CN105681886B - Bluetooth connection control method, device and the playback equipment of playback equipment - Google Patents

Abstract

The invention discloses a bluetooth connection control method and device for playing equipment in an audio and video playing system, and the playing equipment. The method includes: the main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device, wherein the first playback device changes the bluetooth state from a visible state to a hidden state after receiving audio and video data through bluetooth State; the main playback device selects a playback device from playback devices other than the first playback device as the second playback device; the main playback device sends the first Bluetooth start command to the second playback device, To instruct the second playback device to turn on Bluetooth, and set the Bluetooth state to a visible state. The present invention can prevent the first playback device from being connected to other audio source devices to interrupt playing the audio and video data being played, and at the same time ensure that other audio source devices can also be connected to the audio and video playback system.

Description

Bluetooth connection control method and device for playback device and playback device

technical field

Embodiments of the present invention relate to audio and video playback system technology, and in particular to a Bluetooth connection control method, device and playback device for a playback device in an audio and video playback system.

Background technique

The audio and video playback system is composed of multiple playback devices, and the multiple playback devices will form a private network, and multiple playback devices can exchange control information and audio and video data through the private network. In the private network of the audio and video playback system, at least one playback device is connected to the router, for example, connected to the router through the wired method shown in Figure 1, or connected to the router through the wireless method shown in Figure 2, the playback device is The main playback device of the audio and video playback system, and other playback devices are slave playback devices. The main playback device is the bridge between the audio and video playback system and the external network, and is also the control core of the entire audio and video playback system.

After the user establishes a Bluetooth connection with a playback device in the audio and video playback system through the audio source device, the audio and video data in the audio source device is sent to one or more playback devices through Bluetooth for playback. The playback device that the user is using will cause the user's music playback to be interrupted, causing disturbance to the user.

Contents of the invention

In view of this, an embodiment of the present invention provides a Bluetooth connection control method and device for a playback device in an audio and video playback system, and a playback device, so as to prevent the playback device from interrupting the playback of audio and video data being played.

In a first aspect, an embodiment of the present invention provides a Bluetooth connection control method for a playback device in an audio and video playback system, the method comprising:

The main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device, wherein the first playback device changes the bluetooth state from a visible state to a hidden state after receiving audio and video data through bluetooth;

The main playback device selects a playback device from the playback devices other than the first playback device as the second playback device;

The main playback device sends a first Bluetooth enable command to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth state to a visible state.

In the second aspect, the embodiment of the present invention also provides a Bluetooth connection control device for a playback device in an audio and video playback system, the device comprising:

The notification receiving module is configured in the main playback device of the audio and video playback system, and is used to receive the notification of the bluetooth state change of the first playback device, wherein, after the first playback device receives the audio and video data through bluetooth, the bluetooth state Change from visible state to hidden state;

The second playback device selection module is used to select a playback device from playback devices other than the first playback device as the second playback device;

The start command sending module is used to send the first bluetooth start command to the second playback device to instruct the second play device to turn on the bluetooth and set the bluetooth state to a visible state.

In the third aspect, the embodiment of the present invention also provides a playback device, which integrates the Bluetooth connection control device of the playback device in the audio and video playback system described in any embodiment of the present invention.

According to the technical scheme of the embodiment of the present invention, after the first playback device receives the audio and video data through Bluetooth, the Bluetooth state is changed from the visible state to the hidden state, which can prevent the first playback device from being connected by other audio source devices to interrupt the playback of the currently playing audio. Audio and video data, and the Bluetooth of the second playback device can receive and play the audio and video data of other audio source devices, so that other audio source devices can also be connected to the audio and video playback system.

