Music digital therapy therapeutic apparatus based on resonance conduction

Abstract

The utility model relates to the technical field of resonance circuits, and discloses a resonance conduction-based music digital therapy therapeutic apparatus, which comprises a cry recognition circuit, a display and key control circuit, a loudspeaker driving and controllable circuit, a timing and awakening circuit, a music storage circuit, a power supply circuit, a communication circuit and an MCU (Microprogrammed Control Unit). According to the application, the therapeutic apparatus is fixed on the incubator through the suction cup in a resonance conduction mode, and sound is spread and diffused by using a medium on the surface of the incubator, so that the problem of directivity of sound transmission of a common loudspeaker can be overcome, 360-degree-cycle transmission is realized, and a sound environment in a uterus can be better simulated; therefore, the newborn in the incubator can better experience the sound environment similar to the sound environment in the uterus of the mother.

Description

Technical Field

[0001] The present application relates to the technical field of resonance circuits, and in particular to a music digital therapy apparatus based on resonance conduction. Background Art

[0002] The auditory cortex of premature infants is more adapted to the womb-like mother's voice than to environmental noise. Premature infants' exposure to their mother's voice provides the newborn with the necessary auditory adaptations to shape the cerebral cortex for hearing and language development. The mother's heart sounds combined with her voice can more effectively reduce the premature infant's heart rate, stabilize emotions, promote sleep, and achieve optimal behavior.

[0003] The National Health Commission's Maternal and Child Health Care Work Specifications (No. 9, 2017) on the Guidelines for Premature Infant Health Care Services stipulates that the management of premature infants during hospitalization should adopt developmental supportive care: "Take appropriate developmental care measures, such as neonatal touch, visual and auditory stimulation, etc." "Give appropriate visual, auditory, tactile and other sensory stimulation according to the developmental level of premature infants."

[0004] How to provide a womb-like sound environment for newborns in neonatal incubators so that medical staff can better carry out developmental supportive care is an issue that needs to be urgently addressed in the neonatal department. Utility Model Content

[0005] The purpose of this application is to provide a music digital therapy device based on resonance conduction to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application discloses the following technical solutions: a music digital therapy therapeutic instrument based on resonance conduction, comprising a crying sound recognition circuit, a display and key control circuit, a speaker driving and controllable circuit, a timing and wake-up circuit, a music storage circuit, a power supply circuit, a communication circuit and an MCU;

[0007] The crying sound recognition circuit for collecting crying signals is connected to the MCU;

[0008] The display and key control circuit for performing display and key operation is connected to the I2C interface of the MCU;

[0009] The speaker driving and controllable circuit for driving the speaker and adjusting the volume is connected to the I2S interface and the IO interface of the MCU, and the speaker driving and controllable circuit is connected to the speaker;

[0010] The timing and wake-up circuit for setting the shutdown time and wake-up time is connected to the I2C interface of the MCU;

[0011] The music storage circuit for storing soothing music is connected to the SPI interface of the MCU;

[0012] Connection between the power supply circuit and the MCU for power management and charge and discharge management;

[0013] The communication circuit for transmitting signals is connected to the MCU.

[0014] Preferably, the crying sound recognition circuit includes a detection chip.

[0015] Preferably, the display and key control circuit includes a digital tube drive and keyboard control chip, a display circuit and a key circuit. The digital tube drive and keyboard control chip is connected to the MCU, and the display circuit and the key circuit are respectively connected to the digital tube drive and keyboard control chip.

[0016] Preferably, the speaker driving and controllable circuit includes a driver chip and an analog switch, the driver chip is connected to the I2S interface of the MCU, the I2S interface of the driver chip is connected to the sound input signal, and the sound output end of the driver chip is connected to the speaker; the analog switch is connected to the IO interface of the MCU.

[0017] Preferably, the timing and wake-up circuit includes an RTC chip and a crystal oscillator, the crystal oscillator is connected to the RTC chip, the RTC chip is connected to the I2C interface of the MCU, the third pin of the RTC chip outputs an interrupt signal, and the third pin of the RTC chip is connected to the power on / off circuit and the terminal input pin of the MCU.

