Bluetooth earphone and searching and positioning method

Abstract

The invention discloses a Bluetooth earphone and a searching and positioning method. The Bluetooth earphone comprises a Bluetooth main control chip, a motion detection module and a buzzer module, the Bluetooth main control chip is used for transmitting a Bluetooth signal to an intelligent terminal in the Find My network according to a preset time interval, or receiving a search instruction issued by the intelligent terminal, and sending the search instruction to the buzzer module; the motion detection module is used for detecting whether the Bluetooth headset moves or not when tracking of the Bluetooth headset and the intelligent terminal in the separated state exceeds a preset time length, and if the Bluetooth headset moves, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip; or the Bluetooth signals including the identity recognition information and the current position information of the Bluetooth headset are transmitted outwards through the Bluetooth main control chip at the same time; and the buzzer module is used for giving an alarm prompt when receiving the positioning alarm prompt instruction or the search instruction. According to the invention, efficient and accurate positioning tracking service can be realized, and the position of the earphone can be accurately positioned.

Description

Technical Field

[0001] The present invention relates to the technical field of Bluetooth headsets, and in particular to a Bluetooth headset and a search and positioning method. Background Art

[0002] For high-end noise-cancelling headphones, loss may result in relatively large economic losses, so the positioning and search functions of the headphones are extremely important.

[0003] Traditional Bluetooth anti-loss technology uses Bluetooth technology to monitor the distance between the headset and the mobile phone. Once the headset exceeds the set safety range, the mobile phone will issue an alarm or prompt message to help users quickly find lost items. However, this technology has disadvantages such as susceptibility to interference, high false alarm rate and inaccurate positioning. Summary of the invention

[0004] The main purpose of the present invention is to provide a Bluetooth headset and a search and positioning method, aiming to improve the positioning accuracy of the headset and help users quickly locate and retrieve lost headsets.

[0005] To achieve the above object, the present invention provides a Bluetooth headset, which comprises: a Bluetooth main control chip, a motion detection module and a buzzer module, wherein the motion detection module and the buzzer module are respectively connected to the Bluetooth main control chip;

[0006] The Bluetooth main control chip is used to transmit a Bluetooth signal to a smart terminal in the Find My network at a preset time interval, wherein the Bluetooth signal includes the identity information and current location information of the Bluetooth headset; or receive a search instruction issued by a smart terminal, and send the search instruction to the buzzer module;

[0007] The motion detection module is used to detect whether the Bluetooth headset moves when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time. If movement occurs, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is emitted outwardly through the Bluetooth main control chip;

[0008] The buzzer module is used to issue an alarm prompt when receiving the positioning alarm prompt instruction or the search instruction.

[0009] A further technical solution of the present invention is that the Bluetooth main control chip adopts a JL7018F chip.

[0010] A further technical solution of the present invention is that the motion detection module includes a chip U14, a resistor R58, a resistor R59, a capacitor C80 and a capacitor C81, the resistor R58 and the resistor R59 are connected in series between pin 2 and pin 12 of the chip U14, the pin 25 of the Bluetooth main control chip is connected between the resistor R59 and the pin 12 of the chip U14, and the pin 26 of the Bluetooth main control chip is connected between the resistor R58 and the pin 2 of the chip U14.

[0011] A further technical solution of the present invention is that the buzzer module includes a resistor R60, a resistor R61, a diode D7, a MOS tube Q5 and a speaker, one end of the resistor R60 is connected to pin 6 of the Bluetooth main control chip, the other end of the resistor R60 is connected to the base of the MOS tube Q5 and one end of the resistor R61, the other end of the resistor R61 is connected to the emitter of the MOS tube Q5 and grounded, the cathode of the diode D7 is connected to pin 13 of the Bluetooth main control chip and one end of the speaker, and the anode of the diode D7 is connected to the collector of the MOS tube Q5 and the other end of the speaker.

[0012] A further technical solution of the present invention is that the Bluetooth headset also includes a power supply module, and the power supply module is connected to the pin 13 of the Bluetooth main control chip.

[0013] A further technical solution of the present invention is that the Bluetooth headset also includes an indicator light and a button module, the indicator light and the button module include two indicator lights and a button module, the two indicator lights are respectively connected to pin 28 and pin 31 of the Bluetooth main control chip, and the button module is connected to pin 15 of the Bluetooth main control chip.

[0014] A further technical solution of the present invention is that the Bluetooth headset also includes an AUX module, and the AUX module is connected to the pin 17 of the Bluetooth main control chip.

