Wireless live broadcast system

Abstract

The utility model discloses a wireless live broadcast system, which is characterized by comprising a wireless microphone module in communication connection with a wireless host module; the wireless accompaniment module is in communication connection with the wireless host module; the wireless host module is in communication connection with the mobile phone OTG interface, the plurality of wireless slave modules and the wireless monitoring module; the plurality of wireless slave modules are respectively in communication connection with the plurality of mobile phone OTG interfaces; the wireless monitoring module is used for receiving the restored audio signal and monitoring the restored audio signal; and the wireless remote control module is in communication connection with the wireless host module. According to the invention, all the live broadcast devices are in mutual communication connection in a wireless mode, troubles caused by live broadcast or site replacement in a wired connection mode are avoided, the reliability and tolerance of communication between the devices are improved, the use efficiency of the system is improved, and the system is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of live broadcast, in particular to a wireless live broadcast system. Background Art

[0002] In current general live broadcast scenarios, many devices are required, such as a live broadcast sound card, a microphone, a monitoring earphone, a live sound box, a live mobile phone, and an accompaniment mobile phone. Currently, the above devices are all connected in a wired manner, and the matching parameters between the devices need to be connected and debugged before each use. Especially for outdoor live broadcasts, the location often needs to be changed. Such traditional live broadcast devices will be particularly inconvenient. The outdoor environment changes greatly, and there are problems with the reliability and tolerance of the wired connections between the devices. The wires between the devices also need to be specially arranged to avoid the influence of the on-site audience on the device connections, which reduces the use efficiency of the system and is not convenient to carry. Summary of the Utility Model

[0003] Based on this, it is necessary to propose a wireless live broadcast system for the above problems.

[0004] A wireless live broadcast system includes:

[0005] A wireless microphone module, communicatively connected to the wireless host module, for outputting a first audio signal to the wireless host module;

[0006] A wireless accompaniment module, communicatively connected to the wireless host module, for outputting a second audio signal to the wireless host module;

[0007] A wireless host module, communicatively connected to a mobile phone OTG interface, a plurality of wireless slave modules, and a wireless monitoring module, for receiving the first audio signal and the second audio signal, and outputting a restored audio signal to the mobile phone OTG interface, the plurality of wireless slave modules, and the wireless monitoring module;

[0008] The plurality of wireless slave modules are respectively communicatively connected to a plurality of mobile phone OTG interfaces, for receiving the restored audio signal and respectively transmitting the restored audio signal to the plurality of mobile phone OTG interfaces;

[0009] The wireless monitoring module is used for receiving the restored audio signal and performing monitoring;

[0010] The wireless remote control module is communicatively connected to the wireless host module, for outputting a control signal to the wireless host module.

[0011] In one embodiment, the wireless live broadcast system further includes:

[0012] A wired microphone module, communicatively connected to the wireless host module, for outputting a third audio signal to the wireless host module;

[0013] A first wired accompaniment module, communicatively connected to the wireless host module, for outputting a fourth audio signal to the wireless host module;

[0014] A second wired accompaniment module, communicatively connected to the wireless host module, for outputting a fifth audio signal to the wireless host module.

[0015] In one embodiment, the wireless host module includes:

[0016] A first main control module, connected to a Bluetooth protocol module and a first 2.4G protocol module, for outputting a first control signal to the Bluetooth protocol module and a second control signal to the first 2.4G protocol module;

[0017] The Bluetooth protocol module, with its input end connected to the wireless accompaniment module and its output end connected to an audio digital signal processor, for receiving the first control signal and outputting the second audio signal output by the wireless accompaniment module to the audio digital signal processor;

[0018] The first 2.4G protocol module, with its input end connected to the wireless microphone module and its output end connected to an audio digital signal processor, for receiving the second control signal and outputting the first audio signal output by the wireless microphone module to the audio digital signal processor;

[0019] A first audio acquisition and encoding module, with its input end connected to the first wired accompaniment module and its output end connected to the audio digital signal processor, for converting the fourth audio signal output by the first wired accompaniment module into a first digital signal and outputting the first digital signal to the audio digital signal processor;

[0020] A second audio acquisition and encoding module, with its input end connected to the wired microphone module and its output end connected to the audio digital signal processor, for converting the third audio signal output by the wired microphone module into a second digital signal and outputting the second digital signal to the audio digital signal processor;

