Breathing-driven self-powered ammonia sensing intelligent mask

Abstract

The utility model provides a self-powered ammonia sensing intelligent mask, which relates to the technical field of medical instruments and comprises a mask body, a first ammonia sensing module, a second ammonia sensing module, a friction nanometer power generation module and a circuit management module. The first ammonia gas sensing module is arranged on the inner side of the mask body and used for detecting the concentration of ammonia gas in breathing gas of a user; the second ammonia gas sensing module is arranged on the outer side of the mask body and used for detecting the ammonia gas concentration in the environment; the friction nanometer power generation module comprises friction nanometer power generation fabric arranged on the inner side of the mask body and used for converting breathing mechanical energy into electric energy. And the circuit management module is used for receiving the electric energy and driving the two ammonia gas sensing modules to work. Respiration mechanical energy is collected through the friction nanometer power generation module, the problem that a traditional intelligent mask depends on external power supply is solved, and meanwhile real-time monitoring of the concentration of ammonia gas on the inner side and the outer side of the mask is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent wearing equipment technical field, concretely relates to a breath -driven self -powered ammonia gas sensing intelligent gauze mask. BACKGROUND

[0002] Among many harmful gases, ammonia gas needs to be focused on and protected due to its irritability and potential health hazards. At present, the protective gauze masks on the market mainly block harmful gases through physical filtering mode, but cannot monitor the breathing condition of the user and the ammonia gas content in the surrounding environment in real time, and cannot judge the protection effect of the gauze mask.

[0003] In order to realize real-time monitoring of respiratory gas, the prior art usually adopts various gas sensors. These sensors have high detection accuracy, but often need external power supply, which not only increases the device size and weight, but also is inconvenient for wearing and long-term use. In addition, since the traditional sensor can usually only detect the gas concentration in a single environment, it is difficult to simultaneously obtain the ammonia gas concentration data on both sides of the gauze mask, and cannot effectively evaluate the actual protection effect of the gauze mask.

[0004] In recent years, with the development of self-powered technology, some researches have begun to try to combine energy collection devices with sensors. However, the current self-powered sensing equipment generally has problems such as low power generation efficiency and unstable power supply, which is difficult to meet the continuous working needs of the gas sensor. At the same time, how to effectively integrate the power generation unit, the sensing unit and other functional modules into the limited space of the gauze mask to realize the integrated design of compact structure and comfortable wearing is also an important challenge faced by the current technology. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a breath -driven self -powered ammonia gas sensing intelligent gauze mask, which can not only monitor the breathing condition of the user and the environmental ammonia gas concentration in real time, but also can maintain the continuous work of the system through the mechanical energy in the breathing process, thereby providing better health protection for the user.

[0006] In order to achieve the above-mentioned purpose, the utility model realizes the following technical scheme:

[0007] A breath -driven self -powered ammonia gas sensing intelligent gauze mask, comprising

[0008] A gauze mask body;

[0009] A first ammonia gas sensing module arranged on the inner side of the gauze mask body, the first ammonia gas sensing module is used for detecting the ammonia gas concentration in the respiratory gas of the user;

[0010] A second ammonia gas sensing module arranged on the outer side of the gauze mask body, the second ammonia gas sensing module is used for detecting the ammonia gas concentration in the environment;

[0011] A friction nanometer power generation module arranged inside the mask body, the friction nanometer power generation module is used for converting mechanical energy generated in the process of user breathing into electric energy;

[0012] And a circuit management module electrically connected with the first ammonia gas sensing module, the second ammonia gas sensing module and the friction nanometer power generation module, the circuit management module is used for receiving electric energy generated by the friction nanometer power generation module and driving the first ammonia gas sensing module and the second ammonia gas sensing module to work.

[0013] Further, the first ammonia gas sensing module and the second ammonia gas sensing module each include interdigital electrodes and ammonia gas sensing material arranged on the interdigital electrodes.

[0014] Further, the interdigital electrodes are arranged on the surface of the mask body.

[0015] Further, the friction nanometer power generation module includes friction nanometer power generation fabric.

[0016] Further, the circuit management module includes an LM317 voltage stabilizer used for stabilizing the voltage output by the friction nanometer power generation module and a signal amplifier used for amplifying the output signal of the first ammonia gas sensing module and the second ammonia gas sensing module.

[0017] Further, the input end of the LM317 voltage stabilizer is electrically connected with the friction nanometer power generation module, and the output end of the LM317 voltage stabilizer is electrically connected with the first ammonia gas sensing module and the second ammonia gas sensing module respectively.

