CN108572013A

CN108572013A - Smoking capacity monitoring device and smoking capacity monitor system

Info

Publication number: CN108572013A
Application number: CN201710208191.4A
Authority: CN
Inventors: 徐传毅; 钟强
Original assignee: Nazhiyuan Technology Tangshan Co Ltd
Current assignee: Nazhiyuan Technology Tangshan Co Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2018-09-25
Anticipated expiration: 2037-03-31
Also published as: CN108572013B

Abstract

The invention discloses a kind of smoking capacity monitoring devices and smoking capacity to monitor system, including：Cigarette holder ontology, gas flow transducer and signal analyze computing module；Wherein, cigarette holder ontology is supplied to user for the gas channel by smog along cigarette holder body interior；Gas flow transducer is set in the gas channel of cigarette holder body interior, and the pressure conversion of the airflow function for generating user's smoking on it is stream pressure electric signal output；Signal analyzes computing module, is electrically connected with gas flow transducer, the smoking information for determining user according to stream pressure electric signal.Smoking capacity monitoring device provided by the invention and smoking capacity monitoring system solve the problems, such as that smoking information monitoring result is inaccurate in the prior art, monitoring type is single and monitoring process time and effort consuming, a variety of smoking information in user's smoking process can be easily and accurately monitored, the monitoring for the smoking information of user brings many facilities.

Description

Smoking amount monitoring device and smoking amount monitoring system

Technical Field

The invention relates to the technical field of sensors, in particular to a smoking amount monitoring device and a smoking amount monitoring system.

Background

At present, smoking is regarded as a killer threatening the health of human beings, and more attention is paid to the society in various aspects. According to statistics, about 3.2 hundred million smokers exist in China, and the number of people dying of smoking related diseases in China every year reaches 136.6 ten thousand. Therefore, as people's health awareness increases, the number of smokers willing to gradually reduce smoking until quitting smoking gradually increases.

However, in the process of implementing the invention, the inventor finds that in the auxiliary treatment of smoking cessation aiming at the smoking cessation people, the traditional manual counting method is mostly adopted, namely: the method is characterized in that the smoker is reminded to reduce smoking by manually calculating the smoking amount inhaled by the smoker and the daily smoking frequency of the smoker through a smoker or a monitor, is time-consuming and labor-consuming, and has the problem of inaccurate counting due to various reasons, so that the smoking cessation of the smoker is influenced or the judgment of a follow-up doctor on diseases caused by smoking is influenced; in addition, some monitoring devices designed for smoking cessation people for reminding users of smoking mouth number also appear in the prior art, but the monitoring devices can only remind the smoking times of the users, but cannot clearly reflect the smoking amount of the users, and the smoking amount of the users is just a primary factor which harms the health of smokers and causes diseases.

Therefore, the monitoring device and the smoking amount monitoring system which can sensitively and accurately monitor the smoking amount of the user are lacked in the prior art.

Disclosure of Invention

The invention aims to provide a smoking amount monitoring device and a smoking amount monitoring system aiming at the defects of the prior art, and aims to solve the problems that the smoking information monitoring result is inaccurate, the monitoring type is single, and the monitoring process is time-consuming and labor-consuming in the prior art.

According to an aspect of the present invention, there is provided a smoking amount monitoring device comprising: the cigarette holder comprises a cigarette holder body, an airflow sensor and a signal analysis and calculation module; wherein the mouthpiece body is configured to provide smoke to a user along an airflow channel inside the mouthpiece body; the airflow sensor is arranged in an airflow channel in the cigarette holder body and used for converting the pressure of airflow generated by smoking of a user on the airflow sensor into an airflow pressure electric signal and outputting the airflow pressure electric signal; and the signal analysis and calculation module is electrically connected with the airflow sensor and used for determining the smoking information of the user according to the airflow pressure electric signal.

According to another aspect of the present invention, there is provided a smoking amount monitoring system comprising: the smoking amount monitoring device and the terminal device; wherein,

the terminal equipment is connected with the smoking amount monitoring device in a wired communication or wireless communication mode and is used for storing and displaying the smoking information of the user obtained by the smoking amount monitoring device and/or sending a remote control instruction for controlling the smoking amount monitoring device.

According to another aspect of the present invention, there is also provided a smoking amount monitoring system comprising: the smoking amount monitoring device and the large database service platform are arranged on the base; wherein,

and the big database service platform is connected with the smoking amount monitoring device in a wired communication or wireless communication mode and used for receiving and storing the smoking information of the user obtained by the smoking amount monitoring device through analysis and calculation, analyzing and comparing the received smoking information of the user with the smoking information of the user in the big database service platform to obtain user analysis information, and sending the user analysis information to the smoking amount monitoring device.

In the smoking amount monitoring device and the smoking amount monitoring system provided by the invention, the cigarette holder body is used as an airflow channel for smoking smoke, airflow acting force generated when a user smokes is sensed through the airflow sensor arranged in the airflow channel in the cigarette holder body, the airflow acting force is converted into an airflow pressure electric signal, the airflow pressure electric signal is output to the signal analysis and calculation module, and finally, the signal analysis and calculation module determines the smoking information of the user according to the received airflow pressure electric signal. Therefore, the invention can obtain the corresponding airflow pressure electric signal according to the airflow acting force generated by the user during smoking, and obtain various smoking information of the user during smoking by analyzing and calculating the airflow pressure electric signal. Therefore, the smoking amount monitoring device and the smoking amount monitoring system provided by the invention not only effectively improve the sensitivity and accuracy of smoking information monitoring, but also increase the monitoring types of smoking information; on the other hand, the smoking amount monitoring device and the smoking amount monitoring system provided by the invention are convenient and simple to use, and the energy consumed by a user in the monitoring process is effectively reduced; in addition, the smoking amount monitoring device and the smoking amount monitoring system provided by the invention also have the advantages of simple structure and manufacturing process, low cost and suitability for large-scale industrial production.

Drawings

Fig. 1 is a schematic structural view of a smoking amount monitoring device according to an embodiment of the present invention;

fig. 2 is a functional block diagram of a smoking amount monitoring device according to an embodiment of the present invention;

fig. 3 is a functional structure block diagram of a signal preprocessing module in the smoking amount monitoring device according to the first embodiment of the present invention;

fig. 4 is a schematic perspective view of a smoking amount monitoring device according to an embodiment of the present invention;

fig. 5 is a functional structure block diagram of a smoking amount monitoring device according to a second embodiment of the present invention;

fig. 6 is a functional structure block diagram of a smoking amount monitoring device provided in the third embodiment of the present invention;

fig. 7a is a functional block diagram of a smoking amount monitoring system using the smoking amount monitoring device shown in fig. 6 according to the third embodiment of the present invention;

fig. 7b is a block diagram of another functional structure of a smoking amount monitoring system using the smoking amount monitoring device shown in fig. 6 according to the third embodiment of the present invention;

fig. 8a is a schematic perspective view of an exemplary airflow sensor in the smoking amount monitoring device according to the present invention;

FIG. 8b is a schematic cross-sectional view of an exemplary airflow sensor in the smoking amount monitoring device according to the present invention;

fig. 9 is a schematic structural view of a second exemplary airflow sensor in the smoking amount monitoring device according to the present invention;

fig. 10 is a schematic cross-sectional view of an exemplary airflow sensor in the smoking amount monitoring device according to the present invention;

fig. 11 is an exploded view schematically illustrating an exemplary air flow sensor in the smoking amount monitoring device according to the present invention;

fig. 12 is an assembled structural view of an exemplary air flow sensor in the smoking amount monitoring device according to the present invention;

fig. 13 is a schematic view of a first polymer film of an exemplary air flow sensor in the smoking amount monitoring device according to the present invention;

fig. 14 is a schematic diagram of friction between a diaphragm and an electrode after a first polymer film of an airflow sensor in the smoking amount monitoring device according to the fourth embodiment of the present invention is assembled with the electrode.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention, but the present invention is not limited thereto.

The invention provides a smoking amount monitoring device, which comprises: the cigarette holder comprises a cigarette holder body, an airflow sensor and a signal analysis and calculation module; wherein the mouthpiece body is configured to provide smoke to a user along an airflow channel inside the mouthpiece body; the airflow sensor is arranged in an airflow channel in the cigarette holder body and used for converting the pressure of airflow generated by smoking of a user on the airflow sensor into an airflow pressure electric signal and outputting the airflow pressure electric signal; and the signal analysis and calculation module is electrically connected with the airflow sensor and used for determining the smoking information of the user according to the airflow pressure electric signal.

Fig. 1 is a schematic structural diagram of a smoking amount monitoring device according to a first embodiment of the present invention, and fig. 2 is a functional structural block diagram of the smoking amount monitoring device according to the first embodiment of the present invention. As shown in fig. 1 and 2, the apparatus includes: a mouthpiece body 110, an airflow sensor 120, and a signal analysis and calculation module 130.

The mouthpiece body 110 will be described first. The mouthpiece body 110 is connected to an aerosol generating component (not shown) for providing aerosol generated by the aerosol generating component (e.g., a cigarette, e-cigarette, pipe, etc. associated aerosol generating component) to a user through an airflow channel within the mouthpiece body 110.

The shape of the mouthpiece body 110 may be a hollow cylindrical structure or a hollow prismatic structure, and of course, may be other shapes, which is not limited in the present invention. It should be noted, however, that regardless of the shape of the mouthpiece body 110, it is necessary to ensure that the mouthpiece body 110 is disposed at the end of the aerosol generating component where the user inhales the aerosol, such that the mouthpiece body 110 cooperates with the aerosol generating component.

In particular embodiments, since the shape of the aerosol generating component is often a cylindrical structure, accordingly, the shape of the mouthpiece body 110 is preferably a hollow cylindrical structure; meanwhile, since the outer diameters of the ends of the different kinds of smoke generating components for the user to smoke may be different, a person skilled in the art may flexibly design the cigarette holder body 110 with various inner diameters for the different kinds of smoke generating components, for example, when the cigarette holder body 110 with a hollow cylindrical structure is sleeved on the end of the smoke generating component with a cylindrical structure for the user to smoke, the inner diameter of the cigarette holder body 110 should be greater than or equal to the outer diameter of the end of the smoke generating component for the user to smoke, thereby ensuring that the cigarette holder body 110 is used in cooperation with the smoke generating component. That is, the present invention does not limit the shape and size of the mouthpiece body 110 as long as the airflow channel inside the mouthpiece body 110 is in communication with the end of the aerosol generating component for the user to inhale the aerosol.

When the mouthpiece body 110 is connected with the smoke generating component, the mouthpiece body 110 may be detachably connected to one end of the smoke generating component for a user to smoke, so as to communicate with the smoke generating component, and the connection mode has strong flexibility and selectivity, so that the mouthpiece body 110 can be connected and combined with different smoke generating components; or, the cigarette holder body 110 can be integrally arranged on the smoke generating component, and the connection mode can reduce the influence of external factors on the smoke quantity monitoring device, so that the monitoring result is more accurate. It should be noted that the connection manner of the mouthpiece body 110 may be various, and the present invention is not limited thereto.

