Bluetooth communication method, Bluetooth communication system and control terminal thereof

Abstract

The invention discloses a Bluetooth communication method, a Bluetooth communication system and a control terminal thereof, and the Bluetooth communication method comprises the steps: receiving request information of a first task, and determining a target Bluetooth terminal corresponding to the first task according to the request information; judging whether a second task which is being executed exists in the target Bluetooth terminal or not; when the second task exists, judging whether the priority of the first task is lower than that of the second task or not; when the priority of the first task is not lower than that of the second task, controlling the target Bluetooth terminal to stop executing the second task, and controlling the target Bluetooth terminal to execute the first task; and when the priority of the first task is lower than that of the second task, controlling the target Bluetooth terminal to continue executing the second task. By implementing the technical scheme provided by the invention, task switching is automatically realized, so that user requirements are quickly responded.

Description

Technical Field

[0001] The present application relates to the technical field of Bluetooth communication, and in particular to a Bluetooth communication method, a Bluetooth communication system and a control terminal thereof. Background Art

[0002] With the rapid development of modern transportation, motorcycles and other two-wheeled vehicles have become the preferred means of transportation for many urban residents due to their flexibility and convenience. However, the safety hazards and communication barriers of two-wheeled vehicles during driving have always been the main problems faced by drivers and pillion passengers. Traditional communication methods such as gestures or shouting are limited by environmental noise and distance, making it difficult to achieve efficient and clear communication.

[0003] In order to solve the above problems, Bluetooth helmets or Bluetooth headsets have appeared on the market, which realize real-time voice intercom between riders and passengers through wireless communication technology. Bluetooth helmets can not only improve communication efficiency, but also provide voice navigation, music playing and other functions during riding. However, when a Bluetooth helmet or Bluetooth headset is performing a task (for example, the driver is listening to music), if another more urgent task needs to be performed at this time (for example, the rear passenger needs to talk), the user needs to manually close the previous task before starting another task. This method is cumbersome and cannot respond to user needs in a timely manner, affecting the user experience.

[0004] In addition, after the driver and the passenger enter the intercom, the call protocols of the two users' Bluetooth devices may be different. Due to the incompatibility of the call protocols, the sound quality of the high-quality Bluetooth device will be reduced, thereby affecting the user experience of the high-quality Bluetooth device. Summary of the invention

[0005] The technical problem to be solved by the present application is to provide a Bluetooth communication method, a Bluetooth communication system and a control terminal thereof in view of the technical defect of the prior art that the operation is complicated when switching tasks.

[0006] The technical solution adopted by the present application to solve the technical problem is: constructing a Bluetooth communication method, which is applied to a main control module of a control terminal in a Bluetooth communication system, wherein the Bluetooth communication system also includes at least two Bluetooth terminals respectively connected to the control terminal via Bluetooth, and the Bluetooth communication method includes:

[0007] Receive request information of a first task, and determine a target Bluetooth terminal corresponding to the first task according to the request information, wherein the first task includes: playing / stopping an audio task, and opening / closing an intercom task;

[0008] Determine whether the target Bluetooth terminal has a second task being executed, wherein the second task includes: playing / stopping an audio task, and turning on / off an intercom task;

[0009] When the second task exists, determining whether the priority of the first task is lower than the priority of the second task, wherein the priority of the play / stop audio task is lower than the priority of the start / stop intercom task;

[0010] When the priority of the first task is not lower than the priority of the second task, controlling the target Bluetooth terminal to stop executing the second task, and controlling the target Bluetooth terminal to execute the first task;

[0011] When the priority of the first task is lower than the priority of the second task, the target Bluetooth terminal is controlled to continue executing the second task.

[0012] Preferably, when the first task is the intercom on / off task, the step of controlling the target Bluetooth terminal to perform the first task includes:

[0013] Receiving intercom voice information from a first target Bluetooth terminal;

[0014] Respectively obtaining the call protocols of the first target Bluetooth terminal and the second target Bluetooth terminal, and determining whether the call protocol of the first target Bluetooth terminal is the same as the call protocol of the second target Bluetooth terminal;

[0015] When they are not the same, the received intercom voice information is decoded according to the call protocol of the first target Bluetooth terminal to obtain the original voice information, and the original voice information is processed, and the processed original voice information is re-encoded according to the call protocol of the second target Bluetooth terminal, and the re-encoded voice information is sent to the second target Bluetooth terminal.

