Microphone and receiver connection method, audio and video equipment and storage medium

Abstract

The present invention discloses a method for connecting a microphone to a receiver, an audio-visual device, and a storage medium. The method for connecting a microphone to a receiver includes sending a heartbeat broadcast via the receiver; when the wireless microphone receives the heartbeat broadcast, it feeds back an access request to the receiver; when the receiver receives the access request, it selects a synchronous working frequency and sends the synchronous working frequency to the wireless microphone; the wireless microphone adjusts its working frequency to the synchronous working frequency; and the receiver adjusts its current working frequency to the synchronous working frequency to establish a connection with the wireless microphone. In the present invention, when the receiver receives the access request, it selects a synchronous working frequency, and then both the receiver and the wireless microphone adjust their working frequencies to the synchronous working frequency to establish a connection, thereby avoiding manual frequency matching and achieving a more convenient connection between the wireless microphone and the receiver.

Description

Technical Field

[0001] The present invention relates to the technical field of audio signal processing, and in particular to a method for connecting a microphone and a receiver, audio and video equipment, and a storage medium. Background Art

[0002] Driven by strong demand for karaoke at home, in public places, at parties, and even for karaoke anytime, anywhere, karaoke products like microphone speakers and Bluetooth karaoke boxes are becoming increasingly popular. New demands are driving continuous product updates, such as allowing two microphones to be connected for simultaneous karaoke.

[0003] Before using wireless microphones for karaoke, manual pairing was often required. This was a cumbersome process, typically initiating pairing in a one-way manner via infrared or digital channels. The receiver would then have to continuously scan the frequency until it found the transmitter's pairing information. Existing microphone interconnection methods rely on built-in RF transmitter and receiver modules for audio signals within each microphone speaker or receiver. This required manual selection of the pairing frequency, ensuring that the transmitter and receiver modules transmitted signals within their respective frequency bands. This was a complex process and resulted in a poor user experience.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of the present invention is to provide a method for connecting a microphone to a receiver, an audio-visual device and a storage medium, aiming to solve the technical problem of very complicated wireless microphone connection in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides a method for connecting a microphone to a receiver, wherein the method is applied to an audio-visual device comprising: a receiver and a wireless microphone;

[0007] The receiver sends a heartbeat broadcast;

[0008] When the wireless microphone receives the heartbeat broadcast, it feeds back an access request to the receiver;

[0009] When the receiver receives the access request, it selects a synchronous working frequency point and sends the synchronous working frequency point to the wireless microphone;

[0010] The wireless microphone adjusts the operating frequency to the synchronous operating frequency;

[0011] The receiver adjusts the current operating frequency to the synchronous operating frequency to establish a connection with the wireless microphone.

[0012] Optionally, the step of the receiver sending a heartbeat broadcast includes:

[0013] The receiver detects microphone access status information;

[0014] The receiver generates a heartbeat broadcast according to the microphone access status information;

[0015] The receiver sends the heartbeat broadcast at a set frequency.

[0016] Optionally, when the wireless microphone receives the heartbeat broadcast, the step of feeding back an access request to the receiver includes:

[0017] The wireless microphone determines whether the receiver is in a connectable state according to the microphone access state information;

[0018] When the receiver is in a connectable state, the wireless microphone feeds back an access request to the receiver.

[0019] Optionally, when the receiver receives the access request, the step of selecting a synchronous working frequency point and sending the synchronous working frequency point to the wireless microphone includes:

[0020] When the receiver receives the access request from the wireless microphone according to the heartbeat broadcast feedback, it parses the access request and obtains the device parameter information of the wireless microphone;

[0021] The receiver determines whether the wireless microphone is in an accessible state according to the device parameter information;

[0022] The receiver detects the signal quality of the spare frequency point when the wireless microphone is in an accessible state;

[0023] The receiver selects the vacant frequency point with the best signal quality as the synchronous working frequency point, and sends the synchronous working frequency point to the wireless microphone.

[0024] Optionally, after the step of adjusting the current operating frequency of the receiver to the synchronous operating frequency and establishing a connection with the wireless microphone, the step further includes:

[0025] The receiver receives the upper layer interactive message output by the host computer;

[0026] The receiver generates an interactive instruction using a preset interactive protocol according to the upper-layer interactive message, and outputs the interactive instruction to the wireless microphone;

[0027] The wireless microphone displays the upper-layer interactive message through a display unit.