[0015] A further technical solution of the present invention is that the Bluetooth headset also includes a built-in MIC module connected to the Bluetooth main control chip.

[0016] To achieve the above object, the present invention further proposes a method for finding and locating a Bluetooth headset, the method being applied to the Bluetooth headset as described above, the Bluetooth headset being communicatively connected to a smart terminal in the Find My network, the method comprising the following steps:

[0017] Step S10, pairing the Bluetooth headset with the smart terminal;

[0018] Step S20, after the pairing is successful, the Bluetooth main control chip transmits a Bluetooth signal to the smart terminal in the Find My network at a preset time interval, wherein the Bluetooth signal includes the identity information and current location information of the Bluetooth headset; or upon receiving a search instruction issued by the smart terminal, the search instruction is sent to the buzzer module;

[0019] Step S30, when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time, the motion detection module detects whether the Bluetooth headset moves, and if so, sends a positioning alarm prompt instruction to the buzzer module through the Bluetooth main control chip, or simultaneously transmits a Bluetooth signal including the identity information and current location information of the Bluetooth headset through the Bluetooth main control chip;

[0020] Step S40: the buzzer module issues an alarm prompt when receiving the positioning alarm prompt instruction or the search instruction.

[0021] A further technical solution of the present invention is that the smart terminal is an Apple device, and the step of the Bluetooth main control chip receiving the search instruction issued by the smart terminal in step S10 and sending the search instruction to the buzzer module includes:

[0022] When the Bluetooth main control chip receives the search instruction sent by the Apple device, it transmits the identity identification information and current location information to the Apple device, and the Apple device uploads the identity identification information and current location information to the iCloud server, and finally feeds back the positioning information to the user's Apple device.

[0023] The beneficial effects of the Bluetooth headset and the search and positioning method of the present invention are:

[0024] The present invention, through the above technical scheme, includes: a Bluetooth main control chip, a motion detection module and a buzzer module, the motion detection module and the buzzer module are respectively connected to the Bluetooth main control chip; the Bluetooth main control chip is used to transmit a Bluetooth signal to a smart terminal in the Find My network at a preset time interval, and the Bluetooth signal includes the identity identification information and current location information of the Bluetooth headset; or receive a search instruction issued by the smart terminal, and send the search instruction to the buzzer module; the motion detection module is used to detect whether the Bluetooth headset moves when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time, and if it moves, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, and / or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is transmitted outwardly through the Bluetooth main control chip; the buzzer module is used to give an alarm prompt when receiving a positioning alarm prompt instruction or a search instruction, and a more efficient and accurate global positioning tracking service can be achieved by using a wide network of Apple devices. Even in the case of weak signals, with the help of surrounding Apple devices, the position of the headset can be accurately located, helping users to quickly locate and retrieve the lost headset, further consolidating users' trust in the brand and improving their sense of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a system framework diagram of the Bluetooth headset of the present invention;

[0027] Figure 2 It is a schematic diagram of the pairing process of the Bluetooth headset of the present invention and the Apple mobile phone;

[0028] Figure 3 This is a flowchart of the positioning function of an Apple phone;

[0029] Figure 4 This is the circuit diagram of the Bluetooth main control chip;

[0030] Figure 5 It is the circuit diagram of the motion detection module;

[0031] Figure 6 This is the circuit diagram of the buzzer module;

[0032] Figure 7 It is the circuit diagram of the power supply module;

[0033] Figure 8 It is the circuit diagram of the indicator light and button module;

[0034] Fig. 9 This is the circuit diagram of the AUX module;

[0035] Fig.10 It is the circuit diagram of the MIC module;

[0036] Fig.11 It is a flow chart of the method for searching and locating a Bluetooth headset of the present invention.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention takes into account that the traditional Bluetooth anti-lost technology uses Bluetooth technology to monitor the distance between the headset and the mobile phone. Once the headset exceeds the set safety range, the mobile phone will issue an alarm or prompt information to help users quickly find the lost items. However, this technology has the disadvantages of being susceptible to interference, high false alarm rate and inaccurate positioning. Therefore, the present invention proposes a solution.

[0040] The technical solution adopted by the present invention is mainly to apply Apple's Find My technology to headphones, and to use the extensive Apple device network to achieve more efficient and accurate global positioning tracking services. Even in the case of weak signals, with the help of surrounding Apple devices, the position of the headphones can be accurately located, helping users to quickly locate and retrieve lost headphones, further consolidating users' trust in the brand and improving their sense of use.