[0016] Preferably, the first task and the second task further include: a task of making / answering / hanging up a call through a smart terminal, and the priority of the task of making / answering / hanging up a call is higher than the priority of the task of turning on / off intercom;

[0017] Wherein, the intelligent terminal is connected to the control terminal via Bluetooth.

[0018] Preferably, when the first task is the task of turning on / off intercom or the task of making / answering / hanging up a call, the step of controlling the target Bluetooth terminal to perform the first task includes:

[0019] Establishing an HSP or HFP communication link with the target Bluetooth terminal, and executing the first task based on the HSP or HFP communication link.

[0020] Preferably, it also includes:

[0021] When the second task does not exist, the target Bluetooth terminal is controlled to execute the first task.

[0022] Preferably, it also includes:

[0023] When the priority of the first task is lower than the priority of the second task, a prompt message is output.

[0024] The present invention also constructs a control terminal connected to at least two Bluetooth terminals, comprising a main control module, a storage module storing a computer program, and a first Bluetooth module connected to the main control module, wherein the first Bluetooth module is connected to the at least two Bluetooth terminals via Bluetooth respectively;

[0025] The main control module implements the steps of the Bluetooth communication method according to any one of claims 1 to 7 when executing the computer program.

[0026] Preferably, it also includes:

[0027] A second Bluetooth module connected to the main control module, and the second Bluetooth module is connected to at least one intelligent terminal via Bluetooth;

[0028] The first task and the second task further include: a task of making / answering / hanging up a call through a smart terminal, and the priority of the task of making / answering / hanging up a call is higher than the priority of the task of turning on / off intercom.

[0029] The present invention also constructs a Bluetooth communication system, comprising:

[0030] The control terminal described above;

[0031] At least two Bluetooth terminals connected to the control terminal via Bluetooth.

[0032] Preferably, the control terminal further includes:

[0033] A first input module connected to the main control module, used to receive request information of a first task input by a user;

[0034] and / or,

[0035] The bluetooth terminal also includes:

[0036] The second input module is used to receive request information of the first task input by a user.

[0037] Through the technical solution of the present application, at least two Bluetooth terminals are respectively connected to the control terminal via Bluetooth, and when a new request task (first task) is received, the target Bluetooth terminal related to the task is first determined, and then it is determined whether the target Bluetooth terminal currently has a second task being executed. When the second task exists, it is further determined whether the priority of the first task is lower than the priority of the second task. If it is not lower, the second task is stopped and the first task is started; if it is lower, the first task is continued. Therefore, even if the Bluetooth terminal needs to execute another more urgent task when executing a certain task, the user does not need to operate, and the task switching is automatically realized, thereby quickly responding to user needs. In this way, the safety of two-wheeled vehicle driving is guaranteed, and the convenience of voice intercom between the driver and the rear seat passenger is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0039] Figure 1 is a flow chart of a first embodiment of a Bluetooth communication method of the present invention;

[0040] Figure 2 It is a logical structure diagram of the first embodiment of the Bluetooth communication system of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Figure 1 This is a flow chart of the first embodiment of the Bluetooth communication method of the present invention. The Bluetooth communication method of this embodiment is applied to the main control module of the control terminal in the Bluetooth communication system. In addition to the control terminal, the Bluetooth communication system also includes at least two Bluetooth terminals connected to the control terminal via Bluetooth. The control terminal can be, for example, a central control instrument device of a motorcycle or other two-wheeled vehicle, or an independent terminal device; the Bluetooth terminal can be, for example, a Bluetooth helmet or Bluetooth headset of the driver / passenger.

