is durable, and has low operation and maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine physiotherapy equipment technology, specifically to an intelligent ventilation and herbal fumigation system based on traditional Chinese medicine constitution identification. Background Technology

[0002] Traditional Chinese medicine fumigation therapy, as an important component of external treatment methods in TCM, involves heating and vaporizing medicinal liquids, utilizing the warmth of the steam and the penetrating effect of the medicine to regulate the body. Lying-down TCM fumigation chambers are widely used due to their convenience and comfort.

[0003] However, existing reclining fumigation chambers have revealed three major problems during long-term operation. First, the high temperature and humidity inside the chamber, along with corrosive media such as organic acids and volatile oils from traditional Chinese medicine, cause sensors for temperature, pressure, liquid level, and VOCs to easily leak, scale, or become clogged in the breathable membrane, leading to short-term drift or even malfunction, severely affecting the reliability of environmental monitoring within the chamber. Second, existing fumigation chambers generally lack personalized treatment capabilities based on traditional Chinese medicine constitution identification. Even when constitution identification functions are included, the short lifespan of the aforementioned sensors in harsh environments and poor long-term data stability prevent them from providing continuous and accurate physiological and environmental parameters for the constitution identification algorithm, making it difficult to effectively implement personalized fumigation control. Third, the steam nozzles are almost entirely located on the side walls or top of the chamber, failing to effectively cover the core treatment areas such as the back and abdomen, resulting in low drug absorption efficiency; at the same time, the large-scale diffusion of steam easily leads to overflow, causing waste of medicine, slow heating, and the risk of burns from direct exposure to high-temperature steam.

[0004] Therefore, we propose a fumigation therapy chamber that can ensure the long-term stable operation of sensors in harsh environments to support intelligent regulation such as body constitution recognition, and can also achieve comprehensive, efficient and safe steam envelopment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent ventilation-based traditional Chinese medicine fumigation system based on TCM constitution identification, enabling comprehensive, efficient, and safe steam-enclosed TCM fumigation therapy.

[0006] This invention provides an intelligent ventilation-based traditional Chinese medicine fumigation system based on TCM constitution identification, comprising: Fumigation chamber; A reclining area, located inside the fumigation chamber, is used to support the human body; A steam generator is used to deliver traditional Chinese medicine steam into the fumigation chamber; Multiple sets of sensors are used to monitor environmental parameters inside the fumigation chamber; The constitution identification device is configured to acquire the user's vital sign data and output a constitution type signal based on a preset TCM constitution classification model. It also includes: at least one sensor isolation and protection unit, which is detachably mounted on the fumigation chamber or the lying position, wherein the sensor is encapsulated in the sensor isolation and protection unit to physically isolate the sensor from the medium environment inside the fumigation chamber; A steam output component is integrated on the support surface of the reclining part for supporting the human body. The steam output component includes multiple steam nozzles, which are connected to the steam generating device and are positioned towards the human body surface above the support surface to output steam from below the human body to form a covering. A ventilation actuator is installed on the fumigation chamber and connected to the ventilation control unit, used to adjust the ventilation volume and ventilation direction of the fumigation chamber according to the ventilation strategy signal.

[0007] Furthermore, the sensor isolation and protection unit includes a first type of isolation module and a second type of isolation module that can be selectively mounted. The first type of isolation module is configured to provide closed isolation for protecting the first type of sensors that do not need to come into contact with steam. The second type of isolation module is configured to provide breathable isolation for protecting the second type of sensors that need to come into contact with steam. In practical applications, dividing the sensor isolation and protection unit into a first type of closed isolation module and a second type of breathable isolation module allows sensors that do not need to come into contact with steam, such as temperature and pressure sensors, to receive complete airtight protection. Sensors that need to come into contact with gases, such as temperature and humidity sensors and VOC sensors, to receive effective protection while ensuring gas flow. This overcomes the shortcomings of a single protection structure that cannot adapt to the needs of different sensors. The standardized and interchangeable design of the two types of modules improves the versatility and flexibility of equipment production and maintenance, and reduces assembly and after-sales costs.

