An aerosol generating device

Abstract

This application proposes an aerosol generation device, which includes a sound detection module, a voice prompt module, a power supply circuit, a power supply module, and a control module. The sound detection module is connected to the control module, samples ambient sound, and sends the sampling results to the control module. The power supply module is connected to the power supply circuit, the voice prompt module, and the sound detection module. The control module is connected to the power supply module and, in response to ambient sound reaching a preset sound pressure level, controls the power supply module to provide power to the voice prompt module. The voice prompt module is also connected to the sound detection module. After receiving power from the power supply module, it responds to a retrieval command in the ambient sound by issuing a preset reply voice, realizing a retrieval function based on voice response. The device triggers power to the voice prompt module based on sound pressure; on the one hand, sound pressure triggering reduces false triggering of voice responses; on the other hand, the voice prompt module is powered off when idle, reducing the device's power consumption and extending its battery life.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0002] With industry development and technological innovation, miniaturization has become a new trend in the aerosol generation device manufacturing industry.

[0003] This brings with it many problems, one of the most significant being the increasing ease with which aerosol generating devices are lost. Users often have urgent needs for the product, and this inability to obtain it promptly leads to a diminished user experience and hinders industry development. To address this issue, existing aerosol generating devices often integrate voice recognition and response systems to recognize and respond to user search commands, thus enabling the device's retrieval.

[0004] However, such solutions often require real-time identification of ambient sound, which leads to high power consumption and shortens the battery life of the aerosol generating device. Utility Model Content

[0005] This invention provides an aerosol generating device to reduce power consumption and extend battery life.

[0006] This utility model provides an aerosol generating device, comprising: a sound detection module, a voice prompt module, a power supply module, a power circuit, and a control module;

[0007] The sound detection module is connected to the control module, and the sound detection module is configured to sample ambient sound and send the sampling results to the control module.

[0008] The power supply module is connected to the power circuit, the voice prompt module, and the sound detection module respectively;

[0009] The control module is connected to the power supply module. The control module is configured to output a trigger signal to the power supply module in response to the ambient sound reaching a preset sound pressure level, thereby enabling the power supply module to provide power to the voice prompt module.

[0010] The voice prompt module is also connected to the sound detection module. The voice prompt module is configured to issue a preset response voice in response to a retrieval command in the ambient sound after receiving power from the power supply module.

[0011] Optionally, the voice prompt module includes a voice recognition chip and a sound generation unit;

[0012] The speech recognition chip is connected to the sound detection module and is configured to recognize the retrieval command from the ambient sound.

[0013] The voice unit is configured to emit a response voice in response to the retrieval command.

[0014] Optionally, the sound-generating unit includes a power amplifier circuit and a loudspeaker.

[0015] Optionally, the aerosol generating device may also include a light indicator module;

[0016] The light indicator module is connected to the control module, and the control module is also connected to the voice recognition chip;

[0017] The control module is also configured to control the light indicator module to emit indicator light effects according to the retrieval command.

[0018] Optionally, the aerosol generating device may also include a light indicator module;

[0019] The light indicator module is connected to the voice recognition chip, and the light indicator module is configured to emit an indicator light in response to the retrieval command.

[0020] Optionally, the light indicator module includes a touch display screen and / or indicator lights.

[0021] Optionally, the power supply module includes: a first power supply circuit and a second power supply circuit;

[0022] The first power supply circuit is connected between the power supply circuit and the voice prompt module;

[0023] The second power supply circuit is connected between the power supply circuit and the sound detection module;

[0024] The control module is connected to the first power supply circuit and the second power supply circuit respectively. The control module is configured to continuously output a start-up voltage to the second power supply circuit and to output a wake-up voltage to the first power supply circuit in response to the ambient sound reaching a preset sound pressure level.

[0025] Optionally, the second power supply circuit includes a buck converter, which is connected to the control module.