[0043] like Figure 1 As shown, the Bluetooth communication method of this embodiment includes:

[0044] Step S10, receiving the request information of the first task, and determining the target Bluetooth terminal corresponding to the first task according to the request information, wherein the first task includes: playing / stopping audio tasks, opening / closing intercom tasks. In a specific application, the control terminal may have functions such as playing music and navigation, and the playing / stopping audio tasks may, for example, play / stop music, navigation, etc. in the control terminal;

[0045] Step S20, determining whether the target Bluetooth terminal has a second task being executed, if so, executing step S30, wherein the second task includes: playing / stopping an audio task, and turning on / off an intercom task;

[0046] Step S30, determining whether the priority of the first task is lower than the priority of the second task, if so, executing step S50, if not, executing step S40, wherein the priority of the play / stop audio task is lower than the priority of the start / stop intercom task;

[0047] Step S40, controlling the target Bluetooth terminal to stop executing the second task, and controlling the target Bluetooth terminal to execute the first task;

[0048] Step S50: controlling the target Bluetooth terminal to continue executing the second task.

[0049] In the technical solution of this embodiment, at least two Bluetooth terminals are respectively connected to the control terminal via Bluetooth, and when a new request task (first task) is received, the target Bluetooth terminal related to the task is first determined, and then it is determined whether the target Bluetooth terminal currently has a second task being executed. When the second task exists, it is further determined whether the priority of the first task is lower than the priority of the second task. If it is not lower, the second task is stopped and the first task is started; if it is lower, the first task is continued. Therefore, even if the Bluetooth terminal needs to execute another more urgent task when executing a certain task, the user does not need to operate, and the task switching is automatically realized, thereby quickly responding to user needs. In this way, the safety of two-wheeled vehicle driving is guaranteed, and the convenience of voice intercom between the driver and the rear seat passenger is improved.

[0050] Furthermore, in an optional embodiment, after step S30, the method further includes: when the priority of the first task is lower than the priority of the second task, outputting a prompt message to remind the user that it is currently impossible to automatically switch to the requested task.

[0051] Further, in order to solve the problem of incompatibility of call protocols of the Bluetooth terminals of the two intercom users, in an optional embodiment, when the first task is to turn on / off the intercom task, the step of controlling the target Bluetooth terminal to perform the first task in step S40 includes:

[0052] Receiving intercom voice information from a first target Bluetooth terminal;

[0053] Respectively obtaining the call protocols of the first target Bluetooth terminal and the second target Bluetooth terminal, and determining whether the call protocol of the first target Bluetooth terminal is the same as the call protocol of the second target Bluetooth terminal;

[0054] If they are not the same, the received intercom voice information is decoded according to the call protocol of the first target Bluetooth terminal to obtain the original voice information, and the original voice information is processed, and the processed original voice information is re-encoded according to the call protocol of the second target Bluetooth terminal, and the re-encoded voice information is sent to the second target Bluetooth terminal.

[0055] In this embodiment, when the call protocols between the target Bluetooth terminals are different, after receiving the intercom voice information from the first target Bluetooth terminal, the control terminal does not directly send it to the second target Bluetooth terminal, but first decodes, processes, and re-encodes the intercom voice information to make it conform to the call protocol of the second target Bluetooth terminal, and then sends it to the second target Bluetooth terminal. In this way, even if the call protocols between the target Bluetooth terminals are different, the sound quality of the high-quality Bluetooth terminal will not be reduced, thereby avoiding affecting the user experience of the high-quality Bluetooth terminal.

[0056] In a specific example, different communication protocols are used between the primary helmet and the secondary helmet, that is, different voice signal encoding methods are used. For example, the primary helmet uses 16K-MSBC voice signal encoding, and the secondary helmet uses 8K-CVSD voice signal encoding.

[0057] When the main helmet needs to send intercom voice information to the secondary helmet, the main helmet first sends the intercom voice information to the control terminal, and the main control module of the control terminal processes the intercom voice information. Specifically, the intercom voice information is first decoded, that is, the 16K-MSBC encoded voice signal is decoded into the original voice signal, and the decoding process involves restoring the compressed voice data to the original sampled data. Then, the sampled data is downsampled, that is, the voice data with a sampling rate of 16kHz is downsampled to 8kHz voice data; then the downsampled data is re-encoded, that is, the downsampled 8kHz voice data is re-encoded into 8K-CVSD format; finally, the re-encoded data is sent to the secondary helmet.