[0008] Furthermore, the first type of isolation module includes: an outer protective shell, at least its front end being a closed end; and a solid thermally conductive insulating medium layer, densely filling the space between the protective shell and the first type of sensing core embedded within it, to airtightly isolate the first type of sensing core from the external environment and transfer external temperature to the first type of sensing core through solid-state thermal conduction. The first type of isolation module, through the combination of the outer protective shell and the solid thermally conductive insulating medium layer, densely encapsulates the sensing core, forming a permanent airtight isolation interface, completely avoiding problems such as water leakage due to sealing aging, temperature drift caused by probe scaling, and false pressure alarms. Simultaneously, the solid medium layer transfers external temperature through solid-state thermal conduction, ensuring both airtight protection and good temperature measurement response speed and accuracy.

[0009] Furthermore, the solid thermally conductive insulating medium layer is a thermally conductive epoxy potting layer. In practical applications, the solid thermally conductive insulating medium layer is limited to a thermally conductive epoxy potting layer, which combines high thermal conductivity, excellent electrical insulation, and chemical corrosion resistance. It can maintain stable performance under long-term high temperature, high humidity, and corrosive media conditions, and the vacuum potting process is mature, making it easy to ensure consistency and density in mass production.

[0010] Furthermore, the second type of isolation module includes: a protective shell with a permeable passage for gas flow inside; and a composite isolation filter membrane assembly disposed in the permeable passage, which allows gas molecules to pass through while blocking liquid water and oil mist. This ensures that external gas entering through the permeable passage is purified by the composite isolation filter membrane assembly before contacting the second type of sensor core embedded in the protective shell. In practical applications, this second type of isolation module, through the cooperation of the permeable passage and the composite isolation filter membrane assembly, allows external gas to undergo selective filtration before contacting the sensor core. It allows gas molecules to pass through to ensure detection functionality while effectively blocking the penetration of liquid condensate and volatile oil mist. This overcomes the short-term failure of single-layer waterproof and breathable membranes due to oil mist wetting and clogging, ensuring long-term stable contact of the sensor with clean gas, preventing data drift, and significantly extending the maintenance cycle.

[0011] Furthermore, the composite isolation filter membrane assembly is composed of an oil-absorbing material layer and a hydrophobic and breathable material layer stacked together; and the composite isolation filter membrane assembly is an independently replaceable unit. In practical applications, this composite isolation filter membrane assembly adopts a structure combining an oil-absorbing material layer and a hydrophobic and breathable material layer. The hydrophobic layer blocks liquid water, while the oil-absorbing layer captures volatile oil mist. The two layers complement each other, preventing a single membrane from losing its breathability due to wetting by oily substances. Designing the filter membrane assembly as an independently replaceable consumable unit, it only needs to be replaced individually after reaching its lifespan, significantly reducing the material costs and operational difficulty of daily maintenance.

[0012] Furthermore, the front end of the protective shell is a closed flow guide cap to block the direct impact of the medium; the air inlet of the venting passage is located on the side of the flow guide cap; wherein, the flow guide cap is conical, the venting passage is an inner conical section, and is provided with a flexible flow guide tube to block liquid water and oil mist; the composite isolation filter membrane assembly is located within the inner conical section of the venting passage and is evenly distributed along the axis. In practical applications, setting the front end of the protective shell as a closed flow guide cap and the air inlet of the venting passage located on the side prevents high-temperature steam and liquid medicine from directly impacting the internal filter membrane. The airflow enters after being deflected, weakening the scouring and thermal shock of the steam jet on the filter membrane, reducing the accumulation of liquid medicine, and extending the effective working life of the filter membrane under harsh working conditions.

[0013] Meanwhile, the composite isolation filter membrane assembly with its axis evenly distributed can effectively reduce the entry of water vapor and oil vapor, thus improving the actual service life of the sensor.

[0014] Furthermore, the steam output assembly also includes: A steam distribution chamber is located inside the reclining part. Its air inlet is connected to the steam generating device, and its air outlet is connected to a plurality of steam nozzles respectively, for uniformly distributing the steam from the steam generating device to each of the steam nozzles. A guide plate is provided on the side near the reclining part to guide the steam flowing out of the steam nozzle.

[0015] Furthermore, the ventilation control unit is configured as follows: When the constitution type signal indicates Yang deficiency, a low ventilation strategy signal is generated; When the constitution type signal indicates a hot and humid constitution, a high ventilation strategy signal is generated; When the constitution type signal indicates Qi deficiency, an intermittent ventilation strategy signal is generated.