[0018] Preferably, the music storage circuit includes an SD card driven by a standard SPI port, and the SD card is connected to the SPI interface of the MCU.

[0019] Preferably, the power supply circuit includes a power management circuit for supplying power and a charge and discharge circuit for charging and discharging a battery.

[0020] Preferably, the communication circuit includes a Bluetooth chip, which is connected to the music storage circuit through an SPI interface, to the timing and wake-up circuit through an I2C interface, to the display and button control circuit through an I2C interface, and to the speaker drive and controllable circuit through an I2S interface.

[0021] Beneficial effect: The music digital therapy therapeutic device based on resonance conduction of the present application, through the method of resonance conduction, fixes the therapeutic device on the incubator through a suction cup, and uses the surface medium of the incubator to spread and diffuse the sound, thereby overcoming the problem of the directivity of the sound propagation of ordinary speakers, achieving 360° frequency propagation, and better simulating the sound environment in the womb, so that the newborn in the incubator can better experience a sound environment similar to that in the mother's womb. When in use, the therapeutic device can be fixed on the inside of the incubator, which is simple and convenient. At the same time, the therapeutic device has an automatic timed playback function, which does not increase the workload of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a digital tube drive and keyboard control chip and its peripheral circuits provided in an embodiment of the present application;

[0024] Figure 2 A circuit schematic diagram of a display circuit and a key circuit provided in an embodiment of the present application;

[0025] Figure 3 A circuit schematic diagram of a speaker driving and controllable circuit provided in an embodiment of the present application;

[0026] Figure 4 A circuit schematic diagram of a timing and wake-up circuit provided in an embodiment of the present application;

[0027] Figure 5 A circuit schematic diagram of a music storage circuit provided in an embodiment of the present application;

[0028] Figure 6 A circuit schematic diagram of a power management circuit provided in an embodiment of the present application;

[0029] Figure 7 A circuit schematic diagram of a charge and discharge circuit provided in an embodiment of the present application;

[0030] Figure 8 A circuit schematic diagram of a communication circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0032] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0033] The auditory cortex of premature infants is more adapted to the womb-like mother's voice than to environmental noise. Premature infants' exposure to their mother's voice provides the newborn with the necessary auditory adaptations to shape the cerebral cortex for hearing and language development. The mother's heart sounds combined with her voice can more effectively reduce the premature infant's heart rate, stabilize emotions, promote sleep, and achieve optimal behavior.

[0034] To this end, this embodiment provides a music digital therapy therapeutic device based on resonance conduction, including a crying recognition circuit, a display and button control circuit, a speaker drive and controllable circuit, a timing and wake-up circuit, a music storage circuit, a power supply circuit, a communication circuit and an MCU.

[0035] The crying recognition circuit is used to collect crying signals, including a detection chip, which can be, but is not limited to, AVS8086VI. The detection chip can be transmitted to the remote control terminal of the nursing staff through wireless methods such as Bluetooth, WiFi or 5G. The remote control terminal can control the power on and off of the therapeutic device, adjust the volume, display the crying alarm signal, and the bed number information. In actual applications, one remote control terminal can be associated with and control 8 soothing devices.

[0036] The display and key control circuit is used for display and key operation. Specifically, the display and key control circuit includes a digital tube drive and keyboard control chip U1, a display circuit and a key circuit. Figure 1 As shown in the figure, the model of the digital tube driver and keyboard control chip U1 is CH455. CH455 can drive the LED display and scan the status of the keys at the same time. MCU controls CH455 through the IIC interface. Figure 2As shown, the pacifier has 10 buttons and a total of 32 LEDs. The LEDs are divided into four groups, each with eight, to display numbers, characters, and battery power. The group drivers of the four groups are connected to the group scan interface of the digital tube driver and keyboard control chip U1. Each LED in each group is connected to the segment drive interface of the digital tube driver and keyboard control chip U1. The digital tube driver and keyboard control chip U1 can scan the buttons while driving the LEDs. The 10 buttons are also divided into four groups according to their functions. They are connected to SEG0~SEG2 and DIG0~DIG3 respectively. The button trigger informs the MCU in the form of an interrupt, and the interrupt pin is the 18th pin of the digital tube driver and keyboard control chip U1.