[0041] Specifically, the present invention provides a Bluetooth headset, such as Figure 1 As shown, a preferred embodiment of the Bluetooth headset of the present invention includes a Bluetooth main control chip, a motion detection module and a buzzer module, and the motion detection module and the buzzer module are respectively connected to the Bluetooth main control chip.

[0042] The Bluetooth main control chip is used to transmit Bluetooth signals to smart terminals in the Find My network at preset time intervals. The Bluetooth signals include the identity information and current location information of the Bluetooth headset; or receive search instructions issued by the smart terminal and send the search instructions to the buzzer module.

[0043] The motion detection module is used to detect whether the Bluetooth headset moves when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time. If movement occurs, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, and / or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is emitted through the Bluetooth main control chip.

[0044] The buzzer module is used to issue an alarm prompt when receiving a positioning alarm prompt instruction or a search instruction.

[0045] In this embodiment, the Bluetooth headset is, for example, a headphone, and the smart terminal may be an Apple device, such as an iPad, an Apple mobile phone, or other device terminals. The Find My function involved in the present invention is described below using a headphone and an Apple device as an example.

[0046] To use the Find My function, you first need to pair the headset Bluetooth main controller with the iPhone. The software pairing process is as follows: Figure 2 After pairing is completed, users can enable the positioning function. The positioning function process of an Apple phone is as follows: Figure 3 shown.

[0047] When a Bluetooth headset is lost, the Bluetooth main control chip will emit a Bluetooth signal at a certain time interval, and the signal contains the device's identification information, etc. When the surrounding Apple devices or other devices that support the Find My network and have the corresponding function turned on receive this signal, they will be able to identify the presence of the headset with the Find My function.

[0048] When the user searches for the headset through the Find My application on the Apple device, the search command will be transmitted through the Bluetooth network. After the Bluetooth main control chip receives the search command from the nearby Apple device, it will transmit the location information and other data stored in itself to the Apple device via Bluetooth, and then the Apple device will upload the data to the iCloud server, and finally feedback the positioning information to the user APP to help the user determine the approximate location of the product.

[0049] In this embodiment, the Bluetooth main control chip adopts JL7018F chip.

[0050] The JL7018F chip is a high-performance Bluetooth audio master chip that supports the Bluetooth 5.3 standard, has low power consumption, high-quality audio transmission capabilities, and supports multiple audio decoding formats. In addition, the JL7018F chip integrates digital signal processing (DSP) functions, which can provide a clear and realistic sound quality experience, while supporting advanced audio technologies such as active noise cancellation (ANC) and environmental noise cancellation (ENC) to further enhance the audio effect.

[0051] In the headset, the JL7018F chip is responsible for handling core functions, including Bluetooth communication, audio decoding, noise control, and external interface management. Through Bluetooth 5.3, it can achieve stable wireless connection with devices such as smartphones and provide high-quality audio transmission. At the same time, the built-in noise reduction technology can optimize the sound quality. Especially in noisy environments, ANC and ENC technologies effectively reduce external noise, ensure a clear audio experience, and enhance the user's immersion. The circuit of the Bluetooth main control chip is as follows Figure 4 shown.

[0052] It should be noted here that Figure 1 and Figure 4 The TVS tube in the circuit can be selected from model ST0321D4S, HY9N3BU-D or ESD2D005LA. Figure 4 The AGND in the middle should be short-circuited to the chip substrate ground nearby. The DAC output noise suppression circuit must be reserved. The actual values ​​of the capacitors and inductors are subject to debugging. PGND routing requirements: The main control does not distinguish between PGND and GND. PGND should be short-circuited to the substrate nearby. The DC-DC filter capacitor ground must be short-circuited and returned to the main control substrate GND in a large area. It cannot go around and return to the substrate. The main control GND should be paved with a large area back to the battery ground, and try to ensure that a certain layer is complete. The DCDC inductor cannot be placed directly opposite the speaker and should be placed on the other side of the circuit board.

[0053] Furthermore, in this embodiment, the motion detection module includes a chip U14, a resistor R58, a resistor R59, a capacitor C80 and a capacitor C81, the resistor R58 and the resistor R59 are connected in series between pin 2 and pin 12 of the chip U14, the pin 25 of the Bluetooth main control chip is connected between the resistor R59 and the pin 12 of the chip U14, and the pin 26 of the Bluetooth main control chip is connected between the resistor R58 and the pin 2 of the chip U14.

