Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural view of a mask according to an embodiment of the present disclosure.
First, a scene to which the mask in the present application may be applied will be exemplified.
The mask in the embodiment of the application is provided with the detachable self-cleaning filter membrane, so that the mask has an automatic cleaning function, can expand application scenes, for example, can be applied to complex environmental conditions or some emergent event occasions, such as battlefields, hospitals, fire scenes, emergent public health incident situations and the like (substances which influence the health of human bodies are usually generated under the scenes), therefore, the mask is provided with the functions of automatic purification and self-cleaning, so that the mask can be repeatedly used, the adverse effect of the substances under the environment on the health of the human body can be effectively avoided, in addition, the air of the environment may contain a large amount of toxic and harmful substances, the automatic purification function is configured for the mask, the harmful substances and germs can be effectively prevented from diffusing into the air, secondary pollution to the environment is avoided, and the germs are effectively prevented from continuously diffusing.
As shown in fig. 1, the mask 10 includes: a mask body 101; the mask comprises a self-cleaning filter membrane 103 detachably arranged on the mask body 101, and a voice communication device 104 arranged on the mask body 101, wherein the voice communication device 104 is used for carrying out voice communication with external electronic equipment.
In some embodiments of the present application, the mask further comprises a filter membrane bracket 102 connected to the mask body 101; the self-cleaning filter membrane 103 is detachably arranged in the filter membrane bracket 102.
In some embodiments of the present application, the self-cleaning filter membrane 103 comprises: the metal organic frame and the melt-blown fabric with the photocatalytic function are integrally arranged, or any other filter membrane with the self-cleaning function can be adopted as the self-cleaning filter membrane 103, which is not limited in this respect.
The self-cleaning filter membrane 103 integrates Metal-Organic Frameworks (MOFs) with a photocatalytic function with a melt-blown fabric, and can degrade toxic and harmful substances under natural light, thereby having the characteristic of reproducibility.
In some embodiments of the present application, the metal-organic framework with photocatalytic function has a nanoscale pore size, a porosity of a first target value, and a specific surface area of a second target value.
The first target value may be in a range of 0.95 to 0.99, the second target value may be in a range of 100 m/g to 10000 m/g, and the nano-scale pore size may be in a range of 1 nm to 5 nm, without limitation.
As shown in fig. 2, fig. 2 is a schematic diagram of a self-cleaning filter membrane in an embodiment of the present application, the self-cleaning filter membrane 103 integrates a metal organic framework with a photocatalytic function, which has a nano-scale pore size, a high porosity (the porosity is a first target value), and a large specific surface area (the specific surface area is a second target value), so as to achieve a renewable function, a photogenerated hole of the new material has a strong electron-withdrawing capability, and generates a strong oxidizing substance (such as active oxygen, superoxide anion, hydrogen peroxide, hydroxyl radical, and the like) under natural light irradiation, so as to effectively absorb and degrade volatile organic compounds (such as formaldehyde, toluene, and the like) and part of inorganic compounds in the air, and simultaneously destroy a bacterial cell membrane, solidify a viral protein carrier, and decompose toxins released by bacteria or fungi, thereby achieving killing and harmless treatment of multiple pathogenic microorganisms.
As shown in fig. 3a and 3b, fig. 3a and 3b are schematic structural views of a mask according to another embodiment of the present disclosure (fig. 3a may show an outer side of the mask, and fig. 3b may show an inner side of the mask), and the voice communicator 104 includes a communicator 1041, a bone conduction microphone 1042 and a bone conduction receiver 1043, wherein,
the bone conduction microphone 1042 is used for collecting a first voice signal of a user; the bone conduction receiver 1043 is used for outputting a second voice signal to the user; the communication component 1041 is configured to transmit the first voice signal collected by the bone conduction microphone 1042 to an external electronic device, and further configured to transmit a second voice signal of the electronic device to the bone conduction receiver 1043.
Optionally, in some embodiments, as shown in fig. 3b, the voice communication device 104 further comprises an electret microphone 1044, and the electret microphone 1044 is configured to collect the first voice signal.