Description of drawings

Fig. 1 is the schematic diagram of the wired connection between the main playback device and the router of the audio and video playback system in the prior art;

Fig. 2 is the schematic diagram of the wireless connection between the main playback device and the router of the audio and video playback system in the prior art;

3 is a schematic structural diagram of a playback device in a Bluetooth connection control method for a playback device in an audio and video playback system provided by an embodiment of the present invention;

4 is a flowchart of a Bluetooth connection control method for a playback device in an audio and video playback system provided by Embodiment 1 of the present invention;

5 is a flowchart of a Bluetooth connection control method for a playback device in an audio and video playback system provided by Embodiment 2 of the present invention;

6 is a flowchart of a Bluetooth connection control method for a playback device in an audio and video playback system provided by Embodiment 3 of the present invention;

FIG. 7 is a schematic structural diagram of a Bluetooth connection control device for a playback device in an audio and video playback system according to Embodiment 4 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

In the embodiment of the present invention, the playback devices in the audio and video playback system connect the playback devices distributed in different regions through a self-organized private network. The audio and video playback system can be connected to the Internet to obtain Internet music resources. In addition, the audio and video playback system is generally controlled by control terminals such as smart phones, and the smart phone is connected to the audio and video playback system through wireless communication technologies such as WIFI (WIreless-Fidelity, wireless fidelity); after installing special control software, Control terminals such as smart phones can access and control the audio and video playback system, and can push music or video on the Internet to the audio and video playback system for playback. In addition to playing music or video on the Internet, the audio and video playback system can also play music or video stored locally, such as music files or video files stored in the internal storage of the playback device or external storage (such as U disk), such as playing Music or video stored on the smart terminal, and music files or video files on other accessible devices (such as NAS servers) in the local area network, and so on. Among them, NAS (Network Attached Storage, Network Attached Storage) is a technology that integrates distributed and independent data into a large-scale, centralized management data center, so as to facilitate access to different hosts and application servers.

The audio and video playback system includes a master playback device and a slave playback device. The master playback device accesses the Internet or a local area network, thereby obtaining audio and video data or audio and video files from the Internet or a local area network, and sends them to the slave playback devices for playback. In addition, when each control terminal (such as a smart phone) is connected to the audio and video playback system, it is actually the main playback device connected to the audio and video playback system. The main playback device receives control commands from the control terminal to coordinate and control the entire audio and video playback system. The work of the playback system, and return the status information of the audio and video playback system and each playback device to the control terminal. The master playback device exchanges control commands and status information with other slave playback devices in the audio and video playback system through a private network. The master playback device can realize synchronous playback of multiple playback devices through these control commands and status information.

Figure 1 is a network construction method. As shown in Figure 1, playback device 1, playback device 2, playback device 3, and playback device 4 form an audio and video playback system, and communication connections are established between them in a wireless manner (usually using MESH network technology). Wherein, the playback device 1 establishes a wired connection with the wireless router, and the wireless router establishes a connection with the Internet or a local area network. The playback device 1 that establishes a wired connection with the wireless router is the master playback device of the audio and video playback system, and the other playback devices are slave playback devices. After an intelligent terminal (such as a smart phone, a tablet computer or a computer) installed with special application software is connected to the wireless router, it can access and control the playback equipment in the private network of the audio and video playback system. The user selects the song that wants to play at smart terminal, and smart terminal can send the information of this song (such as the network music server that song title, song deposits and corresponding same resource locator) to playback device 1; The song information is connected to the network music server to download the audio and video data of the song. Playback device 1 decodes the downloaded music data and plays it by itself. It also sends the decoded audio and video data to playback device 2, playback device 3, and playback device 4 in the private network, so that the four playback devices can play the same song synchronously. song. In Figure 2, the connection mode between the main playback device and the wireless router is a wireless connection, and other functions are the same as those in Figure 1.

Fig. 3 is a schematic structural diagram of the playback device in the method for controlling the Bluetooth connection of the playback device in the audio and video playback system provided by an embodiment of the present invention. As shown in FIG. 3 , the playback device of the audio and video playback system includes a processor 310 , a Bluetooth module 320 , a network interface 330 , an audio and video amplification module 340 , a speaker 350 and a memory 360 .

Wherein, the processor 310 is the core of the playback device, executes the control program, communicates with the surrounding functional modules, and coordinates and controls the work of each functional module. For example, the processor 310 sends the obtained audio and video data to the audio and video amplification module 340 after decoding or digital/analog conversion.

The bluetooth module 320 is used to implement bluetooth communication, so that the playback device can establish a connection with a bluetooth-enabled device (such as a smart phone) through bluetooth technology to obtain audio and video data or control data. The Bluetooth module transmits the obtained audio and video data and control data to the processor 310, and also sends the audio and video data and control data transmitted by the processor 310 to other Bluetooth devices.