[0054] The Find My protocol is designed with a motion detection function. When someone else's Find My device is mixed in with your belongings and is tracked for a certain period of time (3 days) in a separated state (i.e., the device is away from the owner's device), the device will automatically turn on the acceleration sensor (gsensor) to detect whether there is movement. Once movement is detected, the device will make a sound to remind you that you are being tracked by the Find My device. Conversely, this function can also detect whether your device is secretly carried by others. The circuit of the motion detection module is as follows Figure 5 As shown, the motion detection module is compatible with SC7A20E.

[0055] Furthermore, in this embodiment, the buzzer module includes a resistor R60, a resistor R61, a diode D7, a MOS tube Q5 and a speaker, one end of the resistor R60 is connected to pin 6 of the Bluetooth main control chip, the other end of the resistor R60 is connected to the base of the MOS tube Q5 and one end of the resistor R61, the other end of the resistor R61 is connected to the emitter of the MOS tube Q5 and grounded, the cathode of the diode D7 is connected to pin 13 of the Bluetooth main control chip and one end of the speaker, and the anode of the diode D7 is connected to the collector of the MOS tube Q5 and the other end of the speaker.

[0056] The buzzer module consists of a transistor driver and a buzzer. When the headset is lost, the headset can be roughly located through a nearby Apple device, and then the headset can be controlled by the mobile phone to beep, so that the device can be quickly found through sound reminders. The circuit of the buzzer module is as follows Figure 6 shown.

[0057] Furthermore, in this embodiment, the Bluetooth headset also includes a power supply module, and the power supply module is connected to the pin 13 of the Bluetooth main control chip.

[0058] In this embodiment, the user can quickly charge the headset through the TYPE-C interface. The circuit of the power supply module is as follows: Figure 7 shown. Figure 7 In the LP5308QVF battery protection IC, the power can be automatically cut off in abnormal conditions such as overvoltage, undervoltage, overcurrent and overtemperature, effectively ensuring the safety of battery charging. The charging process is intelligently regulated by the LP4069QVF charging management IC to ensure smooth charging and prevent overcharging or overdischarging, extending the battery life. Finally, the XT3410 buck converter steadily reduces the battery voltage to 1.85V. Through this complete power management solution, the system's multiple voltage requirements are met while ensuring efficient, stable operation and longer battery life.

[0059] Furthermore, in this embodiment, the Bluetooth headset also includes an indicator light and a button module, which includes two indicator lights and a button module, the two indicator lights are respectively connected to pin 28 and pin 31 of the Bluetooth main control chip, and the button module is connected to pin 15 of the Bluetooth main control chip.

[0060] In this embodiment, the four physical buttons and indicator lights of the headset improve the user's convenience of operation. The four buttons are used to adjust the volume, turn on and off, and switch noise modes. The indicator lights provide real-time feedback on the battery status, connection status, function mode (such as ANC), and fault information of the headset, helping users quickly understand the working status of the headset and improve the overall user experience. The circuit diagram of the indicator light and button module is shown in Figure 1. Figure 8 shown.

[0061] Furthermore, in this embodiment, the Bluetooth headset also includes an AUX module, and the AUX module is connected to the pin 17 of the Bluetooth main control chip.

[0062] In this embodiment, the user provides a stable wired connection through the 3.5mm audio interface, allowing the user to enjoy a high-quality audio experience even when Bluetooth is unavailable or the battery is exhausted. After connecting to the device, the headset can play audio directly, avoiding wireless signal interference or delay problems. The circuit of the AUX module is as follows Fig. 9 shown.

[0063] Furthermore, in this embodiment, the Bluetooth headset also includes a built-in MIC module connected to the Bluetooth main control chip.

[0064] This embodiment combines ANC and ENC technologies to provide a better call and audio experience. The built-in microphone of the headset is not only used to pick up the user's voice, but also effectively filters external noise through ENC technology to ensure clear calls in noisy environments. The ANC technology actively reduces external noise through reverse sound waves to enhance the immersive feeling during audio playback. The combination of these technologies enables the headset to provide clearer and purer sound output and input during calls and music enjoyment, improving the overall user experience. The circuit of the MIC module is as follows Fig.10 shown.