The airflow sensor 120 is described below. The airflow sensor 120 is disposed in the airflow channel inside the mouthpiece body 110, and is configured to convert the pressure exerted on the mouthpiece body 110 by the airflow generated by the user smoking into an airflow pressure electrical signal (i.e., an airflow pressure electrical signal) and output the airflow pressure electrical signal.

The airflow sensor 120 can be detachably arranged in the airflow channel inside the mouthpiece body 110, and the arrangement is flexible and convenient, so that the airflow sensor 120 can be detached and replaced according to actual conditions (for example, a user wants to clean the airflow sensor 120 after using a product for a period of time); or, the airflow sensor 120 may be disposed in the airflow channel inside the mouthpiece body 110 in a pasting manner, which is simple and easy to implement, and can effectively prevent the airflow sensor 120 from falling off, so that the airflow sensor 120 is firmer and the working stability of the airflow sensor 120 is increased. It should be noted that the present invention is not limited to the arrangement of the airflow sensor 120 in the airflow channel inside the mouthpiece body 110, and those skilled in the art can flexibly select the arrangement according to design requirements.

In addition, one airflow sensor 120 may be provided in the airflow passage inside the mouthpiece body 110, or a plurality of airflow sensors 120 may be provided. The advantage of providing an airflow sensor 120 in the airflow channel inside the mouthpiece body 110 is that it is simple in structure and easy to implement, making the smoking amount monitoring device simpler in structure; the advantage of providing a plurality of airflow sensors 120 in the airflow channel inside the mouthpiece body 110 is that the pressure of the airflow generated by the smoking of the user acting on the airflow sensors 120 can be sensed in different directions, so that the smoking amount monitoring device is more sensitive and the monitoring result is more accurate.

When an airflow sensor 120 is disposed in the airflow channel inside the mouthpiece body 110, the airflow sensor 120 is electrically connected to the signal analyzing and calculating module 130, and the airflow pressure electrical signal output by the airflow sensor 120 is preprocessed by the signal analyzing and calculating module 130 and then analyzed and calculated to obtain the smoking information of the user; when a plurality of airflow sensors 120 are disposed in the airflow channel inside the mouthpiece body 110, the airflow sensors 120 may be electrically connected to the signal analyzing and calculating module 130, and a plurality of airflow pressure electrical signals output by the airflow sensors 120 are preprocessed by the signal analyzing and calculating module 130, and then are analyzed and calculated to obtain the smoking information of the user. It should be noted that, when the plurality of airflow sensors 120 are disposed in the airflow channel inside the mouthpiece body 110, a person skilled in the art may set the connection relationship between the plurality of airflow sensors 120 and the signal analysis and calculation module 130 according to practical situations, and the present invention is not limited thereto.

Further, when a plurality of airflow sensors 120 are provided in the airflow channel inside the mouthpiece body 110, the plurality of airflow sensors 120 may be provided in the airflow channel inside the mouthpiece body 110 in a longitudinally overlapping manner along the longitudinal direction of the mouthpiece body 110; alternatively, the plurality of airflow sensors 120 may be disposed in an airflow channel inside the mouthpiece body 110 in a tangential arrangement or other type of arrangement along a lateral direction of the mouthpiece body 110. It should be noted that, when the plurality of airflow sensors 120 are disposed in the airflow channel inside the mouthpiece body 110, a person skilled in the art may arrange the plurality of airflow sensors 120 disposed in the airflow channel inside the mouthpiece body 110 according to actual situations, and the present invention is not limited to this.

The signal analysis calculation module 130 is described below. The signal analyzing and calculating module 130 is electrically connected to the airflow sensor 120 and is configured to determine smoking information of the user according to the airflow pressure electrical signal output by the airflow sensor 120. Wherein the smoking information of the user may include: the smoking information of the user comprises user single smoking time, user total smoking time, user single smoking amount, user total smoking amount, user smoking mouth number, user smoking interval and the like.

Optionally, as shown in fig. 2, the signal analysis calculating module 130 further includes: a signal preprocessing module 131 and a central control module 132. The signal preprocessing module 131 is electrically connected to the airflow sensor 120, and is configured to preprocess the airflow pressure electrical signal output by the airflow sensor 120; the central control module 132 is electrically connected to the signal preprocessing module 131, and is configured to receive the electric signal of airflow pressure preprocessed by the signal preprocessing module 131, and analyze and calculate smoking information of the user according to the electric signal of airflow pressure preprocessed by the signal preprocessing module 131.

The number of the signal preprocessing modules 131 may be one or multiple, and those skilled in the art may select the number according to needs, which is not limited herein. However, it should be noted that the number of the signal preprocessing modules 131 should be the same as the number of the air flow sensors 120, so that the signal preprocessing modules 131 can be connected to the air flow sensors 120 in a one-to-one correspondence.

Specifically, if one airflow sensor 120 is disposed in the airflow channel inside the mouthpiece body 110, the number of the signal preprocessing modules 131 in the signal analyzing and calculating module 130 is only one, and the signal preprocessing modules 131 are electrically connected to the airflow sensor 120 and the central control module 132 respectively; if a plurality of airflow sensors 120 are disposed in the airflow channel inside the mouthpiece body 110, the number of the signal preprocessing modules 131 in the signal analyzing and calculating module 130 is the same as or more than the number of the airflow sensors 120 disposed in the airflow channel inside the mouthpiece body 110, and the signal preprocessing modules 131 are respectively electrically connected to the airflow sensors 120 in a one-to-one correspondence manner, and meanwhile, the signal preprocessing modules 131 are also respectively electrically connected to the central control module 132 in the signal analyzing and calculating module 130, for example: if 2 airflow sensors 120 are disposed in the airflow channel inside the mouthpiece body 110, the number of the signal preprocessing modules 131 in the signal analyzing and calculating module 130 is the same as the number of the 2 airflow sensors 120 disposed in the airflow channel inside the mouthpiece body 110, and is also 2, and the input ends of the 2 signal preprocessing modules 131 are electrically connected to the output ends of the 2 airflow sensors 120 in a one-to-one correspondence manner, and meanwhile, the output ends of the 2 signal preprocessing modules 131 are electrically connected to different signal input ends of the central control module 132 in the signal analyzing and calculating module 130 in a one-to-one correspondence manner.

Optionally, as shown in fig. 3, the signal preprocessing module 131 includes: a rectifying module 1311, a filtering module 1312, an amplifying module 1313 and an analog-to-digital conversion module 1314. The rectification module 1311 is electrically connected to the airflow sensor 120, and is configured to rectify the airflow pressure electrical signal output by the airflow sensor 120; the filtering module 1312 is electrically connected to the rectifying module 1311 and is configured to filter the rectified airflow pressure electrical signal to filter interference noise; the amplifying module 1313 is electrically connected to the filtering module 1312, and is configured to amplify the filtered airflow pressure electrical signal; the analog-to-digital conversion module 1314 is electrically connected to the amplification module 1313, and is configured to convert the analog electrical airflow pressure signal output by the amplification module 1313 into a digital electrical airflow pressure signal, and output the converted digital electrical airflow pressure signal to the central control module 132. It should be noted that the above modules (i.e., the rectifying module 1311, the filtering module 1312, the amplifying module 1313 and the analog-to-digital conversion module 1314) can be selected according to the needs of those skilled in the art, and are not limited herein. For example, if the airflow pressure electrical signal output by the airflow sensor 120 does not need to be rectified, the rectifying module 1311 may be omitted.

Optionally, as shown in fig. 2, the central control module 132 is further configured to: receiving the electrical signal of the airflow pressure preprocessed by the signal preprocessing module 131 and counting the electrical signal of the airflow pressure to obtain at least one of the following statistical information: the peak value of the airflow pressure electric signal, the single duration of the airflow pressure electric signal, the total duration of the airflow pressure electric signal and the generation times of the airflow pressure electric signal; the central control module 132 is further configured to: determining smoking information of the user according to the statistical information, wherein the smoking information of the user comprises at least one of the following items: the smoking time of the user is one time, the total smoking time of the user is one time, the single smoking amount of the user is one time, the total smoking amount of the user is one time, the smoking mouth number of the user is one time, and the smoking interval of the user is one time.

Optionally, as shown in fig. 4, the smoking amount monitoring device according to the first embodiment further includes: the aerosol generating means 140. One end of the smoke generating component 140, which is used for the user to smoke, is connected to the mouthpiece body 110, and is used for generating smoke for the user to smoke. Specifically, the aerosol generating component 140 may be detachably connected to the mouthpiece body 110, or the aerosol generating component 140 may be provided as an integrated structure with the mouthpiece body 110, and the connection manner may be various, and the connection manner of the aerosol generating component 140 and the mouthpiece body 110 is not limited by the present invention.

Fig. 5 is a functional block diagram of a smoking amount monitoring device according to a second embodiment of the present invention, and as shown in fig. 5, the smoking amount monitoring device according to the second embodiment is different from the smoking amount monitoring device according to the first embodiment in that a signal analyzing and calculating module 130 in the smoking amount monitoring device according to the second embodiment further includes a wireless transceiver module 133 and an interactive function module 134 in addition to a signal preprocessing module 131 and a central control module 132.

The wireless transceiver module 133 is electrically connected to the central control module 132, and is configured to send the smoking information of the user output by the central control module 132 to the preset receiving device in a wireless communication manner, so that the user and/or a doctor and/or a guardian on the preset receiving device side can view the smoking information. Specifically, the wireless transceiver module 133 is electrically connected to the central control module 132, and is configured to acquire the smoking information of the user determined in the central control module 132 and send the acquired smoking information of the user to the preset receiving device. The preset receiving device can be a mobile terminal such as a mobile phone and a tablet personal computer, a terminal device such as a computer and a PC, and a large database service platform. In this way, the wireless transceiver module 133 can transmit the smoking information of the user to a specific preset receiving device, so that the user and/or a doctor and/or a guardian can conveniently check the smoking information; moreover, the user can further analyze the received smoking information of the user in the preset receiving device, for example, the information of the smoking frequency, the smoking peak period and the like of the user is analyzed, so that the user and/or a doctor and/or a guardian can further know the smoking condition of the user conveniently.

The interactive function module 134 is electrically connected to the central control module 132, and is configured to send a user interaction instruction to the central control module 132. Specifically, the interactive function module 134 is electrically connected to the central control module 132 for sending a user interactive command to the central control module 132. The user interaction instruction comprises at least one of the following: the smoking information setting method comprises an opening instruction, a closing instruction, a user information initialization instruction and a smoking information setting instruction of a user. The opening and closing instruction is used for controlling the opening or closing of the central control module 132 so as to control the opening or closing of the monitoring process; the user information initialization instruction is used for clearing the monitored smoking information of the user or establishing new smoking information monitoring data of the user; the smoking information setting instruction of the user is used for controlling the monitoring type or the monitoring mode of the smoking information of the user, for example, the user can select one or more of the smoking information of the user, such as the smoking time information of the user, the smoking mouth number information of the user, the time interval information of two adjacent smoking times and the like, so that the selectivity and the flexibility of the monitoring information are increased. In addition, the identification information of the user can be preset through the interactive function module 134, so as to facilitate continuous monitoring of the same user.

