CN111436041A

CN111436041A - Method and device for switching master and slave Bluetooth earphones, Bluetooth earphones and system

Info

Publication number: CN111436041A
Application number: CN201911051730.3A
Authority: CN
Inventors: 罗广君; 邓玉林
Original assignee: Zhuhai Jieli Technology Co Ltd
Current assignee: Zhuhai Jieli Technology Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-21
Anticipated expiration: 2039-10-31
Also published as: WO2021082875A1; CN111436041B

Abstract

The invention relates to a method and a device for switching master and slave Bluetooth earphones, a Bluetooth earphone and a system, wherein the method comprises the following steps: the slave earphone sends the remaining power of the slave earphone to the master earphone; the master earphone judges whether the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceed preset values or not; if the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value, the master earphone sends a master-slave switching request to the slave earphone; the master earphone and the slave earphone execute master-slave switching operation when master-slave switching time arrives; the method comprises the steps of receiving and monitoring audio data packets, wherein at least one idle period in each step executed by two ends is completed, the idle period is a period without receiving and monitoring the audio data packets, and the idle period and at least part of data of one audio data packet are in the same standard Bluetooth time slot. On one hand, the bandwidth occupation is reduced, namely, the bandwidth loss is reduced; on the other hand, normal receiving and monitoring of a plurality of audio data packets cannot be influenced, and then, the audio playing can not be blocked.

Description

Method and device for switching master and slave Bluetooth earphones, Bluetooth earphones and system

Technical Field

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

Background

Along with the wide popularization of bluetooth and the improvement of people's standard of living, the popularity of bluetooth to the ear is more and more high, at present, in the use of bluetooth to the ear, because the consumption inconsistent that master earphone and follow earphone produced leads to the power consumptive speed of master earphone to be higher than from the power consumptive speed of earphone, uses after two earphones are full of the electricity, and master earphone often is earlier than from the earphone outage, leads to user experience poor. Meanwhile, in most cases, when the master earphone is in short of power, the user often charges the master earphone and the slave earphone at the same time, which reduces the service life of the slave earphone which is not in short of power.

At present, in the process of playing audio data by a bluetooth headset, when a master headset and a slave headset perform master-slave switching operation according to electric quantity, the master headset and the slave headset often need to stop receiving the audio data, that is, the audio data sent by a mobile phone is not received in a standard bluetooth timeslot, and then master-slave switching operation is performed, which easily causes the audio playing to be blocked, and the user experience is very poor.

Chinese patent publication CN109275069A discloses a method for intelligently switching between a main earphone and an auxiliary earphone, a bluetooth playing device and a bluetooth earphone, wherein the main earphone sends power to the auxiliary earphone, the auxiliary earphone also sends power to the main earphone, the earphone with higher battery power serves as the main earphone and actively initiates a connection with the bluetooth playing device (e.g. a mobile phone), and the earphone with lower battery power serves as the auxiliary earphone.

In the prior art, firstly, the main earphone and the auxiliary earphone mutually transmit power information, so that link transmission data is excessive and audio data transmission bandwidth is occupied; secondly, although this prior art does not describe in what time period in each standard bluetooth slot the power information sent by each headset is transmitted, according to the common practice in the art, the power is transmitted in the time period for transmitting audio data, i.e. no audio data is transmitted in this standard bluetooth slot, and audio data is transmitted in the next slot, thereby resulting in slow audio data transmission and possibly jamming.

In addition, to solve the katton problem, chinese patent publication CN104335642B discloses that master-slave switching is performed during music pauses or silent periods between songs. Although the solution can solve the problem of the pause, it depends on the duration of the audio playing, i.e. the master-slave switching needs to be performed after a segment of audio playing, which results in the master-slave switching being not timely, especially during continuous listening to lessons or watching movies, the audio data is long in duration, so that the problem of inconsistent power consumption of the two earphones during the audio playing is aggravated.

In conclusion, how to perform the master-slave switching in time to reduce the inconsistency of the power consumption of the two earphones and reduce the audio jamming phenomenon becomes a technical problem to be solved urgently.

Disclosure of Invention

Based on the above current situation, the main objective of the present invention is to provide a method and an apparatus for switching between a master bluetooth headset and a slave bluetooth headset, a bluetooth headset, and a system, which not only achieve the purpose of equalizing the battery power of the master bluetooth headset and the slave bluetooth headset, and improve the service life of the battery, but also do not cause the audio playing to be jammed, and improve the user experience.

Therefore, according to a 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 includes:

step S901: the main earphone receives a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol; step S903: monitoring a plurality of audio data packets sent by sound source equipment from an earphone according to a Bluetooth communication standard protocol; step S905: the master earphone and the slave earphone establish a master-slave Bluetooth link so that the master earphone and the slave earphone perform data interaction; step S907: the slave earphone sends the remaining power of the slave earphone to the master earphone; step S909: the master earphone receives the residual capacity of the slave earphone sent by the slave earphone; step S911: the master earphone judges whether the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceed preset values or not; step S913: if the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value, the master earphone sends a master-slave switching request to the slave earphone; step S915: receiving a master-slave switching request sent by a master earphone from the slave earphone; step S917: the slave earphone sends 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 earphone receives the master-slave switching response, the master earphone and the slave earphone execute master-slave switching operation when master-slave switching time arrives; wherein, at least one of the steps S907, S915, S917 and S921 is completed in a first idle period, the first idle period is a period in which the slave earphone does not perform an operation of listening to an audio data packet, and the first idle period and a period in which at least part of data of one audio data packet is listened to are in the same standard bluetooth timeslot; wherein at least one of the steps S909, S911, S913, S919, and S921 is completed in a second idle period, the second idle period is a period in which the master earphone does not perform an operation of receiving an audio data packet, and the second idle period is in the same standard bluetooth slot as at least a part of a data period in which an audio data packet is received.

The embodiment of the invention discloses a master-slave Bluetooth headset switching method, which is characterized in that the residual electric quantity of a slave headset is sent to a master headset in an idle period in a standard Bluetooth time slot of an established master-slave Bluetooth link, and the master headset sends a master-slave switching request to the slave headset after the difference value between the residual electric quantity of the slave headset and the residual electric quantity of the master headset exceeds a preset value, so that the master-slave switching operation is timely executed according to the residual electric quantity of the master headset and the slave headset, the battery electric quantity of the master-slave Bluetooth headset is balanced, and the service life of a battery is prolonged; moreover, because the one-step or multi-step operation of master-slave switching is carried out in the time period when the operation of receiving and monitoring the audio data packet is not carried out, on one hand, the bandwidth occupation of receiving and monitoring the audio data packet is reduced, namely, the bandwidth loss is reduced; on the other hand, can not influence the owner, follow the earphone and press normal receipt of bluetooth communication standard agreement, monitor a plurality of audio data package, then, can not cause the card of audio playback to pause, promoted user experience.