[0065] The beneficial effects of the Bluetooth headset of the present invention are:

[0066] The present invention, through the above technical scheme, includes: a Bluetooth main control chip, a motion detection module and a buzzer module, the motion detection module and the buzzer module are respectively connected to the Bluetooth main control chip; the Bluetooth main control chip is used to transmit a Bluetooth signal to a smart terminal in the Find My network at a preset time interval, and the Bluetooth signal includes the identity identification information and current location information of the Bluetooth headset; or receive a search instruction issued by the smart terminal, and send the search instruction to the buzzer module; the motion detection module is used to detect whether the Bluetooth headset moves when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time, and if it moves, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, and / or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is transmitted outwardly through the Bluetooth main control chip; the buzzer module is used to give an alarm prompt when receiving a positioning alarm prompt instruction or a search instruction, and a more efficient and accurate global positioning tracking service can be achieved by using a wide network of Apple devices. Even in the case of weak signals, with the help of surrounding Apple devices, the position of the headset can be accurately located, helping users to quickly locate and retrieve the lost headset, further consolidating users' trust in the brand and improving their sense of use.

[0067] To achieve the above object, the present invention also proposes a method for finding and locating a Bluetooth headset, which is applied to the above Bluetooth headset, the Bluetooth headset is connected to a smart terminal in the Find My network, such as Fig.11 As shown, a preferred embodiment of the Bluetooth headset positioning method of the present invention includes the following steps:

[0068] Step S10: pairing the Bluetooth headset with the smart terminal.

[0069] Step S20, after pairing is successful, the Bluetooth main control chip transmits a Bluetooth signal to the smart terminal in the Find My network at a preset time interval, and the Bluetooth signal includes the identity identification information and current location information of the Bluetooth headset; or when receiving a search instruction issued by the smart terminal, the search instruction is sent to the buzzer module.

[0070] It should be noted that, in the present embodiment, when the Bluetooth headset is in a lost state, that is, when the motion detection module detects that the Bluetooth headset has moved when the Bluetooth headset and the smart terminal have been tracked in a separated state for more than a preset time, it can either actively send an alarm prompt to the buzzer module, or transmit a Bluetooth signal including the identity information and current location information of the Bluetooth headset through the Bluetooth main control chip. When the user searches for the headset, the Apple device that receives the Bluetooth signal containing the identity information and current location information of the Bluetooth headset triggers a search instruction. When the Bluetooth main control chip receives the search instruction issued by the Apple device, it sends the search instruction to the buzzer module, and the buzzer module issues an alarm prompt.

[0071] Step S30, when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time, the motion detection module detects whether the Bluetooth headset moves. If movement occurs, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is emitted through the Bluetooth main control chip.

[0072] Step S40: The buzzer module issues an alarm prompt when receiving a positioning alarm prompt instruction or a search instruction.

[0073] In this embodiment, in step S10, the Bluetooth main control chip receives the search instruction sent by the smart terminal, and the step of sending the search instruction to the buzzer module includes:

[0074] When the Bluetooth main control chip receives the search command sent by the Apple device, it transmits the identity identification information and current location information to the Apple device, and the Apple device uploads the identity identification information and current location information to the iCloud server, and finally feeds back the positioning information to the user's Apple device.

[0075] This embodiment uses the Find My function. First, you need to pair the headset Bluetooth master with the Apple device. After pairing, the user can enable the positioning function.

[0076] When the headset is lost, the Bluetooth main control chip will emit Bluetooth signals at a certain time interval, and the signal contains the device's identification information, etc. After the surrounding Apple devices or other devices that support the Find My network and have the corresponding function turned on receive this signal, they will be able to identify the existence of the headset with the Find My function.

[0077] When the user searches for the headset through the Find My application on the Apple device, the search command will be transmitted through the Bluetooth network. After the Bluetooth main control chip receives the search command from the nearby Apple device, it will transmit the location information and other data stored in itself to the Apple device via Bluetooth, and then the Apple device will upload the data to the iCloud server, and finally feedback the positioning information to the user APP to help the user determine the approximate location of the product.

[0078] The present invention utilizes the extensive Apple device network to achieve more efficient and accurate global positioning tracking services. Even in the case of weak signals, with the help of surrounding Apple devices, the position of the earphones can be accurately located, helping users to quickly locate and retrieve lost earphones, further consolidating users' trust in the brand and improving their experience of use.