In some embodiments of the present application, as shown in fig. 3a, the mask 10 further comprises:
the environmental parameter detecting components 105 are arranged on two sides of the mask 10 body, and the environmental parameter detecting components 105 are used for detecting temperature parameters, humidity parameters and/or content parameters of target substances of the environment where the mask 10 is located.
In some embodiments of the present application, as shown in fig. 3a, the mask 10 further comprises:
and the film battery 106 is arranged on the mask body, and the film battery 106 is used for supplying power to the voice communication device 104.
As shown in fig. 4, fig. 4 is a schematic structural diagram of an environmental parameter detecting element in the embodiment of the present application, in which an area of the environmental parameter detecting element 105 may be smaller than 40mm × 5mm, and includes two sensors CCS811 and HDC1086, for measuring 4 parameters, i.e. total volatile organic compounds, equivalent carbon dioxide, temperature, humidity, and the like, respectively, according to I2The C (Inter-Integrated Circuit) interface is connected to a bluetooth main control chip (the bluetooth main control chip may be referred to as a communication module 1041 in this embodiment, and the communication module 1041 may also be configured as a module that supports other communication modes, without limitation thereto), a small thin film lithium battery (the small thin film lithium battery may be referred to as a thin film battery 106 in this embodiment, and the thin film battery 106 may also be configured to supply power in any other possible mode, without limitation thereto) supplies power to the bluetooth main control chip and other modules in the voice communication device 104, and the environmental parameter detection module 105 transmits power to an external electronic device through bluetooth, such as a display and data analysis terminal, so as to implement two functions of environmental warning and protection effect warning.
That is to say, the environmental parameter detecting assemblies 105 may be disposed on two sides of the mask 10, and may effectively monitor parameters such as total volatile organic compounds, equivalent carbon dioxide, temperature, humidity, and the like, so as to realize real-time monitoring of temperature parameters, humidity parameters, and/or content parameters of the target substance in the environments inside and outside the mask 10, and in addition, while monitoring the above parameters of the external environment, the environmental parameter detecting assemblies may also transmit the parameters to an external electronic device (for example, a wearable electronic device with an analysis and calculation function) via the communication assembly 1041, so as to evaluate the protection effect of the mask 10.
The environmental parameter detection module 105 may be manufactured using a Printed Circuit Board (FPCB) having a pattern and made of a Flexible substrate, for example, and has an area smaller than 40 × 5mm, and is packaged with a silicone material, and the electronic component is placed on the front surface, the magnetoelectric composite interface is placed on the back surface, and the bluetooth (i.e., the communication module 1041 is configured as a bluetooth module) is used for wireless transmission and display.
In some embodiments of the present application, the communication assembly, the bone conduction microphone, and the bone conduction receiver are connected by a magnetic-electric composite method.
The communication module 1041 may support bluetooth communication, or may also support any other possible communication method, which is not limited to this.
The bone conduction microphone 1042 and the bone conduction receiver 1043 are smaller than 16 × 16mm in area and integrated with the mask 10, the bone conduction receiver 1043 (for example, a bone conduction matrix) can be placed on the front side of the tragus, the bone conduction receiver 1043 is tightly combined with the skin by adjusting the mask 10, the bone conduction microphone 1042 can collect a first voice signal of a user, namely, a bone vibration signal caused when the user speaks, and wireless transmission is performed by using the communication component 1041 (such as bluetooth communication).
In other embodiments, the electret microphone 1044 may be used to collect the first voice signal.
The voice signal of the user collected by the bone conduction microphone 1042 or the electret microphone 1044 may be referred to as a first voice signal, and then, the first voice signal may be subjected to corresponding audio processing and transmitted to the electronic device through the communication component 1041, and the voice signal received by the bone conduction receiver 1043 and transmitted by the electronic device may be referred to as a second voice signal.
In some embodiments of the present application, as shown in fig. 5, fig. 5 is a schematic structural diagram of a voice communication apparatus in an embodiment of the present application, and the voice communication apparatus 104 may include: the bone conduction microphone 1042 or the electret microphone 1044 is configured to collect a first voice signal of a user, perform audio processing on the first voice signal through the audio processor 1045 to obtain a first audio signal, and transmit the first audio signal to the electronic device through the communication component 1041.
