Wireless earphone and positioning system

Abstract

The embodiment of the utility model discloses a wireless earphone and a positioning system, the wireless earphone comprises a communication module, a processing module, a sound production module and an orientation sensor, and the communication module is used for receiving audio data; the processing module is electrically connected with the communication module and is used for converting the audio data received by the communication module into analog signals; the sound production module is electrically connected with the processing module and is used for converting the analog signal into sound; the orientation sensor is electrically connected with the processing module and is used for measuring orientation data of the wireless earphone; wherein the processing module is further used for analyzing the azimuth data into azimuth information, and the communication module is further used for sending the azimuth information to terminal equipment. The orientation sensor is additionally arranged on the earphone to measure the orientation information of the earphone, the earphone is in communication connection with the terminal equipment, the orientation information can be sent to the terminal equipment, and the terminal equipment uses the orientation of the bone conduction earphone as the reference direction of navigation, so that the accuracy of direction navigation of the terminal equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless earphones, and in particular to a wireless earphone and a positioning system. BACKGROUND

[0002] In the related art, a smart watch can realize GPS positioning and direction navigation functions of the watch. However, the direction navigation function of the watch has a defect that the direction of the watch and the navigation direction need to be consistent, that is, the watch needs to be oriented in the same direction as the walking direction. If the watch moves together with the wrist, the navigation direction is chaotic. The user needs to stop every time for a period of time to adjust the watch to view the correct navigation direction. Thus, the user's use is cumbersome and inconvenient. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a wireless earphone and a positioning system. The wireless earphone has good consistency when worn. An azimuth sensor is arranged on the wireless earphone to measure azimuth information of the earphone, and the azimuth information is sent to a terminal device. The accuracy of orientation positioning of the terminal device is improved.

[0004] In a first aspect, the present application provides a wireless earphone. The wireless earphone includes a communication module, a processing module, a sound generating module, and an azimuth sensor. The communication module is configured to receive audio data. The processing module is electrically connected to the communication module and is configured to convert the audio data received by the communication module into an analog signal. The sound generating module is electrically connected to the processing module and is configured to convert the analog signal into sound. The azimuth sensor is electrically connected to the processing module and is configured to measure azimuth data of the wireless earphone. The processing module is further configured to analyze the azimuth data into azimuth information. The communication module is further configured to send the azimuth information to a terminal device.

[0005] In some exemplary embodiments, the azimuth sensor includes a geomagnetic sensor. The geomagnetic sensor is electrically connected to the processing module. The geomagnetic sensor is configured to measure geomagnetic data of the wireless earphone. The azimuth data of the wireless earphone includes the geomagnetic data of the wireless earphone. And / or

[0006] The azimuth sensor includes an inertial sensor. The inertial sensor is electrically connected to the processing module. The azimuth sensor is configured to measure acceleration data and angular velocity data of the wireless earphone. The azimuth data of the wireless earphone includes the acceleration data and the angular velocity data of the wireless earphone.

[0007] In some exemplary embodiments, the model of the geomagnetic sensor is LIS2MDLTR, and / or the model of the inertial sensor is LSM6DSOWTR.

[0008] In some example embodiments, the orientation sensor comprises a geomagnetic sensor and an inertial sensor, the geomagnetic sensor is configured to measure geomagnetic data of the wireless earphone, the orientation sensor is configured to measure acceleration data and angular velocity data of the wireless earphone, and the orientation data of the wireless earphone comprises the geomagnetic data, the acceleration data and the angular velocity data of the wireless earphone.

[0009] The geomagnetic sensor is electrically connected to the inertial sensor, and the inertial sensor is electrically connected to the processing module. The inertial sensor aggregates the geomagnetic data, the acceleration data and the angular velocity data of the wireless earphone, and the processing module processes the geomagnetic data, the acceleration data and the angular velocity data of the wireless earphone.

[0010] In some example embodiments, the wireless earphone further comprises a power supply module electrically connected to the orientation sensor and configured to supply power to the orientation sensor, and a switch module connected between the power supply module and the orientation sensor and electrically connected to the processing module.

