Microphone lift control circuit for a smart speaker system

Abstract

The application discloses a microphone lifting control circuit of an intelligent sound box system, the sound box system comprising a sound box body, a screen connected to the sound box body, a microphone at least partially accommodated in the sound box body and a driving module for driving the microphone to rise. The control circuit comprises a main control module, a screen module, a detection module and a driving module. The screen module is used for generating a start signal when the screen displays. The detection module is electrically connected to the screen module and is used for starting detection after receiving the start signal and generating a control signal after detecting that a user performs a preset operation. The main control module is electrically connected to the detection module and is used for generating a rising signal after receiving the control signal. The driving module is electrically connected to the main control module and is used for controlling the driving module to drive the microphone to rise after receiving the rising signal. Under the control of the control circuit, the user takes the microphone by a non-contact mode instead of physical pressing, so that mechanical friction is avoided and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of speaker systems, and more particularly to a microphone lifting control circuit for an intelligent speaker system. Background Technology

[0002] With the increasing popularity of outdoor entertainment activities, the demand for portable karaoke devices has surged. Current mainstream solutions rely on smartphones (responsible for song selection, lyrics display, and audio processing) paired with portable speakers (for amplification), but this has significant drawbacks: the small screen size of smartphones makes operation (song selection, lyrics viewing) difficult in bright outdoor light or when multiple users are sharing the device; more importantly, the microphone usually needs to be carried separately, adding to the burden and making it prone to loss or damage during storage and transportation. To solve the storage problem, existing technologies (such as patent CN116389967B) have designed a receiving slot on the speaker, employing a dual-press mechanism: pressing first lowers and locks the microphone, then pressing again raises it to release it for use or storage. However, this operational logic is complex and difficult to master, and repeated mechanical pressing can easily cause wear and tear on the microphone housing, receiving slot latch, and elastic components, affecting the device's reliability and lifespan. Therefore, adopting a non-mechanical method for microphone retrieval has become the direction for improvement. Thus, it is necessary to provide a control circuit that can solve the aforementioned problems and support the improved solution for controlling the microphone's lifting and lowering. Utility Model Content

[0003] This application provides a microphone lifting control circuit for a smart speaker system, which aims to enable the microphone to be raised and lowered in a non-pressing manner so that the user can easily take it.

[0004] One embodiment of this application provides a microphone lifting control circuit for a smart speaker system. The speaker system includes a speaker body, a screen connected to the speaker body, a microphone at least partially housed within the speaker body, and a drive module for driving the microphone to rise. The control circuit includes a main control module, a screen module, a detection module, and a drive module. The screen module generates a start signal when the screen is displayed. The detection module is electrically connected to the screen module and is used to initiate detection upon receiving the start signal and generate a control signal upon detecting a preset operation performed by the user. The main control module is electrically connected to the detection module and is used to control the speaker system and generate a rise signal upon receiving the control signal. The drive module is electrically connected to the main control module and is used to control the drive module to drive the microphone to rise upon receiving the rise signal.

[0005] In one embodiment, the detection module includes a sound pickup submodule, an ADC submodule electrically connected to the sound pickup submodule, and a control submodule electrically connected to the ADC submodule; the sound pickup submodule is used to receive sound and convert the sound into an analog signal; the ADC submodule is used to convert the analog signal into a digital signal; the control submodule is used to generate a control signal when the digital signal is analyzed to include a preset signal; wherein the preset signal corresponds to a specific statement, and the preset operation is for the user to say the specific statement.

[0006] In one embodiment, the microphone pickup submodule includes a first microphone module and a second microphone module, which are respectively disposed on opposite sides of the speaker body.

[0007] In one embodiment, the speaker system includes a touch sensor; the detection module includes a touch detection submodule electrically connected to the touch sensor and a touch control submodule electrically connected to the touch detection submodule; the touch detection submodule is used to sense a touch trajectory on the touch sensor and generate a trajectory signal; the touch control submodule is used to analyze whether the trajectory signal contains a preset trajectory, and generate the control signal if it does; wherein, the preset trajectory corresponds to a specific touch trajectory, and the preset operation is for the user to draw the specific touch trajectory on the touch sensor.