[0028] Optionally, after the step of displaying the upper-layer interactive message via a display unit by the wireless microphone, the method further comprises:

[0029] The receiver outputs a detection instruction to the wireless microphone;

[0030] When the wireless microphone receives the detection instruction or reaches a preset self-detection time, it self-detects current state information and feeds back the current state information to the receiver.

[0031] Optionally, after the step of adjusting the current operating frequency of the receiver to the synchronous operating frequency and establishing a connection with the wireless microphone, the step further includes:

[0032] After establishing a connection with the receiver, the wireless microphone continuously receives the heartbeat broadcast output by the receiver;

[0033] The wireless microphone determines whether it is in an offline state according to the connected microphone information in the heartbeat broadcast;

[0034] When the wireless microphone is in an offline state, it resends the access request to the receiver.

[0035] Optionally, the audio-visual device includes a first wireless microphone and a second wireless microphone connected at the synchronous operating frequency through respective internally provided radio frequency modules; after the receiver adjusts the current operating frequency to the synchronous operating frequency to establish a connection with the wireless microphones, the step further includes:

[0036] When the first wireless microphone does not receive the heartbeat information output by the second wireless microphone within the preset heartbeat time, the internally arranged radio frequency module is turned off.

[0037] In addition, to achieve the above-mentioned purpose, the present invention also proposes an audio-visual device, which includes a receiver and a wireless microphone. The receiver is provided with a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method for connecting the microphone and the receiver are implemented.

[0038] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a microphone and receiver connection program is stored. When the microphone and receiver connection program is executed by a processor, the steps of the microphone and receiver connection method described above are implemented.

[0039] The present invention provides a method for connecting a microphone to a receiver, an audio-visual device, and a storage medium. The method for connecting a microphone to a receiver sends a heartbeat broadcast through the receiver; when the wireless microphone receives the heartbeat broadcast, it feeds back an access request to the receiver; when the receiver receives the access request, it selects a synchronous working frequency and sends the synchronous working frequency to the wireless microphone; the wireless microphone adjusts the working frequency to the synchronous working frequency; and the receiver adjusts the current working frequency to the synchronous working frequency to establish a connection with the wireless microphone. In the present invention, when the receiver receives the access request, it selects a synchronous working frequency, and then both the receiver and the wireless microphone adjust their working frequencies to the synchronous working frequency to establish a connection, thereby avoiding manual frequency matching and achieving a more convenient connection between the wireless microphone and the receiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural diagram of a receiver in an audio-visual device in a hardware operating environment involved in an embodiment of the present invention;

[0041] Figure 2 A schematic flow chart of a first embodiment of a method for connecting a microphone to a receiver according to the present invention;

[0042] Figure 3 A schematic flow chart of a second embodiment of a method for connecting a microphone to a receiver according to the present invention;

[0043] Figure 4 A schematic flow chart of a third embodiment of a method for connecting a microphone to a receiver according to the present invention;

[0044] Figure 5 FIG. 4 is a flow chart of a fourth embodiment of a method for connecting a microphone to a receiver according to the present invention.

[0045] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] Reference Figure 1 , Figure 1 The figure is a schematic diagram of the structure of a receiver in an audio-visual device in the hardware operating environment involved in the embodiment of the present invention.

[0048] like Figure 1As shown, the receiver in the audio-visual device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a Bluetooth interface 1003, a radio frequency interface 1004, and a memory 1005. The communication bus 1002 is used to connect these components. The Bluetooth interface 1003 can be connected to a host computer or a wireless microphone. The radio frequency interface 1004 can optionally be a wireless radio frequency interface (such as a wireless fidelity (WI-FI) interface). The memory 1005 can be a high-speed random access memory (RAM) or a non-volatile memory (NVM), such as a disk drive. The memory 1005 can also be a storage device independent of the aforementioned processor 1001. The wireless microphone in the audio-visual device may include a radio frequency module and a Bluetooth module, while the receiver should include a radio frequency module, a Bluetooth module, and a main processor chip, which may be the aforementioned processor 1001. In addition, the audio and video equipment can also be set with a connection indicator light. When the receiver and the wireless microphone are paired, the current connection status can be displayed through the indicator light.

[0049] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the receiver in the audio-visual device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1005 identified as a computer storage medium may include an operating system, a radio frequency communication module, a Bluetooth interface module, and a microphone and receiver connection program.

[0051] Reference Figure 2 , Figure 2 1 is a flow chart of a first embodiment of a method for connecting a microphone to a receiver according to the present invention, which provides a first embodiment of a method for connecting a microphone to a receiver according to the present invention.