Fig. 6 is a functional structure block diagram of a smoking amount monitoring device according to a third embodiment of the present invention, and as shown in fig. 6, the smoking amount monitoring device according to the third embodiment is different from the smoking amount monitoring device according to the second embodiment in that: the signal analysis and calculation module 130 in the smoking amount monitoring device according to the second embodiment further includes: a display module 135 and an alarm module 136.

The display module 135 is electrically connected to the central control module 132, and is configured to display the smoking information of the user obtained by the central control module 132. Specifically, the display module 135 is electrically connected to the central control module 132 for acquiring and displaying the smoking information of the user in the central control module 132. The manner of displaying the smoking information of the user may be various, such as a text display, a graph display, etc., and the present invention is not limited thereto.

The alarm module 136 is electrically connected to the central control module 132, and is configured to perform alarm prompting according to an alarm trigger signal sent by the central control module 132; in this case, the central control module 132 is further configured to: when the smoking information of the user conforms to the preset alarm rule, an alarm trigger signal is sent to the alarm module 136. Specifically, since the central control module 132 calculates and determines the smoking information of the user, a preset alarm rule may be set in the central control module 132, after the central control module 132 calculates and determines the smoking information of the user, the central control module 132 automatically determines whether the smoking information of the user meets the preset alarm rule, and if the determination result is yes, sends an alarm trigger signal to the alarm module 136. For example, one or two of a smoking amount threshold and a smoking port number threshold are set in the preset alarm rule, when the continuous smoking amount of the user exceeds the preset smoking amount threshold and/or the smoking port number of the user within a preset time range exceeds the preset smoking port number threshold, an alarm trigger signal is sent, and the alarm module 136 gives an alarm according to the alarm trigger signal, so as to achieve the purpose of reminding the user that the smoking information exceeds the early warning range and warning the user. Optionally, the alarm prompt mode is a voice prompt and/or a light prompt, and the like, which is not limited in the present invention.

It should be noted that the wireless transceiver module 133, the interaction function module 134, the display module 135 and the alarm module 136 in the second and third embodiments may be selected according to design requirements of those skilled in the art, and the present invention is not limited thereto. For example, if communication with the predetermined receiving device is not required or communication with the predetermined receiving device is performed in a wired connection manner, the wireless transceiving module 133 may be omitted; if the smoking amount monitoring device does not need to be manually controlled, the interactive function module 134 can be omitted; if the smoking information of the user is not required to be displayed, the display module 135 may be omitted; if the alarm function is not required, the alarm module 136 may be omitted.

In addition, in the first to third embodiments, in order to facilitate continuous monitoring of the same smoker, a receiving cavity may be further provided on the mouthpiece body of the smoking amount monitoring device for inserting an aerosol generating component capable of generating aerosol. Wherein, the shape, size and depth of the accommodating cavity can be set according to the brand of the smoke generating component (generally, a cigarette), and the accommodating cavity can be further internally provided with a fine adjustment element so as to adjust the size of the accommodating cavity according to the thickness of the cigarette. In other words, the cigarette holder body in the embodiment of the invention can be a cigarette holder part carried on each cigarette, or can be an additional component independent from each cigarette, the additional component is specially used for inserting the cigarettes, and the material of the additional component can be various materials such as plastics, ceramics and the like. When the holding cavity is further arranged on the cigarette holder body, the same smoker does not need to replace the cigarette holder body even if inhaling a large number of cigarettes every day, so that the smoker can be continuously monitored only by arranging the airflow sensor, the signal analysis and calculation module and other components on the cigarette holder body, and the cigarette holder is low in cost and convenient to use.

It should be noted that, in the smoking amount monitoring devices of the first to third embodiments, the power supply module inside the central control module in the signal analysis and calculation module is used to supply power to each module in the smoking amount monitoring devices of the first to third embodiments, and therefore, not shown in the figure, it is needless to say that a power supply module may be separately provided in the signal analysis and calculation module to achieve the purpose of supplying power to each module in the smoking amount monitoring devices of the first to third embodiments, and the power supply module may be directly electrically connected to the central control module, or may be connected to the central control module through the interaction function module, and the present disclosure is not limited herein.

The specific working principle of the smoking amount monitoring device provided by the invention is explained in detail below. For convenience of explanation, the following description will be given taking monitoring of the smoking amount of the user as an example.

In the first case: if an airflow sensor is arranged in the airflow channel inside the cigarette holder body, a signal preprocessing module electrically connected with the airflow sensor is arranged in the signal analysis and calculation module.

In the second embodiment and the third embodiment, the user can control the central control module to start working through the interactive function module; the user can also set the smoking information of the user to be monitored through the interactive function module, for example, the interactive function module sends a user information initialization instruction to the central control module, so that the previously monitored and recorded smoking information of the user can be cleared or new smoking information of the user can be reestablished; if the interactive function module sends a smoking information setting instruction of the user to the central control module, the smoking amount of the user, the smoking time of each time of the user and the smoking time interval between two times of smoking connected with the user can be selected to be monitored. If the signal analysis and calculation module is not provided with an interactive function module (as shown in the first embodiment), the operation is started according to the preset smoking information of the user. The following description will be given taking monitoring of the smoking amount of the user as an example.

When a user smokes, an airflow sensor arranged in an airflow channel in the cigarette holder body senses the pressure of airflow generated by smoking of the user on the airflow sensor, the pressure on the airflow sensor is converted into a corresponding airflow pressure electric signal to be output to a signal preprocessing module which is correspondingly and electrically connected with the airflow sensor, and the airflow pressure electric signal output by the airflow sensor is preprocessed by the signal preprocessing module. When the central control module receives the airflow pressure electric signal preprocessed by the signal preprocessing module, a timer arranged in the central control module is started to time, and meanwhile, the central control module analyzes and calculates the peak value of the airflow pressure electric signal, so that the flow speed and the flow of airflow generated by smoking of a user are calculated according to the obtained peak value of the airflow pressure electric signal, and the smoking amount Y1 of the user in unit time when the user smokes the first cigarette is calculated through analysis.

When the user stops smoking, although no airflow generated by the user smoking acts on the airflow sensor, in order to recover the initial state, the airflow sensor automatically generates an initial state electric signal in the direction opposite to the airflow pressure electric signal output by the airflow sensor when the user smokes, and after the signal preprocessing module receives the initial state electric signal, the signal preprocessing module preprocesses the initial state electric signal and outputs the initial state electric signal to the central control module. When the central control module receives the initial state electric signal preprocessed by the signal preprocessing module, stopping a timer arranged in the central control module from timing to obtain first timing time X1, wherein the first timing time X1 is the time for a user to smoke the first cigarette; meanwhile, a counter arranged in the central control module is started to count, and the first smoking port number C1 is obtained.

The central control module judges whether the signal preprocessing module preprocesses the airflow pressure electric signal generated by the user smoking within the preset time interval or not. Wherein, a person skilled in the art can set the preset time interval according to actual needs, and the preset time interval is not limited herein. For example, the preset time interval may be 1 s. If the airflow pressure electric signal generated by the user smoking after the signal preprocessing module is preprocessed is judged to be received again in the preset time interval, the fact that the user smokes the second cigarette is indicated, at the moment, the central control module starts a timer arranged in the central control module to continue timing, meanwhile, the central control module can analyze and calculate the peak value of the airflow pressure electric signal, so that the flow speed and the flow of the airflow generated by the user smoking at the time are calculated according to the obtained peak value of the airflow pressure electric signal, and the smoking amount Y2 of the user in unit time when the user smokes the second cigarette is calculated through analysis. When the central control module receives the expiratory airflow pressure electric signal preprocessed by the signal preprocessing module, the central control module stops a timer arranged in the central control module from timing to obtain second timing time X2, wherein the second timing time X2 is the time for a user to inhale a second mouth of smoke; meanwhile, the central control module starts a counter arranged in the central control module to count up, and a second smoking port number C2 is obtained.

The central control module can judge whether an air flow pressure electric signal generated by the user smoking preprocessed by the preprocessing module can be received within a preset time interval. If yes, the central control module starts the timer arranged in the central control module again to continue timing, and the process is repeated; if not, the central control module calculates to obtain the total smoking time X of the user, the number C of the smoking openings of the user is C2 (namely 2 times), and the total smoking amount S of the user, so that the total smoking time information of the user, the number information of the smoking openings of the user and the total smoking amount information of the user are obtained. Wherein, X is 1+ X2, and S is 1 × Y1+ X2 × Y2.

It should be noted that, when a user smokes, the peak value of the electric signal of the airflow pressure output by one airflow sensor arranged in the airflow channel inside the mouthpiece body corresponds to the flow rate and flow rate of the airflow generated by the user smoking and the smoking amount Y of the user per unit time. When a user smokes, the corresponding relation between the peak value of the airflow pressure electric signal output by one airflow sensor arranged in the airflow channel in the cigarette holder body and the flow speed and flow of the airflow generated by the user smoking and the corresponding relation between the flow speed and flow of the airflow generated by the user smoking and the smoking amount Y of the user in unit time can be preset by a manufacturer for producing the smoking amount monitoring device.

In the second case: the cigarette holder comprises a cigarette holder body and is characterized in that a plurality of airflow sensors are arranged in an airflow channel inside the cigarette holder body, a plurality of signal preprocessing modules are arranged in a signal analysis and calculation module, the number of the airflow sensors arranged in the airflow channel inside the cigarette holder body is the same as that of the airflow sensors arranged in the airflow channel inside the cigarette holder body, the signal preprocessing modules are electrically connected with the airflow sensors in a one-to-one correspondence mode, and meanwhile, the signal preprocessing modules are further electrically connected with a central control module in the signal analysis and calculation module respectively.

When a user smokes, a plurality of airflow sensors arranged in an airflow channel inside the cigarette holder body sense the pressure of airflow generated by smoking of the user on the airflow sensors, the pressure on the airflow sensors is converted into corresponding airflow pressure electric signals to be output to the plurality of signal preprocessing modules electrically connected with the plurality of airflow sensors in a one-to-one correspondence mode, and the airflow pressure electric signals output by the plurality of airflow sensors are preprocessed by the plurality of signal preprocessing modules. When the central control module receives the plurality of airflow pressure electric signals, the central control module starts a timer arranged in the central control module to time according to a first airflow pressure electric signal received in the plurality of airflow pressure electric signals, meanwhile, the central control module analyzes and calculates peak values of the plurality of airflow pressure electric signals respectively, the peak values of the plurality of airflow pressure electric signals are added to calculate an average value, a final peak value of the airflow pressure electric signal is obtained, the flow speed and the flow of airflow generated by smoking of a user are calculated according to the obtained final peak value of the airflow pressure electric signal, and the smoking amount Y1 of the user in unit time when the user smokes a first cigarette is calculated through analysis.

