WO2021082875A1

WO2021082875A1 - Method and apparatus for switching master and slave bluetooth headsets, bluetooth headset, and system

Info

Publication number: WO2021082875A1
Application number: PCT/CN2020/119607
Authority: WO
Inventors: 罗广君; 邓玉林
Original assignee: 珠海市杰理科技股份有限公司
Priority date: 2019-10-31
Filing date: 2020-09-30
Publication date: 2021-05-06
Also published as: CN111436041B; CN111436041A

Abstract

The present invention relates to a method and apparatus for switching master and slave Bluetooth headsets, a Bluetooth headset, and a system. The method comprises: a slave headset sends the remaining power of the slave headset to a master headset; the master headset determines whether the remaining power of the slave headset and the remaining power of the master headset exceed a preset value; if the difference between the remaining power of the slave headset and the remaining power of the master headset exceeds the preset value, the master headset sends a master-slave switching request to the slave headset; the master headset and the slave headset perform a master-slave switching operation when the master-slave switching time arrives, wherein at least one of the steps performed by the two ends is completed in an idle period, the idle period is a period during which the operation for receiving and monitoring audio data packets is not performed, and is in the same standard Bluetooth time slot as at least part of the data of one audio data packet. On the one hand, the bandwidth occupation is reduced, that is, the bandwidth loss is reduced; on the other hand, the normal reception and monitoring of multiple audio data packets will not be affected, and thus audio playback stuttering will not be caused.

Description

Method and device for switching master and slave bluetooth headset, bluetooth headset and system

Technical field

The invention relates to the field of Bluetooth communication, in particular to a method and device for switching between a master and a slave Bluetooth headset, a Bluetooth headset, and a system.

Background technique

With the widespread promotion of Bluetooth technology and the improvement of people's living standards, the penetration rate of Bluetooth earphones is getting higher and higher. At present, in the process of using Bluetooth earphones, the power consumption of the main earphone and the slave earphone is inconsistent, resulting in the main earphone The power consumption rate is higher than the power consumption rate of the slave earphones. When the two earphones are used after the two earphones are fully charged, the main earphone is often powered off earlier than the slave earphones, resulting in poor user experience. At the same time, in most cases, when the master headset is short of power, users tend to charge the master and slave headsets at the same time, which will reduce the service life of the slave headsets that do not lack power.

At present, in the process of playing audio data in Bluetooth headsets, when the master headset and slave headset perform master-slave switching operations according to the power, it is often necessary to stop receiving audio data, that is, no longer receive audio data sent by the mobile phone in a standard Bluetooth time slot. Then perform the master-slave switching operation, which is easy to cause the audio playback to freeze, and the user experience is very poor.

Chinese Patent Publication CN109275069A discloses a method for intelligently switching between the main earphone and the auxiliary earphone, the Bluetooth playback device and the Bluetooth earphone. Among them, the main earphone sends the power to the auxiliary earphone, and the auxiliary earphone also sends the power to the main earphone, and the battery power is relatively high. The headset of is used as the main headset and actively initiates a connection with the Bluetooth playback device (such as a mobile phone), and the headset with lower battery power is used as the secondary headset.

In this prior art, first, the main earphone and the secondary earphone send power information to each other, resulting in excessive link transmission data, occupying audio data transmission bandwidth; secondly, although this prior art is not introduced in every standard Bluetooth time slot In terms of the time period to transmit the power information sent by each headset, according to the common practice in the field, the power is transmitted during the time period for transmitting audio data, that is, no audio data is transmitted in the standard Bluetooth time slot. The audio data is transmitted in the next time slot, which results in slow audio data transmission, which may lead to stuttering.

In addition, in order to solve the lag problem, Chinese Patent Publication CN104335642B discloses performing master-slave switching during music pauses or silent periods between songs. Although this solution can solve the lag problem, it depends on the duration of audio playback, that is, the master-slave switch needs to be performed after a period of audio is played, resulting in the untimely master-slave switch, especially during continuous lectures or watching movies. The audio data lasts for a long time, which aggravates the problem of inconsistent power consumption of the two headphones during audio playback.

In summary, how to perform a master-slave switch in time to reduce the inconsistency of the power consumption of the two headphones and reduce the audio stuttering has become a technical problem that needs to be solved urgently.

Summary of the invention

Based on the above situation, the main purpose of the present invention is to provide a method and device for switching between master and slave Bluetooth headsets, Bluetooth headsets, and systems, which not only achieve the balance of the battery power of the master and slave Bluetooth headsets, improve the battery life, but not It causes the audio playback to freeze and improves the user experience.

To this end, according to the first aspect, an embodiment of the present invention discloses a master-slave Bluetooth headset switching method, which is used for a master headset and a slave headset, and the method includes:

Step S901: The main earphone receives multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol; Step S903: The slave earphone monitors multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol; Step S905: The main earphone and the slave earphone Establish a master-slave Bluetooth link to enable the master headset to interact with the slave headset; step S907: the slave headset sends the remaining power of the slave headset to the master headset; step S909: the master headset receives the remaining power of the slave headset sent from the headset; step S911: The master headset judges whether the remaining power of the slave headset and the remaining power of the master headset exceed the preset value; step S913: if the difference between the remaining power of the slave headset and the remaining power of the master headset exceeds the preset value, the master headset Send a master-slave switching request to the slave earphone; step S915: receive the master-slave switching request sent by the master earphone from the earphone; step S917: send a master-slave switching response to the master earphone according to the master-slave switching request; step S919: the master earphone receives the master Slave switching response; and step S921: when the master headset receives the master-slave switching response, the master headset and the slave headset perform the master-slave switching operation when the master-slave switching time comes; among them, steps S907, S915, step S917, and step S921 At least one is completed in the first idle period, the first idle period is the period during which the operation of listening to audio data packets is not performed from the headset, and the first idle period and the period during which at least part of the data of an audio data packet is monitored are in the same standard Bluetooth In the slot; wherein, at least one of step S909, step S911, step S913, step S919, and step S921 is completed in the second idle period, the second idle period is the period during which the main headset does not perform the operation of receiving audio data packets, and The second idle period is in the same standard Bluetooth time slot as at least part of the data period of receiving an audio data packet.

A method for switching between master and slave Bluetooth headsets disclosed in the embodiment of the present invention is to send the remaining power of the slave headset to the master headset during the idle period in the standard Bluetooth time slot of the established master-slave Bluetooth link. After the difference between the remaining power of the headset and the remaining power of the master headset exceeds the preset value, the master-slave switching request is sent to the slave headset, which not only realizes the timely execution of the master-slave switching operation according to the remaining power of the master-slave headset, The battery power of the master-slave Bluetooth headset is balanced, and the battery life is improved; moreover, since the master-slave switching is performed in one or more steps during the period when the operation of receiving and monitoring audio data packets is not performed, on the one hand, it reduces Receiving and monitoring the bandwidth occupation of audio data packets, that is, reducing the bandwidth loss; on the other hand, it will not affect the normal reception and monitoring of multiple audio data packets according to the Bluetooth communication standard protocol by the master and slave headphones, and then, no audio will be caused. The playback freezes, which improves the user experience.