[0011] In some example embodiments, the switch module comprises a load switch.

[0012] In some example embodiments, the wireless earphone comprises a circuit board, and the communication module, the processing module and the orientation sensor are all arranged on the circuit board.

[0013] In some example embodiments, the wireless earphone comprises a left earphone shell and a right earphone shell, and the orientation sensor is arranged in at least one of the left earphone shell and the right earphone shell.

[0014] In some example embodiments, the wireless earphone is a bone conduction earphone.

[0015] In the second aspect, the embodiments of the present application provide a positioning system, which comprises a wireless earphone and a terminal device. The terminal device comprises a positioning module configured to measure positioning data, and the terminal device aggregates the positioning data and the orientation information.

[0016] Beneficial effects: Since the earphone is worn on the ear, the consistency of the earphone wearing is relatively high, and the direction of the earphone wearing is also relatively fixed. By adding an orientation sensor on the earphone to measure the orientation information of the earphone, the earphone is in communication connection with the terminal device, the orientation information can be sent to the terminal device, the terminal device uses the orientation of the bone conduction earphone as the reference direction for navigation, and thus the accuracy of the direction navigation of the terminal device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0018] Figure 1 A block schematic diagram of a wireless earphone in an embodiment of the present application;

[0019] Figure 2 A block schematic diagram of a wireless earphone in another embodiment of the present application;

[0020] Figure 3 A block schematic diagram of a wireless earphone in still another embodiment of the present application;

[0021] Figure 4 A circuit schematic diagram of a geomagnetic sensor in an embodiment of the present application;

[0022] Figure 5 A circuit schematic diagram of an inertial sensor in an embodiment of the present application;

[0023] Figure 6 A block schematic diagram of a wireless earphone in still another embodiment of the present application;

[0024] Figure 7 A block schematic diagram of a wireless earphone in still another embodiment of the present application;

[0025] Figure 8 A circuit schematic diagram of a switch module in an embodiment of the present application;

[0026] Figure 9 A block schematic diagram of a positioning system in an embodiment of the present application.

[0027] Legend: 100, wireless earphone; 110, communication module; 120, processing module; 130, sound production module; 140, orientation sensor; 141, geomagnetic sensor; 142, inertial sensor; 150, power supply module; 160, switch module; 200, positioning system; 210, terminal device. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0033] like Figure 1 As shown, the first aspect of this application provides a wireless earphone 100, which is used for wireless music listening, calls, etc. The wireless earphone 100 can also be used to measure the user's orientation in real time, thereby assisting in positioning. The wireless earphone 100 can be an in-ear earphone, an ear-hook earphone, a headset, a bone conduction earphone, etc., and is not limited thereto.

[0034] The wireless earphone 100 includes a communication module 110, a processing module 120, a sound-generating module 130, and a position sensor 140.

[0035] The communication module 110 is configured to receive audio data, and the communication module 110 can include a Bluetooth module to perform wireless communication with a playing device (such as a smart watch, a mobile phone, a computer, etc.) through Bluetooth technology, and provide a wireless audio transmission function. The Bluetooth communication has strong compatibility, can support connection of multiple devices, and has stable transmission. Specifically, BLE (Bluetooth Low Energy) can be used, so that the communication range is maintained while the power consumption and cost of the device are reduced.

[0036] Exemplarily, the communication module 110 includes a Bluetooth chip and an antenna, the Bluetooth chip is responsible for wireless communication with a playing device, and the playing device sends audio data to the earphone through a Bluetooth frequency band. When the playing device sends a Bluetooth signal, the Bluetooth chip receives the signal and establishes a stable connection with the playing device to realize wireless transmission of audio data. Optionally, the communication module 110 can support multiple encoding formats (such as SBC, AAC, APTX, etc.) to improve transmission efficiency and sound quality.

[0037] The processing module 120 is electrically connected with the communication module 110, and the processing module 120 is configured to convert the audio data received by the communication module 110 into an analog signal.

[0038] The sound generating module 130 is electrically connected with the processing module 120, and is configured to convert the analog signal into sound. The sound generating module 130 can be exemplarily a loudspeaker. Optionally, an amplification unit can be integrated on the processing module 120, so as to amplify the analog signal, so that the sound emitted by the sound generating module 130 has sufficient loudness.

