Wireless communication system, data transmission method and playing device

Abstract

The invention discloses a wireless communication system, a data transmission method and a playing device, when the playing device determines that the number of communication links established with a terminal is less than the number of data types included in a target sound effect scene, a monitoring link is established to monitor data transmitted in communication links between other playing devices and the terminal. Therefore, when the number of established communication links is small, more types of data can still be obtained, and the number of the obtained data types is greater than the number of the communication links, so that the number of the communication links established between the playing device and the terminal can be reduced, bandwidth resources can be saved, the anti-interference capability can be improved, the time delay can be reduced, and the user experience can be improved. And the compatibility is improved. Moreover, the data acquired through the communication link and the monitoring link are data of a single type, so that the amount of data transmitted in the communication link can be reduced, the amount of data lost during packet loss is reduced, and the anti-interference capability during data transmission is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless audio transmission, and in particular to a wireless communication system, a data transmission method and a playback device. Background Art

[0002] The playback device can be pre-configured with a variety of sound effect scenes, and users can select the corresponding sound effect scene according to their needs. Among them, common sound effect scenes include: stereo, surround sound, cinema sound, 3D surround sound, etc. The data of each sound effect scene includes multiple types of data. The terminal can transmit each type of data to the playback device, so that the playback device can play based on the acquired data to achieve the playback of a specific sound effect scene.

[0003] However, when the terminal transmits data to the playback device, there may be problems such as poor anti-interference ability, high delay, and poor compatibility. Therefore, how to improve anti-interference ability, reduce delay, and improve compatibility during data transmission is a technical problem that technicians in this field need to solve urgently. Summary of the invention

[0004] The embodiments of the present invention provide a wireless communication system, a data transmission method and a playback device, which are used to solve the problems of high data transmission delay, weak anti-interference capability and poor device compatibility existing in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a wireless communication system, including:

[0006] Terminals and multiple playback devices arranged in groups;

[0007] Each playback device is used to:

[0008] Determine the number of data types included in the target sound effect scene data;

[0009] When it is determined that a communication link is established with the terminal and the number of established communication links is less than the number of data types, a monitoring link is established to obtain data through the monitoring link and the communication link; wherein the monitoring link is used to: monitor data transmitted in the communication link between other playback devices and the terminal;

[0010] The terminal is used to transmit data via a communication link with a playback device.

[0011] In a second aspect, an embodiment of the present invention provides a data transmission method, including:

[0012] For each of the multiple playback devices set up in a group, the following process is performed:

[0013] Determine the number of data types included in the target sound effect scene data;

[0014] When it is determined that a communication link is established with the terminal and the number of established communication links is less than the number of data types, a monitoring link is established, and data is acquired through the monitoring link and the communication link;

[0015] The monitoring link is used to monitor data transmitted in the communication link between other playback devices and the terminal.

[0016] In a third aspect, an embodiment of the present invention further provides a playback device, including:

[0017] A memory for storing program instructions;

[0018] The processor is used to call the program instructions stored in the memory and execute the data transmission method introduced in the second aspect according to the obtained program.

[0019] The beneficial effects of the present invention are as follows:

[0020] The embodiments of the present invention provide a wireless communication system, a data transmission method and a playback device. When the playback device determines the number of data types included in the target sound effect scene and the number of communication links established with the terminal is less than the number of data types, a monitoring link is established to monitor the data transmitted in the communication links between other playback devices and the terminal. In this way, when fewer communication links are established, more types of data can still be obtained, and the number of acquired data types is more than the number of communication links. This can reduce the number of communication links established between the playback device and the terminal, thereby saving bandwidth resources, improving the anti-interference ability during data transmission, reducing the delay generated during data transmission, and improving compatibility. In addition, the data obtained through the communication link and the monitoring link are all single-type data, which can reduce the amount of data transmitted in the communication link, thereby reducing the amount of data lost when packets are lost, thereby further improving the anti-interference ability during data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a first wireless communication system provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a second wireless communication system provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a third wireless communication system provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of a fourth wireless communication system provided in an embodiment of the present invention;

[0025] Figure 5A schematic diagram of the structure of a fifth wireless communication system provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a sixth wireless communication system provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a seventh wireless communication system provided in an embodiment of the present invention;

[0028] Figure 8 A time domain diagram of data transmission provided in an embodiment of the present invention;

[0029] Fig. 9 A schematic diagram of a data storage format provided in an embodiment of the present invention;

[0030] Fig.10 A schematic diagram of another data storage format provided in an embodiment of the present invention;

[0031] Fig.11 A flowchart of a data transmission method provided in an embodiment of the present invention;

[0032] Fig.12 The present invention is a schematic diagram of a playback device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings to describe a specific implementation of a wireless communication system, a data transmission method, and a playback device provided by an embodiment of the present invention. It should be noted that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Before introducing the technical solution provided by the embodiment of the present invention, relevant terms are explained.