[0021] The audio digital signal processor, connected to the first 2.4G protocol module and a first audio restoration and decoding module, for receiving the second audio signal, the first audio signal, the first digital signal, and the second digital signal, and outputting the restored audio signal to the first 2.4G protocol module and the first audio restoration and decoding module; the first 2.4G protocol module is further used to output the restored audio signal to the multiple wireless slave modules and the wireless monitoring module;

[0022] The first audio restoration and decoding module, with its output end connected to a wired earphone, is used to convert the restored audio signal into an analog audio signal and output it to the wired earphone.

[0023] In one embodiment, the wireless live broadcast system further includes:

[0024] The first USB module, with its input end connected to the output end of the audio digital signal processor and its output end connected to the mobile phone OTG interface, is used to receive the restored audio signal and output the restored audio signal to the mobile phone OTG interface.

[0025] In one embodiment, the wireless live broadcast system further includes:

[0026] The power management module is connected to the first main control module, the Bluetooth protocol module, the first 2.4G protocol module, the first 2.4G protocol module, the second audio acquisition and encoding module, the audio digital signal processor, and the first audio restoration and decoding module, and is used to supply power to the first main control module, the Bluetooth protocol module, the first 2.4G protocol module, the first 2.4G protocol module, the second audio acquisition and encoding module, the audio digital signal processor, and the first audio restoration and decoding module.

[0027] In one embodiment, the audio digital signal processor includes:

[0028] The MP3 decoding module, with its input end connected to the output end of the second wired accompaniment module and its output end connected to the input end of the first digital audio mixing module, is used to receive the fifth audio signal and output the fifth audio signal to the first digital audio mixing module;

[0029] The first digital audio mixing module, with its input end connected to the output end of the first audio acquisition and encoding module and the output end of the Bluetooth protocol module and its output end connected to the input end of the audio sound effect processing module, is used to receive the first digital signal, the second audio signal, and the fifth audio signal, and output a sixth audio signal to the audio sound effect processing module;

[0030] The audio sound effect processing module, with its output end connected to the input end of the mixer, is used to receive the sixth audio signal and output a seventh audio signal to the mixer;

[0031] The first microphone sound effect processing module, with its input end connected to the output end of the second audio acquisition and encoding module and its output end connected to the input end of the mixer, is used to receive the second digital signal and output the second digital signal to the mixer;

[0032] The mixer has its output end connected to the input end of the volume control module, and is used to receive the seventh audio signal and the second digital signal, and output an eighth audio signal to the volume control module;

[0033] The volume control module has its output end connected to the input ends of the second digital audio mixing module and the third digital audio mixing module, and is used to receive the eighth audio signal, and output a ninth audio signal to the input ends of the second digital audio mixing module and the third digital audio mixing module;

[0034] The second digital audio mixing module has its output end connected to the input end of the first 2.4G protocol module, and is used to receive the ninth audio signal, and output a tenth audio signal to the first 2.4G protocol module;

[0035] The third digital audio mixing module has its output end connected to the input end of the first audio restoration and decoding module, and is used to receive the ninth audio signal, and output an eleventh audio signal to the first audio restoration and decoding module.

[0036] In one embodiment, the wireless monitoring module includes:

[0037] A second main control module, connected to the second 2.4G protocol module, and is used to output a third control signal to the second 2.4G protocol module;

[0038] The second 2.4G protocol module has its output end connected to the input end of the audio decoding module, and is used to receive the third control signal, and is communicatively connected to the first 2.4G protocol module, and is used to receive the restored audio signal output by the first 2.4G protocol module and output it to the audio decoding module;

[0039] The audio decoding module has its output end connected to the input end of the second audio restoration and decoding module, and is used to decode the restored audio signal and output it to the second audio restoration and decoding module;

[0040] The second audio restoration and decoding module has its output end connected to the monitoring earphone, and is used to restore the decoded original audio signal and output it to the monitoring earphone.