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

step S101: monitoring a plurality of audio data packets sent by sound source equipment according to a Bluetooth communication standard protocol, and receiving the plurality of audio data packets by the main earphone according to the Bluetooth communication standard protocol during the monitoring; step S103: establishing a master-slave Bluetooth link with the master earphone so as to perform data interaction with the master earphone; step S105: sending the residual capacity of the slave earphone to the master earphone; step S107: receiving a master-slave switching request sent by a master earphone, wherein the master earphone sends the master-slave switching request to a slave earphone after the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value; step S109: sending a master-slave switching response to the master earphone according to the master-slave switching request; and step S111: when the master earphone 100 receives the master-slave switching response, the master-slave switching operation is executed when the master-slave switching time arrives; wherein at least one of steps S105, S107, S109 and S111 is completed in a first idle period, the first idle period is a period in which the listening operation for the audio data packet is not performed from the headset, and the first idle period and the period in which at least part of data of one audio data packet is listened to are in the same standard bluetooth timeslot.

The embodiment of the invention discloses a master-slave Bluetooth headset switching method, which is characterized in that the residual electric quantity of a slave headset is sent to a master headset in an idle period in a standard Bluetooth time slot of an established master-slave Bluetooth link, and the master headset sends a master-slave switching request to the slave headset after the difference value between the residual electric quantity of the slave headset and the residual electric quantity of the master headset exceeds a preset value, so that the master-slave switching operation is timely executed according to the residual electric quantity of the master headset and the slave headset, the battery electric quantity of the master-slave Bluetooth headset is balanced, and the service life of a battery is prolonged; moreover, because the one-step or multi-step operation of master-slave switching is carried out in the time period when the operation of monitoring the audio data packet is not carried out, on one hand, the bandwidth occupation of the audio data packet is reduced, namely, the bandwidth loss is reduced; on the other hand, can not influence from the earphone and monitor a plurality of audio data package according to bluetooth communication standard agreement is normal, then, can not cause the card of audio playback to pause, has promoted user experience.

Optionally, the step S105 includes: and after the slave earphone monitors the current audio data packet sent by the sound source equipment, sending an audio monitoring success response packet to the master earphone, wherein the audio monitoring success response packet comprises the residual electric quantity of the slave earphone.

Optionally, an audio listening success acknowledgement packet is sent to the master earpiece during a most recent first idle period.

Optionally, the method further comprises: when the residual electric quantity of the slave earphone is smaller than an electric quantity threshold value, a Bluetooth communication ending request is sent to the master earphone in the first idle period; and when the slave earphone receives the Bluetooth communication ending response sent by the master earphone, outputting an instruction for turning off the power supply of the slave earphone so as to turn off the power supply of the slave earphone.

According to a third aspect, an embodiment of the present invention discloses a master-slave bluetooth headset switching method, which is used for a master headset, and the method includes the following steps:

step S501: receiving a plurality of audio data packets sent by sound source equipment according to a Bluetooth communication standard protocol, and monitoring the plurality of audio data packets from the earphone according to the Bluetooth communication standard protocol during the period; step S503: establishing a master-slave Bluetooth link with the slave earphone to perform data interaction with the slave earphone; step S505: receiving the remaining power of the slave earphone transmitted from the earphone; step S507: judging whether the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value or not; step S509: if the residual capacity of the slave earphone and the residual capacity of the master earphone exceed preset values, sending a master-slave switching request to the slave earphone; step S511: receiving a master-slave switching response sent by the slave earphone according to the master-slave switching request; and step S513: executing master-slave switching operation when master-slave switching time arrives according to the master-slave switching response; wherein at least one of the steps S505, S507, S509, S511 and S513 is completed in a second idle period, the second idle period is a period in which the master earphone does not perform an operation of receiving an audio data packet, and the second idle period and at least a part of a data period in which an audio data packet is received are in the same standard bluetooth timeslot.

The embodiment of the invention discloses a master-slave Bluetooth headset switching method, which is characterized in that the residual electric quantity of a slave headset is sent to a master headset in an idle period in a standard Bluetooth time slot of an established master-slave Bluetooth link, and the master headset sends a master-slave switching request to the slave headset after the difference value between the residual electric quantity of the slave headset and the residual electric quantity of the master headset exceeds a preset value, so that the master-slave switching operation is timely executed according to the residual electric quantity of the master headset and the slave headset, the battery electric quantity of the master-slave Bluetooth headset is balanced, and the service life of a battery is prolonged; moreover, because the one-step or multi-step operation of master-slave switching is carried out in the time period when the operations of receiving and monitoring the audio data packet are not carried out, on one hand, the bandwidth occupation of the received audio data packet is reduced, namely, the bandwidth loss is reduced; on the other hand, the main earphone can not be influenced to normally receive a plurality of audio data packets according to the Bluetooth communication standard protocol, and then, the audio playing can not be blocked, and the user experience is improved.

Optionally, step S505 includes: receiving an audio monitoring success response packet sent from the earphone, wherein the audio monitoring success response packet represents a current audio data packet sent from the earphone to the sound source equipment in a successful monitoring mode; and acquiring the residual power of the slave earphone from the audio monitoring success response packet.

Optionally, step S509 includes: and if the residual capacity of the slave earphone and the residual capacity of the master earphone exceed preset values, sending a master-slave switching request to the slave earphone in the latest second idle period.

Optionally, the method further comprises: receiving an end bluetooth communication request transmitted from the headset during a second idle period; transmitting a response to the slave headset that the request for ending the bluetooth communication is received; and outputting an instruction for turning off the power supply of the main earphone according to the Bluetooth communication ending request so as to turn off the power supply of the main earphone.

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

the monitoring module is used for monitoring a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol, and during the period, the main earphone receives the plurality of audio data packets according to the Bluetooth communication standard protocol; the first establishing module is used for establishing a master-slave Bluetooth link with the master earphone so as to perform data interaction with the master earphone; the electric quantity sending module is used for sending the residual electric quantity of the slave earphone to the master earphone; the request receiving module is used for receiving a master-slave switching request sent by the master earphone, wherein the master earphone sends the master-slave switching request to the slave earphone after the difference value between the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceeds a preset value; the response module is used for sending a master-slave switching response to the master earphone according to the master-slave switching request; the first switching module is used for executing master-slave switching operation when master-slave switching time arrives after the master earphone receives the master-slave switching response; at least one of the electric quantity sending module, the request receiving module, the response module and the first switching module is completed in a first idle time period, the first idle time period is a time period when the earphone does not execute the operation of monitoring the audio data packet, and the first idle time period and the time period when at least part of data of one audio data packet is monitored are in the same standard Bluetooth time slot;

optionally, the method further comprises: the data receiving module is used for receiving a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol, and during the period, the earphone monitors the plurality of audio data packets according to the Bluetooth communication standard protocol; the second establishing module is used for establishing a master-slave Bluetooth link with the slave earphone so as to perform data interaction with the slave earphone; the power receiving module is used for receiving the residual power of the slave earphone sent by the slave earphone; the electric quantity judging module is used for judging whether the difference value between the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceeds a preset value or not; the request sending module is used for sending a master-slave switching request to the slave earphone if the electric quantity judging module judges that the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceed a preset value; the response receiving module is used for receiving a master-slave switching response sent by the slave earphone according to the master-slave switching request; the second switching module is used for executing master-slave switching operation when master-slave switching time arrives according to the master-slave switching response; at least one of the electric quantity sending module, the request receiving module, the response module and the first switching module is completed in a second idle time period, the second idle time period is a time period when the main earphone does not execute an operation of receiving the audio data packet, and the second idle time period and at least part of data time periods when the audio data packet is received are in the same standard Bluetooth time slot.