[0052] In a first embodiment, the method for connecting a microphone to a receiver comprises the following steps:

[0053] Step S10: The receiver sends a heartbeat broadcast.

[0054] It should be understood that in the embodiment, the karaoke device includes a receiver and a certain number of wireless microphones. The receiver can be used to receive audio signals collected by the wireless microphones and music signals output by a host device. Both the receiver and the wireless microphones include a Bluetooth module and a radio frequency module. The Bluetooth module can be used to transmit the music signal via Bluetooth. The host device can send the music signal to the radio frequency module via the Bluetooth module, and the radio frequency module can then transmit the music signal to the wireless microphones via the Bluetooth module. The radio frequency module can be used to transmit the audio signal of a human voice collected by the wireless microphones. For example, the wireless microphone can transmit the collected human voice to the receiver via the radio frequency module, or it can also transmit the voice to other wireless microphones operating at the same frequency. The wireless microphones can be connected via the receiver. For dual-microphone karaoke, the two microphones can be set to the same operating frequency using the same receiver, and then the vocal and music signals can be transmitted to achieve dual-microphone karaoke. For example, the receiver can simultaneously transmit the music signal to two wireless microphones, or the receiver can transmit the music signal to one microphone, which can then simultaneously transmit the music signal and the vocal signal to the other microphone via the radio frequency module.

[0055] It should be noted that heartbeat broadcast is a flooding information transmission method, which can send the information in the heartbeat broadcast to all wireless microphones.

[0056] During the connection between the wireless microphone and the receiver, the receiver can send the current status information in a flooding manner within a certain range, and the wireless microphones within the range can receive the heartbeat broadcast sent by the receiver.

[0057] Step S20: When the wireless microphone receives the heartbeat broadcast, it feeds back an access request to the receiver.

[0058] It's important to note that during the device connection process, one party must issue an access request, and upon receiving the access request, the other party connects the two devices. The access request is a request from the wireless microphone to establish a connection with the receiver. The access request can include wireless microphone device parameters, such as the microphone's identity document (ID), software and hardware version numbers, and device model.

[0059] When a wireless microphone needs to establish a connection with a receiver, the wireless microphone within the heartbeat broadcast flooding range of the receiver can extract its own device parameter information when receiving the heartbeat broadcast, and then generate an access request based on the extracted device parameter information, and feed the access request back to the receiver.

[0060] Step S30: When receiving the access request, the receiver selects a synchronous working frequency point and sends the synchronous working frequency point to the wireless microphone.

[0061] It should be understood that the receiver can simultaneously receive vocal signals collected by multiple wireless microphones. For different vocal signals, the receiver can receive different vocal signals collected by different microphones by connecting to different operating frequencies of the microphones. Wireless microphones with the same operating frequency can simultaneously send vocal signals to the receiver, thereby receiving vocal signals collected by multiple microphones simultaneously. Synchronous operating frequencies refer to the frequencies used for data transmission between the receiver and the wireless microphones. A receiver can include multiple operating frequencies, each of which can be connected to one or more wireless microphones.

[0062] In a specific implementation, when the receiver receives an access request fed back by a wireless microphone, it can identify the wireless microphone based on the access request, and then select a frequency point from the available frequency points as the synchronous working frequency point of the wireless microphone and the receiver, and feed back the address of the access request to the wireless receiver to generate the synchronous working frequency point, thereby sending the synchronous working frequency point to the wireless microphone.

[0063] Step S40: the wireless microphone adjusts the operating frequency to the synchronous operating frequency.

[0064] It should be understood that when the wireless microphone receives the synchronous working frequency feedback from the receiver, it can indicate that the wireless microphone can be connected to the receiver. The wireless microphone can adjust its own working frequency to the synchronous working frequency output by the receiver, so that a connection can be established between the receiver.

[0065] Step S50: the receiver adjusts the current operating frequency to the synchronous operating frequency to establish a connection with the wireless microphone.

[0066] It should be noted that after determining the synchronous working frequency, the receiver needs to send the synchronous working frequency to the wireless microphone, and also needs to adjust its own current working frequency to the synchronous working frequency. Among them, the process of the receiver adjusting its own working frequency and sending the synchronous working frequency can be partially sequential. The receiver can first send the synchronous working frequency to the wireless microphone, and then adjust its own current working frequency to the synchronous frequency; or it can first adjust its own current working frequency to the synchronous working frequency, and then send the synchronous working frequency to the wireless microphone. Taking the connection time into consideration, the receiver can first send the synchronous working frequency to the wireless microphone, and then the receiver and the wireless microphone can simultaneously adjust their respective working frequencies to the corresponding synchronous working frequencies, thereby improving the efficiency of establishing the connection.