[0039] The orientation sensor 140 is electrically connected with the processing module 120, and is configured to measure orientation data of the wireless earphone 100. The processing module 120 is further configured to parse the orientation data into orientation information, and the communication module 110 is further configured to send the orientation information to an external terminal. The parsing means filtering and extracting the orientation data. Since the orientation data is relatively large, if the orientation data is directly sent to the terminal device 210, the amount of data to be sent will be large, which can cause delay and increase the data processing burden of the terminal device 210. In the embodiment, the processing module 120 is used to parse the orientation data, so that the amount of data of the orientation information is relatively small, and the sending is more timely.

[0040] The external terminal can be a smart watch, a mobile phone, a tablet computer, etc. The external terminal is provided with a positioning system 200, which can be exemplarily a GPS (Global Positioning System), a Beidou satellite navigation system (BDS), a GLONASS (GLONASS), and a GALILEO (GALILEO), etc.

[0041] Since the earphone is worn on the ear, the consistency of earphone wearing is relatively high, and the direction of earphone wearing is also relatively fixed. In view of the problem of inaccurate direction navigation of the watch during exercise, by adding the orientation sensor 140 on the basis of the earphone to measure the orientation information of the earphone, the earphone is in communication connection with the terminal device 210, and the orientation information can be sent to the terminal device 210, and the terminal device 210 uses the orientation of the bone conduction earphone as the reference direction for navigation, thereby improving the accuracy of direction navigation of the terminal device 210.

[0042] Exemplarily, when using the smart watch and the earphone to navigate outdoor exercise, as long as the smart watch GPS positioning is successful, even in the motion scene of running, cycling, rowing and the like in which the arm swings frequently, the direction of navigation remains accurate and is not affected by the wrist movement.

[0043] As shown in Figure 2 some embodiments, the orientation sensor 140 includes a geomagnetic sensor 141 (IMU), and the geomagnetic sensor 141 is electrically connected to the processing module 120. The geomagnetic sensor 141 is used to measure the geomagnetic data of the wireless earphone 100, and the orientation data of the wireless earphone 100 includes the geomagnetic data of the wireless earphone 100. The earth is surrounded by a huge magnetic field, called geomagnetism. The core of the geomagnetic sensor 141 is to determine the direction by detecting this geomagnetic field. The geomagnetic sensor 141 usually contains multiple magnetic sensitive elements, such as Hall elements or magnetoresistance elements, inside. These elements can sense the change of the geomagnetic field and convert it into an electrical signal. By analyzing these electrical signals, the direction of the geomagnetic sensor 141 relative to the geographical north can be calculated.

[0044] As shown in Figure 2 some embodiments, the orientation sensor 140 includes an inertial sensor 142 (Magnetometer), and the inertial sensor 142 is electrically connected to the processing module 120. The orientation sensor 140 is used to measure the acceleration data and angular velocity data of the wireless earphone 100, and the orientation data of the wireless earphone 100 includes the acceleration data and angular velocity data of the wireless earphone 100.

[0045] The basic principle of the inertial sensor 142 to measure the orientation is to measure the acceleration and angular velocity of the object in three-dimensional space, and then calculate the attitude and orientation of the object. The inertial sensor 142 mainly includes an accelerometer and a gyroscope. The accelerometer is used to measure the acceleration of the object in three directions, and the gyroscope is used to measure the angular velocity of the object in three directions. By integrating these data, the displacement and attitude change of the object in a period of time can be obtained. The inertial sensor 142 is used in combination with GPS to improve the accuracy and reliability of positioning. GPS provides latitude and longitude information, while the inertial sensor 142 provides real-time attitude information. The combination of the two can provide a more accurate navigation solution.