According to a second aspect, an embodiment of the present invention discloses a method for switching between a master and a slave Bluetooth headset, which is used for a slave headset, and is characterized in that the method includes the following steps:

Step S101: Monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the master headset receives multiple audio data packets according to the Bluetooth communication standard protocol; Step S103: Establish a master-slave Bluetooth link with the master headset to communicate with The master headset performs data interaction; step S105: send the remaining power of the slave headset to the master headset; step S107: receive the master-slave switching request sent by the master headset, where the master headset is between the remaining power of the slave headset and the remaining power of the master headset After the difference exceeds the preset value, send a master-slave switching request to the slave headset; step S109: send a master-slave switching response to the master headset according to the master-slave switching request; and step S111: when the master headset 100 receives the master-slave switching response, The master-slave switching operation is performed when the master-slave switching time comes; wherein at least one of steps S105, S107, S109, and S111 is completed in the first idle period, which is the period during which the slave headset does not perform the operation of monitoring audio data packets , And the first idle period is in the same standard Bluetooth time slot as the period when at least part of the data of an audio data packet is monitored.

A method for switching between master and slave Bluetooth headsets disclosed in the embodiment of the present invention is to send the remaining power of the slave headset to the master headset during the idle period in the standard Bluetooth time slot of the established master-slave Bluetooth link. After the difference between the remaining power of the headset and the remaining power of the master headset exceeds the preset value, the master-slave switching request is sent to the slave headset, which not only realizes the timely execution of the master-slave switching operation according to the remaining power of the master-slave headset, The battery power of the master-slave Bluetooth headset is balanced, which improves the battery life; moreover, since the master-slave switching is performed during the period when the monitoring audio data packet operation is not performed, the master-slave switching is performed in one or more steps. Therefore, on the one hand, the monitoring audio is reduced The bandwidth occupancy of the data packet is to reduce the bandwidth loss; on the other hand, it will not affect the normal monitoring of multiple audio data packets from the headset according to the Bluetooth communication standard protocol, and then will not cause the audio playback to freeze, which improves the user Experience.

Optionally, the step S105 includes: after the slave earphone monitors the current audio data packet sent by the audio source device, sending an audio monitor success response packet to the master earphone, wherein the audio monitor successfully answers The package contains the remaining power of the slave headset.

Optionally, an audio monitoring success response packet is sent to the main earphone in the most recent first idle period.

Optionally, the method further includes: when the remaining power of the slave headset is less than the power threshold, sending a Bluetooth communication end request to the master headset during the first idle period; when the slave headset receives the master headset sending After completing the Bluetooth communication response, output an instruction to turn off the power of the slave headset to turn off the power of the slave headset.

According to the third aspect, an embodiment of the present invention discloses a master-slave Bluetooth headset switching method for the master headset. The method includes the following steps:

Step S501: Receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the slave headset monitors multiple audio data packets according to the Bluetooth communication standard protocol; Step S503: Establish a master-slave Bluetooth link with the slave headset to communicate with Perform data interaction from the headset; Step S505: Receive the remaining power of the slave headset sent from the headset; Step S507: Determine whether the difference between the remaining power of the slave headset and the remaining power of the main headset exceeds the preset value; Step S509: If If the remaining power of the slave headset and the remaining power of the master headset exceed the preset value, a master-slave switching request is sent to the slave headset; step S511: receiving a master-slave switching response sent by the slave headset according to the master-slave switching request; and step S513: according to the master The slave handover response executes the master-slave handover operation when the master-slave handover time comes; wherein, at least one of step S505, step S507, step S509, step S511, and step S513 is completed in the second idle period, and the second idle period is the main The period during which the earphone does not perform the operation of receiving audio data packets, and the second idle period is in the same standard Bluetooth time slot as at least part of the data period during which one audio data packet is received.

A method for switching between master and slave Bluetooth headsets disclosed in the embodiment of the present invention is to send the remaining power of the slave headset to the master headset during the idle period in the standard Bluetooth time slot of the established master-slave Bluetooth link. After the difference between the remaining power of the headset and the remaining power of the master headset exceeds the preset value, the master-slave switching request is sent to the slave headset, which not only realizes the timely execution of the master-slave switching operation according to the remaining power of the master-slave headset, The battery power of the master-slave Bluetooth headset is balanced, and the battery life is improved; moreover, since the master-slave switching is performed in one or more steps during the period when the operation of receiving and monitoring audio data packets is not performed, on the one hand, it reduces The bandwidth occupancy of receiving audio data packets is reduced; on the other hand, it will not affect the main earphone to receive multiple audio data packets normally according to the Bluetooth communication standard protocol, and then will not cause the audio playback to freeze and improve Improve the user experience.

Optionally, step S505 includes: receiving an audio monitoring success response packet sent from the headset, where the audio monitoring success response packet indicates that the current audio data packet sent by the audio source device is successfully monitored from the headset; and the audio monitoring success response packet is obtained from the headset The remaining battery power.

Optionally, step S509 includes: if the remaining power of the slave headset and the remaining power of the master headset exceed a preset value, sending a master-slave switching request to the slave headset in the nearest second idle period.

Optionally, the method further includes: receiving an end Bluetooth communication request sent from the earphone in the second idle period; sending a response to the end Bluetooth communication request to the slave earphone; and outputting an instruction to turn off the power of the main earphone according to the end Bluetooth communication request to shut down The power supply of the main headset.

According to the fourth aspect, an embodiment of the present invention discloses a master-slave Bluetooth headset switching device, including:

The monitoring module is used to monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. During this period, the main earphone receives multiple audio data packets according to the Bluetooth communication standard protocol; the first establishment module is used to establish a master-slave with the main earphone Bluetooth link for data interaction with the main earphone; power sending module for sending the remaining power of the slave earphone to the main earphone; request receiving module for receiving the master-slave switching request sent by the main earphone, where the main earphone is in the slave After the difference between the remaining power of the headset and the remaining power of the main headset exceeds the preset value, send a master-slave switching request to the slave headset; the response module is used to send a master-slave switching response to the master headset according to the master-slave switching request; and A switching module for performing a master-slave switching operation when the master-slave switching time comes after the master headset receives the master-slave switching response; wherein, at least one of the power sending module, the request receiving module, the response module, and the first switching module Completed in the first idle period, the first idle period is the period during which the headset does not perform the operation of monitoring audio data packets, and the first idle period and the period during which at least part of the data of an audio data packet is monitored are in the same standard Bluetooth time slot ；

Optionally, it further includes: a data receiving module, configured to receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the multiple audio data packets are monitored from the headset according to the Bluetooth communication standard protocol; a second establishment module, It is used to establish a master-slave Bluetooth link with the slave headset to interact with the slave headset; the power receiving module is used to receive the remaining power of the slave headset sent from the headset; the power judging module is used to determine the remaining power of the slave headset and Whether the difference between the remaining power of the master earphone exceeds the preset value; the request sending module is used to send the master to the slave earphone if the power judgment module determines that the remaining power of the slave earphone and the remaining power of the master earphone exceed the preset value. Slave switching request; response receiving module, used to receive the master-slave switching response sent by the slave headset according to the master-slave switching request; and the second switching module, used to perform the master-slave switching operation when the master-slave switching time comes according to the master-slave switching response Wherein, at least one of the power sending module, the request receiving module, the answering module and the first switching module is completed in the second idle period, the second idle period is the period during which the main headset does not perform the operation of receiving audio data packets, and the second The idle period is in the same standard Bluetooth time slot as at least part of the data period when an audio data packet is received.

