Wireless collar microphone receiving end and mobile phone end audio transmission reminding method and device

Abstract

The application provides a wireless collar microphone receiving end and mobile phone end audio transmission reminding method and device, relates to the wireless audio transmission field, and the method establishes the dual-mode physical connection of the receiving end and the mobile phone end, realizes the two-way audio transmission through the communication interface; the audio transaction state is captured in real time through the intelligent transaction sensing engine, the audio signal characteristics are recorded by using the counter, and the data is directly written into the USB endpoint register; the multi-modal feedback device is activated according to the audio transaction state type. The application realizes the comprehensive sensing and feedback of the audio state, the audio transaction and the equipment state by establishing the intelligent transaction sensing engine between the receiving end and the mobile phone end and combining the multi-modal interaction device. The system can provide real-time intelligent reminding through the stroboscopic, color change and tactile feedback mechanism of the LED light source, and help the user better understand the current equipment state.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wireless audio transmission, in particular to a wireless lavalier microphone receiving end and mobile phone end audio transmission prompting method and device. BACKGROUND

[0002] With the continuous development of wireless audio transmission technology, especially in the scenes of conferences, live broadcasts and audio recording, wireless microphones have become common audio acquisition devices. However, the existing wireless microphone devices usually lack intuitive real-time state feedback systems, and users have difficulty quickly understanding whether the device is currently working or whether there are abnormal conditions, especially in a multi-task environment, the synchronous feedback of the state of the audio device and the audio transaction is crucial to the user experience.

[0003] The feedback mode of the traditional wireless microphone usually only relies on a single LED indicator light, which often cannot provide comprehensive feedback information, especially in complex audio transaction processing, it is difficult to meet the user's accurate perception needs of the device state. In order to improve the user experience, a new type of intelligent feedback system is urgently needed, which can dynamically feedback to the user according to the device state and task changes during the audio transmission process. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a wireless lavalier microphone receiving end and mobile phone end audio transmission prompting method and device, by establishing an intelligent transaction perception engine between the receiving end and the mobile phone end, and combining a multi-modal interaction device, the overall perception and feedback of the audio state, audio transaction and device state are realized. The system can provide real-time intelligent reminders through the stroboscopic, color change of the LED light source and the tactile feedback mechanism, helping users better understand the current device state.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] Based on the above purpose, in the first aspect, the present application provides a wireless lavalier microphone receiving end and mobile phone end audio transmission prompting method, comprising the following steps:

[0007] Establishing a dual-mode physical connection between the receiving end and the mobile phone end, realizing bidirectional audio transmission through a communication interface;

[0008] Real-time capture of the audio transaction state by the intelligent transaction perception engine, using a counter to record the audio signal characteristics, and directly writing the data into the USB endpoint register;

[0009] Activating the multi-modal feedback device according to the type of audio transaction state, including:

[0010] When the recording state is detected, the LED array is controlled to generate a dynamic light wave and perform a left-to-right scan;

[0011] When the playing state is detected, pulse blue light is generated, the flickering frequency is synchronized with the audio amplitude, and the piezoelectric actuator is triggered to generate tactile vibration of corresponding amplitude intensity;

[0012] When the abnormal state is detected, the breathing light is activated, and the specific error type is prompted through the light coding and vibration sequence of Morse code.

[0013] As a further scheme of the present application, the communication interface is a Type-C or Lightning interface; the counter is a 32-bit ring buffer counter; when the recording state is detected, the RGBW LED array generates a green dynamic light wave with a wavelength of 520 nm, performs a left-to-right scanning at a frequency of 2 Hz; when the playing state is detected, pulse blue light with a wavelength of 450 nm is generated, the flickering frequency is synchronized with the audio amplitude, and the TDK PowerHap piezoelectric actuator is triggered to generate tactile vibration of corresponding amplitude intensity; when the abnormal state is detected, the red breathing light with a wavelength of 620 nm is activated.

[0014] As a further scheme of the present application, the display mode of the LED array includes an ambient light self-adaptive adjustment step:

[0015] The ambient brightness and color temperature parameters are obtained through a TSL2591 ambient light sensor, and the LED brightness and color temperature are dynamically adjusted;

[0016] When the infrared sensor detects that the receiving end is in a wearing state, the LED array brightness is automatically increased to a preset visible threshold, and in a non-wearing state, it is switched to a low-power breathing mode.

