阅读说明：本技术 一种基于压电-热电收集的自供电便携式智能口罩 (Self-powered portable intelligent mask based on piezoelectric-thermoelectric collection ) 是由 蒋庄德 刘兆钧 田边 黎瑶 李乐 雷嘉明 张仲恺 刘江江 史鹏 林启敬 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种基于压电-热电收集的自供电便携式智能口罩,包括呼吸监测模块、无线传输模块、微型控制单元、口罩本体以及用于提供电能的自供电模块,其中,自供电模块及呼吸监测模块均固定于口罩本体的内侧,且自供电模块及呼吸监测模块正对携带者的口鼻,自供电模块经微型控制单元与呼吸监测模块相连接,呼吸监测模块与外界设备相连接,该口罩采用自供电方式对人体呼吸参数进行检测。(The invention discloses a self-powered portable intelligent mask based on piezoelectric-thermoelectric collection, which comprises a breathing monitoring module, a wireless transmission module, a micro control unit, a mask body and a self-powered module for supplying electric energy, wherein the self-powered module and the breathing monitoring module are both fixed on the inner side of the mask body, the self-powered module and the breathing monitoring module are right opposite to the mouth and the nose of a carrier, the self-powered module is connected with the breathing monitoring module through the micro control unit, the breathing monitoring module is connected with external equipment, and the mask detects breathing parameters of a human body in a self-powered mode.)

1. The utility model provides a self-power portable intelligent gauze mask based on piezoelectricity-thermoelectric collection which characterized in that, including breathing monitoring module (6), wireless transmission module (10), micro control unit (9), gauze mask body (13) and be used for providing self-power module (7) of electric energy, wherein, all be fixed in the inboard of gauze mask body (13) from power module (7) and breathing monitoring module (6), and just face the person's of carrying nose from power module (7) and breathing monitoring module (6), self-power module (7) are connected with breathing monitoring module (6) through micro control unit (9), breathing monitoring module (6) are connected with external equipment.

2. The self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to claim 1, wherein the respiration monitoring module (6) comprises an information acquisition module (8), a first flexible piezoelectric force sensor (4) and a first flexible thermocouple type temperature sensor (5), an input end of the information acquisition module (8) is connected with the first flexible piezoelectric force sensor (4) and the first flexible thermocouple type temperature sensor (5), an output end of the information acquisition module (8) is connected with an external device, and a control end of the information acquisition module (8) is connected with an output end of the micro control unit (9).

3. The self-powered portable smart mask based on piezo-thermoelectric collection according to claim 2, wherein the self-powered module (7) comprises a thermoelectric/piezoelectric energy storage unit (3), an array flexible piezoelectric force sensor (2) and an array flexible thermocouple temperature sensor (1), the output end of the array flexible piezoelectric force sensor (2) and the output end of the array flexible thermocouple temperature sensor (1) are connected with the thermoelectric/piezoelectric energy storage unit (3), the output end of the thermoelectric/piezoelectric energy storage unit (3) is connected with the power interface of the micro-control unit (9), and the control end of the thermoelectric/piezoelectric energy storage unit (3) is connected with the output end of the micro-control unit (9).

4. The self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to claim 1, wherein the control end of the information acquisition module (8) is connected with external equipment through a wireless transmission module (10), and the output end of the thermoelectric/piezoelectric energy storage unit (3) is connected with the power interface of the wireless transmission module (10).

5. Self-powered portable smart mask based on piezo-thermoelectric collection according to claim 1, characterized in that the external devices comprise cell phone APP (11) and 5G cloud medical platform (12).

6. Self-powered portable smart mask based on piezo-thermoelectric collection according to claim 3, characterized in that the first flexible piezoelectric force sensor (4), the first flexible piezoelectric temperature sensor (5), the second flexible piezoelectric force sensors of the array flexible piezoelectric force sensors (2) and the second flexible piezoelectric temperature sensors of the array flexible piezoelectric temperature sensors (1) are all laminated composite structures.

7. A self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to claim 6, wherein the piezoelectric film layers in the first flexible piezoelectric force sensor (4) and the second flexible piezoelectric force sensor are both made of lead zirconate titanate or polyvinylidene fluoride.

8. The self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to claim 6, wherein the thermoelectric thin film layers of the first flexible thermocouple type temperature sensor (5) and the second flexible thermocouple type temperature sensor are made of indium tin oxide or indium oxide.

9. Self-powered portable smart mask based on piezo-thermoelectric collection according to claim 6, wherein the upper and lower electrodes in the first (4) and second (4) flexible piezoelectric force sensors are copper electrodes.

10. Self-powered portable smart mask based on piezo-thermoelectric collection according to claim 6, characterized in that the flexible substrate of the first flexible piezoelectric force sensor (4), the second flexible piezoelectric force sensor, the first flexible thermocouple temperature sensor (5) and the second flexible thermocouple temperature sensor are all polyimide or polydimethylsiloxane.