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

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

According to a seventh aspect, an embodiment of the present invention discloses a bluetooth headset system, including: the slave earphone is used for monitoring and playing a plurality of audio data packets sent by the sound source equipment; the main earphone is used for receiving and playing a plurality of audio data packets sent by the sound source equipment; wherein, the slave earphone and the master earphone form a Bluetooth earphone pair; the slave earphone is the Bluetooth earphone disclosed in any of the fifth aspects; the master earphone is the bluetooth earphone disclosed in any of the above sixth aspects.

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

the bluetooth headset system as disclosed in any of the seventh aspects above; and the sound source equipment is used for providing a plurality of audio data packets for the Bluetooth headset system.

Alternatively, the sound source device may be a device having a bluetooth communication function and an audio data providing function, such as a mobile phone, a tablet computer, a notebook computer, and a video player.

According to a ninth aspect, an embodiment of the present invention discloses a bluetooth headset chip, having an integrated circuit thereon, the integrated circuit being configured to implement any of the methods disclosed in the second aspect above; or/and for implementing any of the methods disclosed in the third aspect above.

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

Drawings

Preferred embodiments according to the present invention will be described below with reference to the accompanying drawings. In the figure:

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

FIG. 2 is a communication timeslot diagram according to an embodiment of the present invention;

fig. 3 is a flowchart of a master-slave bluetooth headset switching method for a slave headset according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a remaining power transmission method according to an embodiment of the present invention;

fig. 5 is a flowchart of a master-slave bluetooth headset switching method for a master headset according to an embodiment of the present invention;

fig. 6 is a timing diagram of a master-slave bluetooth headset switching method disclosed in the embodiment of the present invention;

fig. 7 is a schematic diagram of a three-terminal system data transceiving and forwarding flow disclosed in the embodiment of the present invention;

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

fig. 9 is a schematic diagram of a shutdown process of a bluetooth headset according to an embodiment of the present invention;

fig. 10a is a structural diagram of a master-slave bluetooth headset switching device for a slave headset according to an embodiment of the present invention;

fig. 10b is a structural diagram of a master-slave bluetooth headset switching device for a master headset according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a bluetooth headset system according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a bluetooth headset chip according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments are described to explain the present invention by referring to the figures.

Fig. 1 is a system diagram of an embodiment of the present invention, the system including an audio source device (e.g., a mobile phone), a master bluetooth headset (e.g., master bluetooth headset 100, hereinafter referred to as master headset), and a slave bluetooth headset (e.g., slave bluetooth headset 200, hereinafter referred to as slave headset).

Establishing a Bluetooth link 1 between the mobile phone and the main earphone for Bluetooth communication, sending a plurality of audio data packets to the main earphone by the mobile phone, and playing after receiving the audio data packets by the main earphone; another bluetooth link (namely a master-slave bluetooth link) is established between the master earphone and the slave earphone, the master earphone sends the information of the bluetooth link 1 to the slave earphone, so that the slave earphone establishes a monitoring bluetooth link 2 to monitor the audio data packet sent by the mobile phone to the master earphone, and the slave earphone can also acquire the audio data packet sent by the mobile phone to the master earphone and play the audio data packet.

As shown in fig. 2, after the three links are established, the frequency hopping sequences of the handset, the master earphone and the slave earphone are the same, and the duration of each frequency point is 625 μ s (i.e. a standard time slot of bluetooth), for example, in the nth standard time slot, the handset transmits an audio data packet 10, the master earphone receives the audio data packet 10 in the time period of the standard time slot, and the slave earphone listens to receive the audio data packet 10 in the time period 30 of the standard time slot; in the next n +1 standard time slot, the master earphone may send data to the handset, for example, when both the master earphone and the slave earphone successfully receive the audio data packet, or the master earphone successfully receives the audio data packet but the slave earphone does not receive the audio data packet, send an acknowledgement packet ACK to the handset that the audio reception was successful.

In the communication process, the two earphones which are respectively used as the master earphone and the slave earphone are subjected to different signal interference, and the power consumption is different, so that in some scenes, the two earphones need to be frequently switched between master and slave, and the communication quality is improved or the electric quantity balance of the two earphones is improved.

In order to timely and effectively achieve the power balance between the two earphones, based on the system shown in fig. 1, the present embodiment provides a method for switching a master bluetooth earphone and a slave bluetooth earphone, which is used at the slave earphone end, please refer to fig. 3, which is a flowchart of the method for switching the master bluetooth earphone and the slave bluetooth earphone disclosed in the present embodiment, and the method for switching the master bluetooth earphone and the slave bluetooth earphone includes the following steps:

step S101: and monitoring a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol. Referring to fig. 1, the slave earphone 200 listens to a plurality of audio data packets sent by an audio source device (e.g., a mobile phone) according to a bluetooth communication standard protocol through a listening bluetooth link 2; during listening to the plurality of audio data packets from the headset 200, the master headset receives the plurality of audio data packets in the bluetooth communication standard protocol, and in particular, over the bluetooth link 1. In this embodiment, a plurality of audio data packets sent by a sound source device (e.g., a mobile phone) form an audio file, that is, one audio file (e.g., a song) includes a plurality of audio data packets. As an example of an audio data packet, referring to fig. 2, the handset sends an audio data packet 10 to the master earpiece and the slave earpiece listens for the audio data packet 10 on the listening bluetooth link 2.

Step S103: and establishing a master-slave Bluetooth link with the master earphone so as to perform data interaction with the master earphone. Referring to fig. 1, in this embodiment, data interaction between the master earphone and the slave earphone is implemented through a master-slave bluetooth link, for example, forwarding an audio data packet, sending a master-slave switching request, and the like.

It should be noted that, in the specific implementation process, the order of execution between step S101 and step S103 is clear to those skilled in the art.

Step S105: and transmitting the residual power of the slave earphone to the master earphone. In a specific embodiment, the slave earphone 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 earphone 100 through the master-slave bluetooth link. It should be noted that, in an embodiment, the remaining capacity may be a percentage of the remaining capacity of the battery to the total capacity of the battery, or may be the capacity itself (e.g., xx milliamperes).