[0067] It's important to note that a wireless microphone only needs to operate at one frequency to establish a connection with a receiver. Typically, a wireless receiver only operates at one frequency. A receiver may need to connect to multiple wireless microphones, so it can operate at multiple frequencies. The current operating frequency refers to the receiver's operating frequency at the current time.

[0068] In a first embodiment, a method for connecting a microphone to a receiver is provided, wherein the receiver sends a heartbeat broadcast; upon receiving the heartbeat broadcast, the wireless microphone feeds back an access request to the receiver; upon receiving the access request, the receiver selects a synchronous working frequency and sends the synchronous working frequency to the wireless microphone; the wireless microphone adjusts the working frequency to the synchronous working frequency; and the receiver adjusts the current working frequency to the synchronous working frequency to establish a connection with the wireless microphone. In this embodiment, upon receiving the access request, the receiver selects a synchronous working frequency, and then both the receiver and the wireless microphone adjust their working frequencies to the synchronous working frequency to establish a connection, thereby avoiding manual frequency matching and achieving a more convenient connection between the wireless microphone and the receiver.

[0069] Reference Figure 3 , Figure 3 This is a flow chart of a second embodiment of the method for connecting a microphone to a receiver according to the present invention. Figure 2 The first embodiment shown provides a second embodiment of the method for connecting a microphone and a receiver according to the present invention.

[0070] In the second embodiment, step S10 includes:

[0071] Step S101: The receiver detects microphone access status information.

[0072] It should be understood that the heartbeat broadcast output by the receiver should include the receiver's current microphone access status information to avoid receiving access requests from wireless microphones when the receiver is unable to continue connecting to the microphone. For example, a receiver can be connected to eight wireless microphones. At this time, the receiver has already connected to eight wireless microphones. When sending a heartbeat broadcast, the status of the eight currently connected microphones can be transmitted. The wireless microphones can then determine whether to respond with access requests based on the current microphone access status information in the heartbeat broadcast.

[0073] It should be noted that the microphone access status information may include information about the number of currently connected microphones and the number of currently connectable microphones. Of course, the microphone access status information may also include only information about the number of currently connectable microphones, or information about the total number of ports and the number of currently connectable microphones, which can reflect whether the receiver can currently connect to a wireless microphone.

[0074] In a specific implementation, the receiver can detect microphone access status information, such as the number of microphones already connected to it and the number of microphones that can be connected. For example, the receiver can output a heartbeat signal to each node used to connect to a wireless microphone and determine the current microphone access status based on the feedback from each node. Of course, during the detection process, the current time point can be detected separately, and the number of connected wireless microphones can also be detected separately; the number of connected wireless microphones at the current time point can also be detected separately, and then the number of connectable wireless microphones can be determined based on the receiver's device parameters.

[0075] Step S102: the receiver generates a heartbeat broadcast according to the microphone access status information.

[0076] It should be understood that the heartbeat broadcast has a certain data transmission protocol, and the data packets in the heartbeat broadcast also need to have a certain format. For example, the format of the data packets in the heartbeat broadcast can include information such as a packet header, a heartbeat count, the number of connected microphones, the number of connected microphones, the ID of the connected microphone, and a packet tail checksum.

[0077] During the heartbeat broadcast generation process, the receiver can select the sending format of the data packet, and then combine the detected microphone access status information according to the sending format of the data packet to generate the corresponding heartbeat broadcast; of course, it can also extract the format template corresponding to the sending format, and then fill the microphone access status information into the format template in sequence to obtain the heartbeat broadcast.

[0078] Step S103: The receiver sends the heartbeat broadcast at a set frequency.

[0079] It should be noted that, during the process of sending the heartbeat broadcast, the receiver may experience the process of connecting or disconnecting the wireless microphone. In this case, the information of the data packet in the heartbeat broadcast of the receiver needs to be adjusted, or the microphone access information needs to be re-detected. Wherein, the frequency at which the receiver sends the heartbeat broadcast refers to the frequency corresponding to the interval time between adjacent heartbeat broadcasts. Within this time period, the receiver can complete the adjustment or regeneration of the heartbeat broadcast. If the sending frequency of the heartbeat broadcast is too high, it may cause the wireless microphone to connect in time, resulting in a long time-consuming access process for the wireless microphone and low connection efficiency. In the present embodiment, the receiver can first select the sending frequency of the heartbeat broadcast, for example, send a heartbeat broadcast at a frequency of once every two seconds, and then send the heartbeat broadcast according to the selected frequency.