[0046] As Figure 2 shown, in some embodiments, the orientation sensor 140 includes a geomagnetic sensor 141 for measuring geomagnetic data of the wireless earphone 100, and an inertial sensor 142 for measuring acceleration data and angular velocity data of the wireless earphone 100. The orientation data of the wireless earphone 100 includes the geomagnetic data, the acceleration data and the angular velocity data of the wireless earphone 100. The measurement results of the geomagnetic sensor 141 are affected by various factors, mainly including the errors of the geomagnetic sensor itself and external interference, the errors of the geomagnetic sensor itself including non-orthogonal errors, scale factor errors and zero bias errors, and the external interference including fixed magnetic fields and induced magnetic fields and other external interference sources affecting the measurement results.

[0047] In order to correct these errors, it is usually necessary to combine the output of the geomagnetic sensor 141 with the data of the inertial sensor 142. By fusing acceleration and geomagnetic data, the direction of the device can be calculated more accurately, and this method is called AHRS (Attitude and Heading Reference System).

[0048] As Figure 3 and Figure 4 shown, in some embodiments, the model of the geomagnetic sensor 141 is LIS2MDLTR, the VDD pin and the VDDIO pin of the geomagnetic sensor 141 are powered by the 1.8-IMU pin, and the MAGNETIC_SDX pin and the MAGNETIC_SCX pin are two interfaces for I2C communication. The MAGNETIC_INT2 pin is the interrupt pin of the geomagnetic sensor 141, which outputs a high level when the data of the geomagnetic sensor 141 changes.

[0049] LIS2MDLTR is a high-precision magnetometer sensor with a resolution of 0.15mgauss, which can provide high-precision magnetic field measurement results. This makes it perform well in applications that require high-precision magnetic field measurement, such as navigation systems. Secondly, the sampling rate of LIS2MDLTR is as high as 1000Hz, which can obtain magnetic field data in real time, suitable for various applications that require real-time monitoring of magnetic field changes. For example, in navigation systems, by measuring the earth's magnetic field in real time, accurate direction and position information can be provided. In addition, LIS2MDLTR has a wide working temperature range from -40℃ to +85℃, which can work normally under extreme climate conditions, making it have wide application value in outdoor navigation and other fields. Finally, LIS2MDLTR supports I 2C and SPI interface types, which enables it to connect with various master chips and microcontrollers, facilitating data reading and processing. The flexibility of this interface further enhances its applicability in different applications.

[0050] As shown in Figure 3 and Figure 5 In some embodiments, the model of the inertial sensor 142 is LSM6DSOWTR, and U4 is the inertial sensor 142 chip. The IMU_MISO pin, IMU_MOSI pin, IMU_SCK pin, and IMU_CS pin are the four interfaces for SPI communication. The IMU_INT1 pin is the interrupt pin of the inertial sensor 142, which outputs a high level when there is a change in the acceleration and angular velocity data inside the inertial sensor 142.

[0051] The gyroscope and accelerometer of LSM6DSOWTR are both 16-bit data output, which can provide high-precision angle and motion data. Its built-in low-noise amplifier, filter, and digital signal processing module 120 effectively improve the measurement accuracy and stability. LSM6DSOWTR has a power consumption of only 0.55mA in high-performance mode, and supports always-on low-power function, suitable for devices that need to run for a long time. LSM6DSOWTR has high sensitivity and can quickly respond to various motion changes, suitable for applications that require high precision and fast response. LSM6DSOWTR works in a temperature range of -40℃ to +85℃, suitable for various environmental conditions. LSM6DSOWTR adopts surface mount packaging, suitable for various PCB boards and packaging shells, and has a small size of only 2.5mm x 3mm x 0.83mm. LSM6DSOWTR supports multiple serial interfaces such as SPI, IC, and MIPI I3C, enhancing the flexibility of applications.

[0052] As shown in Figure 6 In some embodiments, the geomagnetic sensor 141 is electrically connected to the inertial sensor 142, and the inertial sensor 142 is electrically connected to the processing module 120. The inertial sensor 142 aggregates the geomagnetic data, acceleration data, and angular velocity data of the wireless earphone 100, and the processing module 120 processes the geomagnetic data, acceleration data, and angular velocity data of the wireless earphone 100. Since only the inertial sensor 142 is electrically connected to the processing module 120, the number of pin soldering of the processing module 120 can be reduced. Of course, the geomagnetic sensor 141 and the inertial sensor 142 can also be electrically connected to the processing module 120 respectively.