When a user stops smoking, although no airflow generated by the user smoking acts on the airflow sensor outputting the first airflow pressure electric signal, in order to recover the initial state, the airflow sensor automatically generates an initial state electric signal in the direction opposite to the airflow pressure electric signal output by the airflow sensor when the user smokes, and after receiving the initial state electric signal, the signal preprocessing module preprocesses the initial state electric signal and outputs the initial state electric signal to the central control module. When the central control module receives the initial state electric signal preprocessed by the signal preprocessing module, stopping a timer arranged in the central control module from timing to obtain first timing time X1, wherein the first timing time X1 is the time for a user to smoke the first cigarette; meanwhile, a counter arranged in the central control module is started to count, and the first smoking port number C1 is obtained.

The central control module judges whether the preprocessed airflow pressure electric signals output by the airflow sensor outputting the first airflow pressure electric signals when the user smokes are received again in the preset time interval. Wherein, a person skilled in the art can set the preset time interval according to actual needs, and the preset time interval is not limited herein. For example, the preset time interval may be 1 s. If the electric signal of the airflow pressure output by the airflow sensor when the user smokes is judged to be received again in the preset time interval, which indicates that the user smokes for the second time, at the moment, the central control module starts a timer arranged in the central control module to continue timing, meanwhile, the central control module also receives the preprocessed airflow pressure electric signals correspondingly output by other airflow sensors, at the moment, the central control module respectively analyzes and calculates the peak values of a plurality of airflow pressure electric signals correspondingly output by all the airflow sensors, the peak values of the airflow pressure electric signals are added to calculate the average value, and the final peak value of the airflow pressure electric signal is obtained, therefore, the flow speed and the flow of the airflow generated by the user smoking are calculated according to the obtained peak value analysis of the final airflow pressure electric signal, and the smoking amount Y2 of the user in unit time when the user smokes the second cigarette is further calculated through analysis. When the central control module receives the preprocessed airflow pressure electric signal output by the airflow sensor when the user smokes the cigarette, the central control module stops a timer arranged in the central control module from timing to obtain second timing time X2, wherein the second timing time X2 is the time for the user to smoke a second cigarette; meanwhile, the central control module starts a counter arranged in the central control module to count up, and a second smoking port number C2 is obtained.

The central control module can judge whether the electrical signal of the airflow pressure output by the airflow sensor which outputs the first electrical signal of the airflow pressure when the user smokes can also receive the electrical signal of the airflow pressure which is output by the first electrical signal of the airflow pressure after the pretreatment in the preset time interval. If yes, the central control module starts the timer arranged in the central control module again to continue timing, and the process is repeated; if not, the central control module calculates to obtain the total smoking time X of the user, the number C of the smoking openings of the user is C2 (namely 2 times), and the total smoking amount S of the user, so that the total smoking time information of the user, the number information of the smoking openings of the user and the total smoking amount information of the user are obtained. Wherein, X is 1+ X2, and S is 1 × Y1+ X2 × Y2.

It should be noted that the average value obtained by adding the peak values of the airflow pressure electrical signals output by the plurality of airflow sensors provided in the airflow passage inside the mouthpiece body when the user smokes is in one-to-one correspondence with the flow velocity and flow rate of the airflow generated by the user smoking and the smoking amount Y of the user per unit time. The average value obtained by adding the peak values of the airflow pressure electric signals output by one airflow sensor arranged in the airflow channel in the cigarette holder body when the user smokes the cigarette, the corresponding relation between the flow speed and the flow of the airflow generated by the user smoking and the smoking amount Y of the user in unit time can be preset by a manufacturer for producing the smoking amount monitoring device.

Further, it should be noted that, in the above two cases, when the airflow generated by the smoking of the user acts on a friction-electric airflow sensor, the airflow pressure electrical signal output by the friction-electric airflow sensor gradually increases with the gradual increase of the airflow pressure applied thereon, but when the airflow pressure applied on the friction-electric airflow sensor reaches a steady state (e.g. the airflow pressure applied on the friction-electric airflow sensor is constant), the airflow pressure electrical signal output by the friction-electric airflow sensor gradually decreases until the airflow pressure electrical signal returns to the original state (e.g. the airflow pressure electrical signal returns to 0) and continues to remain in the original state; when the airflow pressure applied to the friction-generating airflow sensor is zero, the original state is changed, and at this time, the friction-generating airflow sensor outputs an initial state electrical signal opposite to the airflow pressure electrical signal generated when the user smokes, so that in order to accurately monitor the smoking time of the user and thus the smoking amount of the user, the initial state electrical signal needs to be monitored, and thus the termination time of the user completing one bite of smoking is determined.

Fig. 7a is a functional block diagram of a smoking amount monitoring system using the smoking amount monitoring device shown in fig. 6 according to the third embodiment of the present invention. As shown in fig. 7a, the smoking amount monitoring system includes: a smoking amount monitoring device 710 and a terminal device 720. Wherein, the smoking amount monitoring device 710 is the smoking amount monitoring device provided by the third embodiment of the invention shown in fig. 6; the terminal device 720 is connected to the smoking amount monitoring device 710 in a wireless communication manner, and is configured to store and display the smoking information of the user obtained by the smoking amount monitoring device 710, and/or send a remote control instruction for controlling the smoking amount monitoring device 710.

Specifically, the terminal device 720 is connected to the wireless transceiver module 133 in the smoking amount monitoring device 710 in a wireless communication manner, and is configured to store and display the smoking information of the user sent by the wireless transceiver module 133 in the smoking amount monitoring device 710, and further count information such as the total smoking amount and daily smoking amount of the user according to the received smoking information of the user; on the other hand, the remote control module can be used for responding to the corresponding operation of the user on the terminal device 720 side, sending a remote control instruction to the wireless transceiver module 133 in the smoking amount monitoring device 710, and controlling the on/off and the working mode of the central control module 132 through the remote control instruction, thereby achieving the purpose of controlling the smoking amount monitoring device 710 through the terminal device 720 side. Wherein, the remote control instruction may include: the smoking information setting method comprises relevant instructions such as an opening instruction, a closing instruction, a user information initialization instruction, a smoking information setting instruction of a user and the like. Here, the control mode of sending the remote control command through the terminal device 720 provides another control path for the smoking amount monitoring device 710 for the user, which is convenient for the user to use.

In addition, the terminal device 720 may be further connected to the smoking amount monitoring device 710 in a wired communication manner, so the smoking amount monitoring device 710 will not include the wireless transceiver module 133, that is, the communication between the terminal device 720 and the wireless transceiver module 133 will be changed to the communication between the terminal device 720 and the central control module 132 of the smoking amount monitoring device 710, and for the communication between the terminal device 720 and the central control module 132 of the smoking amount monitoring device 710, the communication between the terminal device 720 and the wireless transceiver module 133 can be referred to, which is not described herein again.

The terminal device 720 includes a mobile terminal device such as a mobile phone and a tablet computer, or a terminal device related to a computer and a PC. Specifically, when the terminal device 720 is used to query the smoking information of the user, a specific website may be set up, and the user may query the smoking information of the user on a webpage by logging in the website, or may further set a specific APP, and count the smoking information of the user by the set specific APP. It should be noted that, the query mode of the smoking information of the user is set by those skilled in the art according to the actual situation, and the present invention is not limited to this.

In addition, in the present invention, the terminal device 720 can be connected to the smoking amount monitoring device by a short-range communication method such as bluetooth, and the smoking amount information of the user obtained by the nearby smoking amount monitoring device can be acquired, which is particularly suitable for a scenario where the smoker himself or herself monitors, since the terminal device 720 of the smoker himself or herself is fixed and the smoking amount monitoring device connected by bluetooth around the terminal device 720 is owned by the smoker himself or herself, it is ensured that the smoking information of the user received each time is the information of the smoker himself or herself, and the purpose of continuously monitoring the same smoker is achieved. Or, the corresponding relationship between the terminal device 720 and the smoking amount monitoring device may be preset to realize continuous monitoring of the same smoking amount monitoring device, and the method is also suitable for a remote monitoring scene of the family of smokers.

Fig. 7b is a block diagram of another functional structure of a smoking amount monitoring system using the smoking amount monitoring device shown in fig. 6 according to the third embodiment of the present invention. As shown in fig. 7b, the smoking amount monitoring system shown in fig. 7b differs from the smoking amount monitoring system shown in fig. 7a in that: the smoking amount monitoring system shown in fig. 7b further comprises a big database service platform 730. Wherein the terminal device 720 is further configured to: sending the received smoking information of the user to the big database service platform 730; the big database service platform 730 is connected with the terminal device 720 in a wireless communication manner, and is used for receiving and storing the smoking information of the user sent by the terminal device 720, analyzing and comparing the received smoking information of the user with smoking monitoring information preset in the big database service platform 730 to determine user analysis information, and sending the user analysis information to the terminal device 720 for the user and/or doctor and/or guardian at the terminal device 720 side to view or refer, so that the user and/or doctor and/or guardian can know the smoking condition of the user more deeply.

The preset smoking monitoring information may include smoking information of users fed back by a large number of users, and/or smoking monitoring information obtained by performing statistical induction on the smoking information of the users fed back by the large number of users, for example, the grading information of the number of smoking times per day and/or the grading information of the smoking amount; the user analysis information may include a user smoking level determined according to the ranking information, for example, the smoking level may include: higher frequency, medium frequency, lower frequency, etc.

Optionally, the big database service platform 730 may further be connected to the terminal device 720 in a wired communication manner, and then the terminal device 720 does not need to have a wireless transceiving function, and the communication between the big database service platform 730 and the terminal device 720 may be directly completed in a wired communication manner.

In addition, the smoking amount monitoring system shown in fig. 7b may not include the terminal device 720, but only include the large database service platform 730, so that the central control module 132 in the smoking amount monitoring device 710 completes statistics of the smoking information of the user, then the smoking information of the user is sent to the large database service platform 730 through the wireless transceiver module 133 for analysis and comparison to obtain user analysis information, and finally the user analysis information is sent to the central control module 132 through the wireless transceiver module 133, so that the central control module 132 controls the display module 135 to display the user analysis information for the user and/or the doctor and/or the guardian to view or refer, so that the user and/or the doctor and/or the guardian can know the smoking condition of the user more deeply.

It should be understood that the smoking amount monitoring system shown in fig. 7a and 7b may employ not only the smoking amount monitoring device of the third embodiment, but also the smoking amount monitoring device of the first embodiment or the second embodiment, and those skilled in the art may select the device according to the needs, and the invention is not limited thereto.