[0008] In one embodiment, the touch sensor is disposed on the microphone, and the touch sensor is exposed to the user when the microphone is housed in the speaker body.

[0009] In one embodiment, the speaker body includes a top surface on which the microphone is disposed; the touch sensor is disposed on the top surface; the touch control submodule and the main control module operate on the same control chip.

[0010] In one embodiment, the drive module includes a motor and a support base driven by the motor for supporting the microphone; the control circuit further includes an presence detection module electrically connected to the main control module, used to detect whether the microphone is supported by the support base, and generate a presence signal after detecting that the microphone is supported by the support base, and generate a non-present signal after detecting that the microphone is not supported by the support base; the main control module is further used to receive a signal sent by the presence detection module after generating the rising signal, and generate a falling signal after sequentially receiving the non-present signal and the presence signal; the drive module is further used to control the motor to drive the support base to fall after receiving the falling signal.

[0011] In one embodiment, the drive module includes a motor and a support base driven by the motor for supporting the microphone; the control circuit further includes an presence detection module electrically connected to the main control module, used to detect whether the microphone is supported by the support base, and generate a presence signal after detecting that the microphone is supported by the support base, and generate a non-present signal after detecting that the microphone is not supported by the support base; the main control module is further used to receive a signal sent by the presence detection module after generating the rising signal, and generate a falling signal after receiving the non-present signal; the drive module is further used to control the motor to drive the support base to descend after reading the falling signal.

[0012] In one embodiment, the bit detection module includes a charging circuit for charging the microphone, wherein the non-in-position signal is an idle signal generated when the charging circuit is in an idle state, and the in-position signal is a non-idle signal generated when the charging circuit is in a non-idle state.

[0013] In one embodiment, the support base is provided with contacts electrically connected to the microphone for charging the microphone.

[0014] Under the control of the microphone lifting control circuit described above, users can easily obtain the microphone without pressing it. Because this non-contact method replaces the traditional physical pressing operation, it fundamentally avoids repeated mechanical friction between the microphone and the locking mechanism, extending the device's lifespan and improving the user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an intelligent speaker system provided in one embodiment of the present invention.

[0017] Figure 2 yes Figure 1 A schematic diagram of a microphone lifting control circuit module for one embodiment of a smart speaker system is shown, illustrating the modules and connections included in the control circuit, including a detection module, a drive module, and an in-situ detection module.

[0018] Figure 3 yes Figure 2The diagram shows the connection of the modules in one embodiment of the detection module, which includes a pickup submodule, an ADC submodule and a control submodule.

[0019] Figure 4 yes Figure 3 One implementation of the specific circuit diagram contained in the pickup submodule.

[0020] Figure 5 yes Figure 3 One implementation of the specific circuit diagram contained in the ADC submodule.

[0021] Figure 6 yes Figure 3 One implementation of the specific circuit diagram contained in the control submodule.

[0022] Figure 7 yes Figure 2 Another embodiment of the detection module is shown in the connection diagram of the modules, which includes a touch detection submodule and a touch control submodule.

[0023] Figure 8 yes Figure 7 One implementation of the specific circuit diagram contained in the touch detection submodule.

[0024] Figure 9 yes Figure 7 One implementation of the specific circuit diagram contained in the touch control submodule.

[0025] Figure 10 yes Figure 2 One implementation of the specific circuit diagram contained in the driver module.

[0026] Figure 11 yes Figure 2 One implementation of the specific circuit diagram contained in the in-situ detection module. Detailed Implementation

[0027] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please combine Figure 1 and Figure 2 This utility model provides a microphone lifting control circuit 102, applied to a smart speaker system 100. The smart speaker system 100 includes a speaker body 10, a screen 20 connected to the speaker body, a microphone 30 at least partially housed within the speaker body, and a drive module 40 for driving the microphone 30 to rise. In one embodiment, the smart speaker system can be as follows: Figure 1 As shown, the speaker body 10 includes a cabinet 12, multiple speakers 14 disposed within the cabinet 12, and a crossover (not shown). The cabinet 12 may be generally rectangular. The multiple speakers 14 may include a tweeter, a woofer, and a bass speaker. The crossover is used to divide the audio signal according to a designed frequency point, and then send it to the speaker unit most suitable for playing that frequency band. The main structural principle of the speaker is well known to those skilled in the art and will not be described in detail here. The microphone 30 is at least partially housed within the speaker body 10. For example, a receiving cavity 12 is formed on the top surface 11 of the speaker body 10, and the microphone 30 is at least partially housed in the receiving cavity 12. Since the smart speaker system 100 is equipped with a microphone 30, the user does not need to carry it separately, making it convenient for the user.