[0017] As a further scheme of the present application, the intelligent transaction awareness engine performs 256-level transaction intensity analysis, including:

[0018] A transaction priority queue is established according to the data flow of the USB endpoint register;

[0019] The Kalman filtering algorithm is used to predict the frequency fluctuation trend of the audio signal, and the conference mode, live mode and professional mode are dynamically switched, wherein in the professional mode, the LED is triggered to flicker at a high frequency of 8-12 Hz, and the frequency is kept in an integer multiple relationship with the audio sampling rate.

[0020] As a further scheme of the present application, the identification of the abnormal state includes:

[0021] The VBUS voltage fluctuation of the USB interface is monitored in real time, and an under-voltage alarm is triggered when the voltage is lower than 4.5V for 100ms;

[0022] Detecting the impedance deviation of D+ / D- signal line, if the impedance value exceeds the preset range, automatically switching the standby pin to re-enumerate the device, and displaying the corresponding fault code in the LED array.

[0023] As a further scheme of the present application, it further comprises a user habit learning function:

[0024] Recording the user's adjustment preference for the intensity of tactile feedback at different time periods;

[0025] Predicting the user's expected feedback mode through a hidden Markov model and automatically saving it to the device configuration file;

[0026] When it is detected that the user has rejected automatic configuration twice in a row, permanently disable the adaptive adjustment function in the corresponding scenario.

[0027] As a further scheme of the present application, the generation of tactile feedback includes:

[0028] According to the RMS value of the audio amplitude, calculate the tactile intensity level, and map the driving frequency of the LRA linear motor as a function of the amplitude change rate;

[0029] When starting in the playing state, generate three short pulse vibrations as operation confirmation feedback, with a 50ms interval between each pulse.

[0030] As a further scheme of the present application, it further comprises intelligent diagnosis and self-repair steps:

[0031] When detecting 3 consecutive USB enumeration failures, automatically switch to Bluetooth backup transmission mode;

[0032] Receive the differential firmware package through the OTA upgrade module, and update the filtering parameters of the transaction awareness engine after performing CRC check during the idle period.

[0033] As a further scheme of the present application, the scanning mode of the LED array includes dynamic path optimization:

[0034] According to the last 10 user operation records, automatically adjust the light wave scanning direction and speed;

[0035] In conference mode, use a spiral diffusion scanning path, and in live mode, use a zigzag fast scanning path.

[0036] As a further scheme of the present application, the method further comprises an ambient noise compensation step:

[0037] Acquire the ambient noise spectrum through the built-in microphone of the receiving end;

[0038] When detecting high-frequency noise above 80dB, automatically enhance the LED brightness change amplitude and simultaneously increase the tactile feedback intensity to 150% of the reference value.

[0039] As a further scheme of the present application, the classification of the audio transaction state comprises:

[0040] An audio scene classification model based on MFCC features is established to identify speech, music, and environmental sound categories in real time.

[0041] A directional LED beam focusing effect is triggered for speech-type audio, and a rainbow color gradient light effect is generated for music-type audio.

[0042] In a second aspect, the present application provides a wireless lavalier microphone receiving end and mobile phone audio transmission prompting device, comprising the following components:

[0043] A dual-mode physical connection interface module supports Type-C and Lightning protocols and is configured with an impedance matching circuit and an electrostatic protection unit.

[0044] An intelligent state indication module includes a 6x6 dot matrix arranged RGBW dual-color temperature LED array, and its driving circuit integrates a PWM dimming controller.

[0045] An intelligent transaction awareness engine is composed of a 32-bit ring buffer counter, a DMA controller, and a USB endpoint register, and is configured to analyze audio signal features in real time.

[0046] A haptic feedback module includes a dual actuator array of TDK PowerHap piezoelectric actuators and LRA linear motors.

[0047] An environmental perception unit integrates a TSL2591 high-precision ambient light sensor and a TMF8820 ToF infrared sensor.

[0048] A master control module connects all components through an IC bus and performs dynamic frequency prediction.

[0049] As a further scheme of the present application, the intelligent state indication module comprises:

[0050] A wavelength-selective filter array is configured to achieve ±5nm precision spectral control in the 520nm, 450nm, and 620nm wavelength bands.