[0041] In one embodiment, the wireless microphone module includes:

[0042] A third main control module, connected to the third 2.4G protocol module, and is used to output a fourth control signal to the third 2.4G protocol module;

[0043] The third 2.4G protocol module, whose output end is connected to the input end of the fourth digital audio mixing module, is used to receive the fourth control signal and is communicatively connected to the first 2.4G protocol module, for receiving the restored audio signal output by the first 2.4G protocol module and outputting it to the fourth digital audio mixing module;

[0044] The third audio acquisition and encoding module, whose input end is connected to the built-in microphone and output end is connected to the input end of the second microphone sound effect processing module, is used to receive the twelfth audio signal output by the microphone, and after encoding the twelfth audio signal, output the thirteenth audio signal to the second microphone sound effect processing module;

[0045] The second microphone sound effect processing module, whose output end is connected to the input ends of the third digital audio mixing module and the fourth digital audio mixing module, is used to receive the thirteenth audio signal and output the sixteenth audio signal to the input ends of the third digital audio mixing module and the fourth digital audio mixing module;

[0046] The third digital audio mixing module, whose output end is connected to the third 2.4G protocol module, is used to output the sixteenth audio signal to the third 2.4G protocol module;

[0047] The fourth digital audio mixing module, whose output end is connected to the third audio restoration and decoding module, is used to receive the restored audio signal and the sixteenth audio signal and output the seventeenth audio signal to the third audio restoration and decoding module;

[0048] The third audio restoration and decoding module, whose output end is connected to the wired earphone, is used to receive the seventeenth audio signal and output the restored seventeenth audio signal to the wired earphone.

[0049] In one embodiment, the wireless slave module includes:

[0050] The third main control module, which is connected to the fourth 2.4G protocol module, is used to output the fifth control signal to the fourth 2.4G protocol module;

[0051] The fourth 2.4G protocol module, whose output end is connected to the input end of the second USB module, is used to receive the fifth control signal and receive the restored audio signal output by the first 2.4G protocol module and output it to the second USB module;

[0052] The second USB module, whose output end is connected to the mobile phone OTG interface, is used to output the restored audio signal to the mobile phone OTG interface.

[0053] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0054] This application outputs a first audio signal to the wireless host module through a wireless microphone module; a wireless accompaniment module outputs a second audio signal to the wireless host module; the wireless host module receives the first audio signal and the second audio signal, and outputs a restored audio signal to the mobile phone OTG interface, the multiple wireless slave modules, and the wireless monitoring module; the multiple wireless slave modules receive the restored audio signal and respectively transmit the restored audio signal to the multiple mobile phone OTG interfaces; the wireless monitoring module receives the restored audio signal and conducts monitoring; the wireless remote control module outputs a control signal to the wireless host module. All the live broadcast devices in this application are interconnected wirelessly, avoiding the troubles brought by wired connection methods during live broadcasts or venue changes, improving the reliability and tolerance of communication between devices, enhancing the usage efficiency of the system, and facilitating handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0056] Among them:

[0057] Figure 1 is a structural block diagram of a wireless live broadcast system in an embodiment;

[0058] Figure 2 is a structural block diagram of a wireless live broadcast system in another embodiment;

[0059] Figure 3 is a structural block diagram of a wireless monitoring module in an embodiment;

[0060] Figure 4 is a structural block diagram of a wireless microphone module in an embodiment;

[0061] Figure 5 is a structural block diagram of multiple wireless slave modules in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0062] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0063] Current general live broadcast scenarios require the use of many devices, such as live broadcast sound cards, microphones, monitoring headphones, on-site speakers, live broadcast mobile phones, and accompaniment mobile phones. At present, the above devices are all connected in a wired manner, and the matching parameters between the devices need to be connected and debugged every time they are used. Especially for outdoor live broadcasts, the location often needs to be changed. Such traditional live broadcast devices will be particularly inconvenient. The outdoor environment changes greatly, and there are problems with the reliability and tolerance of the wired connections between the devices. The connections between the devices also need to be specially arranged to avoid the on-site audience affecting the device connections, reducing the system's usage efficiency and being inconvenient to carry. To solve the above technical problems, the present application provides a wireless live broadcast system, as Figure 1 shown, including: a wireless microphone module 10, a wireless accompaniment module 20, a wireless host module 30, a plurality of wireless slave modules 40, a wireless monitoring module 50, and a wireless remote control module 60, wherein:

[0064] The wireless microphone module 10 is communicatively connected to the wireless host module 30 and is configured to output a first audio signal to the wireless host module 30; the wireless accompaniment module 20 is communicatively connected to the wireless host module 30 and is configured to output a second audio signal to the wireless host module 30; the wireless host module 30 is communicatively connected to a mobile phone OTG interface, a plurality of wireless slave modules 40, and a wireless monitoring module 50, and is configured to receive the first audio signal and the second audio signal and output a restored audio signal to the mobile phone OTG interface, the plurality of wireless slave modules 40, and the wireless monitoring module 50; the plurality of wireless slave modules 40 are respectively communicatively connected to a plurality of mobile phone OTG interfaces and are configured to receive the restored audio signal and respectively transmit the restored audio signal to the plurality of mobile phone OTG interfaces; the wireless monitoring module 50 is configured to receive the restored audio signal and perform monitoring; the wireless remote control module 60 is communicatively connected to the wireless host module 30 and is configured to output a control signal to the wireless host module 30. In this application, the first audio signal is output from the wireless microphone module to the wireless host module; the second audio signal is output from the wireless accompaniment module to the wireless host module; the wireless host module receives the first audio signal and the second audio signal and outputs a restored audio signal to the mobile phone OTG interface, the plurality of wireless slave modules, and the wireless monitoring module; the plurality of wireless slave modules receive the restored audio signal and respectively transmit the restored audio signal to the plurality of mobile phone OTG interfaces; the wireless monitoring module receives the restored audio signal and performs monitoring; the wireless remote control module outputs a control signal to the wireless host module. All the live broadcast devices in this application are communicatively connected to each other in a wireless manner, avoiding the trouble brought by the wired connection method during live broadcast or venue change, improving the reliability and tolerance of communication between devices, improving the usage efficiency of the system, and facilitating handling.

[0065] In one embodiment, as Figure 2 shown, the wireless live broadcast system further includes: a wired microphone module 70, a first wired accompaniment module 80, and a second wired accompaniment module 90. Among them, the wired microphone module 70 is communicatively connected to the wireless host module 30 and is configured to output a third audio signal to the wireless host module 30; the first wired accompaniment module 80 is communicatively connected to the wireless host module 30 and is configured to output a fourth audio signal to the wireless host module 30; the second wired accompaniment module 90 is communicatively connected to the wireless host module 30 and is configured to output a fifth audio signal to the wireless host module 30.

[0066] In one embodiment, as Figure 2As shown, the wireless host module 30 includes: a first main control module 301, an audio digital signal processor 302, a Bluetooth protocol module 303, a first 2.4G protocol module 304, a first audio acquisition and encoding module 305, a second audio acquisition and encoding module 306, and a first audio restoration and decoding module 307, where,

[0067] The first main control module 301 is connected to the Bluetooth protocol module 303 and the first 2.4G protocol module 304, and is configured to output a first control signal to the Bluetooth protocol module 303 and a second control signal to the first 2.4G protocol module 304;

[0068] The input end of the Bluetooth protocol module 303 is connected to the wireless accompaniment module 20, and the output end is connected to the audio digital signal processor 302, and is configured to receive the first control signal and output the second audio signal output by the wireless accompaniment module 20 to the audio digital signal processor 302;

[0069] The input end of the first 2.4G protocol module 304 is connected to the wireless microphone module 10, and the output end is connected to the audio digital signal processor 302, and is configured to receive the second control signal and output the first audio signal output by the wireless microphone module 10 to the audio digital signal processor 302;

[0070] The input end of the first audio acquisition and encoding module 305 is connected to the first wired accompaniment module 80, and the output end is connected to the audio digital signal processor 302, and is configured to convert the fourth audio signal output by the first wired accompaniment module 80 into a first digital signal and output the first digital signal to the audio digital signal processor 302;

[0071] The input end of the second audio acquisition and encoding module 306 is connected to the wired microphone module 70, and the output end is connected to the audio digital signal processor 302, and is configured to convert the third audio signal output by the wired microphone module 70 into a second digital signal and output the second digital signal to the audio digital signal processor 302;

[0072] The audio digital signal processor 302 is connected to the first 2.4G protocol module 304 and the first audio restoration and decoding module 307, and is configured to receive the second audio signal, the first audio signal, the first digital signal, and the second digital signal, and output the restored audio signal to the first 2.4G protocol module 304 and the first audio restoration and decoding module 307; the first 2.4G protocol module 304 is further configured to output the restored audio signal to the multiple wireless slave modules 40 and the wireless monitoring module 50;

[0073] The output end of the first audio restoration and decoding module 307 is connected to the wired earphone 100, and is used for converting the restored audio signal into an analog audio signal and outputting it to the wired earphone 100.