[0037] The speaker driving and controllable circuit is used to control the resonant speaker and the ordinary speaker, wherein the resonant speaker vibration membrane is connected to the suction cup, and the suction cup can be directly attached to the incubator. Specifically, the speaker driving and controllable circuit includes a driving chip and an analog switch, such as Figure 3 As shown, the speaker driver amplifier uses a driver chip U4 of model MAX98357, and the audio signal is input through the I2S interface. The I2S interface is connected to the I2S interface of the MCU. The sound output is directly connected to the speaker. The socket SPK is connected to the speaker. The driver chip U4 supports gain adjustment and shutdown functions, and the gain adjustment is achieved by level selection. In order to achieve the purpose of gain adjustment, the MCU controls the analog switch U6 through the IO interface so that the gain pin 2 of the driver chip U4 is connected to different levels. The MCU controls the 4th pin of the driver chip U4 through the IO. After the work is completed, the amplifier is turned off and enters the low power consumption mode. In this embodiment, the model of the analog switch U6 is TMUX1204DG5R.

[0038] The timing and wake-up circuit is used to set the shutdown time and wake-up time, that is, to realize the automatic shutdown and wake-up of the soothing instrument according to the user's configuration. Figure 4 As shown, the timing and wake-up circuit includes RTC chip U10 and crystal oscillator Y2. RTC chip U10 can write the current time, set the alarm, and send an interrupt when the alarm starts. The interrupt signal can trigger the system to start up. If the system is working when the interrupt occurs, the system will ignore the alarm and set the next alarm according to the user's configuration. RTC chip U10 communicates with MCU through IIC. The interrupt signal is output by pin 3 of RTC chip U10. Pin 3 is connected to the interrupt input pin of the power on / off circuit and MCU respectively. RTC chip U10 is driven by crystal oscillator Y2, and the model of crystal oscillator Y2 is 32.768KHz.

[0039] The music storage circuit is used to store soothing music, such as Figure 5As shown, the music storage circuit includes an SD card U2 driven by a standard SPI port. Specifically, U2 is an SPI-driven SD card. It is driven by a standard SPI port, and the SPI baud rate is 25MHz. The SPI interface is connected to the SPI of the MCU. When the user configures, the MCU writes the music file to the SD card U2. When the soothing instrument is working, the MCU reads the data in the SD card U2 through the SPI port, and writes it to the driver chip U4 through the I2S interface for playback.

[0040] The power supply circuit is used for power supply management and charge and discharge management. Specifically, the power supply circuit includes a power supply management circuit for power supply and a charge and discharge circuit for battery charging and discharging. Figure 6 In the power management circuit shown, the battery is connected to J5. In order to avoid accidental short circuits that may damage the battery or even burn it, P2 in the circuit is a 250mA resettable fuse. It is disconnected when an unexpected current passes through it. U8 is a power switch. The battery voltage passes through P2 and then connects to the power switch to achieve output control of the battery voltage. When the power button or the charging port is connected, the power switch U8 is turned on to power the system. After the power-on is successful, the battery voltage takes over the switch control of U8 and keeps the switch in the on state. When the power button is pressed for 1s, the shutdown is triggered. At this time, the shutdown pin drives U9 to output a high level, thereby driving the transistor Q3 to output a low level, turning off the power switch U8. In order to prevent the MCU from losing control of the level of U9 after shutdown, C31 and R35 form a long constant voltage holding circuit to keep Q3 from outputting a low level after the MCU loses control. D6 is connected between C31, R35 and the output of U9 to isolate the fast current leakage caused by the low input impedance of U9. Since U8 has more than one control source. D3 is used to isolate the influence between them. Figure 7 In the charging and discharging circuit shown, U5 implements the battery charging and discharging management, while P1 is a 1A current limiting resettable fuse to ensure the safety of battery charging and discharging. R13 is a charging current limiting resistor. Q4 is a transistor for USB charger access monitoring, and the transistor output is connected to the MCU. When the charger is connected, the MCU informs the user of the charging status through the LED.