According to the fifth aspect, an embodiment of the present invention discloses a Bluetooth headset, including a processor, and the processor is configured to implement any method disclosed in the second aspect.

According to the sixth aspect, an embodiment of the present invention discloses a Bluetooth headset, including a processor, and the processor is configured to implement any method disclosed in the third aspect.

According to a seventh aspect, an embodiment of the present invention discloses a Bluetooth headset system, including: a slave headset for monitoring and playing multiple audio data packets sent by the audio source device; and a master headset for receiving and playing the audio data packets sent by the audio source device. A plurality of audio data packets; among them, the slave headset and the master headset constitute a Bluetooth headset pair; the slave headset is the Bluetooth headset arbitrarily disclosed in the fifth aspect; the master headset is the Bluetooth headset arbitrarily disclosed in the sixth aspect.

According to the eighth aspect, an embodiment of the present invention discloses a Bluetooth audio playback system, including:

The bluetooth earphone system disclosed in any of the above seventh aspect; and the audio source device, which is used to provide a plurality of audio data packets to the bluetooth earphone system.

Optionally, the audio source device may be a mobile phone, a tablet computer, a notebook, an audio-visual player, and other devices that have a Bluetooth communication function and an audio data providing function.

According to the ninth aspect, an embodiment of the present invention discloses a Bluetooth headset chip with an integrated circuit thereon, and the integrated circuit is used to implement any disclosed method of the above-mentioned second aspect; or/and, used to implement any of the above-mentioned third aspect disclosed Methods.

According to the tenth aspect, an embodiment of the present invention discloses a computer-readable storage medium on which a computer program is stored, and the computer program stored in the storage medium is used to be executed to implement any method disclosed in the second aspect; or, To implement the method disclosed in the third aspect above.

Description of the drawings

Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings. In the picture:

Figure 1 is a schematic diagram of a three-terminal system according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a communication time slot according to an embodiment of the present invention;

FIG. 3 is a flowchart of a method for switching between master and slave Bluetooth headsets for slave headsets disclosed in an embodiment of the present invention;

4 is a schematic diagram of a remaining power transmission method disclosed in an embodiment of the present invention;

FIG. 5 is a flowchart of a method for switching between master and slave Bluetooth headsets for master headsets disclosed in an embodiment of the present invention;

6 is a timing diagram of a method for switching between master and slave Bluetooth headsets disclosed in an embodiment of the present invention;

FIG. 7 is a schematic diagram of a three-terminal system data receiving and forwarding process disclosed in an embodiment of the present invention;

FIG. 8 is a schematic diagram of a master-slave switching process disclosed in an embodiment of the present invention;

FIG. 9 is a schematic diagram of a shutdown process of a Bluetooth headset disclosed in an embodiment of the present invention;

Figure 10a is a structural diagram of a master-slave Bluetooth headset switching device for slave headsets disclosed in an embodiment of the present invention;

Fig. 10b is a structural diagram of a master-slave Bluetooth headset switching device for a master headset disclosed in an embodiment of the present invention;

FIG. 11 is a schematic diagram of the structure of a Bluetooth headset system disclosed in an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of a Bluetooth headset chip disclosed in an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions, and advantages of the application more clear, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The embodiments of the present invention will now be described in detail. The embodiments are shown in the drawings, in which the same reference numerals always refer to the same parts. In the following, exemplary embodiments are described to explain the present invention with reference to the figures.

As shown in Figure 1, it is a system diagram of an embodiment of the present invention. The system includes a sound source device (such as a mobile phone), a master Bluetooth headset (such as a master Bluetooth headset 100, hereinafter referred to as a master headset) and a slave Bluetooth headset (such as a slave Bluetooth headset). The headset 200, hereinafter referred to as the slave headset).

A Bluetooth link 1 is established between the mobile phone and the master headset for Bluetooth communication. The mobile phone sends multiple audio data packets to the master headset, and the master headset plays the audio data packets after receiving the audio data packets; another Bluetooth link is established between the master headset and the slave headset Link (that is, the master-slave Bluetooth link), the master headset sends the information of Bluetooth link 1 to the slave headset, so that the slave headset establishes a monitoring Bluetooth link 2 to monitor the audio data packets sent by the mobile phone to the master headset, and the slave headset The earphone can also obtain the audio data packet sent by the mobile phone to the main earphone and play it.

As shown in Figure 2, after the above three links are established, the frequency hopping sequence of the mobile phone, the master headset and the slave headset are the same, and the duration of each frequency point is 625μs (that is, a Bluetooth standard time slot), for example , In the nth standard time slot, the mobile phone sends audio data packet 10, the master earphone receives the audio data packet 10 in the time slot of the standard time slot, and the slave earphone monitors and receives the audio data packet in the time slot 30 of the standard time slot 10; In the next n+1 standard time slot, the master headset can send data to the mobile phone. For example, when the master headset and slave headset successfully receive audio data packets, or the master headset successfully receives audio data packets but the slave headset does not receive audio data packets, The mobile phone sends an ACK for successful audio reception.

During the communication process, the two earphones serving as the master earphone and the slave earphone are interfered by different signals, and the power consumption is also different. Therefore, in some scenarios, the two earphones need to be switched between master and slave frequently to improve communication quality or increase The power balance of the two earphones.

In order to achieve the power balance of the two earphones in a timely and effective manner, based on the system of FIG. 1, this embodiment provides a master-slave Bluetooth earphone switching method for the slave earphone side. Please refer to FIG. 3, which is disclosed in this embodiment. A flow chart of a master-slave Bluetooth headset switching method. The master-slave Bluetooth headset switching method includes the following steps:

Step S101: Monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. Referring to Figure 1, the slave headset 200 monitors multiple audio data packets sent by the audio source device (such as a mobile phone) through the Bluetooth link 2 according to the Bluetooth communication standard protocol; while the slave headset 200 monitors multiple audio data packets, the master headset presses The Bluetooth communication standard protocol receives multiple audio data packets, specifically, multiple audio data packets are received through the Bluetooth link 1. In this embodiment, multiple audio data packets sent by the audio source device (such as a mobile phone) constitute an audio file, that is, one audio file (such as a song) contains multiple audio data packets. As an example of an audio data packet, please refer to FIG. 2. The mobile phone sends an audio data packet 10 to the main earphone, and the slave earphone monitors the audio data packet 10 on the monitoring Bluetooth link 2.