As shown in fig. 6, fig. 6 is another schematic structural diagram of a voice communication apparatus in the embodiment of the present application, including: the bone conduction microphone comprises a bone conduction vibrator, an audio amplification chip, an electret or bone conduction microphone, a power amplification circuit, a Bluetooth main control chip and a power supply module.
The voice communication device 104 in the embodiment of the present application is designed based on the bone conduction principle, so that the sound waves are directly transmitted to the inner ear through the vibration of the skull, the jaw bone and the like, and therefore, the sound signals are directly interacted with the bones without passing through the air, the influence of the environment can be effectively avoided, and the interaction of the information is completed.
The voice communication device in this embodiment of the application may include a bone conduction vibrator (also referred to as a bone conduction receiver 1043) and an electret microphone (also referred to as an electret microphone 1044) or a bone conduction microphone (also referred to as a bone conduction microphone 1042), where the voice communication device may specifically be a flexible wireless circuit, and a high-pass bluetooth chip is used as a main control chip, the received signal drives the bone conduction vibrator after passing through an audio amplification chip, and a bone vibration signal collected by the microphone is directly sent to an external electronic device via the high-pass bluetooth chip.
In addition, the embodiment of the application can be provided with a button switch, for example, the button switch can be used for startup and shutdown control and pairing operation of a wireless circuit, an LED display screen is used for displaying the working state of the current circuit, and the small rechargeable thin-film lithium battery supplies power to the wireless circuit.
In some embodiments of the present application, the communication assembly 1041, the bone conduction microphone 1042 and the bone conduction receiver 1043 are connected by a magnetic-electric composite method.
In some embodiments, the communication assembly 1041, the bone conduction microphone 1042, and the bone conduction receiver 1043 described above may be coupled based on the magneto-electric composite assembly 107.
As shown in fig. 7, fig. 7 is a schematic view of a magnetoelectric composite component in an embodiment of the present application, and the magnetoelectric composite component 107 may include: the mask comprises an insulating layer 71, a flexible lead 72 and a magnetoelectric composite interface 73, wherein the insulating layer 71 can be formed in the form of silica gel, and the flexible lead 72 is packaged on the mask 10 by using the silica gel.
For example, the conductive magnetic particles can be integrated with the circuit interface or the flexible conductive line 72 by using silver paste and a silicon metal adhesive, and the thickness of the conductive magnetic particles is less than 2mm to form the magnetoelectric composite interface 73.
The bone conduction microphone 1042 or the electret microphone 1044 and the bone conduction receiver 1043 can be connected with the environmental parameter detection component 105 by a magnetoelectric composite mode respectively, and a self-cleaning filter membrane 103 is configured to be arranged in the filter membrane bracket 102, so that a detachable function is realized.
In some embodiments of the present application, each component in the above-mentioned mask can adopt the flexible wire 72 to carry out electrical connection, thereby make each component of mask 10 have the characteristics of miniaturization, flexibility, flexible wire 72 can conform to the mask 10 surface of various materials, thereby when not changing the original structure of mask 10, promoted the wholeness ability and the convenience of use of mask 10.
The flexible wires 72 may be integrated with the surface of the mask 10 made of different materials by means of ultraviolet bonding, silica gel encapsulation, adhesive bonding, and the like.
In the embodiment of the application, can use magnetoelectric composite assembly 107 to realize each subassembly and fix the reversible connection of flexible wire 72 on gauze mask 10, and magnetoelectric composite interface 73 among magnetoelectric composite assembly 107 can automatic alignment resume connection status under the circumstances of slight removal, in the in-process of user's in-service use, the accessible is adjusted ear area or magic and is pasted the position and paste in order to adapt to the face type, the bone conduction oscillator is placed in the tragus front side, and closely laminate with skin, sound signal can directly pass through bone transmission to the inner ear cochlea and obtain auditory information, bone conduction microphone 1042 and bone conduction receiver 1043 are placed inside gauze mask 10, make special type staff keep normal communication when wearing gauze mask 10.
The thin film battery 106 in the embodiment of the present application may be a small lithium battery, for example, the small lithium battery may be placed in the mask 10 in a blank space by a distributed design, reliable packaging is performed while heat dissipation is ensured, and the small lithium battery may be rechargeable and may be detached for reuse.