[0026] Optionally, the first power supply circuit includes a low-dropout linear regulator, which is connected to the control module.

[0027] Optionally, the sound detection module includes a digital microphone based on microelectromechanical systems (MEMS) technology.

[0028] The aerosol generating device provided by this utility model includes a sound detection module, a voice prompt module, a power supply circuit, a power supply module, and a control module. The sound detection module is connected to the control module, samples ambient sound, and sends the sampling results to the control module. The power supply module is connected to the power supply circuit, the voice prompt module, and the sound detection module. The control module is connected to the power supply module and, in response to an ambient sound reaching a preset sound pressure level, outputs a trigger signal to the power supply module, thereby providing power to the voice prompt module. The voice prompt module is also connected to the sound detection module. After receiving power from the power supply module, it responds to a retrieval command in the ambient sound by issuing a preset reply voice, realizing a retrieval function based on voice response. The device triggers power to the voice prompt module based on sound pressure; on the one hand, sound pressure triggering reduces false triggering of voice responses; on the other hand, the voice prompt module is powered off when idle, reducing the device's power consumption and extending its battery life.

[0029] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the combined state of an aerosol generating device and its corresponding aerosol generating product according to an embodiment of the present invention.

[0032] Figure 2 A schematic diagram of another aerosol generating device provided in an embodiment of this utility model;

[0033] Figure 3 A schematic diagram illustrating the composition of yet another aerosol generating device provided in an embodiment of this utility model;

[0034] Figure 4 A schematic diagram illustrating the composition of another aerosol generating device provided in an embodiment of this utility model;

[0035] Figure 5 This is a schematic diagram of the composition of another aerosol generating device provided in an embodiment of the present invention. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] To address the problems mentioned in the background art, this application proposes an aerosol generating device. To facilitate understanding of the technical solution, before introducing the core utility model points of this application, the basic functions of the aerosol generating device will be described first through embodiments.

[0039] Figure 1 This is a schematic diagram of the combined state of an aerosol generating device and its corresponding aerosol generating product according to an embodiment of the present invention, with reference to... Figure 1 The aerosol generating device 100 is a device that is connected, combined or interacts with the aerosol generating article 101 to form an operating state to generate an aerosol that can be inhaled by a user.

[0040] As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol-generating matrix that, when heated, releases volatile compounds that can form aerosols. Exemplarily, aerosol-generating article 101 may be a disposable cigarette or a reusable cartridge. Figure 1 (Only the case where the aerosol-generating product 101 is a cigarette is shown schematically).

[0041] The aerosol generating matrix may include a solid aerosol generating matrix. A solid aerosol generating matrix may include tobacco-containing materials containing volatile tobacco aroma compounds that are released from the aerosol generating matrix upon heating. A solid aerosol generating matrix may also include non-tobacco materials. A solid aerosol generating matrix may include both tobacco-containing and tobacco-free materials.

[0042] The aerosol generating matrix may include a liquid aerosol generating matrix. The liquid aerosol generating matrix may contain a liquid containing tobacco-containing substances with volatile tobacco aroma components, or it may contain a liquid containing non-tobacco substances. The liquid aerosol generating matrix may contain water, solvents, ethanol, plant extracts, fragrances, flavorings, or vitamin mixtures, etc. Fragrances may include areca nut extract, menthol, peppermint, spearmint oil, various fruit flavoring components, etc., but are not limited to these. Flavorings may contain ingredients that can provide users with various aromas or flavors. Vitamin mixtures may be mixtures containing at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited to these.

[0043] The aerosol generating apparatus 100 has a receiving cavity 102 inside, and at least a portion of the aerosol-generated article 101 can be joined in the receiving cavity 102. The aerosol generating apparatus 100 can be an electrically operated device. The aerosol generating apparatus 100 also includes a heating component 103, which can be an electric heater adapted to the aerosol generating apparatus 100. Therefore, the heating component 103 can generate heat when supplied with electricity or a magnetic field, and at least a portion of the heat is transferred to the aerosol-generated article 101 in the receiving cavity 102, thereby heating the aerosol-generated article 101.