Step S103: Establish a master-slave Bluetooth link with the master headset to perform data interaction with the master headset. Please refer to FIG. 1. In this embodiment, the data interaction between the master headset and the slave headset is implemented through a master-slave Bluetooth link, for example, forwarding audio data packets, sending a master-slave switching request, and so on.

It should be noted that, in the specific implementation process, those skilled in the art are aware of the sequence of execution between step S101 and step S103.

Step S105: Send the remaining power of the slave earphone to the master earphone. In a specific embodiment, the slave headset 200 may collect the remaining power of the battery through its own sampling module or power monitoring module, and send the collected remaining power to the master headset 100 through the master-slave Bluetooth link. It should be noted that, in specific embodiments, the remaining power may be the percentage of the remaining power of the battery to the total battery capacity, or the power itself (for example, xx milliamperes).

Step S107: Receive a master-slave switching request sent by the master headset. In a specific embodiment, the slave headset 200 receives the master-slave switching request sent by the master headset 100 through the master-slave Bluetooth link. In this embodiment, the master headset 100 may also collect the remaining power of the battery through its own sampling module or power monitoring module. The difference between the remaining power of the master headset 100 and the remaining power of the master headset 200 exceeds a preset value. After the value is set, a master-slave switching request is sent to the slave headset, where the preset value can be determined based on experience. It should be noted that the units of the remaining power of the slave and master headsets should be the same. For example, when the remaining power of the slave headset 200 is the percentage of the remaining power of the slave headset 200 to the total battery capacity, the remaining power of the master headset 100 should also be the master headset. The remaining power of 100 is the percentage of the total battery capacity; for another example, when the remaining power of the slave headset 200 is the remaining power of the slave headset 200, the remaining power of the master headset 100 should also be the remaining power of the master headset 100 itself.

Step S109: Send a master-slave switching response to the master headset according to the master-slave switching request. In a specific embodiment, the slave headset 200 sends a master-slave switching response to the master headset 100 through a master-slave Bluetooth link. In an alternative embodiment, the master-slave switching response may be sent to the master headset in the form of an additional package.

Step S111: Perform a master-slave switching operation when the master-slave switching time comes. In this embodiment, after the master headset 100 receives the master-slave switching response, the master-slave switching operation is performed when the master-slave switching time comes. After performing the master-slave switching operation, the master-slave relationship of the two headsets is reversed, that is, the Bluetooth headset of the current master headset becomes the slave headset, and the audio data packet sent by the mobile phone is obtained by monitoring; the current Bluetooth headset is the slave headset It becomes the main headset, and obtains the audio data packet sent by the mobile phone by receiving. Specifically, the two earphones can determine the master-slave switching time according to the protocol; it can also indicate the master-slave switching time when the master-slave switching request is initiated.

In this embodiment, at least one of the above steps S105, S107, S109, and S111 is completed within the first idle period. Specifically, the first idle period is a period during which the slave headset 200 does not perform the operation of monitoring audio data packets, and the first idle period and the period during which at least part of data of an audio data packet is monitored are in the same standard Bluetooth time slot. It should be noted that each of the above steps can be performed in the idle period, or part of the steps can be performed in the idle period; the first idle period can be a period in a standard Bluetooth time slot, or it can be distributed in different Bluetooth time slots Time period. For example, when step S105 is performed, the slave headset 200 may collect the remaining power in the same first idle period and send it to the master headset 100; the slave headset 200 may also collect the remaining power in the current first idle period, and then collect the remaining power in the next first idle period. The idle period is sent to the main headset 100.

In order to facilitate the understanding of those skilled in the art, please refer to Figure 2. In the Bluetooth protocol, each standard time slot can be divided into two parts. The first part of the time period t1 (which can be called the useful time period) is used to send and receive data, and the latter part of the time period t2 (which can be called It is the idle period) is used to make the Bluetooth device hop to the standard time slot corresponding to the next frequency point in preparation. However, in the present invention, by increasing the processing speed of the hardware, the time required for the Bluetooth device to hop from one standard time slot to the next standard time slot can be made shorter. Therefore, the master earphone and the slave earphone can be in the idle period t2. Sending and receiving data packets or other operations, for example, the slave headset can send additional packets during the idle period or obtain the remaining power of its own. As shown in FIG. 2, the first idle period t2 and the period when at least part of the audio data (data in the audio data packet 10) is monitored are in the same standard Bluetooth time slot (the nth time slot).

In an alternative embodiment, when step S105 is performed, the remaining power from the headset may be included in the response packet and sent to the main headset, so that the sending and receiving operations can be reduced and the bandwidth utilization rate can be improved. Specifically, after the current audio data packet sent by the audio source device is monitored from the earphone 200, an audio monitoring success response packet is sent to the master earphone 100, where the audio monitoring success response packet contains the remaining power of the slave earphone. Please refer to Figure 2, the slave earphone 200 monitors the audio data 10 on the monitoring Bluetooth link 2. If the audio data 10 is successfully received, the audio monitoring success response is sent to the main earphone 100 during the idle period t2 in the standard Bluetooth time slot The package 31 (or called the additional package 31), wherein the monitoring success response package 31 contains the remaining power of the headphone 200 itself.

In the specific implementation process, please refer to Figure 4, which illustrates the interaction process of multiple monitor success response packets (additional package 1-N) of the master and slave earphones: the first monitor success response package (see Figure 4, additional package 1) As an example, please refer to Figures 2 and 4 to collect its own remaining power from the headset 200, and then use the remaining power as the content of the monitoring success response packet 31 (the monitoring success response packet may also include other content) and send it to the main headset 200. After the master earphone 200 receives the monitoring success response packet (as indicated by mark 21 in FIG. 2), the master earphone disassembles the monitoring success response packet 21 (additional package 1 in FIG. 4) to obtain the remaining power of the slave earphone 200.

In this embodiment, the remaining power is sent through the first idle period t2, which can reduce the occupation of useful bandwidth, thereby reducing the waste of bandwidth resources. Further, by monitoring the success response packet 31 to include the remaining power of the slave headset, the occupation of bandwidth resources can be further reduced.

In an optional embodiment, in order to further improve the timeliness of the remaining power transmission, the audio monitoring success response packet may be sent to the master earphone 100 during the first most recent idle period, especially when the remaining power of the slave earphone 200 is difficult to maintain. 200 scenes of normal work.

In an optional embodiment, when the power of the slave headset 200 is insufficient to maintain the normal operation of the slave headset 200 and needs to be shut down, the method for switching between the master and slave Bluetooth headsets further includes: when the remaining power of the slave headset 200 is less than the power threshold, in the first A request to end the Bluetooth communication is sent to the master headset 100 during an idle period; when the slave headset 200 receives the Bluetooth communication termination response sent by the master headset 100, an instruction to turn off the power of the slave headset is output to turn off the power of the slave headset.