[0074] In one embodiment, as Figure 2 shown, the wireless live broadcast system further includes: a first USB module 308, wherein the input end of the first USB module 308 is connected to the output end of the audio digital signal processor 302, and the output end is connected to the mobile phone OTG interface 200, and is used for receiving the restored audio signal and outputting the restored audio signal to the mobile phone OTG interface 200.

[0075] In one embodiment, as Figure 2 shown, the wireless live broadcast system further includes: a power management module 309, wherein the power management module 309 is connected to the first main control module 301, the Bluetooth protocol module 303, the first 2.4G protocol module 304, the second audio acquisition and encoding module 306, the audio digital signal processor 302, and the first audio restoration and decoding module 307, and is used for supplying power to the first main control module 301, the Bluetooth protocol module 303, the first 2.4G protocol module 304, the second audio acquisition and encoding module 306, the audio digital signal processor 302, and the first audio restoration and decoding module 307.

[0076] In one embodiment, as Figure 2 shown, the audio digital signal processor 302 includes: an MP3 decoding module 3024, a first digital audio mixing module 3021, an audio sound effect processing module 3022, a first microphone sound effect processing module 3025, a mixer 3023, a volume control module 3027, a second digital audio mixing module 3026, and a third digital audio mixing module 3028, wherein,

[0077] The input end of the MP3 decoding module 3024 is connected to the output end of the second wired accompaniment module 90, and the output end is connected to the input end of the first digital audio mixing module 3021, and is used for receiving the fifth audio signal and outputting the fifth audio signal to the first digital audio mixing module 3021;

[0078] The input end of the first digital audio mixing module 3021 is connected to the output end of the first audio acquisition and encoding module 305 and the output end of the Bluetooth protocol module 303, and the output end is connected to the input end of the audio sound effect processing module 3022, and is used for receiving the first digital signal, the second audio signal, and the fifth audio signal, and outputting a sixth audio signal to the audio sound effect processing module 3022;

[0079] The output end of the audio sound effect processing module 3022 is connected to the input end of the mixer 3023, and is used to receive the sixth audio signal and output a seventh audio signal to the mixer 3023;

[0080] The input end of the first microphone sound effect processing module 3025 is connected to the output end of the second audio acquisition and encoding module 306, and the output end is connected to the input end of the mixer 3023, and is used to receive the second digital signal and output the second digital signal to the mixer 3023;

[0081] The output end of the mixer 3023 is connected to the input end of the volume control module 3027, and is used to receive the seventh audio signal and the second digital signal and output an eighth audio signal to the volume control module 3027;

[0082] The output end of the volume control module 3027 is connected to the input ends of the second digital audio mixing module 3026 and the third digital audio mixing module 3028, and is used to receive the eighth audio signal and output a ninth audio signal to the input ends of the second digital audio mixing module 3026 and the third digital audio mixing module 3028;

[0083] The output end of the second digital audio mixing module 3026 is connected to the input end of the first 2.4G protocol module 304, and is used to receive the ninth audio signal and output a tenth audio signal to the first 2.4G protocol module 304;

[0084] The output end of the third digital audio mixing module 3028 is connected to the input end of the first audio restoration and decoding module 307, and is used to receive the ninth audio signal and output an eleventh audio signal to the first audio restoration and decoding module 307.

[0085] In one embodiment, as Figure 3 shown, the wireless monitoring module 50 includes: a second main control module 501, a second 2.4G protocol module 502, an audio decoding module 503, and a second audio restoration and decoding module 504, wherein,

[0086] The second main control module 501 is connected to the second 2.4G protocol module 502 and is used to output a third control signal to the second 2.4G protocol module 502;

[0087] The output end of the second 2.4G protocol module 502 is connected to the input end of the audio decoding module 503, and is used to receive the third control signal and is communicatively connected to the first 2.4G protocol module 304, and is used to receive the restored audio signal output by the first 2.4G protocol module 304 and output it to the audio decoding module 503;

[0088] The output end of the audio decoding module 503 is connected to the input end of the second audio restoration and decoding module 504, and is used for decoding the restored audio signal and outputting it to the second audio restoration and decoding module 504;

[0089] The output end of the second audio restoration and decoding module 504 is connected to the monitoring earphone 505, and is used for restoring the decoded original audio signal and outputting it to the monitoring earphone 505.