[0058] Similarly, the intercom voice information sent by the secondary helmet to the main helmet also needs to be processed by the main control module of the control terminal. Specifically, the intercom voice information sent by the secondary helmet is first decoded, that is, the 8K-CVSD encoded voice data is decoded into the original voice data with a sampling rate of 8kHz; then the original voice data is upsampled, that is, the decoded 8kHz voice data is upsampled to voice data with a sampling rate of 16kHz; finally, the voice data is re-encoded, that is, the upsampled 16kHz voice data is encoded into voice data in 16K-MSBC format.

[0059] Furthermore, in an optional embodiment, the control terminal is also connected to at least one smart terminal via Bluetooth, and the smart terminal is, for example, a mobile phone of a driver or a passenger. The first task and the second task also respectively include: tasks of making / answering / hanging up calls through the smart terminal, and the priority of the tasks of making / answering / hanging up calls is higher than the priority of the tasks of turning on / off the intercom. In this embodiment, since the control terminal is also connected to the smart terminal via Bluetooth, the tasks that can be executed by the Bluetooth terminal include not only tasks of turning on / off the intercom and playing / stopping audio, but also tasks of making / answering / hanging up calls through the smart terminal. In addition, the smart terminal may also have functions such as playing audio and navigating, so the tasks of playing / stopping audio may also come from the smart terminal.

[0060] In addition, when the tasks that can be executed by the smart terminal include: play / stop audio tasks, turn on / off intercom tasks, and make / answer / hang up phone calls, the priorities of these tasks can be pre-set as: the highest level is the make / answer / hang up phone calls task; the second highest level is the turn on / off intercom task; the lowest level is the play / stop audio task, such as play / stop / previous / next music, play / stop navigation.

[0061] It should also be noted that if the requested first task has the same priority as the second task being executed, before switching tasks, it is also necessary to determine whether the previous second task is a predecessor task of the subsequent first task. Regarding predecessor tasks, it should be noted that the task of turning on the intercom is the predecessor task of the task of turning off the intercom, the task of making / answering a call is the predecessor task of the task of hanging up the call, the task of playing music is the predecessor task of the task of stopping / playing the previous song / playing the next song, and the task of playing navigation is the predecessor task of the task of stopping navigation. Task switching is only performed when the second task is the predecessor task of the first task, otherwise, even if the first task and the second task have the same priority, switching is not performed. For example, assuming that the previous second task is a task of playing music, and the first task received later is a task of stopping navigation, in this case, although the first task and the second task have the same priority, the second task is not a predecessor task of the first task, so the request of the subsequent task can only be ignored, and the task switching will not be performed.

[0062] Further, in an optional embodiment, when the first task is a task of turning on / off an intercom or a task of making / answering / hanging up a call, the step of controlling the target Bluetooth terminal to perform the first task in step S40 includes:

[0063] Establishing an HSP or HFP communication link with the target Bluetooth terminal, and executing the first task based on the HSP or HFP communication link.

[0064] Further, in an optional embodiment, after step S20, when the second task does not exist, the target Bluetooth terminal is controlled to execute the first task.

[0065] Moreover, when the first task is a play / stop audio task, the step of controlling the target Bluetooth terminal to execute the first task in step S40 includes:

[0066] An A2DP communication link is established with the target Bluetooth terminal, and the first task is performed based on the A2DP communication link.

[0067] In a specific embodiment, the smart terminal establishes a Bluetooth connection with the Bluetooth module in the control terminal, and the smart terminal uses different Bluetooth connection protocols when performing different tasks, among which HSP or HFP is used for intercom, telephone and other call tasks; A2DP (Advanced Audio Distribution Profile) is used for audio transmission tasks. For example, in an application, the intercom call between the main Bluetooth helmet and the secondary Bluetooth helmet, and the telephone call between the main helmet or the secondary helmet and other mobile phone users adopt the HFP Bluetooth connection protocol; the music playing between the mobile phone and the Bluetooth helmet adopts the A2DP Bluetooth connection protocol.