[0044] The aerosol generating device 100 also includes a power supply circuit 106 and a circuit board 107. The power supply circuit 106 may include any suitable battery or cell. The circuit board 107 has one or more controllers. The circuit board 107 is electrically connected to the power supply circuit 106 and the heating assembly 103. The controllers can control the power supply circuit 106 to provide electricity or a magnetic field to the heating assembly 103. The circuit board 107 can also control other operations of the aerosol generating device 100, such as controlling the sensory cues in the aerosol generating device 100 to generate sensory signals such as sound, light, or vibration.

[0045] As one embodiment, the heating assembly 103 includes a heating element that primarily heats the aerosol generating matrix of the aerosol generating article 101 by releasing heat. The heating element can be in direct contact with the aerosol generating matrix, or it can be in indirect contact with the aerosol generating matrix through a heat-conducting element. It should be noted that the heating element can heat up by generating heat on its own and / or by absorbing heat from other components, thereby heating the aerosol generating article 101.

[0046] The heating element may comprise a heating material. This heating material may include a resistive material that generates Joule heating or infrared radiation when energized, or it may include a sensing material that generates heat in a changing magnetic field. In other words, at least a portion of the material used to prepare the heating element is capable of generating heat.

[0047] For the heating element, suitable resistive materials include, but are not limited to: semiconductors, such as doped ceramics, conductive ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic and metallic materials. Such composite materials may include doped or undoped ceramics. In some embodiments, doped ceramics may include doped silicon carbide, metallic materials may include titanium, zirconium, tantalum, and platinum group metals, and metallic alloys may include stainless steel, constantan, nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as nickel-, iron-, and cobalt-based superalloys, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys.

[0048] The sensing material may include metals or carbon. In one embodiment, the sensing material may include a ferromagnetic material, such as ferrite, ferromagnetic steel, or stainless steel. In one embodiment, the sensing material includes a nickel-iron alloy. In one embodiment, the sensing material includes 400 series stainless steel, which includes grade 410, 420, or 430 stainless steel.

[0049] Based on this Figure 2 This is a schematic diagram of another aerosol generating device provided in an embodiment of the present invention. The power supply circuit shown in the figure can also supply power to other modules or components besides the voice prompt module and the sound detection module. However, for the sake of simplicity, the relevant power supply connections are not shown in the accompanying drawings. Based on the foregoing embodiments, combined with... Figure 1 and Figure 2The aerosol generating device 100 also includes a sound detection module 201, a voice prompt module 202, a power supply module 203, and a control module 204. The sound detection module 201 is connected to the control module 204 and is configured to sample ambient sound and send the sampling results to the control module 204. The power supply module 203 is connected to the power supply circuit 106, the voice prompt module 202, and the sound detection module 201. The control module 204 is connected to the power supply module 203 and is configured to output a trigger signal to the power supply module 203 in response to an ambient sound reaching a preset sound pressure level, thereby providing power to the voice prompt module 202. The voice prompt module 202 is also connected to the sound detection module 201 and is configured to, after receiving power from the power supply module 203, issue a preset response voice in response to a retrieval command in the ambient sound.

[0050] Specifically, the sound detection module 201, voice prompt module 202, power supply module 203, and control module 204 can be integrated on a circuit board or located near the circuit board and connected to each other via the circuit board. The sound detection module 201 refers to the functional component in the aerosol generating device 100 capable of sampling ambient sound, detecting sound pressure, and processing signals. The sound detection module 201 can be located within the housing of the aerosol generating device 100 and communicate with the external environment through a sound-receiving hole on the housing to sample ambient sound and detect sound pressure. For example, the sound detection module 201 may include a sound-to-electric converter, a sound pressure detection sensor, and a signal processing and conversion circuit. The sound-to-electric converter, such as a microphone, can sample ambient sound and convert sound into a corresponding electrical signal. The sound pressure detection sensor integrated into the microphone can detect the sound pressure of the ambient sound and convert sound pressure into an electrical signal. For example, as the detected sound pressure increases, the sound pressure detection sensor can output a larger current signal.