[0035] 1. The playback device may be a headset or a speaker with wireless functions (such as but not limited to Bluetooth, infrared, etc.).

[0036] 2. Non-low-power Bluetooth audio modes include, but are not limited to, classic Bluetooth mode and Bluetooth Low Energy (BLE) mode. Classic Bluetooth mode is suitable for transmission of large amounts of data and supports wireless transmission of audio streams. It can be used for, but is not limited to, Bluetooth phone calls, Bluetooth headsets, Bluetooth speakers, and other scenarios. BLE mode has the characteristics of low power consumption and fast connection speed, and is generally used for transmission of small amounts of data, such as, but not limited to, remote controls, sensor devices, and the like.

[0037] 3. Low-power Bluetooth audio (BLE audio) mode, as a new generation of Bluetooth audio technology, brings new audio experience functions, including enhanced audio performance, added audio sharing function and hearing aid support.

[0038] In the related art, taking the playback device as a true wireless headset as an example, the true wireless headset generally includes a left headset and a right headset arranged in pairs. The terminal establishes a communication link with the left headset, and also establishes a communication link with the right headset. The terminal transmits stereo data to the left headset through the communication link between the left headset and the right headset through the communication link between the right headset, so that the left headset and the right headset can respectively play stereo data. However, the amount of data transmitted in this way is large, and data loss is prone to occur, resulting in poor anti-interference ability. In addition to this data transmission method, the following method can also be used: the terminal establishes two communication links with the left headset, and the terminal also establishes two communication links with the right headset. The two communication links between the terminal and the left headset are used to transmit left channel data and right channel data respectively, and the two communication links between the terminal and the right headset are also used to transmit left channel data and right channel data respectively, so that the left headset and the right headset can respectively play stereo data. However, in this transmission method, more communication links are established, more bandwidth resources are occupied, and the delay becomes higher, the anti-interference ability becomes worse, and the compatibility is reduced.

[0039] Based on this, the embodiments of the present invention provide a wireless communication system, a data transmission method and a playback device, which are used to solve the problems of high data transmission delay, weak anti-interference ability and poor compatibility existing in the prior art.

[0040] An embodiment of the present invention provides a wireless communication system, such as Figures 1 to 7 As shown, the wireless communication system may include: a terminal and a plurality of playback devices arranged in groups, and the terminal may be a terminal supporting a non-low-power Bluetooth audio mode or a low-power Bluetooth audio mode. The number of playback devices may be, but is not limited to, two, three, four or more, and may be set according to actual conditions and is not limited here.

[0041] Specifically, for the terminal, it is used to transmit data through the communication link between the terminal and the playback device; for each playback device, the following process can be performed:

[0042] Step 1: Determine the number of data types included in the target sound effect scene data;

[0043] Among them, the sound effect scene can generally include: stereo, surround sound, 3D surround sound, cinema sound, etc., and each sound effect scene can include two or more types of data. For example, stereo includes two types of data, such as left channel data and right channel data.

[0044] The target sound effect scene data can be understood as data corresponding to the sound effect scene that the playback device is about to play. For example, if the playback device is about to play stereo, the target sound effect scene data is stereo data. Moreover, the sound effect scene that is about to be played is the target sound effect scene.

[0045] Based on this, in one embodiment, the playback device can determine the target sound effect scene according to the information carried in the received playback instruction, and then determine the number of data types included in the target sound effect scene. The playback instruction can be: an instruction generated after the user selects a sound effect scene from the sound effect scene list.

[0046] Step 2: When it is determined that a communication link has been established with the terminal and the number of established communication links is less than the number of data types, a monitoring link is established to obtain data through the monitoring link and the communication link; wherein the monitoring link is used to monitor data transmitted in the communication link between other playback devices and the terminal.