The smoking amount monitoring system provided by the invention can monitor the air flow generated when the user smokes through the smoking amount monitoring device, can sensitively and accurately monitor the smoking information of the user such as the smoking amount, the smoking time, the smoking mouth number and the like of the user, and realizes the monitoring of the smoking condition of the user. In addition, the smoking amount monitoring system provided by the invention has the advantages of high sensitivity and accuracy, various monitoring information, simple structure and manufacturing process, low cost and suitability for large-scale industrial production.

The airflow sensor in the smoking amount monitoring device can be realized by various structures, and the invention is not limited to the specific form of the airflow sensor. For convenience of understanding, the airflow sensor in the smoking amount monitoring device provided by the present invention is described in detail below with examples one to four. Among them, the first to fourth examples are a friction power generation type airflow sensor.

Example 1

Fig. 8a and 8b are a schematic perspective view and a schematic cross-sectional view of an exemplary airflow sensor in a smoking amount monitoring device according to the present invention. As shown in fig. 8a, the airflow sensor includes: housing 811, diaphragm assembly 812, and electrode assembly 813. Wherein, the housing 811 is a cylindrical structure, and an accommodating chamber is formed inside the housing; as shown in fig. 8b, an air inlet 8111 is formed on a side wall of the housing 811, an air outlet 8112 is formed on a bottom wall of the housing 811, and the air inlet 8111 and the air outlet 8112 are respectively communicated with the accommodating chamber to form an air flow path penetrating through the inside and the outside of the housing 811, so that an air flow generated when a user smokes passes through the air flow path. Two ends of the diaphragm assembly 812 are fixedly arranged in the accommodating chamber inside the housing 811, and a vibration gap is formed between the diaphragm assembly 812 and the bottom wall of the housing 811, and the diaphragm assembly 812 vibrates reciprocally relative to the electrode assembly 813 and the bottom wall of the housing 811 under the driving of the airflow inside the accommodating chamber; the electrode assembly 813 is a signal output end of the airflow sensor, is located in the accommodating chamber inside the housing 811, and is arranged opposite to the diaphragm assembly 812, and the reciprocating diaphragm assembly 812 rubs against the electrode assembly 813 and/or the bottom wall of the housing 811 to generate an airflow pressure electric signal, which is output by the electrode assembly 813.

The diaphragm assembly 812 is a flexible assembly, preferably has a long shape, and the long strip-shaped diaphragm assembly 812 is located in the accommodating chamber inside the housing 811, and two ends of the long strip-shaped diaphragm assembly are fixedly disposed. Specifically, a diaphragm ring 8113, a first gasket 8114 and a second gasket 8115 are disposed in the accommodating chamber inside the housing 811. Wherein, vibrating diaphragm ring 8113 is the annular, and the both ends of vibrating diaphragm subassembly 812 are fixed the setting respectively on vibrating diaphragm ring 8113, and are formed with airflow channel between the side of vibrating diaphragm subassembly 812 and vibrating diaphragm ring 8113, and under the drive of the inside air current of holding chamber, vibrating diaphragm subassembly 812 can be on vibrating diaphragm ring 8113 for the reciprocating vibration of electrode subassembly 813 and the diapire of shell 811. The first gasket 8114 is in a ring shape with a notch and is positioned between the diaphragm ring 8113 and the electrode assembly 813, so that a vibration gap is formed between the diaphragm assembly 812 and the electrode assembly 813; second gasket 8115 is also in the form of a notched ring and is positioned between diaphragm ring 8113 and the bottom wall of housing 811, such that a vibration gap is formed between diaphragm assembly 812 and the bottom wall of housing 811.

Further, the airflow sensor of the present invention may further include a friction film assembly disposed on a lower surface of the electrode assembly 813, the diaphragm assembly 812 may respectively form a vibration gap with the friction film assembly and a bottom wall of the housing 811, and the diaphragm assembly 812 may vibrate reciprocally with respect to the friction film assembly and the bottom wall of the housing 811 under the driving of the airflow inside the accommodating chamber to contact and rub the friction film assembly and/or the bottom wall of the housing 811 to generate an airflow pressure electrical signal.

Example two

Fig. 9 is a schematic structural view of a second exemplary airflow sensor in the smoking amount monitoring device according to the present invention, and as shown in fig. 9, the airflow sensor includes: a shield case 921, an insulating layer 922 provided on a part or all of an inner side surface of the shield case 921, and at least one sensing unit. At least two air vents 9211 are formed in the shielding shell 921, and air flow generated by inhalation of a user passes through the air vents 9211; specifically, one air vent 9211 is opened in the middle of the left and right sides of the shield 921, and the air flow can enter from one air vent 9211 and flow out from the other air vent 9211. The sensing unit includes: at least one pinned layer and a free layer; wherein, at least one layer of fixed layer is arranged on the shielding shell 921; the free layer is provided with a fixed part and a friction part; the fixed part of the free layer is fixedly connected with at least one fixed layer or shielding layer 921; the free layer is rubbed with the at least one fixed layer and/or the shield shell 921 by the rubbing part. At least one of the fixed layers is a signal output terminal of the airflow sensor, or at least one of the fixed layers and the shielding case 921 is a signal output terminal of the airflow sensor.

Fig. 9 only schematically shows a structural schematic diagram that the airflow sensor embodiment includes a sensing unit, and the sensing unit includes: a fixed layer and a free layer 9231. At this time, the air inlet direction of the air flow is parallel to the plane of the fixed layer in the air flow sensor. Specifically, the fixing layer is fixed below the inner side of the shield case 921. The fixed layer is a polymer insulating layer 9233 with one side surface plated with the electrode 9232, and the insulating layer 922 is arranged between the side surface of the polymer insulating layer 9233 plated with the electrode 9232 and the inner side surface of the shielding case 921. The fixed part of the free layer 9231 is fixedly connected with the high polymer insulating layer 9233 through a gasket 9234, the free layer 9231 rubs with the surface of the high polymer insulating layer 9233 on the side not plated with the electrode 9232 and/or the shielding shell 921 through a friction part, and the electrode 9232 and the shielding shell 921 are signal output ends of the airflow sensor.

Example three

Fig. 10 is a schematic cross-sectional view of an exemplary airflow sensor in the smoking amount monitoring device according to the present invention. As shown in fig. 10, the airflow sensor includes: a hollow case 1010, an electrode 1020 provided inside the hollow case 1010, and a first polymer film 1030. The hollow housing 1010 is a hollow structure, and an electrode 1020 and a first polymer film 1030 are sleeved inside the hollow housing. The central axes of the hollow shell 1010, the electrode 1020 and the first polymer film 1030 are located on the same straight line, and the surfaces of the three are separated from each other. The housing 1010 may be a metal housing or a non-metal insulating housing. Structurally, the housing 1010 further includes oppositely disposed first and second end faces 1011, 1012. The first end surface 1011 is provided with at least one air inlet for air to flow in, and the second end surface 1012 is provided with at least one air outlet for air to flow out. Specifically, at least one of the first end surface 1011 and the second end surface 1012 may be integrally disposed on the housing 1010, so as to better protect the internal structure of the airflow sensor; alternatively, at least one of the first end surface 1011 and the second end surface 1012 may be detachably disposed on the housing 1010, so as to facilitate replacement and detachment of the housing by a user.

The electrode 1020 is disposed inside the casing 1010 along the central axis direction of the casing 1010, and the surface thereof may be a metal electrode layer or a non-metal electrode layer. The electrode 1020 may have a solid structure or a hollow structure. Preferably, the interior of the electrode 1020 is a hollow structure, so that a gas channel is formed between the electrode 1020 and the first polymer film 1030 at the same time, and/or a gas channel is formed inside the electrode 1020, and at the same time, the weight of the electrode 1020 with the hollow structure is smaller, so that the whole gas flow sensor is lighter; more preferably, a through hole is further formed in the electrode 1020 to allow the inside and the outside to communicate with each other, so as to increase the size of the gas flow in the gas channel and improve the friction effect. The first polymer film 1030 is a cylindrical film sleeved outside the electrode 1020, and the shape of the first polymer film 1030 is matched with that of the electrode 1020. At least one vibrating diaphragm is further arranged on the first polymer film 1030, and when air flows through the air inlet holes, the air flows drive the vibrating diaphragm to vibrate through the air channel. Each diaphragm has a fixed end integrally connected with the first polymer film 1030 and a free end capable of rubbing with the electrode 1020 under the driving of the airflow. Wherein, the stiff end setting of every vibrating diaphragm is in the one side that is close to the inlet port, and the free end setting of every vibrating diaphragm is in the one side that is close to the venthole, and this kind of setting mode is used for guaranteeing that the air current blows in from the inlet port time, and the air current blows in from the direction of the stiff end of every vibrating diaphragm to can realize better friction effect (inventor discovers in the experiment, when the air current blows in from the direction of vibrating diaphragm stiff end, the effect of shaking and the friction effect of vibrating diaphragm free end are all preferred). Also, the electrode 1020 serves as a signal output terminal of the air flow sensor.

Specifically, the first polymer film 1030 and the electrode 1020 are spaced by a predetermined distance, which is used to form a gas channel between the electrode 1020 and the first polymer film 1030, and at the same time, the distance is also used to provide a sufficient vibration space for the diaphragm on the first polymer film 1030. In specific implementation, the preset distance is controlled to be 0.01-2.0 mm. Under the condition that no gas flows in, no friction is generated between the diaphragm on the first polymer film 1030 and the surface of the electrode 1020, and no induced charge is generated; when the gas to be measured flows in from the gas inlet hole on the first end surface 1011, the eddy current generated by the gas to be measured makes the free end of the diaphragm vibrate, and the free end of the vibration and the surface of the electrode 1020 generate contact separation with corresponding frequency, that is, the diaphragm and the surface of the electrode 1020 generate friction, and further generate induced charges on the electrode 1020. The electrode 1020 serves as a signal output end of the airflow sensor, and a lead connected to the electrode 1020 is disposed on the electrode 1020, so that the induced charges on the surface of the electrode 1020 are output as an induced electrical signal through the lead. The electrode 1020 may form a current loop together with a grounding point in an external circuit, so as to implement the output of the electrical signal in a single electrode manner. The electrical signal includes electrical signal parameters related to a voltage value, a frequency value, and the like. The inventor finds that the larger the gas flow rate of the gas to be detected is, the higher the vibration frequency of the diaphragm is, and the larger the output voltage value and frequency value are. Furthermore, the inventors further found from the measured values that the gas flow rate is in a direct relationship with the voltage value V and the frequency f, that is, a specific voltage value or frequency value corresponds to a certain gas flow rate value, so that the flow rate and the flow rate of the gas can be further obtained by calculating by obtaining the output voltage value and frequency value.

Therefore, the airflow sensor provided by the embodiment is simple in manufacturing process and low in manufacturing cost. In addition, the airflow sensor provided by the invention fully utilizes the inertia effect of the free end of the vibrating diaphragm by further arranging the vibrating diaphragm on the first polymer film, so that the friction effect of friction power generation is increased, and the signal sensitivity is improved.