[0053] As shown in Figure 7As shown, in some embodiments, the wireless earphone 100 further comprises a power supply module 150 and a switch module 160, the power supply module 150 is electrically connected with the orientation sensor 140, the power supply module 150 is at least used for supplying power for the orientation sensor 140, and the power supply module 150 can also supply power for the communication module 110, the processing module 120 and the generating module, etc. The power supply module 150 exemplarily can be a lithium battery.

[0054] The switch module 160 is connected between the power supply module 150 and the orientation sensor 140, and is electrically connected with the processing module 120, when the orientation sensor 140 is not needed to be used, the switch module 160 can be turned off, so as to reduce the power consumption.

[0055] As shown, in some embodiments, the switch module 160 comprises a load switch. Exemplarily, the IC U7 is the switch module 160, which is used for controlling the 1.8V power supply, facilitating flexible power supply for the geomagnetic sensor 141 and the inertial sensor 142, and cutting off the power supply when the power supply is not needed, so as to reduce the overall power consumption of the machine. Figure 8

[0056] The load switch can realize accurate control of the load in the circuit, through the control of the input signal, the load can be quickly and accurately turned on or off, so as to ensure that the device gets stable power supply when needed, and the power supply is cut off in time when not needed, so as to protect the safety of the device and the system. The load switch has low on-resistance and low leakage current, which can realize efficient power conversion and transmission, reduce energy consumption and improve the overall efficiency of the system. The load switch has fast switching speed, which can realize fast control of the load and improve the dynamic performance of the system. The load switch has high voltage isolation capability, which can effectively prevent the influence of high-voltage circuit on low-voltage circuit, and ensure the safe operation of the system. The load switch integrates MOSFET and other control circuits, which can simplify the circuit design, reduce the number of peripheral components and reduce the cost. The load switch has functions such as over-voltage protection, under-voltage lockout and thermal shutdown, which can automatically turn off the load in abnormal conditions to protect the circuit and the load from damage. By cutting off the power supply rail of the subsystem that does not need to work, the leakage current can be reduced, the standby power consumption can be reduced, and energy saving and environmental protection can be realized. The load switch has low driving voltage and driving current requirements, which is convenient for connection and driving with controller devices such as microcontrollers and digital signal processors.

[0057] As shown, in some embodiments, the switch module 160 comprises a load switch. Exemplarily, the IC U7 is the switch module 160, which is used for controlling the 1.8V power supply, facilitating flexible power supply for the geomagnetic sensor 141 and the inertial sensor 142, and cutting off the power supply when the power supply is not needed, so as to reduce the overall power consumption of the machine. Figure 8 ​As shown, in some embodiments, the model of the switch module 160 can exemplarily be LP5240HVF. The standby power consumption of LP5240HVF is only 220nA, which helps to prolong the battery life of the device, especially in portable devices that need to run for a long time. LP5240HVF has a fast discharge function, when EN is off, VOUT can quickly drop to 0V, which helps the device to enter sleep state faster when power off, reducing power waste. LP5240HVF adopts WWLCSP packaging, the size is only 0.76mm x 0.76mm, the pitch is 0.4mm, which makes it easier to integrate in compact devices. LP5240HVF has excellent on-resistance under different voltages, for example, when -VIN=5.5V, RDS(ON)=50mΩ, when VIN=1.8V, RDS(ON)=110mΩ. LP5240HVF can provide a continuous output current of up to 1.5A, meeting the needs of most applications. LP5240HVF has an automatic output discharge function, which helps to protect the circuit from continuous power supply after power off, further saving power.

[0058] In some embodiments, the wireless earphone 100 comprises a circuit board, and the communication module 110, the processing module 120 and the orientation sensor 140 are arranged on the circuit board, so as to reduce the length of the conductive part between the orientation sensor 140 and the processing module 120, and the layout of the components is more concentrated, which is beneficial to production and manufacturing.