[0047] In some embodiments, the monitoring link and the own communication link transmit data of different types, so that data of a type different from that transmitted by the own communication link can be acquired through the monitoring link.

[0048] For example, combined with Figure 1 As shown, the solid arrow represents the communication link, and the dotted arrow represents the monitoring link. Assuming that the target sound effect scene of the playback device 1 and the playback device 2 is stereo, the playback device 1 establishes a communication link with the terminal to transmit the left channel data. Since the stereo includes two types of data, namely the left channel data and the right channel data, the number of communication links of the playback device 1 is less than the number of data types included in the stereo. Then, the playback device 1 establishes a monitoring link to monitor the data transmitted in the communication link between the playback device 2 and the terminal. When the communication link between the playback device 2 and the terminal transmits the right channel data, although the playback device 1 establishes a communication link, it can still obtain the data of the two channels (namely two types of data), thereby reducing the number of communication links established.

[0049] In this way, when fewer communication links are established, more types of data can still be obtained, and the number of types of data obtained is greater than the number of communication links, which can reduce the number of communication links established between the playback device and the terminal, thereby saving bandwidth resources, improving the anti-interference ability during data transmission, reducing the delay generated during data transmission, and improving compatibility. In addition, the data obtained through the communication link and the monitoring link are all single-type data, which can reduce the amount of data transmitted in the communication link, thereby reducing the amount of data lost when packets are lost, thereby further improving the anti-interference ability during data transmission.

[0050] In some embodiments, the sum of the communication links established between the terminal and each playback device may be greater than the number of data types, and some communication links transmit different types of data, while some communication links transmit the same type of data; if the communication links that transmit the same type of data are regarded as a group of communication links, such a setting can avoid that when a communication link in a group of communication links is abnormal and cannot transmit data, the data can be transmitted through other communication links in the group of communication links, so as to ensure that the data of this type can be effectively transmitted to the playback device. Among them, the number of communication links included in a group of communication links is not limited here, and the sum of communication links is not limited here, and can be set according to actual conditions.

[0051] Of course, the sum of the communication links established between the terminal and each playback device may also be equal to the number of data types, such as Figure 1 As shown in , when the number of data types is 2, the sum of the communication links is also 2, and each communication link transmits a different type of data. In this way, the terminal can transmit different types of data through each communication link, and can also streamline the number of communication links set up, reduce the occupancy of bandwidth resources, improve anti-interference capabilities, and reduce delays.

[0052] Furthermore, when multiple monitoring links are established, each monitoring link can monitor data transmitted in the communication links corresponding to different other playback devices. Figure 5As shown, the playback device 3 has two monitoring links, one of which is used to monitor the data transmitted in the communication link between the playback device 1 and the terminal, and the other is used to monitor the data transmitted in the communication link between the playback device 2 and the terminal. When the types of data transmitted on the two monitored communication links are different, the types of data monitored by the two monitoring links are also different. In this way, by establishing multiple monitoring links, the number of communication links established can be reduced, and the problems of increased delay, reduced anti-interference performance and reduced compatibility due to more communication links when acquiring data through communication links can be avoided. Therefore, while ensuring that the playback device can effectively acquire each data, the delay can also be reduced, the anti-interference ability can be improved, and the compatibility can be improved. In addition, this can make the link design more diverse and improve the flexibility of the design.

[0053] In addition, the playback device may determine the number of established listening links based on the difference between the number of data types and the number of established communication links. Figure 5 As shown in the figure, the total number of communication links included in the figure is 3. Assuming that the number of data types included in the target sound effect scene data is also 3, when playback device 1, playback device 2 and playback device 3 all establish a communication link with the terminal, the number of monitoring links established by each playback device can be 2. In this way, the number of monitoring links can be determined by this method, so that the number of established monitoring links is minimized, the complexity of link settings is reduced, and the wireless communication system is simplified.

[0054] In some embodiments, each playback device is further configured to: when it is determined that the number of established communication links is equal to the number of data types, obtain the data transmitted in each communication link. When the types of data transmitted in the communication links established by the playback device are different, the playback device can obtain each type of data through each communication link, and then after fusing the data of each type, the playback of the target sound effect scene data can be achieved. For example, Figure 2 As shown, when the target sound effect scene data is stereo data and the playback device 1 has two communication links, the number of communication links of the playback device 1 is equal to the number of data types included in the stereo data, so there is no need to establish a monitoring link, and the left channel data and the right channel data can be obtained through these two communication links.