[0090] In one embodiment, as Figure 4 shown, the wireless microphone module 10 includes: a third main control module 101, a third 2.4G protocol module 102, a third audio acquisition and encoding module 107, a second microphone sound effect processing module 104, a third digital audio mixing module 103, a fourth digital audio mixing module 105, and a third audio restoration and decoding module 106, wherein,

[0091] The third main control module 101 is connected to the third 2.4G protocol module 102, and is used for outputting a fourth control signal to the third 2.4G protocol module 102;

[0092] The output end of the third 2.4G protocol module 102 is connected to the input end of the fourth digital audio mixing module 105, and is used for receiving the fourth control signal and communicating with the first 2.4G protocol module 304, and is used for receiving the restored audio signal output by the first 2.4G protocol module 304 and outputting it to the fourth digital audio mixing module 105;

[0093] The input end of the third audio acquisition and encoding module 107 is connected to the built-in microphone, and the output end is connected to the input end of the second microphone sound effect processing module 104, and is used for receiving the twelfth audio signal output by the microphone, and after encoding the twelfth audio signal, outputting a thirteenth audio signal to the second microphone sound effect processing module 104;

[0094] The output end of the second microphone sound effect processing module 104 is connected to the input end of the third digital audio mixing module 103 and the input end of the fourth digital audio mixing module 105, and is used for receiving the thirteenth audio signal and outputting a sixteenth audio signal to the input end of the third digital audio mixing module 103 and the fourth digital audio mixing module 105;

[0095] The output end of the third digital audio mixing module 103 is connected to the third 2.4G protocol module 102, and is used for outputting the sixteenth audio signal to the third 2.4G protocol module 102;

[0096] The output end of the fourth digital audio mixing module 105 is connected to the third audio restoration and decoding module 106, and is used to receive the restored audio signal and the sixteenth audio signal, and output a seventeenth audio signal to the third audio restoration and decoding module 106;

[0097] The output end of the third audio restoration and decoding module 106 is connected to a wired earphone, and is used to receive the seventeenth audio signal, and output the restored seventeenth audio signal to the wired earphone.

[0098] In one embodiment, as Figure 5 shown, the wireless slave module 40 includes: a third main control module 401, a fourth 2.4G protocol module 402, and a second USB module 403, wherein,

[0099] The third main control module 401 is connected to the fourth 2.4G protocol module 402, and is used to output a fifth control signal to the fourth 2.4G protocol module 402;

[0100] The output end of the fourth 2.4G protocol module 402 is connected to the input end of the second USB module 403, and is used to receive the fifth control signal, and receive the restored audio signal output by the first 2.4G protocol module 304 and output it to the second USB module 403;

[0101] The output end of the second USB module 403 is connected to the mobile phone OTG interface 200, and is used to output the restored audio signal to the mobile phone OTG interface 200. It should be noted that all the above modules in this application are prior arts, and the specific models are not elaborated in this application.

[0102] In this application, the wireless microphone module outputs a first audio signal to the wireless host module; the wireless accompaniment module outputs a second audio signal to the wireless host module; the wireless host module receives the first audio signal and the second audio signal, and outputs a restored audio signal to the mobile phone OTG interface, the multiple wireless slave modules, and the wireless monitoring module; the multiple wireless slave modules receive the restored audio signal, and respectively transmit the restored audio signal to the multiple mobile phone OTG interfaces; the wireless monitoring module receives the restored audio signal and conducts monitoring; the wireless remote control module outputs a control signal to the wireless host module. All the live broadcast devices in this application are connected to each other wirelessly, avoiding the troubles brought by the wired connection method during live broadcast or venue change, improving the reliability and tolerance of communication between devices, improving the usage efficiency of the system, and facilitating handling.