[0016] In practical applications, this design achieves closed-loop automation from identification to control, making up for the shortcomings of the existing extensive control of fumigation chambers, and enabling the TCM principle of "treatment according to individual conditions" to be truly implemented in the equipment.

[0017] As can be seen from the above technical solution, the beneficial effects of the intelligent ventilation and herbal fumigation system based on TCM constitution identification provided by the present invention are as follows: (1) In practical applications, by encapsulating the sensor in a detachable isolation and protection section, physical isolation from the high temperature and humidity corrosive medium environment inside the chamber is achieved, eliminating the detection failure caused by water seepage, scaling and filter membrane blockage from the root, and ensuring long-term stable and reliable monitoring data.

[0018] (2) At the same time, by integrating the steam output component into the bearing surface of the lying part, the steam is output from bottom to top and adheres to the body surface, which significantly increases the contact area between the steam and the core physiotherapy areas such as the back and waist and abdomen, and improves the drug absorption efficiency; the steam is concentrated around the human body, reducing ineffective diffusion and overflow loss, reducing drug consumption and heating energy consumption; at the same time, it avoids high temperature steam directly hitting the skin, eliminating the risk of burns.

[0019] (3) It also uses a body constitution identification device to output body constitution type signal, providing a basis for personalized regulation. The long-term accuracy of sensor data ensures the continuous effectiveness of body constitution identification and regulation decisions. Its ventilation actuator adjusts ventilation according to the strategy signal, so that users with different body constitutions can obtain a differentiated physiotherapy environment. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 A three-dimensional schematic diagram of an intelligent ventilation and traditional Chinese medicine fumigation system based on TCM constitution identification, provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the left-side structure of an intelligent ventilation and traditional Chinese medicine fumigation system based on TCM constitution identification, provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the main structure of an intelligent ventilation and traditional Chinese medicine fumigation system based on TCM constitution identification, provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the steam nozzle and steam distribution chamber in this invention; Figure 5 This is a schematic diagram of the structure of the first type of isolation module in this invention; Figure 6 This is a schematic diagram of the structure of the second type of isolation module in this invention; Figure 7 This is a schematic diagram of the composite isolation filter membrane assembly in the second type of isolation module of the present invention; Figure 8 This is a schematic diagram of the protective isolation structure of the first type of isolation module in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the protective isolation structure of the second type of isolation module in Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the body constitution identification device in three embodiments of the present invention; Figure label: Fumigation chamber 1, lying area 2, door 3, steam output assembly 4, sensor isolation and protection unit 5, steam generator 10, physical condition identification component 20, bearing surface 21, sensor 30, steam nozzle 41, steam distribution chamber 42, guide plate 43, reserved installation position 51, first type isolation module 501, second type isolation module 502, ventilation actuator 60, variable frequency speed control fan 61, ventilation control unit 70, processing unit 201, outer protective shell 511, solid thermally conductive isolation medium layer 512, positioning frame 513, flow guide groove 511a, conical baffle platform 511b, protective shell 521, composite isolation filter membrane assembly 522, air passage 523, flow guide cap 524, flexible flow guide pipe 525, oil-absorbing material layer 522a, hydrophobic and breathable material layer 522b, primary coarse filter layer 526. Detailed Implementation

[0022] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0023] The basic implementation examples are as follows: Figures 1 to 10 As shown: Example 1 This embodiment provides an intelligent ventilation herbal fumigation system based on TCM constitution identification. The system integrates sensor isolation and protection, bed-embedded steam output, TCM constitution identification and intelligent ventilation control functions to solve the core technical problems of existing herbal fumigation chambers, such as sensor damage in harsh environments, poor fumigation coverage, and lack of personalized physiotherapy control.

[0024] See Figures 1 to 7 The traditional Chinese medicine fumigation system in this embodiment includes a fumigation chamber 1, a lying position 2, a steam generator 10, multiple sets of sensors 30, a constitution identification component 20, a sensor isolation and protection unit 5, a steam output component 4, and a ventilation actuator 60.

[0025] The fumigation chamber 1 is a cavity structure that forms a sealed fumigation space. It can be made of corrosion-resistant materials such as stainless steel, engineering plastics, or fiberglass. The upper part of the fumigation chamber 1 is equipped with an openable and closable door 3. When the door 3 is closed, it forms a sealed space together with the fumigation chamber 1 to prevent the leakage of Chinese medicine vapor.