Technical Field

The invention belongs to the technical field of energy collection, energy supply and sensor measurement, and relates to a self-powered portable intelligent mask based on piezoelectric-thermoelectric collection.

Background

As of today, new coronary pneumonia has been a rapidly spreading pandemic in 194 countries and regions. Under the condition that the global epidemic situation is still so severe, the important function of the mask is needless to say, because the new coronavirus has a very key transmission path, namely droplet transmission, in our daily life, the wearing of the mask becomes a part of the life. However, the existing mask is only a mask, and the work of preventing the spray from spreading and filtering various particles is finished.

On the other hand, due to the rapid development of the communication technology and the sensor manufacturing technology, the wireless sensing network is widely applied to monitoring and detecting of various objects, the traditional battery power supply system has limited energy supply and higher maintenance cost, and the energy collection technology provides a good solution for the problem. The energy collection technology can also convert the relevant energy of the human body into electric energy, and the intelligent wearable equipment for supplying power to the wearable sensor equipment applied to the human body realizes autonomous power supply.

The intelligent mask capable of detecting the respiratory health state of the human body by self-power supply based on the basic metabolic activity of the human body has very wide application prospect by combining the development of indispensable masks and wearable sensors in epidemic situations.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a self-powered portable intelligent mask based on piezoelectric-thermoelectric collection, and the mask adopts a self-powered mode to detect the breathing parameters of a human body.

In order to achieve the above object, the self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to the present invention comprises a respiration monitoring module, a wireless transmission module, a micro control unit, a mask body and a self-powered module for providing power, wherein the self-powered module and the respiration monitoring module are both fixed on an inner side of the mask body, the self-powered module and the respiration monitoring module face to a nose and mouth of a carrier, the self-powered module is connected with the respiration monitoring module through the micro control unit, and the respiration monitoring module is connected with an external device.

The respiration monitoring module comprises an information acquisition module, a first flexible piezoelectric type force sensor and a first flexible thermocouple type temperature sensor, the input end of the information acquisition module is connected with the first flexible piezoelectric type force sensor and the first flexible thermocouple type temperature sensor, the output end of the information acquisition module is connected with external equipment, and the control end of the information acquisition module is connected with the output end of the miniature control unit.

The self-powered module comprises a thermoelectric/piezoelectric energy storage unit, an array flexible piezoelectric type force sensor and an array flexible thermocouple type temperature sensor, wherein the output end of the array flexible piezoelectric type force sensor and the output end of the array flexible thermocouple type temperature sensor are connected with the thermoelectric/piezoelectric energy storage unit, the output end of the thermoelectric/piezoelectric energy storage unit is connected with a power interface of the micro control unit, and the control end of the thermoelectric/piezoelectric energy storage unit is connected with the output end of the micro control unit.

The control end of the information acquisition module is connected with external equipment through the wireless transmission module, and the output end of the thermoelectric/piezoelectric energy storage unit is connected with the power interface of the wireless transmission module.

The external equipment comprises a mobile phone APP and a 5G cloud medical platform.

The first flexible piezoelectric type force sensor, the first flexible thermocouple type temperature sensor, each second flexible piezoelectric type force sensor in the array type flexible piezoelectric type force sensor and each second flexible thermocouple type temperature sensor in the array type flexible thermocouple type temperature sensor are all of a laminated composite structure.

The materials of the piezoelectric film layers in the first flexible piezoelectric type force sensor and the second flexible piezoelectric type force sensor are lead zirconate titanate or polyvinylidene fluoride.

The materials of the thermoelectric thin film layers in the first flexible thermocouple type temperature sensor and the second flexible thermocouple type temperature sensor are indium tin oxide or indium oxide.

The upper electrode and the lower electrode in the first flexible piezoelectric type force sensor and the second flexible piezoelectric type force sensor are both copper electrodes.

The flexible substrates of the first flexible piezoelectric type force sensor, the second flexible piezoelectric type force sensor, the first flexible thermocouple type temperature sensor and the second flexible thermocouple type temperature sensor are polyimide or polydimethylsiloxane.

The invention has the following beneficial effects:

when the self-powered portable intelligent mask based on piezoelectric-thermoelectric collection is specifically operated, the self-powered module is used for generating electricity by utilizing the breathing of a carrier, the breathing monitoring module is used for detecting the breathing parameters of the carrier, and then the breathing parameters are sent to external equipment, so that the aim of detecting the breathing parameters of a human body in a self-powered mode is fulfilled, and the self-powered portable intelligent mask based on piezoelectric-thermoelectric collection is convenient and simple to operate and has strong practicability.

Drawings

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a schematic diagram of a respiration monitoring module 6 according to the present invention;

fig. 3 is a distribution diagram of the self-powered module 7 and the respiration monitoring module 6 according to the present invention.