[0059] In some embodiments, the wireless earphone 100 comprises left and right earphones, and the housings of the left and right earphones are a left earphone housing and a right earphone housing, and the orientation sensor 140 is arranged in at least one of the left earphone housing and the right earphone housing. Alternatively, when the wireless earphone 100 is a bone conduction earphone, the left earphone and the right earphone of the bone conduction earphone are usually connected by a wire, and the left earphone and the right earphone are integrated, and at this time, the orientation sensor 140 is arranged in the left earphone housing or the right earphone housing to save cost.

[0060] Alternatively, when the wireless earphone 100 is a TWS (True Wireless Stereo) earphone, the left earphone and the right earphone of the TWS earphone are usually separated, and at this time, the number of orientation sensors 140 can be two, and the two orientation sensors 140 are arranged in the left earphone housing and the right earphone housing, respectively, so that the user can assist in navigation whether wearing the left earphone or the right earphone.

[0061] As shown, Figure 9As shown, the second aspect of the embodiment of the present application provides a positioning system 200, the positioning system 200 comprises the wireless earphone 100 and a terminal device 210, the terminal device 210 comprises a positioning module, the positioning module is used for measuring positioning data, and the terminal device 210 aggregates the positioning data and the orientation information.

[0062] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A wireless earphone, characterized in that, include: The communication module is used to receive audio data; The processing module, electrically connected to the communication module, is used to convert the audio data received by the communication module into analog signals; A sound-generating module, electrically connected to the processing module, is used to convert analog signals into sound; An orientation sensor, electrically connected to the processing module, is used to measure the orientation data of the wireless earphone; The processing module is further configured to parse the azimuth data into azimuth information, and the communication module is further configured to send the azimuth information to the terminal device.

2. The wireless earphone according to claim 1, characterized in that, The orientation sensor includes a geomagnetic sensor electrically connected to the processing module. The geomagnetic sensor measures the geomagnetic data of the wireless earphone, and the orientation data of the wireless earphone includes the geomagnetic data of the wireless earphone; and / or The orientation sensor includes an inertial sensor electrically connected to the processing module. The orientation sensor is used to measure the acceleration and angular velocity data of the wireless earphone. The orientation data of the wireless earphone includes the acceleration and angular velocity data of the wireless earphone.

3. The wireless earphone according to claim 2, characterized in that, The geomagnetic sensor is model LIS2MDLTR, and / or the inertial sensor is model LSM6DSOWTR.

4. The wireless earphone according to claim 1, characterized in that, The orientation sensor includes a geomagnetic sensor and an inertial sensor. The geomagnetic sensor is used to measure the geomagnetic data of the wireless earphone, and the orientation sensor is used to measure the acceleration data and angular velocity data of the wireless earphone. The orientation data of the wireless earphone includes the geomagnetic data, acceleration data, and angular velocity data of the wireless earphone. The geomagnetic sensor is electrically connected to the inertial sensor, and the inertial sensor is electrically connected to the processing module. The inertial sensor aggregates the geomagnetic data, acceleration data, and angular velocity data of the wireless earphone, and the processing module processes the geomagnetic data, acceleration data, and angular velocity data of the wireless earphone.

5. The wireless earphone according to claim 1, characterized in that, The wireless earphones also include: The power supply module is electrically connected to the orientation sensor and is used to supply power to the orientation sensor. A switch module is connected between the power supply module and the orientation sensor, and is electrically connected to the processing module.

6. The wireless earphone according to claim 5, characterized in that, The switching module includes a load switch.

7. The wireless earphone according to claim 1, characterized in that, The wireless earphone includes a circuit board, and the communication module, the processing module and the orientation sensor are all disposed on the circuit board.

8. The wireless earphone according to claim 1, characterized in that, The wireless earphone includes a left earphone shell and a right earphone shell, and the orientation sensor is disposed in at least one of the left earphone shell and the right earphone shell.

9. The wireless earphone according to any one of claims 1-8, characterized in that, The wireless earphones are bone conduction earphones.

10. A positioning system, characterized in that, include: The wireless earphone as described in any one of claims 1-9; and A terminal device, the terminal device including a positioning module, the positioning module being used to measure positioning data, the terminal device summarizing the positioning data and the orientation information.

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