[0026] The reclining section 2 is located inside the fumigation chamber 1 and is used to support the user lying flat. The upper surface of the reclining section 2 is the support surface 21 for the human body, and its contour can be designed according to ergonomics to improve the comfort of long-term physiotherapy.

[0027] A steam generator 10 is installed outside the fumigation chamber 1 and is used to heat and vaporize the traditional Chinese medicine liquid to generate traditional Chinese medicine steam. The steam generator 10 is connected to the steam output component 4 inside the fumigation chamber 1 through a pipeline to deliver the traditional Chinese medicine steam into the chamber.

[0028] Multiple sets of sensors 30 are distributed inside the fumigation chamber 1 or on the lying section 2, including at least a variety of sensors such as temperature sensors, pressure sensors, liquid level sensors, temperature and humidity sensors and VOC gas sensors, to monitor environmental parameters such as temperature, pressure, humidity, liquid level of traditional Chinese medicine and concentration of volatile gases in the chamber in real time, and transmit the detection data to the electronic control system.

[0029] The vital sign identification device 20 is configured on the outside of the fumigation chamber 1 or integrated into the operation panel to acquire the user's vital sign data. In this embodiment, the constitution identification device 20 can be one or more combinations of a tongue image acquisition camera, a pulse sensor, and a skin resistance detection electrode. The constitution identification device 20 has a built-in or external processing unit 201. The processing unit 201 has a preset TCM constitution classification model, which can be a constitution identification model trained based on machine learning algorithms. Based on the input vital sign data, it outputs a constitution type signal, such as nine standard constitution classification results: balanced constitution, yang deficiency constitution, yin deficiency constitution, qi deficiency constitution, damp-heat constitution, and phlegm-dampness constitution.

[0030] One of the core improvements in this embodiment lies in the sensor isolation and protection unit 5. At least one standardized pre-installed mounting position 51 is provided on the side wall of the fumigation chamber 1 and the structural components of the reclining part 2. The sensor isolation and protection unit 5 is detachably threaded onto this pre-installed mounting position 51, and the sensor 30 is encapsulated within the internal cavity of the sensor isolation and protection unit 5. Thus, a reliable physical isolation barrier is formed between the sensor 30 and the corrosive environment inside the fumigation chamber 1, characterized by high temperature, high humidity, and the presence of corrosive media such as organic acids and volatile oils from traditional Chinese medicine, fundamentally preventing direct contact between steam and condensate with the sensor core.

[0031] Specifically, the sensor isolation and protection unit 5 includes a first type of isolation module 501 and a second type of isolation module 502 that can be selectively mounted. Both modules have a unified external mounting interface specification, such as an M16×1.5 external thread and a Φ18mm outer diameter housing, allowing the same reserved mounting position 51 to be freely equipped with either the first type of isolation module 501 or the second type of isolation module 502 according to the detection requirements, achieving a high degree of versatility and interchangeability.

[0032] The first type of isolation module 501 is configured to provide enclosed isolation, specifically for protecting first-type sensors that do not require direct contact with steam, such as temperature sensors, pressure sensors, and photoelectric level sensors. This first type of isolation module 501 mainly includes an outer protective housing 511 and a solid thermally conductive insulating medium layer 512. The outer protective housing 511 can be made of SUS304 stainless steel, with a closed front end to withstand the steam pressure inside the chamber and isolate the medium. Inside the outer protective housing 511, the sensing core is coaxially fixed by a positioning frame 513. The annular gap between the outer protective housing 511 and the sensing core is densely filled with the solid thermally conductive insulating medium layer 512 through a vacuum potting process. After curing, the solid thermally conductive insulating medium layer 512 forms a dense, bubble-free, and gapless insulating body, completely isolating the sensing core from the external environment. Herbal vapors, condensed medicinal liquids, and corrosive colloids cannot penetrate into the sensing core, completely avoiding problems such as temperature drift, false pressure alarms, and liquid level detection failures caused by water leakage due to aging of seals and scaling on the probe surface. Simultaneously, heat is efficiently transferred to the sensing core via solid-state heat conduction through the outer protective shell 511 and the solid thermally conductive insulating medium layer 512, ensuring the response speed and accuracy of temperature measurement. In this embodiment, the solid thermally conductive insulating medium layer 512 is preferably a thermally conductive epoxy potting layer with a thermal conductivity of not less than 1.0 W / (m·K), and the potting layer thickness is controlled within the range of 0.8 mm to 1.4 mm to balance thermal conductivity and isolation reliability. A waterproof gland is provided at the tail end of the first type of isolation module 501 to ensure the sealing of the cable exit point.

