CN114765748B - Bluetooth broadcast network system and communication method thereof - Google Patents
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- CN114765748B CN114765748B CN202110060685.9A CN202110060685A CN114765748B CN 114765748 B CN114765748 B CN 114765748B CN 202110060685 A CN202110060685 A CN 202110060685A CN 114765748 B CN114765748 B CN 114765748B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The main object of the embodiment of the present invention is to provide a communication method of a bluetooth broadcast network system, where the bluetooth broadcast network system includes a first device, a second device, and N third devices, and the method includes: the first device is used as a master device of a first communication mode to establish first broadcast communication links with the second device and the N third devices; triggering a preset condition, and sending the identity information of the second equipment to the first equipment through a second broadcast communication link by the second equipment in a second communication mode; the first device sends the identity information to the N third devices through the first broadcast communication links, and the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information as slave devices. A bluetooth broadcast network system is also provided accordingly. The technical scheme provided by the embodiment of the invention is adopted. Master-slave switching of a plurality of devices in the Bluetooth broadcasting network can be realized.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a bluetooth broadcast network system and a communication method thereof.
Background
The bluetooth broadcasting technology is a unidirectional connectionless data communication mode, in which a data sender broadcasts data on a broadcast channel, and a data receiver scans and receives the data to realize data transmission. Because bluetooth broadcasting has unidirectionality, master-slave equipment has no convenient way to switch roles and cannot be simply realized in a bidirectional communication mode like wifi; in addition, bluetooth broadcasting occupies a large amount of bandwidth, so that BLE scanning operation cannot be performed in the process of classical bluetooth broadcasting, otherwise, the sound quality of bluetooth broadcasting is seriously affected.
Disclosure of Invention
Therefore, a main object of the embodiments of the present invention is to provide a communication method of a bluetooth broadcast network system, which can realize master-slave switching of a plurality of devices in the bluetooth broadcast network.
The embodiment of the invention is realized in such a way that a communication method of a Bluetooth broadcasting network system is provided, wherein the Bluetooth broadcasting network comprises a first device, a second device and N third devices, and the method comprises the following steps:
the first device is used as a master device of a first communication mode to establish first broadcast communication links with the second device and the N third devices;
triggering a preset condition, wherein the second equipment sends the identity information of the second equipment to the first equipment through a second broadcast communication link in a second communication mode;
the first device sends the identity information to the N third devices through the first broadcast communication links, and the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information as slave devices.
Further, the second device transmitting the identity information of the second device to the first device over a second broadcast communication link in a second communication mode includes:
the second device is used as a master device in a second communication mode to establish a second broadcast communication link with the first device, and the identity information of the second device is sent to the first device.
Further, the second device transmitting the identity information of the second device to the first device over a second broadcast communication link in a second communication mode includes:
the second device establishes a second broadcast communication link with the first device as a slave device in a second communication mode, and transmits identity information of the second device to the first device.
Further, the first communication mode is a classical bluetooth broadcast mode, the first broadcast communication link is a classical bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a BLE broadcast link; or (b)
The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
The first broadcast communication link is a classical Bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a BLE broadcast link.
Further, the identity information includes: and the Bluetooth address and the Bluetooth name of the second device.
Further, the method further comprises: the first device establishes an A2DP connection with the first audio source device to receive Bluetooth audio data.
Further, the triggering the predetermined condition includes: and receiving command information from a user for performing master-slave switching, wherein the second equipment establishes A2DP connection with the second audio source equipment and receives Bluetooth audio data.
Further, the triggering the predetermined condition includes: the power of the first device is lower than a predetermined value; or, the connection signal strength between the first device and the audio source device is lower than a predetermined value.
Further, the method further comprises: the first device sends request information to the second device to request the second device to switch to a master device, meanwhile, sends connection information with the first audio source device to the second device, and the second device establishes A2DP connection with the first audio source device according to the connection information.
According to another aspect of the embodiment of the present invention, the embodiment of the present invention further provides a bluetooth broadcast network system, which may implement master-slave switching of a plurality of devices in a bluetooth broadcast network.
The embodiment of the invention is realized in such a way that the Bluetooth broadcasting network system comprises a first device, a second device and N third devices;
the first device is used as a master device in a first communication mode to establish first broadcast communication links with the second device and the N third devices;
the first device is configured to receive a triggering preset condition, and send identity information of the second device to the first device through a second broadcast communication link in a second communication mode;
the first device is further configured to send the identity information to the N third devices through the first broadcast communication link, where the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information.