Example four

Fig. 11 to 14 are schematic structural views each showing a specific structure of an example of the airflow sensor in the smoking amount monitoring device according to the present invention from different angles. Fig. 11 shows an exploded structural diagram of the fourth airflow sensor example, fig. 12 shows an assembled structural diagram of the fourth airflow sensor example, fig. 13 shows a schematic diagram of the first polymer film in the fourth airflow sensor example, and fig. 14 shows a schematic diagram of friction between the diaphragm and the electrode after the first polymer film and the electrode are assembled into a whole in the fourth airflow sensor example. As shown in fig. 11 to 14, the airflow sensor includes: the display device includes a case 1110, and a first polymer film 1130, a support structure 1140, and an electrode 1120 which are sequentially disposed inside the case 1110. The supporting structure 1140 is disposed outside the electrode 1120, the first polymer film 1130 is disposed outside the electrode 1120 and the supporting structure 1140, and the first polymer film 1130 is further disposed with a diaphragm 1131.

Specifically, the case 1110 will be described first. The shape of the case 1110 may be a hollow case having a shape such as a cylindrical shape, a prismatic shape, a circular truncated cone shape, or a truncated pyramid shape, and the shape of the case 1110 is preferably a cylindrical shape. In terms of material, the housing 1110 may be a metal housing or a non-metal insulating housing. Structurally, the housing 1110 further includes a first end surface 1111 and a second end surface 1112. Wherein, the first end surface 1111 is provided with at least one air inlet hole for air flow to flow in; the second end surface is provided with at least one air outlet hole for air flow to flow out. The air inlet holes and the air outlet holes can be multiple in number and can be net-shaped air holes or hole-shaped air holes. As shown in fig. 12, fig. 12 is an assembled structure diagram corresponding to the exploded structure diagram in fig. 11, and as can be seen from fig. 12, the air flow flows in from the air intake holes on the first end surface 1111, wherein the number of the air intake holes is multiple, and the air intake holes are in the shape of hole-shaped air holes. Here, it is to be noted that the shapes and the number of the air inlet holes on the first end surface and the air outlet holes on the second end surface may be set by those skilled in the art according to practical situations, and the present invention is not limited thereto.

The casing 1110 is sleeved with an electrode 1120 and a first polymer film 1130, wherein the positional relationship of the three is as follows: the central axes of the casing 1110, the electrode 1120 and the first polymer film 1130 are located on the same straight line, the inner diameter of the first polymer film 1130 is larger than the outer diameter of the electrode 1120, and the inner diameter of the casing 1110 is larger than the outer diameter of the first polymer film 1130. Namely: a certain gap is formed between the casing 1110 and the first polymer film 1130, and between the first polymer film 1130 and the electrode 1120.

The electrode 1120 and the first polymer film 1130 are described in detail below. The electrode 1120 is first introduced. Specifically, the electrode 1120 is disposed along the central axis direction of the casing 1110, and the shape of the electrode 1120 may be a cylindrical shape, a prismatic shape, a circular truncated cone shape, a truncated pyramid shape, or the like; among them, in order to increase the frictional area of the electrode 1120, the electrode 1120 is preferably shaped like a prism or a pyramid having a flat side surface. For example, as shown in fig. 14, the electrode 1120 shown in fig. 14 has a hollow triangular prism shape. Structurally, the electrode 1120 may have a solid structure or a hollow structure. Preferably, the electrode 1120 has a hollow structure inside, so that a gas channel is formed between the electrode 1120 and the first polymer film 1130 and/or a gas channel is formed inside the electrode 1120, and at the same time, the weight of the electrode 1120 with the hollow structure is smaller, so that the gas flow sensor is lighter; more preferably, a through hole is further formed on the electrode 1120 to allow the inside and the outside of the electrode to communicate with each other, so as to increase the size of the gas flow in the gas channel, thereby further improving the friction effect.

The first polymer film 1130 is described next. Specifically, the shape of the first polymer film 1130 may be various shapes such as a hollow cylinder, a hollow prism, a hollow circular truncated cone, and a hollow truncated cone, in accordance with the shape of the electrode 1120; in order to increase the contact area between the first polymer film 1130 and the electrode 1120 when rubbing against each other, the first polymer film 1130 is preferably in a hollow prism shape or a hollow truncated pyramid shape having a side surface, and the shapes of the first polymer film 1130 and the electrode 1120 are preferably matched with each other. That is, if the electrode 1120 has a cylindrical shape, the first polymer film 1130 has a hollow cylindrical shape; if the electrode 1120 has a triangular prism shape, the first polymer film 1130 has a hollow triangular prism shape, etc. For example, as shown in fig. 14, the first polymer thin film shown in fig. 14 matches the shape of the electrode, and in fig. 14, if the electrode has a triangular prism shape, the shape of the first polymer thin film also corresponds to a hollow triangular prism shape.

Specifically, when the shape of the housing and the electrode is cylindrical or prismatic, and the shape of the first polymer film is hollow cylindrical or hollow prismatic, the inner diameter of the first polymer film is larger than the outer diameter of the electrode, and the inner diameter of the housing is larger than the outer diameter of the first polymer film, so that a gap is formed between the housing 1110 and the first polymer film 1130, and between the first polymer film 1130 and the electrode 1120. When the shell and the electrode are in a circular truncated cone shape or a truncated pyramid shape, and the first polymer film is in a hollow circular truncated cone shape or a hollow truncated pyramid shape, the inner diameter of the upper surface of the first polymer film is larger than the outer diameter of the upper surface of the electrode, and the inner diameter of the upper surface of the shell is larger than the outer diameter of the upper surface of the first polymer film; the inner diameter of the lower surface of the first polymer film is larger than the outer diameter of the lower surface of the electrode, and the inner diameter of the lower surface of the case is larger than the outer diameter of the lower surface of the first polymer film, so that a gap is formed between the case 1110 and the first polymer film 1130 and between the first polymer film 1130 and the electrode 1120. The first polymer film is hollow, that is, the first polymer film is a hollow structure with two ends penetrating through, and in the above, the upper and lower surfaces of the first polymer film refer to: and the surfaces are respectively limited on the first end surface and the second end surface of the shell by two sides of the first high polymer film. Similarly, when the electrode is hollow, the upper and lower surfaces of the electrode are similarly defined.

Structurally, when the first polymer film 1130 has a plurality of side surfaces, at least one diaphragm 1131 is further disposed on each side surface of the first polymer film 1130, as shown in fig. 13, two diaphragms are disposed on each side surface of the first polymer film in fig. 13. Of course, it is understood that, in an implementation, the number of the diaphragms 1131 on each side surface of the first polymer film 1130 is not limited to two, and may be one, or may be multiple, and the specific number is set by a person skilled in the art according to practical situations, and the present invention is not limited thereto. The diaphragm 1131 is specifically configured to: after the gas flow passes through the gas inlet hole, the gas flow enters the gas channel to drive the vibrating membrane 1131 to vibrate. The gas channel may be formed between the electrode and the first polymer film, may be formed inside the electrode, or may be formed between the electrode and the first polymer film and inside the electrode. Specifically, in the first implementation manner, the gas channel is formed in the gap between the electrode 1120 and the first polymer film 1130; in the second implementation manner, in addition to forming the gas channel in the gap between the electrode 1120 and the first polymer film 1130, the gas channel may be further formed inside the electrode 1120, for example, a plurality of through holes communicating inside and outside are formed inside the electrode 1120, or the inside of the electrode 1120 is provided with a hollow structure, etc., in short, the gas channel provided inside the electrode 1120 is more beneficial to the accelerated flow of the gas flow, so as to achieve a more desirable friction effect. The person skilled in the art can flexibly arrange the gas channels as required.

The structure of the diaphragm 1131 is described next. The structure of the diaphragm 1131 is as follows: each of the diaphragms 1131 on the first polymer film 1130 has a fixed end integrally connected to the first polymer film 1130 and a free end capable of rubbing against the electrodes under the driving of the airflow. Wherein, the stiff end setting of vibrating diaphragm 1131 is in the one side that is close to the inlet port, and the free end setting of vibrating diaphragm 1131 is in the one side that is close to the venthole, and this kind of mode of setting is used for guaranteeing that when the air current blows in from the inlet port, the air current blows in from the direction of the stiff end of every vibrating diaphragm to can realize better friction effect. Preferably, the diaphragm 1131 may be a diaphragm that is cut from the first polymer film 1130 in advance to form a preset shape, and accordingly, a vacant portion formed on the first polymer film 1130 after the diaphragm 1131 is cut can better enter and exit an air flow, so as to improve a friction effect; moreover, the free end of the diaphragm 1131 can reciprocate under the driving of the airflow, that is: the vibrating diaphragm 1131 is driven by the airflow acting force to generate vibration with corresponding frequency at the above-mentioned vacant position, and the vibration can make the free end of the vibrating diaphragm 1131 generate friction with the surface of the electrode 1120, thereby realizing the effect that the vibrating diaphragm 1131 generates friction under the driving of the airflow acting force. Furthermore, a person skilled in the art can design the structure of the diaphragm 1131 to be a structure capable of sufficiently utilizing inertia to realize continuous vibration according to practical experimental conditions, for example, the size of the free end of the diaphragm 1131 is designed to be slightly larger than the size of the fixed end of the diaphragm 1131, so that after the free end of the diaphragm 1131 is vibrated by the action of the airflow, the vibrating diaphragm 1131 in vibration continuously vibrates under the action of inertia, and the inertia and the airflow act on the diaphragm 1131 at the same time, so as to further increase the vibration effect of the diaphragm 1131, thereby further improving the friction effect. Of course, in other embodiments of the present invention, a plurality of diaphragms with preset shapes may be fixedly disposed on the first polymer film 1130, where the specific disposition of the diaphragm 1131 is not limited in the present invention as long as the contact friction effect can be achieved. The shape of the diaphragm 1131 may be rectangular, triangular, polygonal, or fan-shaped, and the length of the diaphragm 1131 may be adaptively set by a person skilled in the art according to the shape of the diaphragm, so as to avoid the situation that the diaphragm is unstable in vibration or cannot start vibration due to too long or too short length of the diaphragm. When the number of the diaphragms 1131 is plural, the diaphragms are arranged on the first polymer film 1130 in an array manner, and in order to improve the friction effect, when the first polymer film 1130 is in a hollow prism shape, one or more diaphragms may be respectively arranged on each side surface of the hollow prism-shaped first polymer film 1130. As shown in fig. 13, the first polymer film shown in fig. 13 is a hollow triangular prism, the diaphragm 1031 is a plurality of rectangular diaphragms respectively disposed on each side surface of the first polymer film, and one side of each rectangular diaphragm is connected to the first polymer film 1130 to form a fixed end of the rectangular diaphragm; the remaining three sides are separated to form the free end of the rectangular diaphragm. Moreover, as can be seen from fig. 13, the number of the diaphragms may be multiple, and the diaphragms in fig. 13 are arranged on the first polymer film 1130 in an array manner.