[0055] Of course, each playback device is also used to: when it is determined that no communication link has been established with the terminal, establish multiple listening links and obtain data through each listening link; wherein the number of the established listening links is equal to the number of data types, and the types of data obtained through different listening links are different. In this way, even if the playback device does not establish a communication link with the terminal, it can obtain various types of data through each listening link, and after fusing the various types of data, it can achieve the playback of the target sound effect scene data. Thereby, the total number of communication links established in the wireless communication system can be effectively reduced, and the occupation of bandwidth resources can be effectively reduced. For example, if Figure 2 As shown, when the target sound effect scene data is stereo data and the playback device 2 has two monitoring links, the number of monitoring links of the playback device 2 is equal to the number of data types included in the stereo data, so there is no need to establish a communication link with the terminal, and the left channel data and the right channel data can be obtained through these two monitoring links.

[0056] In some embodiments, data transmitted in the monitoring link is identical to data transmitted in the communication link corresponding to the monitoring link and has the same time domain sequence.

[0057] For example, taking the target sound scene as stereo, combined with Figure 1 The structure shown, Figure 8 The communication link 1 is the communication link between the playback device 1 and the terminal, the communication link 2 is the communication link between the playback device 2 and the terminal, the monitoring link 1 is used to monitor the data transmitted in the communication link 2, and the monitoring link 2 is used to monitor the data transmitted in the communication link 1. Figure 8 In the figure, Ack represents the response data packet, communication link 1 transmits the left channel data, and communication link 2 transmits the right channel data; and the terminal sends the channel data in sequence according to the order of left channel data 1, right channel data 1, left channel data 2, right channel data 2...

[0058] The terminal first sends left channel data 1 to playback device 1 through communication link 1. After receiving left channel data 1 from communication link 1, playback device 1 feeds back Ack to the terminal through communication link 1 to inform the terminal that it has received left channel data 1. Since playback device 2 has established monitoring link 2 for monitoring communication link 1, when the terminal sends left channel data 1 to playback device 1 through communication link 1, playback device 2 can obtain the left channel data 1 through monitoring link 2, and the time for playback device 2 and playback device 1 to obtain left channel data 1 is the same, so it can be considered that the left channel data 1 transmitted in monitoring link 2 is the same as the left channel data 1 transmitted in communication link 1 in the time domain sequence.

[0059] The terminal sends right channel data 1 to playback device 2 via communication link 2. After receiving the right channel data 1 from communication link 2, playback device 2 feeds back Ack to the terminal via communication link 2 to inform the terminal that the right channel data 1 has been received. Since playback device 1 has established a monitoring link 1 for monitoring communication link 2, when the terminal sends right channel data 1 to playback device 2 via communication link 2, playback device 1 can obtain the right channel data 1 via monitoring link 1, and the time for playback device 1 and playback device 2 to obtain the right channel data 1 is the same, so it can be considered that the right channel data 1 transmitted in monitoring link 1 and the right channel data 1 transmitted in communication link 2 are the same in time domain sequence.

[0060] The way in which the playback device obtains other left channel data and other right channel data is the same as the way in which the left channel data 1 and the right channel data 1 are obtained. For details, please refer to the above description and will not be described in detail here.

[0061] In some embodiments, the playback device sequentially stores each acquired data according to the time domain sequence of each acquired data. The storage format may be as follows: Fig. 9 As shown in , the acquired data can be stored in the cache of the playback device.

[0062] Furthermore, when packet loss is determined, a compensation packet is determined according to a preset compensation algorithm, a packet loss mark is assigned to the compensation packet, and the compensation packet with the packet loss mark is stored in the time domain sequence corresponding to the packet loss. Fig.10 As shown, assuming that the playback device does not receive the left channel data 2, it can be confirmed that packet loss has occurred. At this time, the compensation packet corresponding to the left channel data 2 can be determined according to the preset compensation algorithm, and a packet loss mark is given to the compensation packet to mark the data packet as a compensation packet, and the compensation packet with the packet loss mark is stored in the time domain sequence corresponding to the left channel data 2. Based on this, for the playback device, even if packet loss occurs, the data packet can be compensated based on the above method and stored in the corresponding time domain sequence to ensure that the playback device can play normally.