[0080] The step S20 includes:

[0081] Step S201: The wireless microphone determines whether the receiver is in a connectable state according to the microphone access state information.

[0082] It should be understood that the current state of a receiver can include a connectable state and an unconnectable state. If all ports within the receiver are connected to wireless microphones and no ports are idle, the receiver can be considered to be in an unconnectable state. If, on the other hand, there are idle ports within the receiver, the receiver can be considered to be in a connectable state. When a wireless microphone receives a heartbeat broadcast, it can determine whether the receiver is in a connectable state based on the microphone access status information contained in the heartbeat broadcast.

[0083] In a specific implementation, when a wireless microphone receives a heartbeat broadcast, it can parse the data packet in the heartbeat broadcast and determine the number of accessible microphones in the data packet. When the number of accessible microphones is not zero, it can be determined that the receiver is in a connectable state.

[0084] Step S202: When the receiver is in a connectable state, the wireless microphone feeds back an access request to the receiver.

[0085] It should be understood that the connectable state defines the receiver's state, which can be either connectable or disconnected. Upon determining that the receiver is in the connectable state, the wireless microphone can generate a corresponding access request based on its own device parameter information, such as its ID, hardware version, software version, and product model, and then feedback the access request to the receiver using the address to which the receiver sends the heartbeat broadcast. The data packet within the feedback request should be fed back in a specific data format, such as including a header and trailer checksum, and intermediate device parameter information.

[0086] The step S30 includes:

[0087] Step S301: When the receiver receives an access request from a wireless microphone according to the heartbeat broadcast feedback, the receiver parses the access request and obtains device parameter information of the wireless microphone.

[0088] It is understandable that there may be mismatches, incompatibilities, and other abnormalities between the receiver and the wireless microphone. In this case, audio data transmission may not be possible between the receiver and the wireless microphone, and there is no point in establishing a connection between an unmatched wireless receiver and a receiver.

[0089] Therefore, when the receiver receives an access request sent by the wireless microphone, it can also parse the access request and extract device parameter information such as the device ID, hardware version, software version, product model, etc. of the wireless microphone in the data packet within the access request.

[0090] Step S302: The receiver determines whether the wireless microphone is in an accessible state according to the device parameter information.

[0091] In this embodiment, the receiver can determine the compatibility and matching degree between the wireless microphone and the receiver based on the device parameter information provided by the wireless microphone. Specifically, the receiver can compare the product model of the wireless microphone sending the access request with the product signal set of wireless microphones to which it can normally connect. If the product model of the wireless microphone sending the access request is within the product signal set of wireless microphones to which the receiver can normally connect, the receiver determines that the wireless microphone is compatible with the receiver. Alternatively, the software version of the wireless microphone can be matched with the software versions supported by the receiver. If a match is successful, the receiver determines that the wireless microphone and receiver can connect for data transmission.

[0092] Step S303: When the wireless microphone is in an accessible state, the receiver detects the signal quality of the available frequency points.

[0093] It should be understood that the accessible state is a state that limits the wireless microphone. The vacant frequency refers to the frequency that is not connected to other wireless microphones in the receiver at the current time point. There may be multiple vacant frequencies in the receiver, and the signal quality of the signals transmitted by each vacant frequency is different. Signal quality refers to the accuracy of the transmitted signal during the signal transmission process. The better the signal quality, the more accurate the transmitted signal code elements, and the more accurate the information obtained. When the receiver determines that the wireless microphone that sends the access request can be connected, the receiver can also detect the signal quality of the remaining vacant frequencies, for example, by transmitting a signal of a certain number of code elements through all the vacant frequencies, and determining the signal quality based on the accuracy of the received code elements.

[0094] Step S304: the receiver selects the vacant frequency point with the best signal quality as the synchronous working frequency point, and sends the synchronous working frequency point to the wireless microphone.

[0095] In this embodiment, during the synchronization operating frequency selection process, selecting an unused frequency with average signal quality as the synchronization operating frequency may result in a decrease in the accuracy of the audio signal transmitted using the synchronization operating frequency, while the unused unused frequency with the best signal quality is not effectively utilized. Therefore, in this embodiment, the receiver can select an unused frequency with the best signal quality as the synchronization operating frequency to improve the accuracy of the audio signal.