Specifically, in order to facilitate the rubbing, the first polymer film 1130 is spaced apart from the electrode 1120 by a predetermined distance, and the predetermined distance is used to provide a sufficient vibration space for the diaphragm on the first polymer film 1130. In specific implementation, the preset distance can be controlled to be between 0.01 and 2.0 mm. Specifically, the preset distance may be implemented in the following two ways: in the first implementation manner, two ends of the electrode 1120 are respectively fixed to the inner walls of the first end surface 1111 and the second end surface 1112 of the casing 1110, and two ends of the first polymer film 1130 are also respectively fixed to the inner walls of the first end surface 1111 and the second end surface 1112 of the casing 1110, so that the casing 1110 and the first polymer film 1130 are kept separated after being fixed, and the preset distance exists between the electrode 1120 and the first polymer film 1130 after being fixed. In the second implementation manner, in order to prevent the middle portion of the first polymer film 1130 and the electrode 1120 from contacting each other and being unable to be effectively separated, there are further provided between the electrode 1120 and the first polymer film 1130: and the at least one supporting structure 1140, wherein the supporting structure 1140 is used for forming a gap between the electrode 1120 and the first polymer film 1130, so that the free end of the diaphragm on the first polymer film 1130 is in contact with and separated from the electrode 1120. In a specific implementation, when the supporting structure 1140 is disposed, the supporting structure 1140 may be integrally disposed on the side surface of the electrode 1120 opposite to the first polymer film 1130 or disposed on the side surface of the first polymer film 1130 opposite to the electrode 1120, so as to prevent one surface of the first polymer film 1130 from continuously contacting the electrode 1120 due to the falling-off of the supporting structure 1140, and further, a more ideal rubbing effect cannot be achieved; alternatively, the support structure 1140 may be provided as a removable structure to facilitate removal and replacement of the support structure 1140 by a user. Wherein, the thickness of the supporting structure 1140 is preferably between 0.01-2.0mm, and those skilled in the art can also arrange a plurality of groups of supporting structures 1140 with different thicknesses, so that users can select the supporting structures 1140 with different thicknesses to disassemble and replace according to different practical situations. The number of the supporting structures 1140 may be one or more. When the number of the support structures 1140 is plural, every two adjacent support structures 1140 are spaced apart from each other by a predetermined distance. Wherein, the predetermined distance can ensure that each diaphragm is respectively disposed between every two adjacent supporting structures 1140. Namely: a corresponding diaphragm is arranged at a part of the first polymer film 1130 not in contact with the support structure 1140, and the diaphragm can vibrate under the driving action of the air flow, and the vibration process of the diaphragm is not affected by the support structure 1140. In a word, effective separation between the first polymer film and the electrode can be ensured through the supporting structure 1140, and the situation that two friction interfaces cannot be effectively separated after contacting is prevented, so that the friction effect is improved. The two implementations described above can be used either alone or in combination.

After the structure of the airflow sensor is described, the operation principle of the airflow sensor is described as follows:

when no gas flows in, no friction is generated between the electrode 1120 and the first polymer film 1130, and therefore no induced charge is generated; the electrode 1120 and the first polymer film 1130 are usually made of materials with opposite polarities (for example, the electrode is usually made of a material with volatile electrons, and the first polymer film 1130 is usually made of a material with readily available electrons), and at this time, the predetermined distance between the electrode 1120 and the first polymer film 1130 is small, so that the diaphragm on the first polymer film 1130 is adsorbed on the surface of the electrode 1120. When the gas to be measured flows in from the gas inlet hole on the first end surface of the housing 1110, the vortex generated by the gas to be measured vibrates the free end of the diaphragm, and the vibrating free end and the surface of the electrode 1120 generate contact separation with corresponding frequency, that is, the diaphragm on the first polymer film 1130 and the surface of the electrode 1120 generate friction, and then the diaphragm and the electrode 1120 generate corresponding induced charges. In specific implementation, as shown in fig. 14, fig. 14 is a schematic diagram of friction between a diaphragm and an electrode on a first polymer film. The electrode 1120 in fig. 14 is disposed inside the first polymer film 1130, and a certain preset distance exists between the electrode 1120 and the first polymer film 1130, when the airflow to be measured flows in, the diaphragm 1131 vibrates up and down under the driving of the airflow to be measured, and quickly contacts and separates with the electrode 1120, that is, the diaphragm rubs against the surface of the electrode to generate induced charges, and the induced charges flow out from the electrode 1120 to output a corresponding electrical signal. The electrode 1120 and a grounding point in an external circuit jointly form a current loop, so that the electric signal output is realized in a single electrode mode.

In addition, the airflow sensor with the structure mainly generates electricity by means of contact friction between the first polymer film and the electrode, and in the concrete implementation, a person skilled in the art can make various changes and deformations to the internal structure of the airflow sensor:

for example, the electrode 1120 can be further implemented by two schemes as follows:

the first scheme is as follows: the electrode 1120 includes only a single metal electrode layer, and accordingly, the free end of each diaphragm on the first polymer film 1130 can rub against the metal electrode layer in the electrode 1120 under the driving of the airflow. Because metal and high molecular polymer rub against each other, the metal is more likely to lose electrons, so that the surface of the electrode 1120 is set as a metal electrode layer, and the metal electrode and the high molecular polymer (i.e., the first polymer film 1130) rub against each other, so that generation of induced charges can be effectively enhanced, and the sensitivity of an output electric signal can be increased. Here, the polarity of the electrode 1120 is opposite to that of the first polymer film 1130, the electrode 1120 is very easy to lose electrons, and the first polymer film 1130 is easy to obtain electrons. Namely: the metal electrode layer is easy to lose electrons, and the first polymer film is easy to obtain electrons.

Scheme II: unlike the single-layer structure in the first embodiment, the electrode in the second embodiment is a composite structure, and specifically, the electrode 1120 further includes: the metal electrode layer and the second polymer film disposed outside the metal electrode layer, the free end of each diaphragm can rub against the second polymer film in the electrode 1120 under the driving of the airflow. Specifically, in this embodiment, a second polymer film is further disposed on the metal electrode layer of the electrode 1120, for example, a second polymer film may be further coated on the metal electrode layer of the electrode 1120, so that the free end of each diaphragm on the first polymer film 1130 and the second polymer film in the electrode 1120 rub against each other under the driving of the airflow to generate induced charges, that is, the induced charges are generated by the friction between the polymer (the first polymer film) and the polymer (the second polymer film), and an electrical signal is output through the metal electrode layer inside the second polymer film, thereby achieving a similar friction effect to the above embodiment.

Specifically, in the first or second aspect, the material of the metal electrode layer may be metal or alloy, where the metal may be gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten, or vanadium; the alloy may be an aluminum alloy, a titanium alloy, a magnesium alloy, a beryllium alloy, a copper alloy, a zinc alloy, a manganese alloy, a nickel alloy, a lead alloy, a tin alloy, a cadmium alloy, a bismuth alloy, an indium alloy, a gallium alloy, a tungsten alloy, a molybdenum alloy, a niobium alloy, or a tantalum alloy. In addition, the material of the metal electrode layer may be further selected from non-metal conductive materials such as indium tin oxide, graphene, silver nanowire film, and the like. The material of the first polymer film and the second polymer film is selected from polyimide film, aniline formaldehyde resin film, polyformaldehyde film, ethyl cellulose film, polyamide film, melamine formaldehyde film, polyethylene glycol succinate film, cellulose acetate film, polyethylene adipate film, polydiallyl phthalate film, fiber (regenerated) sponge film, polyurethane elastomer film, styrene-propylene copolymer film, styrene-butadiene copolymer film, rayon film, polymethyl film, methacrylate film, polyvinyl alcohol film, polyester film, polyisobutylene film, polyurethane flexible sponge film, polyethylene terephthalate film, polyvinyl butyral film, formaldehyde phenol film, chloroprene rubber film, butadiene-propylene copolymer film, polyethylene terephthalate film, polyvinyl butyral film, formaldehyde-phenol film, chloroprene rubber film, butadiene-propylene copolymer film, polyethylene terephthalate film, polyethylene, One of a natural rubber film, a polyacrylonitrile film, an acrylonitrile-vinyl chloride film and a polyethylene propylene glycol carbonate film. In principle, the first polymer film and the second polymer film may be made of the same material or different materials. However, if the two polymer films are made of the same material, the amount of triboelectric charge is small. Therefore, the first polymer film and the second polymer film are preferably made of different materials.

Accordingly, with respect to the above-mentioned arrangement of the support structure 1140, the corresponding solution is as follows: if the electrode 1120 adopts the structure in the first scheme, the following steps are performed: the outer layer of the electrode 1120 only includes a single metal electrode layer, and the above-mentioned supporting structure 1140 is correspondingly disposed outside the metal electrode layer of the electrode 1120; if the electrode 1120 adopts the structure of scheme two, that is: the second polymer film is further disposed on the metal electrode layer of the outer layer of the electrode 1120, and the aforementioned supporting structure 1140 is correspondingly disposed on the outer side of the second polymer film in the electrode 1120.

Further, in the above two schemes, in order to increase the friction effect, the surface of the electrode 1120 may be further provided so that the surface of the electrode 1120 is formed in a planar shape or a rough point shape. The planar electrode is an electrode with a smooth and planar surface, and because the electrostatic adsorption force of induced charges generated by the friction of the planar electrode is small, that is, the adsorption force of the generated electrostatic adsorption diaphragm is small, under the action of air flow, when the diaphragm on the first polymer film 1130 is rubbed with the electrode 1120 with a planar surface, the problem of unstable vibration of the diaphragm caused by the large electrostatic force generated by friction can be overcome; the rough point-like electrode is an electrode with a certain roughness on the surface, and because the surface with larger roughness can generate more induced charges during friction, when the vibrating diaphragm on the first polymer film 1130 and the electrode 1120 with the rough point-like surface are rubbed, the friction resistance of the surface of the rough point-like electrode can be increased, so that the induced charges generated by friction are increased, the output electric signal is increased, and the sensitivity of electric signal output is improved. The rough point-like electrode may be formed by polishing the surface of the electrode 1120 or by providing a concave-convex structure, wherein the concave-convex structure may be a concave-convex structure with a regular shape such as a semicircular shape, a stripe shape, a cubic shape, a quadrangular pyramid shape, or a cylindrical shape, or other irregular shapes.