[0032] There are several ways to connect the screen 20 to the speaker body 10. For example, the screen 20 can be connected to the speaker body 10 in a flip-up manner. Specifically, the screen 20 is connected to one side of the speaker body 10 via a hinge 22. When the screen 20 is flipped up, the top surface 11 of the speaker body is exposed; when the screen 20 is closed, the top surface 11 is covered by the screen 20. Alternatively, the screen can be connected to the speaker body in a height-adjustable manner. Specifically, a recess (not shown) is provided on one side of the top surface 11 of the speaker body. The screen can be lowered to be accommodated in the recess, and raised to be exposed when in use. In this way, users can directly view the lyrics of karaoke songs and / or the corresponding video content on the screen 20 without needing a mobile phone. This not only makes it convenient to use, but the larger screen also provides a better experience.

[0033] The drive module 40 includes a motor and a transmission mechanism. The transmission mechanism may include a lead screw, a nut, and a guide device; the motor drives the lead screw to rotate via a coupling, the nut engages with the lead screw but is restricted from rotation by the guide device and moves linearly along the lead screw axis, the nut being directly or indirectly connected to the microphone 30, thereby causing the microphone 30 to rise. Alternatively, the transmission mechanism may include a motor, a pinion, a rack, and a fixed bracket; the motor drives the pinion to rotate, the pinion engaging with a vertically mounted rack, the gear rotating and pushing the rack to move linearly up and down along a guide rail, the rack being directly or indirectly connected to the microphone 30, achieving linear upward movement. It should be noted that the specific implementation of the transmission mechanism of the drive module 40 and the connection between the screen 20 and the speaker body are not limited to the methods mentioned above; their implementation methods are techniques known to those skilled in the art and will not be elaborated here. As for the microphone 30 being lowered after use and to be stored away, this can be achieved by the drive module driving it down to its original storage position, or by manual pressing.

[0034] The microphone lifting control circuit 102 includes a main control module 50, a screen module 60, a detection module 70, and a driver module 80. The main control module 50 controls the smart speaker system 100. Specifically, the main control module 100 responds to user operations to control the entire speaker system, such as responding to the user pressing the "next song" button to switch to the next song, or responding to user operations on the screen (if the screen is a touchscreen). The main control module 50 can be a built-in MCU microcontroller module in the speaker system. For example, the MCU microcontroller module can be a control circuit built around a controller with control functions, such as a microcontroller / microprocessor / central processing unit, with peripheral functional modules for sensing user operations / system status, external environment, etc., and equipped with necessary memory for storing program instructions. It can run based on languages ​​such as C / C++ / JAVA. This part is well known to those skilled in the art and will not be elaborated here.

[0035] The screen module 60 generates a start signal when the screen 20 is displaying content. For example, when the user powers on the device, the screen 20 lights up, meaning it begins displaying content, and the screen module 60 generates a start signal at this time. There are several ways for the user to power on the device. For instance, if the screen 20 is flip-out, flipping it open is considered powering it on; if the screen 20 is height-adjustable, raising it (manually or electrically) is also considered powering it on; of course, it can also be done by pressing a power button or other methods. Powering on the device is not limited to activating all functional modules of the smart speaker system; it can also be limited to activating only some content, depending on the specific situation.

[0036] The detection module 70 is electrically connected to the screen module 60 and is used to initiate detection upon receiving the start signal and generate a control signal upon detecting a preset operation performed by the user. The main control module 50 is electrically connected to the detection module 70 and is used to generate a rising signal upon receiving the control signal. The drive module 80 is electrically connected to the main control module 50 and is used to control the drive module 40 to drive the microphone 30 to rise upon receiving the rising signal. In this way, the user can easily obtain the microphone without pressing it. Under the control of the microphone lifting control circuit described above, since the traditional physical pressing operation is replaced by a non-contact method, repeated mechanical friction between the microphone and the locking mechanism is fundamentally avoided, extending the service life of the device.

