Hearing aid system with self-adaptive energy collection function

Abstract

The invention relates to the technical field of hearing aids, in particular to a hearing aid system with an adaptive energy collection function, which comprises a hearing aid module comprising a hearing aid body and a hearing aid power supply arranged in the hearing aid body; the energy storage module is configured to realize energy conversion and charge a hearing aid power supply; the power management module is configured to be capable of acquiring the electric quantity information of the hearing aid body and the electric quantity information of the energy storage module, controlling the energy storage module to discharge and controlling the energy storage module to switch an energy storage mode; the energy storage module comprises a plurality of light energy storage modules, a plurality of electromagnetic wave energy storage modules and a sound wave energy storage module; the light energy storage modules are used for converting light energy of sunlight and common illumination into electric energy and storing the electric energy; the electromagnetic wave energy storage module is used for converting electromagnetic waves into electric energy and storing the electric energy; the sound wave energy storage module is used for converting sound wave energy into electric energy and storing the electric energy.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing aids, and in particular to a hearing aid system with adaptive energy harvesting. Background Art

[0002] Hearing aids are essential tools for people with hearing impairments. With the development of hearing aid technology and related battery technology, more and more rechargeable hearing aids are being introduced to the market. Most rechargeable hearing aids have a limited overall battery life and basically need to be charged once a day, and must use an appropriate charging box.

[0003] The existing technology has the following problems: the battery life is insufficient, especially when using the wireless Bluetooth function, the power consumption of the hearing aid will be significantly increased; it needs to be charged once a day, and for elderly users with hearing impairments, it is sometimes difficult to perform charging operations conveniently. Summary of the invention

[0004] The present invention can convert various forms of energy into electrical energy and adaptively switch charging and power supply modes, thereby improving the battery life of the hearing aid, helping to alleviate the hearing aid's anxiety about power consumption, and reducing the frequency of charging in the charging box.

[0005] The technical solution proposed by the present invention is: a hearing aid system with adaptive energy harvesting, comprising: A hearing aid module, the hearing aid module comprising a hearing aid body and a hearing aid power supply disposed inside the hearing aid body; An energy storage module, wherein the energy storage module is configured to realize energy conversion and charge a hearing aid power supply; A power management module, wherein the power management module is configured to obtain power information of the hearing aid body and the energy storage module, control the energy storage module to discharge, and control the energy storage module to switch energy storage mode; The energy storage module includes multiple light energy storage modules, multiple electromagnetic wave energy storage modules, and acoustic wave energy storage modules. The light energy storage module is used to convert and store the light energy of sunlight and ordinary lighting into electrical energy; the electromagnetic wave energy storage module is used to convert and store electromagnetic waves into electrical energy; the acoustic wave energy storage module is used to convert and store acoustic wave energy into electrical energy. The discharge module uses the electrical energy of the light energy storage module, the electromagnetic wave energy storage module, and the acoustic wave energy storage module to charge the hearing aid power supply.

[0006] Preferably, the optical energy storage module includes a plurality of photovoltaic panels and a charging and discharging module 1, the photovoltaic panels are connected to the hearing aid power supply through the charging and discharging module 1, the charging module 1 is connected to the power management module 1, the photovoltaic panels are arranged outside the hearing aid body, and the charging and discharging module 1 is arranged inside the hearing aid body.

[0007] Preferably, the electromagnetic wave energy storage module includes a transmitting coil 1, a receiving coil 1, an oscillation circuit, an energy storage battery 1, and a charging and discharging module 2. The oscillation circuit is connected to the energy storage battery 1, and the oscillation circuit is connected to the transmitting coil 1. The oscillation circuit is used to generate an oscillating current. The transmitting coil 1 converts the oscillating current into electromagnetic waves and transmits them to the receiving coil 1. The receiving coil 1 is used to convert the electromagnetic waves into oscillating current. The charging and discharging module 2 rectifies and filters the oscillating current and converts it into direct current of a preset voltage to charge the hearing aid power supply. The charging and discharging module 2 and the receiving coil 1 are respectively arranged inside the hearing aid body.