The network interface 330 may be a wired network interface, or a wireless network interface conforming to the 802.11 specification. The processor 310 can be connected to the Internet through the network interface 330 to obtain network streaming music data. Through the network interface 330, especially in the form of a wireless network, multiple playback devices can form a wireless audio and video playback system to realize synchronous playback of music. Usually, each control terminal is also connected to the audio and video playback system through a wireless network (such as WIFI), and operates and controls the audio and video playback system and playback devices in the system.

The audio and video amplification module 340 is used to amplify the power of the analog audio and video signals sent by the processor 310 to drive the speaker 350 to produce sound.

The speaker 350 is a sound restoration component, and the number of the speaker 350 can be one or more.

The storage 360 is used to store programs executed by the processor 310 and some configuration data of the audio and video playback system, such as network connection data, volume information, group information, and a list of played songs.

Wherein, the playback device can establish a Bluetooth connection with various audio source devices with Bluetooth function through the Bluetooth module integrated in the playback device, and receive audio and video data transmitted by the audio source device. This has been widely used in various bluetooth speakers and bluetooth headsets. In the audio and video playback system, the playback device that receives the audio and video data from the audio source device can not only play the audio and video data itself, but also transmit the received audio and video data through the private network of the audio and video playback system to the Other playback devices in the audio and video playback system, so that multiple playback devices can play music synchronously. For example, the user pairs and connects his smart phone with the Bluetooth module of a playback device in the audio and video playback system, and sets multiple playback devices (such as 3 playback devices) in the audio and video playback system to play music together or Video, when the user turns on the music player (such as QQ music) on the smart phone to play songs, multiple playback devices in the above-mentioned audio and video playback system will synchronously play the songs selected to play on the music player.

Embodiment one

Fig. 4 is a flow chart of a Bluetooth connection control method of a playback device in an audio and video playback system provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of controlling the Bluetooth connection of a playback device in an audio and video playback system. It can be executed by the bluetooth connection control device of the playback device in the audio and video playback system, and the bluetooth connection control device of the playback device in the audio and video playback system is configured in the main playback device of the audio and video playback system. The method specifically includes the following steps:

Step 410, the main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device, wherein the first playback device changes the bluetooth state from the visible state to the hidden state after receiving the audio and video data through bluetooth .

Wherein, after the first playback device turns on the bluetooth, the bluetooth state remains in the visible state. When the user's audio source device (such as an MP3 player or a mobile phone) turns on Bluetooth and searches for the surrounding playback devices, the first playback device whose Bluetooth status is in the visible state can be found, establishes a Bluetooth connection with the first playback device, and sends the audio to the first playback device. The video data is transmitted to the first playback device. After the first playback device receives the audio and video data of the audio source device through the Bluetooth connection, it plays the audio and video data, and can also send the audio and video data to other playback devices in the playback group to which the first playback device belongs, The playing equipment in this playing group synchronously plays described audio-video data, and simultaneously described first playing equipment changes bluetooth state from visible state to hidden state (invisible state), but still keeps the bluetooth connection with this sound source equipment, thereby It can prevent other users' audio source devices from being connected to the first playback device via bluetooth to interrupt the user's music playing. After the bluetooth state of the first playback device changes to the hidden state, a notification of the change of the bluetooth state is sent to the main playback device of the audio and video playback system. Wherein, the first playback device may be a main playback device.

Wherein, the audio and video playback system is composed of multiple playback devices, and the entire audio and video playback system can work as a whole, that is, all playback devices in the audio and video playback system play the same song synchronously. In addition, the playback devices in the audio and video playback system can also form several playback groups, and each playback group plays different music. For example, there are 6 playback devices in an audio and video playback system, including playback device A, playback device B, playback device C, playback device D, playback device E, and playback device F. Among them, playback device A and playback device B form a playback device Group 1, playback device C and playback device D form a playback group 2, and playback device E and playback device F form a playback group 3. Playback devices A and B in Playgroup 1 play the same song or video synchronously, Playback Devices C and D in Playgroup 2 play the same song or video synchronously, and Playback Devices E and F in Playgroup 3 play the same song or video synchronously. songs or videos, but play group 1, play group 2 and play group 3 are independent of each other, they can play the same song or video, or play different songs or videos respectively. Each playback group can be controlled by different users or by the same user.