[0033] The second type of isolation module 502 is configured to provide breathable isolation, specifically for protecting second-type sensors that must come into contact with the gas composition inside the chamber for detection, such as temperature and humidity sensors and VOC gas sensors. This second type of isolation module 502 mainly includes a protective housing 521 and a composite isolation filter membrane assembly 522. A breathable passage 523 for gas flow is formed inside the protective housing 521, and the composite isolation filter membrane assembly 522 is disposed within this breathable passage 523. In this embodiment, the front end of the protective housing 521 is designed as a closed flow guide cap 524 to prevent high-temperature steam and liquid chemicals from directly impacting the internal filter membrane; the flow guide cap 524 may be conical, and the air inlet of the breathable passage 523 is located on the side of the flow guide cap 524, allowing airflow to enter after deflection. To improve the effect of blocking liquid water and oil mist, the breathable passage 523 may be designed with an inner conical section and may be equipped with a flexible flow guide tube 525. In other words, the aforementioned composite isolation filter membrane assembly 522 is located at the inner conical section of the air permeable passage 523.

[0034] The composite isolation filter membrane module 522 adopts a double-layer composite structure of an oil-absorbing material layer 522a and a hydrophobic and breathable material layer 522b. The hydrophobic and breathable material layer 522b can be made of expanded PTFE membrane to block liquid condensate; the oil-absorbing material layer 522a can be made of high-temperature resistant oil-absorbing non-woven fabric to capture volatile oil mist from traditional Chinese medicine. The two layers work synergistically, allowing only clean gas molecules to pass through and contact the sensing core, effectively overcoming the problem of micropore blockage and short-term failure caused by volatile oil wetting in single-layer waterproof and breathable membranes. The composite isolation filter membrane module 522 is preferably designed as a snap-on, independently replaceable consumable unit. Maintenance only requires removing the old filter membrane module and inserting the new one, without replacing the entire module or sensor, significantly reducing maintenance costs.

[0035] Another key improvement in this embodiment lies in the steam output component 4. The steam output component 4 is integrated onto the support surface 21 of the reclining section 2 and includes multiple steam nozzles 41 arranged in an array. All steam nozzles 41 face the human body surface above the support surface 21, outputting herbal steam from below the body upwards. The reclining section 2 is internally equipped with a steam distribution chamber 42, whose inlet is connected to the steam generator 10 via a pipeline, and whose outlet is connected to each steam nozzle 41. The volume and shape of the steam distribution chamber 42 are optimized through fluid simulation, ensuring that the incoming steam is adequately buffered and pressurized within the chamber before being uniformly ejected from each steam nozzle 41 at a relatively consistent flow rate and temperature, thus guaranteeing a uniform temperature field within the chamber. In this embodiment, a guide plate 43 is also added to the side near the lying part 2. The guide plate 43 extends upward from the edge of the lying part 2 and has an inwardly curved surface. It is used to guide the steam flowing out of the steam nozzle 41 toward the surface of the human body, restrict the steam from ineffectively dissipating to the outside of the cabin, and further enhance the steam's covering effect on the human body.

[0036] The ventilation actuator 60 is mounted on the fumigation chamber 1 and can be a variable frequency speed control fan 61. The ventilation actuator 60 is electrically connected to the ventilation control unit 70. The ventilation control unit 70 receives the body type signal output by the body type identification device 20 and generates a corresponding ventilation strategy signal according to a preset mapping relationship to drive the ventilation actuator 60 to operate.

[0037] In this embodiment, the ventilation control unit 70 is a functional module integrated into the main controller of the equipment. Its preset mapping relationship is as follows: when the constitution type signal indicates Yang deficiency, a low ventilation strategy signal is generated, controlling the variable frequency speed control fan 61 to run at a low speed of 20%-30% of the rated speed to reduce heat loss in the cabin, which is in line with the TCM treatment principle of warming and tonifying Yang deficiency; when the constitution type signal indicates damp-heat, a high ventilation strategy signal is generated, controlling the variable frequency speed control fan 61 to run at a high speed of 70%-100% of the rated speed to promote air circulation and sweating heat dissipation, and assist in the effect of clearing heat and removing dampness; when the constitution type signal indicates Qi deficiency, an intermittent ventilation strategy signal is generated, controlling the variable frequency speed control fan 61 to run at a medium speed intermittently, such as a cycle mode of 3 minutes on and 2 minutes off, to maintain air freshness while avoiding excessive sweating and depletion of Qi and body fluids caused by continuous ventilation, thereby achieving the purpose of harmonizing Ying and Wei. The above ventilation strategy parameters can all be finely adjusted via the control panel or remote terminal to suit the specific physical sensations and tolerance levels of different users.