[0008] Preferably, the sound wave energy storage module includes a sound wave transducer, a filter, a PWM module, a transmitting coil 2 and a discharge circuit. The sound wave transducer is used to convert external sound waves into current. The sound wave transducer is connected to the filter to retain the current of the set frequency through the filter. The PWM module is connected to the filter to amplify the analog current signal and convert it into a pulse signal. The transmitting coil 2 is connected to the PWM module to generate electromagnetic waves using the pulse signal. The transmitting coil 2 cooperates with the receiving coil 1 to convert the electromagnetic waves generated by the transmitting coil 2 into an oscillating current. The oscillating current is connected to the charging and discharging module 2 through the discharge circuit. The charging and discharging module 2 rectifies and filters the oscillating current and converts it into direct current of a preset voltage to charge the hearing aid power supply. The sound wave energy storage module and the receiving coil 2 are respectively arranged in the hearing aid body.

[0009] Preferably, the power management module includes a central processing unit CPU, a battery management system BMS chip, multiple communication modules and a storage module, and one of the BMS chips is connected to the communication module and is connected to the Internet of Things through the communication module; The BMS chip is respectively connected to the charging and discharging module one and the charging and discharging module two. The BMS chip is respectively connected to the hearing aid power supply and the energy storage battery one through the charging and discharging module one and the charging and discharging module two, so as to obtain the SOC information of the hearing aid power supply and the energy storage battery one.

[0010] Preferably, the discharge circuit includes an adjusting resistor, a capacitor and an LED lamp, one end of the capacitor is connected to the LED lamp, and both ends of the resistor are respectively connected to the capacitor and the second charge and discharge module.

[0011] Preferably, an NFC radio frequency card is provided inside the hearing aid body, and an NFC card reader is provided inside the electromagnetic wave energy storage module. The card reader is connected to the CPU through the communication module, and the ID information of the hearing aid body stored in the NFC radio frequency card is read by the NFC card reader, and the ID information is sent to the CPU. The CPU compares the ID information with the ID information pre-stored in the storage module to determine whether the hearing aid body matches.

[0012] Preferably, the power management module is configured to obtain power information of the hearing aid body, power information of the energy storage module, control the discharge of the energy storage module, and control the energy storage module to switch the energy storage mode, including the following steps: Step 1, obtaining SOC information of the hearing aid power supply and energy storage battery 1, and storing the SOC information in the storage module; Step 2: determine whether the SOC of the hearing aid power supply is lower than the discharge threshold; if so, proceed to step 3; otherwise, use the hearing aid power supply to power the hearing aid body; Step 3, control the charging and discharging module 1 to connect the photovoltaic panel and the hearing aid power supply, and charge the hearing aid power supply through the photovoltaic panel; Step 4, obtaining the charging current value I of the hearing aid power supply, and if the charging current value I is lower than the preset minimum charging current value I0, an alarm signal 1 is issued; Step 5: determine whether the SOC of the energy storage battery 1 is lower than the discharge threshold. If so, issue an alarm signal 2, and then proceed to step 7; if not, proceed to the next step; Step 6: Perform identification of the hearing aid body. After successful matching, the CPU sends an identification success signal to the BMS chip. The BMS chip controls the charging and discharging module 2 to connect the energy storage battery 1 and the oscillation circuit, and charges the hearing aid power supply through the electromagnetic wave energy storage module. Step 7: Control the charging and discharging module 2 to connect the discharge circuit and the hearing aid power supply, and charge the hearing aid power supply by collecting sound wave energy.

[0013] Beneficial effects of the present invention: 1. The present invention utilizes light energy, electromagnetic waves and sound wave energy to extend the use time of hearing aids and improve charging efficiency. The weak energy in the daily environment can be used as a backup energy replenishment method to extend the life of hearing aids and charge them without induction, which greatly facilitates the use of hearing aids by elderly hearing-impaired users and reduces the frequency of charging by placing the hearing aids in the charging box at the right time.