Step S107: and receiving a master-slave switching request sent by the master earphone. In a particular embodiment, the slave headset 200 receives a master-slave switch request sent by the master headset 100 over a master-slave bluetooth link. In this embodiment, the master earphone 100 may also collect the remaining power of the battery through its own sampling module or power monitoring module, and the master earphone 100 sends a master-slave switching request to the slave earphone after a difference between the remaining power of the slave earphone 200 and the remaining power of the master earphone exceeds a preset value, where the preset value may be determined empirically. It should be noted that, the unit of the remaining power of the slave earphone is consistent with that of the master earphone, for example, when the remaining power of the slave earphone 200 is the percentage of the remaining power of the slave earphone 200 to the total capacity of the battery, the remaining power of the master earphone 100 should also be the percentage of the remaining power of the master earphone 100 to the total capacity of the battery; as another example, when the remaining power of the slave headset 200 is the remaining power of the slave headset 200 itself, the remaining power of the master headset 100 should also be the remaining power of the master headset 100 itself.

Step S109: and sending a master-slave switching response to the master earphone according to the master-slave switching request. In a particular embodiment, the slave earpiece 200 sends a master-slave switch acknowledgement to the master earpiece 100 over the master-slave bluetooth link. In an alternative embodiment, the master-slave switch reply may be sent to the master earpiece in the form of an additional packet.

Step S111: and executing the master-slave switching operation when the master-slave switching time arrives. In this embodiment, after the master earphone 100 receives the master-slave switching response, the master-slave switching operation is performed when the master-slave switching time arrives. After master-slave switching operation is executed, the master-slave relation of the two earphones is exchanged, namely the Bluetooth earphone which is currently the master earphone is changed into the slave earphone, and an audio data packet sent by the mobile phone is obtained in a monitoring mode; currently, the bluetooth earphone of the slave earphone is changed into the master earphone, and the audio data packet sent by the mobile phone is obtained in a receiving mode. Specifically, the two earphones can determine the time of master-slave switching according to a protocol; the master-slave switching time may also be indicated when a master-slave switching request is initiated.

In the present 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 in which the slave headset 200 does not perform an operation of listening for an audio data packet, and the first idle period is within the same standard bluetooth slot as a period in which at least part of data of one audio data packet is listened to. It should be noted that, all the steps may be executed in an idle time period, or some of the steps may be executed in an idle time period; the first idle period may be a period within one standard bluetooth slot or may be a period distributed in different bluetooth slots. For example, when step S105 is executed, the slave earphone 200 may collect the remaining power and send the remaining power to the master earphone 100 in the same first idle period; the slave headset 200 may also collect the remaining power during the current first idle period and transmit to the master headset 100 during the next first idle period.

To facilitate understanding of those skilled in the art, referring to fig. 2, in the bluetooth protocol, each standard timeslot may be divided into two parts, a first part time period t1 (which may be referred to as a useful time period) is used for transceiving data, and a second part time period t2 (which may be referred to as an idle time period) is used for allowing the bluetooth device to frequency hop to the standard timeslot corresponding to the next frequency point. 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 can be made shorter, and therefore, the master and slave earpieces can transmit and receive data packets or other operations during the idle period t2, for example, the slave earpiece can transmit additional packets during the idle period or acquire its own remaining power, for example. As shown in fig. 2, the first idle period t2 is in the same standard bluetooth slot (nth slot) as the period when at least part of the audio data (data in the audio data packet 10) is listened to.

In an alternative embodiment, when step S105 is executed, the remaining power of the slave earphone may be included in the response packet and sent to the master earphone, so that the transceiving operation 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 by the slave earphone 200, an audio monitoring success response packet is sent to the master earphone 100, where the audio monitoring success response packet includes the remaining power of the slave earphone. Referring to fig. 2, the slave headset 200 listens for the audio data 10 on the listening bluetooth link 2, and if the audio data 10 is successfully received, an audio listening success response packet 31 (alternatively referred to as an additional packet 31) is sent to the master headset 100 during an idle period t2 in the standard bluetooth timeslot, wherein the listening success response packet 31 includes the remaining power of the slave headset 200 itself.

In the specific implementation process, please refer to fig. 4, which illustrates the interaction process of multiple successful listening response packets (additional packets 1-N) of the master and slave headsets: taking the first listening successful response packet (as the additional packet 1 in fig. 4) as an example, please refer to fig. 2 and 4, the remaining power of the slave headset 200 is collected, and then the remaining power is sent to the master headset 200 as the content of the listening successful response packet 31 (the listening successful response packet may also include other content), and after the master headset 200 receives the listening successful response packet (as shown by the reference numeral 21 in fig. 2), the master headset disassembles the listening successful response packet 21 (as the additional packet 1 in fig. 4) to obtain the remaining power of the slave headset 200.

In this embodiment, the first idle period t2 is used to send the remaining power, so that the occupation of the useful bandwidth can be reduced, and the waste of bandwidth resources can be reduced. Further, by listening for the successful response packet 31 to contain the remaining power of the slave headset, the occupation of bandwidth resources can be further reduced.

In an alternative embodiment, in order to further improve the timeliness of transmitting the remaining power, an audio listening success response packet may be transmitted to the master earphone 100 in the last first idle period, especially in a scenario where the remaining power of the slave earphone 200 is difficult to maintain the slave earphone 200 to work normally.

In an alternative embodiment, when the power of the slave earphone 200 is not enough to maintain the normal operation of the slave earphone 200 and needs to be powered off, the master-slave bluetooth earphone switching method further includes: when the remaining power of the slave earphone 200 is less than the power threshold, transmitting a bluetooth communication end request to the master earphone 100 in a first idle period; when receiving the end bluetooth communication response transmitted by the master earphone 100, the slave earphone 200 outputs an instruction to turn off the power of the slave earphone, thereby turning off the power of the slave earphone.

The present embodiment further discloses a method for switching a master bluetooth headset and a slave bluetooth headset, which is used for the master headset 100, please refer to fig. 5, which is a flowchart of the method for switching the master bluetooth headset and the slave bluetooth headset disclosed in the present embodiment, and the method for switching the master bluetooth headset and the slave bluetooth headset includes the following steps:

step S501: and receiving a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol. During the period, the slave earphone listens to a plurality of audio data packets according to the Bluetooth communication standard protocol. Specifically, please refer to the description of step S101.

Step S503: a master-slave bluetooth link is established with the slave headset for 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, the order of execution between step S501 and step S503 is clear to those skilled in the art.

Step S505: and receiving the remaining power of the slave earphone transmitted from the earphone. In a specific embodiment, the remaining power of the slave earphone can be received through the master-slave bluetooth link, specifically, please refer to the description of step S105.