This embodiment also discloses a master-slave Bluetooth headset switching method, which is used for the master headset 100. Please refer to FIG. 5, which is a flowchart of a master-slave Bluetooth headset switching method disclosed in this embodiment. Including the following steps:

Step S501: Receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. During this period, the headset monitors multiple audio data packets according to the Bluetooth communication standard protocol. Specifically, please refer to the description of step S101.

Step S503: Establish a master-slave Bluetooth link with the slave headset to perform data interaction with the slave headset. Specifically, please refer to the description of step S103.

It should be noted that in the specific implementation process, those skilled in the art are aware of the sequence of execution between step S501 and step S503.

Step S505: Receive the remaining power of the slave earphone sent from the earphone. In a specific embodiment, the remaining power of the slave headset can be received through the master-slave Bluetooth link. For details, please refer to the description of step S105.

Step S507: Determine whether the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value. In a specific embodiment, the master headset 100 can also collect the remaining power of the battery through its own sampling module or power monitoring module; after receiving the remaining power of the slave headset, it can compare the remaining power of the headset with the remaining power of the master headset. Make a difference to obtain the difference in the remaining power; determine whether the difference exceeds the preset value, if the difference exceeds the preset value, it indicates that the remaining power of the slave headset is too surplus relative to the remaining power of the master headset. At this time, the master and the slave If the remaining power of the earphone is not balanced, step S509 is executed. If the difference does not exceed the preset value, it indicates that the remaining power of the two earphones is relatively balanced, and the master-slave switch does not need to be performed. At this time, the remaining power sent from the earphone 100 next time can be received. In a specific embodiment, the preset value can be determined based on experience. For example, when the remaining power is the percentage of the remaining power of the battery to the total battery capacity, the preset value can be set, for example, 5%-10%. It should be noted that The above numerical values are only exemplary descriptions, and the specific numerical values cannot be regarded as a limitation to the solution of the application.

Step S509: Send a master-slave switching request to the slave headset. In a specific embodiment, the master headset 100 sends a master-slave switching request to the slave headset 200 via a master-slave Bluetooth link.

In a preferred embodiment, in order to further improve the timeliness of master-slave switching, if the remaining power of the slave headset and the remaining power of the master headset exceed a preset value, the master-slave can be sent to the slave headset 200 during the second most recent idle period. The switching request, especially when the difference is too large, indicates that there is a serious power imbalance between the two earphones, and the master-slave switching needs to be performed in a timely manner.

Step S511: Receive the master-slave switching response sent by the slave headset according to the master-slave switching request. In a specific embodiment, the master headset 100 receives the master-slave switching response sent by the slave headset 200 according to the master-slave switching request through the master-slave Bluetooth link. In an alternative embodiment, the master-slave switch response can be obtained through an additional package.

Step S513: Perform a master-slave switching operation when the master-slave switching time comes according to the master-slave switching response. Specifically, please refer to the description of step S511.

In this embodiment, at least one of the above-mentioned step S505, step S507, step S509, step S511, and step S513 is completed within the second idle period. Specifically, the second idle period is a period during which the main headset 100 does not perform the operation of receiving audio data packets, and the second idle period is in the same standard Bluetooth time slot as at least part of the data period during which one audio data packet is received. It should be noted that each of the above steps can be performed in the idle period, or part of the steps can be performed in the idle period; the second idle period can be a period in a standard Bluetooth time slot, or it can be distributed in different standard Bluetooth time slots Time period.

It should be noted that in the process of performing step S509, the two earphones can determine the master-slave switching time according to the protocol; or when the master-slave switching request is initiated, the master-slave switching time can be indicated. When the master-slave switching request is used to indicate the master-slave switching time, the time position of the second idle period that carries the master-slave switching request can be used to indicate which time slot is used for the master-slave switching, that is, the second idle period is divided into more times. In a small time period, the master-slave switching request is sent in the small time period. The agreed formula can indicate the corresponding standard time slot for master-slave switching, thereby reducing information transmission and improving bandwidth utilization rate.

It should be noted that for the understanding of the second idle period, please refer to the example description of the first idle period. The principle is similar; the difference is that the useful period and the mobile phone interact in a different way, with the slave earphone for monitoring and the main earphone for receiving.

In an alternative embodiment, when step S505 is performed, the remaining power of the slave earphone can be obtained by disassembling the listening success response packet of the slave earphone, so that the sending and receiving operations can be reduced and the bandwidth utilization rate can be improved. Specifically, step S505 includes: receiving an audio monitoring success response packet sent from the headset 200, where the audio monitoring success response packet indicates that the current audio data packet sent by the audio source device is successfully monitored from the headset 200; The remaining battery power of the headset. Specifically, please refer to the description of FIG. 2 and FIG. 4 in the above embodiment. After disassembling the remaining power of the slave headset, it can be compared with the remaining power of the master headset collected by the master headset 100 to determine whether it is greater than the preset value. .

In an optional embodiment, when the power of the slave headset 200 is insufficient to maintain the normal operation of the slave headset 200 and needs to be shut down, the master-slave Bluetooth headset switching method further includes: receiving the end Bluetooth communication sent from the headset 200 during the second idle period Request; send and receive a response to the end of the Bluetooth communication request to the slave earphone 200; output an instruction to turn off the power of the main earphone 100 according to the end of the Bluetooth communication request to turn off the power of the main earphone 100.

This embodiment discloses a master-slave Bluetooth headset switching method, by receiving the remaining power of the slave headset sent by the slave headset during the idle period in the standard Bluetooth time slot of the established master-slave Bluetooth link, the master headset is After the difference between the remaining power of the headset and the remaining power of the master headset exceeds the preset value, the master-slave switching request is sent to the slave headset, which not only realizes the timely execution of the master-slave switching operation according to the remaining power of the master-slave headset, The battery power of the master-slave Bluetooth headset is balanced, which improves the battery life; moreover, because the master-slave switching is performed in one or more steps during the period when the operation of receiving audio data packets is not performed, on the one hand, the received audio is reduced The bandwidth occupancy of the data packet is to reduce the bandwidth loss; on the other hand, it will not affect the main headset to receive multiple audio data packets normally according to the Bluetooth communication standard protocol, and then will not cause the audio playback to freeze, which improves the user Experience.