[0014] 2. In the present invention, the sound wave is converted into current by the sound wave transducer, and the converted current signal first passes through the filter to retain the signal of the set frequency. The filter can remove unnecessary frequency components, reduce signal interference, improve the accuracy of subsequent processing, and ensure that only the sound wave energy within a specific frequency range is utilized, thereby improving the efficiency and stability of energy conversion; the transmitting coil 2 generates electromagnetic waves using the pulse signal generated by the PWM module. These electromagnetic waves are then sent to the receiving coil 1, which converts these electromagnetic waves into oscillating currents. This provides the possibility for subsequent electrical energy storage and application. By matching the number of turns and wire diameter of the coil, the energy loss during the transmission process can be reduced. The oscillating current is connected to the charging and discharging module 2 through the discharge circuit. The charging and discharging module 2 is responsible for rectifying and filtering the oscillating current and converting it into direct current of a preset voltage, ensuring that the electrical energy can be stably stored and supplied to the hearing aid for use. Electrical energy can be stored in batteries or other energy storage devices to provide continuous power support for the hearing aid when needed, which not only improves the convenience of the hearing aid, but also extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A module diagram of a hearing aid system with adaptive energy harvesting according to the present invention; Figure 2 A flow chart of the present invention for adaptively adjusting energy storage and power supply modes; Figure 3 It is a schematic diagram of the structure of the discharge circuit in the present invention. DETAILED DESCRIPTION

[0016] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0017] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0018] refer to Figure 1-3The technical solution provided by the present invention is: a hearing aid system with adaptive energy harvesting, comprising: a hearing aid module, the hearing aid module comprising a hearing aid body and a hearing aid power supply arranged inside the hearing aid body; an NFC radio frequency card is arranged inside the hearing aid body, an NFC card reader is arranged inside the electromagnetic wave energy storage module, the card reader is connected to the CPU through the communication module, the ID information of the hearing aid body stored in the NFC radio frequency card is read by the NFC card reader, and the ID information is sent to the CPU, and the CPU compares it with the ID information pre-stored in the storage module to determine whether the hearing aid body matches; An energy storage module, wherein the energy storage module is configured to realize energy conversion and charge a hearing aid power supply; A power management module, the power management module is configured to obtain the power information of the hearing aid body, the power information of the energy storage module, control the discharge of the energy storage module, and control the energy storage module to switch the energy storage mode; the power management module includes a CPU, a battery management system BMS chip, multiple communication modules and a storage module, one of the BMS chips is connected to the communication module, and is connected to the Internet of Things through the communication module; the BMS chip is respectively connected to the charging and discharging module one and the charging and discharging module two, and the BMS chip is respectively connected to the hearing aid power supply and the energy storage battery one through the charging and discharging module one and the charging and discharging module two, so as to obtain the SOC information of the hearing aid power supply and the energy storage battery one.

[0019] The discharge circuit includes an adjustment resistor, a capacitor and an LED light. One end of the capacitor is connected to the LED light, and the two ends of the resistor are respectively connected to the capacitor and the charging and discharging module 2. During the non-charging process, energy is stored through the capacitor. During the charging process, the LED light flashes to remind the user that the sound wave energy storage module is charging the hearing aid.

[0020] The energy storage module includes multiple light energy storage modules, multiple electromagnetic wave energy storage modules, and acoustic wave energy storage modules. The light energy storage module is used to convert and store the light energy of sunlight and ordinary lighting into electrical energy; the electromagnetic wave energy storage module is used to convert and store electromagnetic waves into electrical energy; the acoustic wave energy storage module is used to convert and store acoustic wave energy into electrical energy. The discharge module uses the electrical energy of the light energy storage module, the electromagnetic wave energy storage module, and the acoustic wave energy storage module to charge the hearing aid power supply.

[0021] The optical energy storage module includes a plurality of photovoltaic panels and a charging and discharging module 1. The photovoltaic panels are connected to the hearing aid power supply through the charging and discharging module 1. The charging module 1 is connected to the power management module 1. The photovoltaic panels are arranged outside the hearing aid body, and the charging and discharging module 1 is arranged inside the hearing aid body.

[0022] Photovoltaic panels are placed on the outside of the hearing aid body. Flexible photovoltaic panels can be used. Due to the limited external surface area of ​​the hearing aid, a large number of flexible photovoltaic panels cannot be arranged. The photovoltaic panels on the surface of the hearing aid are mainly used to relieve the power supply pressure of the hearing aid and provide emergency power for the hearing aid. Photovoltaic panels can not only be used to collect solar energy. Similarly, under normal indoor lighting conditions, visible light can also be collected.