Step 420, the main playback device selects a playback device from the playback devices other than the first playback device as the second playback device.

After the main playback device receives the notification of the bluetooth state change of the first playback device, it needs to select a playback device from the playback devices other than the first playback device to turn on the bluetooth, and this playback device is used as the second playback device, so that the audio The video playback system can receive the transmission of audio and video data from other users' audio source devices.

Step 430, the main playback device sends a first Bluetooth enable command to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth state to a visible state.

After the main playback device selects the second playback device, it sends a first Bluetooth enable command to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth state to a visible state. After the second playback device receives the first bluetooth start command, it turns on its own bluetooth module to turn on the bluetooth, and sets the bluetooth state to a visible state, so as to display the first bluetooth when it is searched by other user's sound source devices. Two playback devices, so as to receive audio and video data of other users' audio source devices through Bluetooth. Wherein, the second playback device may be the main playback device, but the first playback device and the second playback device are not the main playback device at the same time.

In the audio and video playback system, the Bluetooth status of a playback device is kept visible at any time, so that the audio and video data transmitted by the user's audio source device can be received through Bluetooth.

In the technical solution of this embodiment, after the first playback device receives the audio and video data through Bluetooth, the Bluetooth state is changed from the visible state to the hidden state, and the main playback device in the audio and video playback system receives audio and video data from other than the first playback device. One of the playback devices is selected as the second playback device, and a first Bluetooth start command is sent to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth status to a visible state. By changing the Bluetooth state of the first playback device to a hidden state, it can prevent the first playback device from being connected by other audio source devices to interrupt the playback of the audio and video data being played, and turn on the Bluetooth of the second playback device to receive other audio source devices. Audio and video data and play, so that other audio source equipment can also be connected to the audio and video playback system.

On the basis of the above technical solution, the main playback device randomly selects a playback device from playback devices other than the first playback device, and preferably includes as the second playback device:

The main playback device randomly selects a playback device from the playback devices in the non-playing state except the first playback device as the second playback device.

Since the first playback device receives the audio and video data and will play the audio and video data, therefore, in order to avoid interrupting the playback of the audio and video data of the playback device, it is necessary to prioritize the playback from the non-playing state other than the first playback device. Select a playback device from Devices as the second playback device. Selecting the second playback device from the playback devices in the non-playing state can avoid interruption of the audio and video data being played by the playback device.

On the basis of the above technical solution, the main playback device randomly selects a playback device from playback devices other than the first playback device, and preferably includes as the second playback device:

The main playback device sends a signal detection command to a playback device other than the first playback device to instruct the playback device other than the first playback device to detect and set the bluetooth signal strength of the audio source device;

The main playback device acquires the Bluetooth signal strength from playback devices other than the first playback device, and determines the playback device whose detected Bluetooth signal strength is greater than the signal strength threshold;

The main playback device randomly selects a playback device from the playback devices whose detected Bluetooth signal strength is greater than the signal strength threshold as the second playback device.

The Bluetooth signal strength of the set audio source device is detected by each playback device other than the first playback device, and the main device comprehensively compares to determine the playback device whose detected Bluetooth signal strength is greater than the signal strength threshold, and from the detected Bluetooth signal Randomly select a playback device from the playback devices whose strength is greater than the signal strength threshold as the second playback device, so as to receive the audio and video data transmitted by the set audio source device at a faster speed.

Embodiment two

Fig. 5 is a flow chart of a Bluetooth connection control method for playback devices in an audio and video playback system provided by Embodiment 2 of the present invention. On the basis of Embodiment 1, this embodiment adds the feature of enabling the Bluetooth of the first playback device , including the following steps:

Step 510, when the playback device in the audio and video playback system has not established a Bluetooth connection with the audio source device, the main playback device selects a playback device from the audio and video playback system as the first playback device.