[0051] The voice prompt module 202 refers to the component in the aerosol generating device 100 that can emit a preset response voice according to the ambient sound sampling signal. For example, the voice prompt module 202 may include a voice recognition chip, an operational amplifier, and a speaker. The voice prompt module 202 is connected to the sound detection module 201. After power-on, the voice prompt module 202 can acquire the ambient sound sampling signal from the sound detection module 201 and perform signal analysis. Once a retrieval command is identified from the ambient sound based on the sampling signal, the voice prompt module 202 emits a preset response voice. The retrieval command refers to the voice message issued by the user to retrieve the aerosol generating device 100; for example, the retrieval command may include the voice message "find". The preset response voice refers to the voice message preset in the voice prompt module 202 to respond to the retrieval command; for example, the preset response voice may include the voice message "here".

[0052] The power supply module 203 refers to the functional circuit or component that supplies power to the sound detection module 201 and the voice prompt module 202. It is connected to the power supply circuit 106, the sound detection module 201, and the voice prompt module 202, respectively. It converts the power supplied by the power supply circuit 106 to meet the power requirements of the sound detection module 201 and the voice prompt module 202. For example, the power supply module 203 may include a DC-DC converter and / or a low-dropout linear regulator. The power supply module 203 is also connected to the control module 204, and can activate the power supply to the voice prompt module 202 based on a trigger signal from the control module 204.

[0053] The control module 204 is the control module of the aerosol generating device 100. It is connected to the sound detection module 201. The control module 204 can acquire the sound pressure detection results of the sound detection module 201 and monitor the sound pressure detection results in real time. Once it is determined that the ambient sound sound pressure exceeds the preset sound pressure level, a trigger signal is sent to the power supply module 203 to wake up the power supply module 203 to supply power to the voice prompt module 202. For example, the control module 204 may include a microcontroller chip or an operational control circuit equipped with a comparator. It should be noted that all control methods involved in this utility model can be implemented by hardware circuits, and all parts involving software methods adopt solutions in the prior art. This application does not involve the protection of any software methods.

[0054] The aerosol generating device provided in this embodiment includes a sound detection module, a voice prompt module, a power supply circuit, a power supply module, and a control module. The sound detection module is connected to the control module and is configured to sample ambient sound and send the sampling results to the control module. The power supply module is connected to the power supply circuit, the voice prompt module, and the sound detection module. The control module is connected to the power supply module and is configured to output a trigger signal to the power supply module in response to an ambient sound reaching a preset sound pressure level, thereby providing power to the voice prompt module. The voice prompt module is also connected to the sound detection module and is configured to, after receiving power from the power supply module, issue a preset response voice in response to a retrieval command in the ambient sound, realizing a retrieval function based on voice response. The device triggers power to the voice prompt module based on sound pressure; on the one hand, sound pressure triggering reduces false triggering of voice responses; on the other hand, the voice prompt module is powered off when idle, reducing the device's power consumption and extending its battery life.

[0055] Optionally, Figure 3 This is a schematic diagram of another aerosol generating device provided in an embodiment of the present invention. Based on any of the foregoing embodiments, refer to... Figure 3The voice prompt module 202 includes a voice recognition chip 301 and a voice generation unit 302. The voice recognition chip 301 is connected to the sound detection module 201 and is configured to recognize a retrieval command from ambient sound. The voice generation unit 302 is configured to emit a response voice in response to the retrieval command. The power supply module 203 includes a first power supply circuit 305 and a second power supply circuit 306. The first power supply circuit 305 is connected between the power supply circuit 106 and the voice prompt module 202. The second power supply circuit 306 is connected between the power supply circuit 106 and the sound detection module 201. The control module 204 is connected to both the first power supply circuit 305 and the second power supply circuit 306. The control module is configured to continuously output a start-up voltage to the second power supply circuit 306 and output a wake-up voltage to the first power supply circuit 305 in response to ambient sound reaching a preset sound pressure level.