Step S507: and judging whether the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value. In a specific embodiment, the main earphone 100 may 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 earphone, the remaining power of the slave earphone and the remaining power of the master earphone can be differed to obtain a remaining power difference value; and judging whether the difference exceeds a preset value, if so, indicating that the residual capacity of the slave earphone is too surplus relative to the residual capacity of the master earphone, and if so, performing step S509 if the residual capacities of the master earphone and the slave earphone are unbalanced. If the difference does not exceed the preset value, it indicates that the remaining power of the two earphones is relatively balanced, and it is not necessary to perform master-slave switching, and at this time, the remaining power transmitted from the earphone 100 next time can be received. In a specific embodiment, the preset value may be determined empirically, for example, when the remaining capacity is a percentage of the remaining capacity of the battery to the total capacity of the battery, the preset value may be set to be, for example, 5% to 10%, it should be noted that the above values are merely exemplary descriptions, and specific values cannot be considered as limitations of the present disclosure.

Step S509: a master-slave switch request is sent to the slave headset. In a particular embodiment, the master earpiece 100 sends a master-slave switch request to the slave earpiece 200 over the master-slave bluetooth link.

In a preferred embodiment, in order to further improve the timeliness of the master-slave switching, if the remaining power of the slave earphone and the remaining power of the master earphone exceed the preset value, a master-slave switching request may be sent to the slave earphone 200 in the latest second idle period, and especially when the difference is too large, it indicates that the power between the two earphones is severely unbalanced, and the master-slave switching needs to be performed in time.

Step S511: and receiving a master-slave switching response sent by the slave earphone according to the master-slave switching request. In a specific embodiment, the master earpiece 100 receives a master-slave switching reply sent by the slave earpiece 200 according to the master-slave switching request over the master-slave bluetooth link. In an alternative embodiment, the master-slave handover acknowledgement may be obtained by an additional packet.

Step S513: and executing master-slave switching operation when master-slave switching time arrives according to the master-slave switching response. Specifically, please refer to the description of step S511.

In the present embodiment, at least one of the above-described 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 in which the primary earphone 100 does not perform an operation of receiving an audio data packet, and the second idle period is in the same standard bluetooth timeslot as at least a part of a data period in which an audio data packet is received. It should be noted that, all the steps may be executed in an idle time period, or some of the steps may be executed in an idle time period; the second idle period may be a period within one standard bluetooth slot or may be a period distributed over different standard bluetooth slots.

It should be noted that, in the process of executing step S509, the two earphones may determine the time of master-slave switching according to the protocol; the master-slave switching time may also be indicated when a master-slave switching request is initiated. When the master-slave switching time is indicated by adopting the master-slave switching request, the time position of the master-slave switching request carried in the second idle period can be used for indicating the master-slave switching in the fifth time slot, namely the second idle period is divided into a plurality of small time slots, the master-slave switching request is sent in the fifth small time slot, and the master-slave switching in the corresponding fifth standard time slot can be expressed by an agreed formula, so that the information transmission can be reduced, and the utilization rate of the bandwidth is improved.

It should be noted that, regarding the understanding of the second idle period, reference may be made to the exemplary description of the first idle period, and the principle is similar; the difference is that the useful time period is different from the interaction mode of the mobile phone, the slave earphone is used for monitoring, and the master earphone is used for receiving.

In an optional embodiment, when step S505 is executed, the remaining power of the slave earphone may be obtained by disassembling the listening successful response packet of the slave earphone, so that the transceiving operation 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, wherein the audio monitoring success response packet represents that the headset 200 successfully monitors the current audio data packet sent by the sound source equipment; and acquiring the residual power of the slave earphone from the audio monitoring success response packet. Specifically, please refer to the description of fig. 2 and fig. 4 of the above embodiment, after the remaining power of the slave earphone is obtained through disassembly, the remaining power of the master earphone can be compared with the remaining power of the master earphone collected by the master earphone 100, so as to determine whether the remaining power is greater than the preset value.

In an alternative embodiment, when the power of the slave earphone 200 is not enough to maintain the normal operation of the slave earphone 200 and needs to be powered off, the master-slave bluetooth earphone switching method further includes: receiving an end bluetooth communication request transmitted from the headset 200 in the second idle period; transmitting a response to the slave headset 200 that the bluetooth communication end request is received; an instruction to turn off the power of the main headset 100 is output according to the end bluetooth communication request to turn off the power of the main headset 100.

In the master-slave bluetooth headset switching method disclosed by the embodiment, the remaining power of the slave headset sent by the slave headset is received in the idle period in the standard bluetooth timeslot of the established master-slave bluetooth link, and the master headset sends a master-slave switching request to the slave headset after the difference between the remaining power of the slave headset and the remaining power of the master headset exceeds the preset value, so that the master-slave switching operation is timely executed according to the remaining power of the master-slave headset, the battery power of the master-slave bluetooth headset is balanced, and the service life of a battery is prolonged; moreover, because the one-step or multi-step operation of master-slave switching is carried out in the time period when the operation of receiving the audio data packet is not carried out, on one hand, the bandwidth occupation of the received audio data packet is reduced, namely, the bandwidth loss is reduced; on the other hand, the main earphone can not be influenced to normally receive a plurality of audio data packets according to the Bluetooth communication standard protocol, and then, the audio playing can not be blocked, and the user experience is improved.

This embodiment also discloses a method for switching master and slave bluetooth headsets, please refer to fig. 6, which is a timing chart of the method for switching master and slave bluetooth headsets disclosed in this embodiment, and the method for switching master and slave bluetooth headsets includes the following steps:

step S901: the master earphone 100 receives a plurality of audio data packets transmitted by the audio source device according to the bluetooth communication standard protocol. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S903: the slave headset 200 listens for a plurality of audio data packets transmitted by the audio source device according to the bluetooth communication standard protocol. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S905: the master earphone 100 establishes a master-slave bluetooth link with the slave earphone 200 to enable the master earphone 100 to perform data interaction with the slave earphone 200. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S907: the slave earphone 200 transmits the remaining power of the slave earphone to the master earphone 100. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S909: the master earphone 100 receives the remaining power of the slave earphone transmitted from the slave earphone 200. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S911: the master earphone 100 determines whether the remaining power of the slave earphone and the remaining power of the master earphone exceed preset values. 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 performed. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S913: the master earpiece 100 sends a master-slave switch request to the slave earpiece 200. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S915: the slave headset 200 receives a master-slave switching request sent by the master headset 100. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S917: the slave headset 200 sends a master-slave switching reply to the master headset 100 according to the master-slave switching request. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S919: the master earpiece 100 receives the master-slave switch acknowledgement. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

Step S921: the master earphone 100 and the slave earphone 200 perform a master-slave switching operation when the master-slave switching time comes. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

In the above steps, at least one of the steps S907, S915, S917 and S921 is completed in a first idle period, where the first idle period is a period in which the slave 200 does not perform an operation of listening to an audio data packet, and the first idle period and a period in which at least part of data of one audio data packet is listened to are in the same standard bluetooth timeslot; in the above steps, at least one of step S909, step S911, step S913, step S919, and step S921 is completed in a second idle period, which is a period in which the primary earphone 100 does not perform an operation of receiving an audio data packet, and the second idle period is in the same standard bluetooth slot as at least a part of a data period in which an audio data packet is received. Specifically, please refer to the description of the above embodiments, which is not repeated herein.