In an audio and video playback system composed of multiple playback devices, if no audio source device is connected to any playback device of the audio and video playback system through Bluetooth, only one Bluetooth module of the playback device in the audio and video playback system can maintain In the open state, the Bluetooth modules of other playback devices remain closed, so that the audio and video data transmitted by the audio source device can be received by the Bluetooth-enabled playback device. Therefore, the main playback device only needs to randomly select a playback device in the audio and video playback system as the first playback device.

Step 520, the main playback device sends a second Bluetooth enable command to the first playback device to instruct the first playback device to turn on Bluetooth and set the Bluetooth status to a visible state; at the same time, send a Bluetooth shutdown command to the audio and video player other playback devices in the system to instruct the other playback devices to turn off bluetooth.

After selecting the first playback device, the main playback device will send a second bluetooth start command to the first playback device to instruct the first playback device to turn on bluetooth and set the bluetooth state to a visible state; The playback devices other than the first playback device in the system send the Bluetooth off command to instruct the playback devices other than the first playback device to turn off the Bluetooth. Wherein, the first bluetooth opening command and the second bluetooth opening command are both bluetooth opening commands, but the objects sent by the main playback device are different, and the names are different in order to distinguish them. In fact, the contents of the bluetooth opening commands are the same. Both include turning on bluetooth and setting the bluetooth state to visible.

Step 530, the main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device, wherein the first playback device changes the bluetooth state from the visible state to the hidden state after receiving the audio and video data through bluetooth .

Step 540, the main playback device selects a playback device from the playback devices other than the first playback device as the second playback device.

Step 550, the main playback device sends a first Bluetooth enable command to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth state to a visible state.

In the technical solution of this embodiment, on the basis of Embodiment 1, when the playback device in the audio and video playback system does not establish a Bluetooth connection with the audio source device, the main playback device selects the audio from the audio and video playback system. A playback device, as the first playback device, sends a second bluetooth opening command to the first playback device to instruct the first playback device to turn on bluetooth and set the bluetooth state to a visible state; Other playback devices in the video playback system to instruct the other playback devices to turn off bluetooth, keep the bluetooth of one playback device in the audio and video playback system to be turned on and the bluetooth state to be visible, so that users can connect the audio source device through bluetooth The audio and video data is transmitted to the audio and video playback system for playback, and the Bluetooth availability of the audio and video playback system is maintained.

Embodiment three

6 is a flow chart of a Bluetooth connection control method for playback devices in an audio and video playback system provided by Embodiment 3 of the present invention. On the basis of the above-mentioned embodiments, this embodiment adds the SSID (ServiceSet Identifier, service set identifier) and password characteristics, specifically include the following steps:

Step 610, the main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device, wherein the first playback device changes the bluetooth state from the visible state to the hidden state after receiving the audio and video data through bluetooth .

Step 620, the main playback device selects a playback device from the playback devices other than the first playback device as the second playback device.

Step 630, the main playback device sends a first Bluetooth enable command to the second playback device to instruct the second playback device to turn on Bluetooth and set the Bluetooth state to a visible state.

Step 640, after the main playback device receives the SSID and password of the first playback device sent by the audio source device, it broadcasts in the audio and video playback system, and receives the first playback device with the SSID and password After the response, return the response to the audio source device.

When the user knows the SSID and password of the first playback device whose bluetooth status is hidden, and wants to continue using the first playback device, he can input the SSID and password of the first playback device on the audio source device, and the audio source device can pass wireless The network sends the SSID and password of the first playback device to the main playback device of the audio and video playback system. After the main playback device receives the SSID and password of the first playback device sent by the audio source device, it broadcasts the SSID and password in the audio and video playback system. After the playback device in the audio and video playback system receives the broadcast, it communicates with itself The SSID and password are matched, and the first playback device that matches successfully responds. The main playback device can determine that the SSID and password are the SSID and password of the first playback device, and then return it to the audio source device. The audio source device can directly communicate with the first playback device. A playback device establishes a Bluetooth connection.