Environmental parameter detection subassembly 105 in this application embodiment can be and be long banding, places in gauze mask 10 both sides, monitors external environment and 10 inside cavitys of gauze mask to transmit data to outside electronic equipment through the bluetooth, with supplementary demonstration and the data analysis that carries out data, have environmental warning and protective effect warning dual function.
As shown in fig. 8, fig. 8 is a schematic view of an application scenario in the embodiment of the present application, the mask 10 integrates the self-cleaning filter membrane 103, the environmental parameter detection assembly 105, the bone conduction microphone 1042 and the bone conduction receiver 1043, has three functions of personal protection, environmental early warning and communication, and can be applied to complex environments to ensure the safety of special workers; the self-cleaning filter membrane 103 has the function of degrading total volatile organic compounds, bacteria and viruses, can be applied to scenes such as a chemical laboratory, a detection mechanism, a chemical warehouse, a detection mechanism, a hospital, epidemic prevention and the like, and enhances the protection effect on human bodies; the environmental parameter detection assembly 105 can effectively monitor the indoor decoration environment, protect the health of workers and family members, and perform early warning on the field and special site environment; the bone conduction microphone 1042 and the bone conduction receiver 1043 effectively liberate two ears, are suitable for various noisy environments, and particularly can be applied to noisy environments such as fire fighting, security, traffic guidance, emergency treatment and the like under complex conditions.
Mask 10 in the embodiment of this application can collect personal protection, environmental early warning, communication function in an organic whole, subtracts heavy to each module, and the detachable design gives mask 10 bigger flexibility, can choose different modules for use according to the demand of difference, satisfies the long-time protection demand of special type staff in complex environment to progressively be applied to protection scenes such as hospital, family.
Therefore, the mask 10 in the embodiment of the present application integrates the three functional modules, namely the novel self-cleaning filter membrane 103, the voice communication device 104 and the environmental parameter detection assembly 105, into a whole; the used self-cleaning filter membrane 103 has the functions of efficiently intercepting total suspended particulate matters in the air, adsorbing and degrading various volatile organic compounds, realizing the killing of multi-pathogenic microorganisms, harmless treatment and the like; each subassembly of integrated all carries out miniaturization, flexible design, and the structure is lightly convenient for wear, can not increase user's burden.
In some embodiments of the present application, considering that the bone conduction microphone 1042 or the electret microphone 1044 has different signal strengths detected in the same environment, the electric signal generated by the electret microphone 1044 is more than tens of times of the signal strength generated by the bone conduction microphone 1042, and the bone conduction microphone 1042 transmits sound through the bone and may not be sensitive to external noise.
For example, the voice communication device 104 may be defaulted to operate in the electret microphone 1044 channel, when the control chip detects that the external noise is too large, the bone conduction microphone 1042 channel is switched by the switch, and when the sound transmission is finished, the default electret microphone 1044 channel is automatically switched back, so that the dual-channel microphone can meet the requirements of both normal use and audio acquisition in complex battlefield environments.
In the embodiment, the automatic purification and self-cleaning functions are configured for the mask, so that the mask can be repeatedly used, the adverse effect of substances in the environment on the human health can be effectively avoided, the harmful substances and germs can be effectively prevented from diffusing into the air, the secondary pollution to the environment is avoided, and the germs can be effectively prevented from continuously diffusing. In addition, the voice communication device is configured for the mask, so that the quality and the timeliness of voice communication can be effectively improved, and the voice communication effect is effectively improved.
Fig. 9 is a schematic flow chart of a control method based on the mask according to an embodiment of the present application.
As shown in fig. 9, the control method based on the mask includes:
s901: a first speech signal collected by a bone conduction microphone and/or an electret microphone is identified.
In this embodiment, the noise detection device may identify the first voice signal collected by the bone conduction microphone and/or the electret microphone, and then the noise detection device may analyze the first voice signal to obtain a noise value of the environmental noise.
S902: a noise value of the ambient noise is detected from the first speech signal.