[0079] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A Bluetooth headset, characterized in that: The Bluetooth headset comprises: a Bluetooth main control chip, a motion detection module and a buzzer module, wherein the motion detection module and the buzzer module are respectively connected to the Bluetooth main control chip; The Bluetooth main control chip is used to transmit a Bluetooth signal to a smart terminal in the Find My network at a preset time interval, wherein the Bluetooth signal includes the identity information and current location information of the Bluetooth headset; or receive a search instruction issued by a smart terminal, and send the search instruction to the buzzer module; The motion detection module is used to detect whether the Bluetooth headset moves when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time. If movement occurs, a positioning alarm prompt instruction is sent to the buzzer module through the Bluetooth main control chip, or a Bluetooth signal including the identity identification information and current location information of the Bluetooth headset is emitted outwardly through the Bluetooth main control chip; The buzzer module is used to issue an alarm prompt when receiving the positioning alarm prompt instruction or the search instruction.

2. The Bluetooth headset according to claim 1, characterized in that: The Bluetooth main control chip adopts JL7018F chip.

3. The Bluetooth headset according to claim 2, characterized in that: The motion detection module includes a chip U14, a resistor R58, a resistor R59, a capacitor C80 and a capacitor C81. The resistor R58 and the resistor R59 are connected in series between pin 2 and pin 12 of the chip U14, the pin 25 of the Bluetooth main control chip is connected between the resistor R59 and the pin 12 of the chip U14, and the pin 26 of the Bluetooth main control chip is connected between the resistor R58 and the pin 2 of the chip U14.

4. The Bluetooth headset according to claim 3, characterized in that: The buzzer module includes a resistor R60, a resistor R61, a diode D7, a MOS tube Q5 and a speaker, one end of the resistor R60 is connected to pin 6 of the Bluetooth main control chip, the other end of the resistor R60 is connected to the base of the MOS tube Q5 and one end of the resistor R61, the other end of the resistor R61 is connected to the emitter of the MOS tube Q5 and grounded, the cathode of the diode D7 is connected to pin 13 of the Bluetooth main control chip and one end of the speaker, and the anode of the diode D7 is connected to the collector of the MOS tube Q5 and the other end of the speaker.

5. The Bluetooth headset according to claim 4, characterized in that: The Bluetooth headset also includes a power supply module, and the power supply module is connected to the pin 13 of the Bluetooth main control chip.

6. The Bluetooth headset according to claim 5, characterized in that: The Bluetooth headset also includes an indicator light and a button module, which includes two indicator lights and a button module. The two indicator lights are respectively connected to pins 28 and 31 of the Bluetooth main control chip, and the button module is connected to pin 15 of the Bluetooth main control chip.

7. The Bluetooth headset according to claim 6, characterized in that: The Bluetooth headset also includes an AUX module, and the AUX module is connected to the pin 17 of the Bluetooth main control chip.

8. The Bluetooth headset according to claim 7, characterized in that: The Bluetooth headset also includes a built-in MIC module connected to the Bluetooth main control chip.

9. A method for finding and locating a Bluetooth headset, characterized in that: The method is applied to the Bluetooth headset according to any one of claims 1 to 8, wherein the Bluetooth headset is communicatively connected to a smart terminal in a Find My network, and the method comprises the following steps: Step S10, pairing the Bluetooth headset with the smart terminal; Step S20, after the pairing is successful, the Bluetooth main control chip transmits a Bluetooth signal to the smart terminal in the Find My network at a preset time interval, wherein the Bluetooth signal includes the identity information and current location information of the Bluetooth headset; or upon receiving a search instruction issued by the smart terminal, the search instruction is sent to the buzzer module; Step S30, when the Bluetooth headset and the smart terminal are tracked in a separated state for more than a preset time, the motion detection module detects whether the Bluetooth headset moves, and if so, sends a positioning alarm prompt instruction to the buzzer module through the Bluetooth main control chip, or simultaneously transmits a Bluetooth signal including the identity information and current location information of the Bluetooth headset through the Bluetooth main control chip; Step S40: the buzzer module issues an alarm prompt when receiving the positioning alarm prompt instruction or the search instruction.

10. The method for finding and locating a Bluetooth headset according to claim 9, characterized in that: The smart terminal is an Apple device. In step S10, the Bluetooth main control chip receives a search instruction issued by the smart terminal, and the step of sending the search instruction to the buzzer module includes: When the Bluetooth main control chip receives the search instruction sent by the Apple device, it transmits the identity identification information and current location information to the Apple device, and the Apple device uploads the identity identification information and current location information to the iCloud server, and finally feeds back the positioning information to the user's Apple device.

Images