[0051] A scanning driving circuit supports left-to-right, spiral diffusion, and Z-shaped scanning mode switching.

[0052] An ambient light compensation unit adjusts the LED driving current in real time through a logarithmic amplifier to maintain the inverse relationship between brightness and ambient light intensity.

[0053] As a further scheme of the present application, the intelligent transaction awareness engine comprises:

[0054] 256-level transaction intensity analyzer configured to build a priority queue based on USB packet timestamp;

[0055] Kalman filter dynamic predictor, whose state equation contains a first-order derivative term of audio amplitude and a second-order derivative term of frequency;

[0056] Mode switching decision unit automatically triggers conference / live / professional mode state transition according to SNR threshold.

[0057] As a further scheme of the present application, the haptic feedback module comprises:

[0058] Amplitude-haptic mapping unit converts audio RMS value to LRA motor driving frequency, satisfying Where f is the driving frequency; μ is a constant related to the relationship between driving frequency and RMS value; A is the RMS value (root mean square value, indicating the intensity of the signal) of the audio signal;

[0059] Phase synchronization circuit ensures that the vibration waveform of the piezoelectric actuator and the LED flicker are phase-synchronized within ±10ms;

[0060] Energy recovery unit configured to collect the reverse electromotive force of the piezoelectric material and store it to the energy storage capacitor.

[0061] As a further scheme of the present application, the environment perception unit comprises:

[0062] Dynamic wearing detection module judges the device wearing state by measuring the 10-50mm distance change rate through the ToF sensor;

[0063] Color temperature compensation algorithm module establishes the complementary relationship matrix of ambient light color temperature and LED display color temperature based on CIE1931 color space.

[0064] As a further scheme of the present application, it further includes an intelligent diagnosis module:

[0065] USB state monitoring unit, which detects VBUS voltage fluctuation and D+ / D- signal impedance in real time, is configured with a comparator array;

[0066] Self-repairing control unit, comprising a backup pin switching matrix and an emergency power supply circuit, activates the Bluetooth transparent channel when detecting 3 consecutive enumeration failures.

[0067] As a further scheme of the present application, the main control module comprises:

[0068] Dual-core ARM Cortex-M4 processor, responsible for audio transaction processing and feedback control respectively;

[0069] Real-time clock synchronization unit ensures that the synchronization error of LED scanning timing, haptic feedback and audio sampling clock is less than 1us.

[0070] User habit learning module establishes the state transition probability matrix of user operation mode through hidden Markov model.

[0071] As a further scheme of the present application, it further comprises an OTA upgrade module:

[0072] Differential firmware update unit is configured to receive and verify firmware package through AES-128 encryption channel;

[0073] Safe start loader contains two-level backup image area and rollback counter, and supports automatic recovery of the last stable version in case of failure.

[0074] As a further scheme of the present application, the driving circuit of the LED array comprises:

[0075] Constant current source matrix, each LED unit is independently configured with 0-20mA programmable current source;

[0076] Thermal compensation circuit adjusts the maximum driving current in real time through NTC thermistor, and meets the temperature compensation relationship of the maximum driving current:

[0077]

[0078] In the formula, I max is the maximum driving current; K is a constant related to the relationship between current and temperature; T is the current temperature (unit: ℃); 25 represents the reference temperature at normal temperature (25℃).

[0079] As a further scheme of the present application, the amplitude-haptic mapping unit comprises:

[0080] Nonlinear gain regulator is configured to provide +6dB haptic enhancement in the frequency band of 80-120Hz;

[0081] Frequency limiter limits the output vibration frequency to not exceed the upper limit (250Hz) of human tactile sensitivity area.