[0063] The preset compensation algorithm may be any algorithm known to those skilled in the art that can achieve the compensation packet, and is not limited here. In addition, the packet loss mark may include at least one of numbers, letters, special symbols, etc., and may be set according to actual conditions, and is not limited here.

[0064] The data transmission method provided by the embodiment of the present invention is explained below in conjunction with specific embodiments.

[0065] Example 1: Taking the target sound effect scene as stereo as an example, combined with Figure 1As shown, a communication link 1 is established between the terminal and the playback device 1, and the communication link 1 is used to transmit left channel data. The playback device 1 has a monitoring link 1 for monitoring the right channel data transmitted in the communication link 2; a communication link 2 is established between the terminal and the playback device 2, and the communication link 2 is used to transmit right channel data. The playback device 2 has a monitoring link 2 for monitoring the left channel data transmitted in the communication link 1.

[0066] At this point, the data transmission process may include:

[0067] Playback device 1 receives the left channel data sent by the terminal through communication link 1, and feeds back a response data packet to the terminal; at this time, playback device 2 can also obtain the left channel data through monitoring link 2, and the time when playback device 1 and playback device 2 obtain the left channel data is the same;

[0068] Playing device 2 receives the right channel data sent by the terminal through communication link 2, and feeds back a response data packet to the terminal; at this time, playing device 1 can also obtain the right channel data through monitoring link 1, and the time when playing device 2 and playing device 1 obtain the right channel data is the same;

[0069] Playback device 1 obtains and plays stereo data based on the acquired left channel data and right channel data, and playback device 2 also obtains and plays stereo data based on the acquired left channel data and right channel data. Playback device 1 and playback device 2 can play stereo data at the same time, or of course, they can play at different times.

[0070] Example 2: Taking the target sound effect scene as stereo as an example, combining Figure 2 As shown, a communication link 1 and a communication link 2 are established between the terminal and the playback device 1, the communication link 1 is used to transmit the left channel data, and the communication link 2 is used to transmit the right channel data; the playback device 2 has a monitoring link 1 for monitoring the left channel data transmitted in the communication link 1, and a monitoring link 2 for monitoring the right channel data transmitted in the communication link 2.

[0071] At this time, the data transmission process in the second embodiment is similar to the data transmission process in the first embodiment, except that: playback device 1 receives the right channel data sent by the terminal through communication link 2; playback device 2 obtains the right channel data through monitoring link 2. Among them, the time when playback device 2 and playback device 1 obtain the left channel data is the same, and the time when playback device 2 and playback device 1 obtain the right channel data is the same. It should be understood that the data transmission process in the second embodiment is similar to the data transmission process in the first embodiment, and the description in the first embodiment can be referred to, and the repeated parts will not be repeated.

[0072] Example 3: Taking the target sound effect scene as stereo as an example, combining Figure 3 As shown, the terminal establishes communication link 1 with playback device 1, communication link 1 is used to transmit left channel data, and playback device 1 has monitoring link 1 (i.e., s1) for monitoring right channel data transmitted in communication link 2; the terminal establishes communication link 2 with playback device 2, communication link 2 is used to transmit right channel data, and playback device 2 has monitoring link 2 (i.e., s2) for monitoring left channel data transmitted in communication link 1; playback device 3 has monitoring link 3 (i.e., s3) for monitoring left channel data transmitted in communication link 1, and has monitoring link 4 (i.e., s4) for monitoring right channel data transmitted in communication link 2.

[0073] At this point, the data transmission process may include:

[0074] Playback device 1 receives the left channel data sent by the terminal through communication link 1, and feeds back a response data packet to the terminal; at this time, playback device 2 can also obtain the left channel data through s2, and playback device 3 can also obtain the left channel data through s3, and playback device 2, playback device 3 and playback device 1 obtain the left channel data at the same time;

[0075] Playback device 2 receives the right channel data sent by the terminal through communication link 2, and feeds back a response data packet to the terminal; at this time, playback device 1 can also obtain the right channel data through s1, and playback device 3 can also obtain the right channel data through s4, and playback device 1, playback device 3 and playback device 2 obtain the right channel data at the same time;

[0076] Playback device 1 obtains and plays stereo data based on the acquired left channel data and right channel data. Playback device 2 and playback device 3 play stereo data similar to playback device 1. Playback device 1, playback device 2 and playback device 3 can play simultaneously, or of course, they can also play at different times.