[0068] Figure 2 : is a logical structure diagram of the first embodiment of the Bluetooth communication system of the present invention. The Bluetooth communication system of this embodiment includes a control terminal 10 and at least two Bluetooth terminals 21, ..., 22 respectively connected to the control terminal via Bluetooth. Among them, the control terminal 10 includes a main control module 11, a storage module 12 storing a computer program, and a first Bluetooth module 13 connected to the main control module 11, and the first Bluetooth module is respectively connected to at least two Bluetooth terminals 21, ..., 22 via Bluetooth. The main control module 11 implements the steps of the Bluetooth communication method described above when executing the computer program. It should be understood that the above-mentioned control terminal embodiment and the Bluetooth communication method embodiment belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment, and the technical features in the method embodiment are correspondingly applicable in the control terminal embodiment, which will not be repeated here.

[0069] Furthermore, if Figure 2 As shown, the control terminal 10 also includes a second Bluetooth module 14 connected to the main control module 11. The Bluetooth communication system also includes an intelligent terminal 30 connected to the second Bluetooth module 14 via Bluetooth. Of course, in other embodiments, the second Bluetooth module 14 can be connected to multiple intelligent terminals. The first task and the second task also include: dialing / answering / hanging up the phone through the intelligent terminal 30, and the priority of the dialing / answering / hanging up the phone task is higher than the priority of the task of turning on / off the intercom.

[0070] Furthermore, in an optional embodiment, the control terminal further includes a first input module connected to the main control module, the first input module is, for example, a key, etc., and is used to receive the request information of the first task input by the user. In another optional embodiment, the Bluetooth terminal further includes a second input module, the second input module is, for example, a key, etc., and is used to receive the request information of the first task input by the user.

[0071] In a specific embodiment, there are two ways to enter the front and rear intercom (intercom between the driver and the passenger): 1. The driver first sends the AT+AUDROUTE=4 command through the first input module of the control terminal to trigger the front and rear intercom. After receiving the command, the main control module controls the first Bluetooth module to establish HFP connections with the main and auxiliary Bluetooth helmets respectively. 2. The passenger triggers the second input module on the auxiliary Bluetooth helmet. At this time, the auxiliary Bluetooth helmet sends the command to the first Bluetooth module through the Bluetooth channel, and the first Bluetooth module forwards it to the main control module. The main control module controls the first Bluetooth module to establish HFP connections with the main and auxiliary Bluetooth helmets. In addition, it should be noted that if the front and rear intercom command is triggered when the current idle time is, then the HFP protocol can be directly switched; if the front and rear intercom command is triggered when playing music, then the music playback needs to be paused or ended, and then switched to the HFP protocol; if the front and rear intercom command is triggered in the call state, then the HFP protocol cannot be switched, and feedback can be given to the corresponding device.

[0072] In a specific embodiment, there are two ways of intercom before and after exiting: 1. The driver first sends the AT+AUDROUTE=0 instruction through the first input module of the control terminal. After receiving the instruction, the main control module controls the first Bluetooth module to disconnect the HFP connection with the main and auxiliary Bluetooth helmets respectively. 2. The passenger triggers the second input module on the auxiliary Bluetooth helmet. At this time, the auxiliary Bluetooth helmet sends the instruction to the first Bluetooth module through the Bluetooth channel, and the first Bluetooth module forwards it to the main control module. The main control module controls the first Bluetooth module to disconnect the HFP connection with the main and auxiliary Bluetooth helmets. In addition, it should be noted that if the smart terminal receives an incoming call in the intercom state, the main control module can send AT+HFPANSW to answer the call and send AT+AUDROUTE=0 to end the intercom. Of course, AT+HFPCHUP can also be sent to reject the call. If a call needs to be made in the intercom state, the main control module can send AT+HFPDIAL=10010 to make a call and send AT+AUDROUTE=0 to end the intercom.