[0037] Specifically, please combine Figures 3 to 6 In one implementation, the detection module 70 includes a pickup submodule 72, an ADC submodule 74 electrically connected to the pickup submodule 72, and a control submodule 76 electrically connected to the ADC submodule 74. The pickup submodule 72 receives sound and converts it into an analog signal. The ADC submodule 74 converts the analog signal into a digital signal. The control submodule 76 generates a control signal when the digital signal is found to include a preset signal. The preset signal corresponds to a specific statement, and the preset operation is for the user to say that specific statement. As described above, after receiving the rising signal, the drive module 80 controls the drive module 40 to drive the microphone 30 to rise. Specifically, the pickup submodule 72 may include, for example... Figure 4 The circuit shown has port MIC1 connected to a microphone module (not shown) for sound pickup, receiving external sound. After processing, the sound is output as an analog signal from port TP. The ADC submodule 74 may include, for example... Figure 5The circuit shown uses an ADC converter chip, such as the ATT3008 chip, to convert the analog sound signal to a digital signal. The analog sound signal is input from terminals 13 and 14, or 23 and 24 (marked with hollow circles in the figure), and the converted digital signal is output from terminals 39 and 40, or 41 and 42 (marked with solid circles in the figure). The control submodule 76 may include, for example... Figure 6 The circuit shown uses a DSP chip, such as the JL7033A6, to analyze the digital signal, specifically to determine if it contains content that matches a specific phrase. If a match is found, it indicates that the user has uttered the specific phrase, such as "raise the microphone," meaning the user wants to take the microphone. At this point, the control submodule generates the control signal. The digital signal is input from terminals 20 and 21 (marked with hollow circles in the figure), and the control signal is output from terminals 61 and 62 (marked with solid circles in the figure) to the main control module 50. This analysis can extract key features representing speech using commonly used Mel-frequency cepstral coefficients, and the specific phrase is determined by comparing these key features. This is a well-known technique in the art and will not be elaborated upon. Thus, after the user utters a specific phrase, the microphone 30 rises under the control of the microphone lifting control circuit 102 for easy access, greatly facilitating user use and improving the user experience.

[0038] Furthermore, the microphone pickup submodule 72 includes a first microphone module and a second microphone module, respectively located on opposite sides of the speaker body 10. This makes it more effective in collecting the user's voice.

[0039] Specifically, please combine Figures 7 to 9 As another implementation, the smart speaker system 100 also includes a touch sensor 90. The detection module 70 includes a touch detection submodule 71 electrically connected to the touch sensor 90 and a touch control submodule 73 electrically connected to the touch detection submodule 71. The touch detection submodule 71 is used to sense a touch trajectory on the touch sensor 90 and generate a trajectory signal. The touch control submodule 73 is used to analyze whether the trajectory signal contains a preset trajectory, and if so, generate the control signal. The preset trajectory corresponds to a specific touch trajectory, and the preset operation is for the user to draw the specific touch trajectory on the touch sensor. As described above, after receiving the rising signal, the drive module 80 controls the drive module 40 to drive the microphone 30 to rise. Specifically, the touch sensor can be a resistive, capacitive, or acoustic touch sensor, as long as it can sense the user's touch operation. The touch detection submodule 71 may include, for example, Figure 8The circuit shown uses the HK11BP chip, which has a low operating current. The TCH pin is connected to the touch sensor via the PAD1 port to receive signals from the touch sensor 90 and sense the user's touch trajectory. Specifically, when a valid touch is detected on the touch sensor, the OC pin changes from low to high, and the sensitivity is adjusted by changing the capacitance value of capacitor C226. If the chip does not detect a valid touch for a preset time, such as 12 seconds, it automatically switches back to low-power mode to save energy. The trajectory signal is output from the TP_OC port. The touch control submodule 73 may include, for example,... Figure 9 The circuit shown uses the AD7066D chip. The trajectory signal is input from pin 12. After analyzing the trajectory signal and finding that it contains a preset trajectory, the resulting control signal is output to the main control module 50 through pins 21 and 22. This trajectory analysis utilizes the angle changes and length ratios of the lines connecting adjacent points in the trajectory to extract trajectory features. Then, it uses a dynamic time warping (DTW) algorithm for flexible matching, flexibly comparing the similarity between any segment of the user's trajectory and the target shape. If the similarity between a certain segment of the trajectory and the target shape exceeds a set value, it is considered to contain that specific trajectory. This is a well-known technique in the art and will not be described in detail.