According to the technical scheme, the embodiment of the invention has the following effects: according to the embodiment of the invention, by utilizing the dual-mode characteristic of Bluetooth, namely a classical Bluetooth mode and a BLE Bluetooth mode, the conversion information of master-slave switching is transmitted to the original master device and other devices, and the slave devices in the broadcast network can be arbitrarily converted into master devices; the master device in the broadcast network can be automatically or manually switched to be the slave device, and other slave devices in the broadcast network can be switched to follow the new master device, and the master device can switch the master device and the slave device according to the active switching control of an external user or based on the signal intensity of the master device and the slave device in the network, so that the user experience of the user in using the Bluetooth broadcast system is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 shows a flowchart of a communication method of a bluetooth broadcast network provided in the present application;
fig. 2 is a schematic diagram of a system architecture of a bluetooth broadcast network provided in the present application;
fig. 3 is a schematic diagram of a system architecture of another bluetooth broadcast network provided in the present application.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will now be described in detail with reference to the drawings and with reference to the following examples, in which the order of steps is only illustrative and can be adjusted without conflict.
As shown in fig. 1, the communication method of a bluetooth broadcast network system provided by the embodiment of the present invention, where the bluetooth broadcast network system includes a first device, a second device, and N third devices, the method includes the following steps:
s101, the first device is used as a master device in a first communication mode to establish first broadcast communication links with the second device and the N third devices;
s102, triggering a preset condition, and sending the identity information of the second equipment to the first equipment through a second broadcast communication link by the second equipment in a second communication mode;
and S103, the first equipment sends the identity information to the N third equipment through the first broadcast communication links, and the N third equipment and the first equipment establish a third broadcast communication link with the second equipment according to the identity information as slave equipment.
An example is described below to specifically describe the above procedure, where the first device, the second device, and the N third devices in the bluetooth broadcast network system all have dual mode functions, that is, have both a conventional classical bluetooth broadcast mode and a BLE bluetooth low energy broadcast mode. In this embodiment, the first communication mode is a classical bluetooth broadcast mode, the first broadcast communication link is a classical bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a classical bluetooth broadcast link. In connection with the bluetooth broadcast network system of fig. 2, the first device establishes a connection with the first audio source device, which may be a wired connection or a connection of a bluetooth A2DP connection or other transmission protocols. The first device obtains the audio data stream of the first audio source device and then uses classical Bluetooth, the first device works in a dual-mode broadcasting mode as a main device, namely classical Bluetooth broadcasting and BLE broadcasting alternately work, wherein the classical Bluetooth broadcasts information such as audio data with large data volume, and the BLE broadcasts information with small data volume. The second device and the N third devices are used as slave devices to work in a classical Bluetooth broadcast receiving mode, and BLE Bluetooth broadcast is not started; the second device triggers a preset condition, for example, after receiving a specific message, such as a specific key message or other trigger conditions, initiates a master-slave switch, at this time, the second device opens the BLE, after receiving the BLE broadcast message of the first device, the second device as a slave device feeds back its identity information to the first device of the master device through the BLE broadcast link, and at the same time, the second device is converted into a master device of classical bluetooth broadcast; after receiving the identity information of the second device, the first device sends the identity information of the second device to N third devices serving as slave devices of the first device in a classical Bluetooth broadcasting mode, informs the identity information of the second device, and informs the N third devices to establish a classical Bluetooth broadcasting link as a master device of the second device of the slave device to establish a new classical Bluetooth broadcasting so as to receive the audio data stream of the second device; n third devices receive the identity information of the second device and then pair with the second device group, and the N third devices are converted into slave devices of the second device; the first device also completes the team of classical Bluetooth broadcasting links with the second device in the role of the slave device, so that the first device turns into the slave device and the second device turns into the master device; thereby completing the master-slave switching, and the broadcasting diagram of the bluetooth broadcasting network system is shown in fig. 3. The identity information of the embodiment of the invention comprises the Bluetooth address and the Bluetooth name of the second device, and the information is mainly used for other slave devices to discover and establish connection with the new master device. It will be understood by those skilled in the art that the first device, the second device, and the third device may be the same bluetooth device, and only for the naming distinction made for describing the embodiments of the present invention, the second device may be the third device, and the third device may also be the second device as a bluetooth device that is switched to the master device.