[0056] Specifically, the voice recognition chip 301 is a dedicated integrated circuit or module that integrates voice recognition function. It can identify specific instructions or text content from the sampling signal of the sound detection module 201 and control the working state of the sound-generating unit 302 according to the recognition result. For example, the voice recognition chip 301 may include a chip with the model number LD3320.

[0057] The sound-generating unit 302 refers to a circuit component capable of emitting a response voice according to preset signals and response conditions. The sound-generating unit 302 may include a power amplifier circuit 303 and a speaker 304. The power amplifier circuit 303, in response to the voice recognition chip 301 recognizing a retrieval command, amplifies a locally stored weak audio signal to a sufficiently high power to drive the speaker 304 to emit a response voice. The speaker 304 is a sound-generating device that converts the electrical signal output by the power amplifier circuit 303 into sound waves, which then drive the air through the mechanical vibration of a diaphragm to produce sound. For example, the power amplifier circuit 303 may include an ultra-low power Class D power amplifier chip, such as the AW8738 power amplifier chip, and the speaker 304 may include a dynamic speaker or a piezoelectric ceramic speaker.

[0058] The first power supply circuit 305 refers to the functional circuit in the power supply module 203 that supplies power to the voice prompt module 202 through power conversion. For example, the first power supply circuit 305 may include a low dropout linear regulator configured to be in a constant sleep state. The low dropout linear regulator is connected to the control module 204 and can end the sleep state and start supplying power to the voice prompt module 202 according to the trigger voltage output by the control module 204.

[0059] The second power supply circuit 306 refers to the functional circuit in the power supply module 203 that supplies power to the sound detection module 201 through power conversion. For example, the second power supply circuit 306 may include a buck converter (also called a BUCK converter) configured to operate in a constantly active state. The buck converter is connected to the control module 204 and can maintain its operating state according to the power supply control voltage of the control module 204, providing constant power to the sound detection module 201. In other embodiments, the control module 204 may also interrupt the start-up voltage supplied to the second power supply circuit 306 according to user input signals and / or operation content to disable the voice retrieval function. For example, the start-up voltage supplied to the second power supply circuit 306 may be interrupted during the user's breathing phase, so that the voice retrieval function only starts in the standby state when breathing stops.

[0060] For example, the sound detection module 201 includes a digital microphone (also known as a MEMS digital microphone) based on microelectromechanical systems (MEMS) technology, which has sound pressure detection functionality. The first power supply circuit 305 includes a low-dropout linear regulator. The second power supply circuit 306 includes a BUCK converter. The control module 204 includes a microcontroller chip, and the voice prompt module 202 includes a voice recognition chip 301, a power amplifier circuit 303, and a speaker. The power supply circuit 106 includes at least one set of lithium-ion batteries. The microcontroller chip has at least two sets of GPIO pins, one set of which is connected to the BUCK converter, and the other set is connected to the low-dropout linear regulator. In standby mode, the microcontroller chip continuously outputs a high level to the BUCK converter via one set of GPIO pins while outputting a low level via the other set of GPIO pins, to control the BUCK converter to remain operational while the low-dropout linear regulator remains in sleep mode. In this case, the BUCK converter steps down the higher voltage level power supplied by the lithium-ion battery to a low voltage of 1.2V to achieve stable power supply to the MEMS digital microphone. The power supply module 203 provides less than 10μA of power to the MEMS digital microphone, and the total power supply current of the device is only about 40μA, so the device is in a low power consumption state.