[0040] Furthermore, the touch sensor 90 can be located on the microphone, and the touch sensor 90 is exposed to the user when the microphone is housed in the speaker body 10. Thus, in the housed state, the user can control the microphone 30 to rise by touching the touch sensor 90. The touch sensor 90 can also be located on the top surface 11. In this case, the touch control submodule 73 and the main control module 50 operate on the same control chip, such as the MCU microcontroller module of the main control module, thus eliminating the need for the aforementioned AD7066D chip.

[0041] Specifically, the drive module 80 may include, for example, Figure 10 The circuit shown uses a low-voltage stepper motor driver chip, GC6150F. The rising or falling signals generated by the main control module 50 are input through its 4th and 5th ports, and the driver chip outputs signals to control the driver module to drive the microphone to rise or fall. The aforementioned signals used to control the microphone to rise or fall reverse the direction of the current flowing through the motor, thereby causing the motor to rotate in both directions, which in turn drives the microphone 30 to rise or fall.

[0042] Specifically, please combine Figure 2The drive module 40 also includes a support base (not shown) driven by the motor for supporting the microphone. The microphone lifting control circuit 102 also includes an presence detection module 95 electrically connected to the main control module, used to detect whether the microphone 30 is supported by the support base, and generate a presence signal after detecting that the microphone 30 is supported by the support base, and generate a non-present signal after detecting that the microphone 30 is not supported by the support base. The main control module 50 is also used to receive the signal sent by the presence detection module after generating the rising signal, and generate a falling signal after receiving the non-present signal. The drive module 80 is also used to control the motor to drive the support base to fall after reading the falling signal. Thus, after the user removes the microphone 30, a non-present signal is generated when the microphone 30 is detected; after the main control module 50 receives the non-present signal, it generates a falling signal; after the drive module 80 reads the falling signal, it controls the motor to drive the support base to fall. Thus, after the user removes the microphone 30, the support base falls back to its original position under the control of the microphone lifting control circuit 102.

[0043] Optionally, the main control module 50 receives the signal sent by the presence detection module after generating the rising signal, and generates a falling signal after sequentially receiving the non-present signal and the present signal. Thus, after the user removes the microphone 30, a non-present signal is generated at the microphone 30 detection site; after the user returns the microphone 30, a present signal is generated at the microphone 30 detection site. The main control module 50 generates the falling signal only after sequentially receiving the non-present signal and the present signal. After reading the falling signal, the drive module 80 controls the motor to drive the support base to descend. Thus, after the user removes the microphone 30 and returns it, the support base descends to its original position under the control of the microphone lifting control circuit 102.

[0044] The presence detection module 95 may include a charging circuit for charging the microphone. Specifically, it may include, for example... Figure 11The circuit shown includes a charging chip, such as an IP2369 chip, for connecting the microphone 30's battery. The microphone 30 is connected to the charging chip via contacts on a support base, which can be referenced in the manner described in CN222721560U. Thus, when the microphone 30 is not on the support base, the charging circuit changes to an idle state, generating an idle signal indicating this idle state. The charging chip can communicate with the MCU microcontroller module of the main control module 50 via an I2C line to transmit this idle signal. This idle signal, representing the idle state, is the aforementioned non-in-place signal. Similarly, when the microphone 30 is placed back on the support base, the charging circuit returns to a non-idle state, and the non-idle signal representing this non-idle state is the aforementioned in-place signal. Of course, the in-place detection module can also be other types, such as an infrared distance sensing circuit, which can determine that the microphone 30 has been removed by detecting that the microphone 30 has moved a certain distance from the support base.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A microphone lifting control circuit for an intelligent speaker system, comprising a main control module for controlling the speaker system, characterized in that, The speaker system includes a speaker body, a screen connected to the speaker body, a microphone at least partially housed within the speaker body, and a drive module for driving the microphone to rise; the control circuit further includes a screen module, a detection module, and a drive module, wherein: The screen module is used to generate a start signal when the screen is displaying; The detection module is electrically connected to the screen module and is used to start detection after receiving the start signal and generate a control signal after detecting that the user has performed a preset operation. The main control module is electrically connected to the detection module and is used to generate an upward signal after receiving the control signal; the drive module is electrically connected to the main control module and is used to control the drive module to drive the microphone to rise after receiving the upward signal.