This embodiment also discloses a master-slave Bluetooth headset switching method. Please refer to FIG. 6, which is a timing diagram of a master-slave Bluetooth headset switching method disclosed in this embodiment. The master-slave Bluetooth headset switching method includes the following steps:

Step S901: The main earphone 100 receives multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S903: monitor multiple audio data packets sent by the audio source device from the headset 200 according to the Bluetooth communication standard protocol. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S905: the master headset 100 and the slave headset 200 establish a master-slave Bluetooth link, so that the master headset 100 and the slave headset 200 perform data interaction. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S907: the slave earphone 200 sends the remaining power of the slave earphone to the master earphone 100. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S909: the master earphone 100 receives the remaining power of the slave earphone sent from the earphone 200. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S911: The master headset 100 determines whether the remaining power of the slave headset and the remaining power of the master headset exceed a preset value. If the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds the preset value, step S913 is executed. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S913: the master headset 100 sends a master-slave switching request to the slave headset 200. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S915: Receive the master-slave switching request sent by the master headset 100 from the headset 200. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S917: The slave headset 200 sends a master-slave switching response to the master headset 100 according to the master-slave switching request. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S919: the master headset 100 receives the master-slave switching response. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

Step S921: the master headset 100 and the slave headset 200 perform a master-slave switching operation when the master-slave switching time comes. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

In the above steps, at least one of steps S907, S915, step S917, and step S921 is completed within the first idle period. The first idle period is the period during which the slave headset 200 does not perform the operation of monitoring audio data packets, and the first idle period is equal to The period during which at least part of the data of an audio data packet is monitored is in the same standard Bluetooth time slot; in the above steps, at least one of step S909, step S911, step S913, step S919, and step S921 is completed in the second idle period The second idle period is a period during which the main headset 100 does not perform the operation of receiving an audio data packet, and the second idle period and at least part of the data period during which an audio data packet is received are in the same standard Bluetooth time slot. Specifically, please refer to the description of the foregoing embodiment, which will not be repeated here.

For ease of understanding by those skilled in the art, please refer to FIG. 7, which is a schematic diagram of the data receiving and forwarding process of a system composed of a mobile phone, a master headset, and a slave headset disclosed in this embodiment. It can be seen from FIG. After the data packet (such as data packet 1), an additional packet will be sent to the main headset, indicating that the data packet 1 is monitored from the headset; the main headset receives the data packet sent by the mobile phone (such as data packet 1 and data packet 2), which means the transmission is successfully received Acknowledge ACK to the mobile phone (for example, as indicated by marker 22 in Figure 2). In the agreed time slot, the master headset communicates with the slave headset. The master headset forwards the data packet 2 that is not received from the headset to the slave headset. After receiving the data packet 2 from the headset, it sends a monitor success response ACK to the master headset (for example, 2). After receiving the ACK, the master headset sends a forwarding completion message to the slave headset, and the slave headset sends a response ACK to the master headset again. After receiving the ACK, the master headset ends the communication between the master and slave headsets. Communication, the main headset communicates with the mobile phone again to continue receiving audio data.

In the master-slave switching method of this embodiment, based on the above-mentioned system data flow, the additional package sent from the headset to the master headset contains the remaining power of the slave headset itself; after the master headset receives the additional package, the additional package is parsed to obtain the slave headset The master headset also obtains the remaining power of its own master headset; the master headset compares the remaining power of the slave headset with the remaining power of the master headset: if the power of the slave headset is more sufficient, the master headset sends a master-slave switching request to the slave headset; If the power of the master headset is more sufficient, the master headset will not send a master-slave switching request.

If the master headset decides to send a master-slave switching request, the master headset sends a master-slave switching request to the slave headset (for example, as shown by mark 23 in FIG. 2);

As shown in Figure 8, after receiving the master-slave switching request, the slave headset sends an approval request response to the master headset, and the slave headset marks itself as the master headset and keeps the monitoring state. For example, after the slave headset receives the master-slave switching request during the idle period of the standard time slot, it sends an approval request response to the master headset, and the slave headset marks itself as the master headset and keeps the monitoring state;

After the master headset receives the response to the consent request sent from the headset, it marks itself as the slave headset and switches to the monitoring state, and then sends a role switch command (SWITCH START) to the slave headset;

After receiving the switching command from the headset, the ACK reply is returned to the main headset, and a Bluetooth communication connection is established with the mobile phone. Since then, the slave headset becomes the main headset.

Through the above solution, by constantly switching the master and slave roles of the master headset and the slave headset, the remaining power of the master headset and the slave headset is as balanced as possible, until the remaining power of any headset reaches the power threshold, and the master headset needs to be turned off at this time. From the headset, and the associated Bluetooth link.

As shown in Figure 9, when the remaining power of the slave headset first reaches the power threshold, the following steps are included:

Send the DETACH command from the headset to the main headset;

After receiving the command to disconnect the Bluetooth connection, the main headset sends a request to close the baseband link to the mobile phone;

After receiving the request to close the baseband link, the mobile phone sends a closed baseband link response to the main headset, and then closes the baseband link;

After the master earphone receives the response of the closed baseband link, it sends the message that the baseband link has been closed to the slave earphone;

After receiving the information that the baseband link is closed, the slave headset sends an acknowledgement (ACK) to the master headset, then disconnects the Bluetooth link between the master and slave headsets, and then turns off the power of the slave headset;

After the main headset receives the response, it sends a disconnect message to the mobile phone, and then turns off the power of the main headset.

When the remaining power of the master headset reaches the power threshold, the processing procedure for the slave headset to reach the power threshold can be referred to.

This embodiment also discloses a master-slave Bluetooth headset switching device for slave headsets. Please refer to FIG. 10a, which is a schematic structural diagram of a master-slave Bluetooth headset switching device from the headset side disclosed in this embodiment. The device includes: monitor The module 101, the first establishing module 102, the power sending module 103, the request receiving module 104, the answering module 105 and the first switching module 106, wherein:

The monitoring module 101 is used to monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. During this period, the main headset receives multiple audio data packets according to the Bluetooth communication standard protocol; the first establishing module 102 is used to establish a master-slave with the main headset Bluetooth link for data interaction with the master headset; the power sending module 103 is used to send the remaining power of the slave headset to the master headset 100; the request receiving module 104 is used to receive the master-slave switching request sent by the master headset, where the master headset is in After the difference between the remaining power of the slave headset and the remaining power of the master headset exceeds a preset value, send a master-slave switching request to the slave headset; the response module 105 is configured to send a master-slave switching response to the master headset 100 according to the master-slave switching request; And the first switching module 106 is configured to perform the master-slave switching operation when the master-slave switching time comes after the master headset 100 receives the master-slave switching response;

Wherein, at least one of the power sending module, the request receiving module, the answering module, and the first switching module is completed in the first idle period, the first idle period is the period during which the slave earphone 200 does not perform the operation of monitoring audio data packets, and the first idle period The idle period and the period when at least part of the data of an audio data packet is monitored are in the same standard Bluetooth time slot.

This embodiment also discloses a master-slave Bluetooth headset switching device for the master headset. Please refer to FIG. 10b, which is a schematic structural diagram of a master-slave Bluetooth headset switching device disclosed in this embodiment. The device includes: data The receiving module 107, the second establishing module 108, the power receiving module 109, the power determining module 110, the request sending module 111, the response receiving module 112, and the second switching module 113, wherein:

The data receiving module 107 is used to receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol. During the period, the slave earphone monitors multiple audio data packets according to the Bluetooth communication standard protocol; the second establishing module 108 is used to establish a master with the slave earphone. The slave Bluetooth link is used to interact with the slave headset; the power receiving module 109 is used to receive the remaining power of the slave headset sent from the headset 200; the power determining module 110 is used to determine the remaining power of the slave headset and the remaining power of the master headset. Whether the difference between the two exceeds a preset value; the request sending module 111 is configured to send a master-slave switching request to the slave headset 200 if the power judgment module determines that the remaining power of the slave headset and the remaining power of the master headset exceed the preset value; The receiving module 112 is configured to receive the master-slave switching response sent by the slave headset 200 according to the master-slave switching request; and the second switching module 113 is configured to perform the master-slave switching operation when the master-slave switching time comes according to the master-slave switching response;

Wherein, at least one of the power sending module, the request receiving module, the power judgment module, the response module, and the first switching module is completed in the second idle period, and the second idle period is the period during which the main headset 100 does not perform the operation of receiving audio data packets , And the second idle period is in the same standard Bluetooth time slot as at least part of the data period of receiving an audio data packet.