[0077] Example 4: Taking the target sound effect scene as stereo as an example, combining Figure 4 As shown, the terminal establishes communication link 1 and communication link 2 with playback device 1, communication link 1 is used to transmit left channel data, and communication link 2 is used to transmit right channel data; playback device 2 has a monitoring link 1 (i.e., s1) for monitoring the left channel data transmitted in communication link 1, and has a monitoring link 2 (i.e., s2) for monitoring the right channel data transmitted in communication link 2; playback device 3 has a monitoring link 3 (i.e., s3) for monitoring the left channel data transmitted in communication link 1, and has a monitoring link 4 (i.e., s4) for monitoring the right channel data transmitted in communication link 2.

[0078] At this time, the data transmission process in this fourth embodiment is similar to the data transmission process in the third embodiment, except that: playback device 1 receives the right channel data sent by the terminal through communication link 2; playback device 2 obtains the right channel data through s2. Among them, the time when playback device 2, playback device 3 and playback device 1 obtain the left channel data is the same, and the time when playback device 2, playback device 3 and playback device 1 obtain the right channel data is the same. It should be understood that the data transmission process in this fourth embodiment is similar to the data transmission process in the third embodiment, and the description in the third embodiment can be referred to, and the repeated parts will not be repeated.

[0079] Example 5: Taking the target sound effect scene as a scene including three-channel data as an example, the three mono data are respectively recorded as mono data 1, mono data 2 and mono data 3, combined with Figure 5 As shown, the terminal establishes a communication link 1 with the playback device 1, the communication link 1 is used to transmit mono data 1, the playback device 1 has a monitoring link 1 (i.e., s1) for monitoring the mono data 2 transmitted in the corresponding communication link, and has a monitoring link 2 (i.e., s2) for monitoring the mono data 3 transmitted in the corresponding communication link; the terminal establishes a communication link 2 with the playback device 2, the communication link 2 is used to transmit mono data 2, the playback device 2 has a monitoring link 3 (i.e., s3) for monitoring the mono data 1 transmitted in the corresponding communication link, and has a monitoring link 4 (i.e., s4) for monitoring the mono data 3 transmitted in the corresponding communication link; the terminal establishes a communication link 3 with the playback device 3, the communication link 3 is used to transmit mono data 3, the playback device 3 has a monitoring link 5 (i.e., s5) for monitoring the mono data 1 transmitted in the corresponding communication link, and has a monitoring link 6 (i.e., s6) for monitoring the mono data 2 transmitted in the corresponding communication link.

[0080] At this point, the data transmission process may include:

[0081] Playback device 1 receives mono data 1 sent by the terminal through communication link 1, and feeds back a response data packet to the terminal; at this time, playback device 2 can also obtain mono data 1 through s3, and playback device 3 can also obtain mono data 1 through s5, and playback device 2, playback device 3 and playback device 1 obtain mono data 1 at the same time;

[0082] Playback device 2 receives the mono data 2 sent by the terminal through communication link 2, and feeds back a response data packet to the terminal; at this time, playback device 1 can also obtain the mono data 2 through s1, and playback device 3 can also obtain the mono data 2 through s6, and playback device 1, playback device 3 and playback device 2 obtain the mono data 2 at the same time;

[0083] Playing device 3 receives mono data 3 sent by the terminal through communication link 3, and feeds back a response data packet to the terminal; at this time, playing device 1 can also obtain mono data 3 through s2, and playing device 2 can also obtain mono data 3 through s4, and the time when playing device 1, playing device 2 and playing device 3 obtain mono data 3 is the same;

[0084] Playback device 1, playback device 2 and playback device 3 all play based on the acquired mono data 1, mono data 2 and mono data 3, and playback device 1, playback device 2 and playback device 3 can play simultaneously, or of course, they can also play at different times.