[0096] In the second embodiment, mutual confirmation between the wireless microphone and receiver effectively avoids invalid connections, further improving the efficiency of establishing a connection between the microphone and receiver. Furthermore, the receiver selects an unused frequency point with the best signal quality as the synchronization operating frequency point, thereby improving the accuracy of the audio signal.

[0097] Reference Figure 4 , Figure 4 This is a flow chart of a third embodiment of a method for connecting a microphone to a receiver according to the present invention. The third embodiment of the method for connecting a microphone to a receiver according to the present invention is proposed based on the first embodiment or the second embodiment.

[0098] In the third embodiment, after step S50, the method further includes:

[0099] Step S51: The receiver receives the upper-layer interactive message output by the host computer.

[0100] It should be understood that in the audio-visual equipment, the receiver is also connected to the equipment related to the host computer. The host computer can be a computer, server and other equipment. The host computer can provide users with a song request platform, output song audio, etc. The host computer can establish a connection between the receiver and each wireless microphone and control the wireless microphone. For example, the display unit on the wireless microphone is controlled to display interactive information, status information, etc. In this embodiment, the wireless microphone may include a display unit to display information that needs to be displayed, such as the currently used frequency, battery level, microphone ID, the name of the currently playing song, the next song and other information. Among them, the display unit may be an OLED display screen.

[0101] It should be noted that the upper-layer interactive message is output by the host computer and is used to control the wireless microphone and the messages used for interaction, such as displaying the accompaniment name, music style, karaoke score and other interactive messages.

[0102] Step S52: The receiver generates an interactive instruction using a preset interactive protocol according to the upper-layer interactive message, and outputs the interactive instruction to the wireless microphone.

[0103] It should be noted that interactive commands are commands generated by the controller to control the interaction between the wireless microphone and user information. A preset interactive protocol is a pre-set protocol for transmitting interactive messages. This preset interactive protocol can include a packet header, interactive information, and packet footer verification, for example, a protocol including a packet header, accompaniment name, music style, karaoke score, and a packet footer verification format.

[0104] In a specific implementation, when the receiver receives the upper-layer interactive message output by the host computer, it can adjust the upper-layer interactive message according to the preset interactive protocol to generate an interactive instruction, and then send the interactive instruction to the wireless microphone.

[0105] Step S53: The wireless microphone displays the upper-layer interactive message via a display unit.

[0106] It is understandable that when the wireless microphone receives an interactive instruction, it can parse or demodulate the interactive instruction to extract the upper-level interactive message in the interactive instruction, and then display the upper-level interactive message through the display unit. For example, if the host computer requires the wireless microphone to display the current karaoke score to interact with the user, the host computer can output the specific karaoke score to the receiver. The receiver adjusts the karaoke score according to the preset interactive protocol, obtains the interactive instruction to display the karaoke score, and sends the interactive instruction to the corresponding wireless microphone. When the wireless microphone receives the interactive instruction, it parses the interactive instruction using the preset interactive protocol to obtain the current karaoke score, and then displays the specific score of the karaoke score through the display unit. The wireless microphone can display the score value and color interaction on the OLED screen according to the karaoke score transmitted by the receiver, the wireless microphone can display the accompaniment name transmitted by the receiver on the OLED screen, and the wireless microphone can also display the color and name synchronously on the OLED screen according to the style of the music transmitted by the receiver.

[0107] Step S54: the receiver outputs a detection instruction to the wireless microphone.

[0108] Furthermore, in this embodiment, the receiver can also output a detection instruction to the wireless microphone. This detection instruction is an instruction that controls the wireless microphone to detect its own status. This detection instruction can detect device parameters such as the remaining battery level of the wireless microphone or the brightness of the display unit, or it can detect the current operating status of the wireless microphone, such as the state of collecting human voices or the state of interaction with other wireless microphones.

[0109] Step S55: When the wireless microphone receives the detection instruction or reaches the preset self-detection time, it self-detects the current state information and feeds back the current state information to the receiver.

[0110] In this embodiment, the receiver can directly output a detection command to the wireless microphone. Of course, the wireless microphone can also perform a self-test at a predetermined interval. The predetermined self-test interval is the interval between the predetermined intervals for the wireless microphone to detect its own status. The predetermined self-test interval can be 2 to 5 seconds. Of course, upon receiving the detection command, the self-test should be immediately initiated and the current status information should be fed back.

[0111] In a specific implementation, the wireless microphone can start a self-test at a preset self-test time interval, detect its own remaining power, display unit brightness, current working status, etc. to obtain current status information, and then feed back the current status information to the receiver.

[0112] Reference Figure 5 , Figure 5 The fourth embodiment of the method for connecting a microphone to a receiver is provided based on any one of the first to third embodiments.