[0023] The electromagnetic wave energy storage module includes a transmitting coil 1, a receiving coil 1, an oscillation circuit, an energy storage battery 1, and a charging and discharging module 2. The oscillation circuit is connected to the energy storage battery 1, and the oscillation circuit is connected to the transmitting coil 1. The oscillation circuit is used to generate an oscillating current. The transmitting coil 1 converts the oscillating current into electromagnetic waves and transmits them to the receiving coil 1. The receiving coil 1 is used to convert the electromagnetic waves into oscillating current. The charging and discharging module 2 rectifies and filters the oscillating current and converts it into direct current of a preset voltage to charge the hearing aid power supply. The charging and discharging module 2 and the receiving coil 1 are respectively arranged inside the hearing aid body.

[0024] The electromagnetic wave energy storage module is based on the existing wireless charging technology and uses the power of the energy storage battery to charge the hearing aid power supply. In this embodiment, the electromagnetic wave energy storage module can be set in the hearing aid charging box, and wireless charging can be achieved when the hearing aid is placed in the charging box.

[0025] In some preferred embodiments, an outer photovoltaic panel is arranged outside the charging box, light energy is collected by the outer photovoltaic panel, and the charging and discharging module 2 is connected to the outer photovoltaic panel, and the energy storage battery 1 is charged by the charging and discharging module 2. At the same time, the electromagnetic signal in the environment, such as the radiation signal of a mobile phone, is received by the receiving coil 1, and the electromagnetic wave is converted into current by the receiving coil 1, amplified by the charging and discharging module 2, and then rectified and filtered to generate direct current that meets the charging voltage requirements, and the hearing aid power supply placed in the charging box is charged. The charging current and charging voltage are monitored during the electromagnetic wave energy storage process by the charging and discharging module 2, and the charging process is stopped when the charging current does not meet the charging requirements.

[0026] The main function of a hearing aid is to collect external sound wave signals, amplify the signals and transmit them to the human ear, so that the user can hear external sounds. Therefore, considering that the hearing aid continuously receives sound wave signals, the energy of the sound wave signals can be used to charge the hearing aid. For this purpose, in this embodiment, a sound wave energy storage module is provided.

[0027] The sound wave energy storage module includes a sound wave transducer, a filter, a PWM module, a transmitting coil 2 and a discharge circuit. The sound wave transducer is used to convert external sound waves into current. The sound wave transducer is connected to the filter, and the current of the set frequency is retained through the filter. The PWM module is connected to the filter, and is used to amplify the analog current signal and convert it into a pulse signal. The transmitting coil 2 is connected to the PWM module, and uses the pulse signal to generate electromagnetic waves. The sound wave energy storage module and the receiving coil 2 are respectively arranged in the hearing aid body.

[0028] The transducer structure of the sound wave includes a film, an electromagnet and a coil. The sound wave drives the film to vibrate, and the film drives the coil to move. The coil moves in the magnetic field formed by the electromagnet. According to the principle of electromagnetic induction, a current is generated in the coil, thereby converting the sound wave energy into electrical energy. The converted electrical energy passes through a filter, retains a signal of a preset frequency, and amplifies the current signal through an amplifier circuit set at the front end of the PWM module, performs pulse width modulation, generates a pulse current, and the pulse current is passed to the transmitting coil 2, and electromagnetic waves are generated through the transmitting coil 2. The transmitting coil 2 cooperates with the receiving coil 1 to convert the electromagnetic waves generated by the transmitting coil 2 into an oscillating current. The oscillating current is connected to the charging and discharging module 2 through a discharge circuit, and the oscillating current is rectified and filtered by the charging and discharging module 2 to convert it into a DC power of a preset voltage to charge the hearing aid power supply.