[0085] Example 6: Taking the target sound effect scene as a scene including three-channel data as an example, the three mono data are respectively recorded as mono data 1, mono data 2 and mono data 3, combined with Figure 6 As shown, the terminal establishes communication link 1 and communication link 2 with playback device 1, communication link 1 is used to transmit mono data 1, communication link 2 is used to transmit mono data 2, playback device 1 has a monitoring link 1 (i.e., s1) for monitoring mono data 3 transmitted in the corresponding communication link; playback device 2 has a monitoring link 2 (i.e., s2) for monitoring mono data 1 transmitted in the corresponding communication link, has a monitoring link 3 (i.e., s3) for monitoring mono data 2 transmitted in the corresponding communication link, and has a monitoring link 4 (i.e., s4) for monitoring mono data 3 transmitted in the corresponding communication link; the terminal establishes communication link 3 with playback device 3, communication link 3 is used to transmit mono data 3, playback device 3 has a monitoring link 5 (i.e., s5) for monitoring mono data 1 transmitted in the corresponding communication link, and has a monitoring link 6 (i.e., s6) for monitoring mono data 2 transmitted in the corresponding communication link.

[0086] At this time, the data transmission process in the sixth embodiment is similar to the data transmission process in the fifth embodiment, except that: playback device 1 receives mono data 2 sent by the terminal through communication link 2; playback device 2 obtains mono data 2 through s3. Among them, the time when playback device 2, playback device 3 and playback device 1 obtain mono data 1 is the same. Similarly, the time when playback device 2, playback device 3 and playback device 1 obtain mono data 2 is the same, and the time when playback device 1, playback device 2 and playback device 3 obtain mono data 3 is the same. It should be understood that the data transmission process in the sixth embodiment is similar to the data transmission process in the fifth embodiment, and the description in the fifth embodiment can be referred to, and the repeated parts will not be repeated.

[0087] Example 7: Taking the target sound effect scene as a scene including three-channel data as an example, the three mono data are respectively recorded as mono data 1, mono data 2 and mono data 3, combined with Figure 7 As shown, playback device 1 has a monitoring link 1 (i.e., s1) for monitoring mono data 1 transmitted in the corresponding communication link, a monitoring link 2 (i.e., s2) for monitoring mono data 2 transmitted in the corresponding communication link, and a monitoring link 3 (i.e., s3) for monitoring mono data 3 transmitted in the corresponding communication link; the terminal establishes communication link 1, communication link 2, and communication link 3 with playback device 2, communication link 1 is used to transmit mono data 1, communication link 2 is used to transmit mono data 2, and communication link 3 is used to transmit mono data 3; playback device 3 has a monitoring link 4 (i.e., s4) for monitoring mono data 1 transmitted in the corresponding communication link, a monitoring link 5 (i.e., s5) for monitoring mono data 2 transmitted in the corresponding communication link, and a monitoring link 6 (i.e., s6) for monitoring mono data 3 transmitted in the corresponding communication link.

[0088] At this time, the data transmission process in this embodiment 7 is similar to the data transmission process in the above embodiment 5, and the difference is that: playback device 1 obtains mono data 1 through s1; playback device 2 receives mono data 1 sent by the terminal through communication link 1; playback device 2 receives mono data 3 sent by the terminal through communication link 3; playback device 3 obtains mono data 3 through s6. Among them, the time when playback device 1, playback device 3 and playback device 2 obtain mono data 1 is the same, and similarly, the time when playback device 1, playback device 3 and playback device 2 obtain mono data 2 is the same, and the time when playback device 1, playback device 3 and playback device 2 obtain mono data 3 is the same. It should be understood that the data transmission process in this embodiment 7 is similar to the data transmission process in the above embodiment 5, and the description in the above embodiment 5 can be referred to, and the repeated parts will not be repeated.

[0089] Of course, the above seven embodiments are just specific examples, but in actual situations, they are not limited to the above seven embodiments, and can also be other embodiments that can improve anti-interference ability and reduce delay, which are not limited here. It should be understood that Figures 2 to 7 The solid arrows in the figure represent communication links, and the dotted arrows represent monitoring links.

[0090] In summary, under the premise that each playback device can play various types of data, by establishing communication links and monitoring links, data can be obtained through multiple channels, thereby improving compatibility with different devices, improving anti-interference ability during data transmission, and reducing the delay generated during data transmission.