[0103] The above-disclosed is only the preferred embodiment of the present utility model, and of course, it cannot be used to limit the scope of rights of the present utility model. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A wireless live broadcast system, characterized in that: include: A wireless microphone module, communicatively connected to the wireless host module, and configured to output a first audio signal to the wireless host module; A wireless accompaniment module, which is in communication with the wireless host module and is used to output a second audio signal to the wireless host module; A wireless host module is communicatively connected with the mobile phone OTG interface, multiple wireless slave modules and the wireless monitoring module, and is used to receive the first audio signal and the second audio signal, and output the restored audio signal to the mobile phone OTG interface, the multiple wireless slave modules and the wireless monitoring module; The multiple wireless slave modules are respectively connected to the multiple mobile phone OTG interfaces for communication, and are used to receive the restored audio signal, and transmit the restored audio signal to the multiple mobile phone OTG interfaces respectively; The wireless monitoring module is used to receive the restored audio signal and monitor it; The wireless remote control module is communicatively connected with the wireless host module and is used to output a control signal to the wireless host module.

2. The wireless live broadcast system according to claim 1, characterized in that: Also includes: a wired microphone module, communicatively connected to the wireless host module, and configured to output a third audio signal to the wireless host module; A first wired accompaniment module is communicatively connected to the wireless host module and is used to output a fourth audio signal to the wireless host module; The second wired accompaniment module is communicatively connected to the wireless host module and is used to output a fifth audio signal to the wireless host module.

3. The wireless live broadcast system according to claim 2, characterized in that: The wireless host module comprises: A first main control module, connected to the Bluetooth protocol module and the first 2.4G protocol module, configured to output a first control signal to the Bluetooth protocol module and output a second control signal to the first 2.4G protocol module; The Bluetooth protocol module, whose input end is connected to the wireless accompaniment module and whose output end is connected to the audio digital signal processor, is used to receive the first control signal and output the second audio signal output by the wireless accompaniment module to the audio digital signal processor; The first 2.4G protocol module has an input end connected to the wireless microphone module and an output end connected to the audio digital signal processor, and is used to receive the second control signal and output the first audio signal output by the wireless microphone module to the audio digital signal processor; A first audio acquisition encoding module, whose input end is connected to the first wired accompaniment module and whose output end is connected to the audio digital signal processor, is used for converting the fourth audio signal output by the first wired accompaniment module into a first digital signal, and outputting the first digital signal to the audio digital signal processor; A second audio acquisition encoding module, whose input end is connected to the wired microphone module and whose output end is connected to the audio digital signal processor, is used to convert the third audio signal output by the wired microphone module into a second digital signal, and output the second digital signal to the audio digital signal processor; The audio digital signal processor is connected to the first 2.4G protocol module and the first audio restoration decoding module, and is used to receive the second audio signal, the first audio signal, the first digital signal and the second digital signal, and output the restored audio signal to the first 2.4G protocol module and the first audio restoration decoding module; the first 2.4G protocol module is also used to output the restored audio signal to the multiple wireless slave modules and the wireless monitoring module; The output end of the first audio restoration decoding module is connected to the wired headset, and is used to convert the restored audio signal into an analog audio signal and then output it to the wired headset.

4. The wireless live broadcast system according to claim 3, characterized in that: Also includes: The first USB module has an input end connected to the output end of the audio digital signal processor and an output end connected to the mobile phone OTG interface, and is used to receive the restored audio signal and output the restored audio signal to the mobile phone OTG interface.

5. The wireless live broadcast system according to claim 3, characterized in that: Also includes: a power management module, connected to the first main control module, the Bluetooth protocol module, the first 2.4G protocol module, the second audio acquisition encoding module, the audio digital signal processor and the first audio restoration decoding module, and used to power the first main control module, the Bluetooth protocol module, the first 2.4G protocol module, the second audio acquisition encoding module, the audio digital signal processor and the first audio restoration decoding module.