[0041] The communication circuit is used to transmit signals, including Bluetooth communication, Wifi communication and USB communication to connect to the host computer. After the connection is established, the music files and playback setting information in the host computer can be downloaded to the therapeutic instrument. This embodiment uses Bluetooth communication for communication, such as Figure 8As shown, the communication circuit includes a Bluetooth chip U3, and the model of the Bluetooth chip U3 is NRF52832. It communicates with the SD card U2 through the SPI interface, communicates with the RTC chip U10 through the IIC, communicates with the digital tube driver and keyboard control chip U1 through the IIC, and communicates with the driver chip U4 through the I2S.

[0042] It should be noted that the specific structure of the circuit involved in the music digital therapy apparatus based on resonance conduction disclosed in this embodiment (including but not limited to: electronic components, connection relationships between electronic components, peripheral circuits, models and specifications of electronic components) can be referred to accordingly. Figure 1-8 The specific records in this article will not be repeated here.

[0043] Working principle: Use detection chip or other similar newborn cry recognition chip to identify the cry of the newborn. When the therapeutic device recognizes the cry of the newborn, the therapeutic device starts the resonance speaker and uses the resonance speaker to play the mother's heart sound sound file to better simulate the sound environment in the mother's womb to comfort the newborn. If the therapeutic device does not recognize the cry of the newborn, the therapeutic device will start the ordinary speaker to play the set sound file according to the playback setting information.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A music digital therapy instrument based on resonance conduction, characterized in that: It includes crying recognition circuit, display and key control circuit, speaker driving and controllable circuit, timing and wake-up circuit, music storage circuit, power supply circuit, communication circuit and MCU; The crying sound recognition circuit for collecting crying signals is connected to the MCU; The display and key control circuit for performing display and key operation is connected to the I2C interface of the MCU; The speaker driving and controllable circuit for driving the speaker and adjusting the volume is connected to the I2S interface and the IO interface of the MCU, and the speaker driving and controllable circuit is connected to the speaker; The timing and wake-up circuit for setting the shutdown time and wake-up time is connected to the I2C interface of the MCU; The music storage circuit for storing soothing music is connected to the SPI interface of the MCU; Connection between the power supply circuit and the MCU for power management and charge and discharge management; The communication circuit for transmitting signals is connected to the MCU.

2. The music digital therapy apparatus based on resonance conduction according to claim 1 is characterized in that: The crying sound recognition circuit includes a detection chip.

3. The music digital therapy apparatus based on resonance conduction according to claim 1 is characterized in that: The display and key control circuit includes a digital tube drive and keyboard control chip, a display circuit and a key circuit. The digital tube drive and keyboard control chip is connected to the MCU, and the display circuit and the key circuit are respectively connected to the digital tube drive and keyboard control chip.

4. The music digital therapy apparatus based on resonance conduction according to claim 1 is characterized in that: The speaker driving and controllable circuit includes a driving chip and an analog switch. The driving chip is connected to the I2S interface of the MCU. The I2S interface of the driving chip receives a sound input signal. The sound output end of the driving chip is connected to the speaker. The analog switch is connected to the IO interface of the MCU.

5. The music digital therapy apparatus based on resonance conduction according to claim 1 is characterized in that: The timing and wake-up circuit includes an RTC chip and a crystal oscillator, the crystal oscillator is connected to the RTC chip, the RTC chip is connected to the I2C interface of the MCU, the third pin of the RTC chip outputs an interrupt signal, and the third pin of the RTC chip is connected to the power on / off circuit and the terminal input pin of the MCU.

6. The music digital therapy apparatus based on resonance conduction according to claim 1, characterized in that: The music storage circuit includes an SD card driven by a standard SPI port, and the SD card is connected to the SPI interface of the MCU.

7. The music digital therapy apparatus based on resonance conduction according to claim 1, characterized in that: The power supply circuit includes a power management circuit for supplying power and a charge and discharge circuit for charging and discharging a battery.

8. The music digital therapy apparatus based on resonance conduction according to claim 1, characterized in that: The communication circuit includes a Bluetooth chip, which is connected to the music storage circuit through an SPI interface, connected to the timing and wake-up circuit through an I2C interface, connected to the display and button control circuit through an I2C interface, and connected to the speaker drive and controllable circuit through an I2S interface.

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