The mask comprises a mask body, a first flexible thermocouple type temperature sensor 1, a second flexible thermocouple type temperature sensor 2, a thermoelectric/piezoelectric energy storage unit 3, a first flexible piezoelectric type force sensor 4, a first flexible thermocouple type temperature sensor 5, a respiration monitoring module 6, a self-powered module 7, an information acquisition module 8, a micro control unit 9, a wireless transmission module 10, a mobile phone APP11, a 5G cloud medical platform 12 and a mask body 13, wherein the mask body is made of a transparent material.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.

Referring to fig. 1 and 3, the self-powered portable intelligent mask based on piezoelectric-thermoelectric collection according to the present invention includes a respiration monitoring module 6, a wireless transmission module 10, a micro control unit 9, a mask body 13, and a self-powered module 7 for providing power, wherein the self-powered module 7 and the respiration monitoring module 6 are both fixed on an inner side of the mask body 13, the self-powered module 7 and the respiration monitoring module 6 face a nose and a mouth of a carrier, the self-powered module 7 is connected to the respiration monitoring module 6 through the micro control unit 9, and the respiration monitoring module 6 is connected to an external device.

The respiration monitoring module 6 comprises an information acquisition module 8, a first flexible piezoelectric type force sensor 4 and a first flexible thermocouple type temperature sensor 5, the input end of the information acquisition module 8 is connected with the first flexible piezoelectric type force sensor 4 and the first flexible thermocouple type temperature sensor 5, the output end of the information acquisition module 8 is connected with external equipment, and the control end of the information acquisition module 8 is connected with the output end of a micro control unit 9; the self-powered module 7 comprises a thermoelectric/piezoelectric energy storage unit 3, array flexible piezoelectric type force sensor 2 and array flexible thermocouple formula temperature sensor 1, array flexible piezoelectric type force sensor 2's output and array flexible thermocouple formula temperature sensor 1's output are connected with thermoelectric/piezoelectricity energy storage unit 3, thermoelectric/piezoelectricity energy storage unit 3's output is connected with micro control unit 9's power source, thermoelectric/piezoelectricity energy storage unit 3's control end is connected with micro control unit 9's output, information acquisition module 8's control end is connected through wireless transmission module 10 with external equipment, thermoelectric/piezoelectricity energy storage unit 3's output is connected with wireless transmission module 10's power source, external equipment includes cell-phone APP11 and 5G cloud medical platform 12.

Referring to fig. 2, the first flexible piezoelectric force sensor 4, the first flexible thermocouple type temperature sensor 5, each second flexible piezoelectric force sensor in the array type flexible piezoelectric force sensor 2, and each second flexible thermocouple type temperature sensor in the array type flexible thermocouple type temperature sensor 1 are all of a laminated composite structure; the piezoelectric film layers in the first flexible piezoelectric type force sensor 4 and the second flexible piezoelectric type force sensor are made of lead zirconate titanate or polyvinylidene fluoride; the materials of the thermoelectric thin film layers in the first flexible thermocouple type temperature sensor 5 and the second flexible thermocouple type temperature sensor are indium tin oxide or indium oxide; the upper electrode and the lower electrode in the first flexible piezoelectric type force sensor 4 and the second flexible piezoelectric type force sensor are both copper electrodes; the flexible substrates of the first flexible piezoelectric type force sensor 4, the second flexible piezoelectric type force sensor, the first flexible thermocouple type temperature sensor 5 and the second flexible thermocouple type temperature sensor are all polyimide or polydimethylsiloxane.

The energy collected by the single second flexible piezoelectric force sensor and the second flexible thermocouple temperature sensor is usually between the level of μ W and mW, the collected voltage is at the level of mV, and the starting and working voltages of the wireless transmission module 10 and the micro control unit 9 usually need a working voltage of more than 1.8V, so the invention adopts an array structure, and combines the second flexible piezoelectric force sensor and the second flexible thermocouple temperature sensor to meet the power supply requirement.

In the respiration monitoring module 6, a detection unit composed of a first flexible piezoelectric type force sensor 4 and a first flexible thermocouple type temperature sensor 5 is placed right in front of the airflow flowing out from the mouth and nose to obtain the maximum positive pressure and the maximum temperature of the exhaled air to the detection unit, as shown in fig. 2, when the airflow exhaled by the human body flows, pressure is applied to the first flexible piezoelectric type force sensor 4, and charges with opposite positive and negative polarities are generated on the surface of a piezoelectric crystal according to the piezoelectric effect. Meanwhile, the hot gas exhaled acts on the hot end of the first flexible thermocouple type temperature sensor 5 for temperature monitoring, the cold end of the first flexible thermocouple type temperature sensor is exposed in the air, according to the Seebeck effect, when the temperature difference occurs between the cold end and the hot end, a voltage signal is output, the two obtained voltage values are compared with a calibrated standard sensor, real-time detection of positive gas pressure and temperature can be achieved, the breathing frequency, depth and airflow temperature of a carrier are calculated, and health state monitoring of the carrier is achieved.