[0113] In this embodiment, the wireless microphone can also detect the connection status between itself and the receiver to avoid disconnection between itself and the receiver and failure of data transmission. After step S50, the step of detecting the connection status of the wireless microphone specifically includes:

[0114] Step S501: After establishing a connection with the receiver, the wireless microphone continuously receives the heartbeat broadcast output by the receiver.

[0115] It should be understood that the heartbeat broadcast sent by the receiver can include the quantity information and corresponding ID information of the currently connected microphone. After the wireless microphone is connected with the receiver, it can also continue to receive the heartbeat broadcast output by the receiver, and then obtain the ID information of the connected microphone in the heartbeat broadcast. In a specific implementation, the Bluetooth module of the wireless microphone can still continue to receive the heartbeat broadcast output by the receiver after being connected with the receiver.

[0116] Step S502: The wireless microphone determines whether it is in an offline state according to the connected microphone information in the heartbeat broadcast.

[0117] It should be noted that the connection status of the wireless microphone includes an online state and an offline state. The online state refers to the state in which the wireless microphone is currently connected to the receiver, and the offline state refers to the state in which the wireless microphone is currently disconnected from the receiver.

[0118] In this embodiment, the wireless microphone can confirm whether its own unique identification information exists in the connected microphone information in the received heartbeat broadcast, such as whether its own ID exists in the connected microphone ID, etc., to determine whether the current microphone itself is in an offline state. The unique identification information refers to the identification information that distinguishes the wireless microphone from other wireless microphones. The unique identification information corresponding to different wireless microphones is not the same. The unique identification information can be the hardware serial number, ID, etc. of the device. When the current connected microphone information does not include its own unique identification information, it can be determined that the current wireless microphone is in an offline state.

[0119] Step S503: When the wireless microphone is in an offline state, the wireless microphone resends the access request to the receiver.

[0120] When it is confirmed that the wireless microphone is offline, the wireless microphone can resend an access request to the receiver. When the receiver receives the corresponding access request again, it can reselect the synchronous working frequency and feedback, thereby reconnecting the wireless microphone to the receiver.

[0121] In a third embodiment, the receiver can enable the wireless microphone to display upper-layer interactive messages and interact with the user, further improving the user experience. In addition, it can continuously receive heartbeat broadcasts, determine the connection status of the wireless microphone, and reconnect to the receiver when the wireless microphone is offline.

[0122] In this embodiment, after step S50, the following steps are further included:

[0123] When the first wireless microphone does not receive the heartbeat information output by the second wireless microphone within the preset heartbeat time, the internally arranged radio frequency module is turned off.

[0124] It should be understood that different wireless microphones can be connected through a receiver, and then two wireless microphones operating at synchronized operating frequencies can achieve dual-microphone karaoke. During dual-microphone karaoke, audio data needs to be transmitted through the two wireless microphones through their respective internal RF modules. During the audio data transmission process, the power consumption of the wireless microphones will increase. Therefore, during dual-microphone karaoke, when one wireless microphone is disconnected, the other wireless microphone can actively turn off the RF module, thereby reducing the power consumption caused by the RF module. The wireless microphone can establish a connection with the receiver through the internal Bluetooth module.

[0125] It should be noted that the first wireless microphone and the second wireless microphone are only used to distinguish between two wireless microphones for dual-microphone karaoke and do not impose any other restrictions on wireless microphones. The preset heartbeat time is a pre-set heartbeat time. This preset heartbeat time can be the maximum time for a normal heartbeat mechanism to generate a heartbeat. Of course, other times can also be selected as long as the preset heartbeat time is greater than the maximum time for a normal heartbeat mechanism to generate a heartbeat.

[0126] In a specific implementation, since there is a heartbeat detection mechanism between the wireless microphones in the synchronous working frequency point, the first wireless microphone can continuously monitor the heartbeat information of the second wireless microphone. When the time for which no heartbeat information is detected is greater than the preset heartbeat time, it can be determined that the connection between the second wireless microphone and the first wireless microphone has been disconnected, and the first wireless microphone can turn off its internal RF module, thereby reducing the power consumption of the wireless microphone.

[0127] In addition, an embodiment of the present invention further provides a storage medium storing a microphone-receiver connection program. When the microphone-receiver connection program is executed by a processor, the steps of the microphone-receiver connection method described above are implemented.