This embodiment also discloses a Bluetooth headset, including a processor, and the processor is configured to implement the method for slave headset disclosed in any of the foregoing embodiments.

This embodiment also discloses a Bluetooth headset, including a processor, and the processor is configured to implement the method for the main headset disclosed in any of the foregoing embodiments.

It should be noted that in the specific implementation process, the processor of each Bluetooth headset is used to implement the method disclosed in any of the above-mentioned embodiments for the master headset and the slave headset in a time-sharing manner.

This embodiment also discloses a Bluetooth headset system. Please refer to FIG. 11, which is a schematic structural diagram of a Bluetooth headset system disclosed in this embodiment. The Bluetooth headset system includes: a slave headset and a master headset, wherein:

The slave earphone is used to monitor and play multiple audio data packets sent by the audio source device; the main earphone is used to receive and play multiple audio data packets sent by the audio source device. Among them, the slave headset and the master headset constitute a Bluetooth headset pair; the slave headset is a Bluetooth headset disclosed in any of the above embodiments for implementing the slave headset method; the master headset is a Bluetooth headset disclosed in any of the above embodiments for implementing the master headset method Bluetooth headset.

It should be noted that in the specific implementation process, the master-slave relationship between the master headset and the slave headset can be interchanged.

This embodiment also discloses a Bluetooth audio playback system, including: an audio source device and the Bluetooth headset system disclosed in the above embodiments, wherein the audio source device is used to provide a plurality of audio data packets to the Bluetooth headset system. In an alternative embodiment, the audio source device may be a device with a Bluetooth communication function and audio data providing function, such as a mobile phone, a tablet computer, a notebook, a video player, and the like.

This embodiment also discloses a computer-readable storage medium on which a computer program is stored. The computer program stored in the storage medium is used to be executed to implement the method for slave earphones disclosed in any of the above-mentioned embodiments, or to implement The method for the main earphone disclosed in any of the above embodiments.

This embodiment also discloses a Bluetooth headset chip with an integrated circuit on it. The integrated circuit is used to implement the method for slave headset disclosed in any of the above embodiments, or/and, to implement the method for slave headset disclosed in any of the above embodiments. The main headset method. Specifically, please refer to Figure 12, which is a schematic structural diagram of a Bluetooth headset chip disclosed in this embodiment. The integrated circuit on it includes a processor 121, a wireless communication module 122, and a power supply module 123. Among them:

The processor 121 may be a micro-control chip with certain data processing capabilities, such as a DSP, a single-chip microcomputer, etc.; the processor 121 is used to execute a program to implement the method disclosed in any of the above embodiments, and it may be the method of the slave headset or the master headset. method;

The wireless communication module 122 may be a module capable of implementing Bluetooth communication. The wireless communication module 122 is used for communication between master and slave headsets, and for communication between Bluetooth headsets and mobile phones;

The power module 123 is used to provide and/or manage power to each functional circuit. It should be noted that in the specific implementation process, the power module 123 may be configured separately for the Bluetooth headset chip or shared with other chips;

Based on the content disclosed in the foregoing embodiments, those skilled in the art should be aware of appropriate deletion or integrated multiplexing of the integrated circuit modules in the foregoing Bluetooth headset chip. For example, in some embodiments, the integrated circuit in the Bluetooth headset chip may also include an ADC module 124 for power collection; for another example, it may also include a comparator module 125 for comparison of two power levels. Of course, In some embodiments, the function of the comparator module 125 can also be implemented by the processor 121, and in this case, the comparator module 125 can be omitted.

It should be understood that the above-mentioned embodiments are only exemplary and not restrictive. Without departing from the basic principles of the present invention, those skilled in the art can make various obvious or equivalent details regarding the above-mentioned details. Modifications or replacements will be included in the scope of the claims of the present invention.

Claims

A method for switching between master and slave Bluetooth headsets, used for a master headset and a slave headset, characterized in that the method includes the following steps:

Step S901: The main earphone (100) receives multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol;

Step S903: monitor multiple audio data packets sent by the audio source device from the headset (200) according to the Bluetooth communication standard protocol;

Step S905: The master headset (100) and the slave headset (200) establish a master-slave Bluetooth link, so that the master headset (100) and the slave headset (200) perform data interaction;

Step S907: The slave earphone (200) sends the remaining power of the slave earphone (100) to the master earphone (100);

Step S909: The master earphone (100) receives the remaining power of the slave earphone sent by the slave earphone (200);

Step S911: The master headset (100) determines whether the remaining power of the slave headset and the remaining power of the master headset exceed a preset value;

Step S913: If the difference between the remaining power of the slave headset and the remaining power of the master headset exceeds a preset value, the master headset (100) sends a master-slave switching request to the slave headset (200) ；

Step S915: The slave headset (200) receives the master-slave switching request sent by the master headset (100);

Step S917: The slave headset (200) sends a master-slave switching response to the master headset (100) according to the master-slave switching request;

Step S919: The master headset (100) receives the master-slave switching response; and

Step S921: After the master headset (100) receives the master-slave switching response, the master headset (100) and the slave headset (200) perform a master-slave switching operation when the master-slave switching time comes;

Wherein, at least one of the steps S907, S915, step S917, and step S921 is completed in a first idle period, and the first idle period is when the slave headset (200) has not performed the operation of monitoring the audio data packet Time period, and the first idle time period and the time period during which at least part of the data of an audio data packet is monitored are in the same standard Bluetooth time slot;

Wherein, at least one of step S909, step S911, step S913, step S919, and step S921 is completed in a second idle period, and the second idle period is when the main headset (100) has not performed receiving the The period of audio data packet operation, and the second idle period is in the same standard Bluetooth time slot as at least part of the data period of receiving an audio data packet.
A method for switching between master and slave Bluetooth headsets, used for slave headsets, characterized in that the method includes the following steps:

Step S101: Monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the main earphone receives the multiple audio data packets according to the Bluetooth communication standard protocol;

Step S103: Establish a master-slave Bluetooth link with the master headset to perform data interaction with the master headset;

Step S105: Send the remaining power of the slave earphone to the master earphone (100);

Step S107: Receive a master-slave switching request sent by the master earphone, where the master earphone sends a message to the master earphone after the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value. Send a master-slave switching request from the headset;

Step S109: Send a master-slave switching response to the master headset (100) according to the master-slave switching request; and