6. The wireless live broadcast system according to claim 3, characterized in that: The audio digital signal processor comprises: An MP3 decoding module, whose input end is connected to the output end of the second wired accompaniment module, whose output end is connected to the input end of the first digital audio mixing module, is used to receive the fifth audio signal and output the fifth audio signal to the first digital audio mixing module; The first digital audio mixing module, whose input end is connected to the output end of the first audio acquisition and encoding module and the output end of the Bluetooth protocol module, and whose output end is connected to the input end of the audio and sound effect processing module, is used to receive the first digital signal, the second audio signal and the fifth audio signal, and output the sixth audio signal to the audio and sound effect processing module; The audio and sound effect processing module, whose output end is connected to the input end of the mixer, is used to receive the sixth audio signal and output the seventh audio signal to the mixer; A first microphone sound effect processing module, whose input end is connected to the output end of the second audio acquisition encoding module, and whose output end is connected to the input end of the mixer, and is used to receive the second digital signal and output the second digital signal to the mixer; The mixer, an output end of which is connected to an input end of the volume control module, is used to receive the seventh audio signal and the second digital signal, and output an eighth audio signal to the volume control module; The volume control module, the output end of which is connected to the input end of the second digital audio mixing module and the input end of the third digital audio mixing module, is used to receive the eighth audio signal and output the ninth audio signal to the input end of the second digital audio mixing module and the third digital audio mixing module; The second digital audio mixing module, whose output end is connected to the input end of the first 2.4G protocol module, is used to receive the ninth audio signal and output the tenth audio signal to the first 2.4G protocol module; The output end of the third digital audio mixing module is connected to the input end of the first audio restoration decoding module, and is used to receive the ninth audio signal and output the eleventh audio signal to the first audio restoration decoding module.

7. The wireless live broadcast system according to claim 3, characterized in that: The wireless monitoring module comprises: A second main control module, connected to the second 2.4G protocol module, and configured to output a third control signal to the second 2.4G protocol module; The output end of the second 2.4G protocol module is connected to the input end of the audio decoding module, used to receive the third control signal, and is communicatively connected to the first 2.4G protocol module, used to receive the restored audio signal output by the first 2.4G protocol module and output it to the audio decoding module; The audio decoding module, whose output end is connected to the input end of the second audio restoration decoding module, is used to decode the restored audio signal and output it to the second audio restoration decoding module; The output end of the second audio restoration decoding module is connected to the monitoring earphone, and is used to restore the decoded original audio signal and output it to the monitoring earphone.

8. The wireless live broadcast system according to claim 3, characterized in that: The wireless microphone module comprises: A third main control module, connected to the third 2.4G protocol module, and configured to output a fourth control signal to the third 2.4G protocol module; The output end of the third 2.4G protocol module is connected to the input end of the fourth digital audio mixing module, for receiving the fourth control signal, and is communicatively connected to the first 2.4G protocol module, for receiving the restored audio signal output by the first 2.4G protocol module and outputting it to the fourth digital audio mixing module; a third audio acquisition encoding module, whose input end is connected to the built-in microphone and whose output end is connected to the input end of the second microphone sound effect processing module, for receiving a twelfth audio signal output by the microphone, encoding the twelfth audio signal [Z1], and then outputting a thirteenth audio signal to the second microphone sound effect processing module; The second microphone sound effect processing module, the output end of which is connected to the input end of the third digital audio mixing module and the input end of the fourth digital audio mixing module, is used to receive the thirteenth audio signal and output the sixteenth audio signal to the input end of the third digital audio mixing module and the fourth digital audio mixing module; The third digital audio mixing module, an output end of which is connected to the third 2.4G protocol module, is used to output the sixteenth audio signal [Z2] to the third 2.4G protocol module; The fourth digital audio mixing module, whose output end is connected to the third audio restoration decoding module, is used to receive the restored audio signal and the sixteenth audio signal, and output the seventeenth audio signal to the third audio restoration decoding module; The output end of the third audio restoration and decoding module is connected to the wired headset, and is used to receive the seventeenth audio signal, and restore the seventeenth audio signal and output it to the wired headset.

9. The wireless live broadcast system according to claim 3, characterized in that: The wireless slave module comprises: A third main control module, connected to the fourth 2.4G protocol module, and configured to output a fifth control signal to the fourth 2.4G protocol module; The output end of the fourth 2.4G protocol module is connected to the input end of the second USB module, and is used to receive the fifth control signal, and receive the restored audio signal output by the first 2.4G protocol module and output it to the second USB module; The output end of the second USB module is connected to the OTG interface of the mobile phone, and is used to output the restored audio signal to the OTG interface of the mobile phone.

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