[0018] Further, the output end of the first ammonia gas sensing module and the second ammonia gas sensing module is electrically connected with the input end of the signal amplifier.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] First, the device can effectively capture and utilize the mechanical energy generated in the process of user breathing by arranging the friction nanometer power generation module inside the mask body, convert the mechanical energy into electric energy, provide continuous and stable electric energy supply for the ammonia gas sensing module, and solve the technical problem of inconvenient power supply of the traditional intelligent mask.

[0021] Second, the ammonia gas sensing modules are arranged on the inner and outer sides of the mask body, which can monitor the ammonia gas concentration in the breathing gas of the user and the external environment at the same time. By comparing the difference between the inner and outer ammonia gas concentrations, the protective effect of the mask can be evaluated in real time, and timely protective state feedback can be provided for the user.

[0022] Third, the ammonia sensing module design, which combines an interdigitated electrode structure with ammonia sensing materials, enables the sensing unit to achieve high sensitivity while maintaining a simple structure and ease of fabrication. The triboelectric nanofiber fabric is securely attached to the mask body, without affecting the user's normal breathing, ensuring mask comfort. Furthermore, the use of an LM317 voltage regulator and signal amplifier effectively manages the power supply circuit and enhances the sensing signal, ensuring stable and reliable system operation. Attached Figure Description

[0023] Figure 1 A schematic diagram of the inside of a breathing-driven, self-powered ammonia-sensing smart mask;

[0024] Figure 2 A schematic diagram of the outer side of a breathing-driven, self-powered ammonia-sensing smart mask.

[0025] Figure 3 This is a schematic cross-sectional view of the installation structure of the first ammonia sensor module on the mask body.

[0026] Figure 4 This is a schematic diagram of the front view of the interdigitated electrodes;

[0027] Figure 5 This is a schematic diagram showing the structure and connection relationships of the circuit management module;

[0028] Figure 6 This is a detailed circuit connection diagram of the signal processing circuit;

[0029] In the picture:

[0030] 1. Mask body; 2. First ammonia sensing module; 3. Second ammonia sensing module; 4. Triboelectric nano-power generation module; 5. Interdigitated electrode; 6. Ammonia sensing material. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-4 As shown, the self-powered ammonia-sensing smart mask of this invention includes a mask body 1, a first ammonia-sensing module 2 and a triboelectric nano-power generation module 4 disposed on the inner side of the mask body 1, and a second ammonia-sensing module 3 disposed on the outer side of the mask body 1. It also includes a circuit management module electrically connected to the aforementioned modules. The first ammonia-sensing module 2 is used to detect the ammonia concentration in the user's breath and trigger an alarm when it exceeds a preset threshold. The second ammonia-sensing module 3 is used to detect the ammonia concentration in the environment and trigger an alarm when it exceeds a preset threshold.

[0034] The first ammonia sensing module 2 and the second ammonia sensing module 3 have the same structure, both including interdigitated electrodes 5 and ammonia sensing material 6 disposed on the interdigitated electrodes 5. Specifically, the interdigitated electrodes 5 are first constructed on the surface of the mask body 1, and then the self-made ammonia sensing material 6 is coated on the interdigitated electrodes 5. By adopting the interdigitated electrode 5 structure, a larger sensing material adhesion area can be provided, which is beneficial to improving sensing sensitivity.

[0035] The triboelectric nano-power generation module 4 uses a self-made triboelectric nano-power generation fabric, which is fixed to the inner surface of the mask body 1. When the user breathes, the airflow causes the triboelectric nano-power generation fabric to deform, thereby converting the mechanical energy generated during breathing into electrical energy. The triboelectric nano-power generation fabric is soft and breathable, and will not affect the user's normal breathing.

[0036] like Figures 5-6 As shown, the circuit management module includes an LM317 voltage regulator and two independent signal processing circuits. The input of the LM317 voltage regulator is electrically connected to the triboelectric nanogenerator module 4, and is used to receive and stabilize the voltage output by the triboelectric nanogenerator module 4.