[0038] The working process of this embodiment is as follows: The user lies flat on the bearing surface 21 of the reclining part 2, and completes the collection of vital sign data through the body constitution identification device 20. The system automatically outputs the body constitution type signal. After the door 3 of the fumigation chamber 1 is closed to form a sealed space, the steam generator 10 is started. The Chinese medicine steam is evenly distributed to each steam nozzle 41 through the steam distribution chamber 42, sprayed from bottom to top and diffused along the guide plate 43 to adhere to the surface of the human body, forming an all-round steam coverage. Various sensors 30 in the chamber, through the assembled first type isolation module 501 or second type isolation module 502, stably collect data such as temperature, pressure, humidity, and VOC concentration in the harsh steam medium environment, and transmit them to the electronic control system to realize closed-loop temperature control and safety monitoring of the fumigation process. At the same time, the ventilation control unit 70 executes the corresponding ventilation strategy according to the body constitution type signal, adjusts the ventilation volume and ventilation direction, and provides the user with a differentiated physiotherapy environment that matches their body constitution type.

[0039] Example 2 like Figure 8 and Figure 9 As shown, this embodiment further optimizes the specific parameters and structure of the sensor isolation and protection unit 5 based on Embodiment 1.

[0040] In this embodiment, the outer protective shell 511 of the first type of isolation module 501 is provided with an axially extending guide groove 511a on its surface, which is used to guide the condensed liquid to flow down the groove and reduce the adhesion and accumulation of adhesive on the shell surface. The tail of the outer protective shell 511 is provided with a conical adhesive baffle 511b, which further prevents the condensate from climbing up the shell to the outlet gland and enhances the long-term reliability of the seal.

[0041] The thickness of the thermally conductive epoxy potting layer is preferably 1.0 mm to 1.2 mm. It is treated with vacuum degassing and curing process to ensure that there are no air bubbles or pores inside the potting layer, and the airtightness meets the standard of no leakage in immersion test at 0.08 MPa.

[0042] In this embodiment, a 500-mesh SUS316L stainless steel sintered mesh is added as a primary coarse filter layer 526 to the front end of the composite isolation filter membrane assembly 522 of the second type of isolation module 502. This is used to intercept large particles and colloids that may be present in the traditional Chinese medicine liquid, preventing them from directly sticking to the oil-absorbing material layer 522a behind it, and further extending the overall replacement cycle of the composite isolation filter membrane assembly 522. A gap of 0.5mm to 1mm is left between the oil-absorbing material layer 522a and the hydrophobic and breathable material layer 522b to increase the gas flow area, reduce the ventilation resistance, and ensure that the response speed of the temperature and humidity sensor and the VOC gas sensor is not significantly affected.

[0043] Example 3 like Figure 10 As shown, this embodiment supplements the specific implementation method of the body constitution identification component 20 and the ventilation control strategy based on any one of the embodiments in Embodiment 1 to Embodiment 2.

[0044] In this embodiment, the constitution identification device 20 employs a combination of a non-contact tongue image acquisition camera and a contact pulse sensor. The tongue image acquisition camera is located outside the fumigation chamber 1. Before use, the user takes a picture of their tongue, and the image data is transmitted to the processing unit 201 for feature extraction, including tongue color, tongue coating color, and tongue shape. The pulse sensor is located in the wrist placement area of ​​the lying position 2. While lying down, the user naturally places their wrist on the pulse sensor to acquire the pulse waveform. The processing unit 201 fuses the tongue image features and pulse image features and inputs them into a pre-trained convolutional neural network constitution classification model, outputting a constitution type signal. This multimodal feature fusion constitution identification method significantly improves the accuracy and robustness of constitution classification compared to a single acquisition method.