2. The microphone lifting control circuit of the smart speaker system as described in claim 1, characterized in that, The detection module includes a sound pickup submodule, an ADC submodule electrically connected to the sound pickup submodule, and a control submodule electrically connected to the ADC submodule. The sound pickup submodule is used to receive sound and convert the sound into an analog signal. The ADC submodule is used to convert the analog signal into a digital signal. The control submodule is used to generate a control signal when the digital signal is found to include a preset signal. The preset signal corresponds to a specific statement, and the preset operation is for the user to say the specific statement.

3. The microphone lifting control circuit of the intelligent speaker system as described in claim 2, characterized in that, The microphone pickup module includes a first microphone module and a second microphone module, which are respectively located on opposite sides of the speaker body.

4. The microphone lifting control circuit of the intelligent speaker system as described in claim 1, characterized in that, The speaker system includes a touch sensor; the detection module includes a touch detection submodule electrically connected to the touch sensor and a touch control submodule electrically connected to the touch detection submodule; The touch detection submodule is used to sense the touch trajectory on the touch sensor and generate a trajectory signal; the touch control submodule is used to analyze whether the trajectory signal contains a preset trajectory, and generate the control signal if it does; wherein, the preset trajectory corresponds to a specific touch trajectory, and the preset operation is for the user to draw the specific touch trajectory on the touch sensor.

5. The microphone lifting control circuit of the intelligent speaker system as described in claim 4, characterized in that, The touch sensor is located on the microphone and is exposed to the user when the microphone is housed in the speaker body.

6. The microphone lifting control circuit of the intelligent speaker system as described in claim 4, characterized in that, The speaker body includes a top surface on which the microphone is disposed; the touch sensor is disposed on the top surface; the touch control submodule and the main control module operate on the same control chip.

7. The microphone lifting control circuit of the intelligent speaker system as described in claim 1, characterized in that, The drive module includes a motor and a support base driven by the motor for supporting the microphone; the control circuit further includes an presence detection module electrically connected to the main control module, used to detect whether the microphone is supported by the support base, and generate a presence signal after detecting that the microphone is supported by the support base, and generate a non-present signal after detecting that the microphone is not supported by the support base; the main control module is also used to receive the signal sent by the presence detection module after generating the rising signal, and generate a falling signal after receiving the non-present signal and the presence signal in sequence; the drive module is also used to control the motor to drive the support base to fall after receiving the falling signal.

8. The microphone lifting control circuit of the intelligent speaker system as described in claim 1, characterized in that, The drive module includes a motor and a support base driven by the motor for supporting the microphone; the control circuit further includes an presence detection module electrically connected to the main control module, used to detect whether the microphone is supported by the support base, and generate a presence signal after detecting that the microphone is supported by the support base, and generate a non-present signal after detecting that the microphone is not supported by the support base; the main control module is also used to receive the signal sent by the presence detection module after generating the rising signal, and generate a falling signal after receiving the non-present signal; the drive module is also used to control the motor to drive the support base to fall after reading the falling signal.

9. The microphone lifting control circuit of the intelligent speaker system as described in claim 7 or 8, characterized in that, The position detection module includes a charging circuit for charging the microphone. The non-in-position signal is an idle signal generated when the charging circuit is in an idle state, and the in-position signal is a non-idle signal generated when the charging circuit is in a non-idle state.

10. The microphone lifting control circuit of the intelligent speaker system as described in claim 7 or 8, characterized in that, The support base is provided with contacts electrically connected to the microphone for charging the microphone.

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