[0037] Each signal processing circuit includes an ammonia sensor, a signal amplification circuit, and an LED alarm circuit. The first ammonia sensor module 2, connected to a first operational amplifier via 1.8MΩ and 1MΩ voltage divider resistors, forms a first signal amplification circuit for detecting and amplifying ammonia signals in exhaled breath. When the detected ammonia concentration exceeds a preset threshold, an alarm signal is emitted via a first LED connected to 10kΩ and 1kΩ resistors. The second ammonia sensor module 3 uses the same circuit structure but with an independent second signal amplification circuit for independently detecting ammonia concentration in the external environment and issuing an alarm. The two sensor circuits are independently powered by an LM317, ensuring no interference. Adjustable resistors are used to adjust the detection sensitivity, allowing the system to flexibly set alarm thresholds according to different scenario requirements.

[0038] This self-powered ammonia-sensing smart mask utilizes a triboelectric nano-power generation module 4 to collect the mechanical energy generated during the user's breathing and convert it into electrical energy. This electrical energy is then regulated by an LM317 voltage regulator to power two independent signal processing circuits. The first ammonia-sensing module 2 monitors the ammonia concentration in the user's breath in real time. When the concentration exceeds a preset threshold, an LED alarm is triggered via a first signal amplification circuit. The second ammonia-sensing module 3 monitors the ammonia concentration in the external environment in real time. When the concentration exceeds a preset threshold, an LED alarm is triggered via a second signal amplification circuit. The independent operation of the two sensing modules allows for both monitoring of the user's breathing and timely alerts to the presence of hazardous gases in the environment, providing comprehensive protection for the user.

[0039] Through the above technical solution, this utility model's self-powered ammonia-sensing smart mask successfully solves the problem of traditional smart masks relying on external power supply, realizing a self-powered function based on breathing. Simultaneously, by setting ammonia sensing modules on both the inner and outer sides of the mask, it can monitor and compare the ammonia concentration inside and outside the mask in real time, providing users with intuitive feedback on the protective effect. Furthermore, the various functional modules used have simple structures and high integration, facilitating practical application and promotion.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A breath-driven self-powered ammonia gas sensing smart mask, characterized in that, The mask body comprises: a first ammonia gas sensing module arranged inside the mask body, the first ammonia gas sensing module being used for detecting the ammonia gas concentration in the breathing gas of a user and sending an alarm signal when the ammonia gas concentration exceeds a preset threshold; a second ammonia gas sensing module arranged outside the mask body, the second ammonia gas sensing module being used for detecting the ammonia gas concentration in the environment and sending an alarm signal when the ammonia gas concentration exceeds a preset threshold; a friction nanometer power generation module arranged inside the mask body, the friction nanometer power generation module being used for converting the mechanical energy generated in the breathing process of the user into electrical energy; and a circuit management module electrically connected with the first ammonia gas sensing module, the second ammonia gas sensing module and the friction nanometer power generation module, the circuit management module comprising two independent signal processing circuits respectively connected with the first ammonia gas sensing module and the second ammonia gas sensing module, and being used for receiving the electrical energy generated by the friction nanometer power generation module and driving the two ammonia gas sensing modules to work independently. The first ammonia gas sensing module and the second ammonia gas sensing module each comprise interdigital electrodes and ammonia gas sensing material arranged on the interdigital electrodes.

2. The breath-driven, self-powered ammonia gas sensing smart mask according to claim 1, wherein, The interdigital electrodes are arranged on the surface of the mask body.

3. The breath-driven, self-powered ammonia gas sensing smart mask according to claim 2, wherein, The friction nanometer power generation module comprises a friction nanometer power generation fabric.

4. The breath-driven, self-powered ammonia gas sensing smart mask according to claim 1, wherein, The friction nanometer power generation fabric is fixed to the inner surface of the mask body.

5. The breath-driven, self-powered ammonia gas sensing smart facemask of claim 4, wherein, The circuit management module comprises an LM317 voltage stabilizer, a first signal amplification circuit, a second signal amplification circuit and an LED alarm circuit.

6. The breath-driven, self-powered ammonia gas sensing smart mask according to claim 1, wherein, The input end of the LM317 voltage stabilizer is electrically connected with the friction nanometer power generation module, and the output end of the LM317 voltage stabilizer is electrically connected with the first signal amplification circuit and the second signal amplification circuit respectively, so as to provide independent power supply voltages for the two signal amplification circuits.

7. The breath-driven, self-powered ammonia gas sensing smart facemask of claim 6, wherein, The first ammonia gas sensing module is electrically connected with the first signal amplification circuit and the first LED alarm circuit, and the second ammonia gas sensing module is electrically connected with the second signal amplification circuit and the second LED alarm circuit.

8. The breath-driven, self-powered ammonia gas sensing smart mask according to claim 6, wherein, ​

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