[0029] In this embodiment, the power management module is configured to obtain the power information of the hearing aid body and the power information of the energy storage module, control the discharge of the energy storage module, and control the energy storage module to switch the energy storage mode, including the following steps: Step 1, obtaining SOC information of the hearing aid power supply and energy storage battery 1, and storing the SOC information in the storage module; Step 2: determine whether the SOC of the hearing aid power supply is lower than the discharge threshold; if so, proceed to step 3; otherwise, use the hearing aid power supply to power the hearing aid body; Step 3, control the charging and discharging module 1 to connect the photovoltaic panel and the hearing aid power supply, and charge the hearing aid power supply through the photovoltaic panel; Step 4, obtaining the charging current value I of the hearing aid power supply, and if the charging current value I is lower than the preset minimum charging current value I0, an alarm signal 1 is issued; Step 5: determine whether the SOC of the energy storage battery 1 is lower than the discharge threshold. If so, issue an alarm signal 2, and then proceed to step 7; if not, proceed to the next step; Step 6: Perform identification of the hearing aid body. After successful matching, the CPU sends an identification success signal to the BMS chip. The BMS chip controls the charging and discharging module 2 to connect the energy storage battery 1 and the oscillation circuit, and charges the hearing aid power supply through the electromagnetic wave energy storage module. Step 7: Control the charging and discharging module 2 to connect the discharge circuit and the hearing aid power supply, and charge the hearing aid power supply by collecting sound wave energy.

[0030] When it is detected that the power of the hearing aid is insufficient and cannot meet the power supply requirements, the photovoltaic panel outside the hearing aid is first turned on to supplement the power of the hearing aid. When it is detected that the charging current of the photovoltaic panel is lower than the set value, it means that the light is insufficient and cannot meet the charging requirements. At this time, an alarm signal 1 is issued to remind the user that the hearing aid is insufficient. Then, the power supply mode is automatically switched, the NFC card reader is started, and the NFC radio frequency card information is obtained. If the acquisition fails, the power supply mode is switched again, the sound wave energy storage module is connected, and the sound waves are collected to charge the hearing aid power supply to meet the needs of emergency use.

[0031] The charging and discharging module 1 and the charging and discharging module 2 in the present invention can be configured with functions as needed. In this embodiment, the charging and discharging module 1 and the charging and discharging module 2 both integrate functional devices such as charger functions, microprocessors, overvoltage protection, current measurement, and voltage measurement, and can be purchased on the market.

[0032] The embodiments disclosed in the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. The embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part, and / or installed from a removable medium. When the computer program is executed by the central processing unit (CPU), the above-mentioned functions defined in the method of the present application are executed. It should be noted that the above-mentioned computer-readable medium of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, but not limited to, a system, device or device of an electrical, magnetic, optical, electromagnetic, infrared segment, or semiconductor, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to, an electrical connection with one or more wire segments, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, electrical wire, optical cable, RF, etc., or any suitable combination of the foregoing.

[0033] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0034] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods of the present invention may be deformed or modified in any way.

Claims

1. A hearing aid system with adaptive energy harvesting, characterized in that: The system comprises: A hearing aid module, the hearing aid module comprising a hearing aid body and a hearing aid power supply disposed inside the hearing aid body; An energy storage module, wherein the energy storage module is configured to realize energy conversion and charge a hearing aid power supply; A power management module, wherein the power management module is configured to obtain power information of the hearing aid body and the energy storage module, control the energy storage module to discharge, and control the energy storage module to switch energy storage mode; The energy storage module includes multiple light energy storage modules, multiple electromagnetic wave energy storage modules, and acoustic wave energy storage modules. The light energy storage module is used to convert and store the light energy of sunlight and ordinary lighting into electrical energy; the electromagnetic wave energy storage module is used to convert and store electromagnetic waves into electrical energy; the acoustic wave energy storage module is used to convert and store acoustic wave energy into electrical energy. The discharge module uses the electrical energy of the light energy storage module, the electromagnetic wave energy storage module, and the acoustic wave energy storage module to charge the hearing aid power supply.

2. A hearing aid system with adaptive energy harvesting according to claim 1, characterized in that: The photo-energy storage module includes a plurality of photovoltaic panels and a charging and discharging module 1. The photovoltaic panels are connected to the hearing aid power supply through the charging and discharging module 1. The charging module 1 is connected to the power management module 1. The photovoltaic panels are arranged outside the hearing aid body, and the charging and discharging module 1 is arranged inside the hearing aid body.