[0091] Based on the same inventive concept, an embodiment of the present invention also provides a data transmission method. The implementation principle of the data transmission method is similar to the implementation principle of the aforementioned wireless communication system. The specific implementation method of the data transmission method can refer to the embodiment of the aforementioned wireless communication system, and the repeated parts will not be repeated.

[0092] Specifically, an embodiment of the present invention provides a data transmission method, such as Fig.11 As shown, it may include:

[0093] S1101, determining the number of data types included in the target sound effect scene data;

[0094] S1102: when it is determined that a communication link is established with the terminal and the number of established communication links is less than the number of data types, establish a monitoring link, obtain data through the monitoring link, and obtain data through the communication link;

[0095] S1103: Play the target sound effect scene data.

[0096] Based on the same inventive concept, an embodiment of the present invention further provides a playback device, the implementation principle of the playback device is similar to the implementation principle of the aforementioned wireless communication system. The specific implementation method of the playback device can refer to the embodiment of the aforementioned wireless communication system, and the repeated parts will not be repeated.

[0097] Specifically, an embodiment of the present invention provides a playback device, such as Fig.12 As shown, it may include:

[0098] Memory 1201, used for storing program instructions;

[0099] The processor 1202 is used to call the program instructions stored in the memory 1201, and execute the data transmission method introduced in the above content according to the obtained program.

[0100] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wireless communication system, characterized in that: include: Terminals and multiple playback devices arranged in groups; Each of the playback devices is used to: Determine the number of data types included in the target sound effect scene data; When it is determined that a communication link is established with the terminal, and the number of the established communication links is less than the number of data types, a monitoring link is established, and data is acquired through the monitoring link and the communication link; wherein the monitoring link is used to: monitor data transmitted in the communication link between other playback devices and the terminal; The terminal is used to transmit data via the communication link between the terminal and the playback device.

2. The wireless communication system according to claim 1, wherein: The sum of the communication links established between the terminal and each of the playback devices is equal to the number of data types, and the types of data transmitted by each of the communication links are different.

3. The wireless communication system according to claim 1, wherein: When a plurality of monitoring links are established, each of the monitoring links monitors data transmitted in the communication links corresponding to different other playback devices.

4. The wireless communication system according to claim 1, wherein: The playback device is specifically used for: The number of the monitoring links to be established is determined according to the difference between the number of data types and the number of the communication links to be established.

5. The wireless communication system according to claim 1, wherein: The data transmitted in the monitoring link is the same as the data transmitted in the communication link corresponding to the monitoring link and has the same time domain sequence.

6. The wireless communication system according to claim 5, wherein: Each of the playback devices is also used for: According to the time domain sequence of each acquired data, each acquired data is stored in sequence, and when packet loss is determined, a compensation packet is determined according to a preset compensation algorithm, a packet loss mark is assigned to the compensation packet, and the compensation packet assigned with the packet loss mark is stored in the time domain sequence corresponding to the packet loss.

7. The wireless communication system according to any one of claims 1 to 6, characterized in that: Each of the playback devices is also used for: When it is determined that the number of the established communication links is equal to the number of data types, data transmitted in each of the communication links is acquired.

8. The wireless communication system according to any one of claims 1 to 6, characterized in that: Each of the playback devices is also used for: When it is determined that the communication link is not established with the terminal, establishing a plurality of monitoring links, and acquiring data through each of the monitoring links; The number of the established monitoring links is equal to the number of data types.

9. A data transmission method, characterized in that: include: For each of the plurality of playback devices arranged in a group, the following process is performed: Determine the number of data types included in the target sound effect scene data; When it is determined that a communication link is established with the terminal and the number of the established communication links is less than the number of data types, establishing a monitoring link, and acquiring data through the monitoring link and the communication link; The monitoring link is used to monitor data transmitted in the communication link between other playback devices and the terminal.

10. The method according to claim 9, characterized in that Also includes: When it is determined that the number of the established communication links is equal to the number of data types, data transmitted in each of the communication links is acquired.

11. The method according to claim 9, characterized in that Also includes: When it is determined that the communication link is not established with the terminal, establishing a plurality of monitoring links, and acquiring data through each of the monitoring links; The number of the established monitoring links is equal to the number of data types.

12. A playback device, characterized in that: include: A memory for storing program instructions; A processor is used to call the program instructions stored in the memory and execute the data transmission method according to any one of claims 9 to 11 according to the obtained program.

Images