In the technical solution of this embodiment, on the basis of Embodiment 1, after the main playback device receives the SSID and password of the first playback device sent by the audio source device, it broadcasts in the audio and video playback system, the first playback device responds, and the main playback device The device returns the response to the sound source device, and the sound source device can directly establish a Bluetooth connection with the first playback device whose Bluetooth status is hidden, so that the user can use the first playback device.

Embodiment four

Fig. 7 is a schematic structural diagram of a Bluetooth connection control device for a playback device in an audio and video playback system provided in Embodiment 4 of the present invention. As shown in Fig. 7, the Bluetooth connection of the playback device in the audio and video playback system described in this embodiment The control device includes: a notification receiving module 710 , a second playback device selecting module 720 and a Bluetooth start command sending module 730 .

Wherein, the notification receiving module is configured in the main playback device of the audio and video playback system, and is used to receive the notification of the bluetooth state change of the first playback device, wherein, after the first playback device receives the audio and video data through bluetooth, it will The bluetooth state changes from the visible state to the hidden state;

The second playback device selection module is used to select a playback device from playback devices other than the first playback device as the second playback device;

The bluetooth start command sending module is used to send the first bluetooth start command to the second playback device to instruct the second play device to turn on the bluetooth and set the bluetooth state to a visible state.

Preferably, the device also includes:

The first playback device selection module is used for when the playback device in the audio and video playback system does not establish a Bluetooth connection with the audio source device before the main playback device of the audio and video playback system receives the notification of the bluetooth state change of the first playback device , selecting a playback device from the audio and video playback system as the first playback device;

Turn on and off the command sending module, for sending the second bluetooth open order to the first playback device, to instruct the first play device to turn on the bluetooth and set the bluetooth state to the visible state; simultaneously send the bluetooth off order to the audio and video player other playback devices in the system to instruct the other playback devices to turn off bluetooth.

Preferably, the second playback device selection module is specifically used for:

A playback device is randomly selected from the playback devices in the non-play state except the first playback device as the second playback device.

Preferably, the second playback device selection module includes:

A signal detection command sending unit, configured to send a signal detection command to a playback device other than the first playback device, to instruct the playback device other than the first playback device to detect and set the Bluetooth signal strength of the audio source device;

A playback device determining unit, configured to obtain the Bluetooth signal strength from playback devices other than the first playback device, and determine the playback device whose detected Bluetooth signal strength is greater than the signal strength threshold;

The second playback device selection unit is configured to randomly select a playback device from the playback devices whose detected Bluetooth signal strength is greater than the signal strength threshold as the second playback device.

Preferably, the device also includes:

SSID and password acquisition module, used for broadcasting in the audio and video playback system after receiving the SSID and password of the first playback device sent by the audio source device, and receiving the first playback device with the SSID and password After the response, return the response to the audio source device.

The embodiment of the present invention also provides a playback device, which integrates the Bluetooth connection control device of the playback device in the audio and video playback system provided by any embodiment of the present invention.

The above-mentioned product can execute the method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (11)

1. the Bluetooth connection control method of playback equipment in a kind of audio-video frequency playing system, which is characterized in that the method includes：

The main playback equipment of audio-video frequency playing system receives the notice that the bluetooth state of the first playback equipment changes, wherein described Bluetooth state is changed into hidden state by visible state after receiving audio, video data by bluetooth by the first playback equipment；

The main playback equipment chooses a playback equipment from the playback equipment in addition to first playback equipment, as Two playback equipments；

The main playback equipment sends the first bluetooth open command to second playback equipment, to indicate that second broadcasting is set It is standby to open bluetooth, and visible state is set by bluetooth state.

2. the method according to claim 1, wherein the main playback equipment in audio-video frequency playing system receives first Before the notice that the bluetooth state of playback equipment changes, further include：

When the playback equipment in the audio-video frequency playing system does not establish bluetooth connection with audiogenic device, the main broadcaster, which is put, to be set It is standby that a playback equipment is chosen from the audio-video frequency playing system, as the first playback equipment；

The main playback equipment sends the second bluetooth open command to first playback equipment, to indicate that first broadcasting is set It is standby to open bluetooth and set visible state for bluetooth state；Bluetooth shutdown command is sent in audio-video frequency playing system simultaneously Other playback equipments, to indicate that other described playback equipments close bluetooth.