For the convenience of understanding by those skilled in the art, please refer to fig. 7, which is a schematic diagram illustrating a system data transceiving and forwarding flow composed of a mobile phone, a master earphone and a slave earphone disclosed in this embodiment, as can be seen from fig. 3, after the slave earphone monitors an audio data packet (for example, data packet 1), an additional packet is sent to the master earphone, which indicates that the slave earphone monitors data packet 1; the master earphone receives the data packets (e.g., data packet 1 and data packet 2) sent by the handset, and sends a successful receipt acknowledgement ACK to the handset (e.g., as shown at 22 in fig. 2). In an appointed time slot, the master earphone communicates with the slave earphone, the master earphone forwards the data packet 2 which is not received by the slave earphone to the slave earphone, the slave earphone receives the data packet 2 and then sends a monitoring success response ACK to the master earphone (for example, as shown in fig. 2 by marks 31 and 21), the master earphone receives the ACK and then sends a forwarding end message to the slave earphone, the slave earphone sends the response ACK to the master earphone again, the master earphone receives the ACK and then ends the communication between the master earphone and the slave earphone, and the master earphone communicates with the mobile phone again to continue receiving the audio data.

In the master-slave switching method of this embodiment, based on the system data flow, the additional packet sent from the slave earphone to the master earphone includes the remaining power of the slave earphone itself; after receiving the additional packet, the main earphone analyzes the additional packet, so that the remaining power information of the auxiliary earphone is obtained, and the main earphone also obtains the remaining power of the main earphone; the main earphone compares the remaining capacity of the slave earphone with the remaining capacity of the main earphone: if the electric quantity of the slave earphone is more sufficient, the master earphone sends a master-slave switching request to the slave earphone; if the electric quantity of the main earphone is more sufficient, the main earphone does not send a main-slave switching request.

If the master earphone decides to send a master-slave switching request, the master earphone sends a master-slave switching request to the slave earphone (for example, as shown by reference numeral 23 in fig. 2);

as shown in fig. 8, after receiving the master-slave switching request, the slave earphone sends an agreement request response to the master earphone, and the slave earphone marks itself as the master earphone and maintains the listening state. For example, after receiving the master-slave switching request in the idle period of the standard time slot, the slave earphone sends an agreement request response to the master earphone, and the slave earphone marks itself as the master earphone and keeps the monitoring state;

after receiving the response of the agreement request sent by the slave earphone, the master earphone marks that the master earphone is the slave earphone and switches to a monitoring state, and then sends a role switching command to the slave earphone (SWITCH START);

and the slave earphone replies an ACK response to the master earphone after receiving the switching command, and establishes Bluetooth communication connection with the mobile phone, so that the slave earphone becomes the master earphone.

Through the scheme, the master and slave roles of the master earphone and the slave earphone are continuously switched, so that the residual electric quantity of the master earphone and the slave earphone is balanced as much as possible until the residual electric quantity of any earphone reaches the electric quantity threshold value, and the master earphone, the slave earphone and a related Bluetooth link are required to be closed at the moment.

As shown in fig. 9, when the remaining power of the slave earphone first reaches the power threshold, the method includes the following steps:

sending a disconnect bluetooth connection (DETACH) command from the headset to the master headset;

after receiving the command for disconnecting the Bluetooth connection, the main earphone sends a request for closing the baseband link to the mobile phone;

after receiving the request for closing the baseband link, the mobile phone sends a response for closing the baseband link to the main earphone, and then closes the baseband link;

after receiving the response of closing the baseband link, the master earphone sends the information that the baseband link is closed to the slave earphone;

after receiving the information that the baseband link is closed, the slave earphone sends an Acknowledgement (ACK) to the master earphone, then a Bluetooth link between the master earphone and the slave earphone is disconnected, and then the power supply of the slave earphone is closed;

and after receiving the response, the main earphone sends information of disconnection to the mobile phone, and then the power supply of the main earphone is turned off.

And when the residual capacity of the master earphone reaches the capacity threshold, the processing procedure that the slave earphone reaches the capacity threshold can be referred.

The present embodiment further discloses a master-slave bluetooth headset switching device, which is used for a slave headset, please refer to fig. 10a, which is a schematic structural diagram of a master-slave bluetooth headset switching device at a slave headset end disclosed in the present embodiment, and the device includes: the monitoring module 101, the first establishing module 102, the electric quantity sending module 103, the request receiving module 104, the answering module 105 and the first switching module 106, wherein:

the monitoring module 101 is configured to monitor a plurality of audio data packets sent by the sound source device according to a bluetooth communication standard protocol, and during the monitoring, the main earphone receives the plurality of audio data packets according to the bluetooth communication standard protocol; the first establishing module 102 is configured to establish a master-slave bluetooth link with a master headset to perform data interaction with the master headset; the power transmitting module 103 is configured to transmit the remaining power of the slave earphone to the master earphone 100; the request receiving module 104 is configured to receive a master-slave switching request sent by a master earphone, where the master earphone sends the master-slave switching request to a slave earphone after a difference between remaining power of the slave earphone and remaining power of the master earphone exceeds a preset value; the response module 105 is configured to send a master-slave switching response to the master earphone 100 according to the master-slave switching request; the first switching module 106 is configured to execute a master-slave switching operation when the master earphone 100 receives the master-slave switching response and the master-slave switching time arrives;

at least one of the power transmitting module, the request receiving module, the response module and the first switching module is completed in a first idle period, the first idle period is a period in which the slave headset 200 does not perform an operation of monitoring an audio data packet, and the first idle period and a period in which at least part of data of one audio data packet is monitored are in the same standard bluetooth timeslot.

The present embodiment further discloses a switching device for master-slave bluetooth headsets, which is used for a master headset, please refer to fig. 10b, which is a schematic structural diagram of a switching device for master-slave bluetooth headsets at a master headset end disclosed in the present embodiment, and the switching device includes: a data receiving module 107, a second establishing module 108, an electric quantity receiving module 109, an electric quantity judging module 110, a request sending module 111, a response receiving module 112, and a second switching module 113, wherein:

the data receiving module 107 is configured to receive a plurality of audio data packets sent by the sound source device according to a bluetooth communication standard protocol, and during the period, monitor the plurality of audio data packets from the headset according to the bluetooth communication standard protocol; the second establishing module 108 is configured to establish a master-slave bluetooth link with the slave headset for data interaction with the slave headset; the power receiving module 109 is configured to receive the remaining power of the slave headset sent from the headset 200; the power determining module 110 is configured to determine whether a difference between the remaining power of the slave earphone and the remaining power of the master earphone exceeds a preset value; the request sending module 111 is configured to send a master-slave switching request to the slave earphone 200 if the electric quantity determination module determines that the remaining electric quantity of the slave earphone and the remaining electric quantity of the master earphone exceed a preset value; the response receiving module 112 is configured to receive a master-slave switching response sent by the slave headset 200 according to the master-slave switching request; the second switching module 113 is used for executing the master-slave switching operation when the master-slave switching time arrives according to the master-slave switching response;

at least one of the power transmitting module, the request receiving module, the power determining module, the response module and the first switching module is completed in a second idle period, the second idle period is a period in which the main earphone 100 does not execute an operation of receiving an audio data packet, and the second idle period and at least a part of a data period in which an audio data packet is received are in the same standard bluetooth timeslot.