In another embodiment, the first communication mode is a classical bluetooth broadcast mode, the first broadcast communication link is a classical bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a BLE broadcast link. In combination with the bluetooth broadcast network system of fig. 2, the first device establishes connection with the first audio source device, which may be a wired connection or a bluetooth A2DP connection, and the first device obtains an audio data stream of the first audio source device and then uses classical bluetooth, where the first device works as a master device in a dual-mode broadcast manner, i.e. classical bluetooth broadcast and BLE broadcast work alternately, where classical bluetooth broadcasts information such as audio data with a large data volume, and BLE broadcasts information with a small data volume. The second device and the N third devices are used as slave devices to work in a classical Bluetooth broadcast receiving mode, and BLE Bluetooth broadcast is not started; the second device triggers a predetermined condition that is: and receiving command information from a user for performing master-slave switching, wherein the second equipment establishes A2DP connection with the second audio source equipment and receives Bluetooth audio data. Specifically, the second device in the broadcast network establishes a connection with the second audio source device, and the bluetooth broadcast network wants to play the audio of the second audio source device, so that a master-slave switch is required at this time. The second equipment opens BLE, the second equipment is used as a master equipment to establish a BLE broadcasting link with the first equipment, and the second equipment sends the self identity information to the first equipment of the slave equipment of the BLE broadcasting link through the BLE broadcasting link; after receiving the identity information of the second device, the first device sends the identity information of the second device to the slave devices of the first device, namely N third devices, in a classical Bluetooth broadcasting mode, informs the identity information of the second device, and informs the N third devices to establish a BLE broadcasting link as a master device of the slave devices to establish and BLE broadcasting, so as to receive the data stream of the second device; n third devices receive the identity information of the second device and then pair with the second device group, and the N third devices are converted into slave devices of the second device; thereby completing the master-slave switching, and the broadcasting diagram of the bluetooth broadcasting network is shown in fig. 3. In this embodiment, after the switching is completed, the second device is used as a master device of the BLE broadcast link, and the first device and the N third devices are slave devices of the BLE broadcast link.
As can be understood from the description of the above two embodiments, the first communication mode, the second communication mode, the first broadcast communication link, the second broadcast communication link, and the third broadcast communication link in the operating state are specific in the specific operating state, and may specifically include the following 4 cases:
1. the first communication mode is a classical Bluetooth broadcast mode, the first broadcast communication link is a classical Bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a BLE broadcast link; or (b)
2. The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
3. The first broadcast communication link is a classical Bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
4. The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a BLE broadcast link.
An actual use case provided by the embodiment of the invention is that a group of people go out of the picnic, each person has a sound box, the sound boxes can form a broadcasting network to listen to the audio broadcast by the equipment A (first equipment), the audio source can be Bluetooth audio stream of the Bluetooth connection between the mobile phone of the person A and the equipment A, the person can simultaneously listen to the same music, during the period, the person proposes that the mobile phone of the person B has audible music, please share the song, the mobile phone of the person B and the equipment B (second equipment) establish Bluetooth connection, meanwhile, the equipment B performs a key-press triggering whole master-slave switching process, the equipment B is switched to a master equipment after the switching is completed, and the other equipment becomes slave equipment to listen to the audio sent by the equipment B (second equipment) through Bluetooth broadcasting.
The triggering predetermined condition in the above embodiment is a handover actively initiated by the second device, but in other cases may also be initiated by the first device. For example, when the power of the first device is lower than a predetermined value, the first device may be operated for a short time or insufficient to support continued operation, and if broadcasting as a bluetooth master device would consume more power, the first device may initiate a broadcast command to notify the second device to take over as the master device. The first device sends request information to the second device to request the second device to switch to a master device, and meanwhile sends connection information with the first audio source device to the second device, and the second device establishes A2DP connection with the first audio source device according to the connection information, so that devices in the whole Bluetooth broadcasting network system continue to play the audio data stream played by the original first device. As an example, the triggering predetermined condition may be: the connection signal strength between the first device and the audio source device is lower than a predetermined value, for example, along with the movement of each device in the whole bluetooth broadcast network, for example, the connection between the first device and the audio source device is disconnected after the movement of the first device, or the signal strength is low while the first device is still connected, at this time, the first device is no longer suitable as a broadcast master device to forward the audio source device, at this time, the first device can initiate a broadcast command to inform the second device to take over as the master device, at this time, the second device can take over the first device to establish the connection with the first audio source device, and the devices in the whole bluetooth broadcast network system continue to play the audio data stream played by the original first device.