[0061] When powered on, the MEMS digital microphone samples ambient sound and detects sound pressure levels, generating a corresponding sound pressure voltage signal. In low-volume environments, the sound pressure voltage signal generated by the MEMS digital microphone has a relatively low voltage level. A comparator in the microcontroller chip compares the real-time acquired sound pressure voltage signal with a preset voltage, for example, 1.2V.

[0062] When the sound pressure level signal is lower than the preset voltage, the microcontroller continuously outputs a low level to the low-dropout linear regulator via its GPIO pin. Once the sound pressure level signal exceeds the preset voltage, the microcontroller switches to outputting a high level to the low-dropout linear regulator to wake it up. In this state, the low-dropout linear regulator performs voltage conversion and regulation on the power supplied by the lithium-ion battery, outputting a regulated 3.3V power supply to power the voice recognition chip 301, the power amplifier circuit 303, and the speaker. The power supply module 203, in addition to providing current to the MEMS digital microphone, also needs to provide mA-level current to the voice recognition chip 301, the power amplifier circuit 303, and the speaker. The total power supply current of the device is close to 15mA, at which point the device is in normal power consumption mode. However, if the voice recognition module fails to recognize the signal, the microcontroller will withdraw the high level from the low-dropout linear regulator after a few seconds, allowing the device to quickly return to low power consumption mode.

[0063] After power-on, the voice recognition chip 301 acquires the ambient sound sampling signal from the MEMS digital microphone and performs voice recognition on the ambient sound sampling signal. Once the ambient sound contains a retrieval command such as "find device," the voice recognition chip 301 outputs a preset audio signal to the power amplifier circuit 303. The power amplifier circuit 303 amplifies the audio signal and uses it to drive the speaker to emit response voices such as "here" and "I'm here." Users can locate the device based on the direction of the sound, thus achieving voice retrieval of the device.

[0064] In summary, in low-noise environments, the sound pressure level detected by the MEMS digital microphone decreases, and the device remains in standby mode with a static power consumption of approximately 40μA until it is retrieved. In occasionally noisy environments (such as when the user is carrying it while walking or talking nearby), the device intermittently enters the voice recognition phase, occasionally reaching a slightly higher operating power consumption of around 15mA. If recognition fails, the device returns to a low-power standby state after a few seconds, achieving automatic switching of the device's power supply status.

[0065] The aerosol generating device provided in this embodiment includes a voice prompt module comprising a voice recognition chip and a sound generation unit. The voice recognition chip is connected to a sound detection module and is configured to recognize a retrieval command from ambient sound. The sound generation unit is configured to emit a reply voice in response to the retrieval command. The power supply module includes a first power supply circuit and a second power supply circuit. The first power supply circuit is connected between the power supply circuit and the voice prompt module. The second power supply circuit is connected between the power supply circuit and the sound detection module. The control module is connected to both the first and second power supply circuits. The control module is configured to continuously output a startup voltage to the second power supply circuit and output a wake-up voltage to the first power supply circuit in response to ambient sound reaching a preset sound pressure level. This achieves automatic switching of power supply states, significantly reducing power consumption during standby and further improving the device's battery life.

[0066] Optionally, Figure 4 This is a schematic diagram of another aerosol generating device provided in an embodiment of the present invention. Based on any of the foregoing embodiments, refer to... Figure 4 The aerosol generating device 100 also includes a light indicator module 401. The light indicator module 401 is connected to the control module 204, which is also connected to the voice recognition chip 301. The control module 204 is further configured to control the light indicator module 401 to emit indicator light effects according to a retrieval command.