[0082] Compared with the prior art, the wireless collar microphone receiving end and mobile phone audio transmission reminding method and device have the following beneficial effects:

[0083] The application realizes a multi-modal intelligent reminding function, provides intuitive audio state and device state reminders for users through stroboscopic, color change and tactile feedback of an LED light source, greatly improves use convenience, has intelligent transaction sensing capability, uses an intelligent transaction sensing engine to capture an audio transaction state in real time and perform 256-level transaction intensity analysis, can accurately identify different audio scenes, uses an RGBW LED array and a specific wavelength light source, can generate unique visual effects for different states, such as a green dynamic light wave in a recording state, a pulse blue light in a playing state, etc., through a TDK PowerHap piezoelectric actuator and an LRA linear motor, can generate tactile vibration of corresponding intensity according to an audio amplitude, enhances user experience, through an ambient light sensor and an infrared sensor, can automatically adjust LED display effects according to ambient brightness and wearing state, can detect abnormal states and automatically switch to a standby mode, improves system stability, significantly improves user experience and functionality of a wireless microphone system, and has high practical value.

[0084] These aspects or other aspects of the present application will be more apparent in the following description of the embodiments. It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0085] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the exemplary embodiments or the related art description. The drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the embodiments of the present application, and do not constitute a limitation of the present application. In the drawings:

[0086] Figure 1 A flow chart of a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method according to an embodiment of the present application.

[0087] Figure 2 A flow chart of an intelligent transaction sensing engine performing 256-level transaction intensity analysis in a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method according to an embodiment of the present application.

[0088] Figure 3 A flow chart of ambient light self-adaptive adjustment in a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method according to an embodiment of the present application.

[0089] Figure 4 A flow chart of abnormal state identification in a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method according to an embodiment of the present application.

[0090] Figure 5A flow chart of environment noise compensation in a wireless collar microphone receiving end and mobile phone end audio transmission reminding method of an embodiment of the present application. DETAILED DESCRIPTION

[0091] The present application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the following described embodiments or technical features can be combined with each other to form new embodiments without conflict.

[0092] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application are further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0093] It should be noted that all the expressions of "first" and "second" in the embodiments of the present application are used to distinguish two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only used for convenience of description and should not be understood as a limitation of the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, the process, method, system, product or device inherently includes other steps or units.

[0094] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0095] The flow chart shown in the drawings is only an example and does not necessarily include all the contents and operations / steps, nor does it necessarily be executed in the described order. For example, some operations / steps can be decomposed, combined or partially merged, so the actual execution order can be changed according to the actual situation.

[0096] Some embodiments of the present application will be described in detail below in conjunction with the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0097] The feedback mode of the traditional wireless microphone usually only relies on a single LED indicator light, which often cannot provide comprehensive feedback information, especially in complex audio transactions, it is difficult to meet the user's accurate perception demand for the device state. The present application provides a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method and device, by establishing an intelligent transaction perception engine between the receiving end and the mobile phone end, and combining a multi-modal interaction device, the audio state, audio transaction and device state are comprehensively perceived and fed back. The system can provide real-time intelligent reminders through the stroboscopic, color change of the LED light source and the tactile feedback mechanism, helping users better understand the current device state.

[0098] Referring to Figure 1 The embodiment of the present application provides a wireless lapel microphone receiving end and mobile phone end audio transmission reminding method, which comprises the following steps:

[0099] Step S10, a dual-mode physical connection between the receiving end and the mobile phone end is established, and bidirectional audio transmission is realized through a communication interface.

[0100] Step S20, the intelligent transaction perception engine is used to capture the audio transaction state in real time, a counter is used to record the audio signal characteristics, and the data is directly written into the USB endpoint register.

[0101] Step S30, activate the multi-modal feedback device according to the audio transaction state type.

[0102] In this embodiment, in step S10, the communication interface is a Type-C or Lightning interface, and in step S20, the counter is a 32-bit ring buffer counter.

[0103] In step S20 of this embodiment, referring to Figure 2 The intelligent transaction perception engine performs 256-level transaction intensity analysis, including:

[0104] Step S201, establish a transaction priority queue according to the data flow of the USB endpoint register;

[0105] Step S202, use Kalman filtering algorithm to predict the frequency fluctuation trend of the audio signal, dynamically switch the conference mode, live broadcast mode and professional mode, and trigger the LED to flash at 8-12Hz high frequency in the professional mode, and keep an integer multiple relationship with the audio sampling rate.