The embodiment also discloses a bluetooth headset, which comprises a processor, wherein the processor is used for realizing the method for slave headset disclosed by any embodiment.

The embodiment also discloses a bluetooth headset, which comprises a processor, wherein the processor is used for realizing the method for the main headset disclosed by any embodiment.

It should be noted that, in the implementation process, the processor of each bluetooth headset is used to implement the method disclosed in any embodiment of the master headset and the slave headset in a time-sharing manner.

Referring to fig. 11, a schematic structural diagram of a bluetooth headset system disclosed in this embodiment is shown, where the bluetooth headset system includes: a slave earphone and a master earphone, wherein:

the slave earphone is used for monitoring and playing a plurality of audio data packets sent by the sound source equipment; the main earphone is used for receiving and playing a plurality of audio data packets sent by the sound source equipment. Wherein, the slave earphone and the master earphone form a Bluetooth earphone pair; the slave earphone is the Bluetooth earphone for realizing the slave earphone end method disclosed by any one of the above embodiments; the master earphone is the bluetooth earphone disclosed in any of the above embodiments for implementing the method of the master earphone end.

It should be noted that, in the implementation process, the master-slave relationship between the master earphone and the slave earphone may be interchanged.

This embodiment also discloses a bluetooth audio playback system, includes: sound source equipment and the bluetooth headset system disclosed in the above embodiment, wherein: the sound source device is used for providing a plurality of audio data packets for the Bluetooth headset system. In an alternative embodiment, the audio source device may be a device having a bluetooth communication function and an audio data providing function, such as a mobile phone, a tablet computer, a notebook computer, and a video player.

The present embodiment also discloses a computer-readable storage medium having stored thereon a computer program for being executed to implement the method for slave earphone disclosed in any of the above embodiments or the method for master earphone disclosed in any of the above embodiments.

The embodiment also discloses a bluetooth headset chip, which is provided with an integrated circuit, wherein the integrated circuit is used for realizing the method for the slave headset disclosed in any embodiment, or/and is used for realizing the method for the master headset disclosed in any embodiment. Specifically, please refer to fig. 12, which is a schematic structural diagram of a bluetooth headset chip disclosed in this embodiment, an integrated circuit on the chip includes a processor 121, a wireless communication module 122 and a power module 123, wherein:

the processor 121 may be a micro-control chip with certain data processing capability, such as a DSP, a single chip, etc.; the processor 121 is configured to execute a program to implement the method disclosed in any of the above embodiments, which may be a slave earphone method or a master earphone 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 a master earphone and a slave earphone and communication between a Bluetooth earphone and a mobile phone;

the power module 123 is configured to provide and/or manage power for each functional circuit, and it should be noted that, in the specific implementation process, the power module 123 may be configured for the bluetooth headset chip alone, or may be shared with other chips;

it will be clear to those skilled in the art that, based on the disclosure of the above embodiments, the modules of the integrated circuit in the bluetooth headset chip are appropriately deleted or integrated and multiplexed. For example, in some embodiments, the integrated circuit in the bluetooth headset chip may further include an ADC module 124 for power harvesting; for another example, a comparator module 125 may be further included for comparing the two power quantities, and of course, in some embodiments, the function of the comparator module 125 may also be implemented by the processor 121, and in this case, the comparator module 125 may be omitted.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.

Claims

1. A master-slave Bluetooth headset switching method is used for a master headset and a slave headset, and is characterized by comprising the following steps:

step S901: the main earphone (100) receives a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol;

step S903: monitoring a plurality of audio data packets sent by a sound source device from an earphone (200) according to a Bluetooth communication standard protocol;

step S905: the master earphone (100) and the slave earphone (200) establish a master-slave Bluetooth link so that the master earphone (100) and the slave earphone (200) perform data interaction;

step S907: the slave earphone (200) transmitting the remaining power of the slave earphone to the master earphone (100);

step S909: the master earphone (100) receives the remaining power of the slave earphone transmitted by the slave earphone (200);

step S911: the master earphone (100) judges whether the residual capacity of the slave earphone and the residual capacity of the master earphone exceed preset values;

step S913: if the difference between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value, the master earphone (100) sends a master-slave switching request to the slave earphone (200);

step S915: the slave earphone (200) receives a master-slave switching request sent by the master earphone (100);

step S917: the slave earphone (200) sends a master-slave switching response to the master earphone (100) according to the master-slave switching request;

step S919: the master earphone (100) receives the master-slave switching response; and

step S921: when the master earphone (100) receives the master-slave switching response, the master earphone (100) and the slave earphone (200) execute master-slave switching operation when master-slave switching time arrives;

wherein at least one of the steps S907, S915, S917 and S921 is completed in a first idle period, the first idle period is a period in which the slave earphone (200) does not perform an operation of listening to the audio data packet, and the first idle period and a period in which at least part of data of one audio data packet is listened to are in the same standard bluetooth timeslot;

wherein at least one of the steps S909, S911, S913, S919, and S921 is completed in a second idle period, the second idle period is a period in which the master earphone (100) does not perform an operation of receiving the audio data packet, and the second idle period is in the same standard bluetooth slot as at least a part of a data period in which an audio data packet is received.

2. A master-slave Bluetooth headset switching method is used for a slave headset, and is characterized by comprising the following steps:

step S101: monitoring a plurality of audio data packets sent by sound source equipment according to a Bluetooth communication standard protocol, and receiving the plurality of audio data packets by the main earphone according to the Bluetooth communication standard protocol during the monitoring;

step S103: establishing a master-slave Bluetooth link with the master earphone so as to perform data interaction with the master earphone;

step S105: transmitting the remaining power of the slave earphone to the master earphone (100);

step S107: receiving a master-slave switching request sent by the master earphone, wherein the master earphone sends the master-slave switching request to the slave earphone after the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value;

step S109: sending a master-slave switching response to the master earphone (100) according to the master-slave switching request; and

step S111: when the master earphone (100) receives the master-slave switching response, executing master-slave switching operation when master-slave switching time arrives;

wherein at least one of the steps S105, S107, S109 and S111 is completed within a first idle period, the first idle period is a period in which the slave headset (200) does not perform the operation of listening to the audio data packet, and the first idle period is within the same standard bluetooth timeslot as a period in which at least part of data of one audio data packet is listened to.