In addition, each of the two schemes can be further divided into two implementation manners: in a first implementation, only the electrode 1120 may serve as a signal output; in a second implementation, the electrode 1120 and another output electrode together form a signal output terminal, for example, the housing 1110 may be a metal housing, so that the housing 1110 serves as another signal output terminal of the airflow sensor. That is, when the case 1110 is a metal case, the case 1110 may be provided as another output electrode. Specifically, the casing 1110 constitutes an output electrode in the airflow sensor, and when the distance between the casing 1110 and the first polymer film 1130 is set, the distance between the casing 1110 and the first polymer film 1130 is set within a range of a preset distance, for example, the distance between the casing 1110 and the first polymer film 1130 may be set to be 0.01-2.0mm, so that when the diaphragm on the first polymer film 1130 is driven by the airflow to vibrate up and down, the diaphragm not only rubs against the electrode surface of the electrode 1120, but also further rubs against the inner surface of the casing 1110, so as to generate corresponding induced charges on the inner surface of the casing 1110, and then the casing 1110 at this time may serve as another signal output terminal except the electrode 1120. Here, the material of the case 1110 may be metal, or may be a material having conductivity other than metal; alternatively, the casing 1110 may be further configured as a two-layer structure, that is: a layer of structure inside the casing 1110 may be made of metal, and then a layer of polymer film material may be provided in addition to the metal. Here, the material and structure of the casing 1110 are not limited as long as the casing 1110 can be used as another signal output terminal.

In the first implementation manner of the first and second schemes, only one signal output terminal is provided, that is, the electrode 1120 serves as the only signal output terminal; in a second implementation manner of the first and second embodiments, two signal output terminals, namely, the electrode 1120 and the housing 1110, are provided. When only one signal output terminal is provided, i.e. the electrode 1120 is selected as the only signal output terminal, the electrode 1120 and the grounding point in the external circuit form a current loop together; when two signal output terminals are provided, that is, when the electrode 1120 and the case 1110 are selected as the signal output terminals, a current loop is formed due to a potential difference between the two electrode layers of the electrode 1120 and the case 1110.

In addition, on the basis of any implementation manner of the second scheme, a person skilled in the art can further add an intermediate thin film layer or an intermediate electrode layer between the second polymer film and the first polymer film, so that the number of friction interfaces is further increased, and the friction effect is improved. In short, the specific number and implementation manner of the friction interfaces are not limited, and those skilled in the art can flexibly set the form of the friction interfaces as long as the friction power generation effect can be achieved.

Finally, a conversion relation between the electric signal output by the airflow sensor and the flow speed of the airflow inside the sensor is introduced:

after the electric signal output by the signal output end is obtained, the flow speed and the flow of the gas to be detected are obtained by processing corresponding numerical values contained in the electric signal. The electrical signal includes electrical signal parameters related to a voltage value, a frequency value, and the like. The inventor finds that the larger the gas flow velocity of the detected gas is, the higher the vibration frequency of the diaphragm is, and the larger the output voltage value and frequency are. Furthermore, the inventor further finds out from the measured values that the gas flow velocity is in a direct relation with the voltage value V and the frequency f, that is, the gas flow velocity (i.e., the gas flow velocity) is in a linear relation with the voltage value V and the gas flow velocity is in a linear relation with the frequency f, so that the gas flow velocity and the gas flow rate can be further calculated by obtaining the output voltage value, the output frequency value and the measurement time length, and the purpose of measuring the gas flow velocity and the gas flow rate is achieved. The specific experimental data of the above measurement are shown in table 1, table 1 is a table of parameters of the output electrical signals of the samples measured at different gas flow rates, and the parameters of the specific samples in item 1 and item 2 are different, so that the measured values at the same gas flow rate are different. As can be seen from table 1, the relationship between the flow rate of the gas flow and the voltage value V, and the flow rate of the gas flow and the frequency f in table 1 are approximately linear. The data in table 1 do not show a strict linear relationship due to the influence of the multiple parameters on the measurement result and due to the existence of experimental errors, but it is obvious that the voltage value and the frequency value are correspondingly increased as the airflow speed is increased in item 1 or item 2. Wherein, one optional parameter information of the measurement sample is as follows: the sample shell is metal casing, and the diameter is 6.0mm, and the interval (being electrode tripod step height) of vibrating diaphragm and electrode is 1.0mm, and vibrating diaphragm thickness is 4 ~ 6um, and the vibrating diaphragm is the rectangle, and length is 3.50mm, and the width is 1.0 mm.

TABLE 1

The airflow sensor provided by the embodiment is realized by utilizing the friction power generation principle, has the advantages of portability and portability, and has the characteristics of low manufacturing cost, simple manufacturing process, strong implementation performance and easiness in assembly. Meanwhile, in the working process of the airflow sensor provided by the invention, the vibrating diaphragm is further arranged on the first polymer film, the free end of the vibrating diaphragm is fully utilized to generate vibration under the action of airflow so as to generate a friction effect, the inertia effect generated in the vibrating process of the vibrating diaphragm is utilized to increase the friction effect in the friction power generation process, and more accurate and effective sensing signals are obtained by setting a friction power generation scheme with multiple modes, so that the signal sensitivity is improved, and the working accuracy of the airflow sensor is also improved.

Therefore, the method and the device can acquire various smoking information of the user in the smoking process according to the airflow generated by the user during smoking, and effectively improve the sensitivity and accuracy of smoking information monitoring; meanwhile, the use mode of the invention is convenient and simple, and the energy consumed by the user in the monitoring process can be effectively reduced; in addition, the invention has the advantages of simple structure and manufacturing process, low cost and suitability for large-scale industrial production.

It should be understood that when the airflow generated by the smoking of the user acts on the airflow sensor in the first to fourth examples, the electrical signal output by the electrode in the first to fourth examples is the airflow pressure electrical signal mentioned in the present invention.

The various modules and circuits mentioned in the present invention are all circuits implemented by hardware, and although some of the modules and circuits integrate software, the present invention protects hardware circuits integrating the corresponding functions of the software, not just the software itself.

It will be appreciated by those skilled in the art that the arrangement of devices shown in the figures or embodiments is merely schematic and representative of a logical arrangement. Where modules shown as separate components may or may not be physically separate, components shown as modules may or may not be physical modules.

Finally, it is noted that: the above-mentioned embodiments are only examples of the present invention, and it is a matter of course that those skilled in the art can make modifications and variations to the present invention, and it is considered that the present invention is protected by the modifications and variations if they are within the scope of the claims of the present invention and their equivalents.

Claims

1. A smoking amount monitoring device, comprising: the cigarette holder comprises a cigarette holder body, an airflow sensor and a signal analysis and calculation module; wherein,

the mouthpiece body for providing smoke to a user along an airflow channel inside the mouthpiece body;

the airflow sensor is arranged in an airflow channel in the cigarette holder body and used for converting pressure of airflow generated by smoking of a user on the airflow sensor into an airflow pressure electric signal and outputting the airflow pressure electric signal;

and the signal analysis and calculation module is electrically connected with the airflow sensor and used for determining the smoking information of the user according to the airflow pressure electric signal.

2. The smoking amount monitoring device according to claim 1, wherein the signal analysis calculation module includes: the system comprises a signal preprocessing module and a central control module;

the signal preprocessing module is electrically connected with the airflow sensor and is used for preprocessing the airflow pressure electric signal output by the airflow sensor;

the central control module is electrically connected with the signal preprocessing module and used for analyzing and calculating the smoking information of the user according to the electric signal of the airflow pressure preprocessed by the signal preprocessing module.

3. The smoking amount monitoring device according to claim 2, wherein the signal analysis calculation module further includes: a wireless transceiver module and/or an interactive function module;

the wireless transceiver module is electrically connected with the central control module and is used for transmitting the smoking information of the user output by the central control module to preset receiving equipment in a wireless communication mode;

the interactive function module is electrically connected with the central control module and is used for sending a user interactive instruction to the central control module;

wherein the user interaction instructions comprise at least one of: the smoking information setting method comprises an opening instruction, a closing instruction, a user information initialization instruction and a smoking information setting instruction of a user.

4. The smoking amount monitoring device according to claim 2 or 3, wherein the signal analysis calculation module further includes: a display module and/or an alarm module;

the display module is electrically connected with the central control module and is used for displaying the smoking information of the user, which is obtained by the central control module;

the central control module is further configured to: sending the alarm trigger signal when the smoking information of the user accords with a preset alarm rule;

the alarm module is electrically connected with the central control module and used for carrying out alarm prompt according to the alarm trigger signal sent by the central control module.

5. The smoking amount monitoring device according to claim 1, wherein the airflow sensor includes: a triboelectric airflow sensor and/or a piezo-electric airflow sensor.

6. The smoking amount monitoring device according to claim 5, wherein the airflow sensor includes: a shell, an electrode and a first polymer film arranged in the shell, wherein,

the shell is provided with a first end face and a second end face which are oppositely arranged, the first end face is provided with at least one air inlet hole for air flow to flow in, and the second end face is provided with at least one air outlet hole for air flow to flow out; a gas channel is formed between the electrode and the first polymer film;

the electrode is arranged along the central axis direction of the shell, the first polymer film is a cylindrical film sleeved outside the electrode, the shape of the first polymer film is matched with that of the electrode, and the first polymer film is further provided with at least one vibrating diaphragm; the airflow enters the gas channel through the air inlet hole to drive the vibrating diaphragm to vibrate;

each diaphragm is provided with a fixed end connected with the first polymer film into a whole and a free end capable of rubbing with the electrode under the drive of the airflow; the electrode is a signal output end of the airflow sensor.

7. The smoking amount monitoring device according to claim 6, wherein the electrode further comprises: the free end of each vibrating diaphragm can rub with the second polymer film in the electrode under the driving of the airflow.

8. The smoking amount monitoring device according to claim 6, wherein the diaphragm is a diaphragm pre-cut from the first polymer film, or the diaphragm is a diaphragm fixedly disposed on the first polymer film.

9. The smoking amount monitoring device of claim 6, wherein the shape of the diaphragm comprises at least one of: rectangles, triangles, polygons, and sectors;

when the number of the vibrating membranes is multiple, the vibrating membranes are arranged in an array mode.

10. The smoking amount monitoring device according to claim 1, further comprising: and the smoke generating component is connected with the cigarette holder body and is used for generating smoke for a user to suck.

11. The smoking amount monitoring device according to claim 10, wherein the mouthpiece body is further provided with a receiving cavity for insertion of an aerosol generating component capable of generating an aerosol.

12. A smoking amount monitoring system, comprising: a smoking amount monitoring device according to any one of claims 1 to 11 and a terminal device; wherein,

13. The smoking amount monitoring system according to claim 12, further comprising: a big database service platform; wherein,

the terminal device is further configured to: sending the received smoking information of the user to the big database service platform;

the big database service platform is connected with the terminal equipment in a wired communication or wireless communication mode and used for determining user analysis information according to the received smoking information of the user and preset smoking monitoring information and sending the user analysis information to the terminal equipment.

14. A smoking amount monitoring system, comprising: a smoking volume monitoring device according to any one of claims 1 to 11 and a big database service platform; wherein,

the big database service platform is connected with the smoking amount monitoring device in a wired communication or wireless communication mode and used for receiving and storing the smoking information of the user obtained by analysis and calculation of the smoking amount monitoring device, analyzing and comparing the received smoking information of the user with the smoking information of the user in the big database service platform to obtain user analysis information, and sending the user analysis information to the smoking amount monitoring device.