[0106] In step S30, the multi-modal feedback device is activated according to the audio transaction state type, including:

[0107] When the recording state is detected, the RGBW LED array generates a green dynamic light wave with a wavelength of 520nm, and performs a left-to-right scan at a frequency of 2Hz;

[0108] When the playing state is detected, pulsed blue light with a wavelength of 450 nm is generated, the flicker frequency is synchronized with the audio amplitude, and the TDK PowerHap piezoelectric actuator is triggered to generate tactile vibration with a corresponding amplitude intensity;

[0109] When the abnormal state is detected, a red breathing light with a wavelength of 620 nm is activated, and the specific error type is prompted through light encoding and vibration sequence of Morse code.

[0110] In this embodiment, referring to Figure 3 As shown in the figure, the display mode of the LED array includes an ambient light self-adaptive adjustment step:

[0111] Step S301, obtain the ambient brightness and color temperature parameters through the TSL2591 ambient light sensor, and dynamically adjust the LED brightness and color temperature;

[0112] Step S302, when the infrared sensor detects that the receiving end is in the wearing state, automatically increase the LED array brightness to the preset visible threshold, and switch to the low-power breathing mode in the non-wearing state.

[0113] In this embodiment, referring to Figure 4 As shown in the figure, the identification of the abnormal state includes:

[0114] Step S311, real-time monitor the VBUS voltage fluctuation of the USB interface, and trigger an under-voltage alarm when the voltage is lower than 4.5V for 100ms;

[0115] Step S312, detect the impedance deviation of the D+ / D- signal line, if the impedance value exceeds the preset range, automatically switch the standby pin to re-enumerate the device, and display the corresponding fault code on the LED array.

[0116] In some embodiments, it also includes a user habit learning function:

[0117] Record the user's adjustment preference for the intensity of the tactile feedback at different time periods;

[0118] Predict the user's expected feedback mode through a hidden Markov model, and automatically save it to the device configuration file;

[0119] When it is detected that the user has refused automatic configuration twice in a row, permanently disable the adaptive adjustment function in the corresponding scenario.

[0120] Wherein, the generation of the tactile feedback includes:

[0121] According to the RMS value of the audio amplitude, calculate the tactile intensity level, and map the driving frequency of the LRA linear motor as a function of amplitude change rate;

[0122] When the play state is started, three short pulse vibrations are generated as operation confirmation feedback, and each pulse interval is 50 ms.

[0123] In some embodiments, it also includes intelligent diagnosis and self-repair steps:

[0124] When detecting 3 consecutive USB enumeration failures, automatically switch to Bluetooth backup transmission mode;

[0125] Receive the differential firmware package through the OTA upgrade module, and update the filtering parameters of the transaction awareness engine after performing CRC check during the idle period.

[0126] In this embodiment, the scanning mode of the LED array includes dynamic path optimization:

[0127] According to the last 10 user operation records, automatically adjust the light wave scanning direction and speed;

[0128] In the conference mode, a spiral diffusion scanning path is used, and in the live mode, a zigzag fast scanning path is used.

[0129] In this embodiment, referring to Figure 5 As shown in the figure, the method further includes an ambient noise compensation step:

[0130] Step S401, the ambient noise spectrum is collected by the built-in microphone of the receiving end;

[0131] Step S402, when detecting high-frequency noise above 80 dB, automatically enhance the LED brightness change amplitude, and simultaneously increase the tactile feedback intensity to 150% of the reference value.

[0132] In this embodiment, the classification of audio transaction state includes:

[0133] Establish an audio scene classification model based on MFCC features to identify voice, music, and environmental sound categories in real time;

[0134] For voice class audio, trigger directional LED beam focusing effect, and for music class audio, generate rainbow color gradient light effect.

[0135] It should be noted that the above figures are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not for limiting purposes. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be executed synchronously or asynchronously, for example, in multiple modules.

[0136] It should be understood that although the above steps are described in a certain order, these steps are not necessarily executed in the above order. Unless explicitly stated herein, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, part of the steps of the present embodiment can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately executed with at least part of other steps or steps or stages in other steps.

[0137] In a second aspect of the embodiments of the present application, the present application also provides a wireless lavalier microphone receiving end and mobile phone end audio transmission prompting device, comprising:

[0138] A dual-mode physical connection interface module supports Type-C and Lightning protocols and is configured with an impedance matching circuit and an electrostatic protection unit.

[0139] An intelligent state indication module includes a 6x6 dot matrix arranged RGBW dual-color temperature LED array, and its driving circuit integrates a PWM dimming controller.