[0073] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A Bluetooth communication method, applied to a main control module of a control terminal in a Bluetooth communication system, wherein the Bluetooth communication system further comprises at least two Bluetooth terminals respectively connected to the control terminal via Bluetooth, characterized in that: The Bluetooth communication method comprises: Receive request information of a first task, and determine a target Bluetooth terminal corresponding to the first task according to the request information, wherein the first task includes: playing / stopping an audio task, and opening / closing an intercom task; Determine whether the target Bluetooth terminal has a second task being executed, wherein the second task includes: playing / stopping an audio task, and turning on / off an intercom task; When the second task exists, determining whether the priority of the first task is lower than the priority of the second task, wherein the priority of the play / stop audio task is lower than the priority of the start / stop intercom task; When the priority of the first task is not lower than the priority of the second task, controlling the target Bluetooth terminal to stop executing the second task, and controlling the target Bluetooth terminal to execute the first task; When the priority of the first task is lower than the priority of the second task, the target Bluetooth terminal is controlled to continue executing the second task.

2. The Bluetooth communication method according to claim 1, characterized in that: When the first task is the intercom on / off task, the step of controlling the target Bluetooth terminal to perform the first task includes: Receiving intercom voice information from a first target Bluetooth terminal; Respectively obtaining the call protocols of the first target Bluetooth terminal and the second target Bluetooth terminal, and determining whether the call protocol of the first target Bluetooth terminal is the same as the call protocol of the second target Bluetooth terminal; When they are not the same, the received intercom voice information is decoded according to the call protocol of the first target Bluetooth terminal to obtain the original voice information, and the original voice information is processed, and the processed original voice information is re-encoded according to the call protocol of the second target Bluetooth terminal, and the re-encoded voice information is sent to the second target Bluetooth terminal.

3. The Bluetooth communication method according to claim 1 or 2, characterized in that: The first task and the second task further include: a task of making / answering / hanging up a call through a smart terminal, and the priority of the task of making / answering / hanging up a call is higher than the priority of the task of turning on / off intercom; Wherein, the intelligent terminal is connected to the control terminal via Bluetooth.

4. The Bluetooth communication method according to claim 3, characterized in that: When the first task is the task of turning on / off intercom or the task of making / answering / hanging up a call, the step of controlling the target Bluetooth terminal to perform the first task includes: Establishing an HSP or HFP communication link with the target Bluetooth terminal, and executing the first task based on the HSP or HFP communication link.

5. The Bluetooth communication method according to claim 1, characterized in that: Also includes: When the second task does not exist, the target Bluetooth terminal is controlled to execute the first task.

6. The Bluetooth communication method according to claim 1, characterized in that: Also includes: When the priority of the first task is lower than the priority of the second task, a prompt message is output.

7. A control terminal connected to at least two Bluetooth terminals, characterized in that: It comprises a main control module, a storage module storing a computer program, and a first Bluetooth module connected to the main control module, wherein the first Bluetooth module is connected to the at least two Bluetooth terminals via Bluetooth respectively; The main control module implements the steps of the Bluetooth communication method according to any one of claims 1 to 6 when executing the computer program.

8. The control terminal according to claim 7, characterized in that: Also includes: A second Bluetooth module connected to the main control module, and the second Bluetooth module is connected to at least one intelligent terminal via Bluetooth; The first task and the second task further include: a task of making / answering / hanging up a call through a smart terminal, and the priority of the task of making / answering / hanging up a call is higher than the priority of the task of turning on / off intercom.

9. A Bluetooth communication system, characterized in that: include: The control terminal according to claim 7 or 8; At least two Bluetooth terminals connected to the control terminal via Bluetooth.

10. The Bluetooth communication system according to claim 9, characterized in that: The control terminal also includes: A first input module connected to the main control module, used to receive request information of a first task input by a user; and / or, The bluetooth terminal also includes: The second input module is used to receive request information of the first task input by a user.

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