[0045] Regarding ventilation control strategies, this embodiment adds more corresponding strategies for different body constitutions based on the three basic strategies described in Embodiment 1. For example, for those with Yin deficiency constitution, a moderate ventilation volume combined with atomized humidification is used to maintain suitable humidity while dissipating heat, preventing dry throat discomfort caused by excessive ventilation; for those with phlegm-dampness constitution, a high ventilation volume combined with intermittent exhaust is used to accelerate the removal of moisture. The ventilation control unit 70 can also dynamically and in a closed-loop manner correct the ventilation strategy based on the real-time temperature and humidity data fed back by the sensor 30, achieving more refined control of the therapeutic environment.

[0046] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An intelligent ventilation-based traditional Chinese medicine fumigation system based on TCM constitution identification, comprising: Fumigation chamber; A reclining area, located inside the fumigation chamber, is used to support the human body; A steam generator is used to deliver traditional Chinese medicine steam into the fumigation chamber; Multiple sets of sensors are used to monitor environmental parameters inside the fumigation chamber; The constitution identification device is configured to acquire the user's vital sign data and output a constitution type signal according to a preset TCM constitution classification model. Its characteristic is that it further includes: At least one sensor isolation and protection unit is detachably mounted on the fumigation chamber or the reclining unit, and the sensor is encapsulated in the sensor isolation and protection unit to physically isolate the sensor from the medium environment inside the fumigation chamber. A steam output component is integrated on the support surface of the reclining part for supporting the human body. The steam output component includes multiple steam nozzles, which are connected to the steam generating device and are positioned towards the human body surface above the support surface to output steam from below the human body to form a covering. A ventilation actuator is installed on the fumigation chamber and connected to the ventilation control unit, used to adjust the ventilation volume and ventilation direction of the fumigation chamber according to the ventilation strategy signal.

2. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 1, characterized in that, The sensor isolation and protection unit includes a first type of isolation module and a second type of isolation module that can be optionally assembled. The first type of isolation module is configured to provide enclosed isolation for protecting the first type of sensor that does not need to come into contact with steam; The second type of isolation module is configured to provide breathable isolation for protecting the second type of sensor that needs to come into contact with vapor.

3. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 2, characterized in that, The first type of isolation module includes: The outer protective shell, at least its front end, is a closed end; A solid thermally conductive insulating medium layer is densely filled between the interior of the protective housing and the first type of sensing core built into the protective housing, so as to airtightly isolate the first type of sensing core from the external environment and transfer the external temperature to the first type of sensing core through solid thermal conduction.

4. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 3, characterized in that, The solid thermally conductive insulating medium layer is a thermally conductive epoxy potting layer.

5. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 2, characterized in that, The second type of isolation module includes: The protective outer shell has a breathable passageway inside for gas to flow through. A composite isolation filter membrane assembly is disposed in the air permeable passage to allow gas molecules to pass through while blocking liquid water and oil mist, so that external gas entering through the air permeable passage is purified by the composite isolation filter membrane assembly before contacting the second type of sensor core built into the protective housing.

6. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 5, characterized in that, The composite isolation filter membrane assembly is composed of an oil-absorbing material layer and a hydrophobic and breathable material layer stacked together; and the composite isolation filter membrane assembly is an independently replaceable unit.

7. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 5, characterized in that, The front end of the protective shell is a closed flow guide cap to block the direct flow of the medium; the air inlet of the ventilation passage is opened on the side of the flow guide cap. The flow guide cap is conical, the air passage is an inner conical section, and it is equipped with a flexible flow guide tube to block liquid water and oil mist; The composite isolation filter membrane assembly is located within the inner conical section of the air permeable passage and is evenly distributed along the axis.

8. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 1, characterized in that, The steam output assembly also includes: A steam distribution chamber is located inside the reclining part. Its air inlet is connected to the steam generating device, and its air outlet is connected to a plurality of steam nozzles respectively, for uniformly distributing the steam from the steam generating device to each of the steam nozzles. A guide plate is provided on the side near the reclining part to guide the steam flowing out of the steam nozzle.

9. The intelligent ventilation and herbal fumigation system based on TCM constitution identification according to claim 1, characterized in that, The ventilation control unit is configured as follows: When the constitution type signal indicates Yang deficiency, a low ventilation strategy signal is generated; When the constitution type signal indicates a hot and humid constitution, a high ventilation strategy signal is generated; When the constitution type signal indicates Qi deficiency, an intermittent ventilation strategy signal is generated.

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