According to another aspect of the embodiments of the present invention, as shown in fig. 2, the embodiments of the present invention provide a bluetooth broadcast network system, where the bluetooth broadcast network system includes a first device, a second device, and N third devices, where the first device is configured to establish, as a master device in a first communication mode, a first broadcast communication link with the second device and the N third devices;
the first device is configured to receive a triggering preset condition, and send identity information of the second device to the first device through a second broadcast communication link in a second communication mode;
the first device is further configured to send the identity information to the N third devices through the first broadcast communication link, where the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information.
The technical scheme of the bluetooth broadcast network system in the foregoing embodiment is substantially identical to the communication method of the bluetooth broadcast network in the foregoing embodiment, and will not be described herein.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. A communication method of a bluetooth broadcast network system, the bluetooth broadcast network system including a first device, a second device, and N third devices, the method comprising:
the first device is used as a master device of a first communication mode to establish first broadcast communication links with the second device and the N third devices;
triggering a preset condition, wherein the second equipment sends the identity information of the second equipment to the first equipment through a second broadcast communication link in a second communication mode;
the first device sends the identity information to the N third devices through the first broadcast communication links, and the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information as slave devices.
2. The communication method of claim 1, wherein the second device transmitting the identity information of the second device to the first device over a second broadcast communication link in a second communication mode comprises:
the second device is used as a master device in a second communication mode to establish a second broadcast communication link with the first device, and the identity information of the second device is sent to the first device.
3. The communication method of claim 1, wherein the second device transmitting the identity information of the second device to the first device over a second broadcast communication link in a second communication mode comprises:
the second device establishes a second broadcast communication link with the first device as a slave device in a second communication mode, and transmits identity information of the second device to the first device.
4. A communication method according to claim 2 or 3, wherein the first communication mode is a classical bluetooth broadcast mode, the first broadcast communication link is a classical bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a BLE broadcast link; or (b)
The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
The first broadcast communication link is a classical Bluetooth broadcast link, the second communication mode is a BLE broadcast mode, the second broadcast communication link is a BLE broadcast link, and the third broadcast communication link is a classical Bluetooth broadcast link; or (b)
The first communication mode is a BLE broadcast mode, the first broadcast communication link is a BLE broadcast link, the second communication mode is a classical Bluetooth broadcast mode, the second broadcast communication link is a classical Bluetooth broadcast link, and the third broadcast communication link is a BLE broadcast link.
5. The communication method according to claim 4, wherein the identity information includes: and the Bluetooth address and the Bluetooth name of the second device.
6. The communication method according to claim 4, characterized in that the method further comprises: the first device establishes an A2DP connection with the first audio source device to receive Bluetooth audio data.
7. The communication method according to claim 6, wherein the triggering a predetermined condition comprises: and receiving command information from a user for performing master-slave switching, wherein the second equipment establishes A2DP connection with the second audio source equipment and receives Bluetooth audio data.
8. The communication method according to claim 7, characterized in that the method further comprises: the first device sends request information to the second device to request the second device to switch to a master device, meanwhile, sends connection information with the first audio source device to the second device, and the second device establishes A2DP connection with the first audio source device according to the connection information.
9. The communication method according to claim 4, wherein the triggering a predetermined condition comprises: the power of the first device is lower than a predetermined value or the strength of a connection signal between the first device and the audio source device is lower than a predetermined value.
10. A bluetooth broadcast network system comprising a first device, a second device and N third devices, characterized in that,
the first device is used as a master device in a first communication mode to establish first broadcast communication links with the second device and the N third devices;
the first device is configured to receive a triggering preset condition, and send identity information of the second device to the first device through a second broadcast communication link in a second communication mode;
the first device is further configured to send the identity information to the N third devices through the first broadcast communication link, where the N third devices and the first device establish a third broadcast communication link with the second device according to the identity information.
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| CN115866729B (en) * | 2022-11-23 | 2024-06-11 | 东土科技(宜昌)有限公司 | Control method and device for positioning beacon in indoor positioning system |
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| KR101531924B1 (en) * | 2014-07-11 | 2015-06-26 | 현대자동차주식회사 | Method and apparatus for controlling bluetooth load |
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| CN112055315A (en) * | 2019-08-05 | 2020-12-08 | 合肥炬芯智能科技有限公司 | Bluetooth broadcast communication method, system and master device and slave device thereof |
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