[0140] An intelligent transaction awareness engine is composed of a 32-bit ring buffer counter, a DMA controller, and a USB endpoint register, and is configured to analyze audio signal features in real time.

[0141] A haptic feedback module includes a dual actuator array of TDK PowerHap piezoelectric actuators and LRA linear motors.

[0142] An environmental perception unit integrates a TSL2591 high-precision ambient light sensor and a TMF8820 ToF infrared sensor.

[0143] A master control module connects each component through an IC bus and performs dynamic frequency prediction.

[0144] In the present embodiment, the intelligent state indication module includes:

[0145] A wavelength-selective filter array is configured to achieve ±5nm precision spectral control in the 520nm, 450nm, and 620nm wavelength bands.

[0146] A scanning drive circuit supports left-to-right, spiral diffusion, and zigzag scanning mode switching.

[0147] An ambient light compensation unit adjusts the LED drive current in real time through a logarithmic amplifier to maintain an inverse relationship between brightness and ambient light intensity.

[0148] In the present embodiment, the intelligent transaction awareness engine includes:

[0149] 256-level transaction intensity analyzer configured to build a priority queue based on USB packet time stamp;

[0150] Kalman filter dynamic predictor whose state equation contains a first-order derivative term of audio amplitude and a second-order derivative term of frequency;

[0151] Mode switching decision unit automatically triggers conference / live / professional mode state transition according to SNR threshold.

[0152] In this embodiment, the haptic feedback module comprises:

[0153] Amplitude-haptic mapping unit converts audio RMS value to LRA motor driving frequency, satisfying Where f is the driving frequency; μ is a constant related to the relationship between driving frequency and RMS value; A is the RMS value (root mean square value, indicating the intensity of the signal) of the audio signal;

[0154] Phase synchronization circuit ensures that the vibration waveform of the piezoelectric actuator and the LED flicker are phase-synchronized within ±10ms;

[0155] Energy recovery unit configured to collect the reverse electromotive force of the piezoelectric material and store it to the energy storage capacitor.

[0156] In this embodiment, the environment perception unit comprises:

[0157] Dynamic wearing detection module judges the device wearing state by measuring the 10-50mm distance change rate through the ToF sensor;

[0158] Color temperature compensation algorithm module establishes the complementary relationship matrix of ambient light color temperature and LED display color temperature based on CIE1931 color space.

[0159] In this embodiment, the device further comprises an intelligent diagnosis module:

[0160] USB state monitoring unit, which detects VBUS voltage fluctuation and D+ / D- signal impedance in real time, is configured with a comparator array;

[0161] Self-repairing control unit, which contains a spare pin switching matrix and an emergency power supply circuit, activates the Bluetooth transparent transmission channel when detecting 3 consecutive enumeration failures.

[0162] In this embodiment, the main control module comprises:

[0163] Dual-core ARM Cortex-M4 processor, which is responsible for audio transaction processing and feedback control respectively;

[0164] Real-time clock synchronization unit ensures that the synchronization error of LED scanning timing, tactile feedback and audio sampling clock is less than 1 mu s;

[0165] User habit learning module establishes state transition probability matrix of user operation mode through hidden Markov model.

[0166] In the embodiment, the OTA upgrade module is further included:

[0167] Differential firmware update unit is configured to receive and verify firmware package through AES-128 encryption channel;

[0168] Safe start loader contains two-level backup image area and rollback counter, and supports automatic recovery of last stable version in case of failure.

[0169] In the embodiment, the driving circuit of the LED array comprises:

[0170] Constant current source matrix, each LED unit is independently configured with 0-20mA programmable current source;

[0171] Thermal compensation circuit adjusts the maximum driving current in real time through NTC thermistor, and meets the temperature compensation relationship of the maximum driving current:

[0172]

[0173] In the formula, I max Is the maximum driving current; K is a constant related to the relationship between current and temperature; T is the current temperature (unit: ℃); 25 represents the reference temperature at normal temperature (25℃).

[0174] In the embodiment, the amplitude-tactile mapping unit comprises:

[0175] Nonlinear gain regulator is configured to provide +6dB tactile enhancement in the frequency band of 80-120Hz;

[0176] Frequency limiter limits the output vibration frequency to not exceed the upper limit (250Hz) of human tactile sensitivity area.