[0067] Specifically, the light indicator module 401 is a device that uses light to indicate the location to the user. It is connected to the control module 204 and can switch its operating state according to the control module 204. The control module 204 is also connected to the voice recognition chip 301. The control module 204 can control the light indicator module 401 to turn on and off based on the recognition result of the voice recognition chip 301. For example, the control module 204 can control the light indicator module 401 to emit an indicator light when the voice recognition chip 301 recognizes a retrieval command in the ambient sound. The light indicator module 401 may include a touch screen or an indicator light. The light indicator module 401 can emit an indicator light effect during voice retrieval, allowing the user to quickly locate the device even in low-light environments, improving the device retrieval efficiency.

[0068] Furthermore, in other embodiments, when the light indicator module 401 includes a touch screen, the touch screen, in addition to serving as a light indicator, can also enable human-computer interaction between the device and the user using display and touch functions. For example, it can switch and indicate heating modes, on / off status, and heating temperature, or indicate the device's remaining battery power. After successfully locating the aerosol generating device 100 using the voice retrieval function, the user can also operate the touch screen to turn off the voice prompts of the voice prompt module 202 and the light indicator on the touch screen.

[0069] Optionally, Figure 5 This is a schematic diagram of another aerosol generating device provided in an embodiment of the present invention, which, based on any of the foregoing embodiments, serves as... Figure 4 The parallel scheme of the embodiments is shown, with reference to Figure 5 The aerosol generating device 100 also includes a light indicator module 401. The light indicator module 401 is connected to the voice recognition chip 301 and is configured to emit an indicator light in response to a retrieval command.

[0070] Specifically, the light indicator module 401 is a device that uses light to indicate the user's location. It is connected to the voice recognition module and can switch its operating state based on the recognition result of the voice recognition module. For example, if a retrieval command is detected in the ambient sound, the voice recognition chip 301 can output a recognition success signal to the light indicator module 401. The light indicator module 401 then emits an indicator light based on the recognition success signal.

[0071] For example, the microcontroller chip has at least two sets of GPIO pins, one set of which is connected to the BUCK converter, and the other set is connected to the low-dropout linear regulator. In standby mode, the microcontroller chip continuously outputs a high level to the BUCK converter via one set of GPIO pins while outputting a low level via the other set of GPIO pins, thereby controlling the BUCK converter to remain operational and the low-dropout linear regulator to remain in sleep mode. In this case, the BUCK converter steps down the higher voltage level power supplied by the lithium-ion battery to a low voltage of 1.2V to achieve stable power supply to the MEMS digital microphone. The power supply module 203 provides a power supply current of less than 10μA to the MEMS digital microphone, and the total power supply current of the device is only about 40μA, indicating that the device is in a low-power state.

[0072] When powered on, the MEMS digital microphone samples ambient sound and detects sound pressure levels, generating a corresponding sound pressure voltage signal. In low-volume environments, the sound pressure voltage signal generated by the MEMS digital microphone has a relatively low voltage level. A comparator in the microcontroller chip compares the real-time acquired sound pressure voltage signal with a preset voltage, for example, 1.2V.

[0073] When the sound pressure level signal is lower than the preset voltage, the microcontroller continuously outputs a low level to the low-dropout linear regulator via its GPIO pin. Once the sound pressure level signal exceeds the preset voltage, the microcontroller switches to outputting a high level to the low-dropout linear regulator to wake it up. In this state, the low-dropout linear regulator performs voltage conversion and regulation on the power supplied by the lithium-ion battery, outputting a regulated 3.3V power supply to power the voice recognition chip 301, the power amplifier circuit 303, and the speaker. The power supply module 203, in addition to providing current to the MEMS digital microphone, also needs to provide mA-level current to the voice recognition chip 301, the power amplifier circuit 303, and the speaker. The total power supply current of the device is close to 15mA, at which point the device is in normal power consumption mode. However, if the voice recognition module fails to recognize the signal, the microcontroller will withdraw the high level from the low-dropout linear regulator after a few seconds, allowing the device to quickly return to low power consumption mode.