For example, after the noise detection device identifies the first voice signal collected by the bone conduction microphone and/or the electret microphone, the noise detection device may perform signal processing on the first voice signal, separate the environmental noise signal from the first voice signal, analyze the environmental noise signal to obtain a signal intensity value of the environmental noise signal, and use the signal intensity value as a noise value of the environmental noise.
Of course, in other embodiments, any other possible manner, such as an engineering manner, a model processing manner, and the like, may be adopted to detect the noise value of the environmental noise according to the first speech signal, and this is not limited thereto.
S903: and controlling the bone conduction microphone to acquire the first voice signal if the noise value is greater than or equal to the noise threshold value.
After detecting the noise value of the environmental noise according to the first voice signal, the noise value may be compared with a noise threshold in real time, so as to perform corresponding switching control on the bone conduction microphone and the electret microphone in the mask according to a comparison result, for example, if the noise value is greater than or equal to the noise threshold, the bone conduction microphone is controlled to collect the first voice signal.
S904: and controlling the electret microphone to collect the first voice signal if the noise value is smaller than the noise threshold value.
In other embodiments, if the noise value is smaller than the noise threshold value, the electret microphone is controlled to acquire the first voice signal, so that the electret microphone and the bone conduction microphone are flexibly switched and controlled, and the mask can be flexibly adapted to the use requirements in various application scenes.
In the embodiment, the bone conduction headset with two microphones is designed, and the audio input channel can be controlled by using an analog switch, considering that the bone conduction microphone (which may be referred to as the bone conduction microphone) and the electret microphone (which may be referred to as the electret microphone) have different signal strengths detected in the same environment, the electric signal generated by the electret microphone is more than tens of times the signal strength generated by the bone conduction microphone, and the bone conduction microphone transmits sound through bones and may not be sensitive to external noise.
For example, the voice communication device can work in an electret microphone channel by default, when the control chip detects that external noise is too large, the bone conduction microphone channel is switched to through the change-over switch, sound transmission is finished, the default electret channel is automatically switched back, and the dual-channel microphone can meet the requirements of use under normal conditions and audio collection under complex battlefield environments.
In this embodiment, a noise value of the environmental noise is detected according to the first voice signal collected by the bone conduction microphone and/or the electret microphone, and if the noise value is greater than or equal to a noise threshold, the bone conduction microphone is controlled to collect the first voice signal, and if the noise value is less than the noise threshold, the electret microphone is controlled to collect the first voice signal, so that the quality of the collected voice signal can be effectively guaranteed, and the voice communication effect is effectively guaranteed.
Fig. 10 is a schematic flow chart of a control method based on the mask according to another embodiment of the present disclosure.
As shown in fig. 10, the control method based on the mask includes:
s101: and comparing the content parameters of the target substances on the two sides of the mask body, which are detected by the environmental parameter detection assembly, to obtain a comparison difference value.
That is to say, based on the above-mentioned description, set up and respectively be provided with the environmental parameter detection subassembly in gauze mask body both sides, then, the content parameter of target material in the environment is detected respectively to the environmental parameter detection subassembly based on both sides setting to the difference of comparing between the content parameter of the target material of analysis both sides, thereby based on the supplementary barrier propterty of assessing self-purification filter membrane of this difference of comparing.
S102: and evaluating the protective performance of the self-cleaning filter membrane according to the comparison difference.
For example, when the protective performance of the self-cleaning filter membrane is evaluated based on the comparison difference, the comparison difference may be matched with a preset reference table, which may include: the reference comparison difference value and the evaluation result corresponding to the reference comparison difference value can be quickly matched, and then the evaluation result corresponding to the reference comparison difference value is used as the result obtained by evaluation, which is not limited.
Of course, any other possible way to evaluate the protective performance of the self-cleaning filter according to the alignment difference can be used, such as mathematical way, modeling way, etc., without limitation.
In this embodiment, the content parameter of the target material through the gauze mask body both sides that detect environmental parameter determine module compares, obtains comparing the difference to according to the barrier propterty who compares the difference aassessment self-purification nature filter membrane, thereby can assess the barrier propterty of the self-purification nature filter membrane that sets up on the gauze mask effectively, can effectively enrich the function of gauze mask, promote the practicality of gauze mask.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.