[0128] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0129] The serial numbers of the embodiments of the present invention are for descriptive purposes only and do not represent superiority or inferiority of the embodiments. In a unit claim that enumerates several means, several of these means may be embodied by the same item of hardware. The use of the terms first, second, and third, etc., does not denote any order; these terms should be interpreted as designations.

[0130] Through the above description of the embodiments, those skilled in the art will clearly understand that the above-mentioned embodiments can be implemented using software plus a necessary general-purpose hardware platform. Of course, hardware can also be used, but in many cases, the former is a more preferred embodiment. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as a read-only memory image (ROM) / random access memory (RAM), a magnetic disk, or an optical disk) and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0131] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for connecting a microphone to a receiver, characterized in that: The microphone connection method is applied to an audio-visual device comprising: a receiver and a wireless microphone; The receiver sends a heartbeat broadcast; When the wireless microphone receives the heartbeat broadcast, it feeds back an access request to the receiver; When the receiver receives the access request, it selects a synchronous working frequency point and sends the synchronous working frequency point to the wireless microphone; The wireless microphone adjusts the operating frequency to the synchronous operating frequency; The receiver adjusts the current operating frequency to the synchronous operating frequency to establish a connection with the wireless microphone.

2. The method for connecting a microphone to a receiver according to claim 1, wherein: The step of the receiver sending a heartbeat broadcast comprises: The receiver detects microphone access status information; The receiver generates a heartbeat broadcast according to the microphone access status information; The receiver sends the heartbeat broadcast at a set frequency.

3. The method for connecting a microphone to a receiver according to claim 2, wherein: The step of the wireless microphone feeding back an access request to the receiver upon receiving the heartbeat broadcast includes: The wireless microphone determines whether the receiver is in a connectable state according to the microphone access state information; When the receiver is in a connectable state, the wireless microphone feeds back an access request to the receiver.

4. The method for connecting a microphone to a receiver according to any one of claims 1 to 3, wherein: The steps of the receiver selecting a synchronous working frequency upon receiving the access request and sending the synchronous working frequency to the wireless microphone include: When the receiver receives the access request from the wireless microphone according to the heartbeat broadcast feedback, it parses the access request and obtains the device parameter information of the wireless microphone; The receiver determines whether the wireless microphone is in an accessible state according to the device parameter information; The receiver detects the signal quality of the spare frequency point when the wireless microphone is in an accessible state; The receiver selects the vacant frequency point with the best signal quality as the synchronous working frequency point, and sends the synchronous working frequency point to the wireless microphone.

5. The method for connecting a microphone to a receiver according to claim 1, wherein: After the receiver adjusts the current operating frequency to the synchronous operating frequency and establishes a connection with the wireless microphone, the method further includes: The receiver receives the upper layer interactive message output by the host computer; The receiver generates an interactive instruction using a preset interactive protocol according to the upper-layer interactive message, and outputs the interactive instruction to the wireless microphone; The wireless microphone displays the upper-layer interactive message through a display unit.

6. The method for connecting a microphone to a receiver according to claim 5, wherein: After the step of displaying the upper-layer interactive message via the display unit by the wireless microphone, the method further includes: The receiver outputs a detection instruction to the wireless microphone; When the wireless microphone receives the detection instruction or reaches a preset self-detection time, it self-detects current state information and feeds back the current state information to the receiver.

7. The method for connecting a microphone to a receiver according to claim 1, wherein: After the receiver adjusts the current operating frequency to the synchronous operating frequency and establishes a connection with the wireless microphone, the method further includes: After establishing a connection with the receiver, the wireless microphone continuously receives the heartbeat broadcast output by the receiver; The wireless microphone determines whether it is in an offline state according to the connected microphone information in the heartbeat broadcast; When the wireless microphone is in an offline state, it resends the access request to the receiver.

8. The method for connecting a microphone to a receiver according to claim 1, wherein: The audio-visual device includes: a first wireless microphone and a second wireless microphone connected via respective internal radio frequency modules; after the receiver adjusts the current operating frequency to the synchronous operating frequency to establish a connection with the wireless microphones, the device further includes: When the first wireless microphone does not receive the heartbeat information output by the second wireless microphone within the preset heartbeat time, the internally arranged radio frequency module is turned off.

9. An audio-visual device, characterized in that: The audio-visual device includes a receiver and a wireless microphone. The receiver is provided with a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the microphone-receiver connection method as described in any one of claims 1 to 8 are implemented.

10. A storage medium, characterized in that: The storage medium stores a microphone-receiver connection program, which, when executed by the processor, implements the steps of the microphone-receiver connection method according to any one of claims 1 to 8.

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