Step S111: After the master headset (100) receives the master-slave switching response, execute the master-slave switching operation when the master-slave switching time comes;

Wherein, at least one of the steps S105, S107, S109, and S111 is completed in a first idle period, and the first idle period is a period during which the slave headset (200) does not perform the operation of monitoring the audio data packet, In addition, the first idle period and the period during which at least part of the data of an audio data packet is monitored are in the same standard Bluetooth time slot.
The method for switching between master and slave Bluetooth headsets according to claim 2, wherein the step S105 comprises:

After the slave earphone (200) monitors the current audio data packet sent by the audio source device, it sends an audio monitoring success response packet to the master earphone (100), wherein the audio monitoring success response packet contains all Describe the remaining power of the headset.
The method for switching between master and slave Bluetooth headsets according to claim 3, wherein:

Further, in order to improve timeliness, an audio monitoring success response packet is sent to the main earphone (100) in the most recent first idle period.
The method for switching between master and slave Bluetooth headsets according to any one of claims 2-4, further comprising:

After the remaining power of the slave headset (200) is less than the power threshold, send a request to end the Bluetooth communication to the master headset (100) in the first idle period;

After the slave earphone (200) receives the end Bluetooth communication response sent by the master earphone (100), it outputs an instruction to turn off the power of the slave earphone to turn off the power of the slave earphone.
A method for switching a master-slave Bluetooth headset for a master headset (100), characterized in that the method includes the following steps:

Step S501: Receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which time the multiple audio data packets are monitored from the headset according to the Bluetooth communication standard protocol;

Step S503: Establish a master-slave Bluetooth link with the slave headset to perform data interaction with the slave headset;

Step S505: receiving the remaining power of the slave earphone (200) sent by the slave earphone (200);

Step S507: Determine whether the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value;

Step S509: If the remaining power of the slave headset and the remaining power of the master headset exceed a preset value, send a master-slave switching request to the slave headset (200);

Step S511: receiving the master-slave switching response sent by the slave headset (200) according to the master-slave switching request; and

Step S513: Perform a master-slave switching operation when the master-slave switching time comes according to the master-slave switching response;

Wherein, at least one of step S505, step S507, step S509, step S511, and step S513 is completed in a second idle period, and the second idle period is when the main headset (100) is not performing receiving the audio The period of data packet operation, and the second idle period is in the same standard Bluetooth time slot as at least part of the data period of receiving an audio data packet.
The method for switching between master and slave Bluetooth headsets according to claim 6, wherein the step S505 comprises:

Receiving the audio monitoring success response packet sent by the slave earphone (200), where the audio monitoring success response packet indicates that the slave earphone (200) has successfully monitored the current audio data packet sent by the audio source device;

Obtain the remaining power of the slave earphone from the audio monitoring success response packet.
The method for switching between master and slave Bluetooth headsets according to claim 6 or 7, wherein the step S509 comprises:

If the remaining power of the slave headset and the remaining power of the master headset exceed a preset value, sending a master-slave switching request to the slave headset (200) in the most recent second idle period.
The method for switching between master and slave Bluetooth headsets according to any one of claims 6-8, further comprising:

Receiving the end Bluetooth communication request sent by the slave headset (200) in the second idle period;

Sending to the slave headset (200) a response to the end of the Bluetooth communication request;

Outputting an instruction to turn off the power of the main headset (100) according to the end of the Bluetooth communication request to turn off the power of the main headset (100).
A master-slave Bluetooth headset switching device is characterized in that it comprises:

The monitoring module is used to monitor multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the main earphone receives the multiple audio data packets according to the Bluetooth communication standard protocol;

The first establishment module is configured to establish a master-slave Bluetooth link with the master headset to perform data interaction with the master headset;

A power sending module, configured to send the remaining power of the slave earphone to the master earphone (100);

The request receiving module is configured to receive a master-slave switching request sent by the master earphone, wherein the master earphone is after the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value Sending a master-slave switching request to the slave headset;

A response module, configured to send a master-slave switching response to the master headset (100) according to the master-slave switching request; and

The first switching module is configured to perform a master-slave switching operation when the master-slave switching time comes after the master headset (100) receives the master-slave switching response;

Wherein, at least one of the power sending module, the request receiving module, the response module, and the first switching module is completed in a first idle period, and the first idle period is the slave headset (200 ) The period during which the operation of monitoring the audio data packet is not performed, and the first idle period and the period during which at least part of the data of an audio data packet is monitored are in the same standard Bluetooth time slot.
The device for switching master-slave Bluetooth headsets according to claim 10, wherein the device further comprises:

The data receiving module is configured to receive multiple audio data packets sent by the audio source device according to the Bluetooth communication standard protocol, during which the multiple audio data packets are monitored from the earphone according to the Bluetooth communication standard protocol;

The second establishment module is used to establish a master-slave Bluetooth link with the slave headset to perform data interaction with the slave headset;

A power receiving module, configured to receive the remaining power of the slave earphone (200) sent by the slave earphone (200);

A power determination module, configured to determine whether the difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value;

A request sending module, configured to send a master-slave switching request to the slave earphone (200) if the power judgment module determines that the remaining power of the slave earphone and the remaining power of the master earphone exceed a preset value;

A response receiving module, configured to receive the master-slave switching response sent by the slave headset (200) according to the master-slave switching request; and

The second switching module is configured to perform a master-slave switching operation when the master-slave switching time comes according to the master-slave switching response;

Wherein, at least one of the power sending module, the request receiving module, the power judgment module, the response module, and the first switching module is completed in a second idle period, and the second idle period is the The main earphone (100) does not perform the period during which the audio data packet is received, and the second idle period is in the same standard Bluetooth time slot as at least part of the data period during which one audio data packet is received.
A Bluetooth headset comprising a processor, wherein the processor is used to implement the method according to any one of claims 2-5.
A Bluetooth headset comprising a processor, wherein the processor is used to implement the method according to any one of claims 6-9.
A Bluetooth headset system is characterized in that it includes:

From the earphone, it is used to monitor and play multiple audio data packets sent by the audio source device; and

The main earphone is used to receive and play multiple audio data packets sent by the audio source device;

Wherein, the slave headset and the master headset constitute a Bluetooth headset pair; the slave headset is the Bluetooth headset according to claim 12; the master headset is the Bluetooth headset according to claim 13.
A Bluetooth audio playback system is characterized in that it comprises:

The Bluetooth headset system according to claim 14; and

The audio source device is used to provide multiple audio data packets to the Bluetooth headset system.

In an alternative embodiment, the audio source device may be a mobile phone, a tablet computer, a notebook, an audio-visual player, and other devices that have a Bluetooth communication function and an audio data providing function.
A Bluetooth headset chip with an integrated circuit thereon, wherein the integrated circuit is used to implement the method according to any one of claims 2-5; or/and, used to implement the method according to claims 6-9 Any one of the methods.
A computer-readable storage medium with a computer program stored thereon, wherein the computer program stored in the storage medium is used to be executed to implement the method according to any one of claims 2-5; or, to implement The method according to any one of claims 6-9.