3. A hearing aid system with adaptive energy harvesting according to claim 2, characterized in that: The electromagnetic wave energy storage module includes a transmitting coil 1, a receiving coil 1, an oscillation circuit, an energy storage battery 1, and a charging and discharging module 2. The oscillation circuit is connected to the energy storage battery 1, and the oscillation circuit is connected to the transmitting coil 1. The oscillation circuit is used to generate an oscillating current. The transmitting coil 1 converts the oscillating current into electromagnetic waves and transmits them to the receiving coil 1. The receiving coil 1 is used to convert the electromagnetic waves into oscillating current. The charging and discharging module 2 rectifies and filters the oscillating current and converts it into direct current of a preset voltage to charge the hearing aid power supply. The charging and discharging module 2 and the receiving coil 1 are respectively arranged inside the hearing aid body.

4. A hearing aid system with adaptive energy harvesting according to claim 3, characterized in that: The sound wave energy storage module includes a sound wave transducer, a filter, a PWM module, a transmitting coil 2 and a discharge circuit. The sound wave transducer is used to convert external sound waves into current. The sound wave transducer is connected to the filter to retain the current of the set frequency through the filter. The PWM module is connected to the filter to amplify the analog current signal and convert it into a pulse signal. The transmitting coil 2 is connected to the PWM module to generate electromagnetic waves using the pulse signal. The transmitting coil 2 cooperates with the receiving coil 1 to convert the electromagnetic waves generated by the transmitting coil 2 into an oscillating current. The oscillating current is connected to the charging and discharging module 2 through the discharge circuit. The charging and discharging module 2 rectifies and filters the oscillating current and converts it into direct current of a preset voltage to charge the hearing aid power supply. The sound wave energy storage module and the receiving coil 2 are respectively arranged in the hearing aid body.

5. A hearing aid system with adaptive energy harvesting according to claim 4, characterized in that: The power management module includes a central processing unit CPU, a battery management system BMS chip, multiple communication modules and a storage module, one of the BMS chips is connected to the communication module, and is connected to the Internet of Things through the communication module; The BMS chip is respectively connected to the charging and discharging module one and the charging and discharging module two. The BMS chip is respectively connected to the hearing aid power supply and the energy storage battery one through the charging and discharging module one and the charging and discharging module two, so as to obtain the SOC information of the hearing aid power supply and the energy storage battery one.

6. A hearing aid system with adaptive energy harvesting according to claim 5, characterized in that: The discharge circuit includes an adjusting resistor, a capacitor and an LED lamp. One end of the capacitor is connected to the LED lamp, and the two ends of the resistor are respectively connected to the capacitor and the second charge and discharge module.

7. A hearing aid system with adaptive energy harvesting according to claim 6, characterized in that: An NFC radio frequency card is provided inside the hearing aid body, and an NFC card reader is provided inside the electromagnetic wave energy storage module. The card reader is connected to the CPU through the communication module, and the ID information of the hearing aid body stored in the NFC radio frequency card is read by the NFC card reader, and the ID information is sent to the CPU. The CPU compares the ID information with the ID information pre-stored in the storage module to determine whether the hearing aid body matches.

8. The hearing aid system with adaptive energy harvesting according to claim 7, characterized in that: The power management module is configured to obtain power information of the hearing aid body and the energy storage module, control the energy storage module to discharge, and control the energy storage module to switch the energy storage mode, including the following steps: Step 1, obtaining SOC information of the hearing aid power supply and energy storage battery 1, and storing the SOC information in the storage module; Step 2: determine whether the SOC of the hearing aid power supply is lower than the discharge threshold; if so, proceed to step 3; otherwise, use the hearing aid power supply to power the hearing aid body; Step 3, control the charging and discharging module 1 to connect the photovoltaic panel and the hearing aid power supply, and charge the hearing aid power supply through the photovoltaic panel; Step 4, obtaining the charging current value I of the hearing aid power supply, and if the charging current value I is lower than the preset minimum charging current value I0, an alarm signal 1 is issued; Step 5: determine whether the SOC of the energy storage battery 1 is lower than the discharge threshold. If so, issue an alarm signal 2, and then proceed to step 7; if not, proceed to the next step; Step 6: Perform identification of the hearing aid body. After successful matching, the CPU sends an identification success signal to the BMS chip. The BMS chip controls the charging and discharging module 2 to connect the energy storage battery 1 and the oscillation circuit, and charges the hearing aid power supply through the electromagnetic wave energy storage module. Step 7: Control the charging and discharging module 2 to connect the discharge circuit and the hearing aid power supply, and charge the hearing aid power supply by collecting sound wave energy.

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