3. method according to claim 1 or 2, which is characterized in that the main playback equipment is set from except first broadcasting A playback equipment is randomly selected in playback equipment other than standby, includes as the second playback equipment：

The main playback equipment selects at random from the playback equipment in non-broadcast state in addition to first playback equipment A playback equipment is taken, as the second playback equipment.

4. method according to claim 1 or 2, which is characterized in that the main playback equipment is set from except first broadcasting A playback equipment is randomly selected in playback equipment other than standby, includes as the second playback equipment：

The main playback equipment sends signal detection order to the playback equipment other than first playback equipment, described in instruction The bluetooth signal intensity of playback equipment detection setting audiogenic device other than first playback equipment；

The main playback equipment obtains the bluetooth signal intensity from the playback equipment other than first playback equipment, determines The bluetooth signal intensity of detection is greater than the playback equipment of signal strength threshold；

The main playback equipment selects at random from the playback equipment that the bluetooth signal intensity of the detection is greater than signal strength threshold A playback equipment is taken, as the second playback equipment.

5. method according to claim 1 or 2, which is characterized in that further include：

The main playback equipment receive audiogenic device transmission the first playback equipment service set SSID and password after, It is broadcasted in the audio-video frequency playing system, and in the response for receiving the first playback equipment with the SSID and password Afterwards, the response is returned into the audiogenic device.

6. the bluetooth connection control device of playback equipment in a kind of audio-video frequency playing system, which is characterized in that described device includes：

It notifies receiving module, is configured in the main playback equipment of audio-video frequency playing system, for receiving the indigo plant of the first playback equipment The notice that dental phenomenon changes, wherein first playback equipment is after receiving audio, video data by bluetooth by bluetooth state Hidden state is changed by visible state；

Second playback equipment chooses module, for choosing a broadcasting from the playback equipment in addition to first playback equipment Equipment, as the second playback equipment；

Bluetooth open command sending module, for sending the first bluetooth open command to second playback equipment, to indicate It states the second playback equipment and opens bluetooth, and set visible state for bluetooth state.

7. device according to claim 6, which is characterized in that further include：

First playback equipment chooses module, and the indigo plant of the first playback equipment is received for the main playback equipment in audio-video frequency playing system Before the notice that dental phenomenon changes, bluetooth is not established with audiogenic device when the playback equipment in the audio-video frequency playing system and is connected When connecing, a playback equipment is chosen from the audio-video frequency playing system, as the first playback equipment；

Open and close command sending module, for sending the second bluetooth open command to first playback equipment, to indicate The first playback equipment is stated to open bluetooth and set visible state for bluetooth state；Bluetooth shutdown command is sent to audio-video simultaneously Other playback equipments in play system, to indicate that other described playback equipments close bluetooth.

8. device according to claim 6 or 7, which is characterized in that second playback equipment is chosen module and is specifically used for：

A playback equipment is randomly selected from the playback equipment in non-broadcast state in addition to first playback equipment, As the second playback equipment.

9. device according to claim 6 or 7, which is characterized in that second playback equipment chooses module and includes：

Signal detection command sending unit is set for sending signal detection order to the broadcasting other than first playback equipment It is standby, to indicate the bluetooth signal intensity of the playback equipment detection setting audiogenic device other than first playback equipment；

Playback equipment determination unit is strong for obtaining the Bluetooth signal from the playback equipment other than first playback equipment Degree determines that the bluetooth signal intensity of detection is greater than the playback equipment of signal strength threshold；

Second playback equipment selection unit, the broadcasting for being greater than signal strength threshold from the bluetooth signal intensity of the detection are set A playback equipment is randomly selected in standby, as the second playback equipment.

10. device according to claim 6 or 7, which is characterized in that further include：

SSID and password know module, for receive audiogenic device transmission the first playback equipment SSID and password after, It is broadcasted in the audio-video frequency playing system, and in the response for receiving the first playback equipment with the SSID and password Afterwards, the response is returned into the audiogenic device.

11. a kind of playback equipment, which is characterized in that the playback equipment is integrated with the audio-video as described in claim 6-10 is any The bluetooth connection control device of playback equipment in play system.