3. The master-slave bluetooth headset switching method according to claim 2, wherein the step S105 comprises:

and after the slave earphone (200) monitors the current audio data packet sent by the sound source equipment, sending an audio monitoring successful response packet to the master earphone (100), wherein the audio monitoring successful response packet comprises the residual capacity of the slave earphone.

4. The master-slave Bluetooth headset switching method of claim 3,

further, to improve timeliness, an audio listening success acknowledgement packet is sent to the primary earpiece (100) during the most recent first idle period.

5. The master-slave bluetooth headset switching method according to any one of claims 2 to 4, further comprising:

when the remaining power of the slave earphone (200) is less than the power threshold, sending a Bluetooth communication ending request to the master earphone (100) in the first idle period;

and when the slave earphone (200) receives the Bluetooth communication ending response sent by the master earphone (100), outputting an instruction for turning off the power supply of the slave earphone so as to turn off the power supply of the slave earphone.

6. A master-slave bluetooth headset switching method for a master headset (100), characterized in that the method comprises the steps of:

step S501: receiving a plurality of audio data packets sent by sound source equipment according to a Bluetooth communication standard protocol, and monitoring the plurality of audio data packets from the earphone according to the Bluetooth communication standard protocol during the period;

step S503: establishing a master-slave Bluetooth link with the slave earphone to perform data interaction with the slave earphone;

step S505: receiving the remaining power of the slave earphone transmitted from the slave earphone (200);

step S507: judging whether the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value or not;

step S509: if the residual capacity of the slave earphone and the residual capacity of the master earphone exceed preset values, sending a master-slave switching request to the slave earphone (200);

step S511: receiving a master-slave switching response sent by the slave earphone (200) according to the master-slave switching request; and

step S513: executing master-slave switching operation when master-slave switching time arrives according to the master-slave switching response;

wherein at least one of the steps S505, S507, S509, S511 and S513 is completed in a second idle period, the second idle period is a period in which the primary earphone (100) does not perform an operation of receiving the audio data packet, and the second idle period and at least a part of a data period in which an audio data packet is received are in the same standard bluetooth timeslot.

7. The master-slave bluetooth headset switching method according to claim 6, wherein the step S505 comprises:

receiving an audio monitoring success response packet sent by the slave earphone (200), wherein the audio monitoring success response packet represents that the slave earphone (200) successfully monitors the current audio data packet sent by the audio source equipment;

and acquiring the residual power of the slave earphone from the audio monitoring success response packet.

8. The master-slave bluetooth headset switching method according to claim 6 or 7, wherein the step S509 comprises:

and if the residual capacity of the slave earphone and the residual capacity of the master earphone exceed preset values, sending a master-slave switching request to the slave earphone (200) in the latest second idle period.

9. The master-slave bluetooth headset switching method according to any one of claims 6 to 8, further comprising:

receiving the end Bluetooth communication request transmitted from the headset (200) during the second idle period;

transmitting a reply to the slave earphone (200) that the Bluetooth communication ending request is received;

outputting an instruction to turn off the power of the master earphone (100) according to the Bluetooth communication ending request to turn off the power of the master earphone (100).

10. A master-slave Bluetooth headset switching device, comprising:

the monitoring module is used for monitoring a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol, and during the period, the main earphone receives the plurality of audio data packets according to the Bluetooth communication standard protocol;

the first establishing module is used for establishing a master-slave Bluetooth link with the master earphone so as to perform data interaction with the master earphone;

a power transmitting module for transmitting the remaining power of the slave earphone to the master earphone (100);

the request receiving module is used for receiving a master-slave switching request sent by the master earphone, wherein the master earphone sends the master-slave switching request to the slave earphone after the difference value between the residual capacity of the slave earphone and the residual capacity of the master earphone exceeds a preset value;

the response module is used for sending a master-slave switching response to the master earphone (100) according to the master-slave switching request; and

the first switching module is used for executing master-slave switching operation when master-slave switching time arrives after the master earphone (100) receives the master-slave switching response;

wherein at least one of the power transmitting module, the request receiving module, the answering module and the first switching module is completed in a first idle period, the first idle period is a period in which the slave earphone (200) does not perform an operation of listening to the audio data packet, and the first idle period and a period in which at least part of data of one audio data packet is listened to are in the same standard bluetooth timeslot.

11. The master-slave bluetooth headset switching device of claim 10, wherein the device further comprises:

the data receiving module is used for receiving a plurality of audio data packets sent by the sound source equipment according to a Bluetooth communication standard protocol, and during the period, the earphone monitors the plurality of audio data packets according to the Bluetooth communication standard protocol;

the second establishing module is used for establishing a master-slave Bluetooth link with the slave earphone so as to perform data interaction with the slave earphone;

a power receiving module for receiving the remaining power of the slave earphone transmitted from the slave earphone (200);

the electric quantity judging module is used for judging whether the difference value between the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceeds a preset value or not;

the request sending module is used for sending a master-slave switching request to the slave earphone (200) if the electric quantity judging module judges that the residual electric quantity of the slave earphone and the residual electric quantity of the master earphone exceed a preset value;

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

the second switching module is used for executing master-slave switching operation when master-slave switching time arrives according to the master-slave switching response;

at least one of the electric quantity sending module, the request receiving module, the electric quantity judging module, the answering module and the first switching module is completed in a second idle time period, the second idle time period is a time period when the main earphone (100) does not execute the operation of receiving the audio data packet, and the second idle time period and at least part of data time periods of receiving one audio data packet are in the same standard Bluetooth time slot.

12. A Bluetooth headset comprising a processor, characterized in that the processor is configured to implement the method of any of claims 2-5.

13. A bluetooth headset comprising a processor, characterized in that the processor is adapted to implement the method of any of claims 6-9.

14. A bluetooth headset system, comprising:

the slave earphone is used for monitoring and playing a plurality of audio data packets sent by the sound source equipment; and

the main earphone is used for receiving and playing a plurality of audio data packets sent by the sound source equipment;

wherein the slave earphone and the master earphone form a Bluetooth earphone pair; the slave earphone is the bluetooth earphone of claim 12; the master earphone is the bluetooth earphone of claim 13.

15. A bluetooth audio playback system, comprising:

the bluetooth headset system of claim 14; and

and the sound source equipment is used for providing a plurality of audio data packets for the Bluetooth headset system.

In an alternative embodiment, the sound source device may be a device having a bluetooth communication function and an audio data providing function, such as a mobile phone, a tablet computer, a notebook, and a video player.

16. A Bluetooth headset chip having an integrated circuit thereon, wherein the integrated circuit is configured to implement the method of any one of claims 2-5; or/and for implementing the method according to any one of claims 6-9.

17. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program stored in the storage medium is adapted to be executed to implement the method according to any of claims 2-5; or for implementing a method according to any of claims 6-9.