[0074] After power-on, the voice recognition chip 301 acquires ambient sound sampling signals from the MEMS digital microphone and performs voice recognition on these signals. Once a retrieval command such as "find device" is detected in the ambient sound, the voice recognition chip 301 outputs a preset audio signal to the power amplifier circuit 303. The power amplifier circuit 303 amplifies the audio signal and uses it to drive the speaker to emit response voices such as "here" and "I'm here." Simultaneously, the voice recognition chip 301 also sends a recognition success signal to the touchscreen display, which then lights up in response. Users can locate the device based on the direction of the sound and the position of the light, thus retrieval the device.

[0075] The aerosol generating device provided by this utility model includes a sound detection module, a voice prompt module, a power supply circuit, a power supply module, and a control module. The sound detection module is connected to the control module, samples ambient sound, and sends the sampling results to the control module. The power supply module is connected to the power supply circuit, the voice prompt module, and the sound detection module. The control module is connected to the power supply module and, in response to an ambient sound reaching a preset sound pressure level, outputs a trigger signal to the power supply module, thereby providing power to the voice prompt module. The voice prompt module is also connected to the sound detection module. After receiving power from the power supply module, it responds to a retrieval command in the ambient sound by issuing a preset reply voice, realizing a retrieval function based on voice response. The device triggers power to the voice prompt module based on sound pressure; on the one hand, sound pressure triggering reduces false triggering of voice responses; on the other hand, the voice prompt module is powered off when idle, reducing the device's power consumption and extending its battery life.

[0076] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An aerosol generating device, characterized in that, include: Sound detection module, voice prompt module, power supply module, power circuit and control module; The sound detection module is connected to the control module, and the sound detection module is configured to sample ambient sound and send the sampling results to the control module. The power supply module is connected to the power circuit, the voice prompt module, and the sound detection module respectively; The control module is connected to the power supply module. The control module is configured to output a trigger signal to the power supply module in response to the ambient sound reaching a preset sound pressure level, thereby enabling the power supply module to provide power to the voice prompt module. The voice prompt module is also connected to the sound detection module. The voice prompt module is configured to issue a preset response voice in response to a retrieval command in the ambient sound after receiving power from the power supply module.

2. The apparatus of claim 1, wherein, The voice prompt module includes a voice recognition chip and a sound generation unit; The speech recognition chip is connected to the sound detection module and is configured to recognize the retrieval command from the ambient sound. The voice unit is configured to emit a response voice in response to the retrieval command.

3. The apparatus of claim 2, wherein, The sound-generating unit includes a power amplifier circuit and a loudspeaker.

4. The apparatus of claim 2, wherein, Also includes: Light indicator module; The light indicator module is connected to the control module, and the control module is also connected to the voice recognition chip; The control module is also configured to control the light indicator module to emit indicator light effects according to the retrieval command.

5. The apparatus of claim 2, wherein, Also includes: Light indicator module; The light indicator module is connected to the voice recognition chip, and the light indicator module is configured to emit an indicator light in response to the retrieval command.

6. The apparatus of claim 4 or 5, wherein, The light indicator module includes a touch screen and / or indicator lights.

7. The apparatus of claim 1, wherein, The power supply module includes: a first power supply circuit and a second power supply circuit; The first power supply circuit is connected between the power supply circuit and the voice prompt module; The second power supply circuit is connected between the power supply circuit and the sound detection module; The control module is connected to the first power supply circuit and the second power supply circuit respectively. The control module is configured to continuously output a start-up voltage to the second power supply circuit and to output a wake-up voltage to the first power supply circuit in response to the ambient sound reaching a preset sound pressure level.

8. The apparatus of claim 7, wherein, The second power supply circuit includes a buck converter, which is connected to the control module.

9. The apparatus of claim 7, wherein, The first power supply circuit includes a low-dropout linear regulator, which is connected to the control module.

10. The apparatus of any one of claims 1-5 and 7-9, wherein, The sound detection module includes a digital microphone based on microelectromechanical systems (MEMS) technology.

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