[0177] Through the above detailed steps, the wireless lapel microphone receiving end and the mobile phone end audio transmission reminding device is used to execute the steps of the wireless lapel microphone receiving end and the mobile phone end audio transmission reminding method in the above embodiment, which will not be repeated here.

[0178] The third aspect of the embodiment of the application also provides a computer device, comprising a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to realize the method of any one of the above embodiments.

[0179] The computer device comprises a processor and a memory, and can further comprise an input system and an output system. The processor, the memory, the input system and the output system are connected through a bus or other means. The input system can receive input digital or character information and generate signal input related to the migration of the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt. The output system can comprise a display device such as a display screen.

[0180] The memory is a non-volatile computer readable storage medium, which can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as the program instructions / modules corresponding to the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt method in the embodiments of the present application. The memory can comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created by the use of the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt method, etc. In addition, the memory can comprise a high-speed random access memory, and can further comprise a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory can optionally comprise a memory remotely arranged with respect to the processor, and these remote memories can be connected to the local modules through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0181] The processor in some embodiments can be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip. The processor is generally used to control the overall operation of the computer device. In the present embodiment, the processor is used to run the program code or process data stored in the memory. The processors of the plurality of computer devices of the computer device in the present embodiment execute various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory, i.e. implement the steps of the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt method of the above method embodiments.

[0182] It should be understood that all the embodiments, features and advantages described above for the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt method according to the present application are equally applicable to the wireless lavalier microphone receiving end and the mobile phone end audio transmission prompt and storage medium according to the present application, without mutual conflict.

[0183] Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.

[0184] Finally, it is to be appreciated that the computer readable storage medium (e.g., memory) of the subject disclosure can be tangible and non-transitory. In this regard, the computer readable storage medium can be, for example, a non-transitory storage element. A non-transitory computer readable storage medium herein can also include tangible storage elements including without limitation a magnetic storage medium; optical storage medium; solid state memory device; or any suitable combination of the same. Herein, a "non-transitory computer readable storage medium" can also include a computer readable storage medium encoded with software that functions to cause a computer to perform a process, e.g., a process for providing a user interface. In this regard, a non-transitory computer readable storage medium encoded with software that functions to cause a computer to perform a process is not a transitory propagating signal per se. A "transitory, propagating signal" means a signal per se that, when propagating in a medium, does not itself represent a result or a piece of a result of performing a process. Rather, a transitory, propagating signal represents physical particles, e.g., photons, that are propagating in a medium.

[0185] The various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein can be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0186] The above are exemplary embodiments disclosed by the present application, but it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed by the present application as defined by the claims. The functions, steps and / or actions of the method claims described herein need not be performed in any particular order. Furthermore, although elements of the embodiments disclosed by the present application can be described or claimed in individual form, unless explicitly restricted, they can also be implemented in multiple forms.

[0187] It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The embodiment number of the embodiments disclosed by the present application is only for description, and does not represent the advantages and disadvantages of the embodiments.

[0188] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope of the embodiments disclosed by the present application (including claims) is limited to these examples; under the idea of the embodiments disclosed by the present application, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes of the different aspects of the embodiments disclosed by the present application as above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principles of the embodiments disclosed by the present application shall be included in the scope of protection of the embodiments disclosed by the present application.

Claims

1. A wireless lavalier microphone receiving end and mobile phone end audio transmission prompting method, characterized in that, The method comprises the following steps: Establishing a dual-mode physical connection between the receiving end and the mobile phone end, and realizing bidirectional audio transmission through a communication interface; Real-time capture of audio transaction status through an intelligent transaction perception engine, recording of audio signal characteristics using a counter, and direct writing of data into a USB endpoint register; According to the type of audio transaction status, activating a multi-modal feedback device, including: When detecting a recording state, controlling the LED array to generate dynamic light waves, and performing a left-to-right scan at 2Hz; When detecting a playing state, generating pulsed blue light with a wavelength of 450nm, the flicker frequency being synchronized with the audio amplitude, and triggering a TDK PowerHap piezoelectric actuator to produce a haptic vibration with a corresponding amplitude intensity; When detecting an abnormal state, activating a breathing light with a wavelength of 620nm, and prompting the specific error type through light coding and vibration sequences of Morse code.

2. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 1, wherein, The communication interface is a Type-C or Lightning interface; the counter is a 32-bit ring buffer counter; when detecting a recording state, controlling the RGBW LED array to generate green dynamic light waves with a wavelength of 520nm, and performing a left-to-right scan at 2Hz; when detecting a playing state, generating pulsed blue light with a wavelength of 450nm, the flicker frequency being synchronized with the audio amplitude, and triggering a TDK PowerHap piezoelectric actuator to produce a haptic vibration with a corresponding amplitude intensity; when detecting an abnormal state, activating a red breathing light with a wavelength of 620nm.

3. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 2, wherein, The display mode of the LED array includes an ambient light self-adaptive adjustment step: Obtaining ambient brightness and color temperature parameters through a TSL2591 ambient light sensor, and dynamically adjusting LED brightness and color temperature; When the infrared sensor detects that the receiving end is in a wearing state, automatically increasing the brightness of the LED array to a preset visible threshold, and switching to a low-power breathing mode in a non-wearing state.

4. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 3, wherein, The intelligent transaction perception engine performs 256-level transaction intensity analysis, including: Establishing a transaction priority queue according to the data flow of the USB endpoint register; Using a Kalman filter algorithm to predict the frequency fluctuation trend of the audio signal, and dynamically switching between conference mode, live broadcast mode, and professional mode, wherein in the professional mode, the LED is triggered to flash at a high frequency of 8-12Hz, and the frequency is an integer multiple of the audio sampling rate.

5. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 2, wherein, The identification of the abnormal state includes: Real-time monitoring of the VBUS voltage fluctuation of the USB interface, and triggering an under-voltage alarm when the voltage is below 4.5V for 100ms; Detecting the impedance deviation of the D+ / D- signal line, and if the impedance value exceeds the preset range, automatically switching to a backup pin to re-enumerate the device, and displaying the corresponding fault code on the LED array.

6. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 5, wherein, It also includes a user habit learning function: Recording the user's adjustment preference for the intensity of haptic feedback at different times; Predicting the user's desired feedback mode through a hidden Markov model, and automatically saving it to the device configuration file; When detecting that the user has refused automatic configuration twice in a row, permanently disabling the adaptive adjustment function in the corresponding scenario.

7. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 6, wherein, The generation of haptic feedback includes: Calculating the haptic intensity level according to the RMS value of the audio amplitude, and mapping the driving frequency of the LRA linear motor as a function of the amplitude change rate; Three short pulse vibrations are generated as operation confirmation feedback when the playback state is started, and each pulse interval is 50 ms.

8. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 7, wherein, It also includes intelligent diagnosis and self-repair steps: When detecting 3 consecutive USB enumeration failures, automatically switch to Bluetooth backup transmission mode; Receive differential firmware package through OTA upgrade module, and update transaction awareness engine filter parameters after CRC check in idle period.

9. The wireless lavalier microphone receiving end and mobile phone end audio transmission reminding method of claim 8, wherein, The scanning mode of the LED array includes dynamic path optimization: According to the record of the last 10 user operations, automatically adjust the light wave scanning direction and speed; In the conference mode, a spiral diffusion scanning path is adopted, and in the live mode, a zigzag fast scanning path is adopted.

10. A wireless lavalier microphone receiving end and mobile phone end audio transmission prompting device, characterized in that, The device for executing the wireless lapel microphone receiving end and mobile phone end audio transmission reminding method as claimed in any one of claims 1-9 comprises: A dual-mode physical connection interface module supports Type-C and Lightning protocols and is configured with an impedance matching circuit and an electrostatic protection unit; An intelligent state indication module includes a dot matrix arranged dual-color temperature LED array and a driving circuit integrated with a PWM dimming controller; An intelligent transaction awareness engine is composed of a 32-bit ring buffer counter, a DMA controller, and a USB endpoint register, and is configured to analyze audio signal features in real time; A tactile feedback module includes a dual actuator array of piezoelectric actuators and LRA linear motors; An environment sensing unit integrates an ambient light sensor and an infrared sensor; A main control module connects each component through an IC bus and performs dynamic frequency prediction.

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